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₱5,367+ 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 9/3. 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
Aug 23 — Aug 301
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 August 18, 2025.

Cheapest one-way flight

₱20,196

Cheapest round-trip flight

₱2,740

Cheapest airline

Frontier

Most popular destination

Incheon Intl (ICN)

Good round-trip deal

₱3,755 or less
The cheapest one-way flight from Ontario is currently to Incheon 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, Frontier currently has the cheapest one-way flight from Ontario (avg. price of ₱3,963).
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Incheon Intl (ICN) is currently the most popular flight destination from Ontario (average round-trip price of ₱21,417).
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Price to beat on a round-trip 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 August 18, 2025.

Sun 8/316:00 amONT - MNL
2 stops26h 59mKorean Air
Sun 9/1411:30 pmMNL - ONT
2 stops32h 30mKorean Air
Deal found 8/16₱38,013
Sun 10/2611:50 pmONT - MNL
1 stop25h 05mChina Airlines
Sun 11/234:55 pmMNL - ONT
1 stop15h 55mChina Airlines
Deal found 8/17₱38,178
Fri 10/1712:10 amONT - MNL
1 stop18h 25mChina Airlines
Fri 11/710:55 amMNL - ONT
1 stop21h 55mChina Airlines
Deal found 8/17₱38,234
Sat 11/2210:50 pmONT - MNL
1 stop19h 05mChina Airlines
Sun 12/710:55 amMNL - ONT
1 stop21h 55mChina Airlines
Deal found 8/17₱38,289
Wed 8/2712:45 amONT - MNL
1 stop17h 50mChina Airlines
Sat 11/154:55 pmMNL - ONT
1 stop15h 55mChina Airlines
Deal found 8/17₱38,344
Mon 11/2410:50 pmONT - MNL
1 stop19h 05mChina Airlines
Thu 1/153:35 amMNL - ONT
1 stop29h 15mChina Airlines
Deal found 8/16₱38,400
Wed 8/2712:45 amONT - MNL
1 stop24h 05mChina Airlines
Wed 9/310:35 amMNL - ONT
1 stop23h 05mChina Airlines
Deal found 8/16₱38,510
Thu 9/412:45 amONT - MNL
1 stop34h 25mChina Airlines
Fri 9/194:00 amMNL - ONT
1 stop29h 00mChina Airlines
Deal found 8/15₱38,566
Wed 8/2712:45 amONT - MNL
1 stop24h 05mChina Airlines
Sun 8/314:50 pmMNL - ONT
1 stop16h 50mChina Airlines
Deal found 8/15₱38,621
Sun 8/3112:45 amONT - MNL
1 stop17h 50mChina Airlines
Tue 9/24:50 pmMNL - ONT
1 stop16h 50mChina Airlines
Deal found 8/15₱38,676
Fri 9/1212:45 amONT - CEB
1 stop19h 20mChina Airlines
Thu 10/912:05 pmCEB - ONT
1 stop20h 55mChina Airlines
Deal found 8/16₱38,732
Sat 11/2210:50 pmONT - MNL
1 stop19h 05mChina Airlines
Mon 12/14:55 pmMNL - ONT
1 stop15h 55mChina Airlines
Deal found 8/16₱38,787

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 August 18, 2025. In the last 7 days, Cheapflights users made a total of 411,093 searches

Fly to

Manila

Route

Depart

Return

Price

OntarioManila

ONT - MNL

ONTMNL

Ontario

Mon 10/27

11:50 pm-9:55 am

1 stop19h 05m

Manila Ninoy Aquino Intl

Mon 11/10

4:55 pm-4:50 pm

1 stop15h 55m

₱38,234

OntarioManila

ONT - MNL

ONTMNL

Ontario

Fri 11/7

10:50 pm-3:55 pm

1 stop25h 05m

Manila Ninoy Aquino Intl

Mon 12/8

4:55 pm-4:50 pm

1 stop15h 55m

₱38,289

OntarioManila

ONT - MNL

ONTMNL

Ontario

Sat 11/8

10:50 pm-3:55 pm

1 stop25h 05m

Manila Ninoy Aquino Intl

Sun 11/16

4:55 pm-4:50 pm

1 stop15h 55m

₱38,289

OntarioManila

ONT - MNL

ONTMNL

Ontario

Fri 11/7

10:50 pm-3:55 pm

1 stop25h 05m

Manila Ninoy Aquino Intl

Sat 11/15

3:35 am-4:50 pm

1 stop29h 15m

₱38,289

OntarioManila

ONT - MNL

ONTMNL

Ontario

Sun 8/31

12:45 am-3:50 pm

1 stop24h 05m

Manila Ninoy Aquino Intl

Mon 9/8

10:35 am-6:40 pm

1 stop23h 05m

₱38,289

OntarioManila

ONT - MNL

ONTMNL

Ontario

Tue 9/2

12:45 am-9:35 am

1 stop17h 50m

Manila Ninoy Aquino Intl

Fri 9/12

4:50 pm-6:40 pm

1 stop16h 50m

₱38,289

OntarioManila

ONT - MNL

ONTMNL

Ontario

Thu 10/30

11:50 pm-9:55 am

1 stop19h 05m

Manila Ninoy Aquino Intl

Sun 11/16

4:55 pm-4:50 pm

1 stop15h 55m

₱38,289

OntarioManila

ONT - MNL

ONTMNL

Ontario

Fri 10/31

11:50 pm-9:55 am

1 stop19h 05m

Manila Ninoy Aquino Intl

Sun 11/16

10:55 am-4:50 pm

1 stop21h 55m

₱38,289

OntarioManila

ONT - MNL

ONTMNL

Ontario

Sun 9/21

12:10 am-9:35 am

1 stop18h 25m

Manila Ninoy Aquino Intl

Thu 10/2

4:50 pm-6:00 pm

1 stop16h 10m

₱38,289

OntarioManila

ONT - MNL

ONTMNL

Ontario

Sat 8/30

12:45 am-2:10 am

1 stop34h 25m

Manila Ninoy Aquino Intl

Sun 9/14

10:35 am-6:40 pm

1 stop23h 05m

₱38,289

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/16

Showing 1-10 of 60 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 August 8, 2025.

The best time to book flights from Ontario is 68 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 ₱34,637). Flying from Ontario in June will prove the most costly (average of ₱54,280). 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 (138 flights per day), Dallas (131 flights per day) and Atlanta (90 flights per day).

Las Vegas Harry Reid Intl
Las Vegas Harry Reid Intl
From ₱68

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 ₱3,755. Explore other affordable destinations below.

Las Vegas Harry Reid Intl
Las Vegas Harry Reid Intl
From ₱68

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 August 18, 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 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.
China Airlines
8.3
Very good
764 reviews
Check prices

Overall

8.3

Boarding

8.3

Entertainment

8.0

Food

7.8

Comfort

8.0

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2025

SFO - TPE

Bad News - The flight was delayed and it was due to ground crew issues but the staff were moving things along. The seat size was cramp and i am a lean person. The attendant kept asking me in Chinese when i already stated i don’t speak the language. The food was bad. The taste, aroma, consistent of mush. Even a cafeteria lady can cook better food. Kudos - the pilot made up for lost time to the best of his ability. He made sure that the flight was smooth even though there was occasional turbulence. The landing was great.
China Airlines
8.3
Very good
764 reviews
China Airlines
8.3
Very good
764 reviews
Check prices

Overall

8.3

Boarding

8.3

Entertainment

8.0

Food

7.8

Comfort

8.0

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2025

SFO - TPE

Bad News - The flight was delayed and it was due to ground crew issues but the staff were moving things along. The seat size was cramp and i am a lean person. The attendant kept asking me in Chinese when i already stated i don’t speak the language. The food was bad. The taste, aroma, consistent of mush. Even a cafeteria lady can cook better food. Kudos - the pilot made up for lost time to the best of his ability. He made sure that the flight was smooth even though there was occasional turbulence. The landing was great.

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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 August 18, 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 August 18, 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, Honolulu. 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 ₱3,755 to Las Vegas (prices may vary depending on the airline and departure time). On average, users have booked flights for ₱31,402 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 Seattle/Tacoma Intl (₱2,645). United Airlines flights from Ontario to San Francisco (₱7,025). American Airlines flights from Ontario to Lexington Blue Grass (₱16,530).

  • 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 Denver starting at ₱46,498
    Fly from Ontario to Taipei City Taiwan Taoyuan Intl Airport starting at ₱147,060

  • 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 ₱36,906

  • 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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Fly with Cheapflights

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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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