What are the most popular destinations to fly to from Ontario?

For the current month, the most popular flights from Ontario are Dallas/Fort Worth Airport, Denver, Guadalajara. Denver, Dallas/Fort Worth Airport, Guadalajara are the most popular locations from Ontario year round.

What is the cheapest flight from Ontario to anywhere?

Users have flown out of Ontario for as low as ₱5,409 to Las Vegas (prices may vary depending on the airline and departure time). On average, users have booked flights for ₱25,957 to fly from Ontario.

What are the cheapest airlines flying from Ontario to anywhere?

According to our data, users have found Frontier, United Airlines, and American Airlines to have the cheapest round-trip prices from Ontario. Some of the destinations and prices are as follows: Frontier flights from Ontario to San Francisco (₱2,666). United Airlines flights from Ontario to San Francisco (₱7,081). American Airlines flights from Ontario to Lexington Blue Grass (₱16,661).

What is the cheapest premium economy flight from Ontario?

If you're looking for an elevated level of comfort for your next adventure, premium economy flights from Ontario may suit your needs. The cheapest premium economy flights from Ontario are: Fly from Ontario to Taipei City Taiwan Taoyuan Intl Airport starting at ₱148,229

What is the cheapest month to fly from Ontario?

August is currently the cheapest month to fly from Ontario . At this moment in time June is the most expensive month. These prices are determined by multiple factors and booking in advance can help keep costs down if your schedule is not as flexible.

Where are the cheapest places to fly to from Ontario?

Check out the cheapest flights from Ontario to embark to: Fly from Ontario to Manila from ₱39,821 Fly from Ontario to Cebu City from ₱43,334

₱2,900+ Flights from Ontario

What to know about flights from Ontario

Cheapest one-way flight	₱2,217
Cheapest round-trip flight	₱37,350
Cheapest airline	Alaska Airlines
Most popular destination	Manila Ninoy Aquino Intl (MNL)
Good round-trip deal	₱5,409 or less

The cheapest one-way flight from Ontario is currently to Kansas City.

Search Deals

The cheapest round-trip flight from Ontario is currently to Incheon Intl.

Search Deals

On average, Alaska Airlines currently has the cheapest one-way flight from Ontario (avg. price of ₱6,458).

Search Deals

Manila Ninoy Aquino Intl (MNL) is currently the most popular flight destination from Ontario (average round-trip price of ₱32,238).

Search Deals

Price to beat on a round-trip flight from Ontario.

Search Deals

Find flights from Ontario

Cheapest flights from Ontario
Explore the most affordable flight options available from Ontario. Find the lowest fares based on data from user searches, with prices last updated on May 15, 2025.

Wed 8/1311:45 pmONT - CRK

1 stop28h 10mSTARLUX Airlines

Sun 8/247:55 pmCRK - ONT

1 stop36h 45mSTARLUX Airlines

Deal found 5/14₱41,605

Tue 11/117:00 amONT - CEB

2 stops23h 25mKorean Air

Mon 12/112:10 amCEB - ONT

2 stops33h 07mKorean Air

Deal found 5/14₱43,334

Wed 8/611:45 pmONT - CEB

1 stop28h 20mSTARLUX Airlines

Sun 8/248:05 pmCEB - ONT

1 stop36h 35mSTARLUX Airlines

Deal found 5/15₱43,613

Sat 11/17:00 amONT - MNL

2 stops37h 00mKorean Air

Tue 11/1812:55 amMNL - ONT

2 stops32h 22mKorean Air

Deal found 5/15₱43,948

Mon 9/2212:10 amONT - MNL

1 stop18h 25mChina Airlines

Tue 10/74:00 amMNL - ONT

1 stop29h 00mChina Airlines

Deal found 5/13₱44,171

Tue 8/2612:45 amONT - CEB

1 stop19h 20mChina Airlines

Thu 9/2512:05 pmCEB - ONT

1 stop20h 55mChina Airlines

Deal found 5/14₱44,338

Sun 8/106:39 pmONT - MNL

1 stop20h 16mUnited Airlines

Wed 9/108:40 amMNL - ONT

1 stop23h 57mUnited Airlines

Deal found 5/14₱47,350

Wed 10/157:00 amONT - MNL

2 stops24h 05mMultiple Airlines

Wed 11/512:55 amMNL - ONT

2 stops32h 22mMultiple Airlines

Deal found 5/14₱48,855

Tue 9/212:45 amONT - CEB

1 stop19h 20mMultiple Airlines

Wed 10/110:50 amCEB - ONT

1 stop21h 15mMultiple Airlines

Deal found 5/14₱49,079

Wed 8/276:00 amONT - CEB

2 stops25h 05mUnited Airlines

Thu 9/259:15 amCEB - ONT

2 stops23h 17mUnited Airlines

Deal found 5/14₱54,600

Wed 9/311:10 pmONT - CRK

1 stop28h 45mMultiple Airlines

Sat 9/612:00 amCRK - ONT

2 stops33h 40mMultiple Airlines

Deal found 5/14₱57,835

Fri 8/297:22 pmONT - CRK

2 stops24h 38mEVA Air

Sat 9/2012:00 pmCRK - ONT

2 stops26h 59mEVA Air

Deal found 5/15₱61,460

Best flights from Ontario
Discover carefully curated flight deals from Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 15, 2025.

Wed 8/1311:45 pmONT - CRK

1 stop28h 10mSTARLUX Airlines

Sun 8/247:55 pmCRK - ONT

1 stop36h 45mSTARLUX Airlines

Deal found 5/14₱41,605

Tue 11/117:00 amONT - CEB

2 stops23h 25mKorean Air

Mon 12/112:10 amCEB - ONT

2 stops33h 07mKorean Air

Deal found 5/14₱43,334

Mon 9/2212:10 amONT - MNL

1 stop18h 25mChina Airlines

Tue 10/74:00 amMNL - ONT

1 stop29h 00mChina Airlines

Deal found 5/13₱44,171

Sun 8/106:39 pmONT - MNL

1 stop20h 16mUnited Airlines

Wed 9/108:40 amMNL - ONT

1 stop23h 57mUnited Airlines

Deal found 5/14₱47,350

Wed 10/157:00 amONT - MNL

2 stops24h 05mMultiple Airlines

Wed 11/512:55 amMNL - ONT

2 stops32h 22mMultiple Airlines

Deal found 5/14₱48,855

Fri 8/297:22 pmONT - CRK

2 stops24h 38mEVA Air

Sat 9/2012:00 pmCRK - ONT

2 stops26h 59mEVA Air

Deal found 5/15₱61,460

Wed 8/611:45 pmONT - CEB

1 stop28h 20mSTARLUX Airlines

Sun 8/248:05 pmCEB - ONT

1 stop36h 35mSTARLUX Airlines

Deal found 5/15₱43,613

Sat 11/17:00 amONT - MNL

2 stops37h 00mKorean Air

Tue 11/1812:55 amMNL - ONT

2 stops32h 22mKorean Air

Deal found 5/15₱43,948

Tue 8/2612:45 amONT - CEB

1 stop19h 20mChina Airlines

Thu 9/2512:05 pmCEB - ONT

1 stop20h 55mChina Airlines

Deal found 5/14₱44,338

Tue 9/212:45 amONT - CEB

1 stop19h 20mMultiple Airlines

Wed 10/110:50 amCEB - ONT

1 stop21h 15mMultiple Airlines

Deal found 5/14₱49,079

Wed 8/276:00 amONT - CEB

2 stops25h 05mUnited Airlines

Thu 9/259:15 amCEB - ONT

2 stops23h 17mUnited Airlines

Deal found 5/14₱54,600

Wed 11/511:30 amONT - CRK

2 stops36h 25mQatar Airways

Mon 11/175:55 pmCRK - ONT

2 stops40h 22mQatar Airways

Deal found 5/14₱116,171

Last-minute flights from Ontario
Discover last-minute flight deals departing from Ontario. Data last updated May 15, 2025 and is based on user searches.

Tue 5/206:00 amONT - MNL

2 stops25h 05mKorean Air

Sun 5/251:10 amMNL - ONT

2 stops32h 10mKorean Air

Deal found 5/14₱62,910

Tue 5/2012:10 amONT - CEB

1 stop19h 55mChina Airlines

Wed 8/66:05 amCEB - ONT

2 stops27h 35mChina Airlines

Deal found 5/15₱79,530

Tue 5/2011:51 amONT - MNL

2 stops29h 34mQatar Airways

Sun 6/111:45 pmMNL - ONT

2 stops33h 40mQatar Airways

Deal found 5/14₱129,724

Tue 5/207:20 pmONT - CRK

2 stops22h 40mMultiple Airlines

Sat 6/710:00 amCRK - ONT

1 stop22h 05mMultiple Airlines

Deal found 5/14₱139,595

Wed 5/2112:10 amONT - MNL

1 stop18h 25mChina Airlines

Fri 6/64:50 pmMNL - ONT

1 stop16h 10mChina Airlines

Deal found 5/14₱65,866

Wed 5/211:45 pmONT - MNL

1 stop25h 10mUnited Airlines

Tue 6/38:40 amMNL - ONT

1 stop23h 59mUnited Airlines

Deal found 5/14₱78,303

Thu 5/2212:10 amONT - CEB

1 stop19h 55mMultiple Airlines

Fri 6/208:05 pmCEB - ONT

1 stop36h 00mMultiple Airlines

Deal found 5/14₱73,674

Thu 5/2211:51 amONT - CEB

2 stops38h 34mQatar Airways

Mon 5/267:25 pmCEB - ONT

3 stops38h 00mQatar Airways

Deal found 5/14₱313,657

Fri 5/236:00 amONT - CEB

2 stops26h 30mKorean Air

Thu 6/191:00 amCEB - ONT

2 stops31h 10mKorean Air

Deal found 5/13₱97,153

Fri 5/236:00 amONT - CEB

2 stops25h 05mUnited Airlines

Fri 6/209:15 amCEB - ONT

2 stops23h 23mUnited Airlines

Deal found 5/13₱99,942

Sat 5/249:41 pmONT - MNL

2 stops46h 24mMultiple Airlines

Sat 8/94:50 pmMNL - ONT

1 stop16h 50mMultiple Airlines

Deal found 5/14₱67,706

Sun 5/257:05 amONT - MNL

3 stops44h 40mKLM

Sun 6/298:05 pmMNL - ONT

3 stops41h 40mKLM

Deal found 5/14₱161,011

One-way flights from Ontario
Search for one-way flight options from Ontario. Find affordable one-way fares based on user searches. Data last updated May 15, 2025.

Tue 8/56:30 amONT - MNL

2 stops28h 25mKorean Air

Deal found 5/13₱23,033

Thu 9/47:00 amONT - CEB

2 stops25h 30mKorean Air

Deal found 5/14₱23,758

Wed 8/1311:45 pmONT - CRK

1 stop28h 10mSTARLUX Airlines

Deal found 5/15₱24,037

Sun 8/1712:45 amONT - MNL

1 stop17h 50mChina Airlines

Deal found 5/15₱25,041

Wed 8/207:00 amONT - CRK

2 stops26h 25mMultiple Airlines

Deal found 5/15₱25,376

Sun 8/101:19 pmONT - MNL

1 stop25h 36mUnited Airlines

Deal found 5/14₱25,432

Wed 7/26:25 amONT - CRK

2 stops27h 00mKorean Air

Deal found 5/14₱26,547

Mon 8/116:10 amONT - MNL

2 stops24h 05mMultiple Airlines

Deal found 5/14₱27,049

Wed 8/134:00 pmONT - MNL

1 stop21h 05mPhilippine Airlines

Deal found 5/15₱30,172

Sun 7/206:00 amONT - MNL

2 stops32h 35mJapan Airlines

Deal found 5/14₱30,563

Mon 7/141:19 pmONT - CEB

2 stops41h 46mUnited Airlines

Deal found 5/15₱31,566

Sun 7/1312:45 amONT - CEB

1 stop19h 20mChina Airlines

Deal found 5/15₱32,570

International flights from Ontario
Find cheap international flights from Ontario based on historic user searches and pricing. Information updated on May 15, 2025.

Tue 9/167:00 amONT - DXB

2 stops24h 35mUnited Airlines

Thu 9/251:55 amDXB - ONT

2 stops26h 22mUnited Airlines

Deal found 5/14₱37,367

Mon 11/31:00 pmONT - DXB

2 stops21h 55mMultiple Airlines

Wed 11/129:20 amDXB - ONT

2 stops25h 15mMultiple Airlines

Deal found 5/13₱42,498

Sun 6/811:49 amONT - DXB

2 stops24h 11mDelta

Wed 6/181:00 amDXB - ONT

2 stops26h 28mDelta

Deal found 5/15₱43,334

Wed 8/136:00 amONT - HAN

2 stops25h 35mDelta

Thu 10/1612:00 pmHAN - ONT

2 stops25h 46mDelta

Deal found 5/15₱44,561

Thu 9/46:00 amONT - HAN

2 stops26h 15mUnited Airlines

Sat 9/2011:35 pmHAN - ONT

2 stops32h 02mUnited Airlines

Deal found 5/15₱48,354

Mon 8/111:19 pmONT - SGN

3 stops66h 36mUnited Airlines

Sat 9/611:15 pmSGN - ONT

2 stops56h 22mUnited Airlines

Deal found 5/15₱48,688

Wed 10/1512:10 amONT - SGN

1 stop26h 10mChina Airlines

Thu 10/3011:00 amSGN - ONT

1 stop20h 50mChina Airlines

Deal found 5/15₱49,804

Thu 7/36:25 amONT - SIN

2 stops31h 35mKorean Air

Thu 7/107:30 amSIN - ONT

2 stops24h 36mKorean Air

Deal found 5/15₱50,975

Thu 7/311:19 pmONT - SIN

2 stops50h 21mUnited Airlines

Thu 10/168:45 amSIN - ONT

1 stop23h 47mUnited Airlines

Deal found 5/14₱51,365

Mon 8/1112:45 amONT - HAN

1 stop19h 50mChina Airlines

Mon 10/135:50 pmHAN - ONT

1 stop38h 10mChina Airlines

Deal found 5/15₱51,588

Tue 9/307:22 pmONT - SGN

2 stops24h 33mMultiple Airlines

Tue 12/23:55 pmSGN - ONT

2 stops21h 42mMultiple Airlines

Deal found 5/15₱54,377

Sat 8/307:00 amONT - SIN

2 stops25h 40mDelta

Fri 9/57:30 amSIN - ONT

2 stops30h 11mDelta

Deal found 5/14₱56,608

Find flights from Ontario within your budget

Fly to

Route

Depart

Return

Price

OntarioAngeles City

ONT - CRK

ONTCRK

Ontario

Wed 8/13

11:45 pm-6:55 pm

1 stop28h 10m

Angeles City Clark Intl

Sun 8/24

7:55 pm-5:40 pm

1 stop36h 45m

₱41,605

OntarioCebu City

ONT - CEB

ONTCEB

Ontario

Tue 11/11

7:00 am-10:25 pm

2 stops23h 25m

Cebu City Mactan Intl

Mon 12/1

12:10 am-5:17 pm

2 stops33h 07m

₱43,334

OntarioCebu City

ONT - CEB

ONTCEB

Ontario

Wed 8/6

11:45 pm-7:05 pm

1 stop28h 20m

Cebu City Mactan Intl

Sun 8/24

8:05 pm-5:40 pm

1 stop36h 35m

₱43,613

OntarioManila

ONT - MNL

ONTMNL

Ontario

Sat 11/1

7:00 am-11:00 am

2 stops37h 00m

Manila Ninoy Aquino Intl

Wed 11/19

11:20 pm-5:17 pm

2 stops33h 57m

₱43,948

OntarioManila

ONT - MNL

ONTMNL

Ontario

Mon 9/22

12:10 am-9:35 am

1 stop18h 25m

Manila Ninoy Aquino Intl

Tue 10/7

4:00 am-6:00 pm

1 stop29h 00m

₱44,171

OntarioCebu City

ONT - CEB

ONTCEB

Ontario

Tue 8/26

12:45 am-11:05 am

1 stop19h 20m

Cebu City Mactan Intl

Thu 9/25

12:05 pm-6:00 pm

1 stop20h 55m

₱44,338

OntarioManila

ONT - MNL

ONTMNL

Ontario

Sun 8/10

6:39 pm-5:55 am

1 stop20h 16m

Manila Ninoy Aquino Intl

Wed 9/10

8:40 am-5:37 pm

1 stop23h 57m

₱47,350

OntarioManila

ONT - MNL

ONTMNL

Ontario

Wed 10/15

7:00 am-10:05 pm

2 stops24h 05m

Manila Ninoy Aquino Intl

Thu 11/6

12:30 pm-5:17 pm

2 stops20h 47m

₱48,855

OntarioCebu City

ONT - CEB

ONTCEB

Ontario

Tue 9/2

12:45 am-11:05 am

1 stop19h 20m

Cebu City Mactan Intl

Fri 10/3

8:05 pm-5:05 pm

1 stop36h 00m

₱49,079

OntarioCebu City

ONT - CEB

ONTCEB

Ontario

Wed 8/27

6:00 am-10:05 pm

2 stops25h 05m

Cebu City Mactan Intl

Thu 9/25

9:15 am-5:32 pm

2 stops23h 17m

₱54,600

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/13

Showing 1-10 of 31 results

Best time to book a flight from Ontario

Have a flexible travel schedule? Discover the best time to fly from Ontario with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Ontario

Get recent, data-driven insights about flights from Ontario including ideal travel times, pricing trends, and more.

When is the best time to book a flight from Ontario?

The best time to book flights from Ontario is 34 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Ontario?

Currently, August is the cheapest month in which you can book a flight from Ontario (average of ₱37,088). Flying from Ontario in June will prove the most costly (average of ₱61,125). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.

Which airlines fly from Ontario?

Only one airline operates round-trip flights from Ontario: China Airlines. This airline flies to the following popular destinations: Manila.

What are popular destinations to fly to from Ontario?

If you’re flying from Ontario, these routes are more frequently taken by airlines Dallas (124 flights per day), Seattle (101 flights per day) and Phoenix (73 flights per day).

Las Vegas Harry Reid Intl

From ₱97

What is the cheapest place to fly to from Ontario?

The cheapest city to fly to from Ontario is Las Vegas Harry Reid Intl, with prices starting at ₱5,409. Explore other affordable destinations below.

Las Vegas Harry Reid Intl

Airline reviews for flights from Ontario

EVA Air

8.4

Very good

1,192 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop

EVA Air

8.4

Very good

1,192 reviews

EVA Air

8.4

Very good

1,192 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop

Korean Air

8.4

Very good

1,073 reviews

EVA Air

8.4

Very good

1,192 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop

Japan Airlines

8.3

Very good

1,473 reviews

EVA Air

8.4

Very good

1,192 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop

China Airlines

8.3

Very good

732 reviews

EVA Air

8.4

Very good

1,192 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop

United Airlines

7.4

Good

8,731 reviews

EVA Air

8.4

Very good

1,192 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop

Browse thousands of different options on Cheapflights for your next trip

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Related info for your journey

What are the most popular destinations to fly to from Ontario?
For the current month, the most popular flights from Ontario are Dallas/Fort Worth Airport, Denver, Guadalajara. Denver, Dallas/Fort Worth Airport, Guadalajara are the most popular locations from Ontario year round.
What is the cheapest flight from Ontario to anywhere?
Users have flown out of Ontario for as low as ₱5,409 to Las Vegas (prices may vary depending on the airline and departure time). On average, users have booked flights for ₱25,957 to fly from Ontario.
What are the cheapest airlines flying from Ontario to anywhere?
According to our data, users have found Frontier, United Airlines, and American Airlines to have the cheapest round-trip prices from Ontario. Some of the destinations and prices are as follows: Frontier flights from Ontario to San Francisco (₱2,666). United Airlines flights from Ontario to San Francisco (₱7,081). American Airlines flights from Ontario to Lexington Blue Grass (₱16,661).
What is the cheapest premium economy flight from Ontario?
If you're looking for an elevated level of comfort for your next adventure, premium economy flights from Ontario may suit your needs. The cheapest premium economy flights from Ontario are:
Fly from Ontario to Taipei City Taiwan Taoyuan Intl Airport starting at ₱148,229
What is the cheapest month to fly from Ontario?
August is currently the cheapest month to fly from Ontario. At this moment in time June is the most expensive month. These prices are determined by multiple factors and booking in advance can help keep costs down if your schedule is not as flexible.
Where are the cheapest places to fly to from Ontario?
Check out the cheapest flights from Ontario to embark to:
Fly from Ontario to Manila from ₱39,821
Fly from Ontario to Cebu City from ₱43,334
How does Cheapflights help users find flights from Ontario?
Cheapflights makes it easy to find flights from Ontario by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.
Why should you use Cheapflights to find cheap flight tickets from Ontario?
Cheapflights helps you find that perfect flight from Ontario by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!
Can Cheapflights find flights from Ontario with no change fees?
Users can book flights with no change fees policies with our dedicated filters. Book flights from Ontario flexibly with Cheapflights today.
Can Cheapflights notify me if prices for flights from Ontario become cheaper?
Yes! Start tracking prices for flights from Ontario today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive the alerts.

See more FAQs

Fly with Cheapflights

How does Cheapflights help users find flights from Ontario?

Cheapflights makes it easy to find flights from Ontario by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Ontario?

Cheapflights helps you find that perfect flight from Ontario by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Ontario with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Ontario flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Ontario become cheaper?

Yes! Start tracking prices for flights from Ontario today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive the alerts.

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₱2,900+ Cheap flights from Ontario

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/4. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.

What to know about flights from Ontario

Cheapest one-way flight

Cheapest round-trip flight

Cheapest airline

Most popular destination

Good round-trip deal

Find flights from Ontario

Cheapest flights from OntarioExplore the most affordable flight options available from Ontario. Find the lowest fares based on data from user searches, with prices last updated on May 15, 2025.

Explore the most affordable flight options available from Ontario. Find the lowest fares based on data from user searches, with prices last updated on May 15, 2025.

Find flights from Ontario within your budget

Best time to book a flight from Ontario

Have a flexible travel schedule? Discover the best time to fly from Ontario with our price prediction graph.

Travel insights for flights from Ontario

Get recent, data-driven insights about flights from Ontario including ideal travel times, pricing trends, and more.

When is the best time to book a flight from Ontario?

Use this chart to determine the optimal time to book a round-trip flight from Ontario to Manila. Price data was last updated on May 9, 2025.

What is the cheapest month to book a flight from Ontario?

Which airlines fly from Ontario?

What are popular destinations to fly to from Ontario?

What is the cheapest place to fly to from Ontario?

Airline reviews for flights from Ontario

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Fly your favorite airline from Ontario

Browse through various options for flying your favorite airline from Ontario. Flight routes are based on user searches made on Cheapflights and were last updated on May 15, 2025.

Related info for your journey

What are the most popular destinations to fly to from Ontario?

What is the cheapest flight from Ontario to anywhere?

What are the cheapest airlines flying from Ontario to anywhere?

What is the cheapest premium economy flight from Ontario?

What is the cheapest month to fly from Ontario?

Where are the cheapest places to fly to from Ontario?

How does Cheapflights help users find flights from Ontario?

Why should you use Cheapflights to find cheap flight tickets from Ontario?

Can Cheapflights find flights from Ontario with no change fees?

Can Cheapflights notify me if prices for flights from Ontario become cheaper?

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Ontario?

Why should you use Cheapflights to find cheap flight tickets from Ontario?

Can Cheapflights find flights from Ontario with no change fees?

Can Cheapflights notify me if prices for flights from Ontario become cheaper?

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Book with Flexibility

Travel Smart

Cheapest flights from Ontario
Explore the most affordable flight options available from Ontario. Find the lowest fares based on data from user searches, with prices last updated on May 15, 2025.