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₱5,469+ 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 8/4. 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.
ONT — MNL
Jul 5 — Jul 121
1 adult

What to know about flights from Ontario

Discover essential information about flights departing from Ontario, including flight schedules, destinations, airlines operating at the Ontario airport, and any specific guidelines or requirements for travelers. Please note that the information is based on the most recent updates available. Data last updated June 30, 2025.

Cheapest one-way flight

₱1,840

Cheapest round-trip flight

₱3,382

Cheapest airline

Alaska Airlines

Most popular destination

Incheon Intl (ICN)

Good round-trip deal

₱9,674 or less

Good one-way deal

₱5,644 or less
The cheapest one-way flight from Ontario is currently to Las Vegas Harry Reid Intl.
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The cheapest round-trip flight from Ontario is currently to Las Vegas Harry Reid Intl.
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On average, Alaska Airlines currently has the cheapest one-way flight from Ontario (avg. price of ₱6,656).
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Incheon Intl (ICN) is currently the most popular flight destination from Ontario (average round-trip price of ₱27,880).
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Price to beat on a round-trip flight from Ontario.
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Price to beat on a one-way flight from Ontario.
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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 June 30, 2025.

Thu 8/2112:45 amONT - CEB
1 stop19h 20mChina Airlines
Sun 8/3112:05 pmCEB - ONT
1 stop21h 35mChina Airlines
Deal found 6/28₱40,935
Mon 10/276:45 amONT - MNL
2 stops24h 00mKorean Air
Sat 11/812:55 amMNL - ONT
2 stops32h 22mKorean Air
Deal found 6/30₱41,386
Wed 9/1012:45 amONT - MNL
1 stop24h 05mChina Airlines
Thu 10/94:50 pmMNL - ONT
1 stop16h 10mChina Airlines
Deal found 6/30₱41,555
Fri 8/2911:45 pmONT - CRK
1 stop18h 15mSTARLUX Airlines
Fri 9/127:55 pmCRK - ONT
1 stop36h 10mSTARLUX Airlines
Deal found 6/27₱42,457
Fri 8/2912:45 amONT - CEB
1 stop19h 20mMultiple Airlines
Fri 9/58:05 pmCEB - ONT
1 stop36h 00mMultiple Airlines
Deal found 6/28₱43,810
Wed 8/276:50 pmONT - MNL
1 stop20h 05mUnited Airlines
Thu 10/309:55 amMNL - ONT
1 stop17h 42mUnited Airlines
Deal found 6/30₱43,867
Wed 8/611:45 pmONT - CEB
1 stop28h 20mSTARLUX Airlines
Sun 8/248:05 pmCEB - ONT
1 stop36h 35mSTARLUX Airlines
Deal found 6/27₱44,036
Sun 11/96:43 amONT - CEB
2 stops23h 42mKorean Air
Mon 12/112:10 amCEB - ONT
2 stops33h 07mKorean Air
Deal found 6/29₱45,220
Wed 9/35:10 amONT - CEB
2 stops25h 55mUnited Airlines
Wed 9/109:15 amCEB - ONT
2 stops23h 22mUnited Airlines
Deal found 6/29₱45,840
Fri 8/296:00 amONT - CRK
2 stops27h 50mMultiple Airlines
Thu 9/112:00 amCRK - ONT
2 stops35h 42mMultiple Airlines
Deal found 6/29₱47,757
Sun 10/266:11 pmONT - CRK
2 stops25h 49mEVA Air
Sat 11/812:05 pmCRK - ONT
2 stops38h 39mEVA Air
Deal found 6/28₱58,752

Find flights from Ontario within your budget

Find flights departing from Ontario that match your specified budget. Filter results by price range, allowing you to narrow down options and find flights that fit within your financial constraints. Please note that the search results are based on data from user searches, with fares last updated on June 30, 2025. In the last 7 days, Cheapflights users made a total of 411,093 searches

Fly to

Manila

Route

Depart

Return

Price

OntarioCebu City

ONT - CEB

ONTCEB

Ontario

Thu 8/21

12:45 am-11:05 am

1 stop19h 20m

Cebu City Mactan Intl

Sun 8/31

12:05 pm-6:40 pm

1 stop21h 35m

₱40,935

OntarioManila

ONT - MNL

ONTMNL

Ontario

Mon 10/27

6:45 am-9:45 pm

2 stops24h 00m

Manila Ninoy Aquino Intl

Sat 11/8

12:55 am-5:17 pm

2 stops32h 22m

₱41,386

OntarioManila

ONT - MNL

ONTMNL

Ontario

Wed 9/10

12:45 am-3:50 pm

1 stop24h 05m

Manila Ninoy Aquino Intl

Thu 10/9

4:50 pm-6:00 pm

1 stop16h 10m

₱41,555

OntarioAngeles City

ONT - CRK

ONTCRK

Ontario

Fri 8/29

11:45 pm-9:00 am

1 stop18h 15m

Angeles City Clark Intl

Fri 9/12

7:55 pm-5:05 pm

1 stop36h 10m

₱42,457

OntarioCebu City

ONT - CEB

ONTCEB

Ontario

Fri 8/29

12:45 am-11:05 am

1 stop19h 20m

Cebu City Mactan Intl

Fri 9/5

8:05 pm-5:05 pm

1 stop36h 00m

₱43,810

OntarioManila

ONT - MNL

ONTMNL

Ontario

Wed 8/27

6:50 pm-5:55 am

1 stop20h 05m

Manila Ninoy Aquino Intl

Thu 10/30

9:55 am-12:37 pm

1 stop17h 42m

₱43,867

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

₱44,036

OntarioCebu City

ONT - CEB

ONTCEB

Ontario

Sun 11/9

6:43 am-10:25 pm

2 stops23h 42m

Cebu City Mactan Intl

Tue 12/2

12:10 am-5:17 pm

2 stops33h 07m

₱45,220

OntarioCebu City

ONT - CEB

ONTCEB

Ontario

Wed 9/3

5:10 am-10:05 pm

2 stops25h 55m

Cebu City Mactan Intl

Wed 9/10

9:15 am-5:37 pm

2 stops23h 22m

₱45,840

OntarioAngeles City

ONT - CRK

ONTCRK

Ontario

Fri 8/29

6:00 am-12:50 am

2 stops27h 50m

Angeles City Clark Intl

Thu 9/11

2:00 am-10:42 pm

2 stops35h 42m

₱47,757

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/28

Showing 1-10 of 28 results
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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?

Use this chart to determine the optimal time to book a round-trip flight from Ontario to Manila. Price data was last updated on June 27, 2025.

The best time to book flights from Ontario is 75 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 ₱36,311). Flying from Ontario in June will prove the most costly (average of ₱57,286). 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.

China Airlines
China Airlines
From ₱770
Frontier
Frontier
From ₱48
American Airlines
American Airlines
From ₱299
United Airlines
United Airlines
From ₱127

What are popular destinations to fly to from Ontario?

If you’re flying from Ontario, these routes are more frequently taken by airlines Seattle (152 flights per day), Dallas (134 flights per day) and Atlanta (86 flights per day).

Denver Intl
Denver Intl
From ₱99
Seattle/Tacoma Intl
Seattle/Tacoma Intl
From ₱449
Dallas/Fort Worth
Dallas/Fort Worth
From ₱339

What is the cheapest place to fly to from Ontario?

The cheapest city to fly to from Ontario is Denver Intl, with prices starting at ₱5,578. Explore other affordable destinations below.

Denver Intl
Denver Intl
From ₱99
Las Vegas Harry Reid Intl
Las Vegas Harry Reid Intl
From ₱172
Dallas/Fort Worth
Dallas/Fort Worth
From ₱339
Seattle/Tacoma Intl
Seattle/Tacoma Intl
From ₱449

Airline reviews for flights from Ontario

Read reviews and ratings of airlines operating flights from Ontario. Gain insights into the quality of service, in-flight amenities, customer experiences, and overall satisfaction to choose the best airline for your Ontario travel. Please note that the reviews are sourced from user searches and were last updated on June 30, 2025. In the last 7 days, Cheapflights users made a total of 411,093 searches.
Get a feel of what it's like to fly with Korean Air, Japan Airlines, and China Airlines from Ontario by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,101 reviews
Check prices

Food

8.1

Entertainment

8.2

Overall

8.4

Comfort

8.3

Crew

8.7

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Korean Air
8.4
Very good
1,101 reviews
Korean Air
8.4
Very good
1,101 reviews
Check prices

Food

8.1

Entertainment

8.2

Overall

8.4

Comfort

8.3

Crew

8.7

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Japan Airlines
8.3
Very good
1,504 reviews
Korean Air
8.4
Very good
1,101 reviews
Check prices

Food

8.1

Entertainment

8.2

Overall

8.4

Comfort

8.3

Crew

8.7

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
China Airlines
8.3
Very good
745 reviews
Korean Air
8.4
Very good
1,101 reviews
Check prices

Food

8.1

Entertainment

8.2

Overall

8.4

Comfort

8.3

Crew

8.7

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
United Airlines
7.4
Good
8,852 reviews
Korean Air
8.4
Very good
1,101 reviews
Check prices

Food

8.1

Entertainment

8.2

Overall

8.4

Comfort

8.3

Crew

8.7

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

Browse thousands of different options on Cheapflights for your next trip

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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 June 30, 2025.
China Airlines flights from Ontario to Manila

Related info for your journey

Access useful and relevant information related to your journey from Ontario. This can include details such as airport transportation, visa requirements, travel insurance, luggage regulations, and any other information that can ensure a smooth and hassle-free travel experience. Please note that the information is based on general guidance and may need to be verified with official sources. Data last updated June 30, 2025.

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

    For the current month, the most popular flights from Ontario are Denver, Dallas/Fort Worth Airport, Guadalajara. Dallas/Fort Worth Airport, Denver, 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 ₱5,578 to Denver (prices may vary depending on the airline and departure time). On average, users have booked flights for ₱27,020 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 (₱2,696). United Airlines flights from Ontario to San Francisco (₱7,159). American Airlines flights from Ontario to Lexington Blue Grass (₱16,844).

  • 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 ₱149,858

  • 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 ₱37,101

  • 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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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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