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$330+ Cheap flights from Asia to Ontario (ONT)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/7. Fares are subject to change and may not be available on all flights or dates of travel.
ICN — ONT
feb. 4 — feb. 111
mar. 2/4
mar. 2/11
1 adult, Economy
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Cheap flight deals from Asia to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Asia (AS0) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated enero 30, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$681
(United Airlines)

One-way from

$330
(Trip.com)

Popular in

July

Cheapest in

October

Average price

$1,118

Good round-trip deal

$874 or less

Good one-way deal

$619 or less
Provider with most accurate pricing for Manila Ninoy Aquino Intl-Los Angeles flight deals.
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Provider most trusted by Cheapflights users for Manila Ninoy Aquino Intl-Los Angeles flights.
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From Asia to Ontario
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One-way flight from Asia to Ontario
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Highest demand for flights based on searches. 14% potential increase in price ($162 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($22 potential savings vs. average RT price).
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Average for round-trip flights in January 2025
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Price to beat on a round-trip flight from Asia to Ontario.
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Price to beat on a one-way flight from Asia to Ontario.
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Find flight deals from Asia to Ontario

Cheapest flights from Asia to Ontario
Explore the most affordable flight options available from Asia to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on enero 30, 2025.

This United Airlines deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 3/202:45 pmTPE - ONT
2 stops21h 12mUnited Airlines
mar. 3/2510:38 amONT - TPE
1 stop17h 12mUnited Airlines
Deal found 1/30$683
This United Airlines deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 2/56:00 pmICN - ONT
1 stop17h 04mUnited Airlines
mié. 2/126:15 amONT - ICN
1 stop17h 00mUnited Airlines
Deal found 1/29$685
This United Airlines deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 3/54:50 pmNRT - ONT
1 stop20h 50mUnited Airlines
lun. 3/175:05 amONT - NRT
2 stops41h 55mUnited Airlines
Deal found 1/29$766
This United Airlines deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 3/34:25 pmHND - ONT
1 stop19h 06mUnited Airlines
lun. 3/105:05 amONT - HND
2 stops19h 25mUnited Airlines
Deal found 1/28$776
This Gotogate deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 4/164:50 pmMNL - ONT
1 stop16h 10mChina Airlines
jue. 5/812:10 amONT - MNL
1 stop24h 40mChina Airlines
Deal found 1/30$778
This Delta deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 2/114:50 pmHND - ONT
1 stop15h 35mDelta
mar. 2/186:00 amONT - HND
1 stop16h 20mDelta
Deal found 1/29$791
This China Airlines deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 3/185:50 pmBKK - ONT
1 stop38h 00mChina Airlines
lun. 4/712:10 amONT - BKK
1 stop22h 00mChina Airlines
Deal found 1/29$828
This American Airlines deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 1/306:50 pmICN - ONT
2 stops20h 08mAmerican Airlines
dom. 2/211:59 pmONT - ICN
1 stop23h 46mAmerican Airlines
Deal found 1/29$851
This Gotogate deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 4/1212:35 pmICN - ONT
1 stop21h 25mChina Airlines
dom. 4/2012:10 amONT - ICN
1 stop27h 25mChina Airlines
Deal found 1/30$867
This China Airlines deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 3/109:25 pmTPE - ONT
Nonstop11h 25mChina Airlines
jue. 4/1712:10 amONT - TPE
Nonstop14h 05mChina Airlines
Deal found 1/30$872
This United Airlines deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 3/47:10 amBKK - ONT
2 stops22h 19mUnited Airlines
mar. 3/47:40 pmONT - BKK
2 stops37h 25mUnited Airlines
Deal found 1/29$885
This Gotogate deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 9/202:30 pmNRT - ONT
1 stop19h 30mChina Airlines
lun. 9/2212:10 amONT - NRT
1 stop21h 05mChina Airlines
Deal found 1/30$888

Find flights from Asia to Ontario within your budget

Customize your flight search to find flights from Asia to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated enero 30, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

Taipei CityOntario

TPE - ONT

TPEONT

Taipei City Taiwan Taoyuan Intl

lun. 3/3

11:10 am-2:29 pm

1 stop19h 19m

Ontario

lun. 3/17

6:45 pm-4:45 am

1 stop19h 00m

$681

IncheonOntario

ICN - ONT

ICNONT

Incheon Intl

vie. 2/28

12:45 pm-2:29 pm

1 stop18h 44m

Ontario

mar. 3/4

1:44 pm-5:40 am

2 stops22h 56m

$685

TokyoOntario

NRT - ONT

NRTONT

Tokyo Narita

mié. 3/5

4:50 pm-8:40 pm

1 stop20h 50m

Ontario

lun. 3/17

5:05 am-3:00 pm

2 stops41h 55m

$766

TokyoOntario

HND - ONT

HNDONT

Tokyo Haneda

lun. 3/3

4:25 pm-6:31 pm

1 stop19h 06m

Ontario

lun. 3/10

5:05 am-4:30 pm

2 stops19h 25m

$776

ManilaOntario

MNL - ONT

MNLONT

Manila Ninoy Aquino Intl

mié. 4/16

4:50 pm-6:00 pm

1 stop16h 10m

Ontario

jue. 5/8

12:10 am-3:50 pm

1 stop24h 40m

$778

TokyoOntario

HND - ONT

HNDONT

Tokyo Haneda

mar. 2/11

4:50 pm-3:25 pm

1 stop15h 35m

Ontario

mar. 2/18

6:00 am-3:20 pm

1 stop16h 20m

$791

BangkokOntario

BKK - ONT

BKKONT

Bangkok Suvarnabhumi

mar. 3/18

5:50 pm-5:50 pm

1 stop38h 00m

Ontario

lun. 4/7

12:10 am-12:10 pm

1 stop22h 00m

$828

IncheonOntario

ICN - ONT

ICNONT

Incheon Intl

mié. 2/19

6:50 pm-10:04 pm

2 stops20h 14m

Ontario

dom. 2/23

11:59 pm-4:45 pm

1 stop23h 46m

$851

IncheonOntario

ICN - ONT

ICNONT

Incheon Intl

sáb. 4/12

12:35 pm-6:00 pm

1 stop21h 25m

Ontario

dom. 4/20

12:10 am-7:35 pm

1 stop27h 25m

$867

Taipei CityOntario

TPE - ONT

TPEONT

Taipei City Taiwan Taoyuan Intl

lun. 3/10

9:25 pm-5:50 pm

Nonstop11h 25m

Ontario

sáb. 4/12

12:10 am-5:15 am

Nonstop14h 05m

$872

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/28

Showing 1-10 of 60 results
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Best time to book a flight from Asia to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Asia 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 Asia to Ontario

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

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

Currently, August is the cheapest month in which you can book a flight from Asia to Ontario (average of $246). Flying from Asia to Ontario in March is currently the most expensive (average of $310). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from AS to ONT?

Find hourly flight availability from Asia to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated enero 30, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Asia to Ontario as you normally would.

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated enero 30, 2025.
Korean Air
8.5
Very good
1,034 reviews

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Crew

8.7

Overall

8.5

Food

8.1

Reviews

1 / 20

10.0
Excellent

David,Dec 2024

JFK - MCO

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Korean Air
8.5
Very good
1,034 reviews
Korean Air
8.5
Very good
1,034 reviews

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Crew

8.7

Overall

8.5

Food

8.1

Reviews

1 / 20

10.0
Excellent

David,Dec 2024

JFK - MCO

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Japan Airlines
8.3
Very good
1,445 reviews
Korean Air
8.5
Very good
1,034 reviews

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Crew

8.7

Overall

8.5

Food

8.1

Reviews

1 / 20

10.0
Excellent

David,Dec 2024

JFK - MCO

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

China Airlines
8.2
Very good
727 reviews
Korean Air
8.5
Very good
1,034 reviews

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Crew

8.7

Overall

8.5

Food

8.1

Reviews

1 / 20

10.0
Excellent

David,Dec 2024

JFK - MCO

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Delta
8.0
Very good
8,450 reviews
Korean Air
8.5
Very good
1,034 reviews

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Crew

8.7

Overall

8.5

Food

8.1

Reviews

1 / 20

10.0
Excellent

David,Dec 2024

JFK - MCO

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Hawaiian Airlines
7.9
Good
2,320 reviews
Korean Air
8.5
Very good
1,034 reviews

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Crew

8.7

Overall

8.5

Food

8.1

Reviews

1 / 20

10.0
Excellent

David,Dec 2024

JFK - MCO

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Related info for your journey

Find useful and relevant information for your journey from Asia to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Ontario from Asia?

    Located just 3.1 mi from the city center, Ontario (ONT) is the airport most travelers will use when flying to Ontario from Asia.

  • What are the cheapest airlines to fly from Asia to Ontario one-way?

    $426 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on Delta and China Airlines, with prices starting from $463 and $465, respectively.

  • What are the most popular routes from Asia to Ontario?

    When deciding which route to take from Asia to Ontario consider Manila Ninoy Aquino Intl - Ontario, Tokyo Narita - Ontario or Tokyo Haneda - Ontario as they are the most popular.

  • Can I find deals for flights from Asia to Ontario that include hotel bookings?

    Yes. In addition to deals on Asia to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Asia to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Asia to Ontario.

  • Can I find deals for business class flights from Asia to Ontario?

    Yes. Cheapflights offers flight deals from Asia to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

    Currently, August is the cheapest month in which you can book a flight from Asia to Ontario (average of $246). Flying from Asia to Ontario in March is currently the most expensive (average of $310). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Asia to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Asia to Ontario

Discover the top 2 airlines that operate flights from Asia to Ontario. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated enero 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$674Average$784FlexibilityNo cancel feeOn-time69%
China AirlinesCheapest$736Average$979FlexibilityNo cancel feeOn-time70%
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