What is the cheapest airline that flies from Ontario to Asia?

Delta, Korean Air, and Alaska Airlines are the most popular carriers operating from Ontario to Asia

How many flights depart from Ontario to Asia on average per week?

11 flights are operational weekly from Ontario to Asia as of December 2025. The most popular departure day for this route is Mon, with 18% of flights per week taking off on this day.

What airlines fly to Asia?

Philippine Airlines, ANA and Singapore Airlines are the top three most popular airlines that fly to Asia from Ontario according to our data. Philippine Airlines is the first choice among our users, with 33% of people opting to fly with this airline when traveling to Asia. Keep in mind that there are 40 different airlines that fly to Asia on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Ontario Airport to Asia?

Prices for flights from Ontario Airport to Asia are refreshed on a daily basis.

How many operators does momondo search for flights from Ontario Airport to Asia?

As of December 2025, there are 10 operators available to choose from for flights from Ontario Airport to Asia.

How old do you have to be to fly from Ontario Airport to Asia?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Asia.

What documentation or ID do you need to fly to Asia?

The required travel and health documents for your Asia trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Asia. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$329 Cheap Flights from Ontario to Asia in 2025/26

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Cheap round-trip flights

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6:00 am - 4:00 pm

ONT

NRT

17h 00m1 stop

6:30 pm - 3:08 pm

NRT

ONT

13h 38m1 stop

$627Alaska Airlines

Sun, Jan 18 - Fri, Feb 6

6:00 am - 4:00 pm

ONT

NRT

17h 00m1 stop

6:30 pm - 3:08 pm

NRT

ONT

13h 38m1 stop

$636Alaska Airlines

Mon, Jan 5 - Wed, Jan 21

7:30 am - 11:10 pm

ONT

HKG

23h 40m2 stops

12:55 am - 10:44 pm

HKG

ONT

37h 49m2 stops

$638Delta

Mon, Jan 26 - Mon, Feb 2

11:10 pm - 4:15 am

ONT

TPE

14h 05mnonstop

8:05 pm - 5:05 pm

TPE

ONT

12h 00mnonstop

$648STARLUX Airlines

Wed, Apr 15 - Wed, Apr 29

10:50 pm - 5:30 am

ONT

TPE

14h 40mnonstop

9:25 pm - 4:50 pm

TPE

ONT

11h 25mnonstop

$649China Airlines

Thu, Jan 22 - Mon, Jan 26

10:50 pm - 5:30 am

ONT

TPE

14h 40mnonstop

9:25 pm - 4:50 pm

TPE

ONT

11h 25mnonstop

$655China Airlines

Tue, Jan 20 - Sun, Feb 8

9:45 pm - 4:30 am

ONT

TPE

14h 45mnonstop

8:30 pm - 3:50 pm

TPE

ONT

11h 20mnonstop

$656STARLUX Airlines

Wed, Jan 21 - Mon, Feb 2

7:30 am - 9:05 pm

ONT

TPE

21h 35m1 stop

9:55 am - 11:19 am

TPE

ONT

16h 24m1 stop

$667Delta

Wed, Mar 4 - Mon, Mar 16

6:53 pm - 9:55 pm

ONT

SGN

37h 02m2 stops

11:05 pm - 11:06 pm

SGN

ONT

38h 01m2 stops

$720United Airlines

Tue, Apr 14 - Mon, Oct 26

6:00 am - 5:10 am

ONT

BKK

32h 10m2 stops

7:00 am - 11:06 pm

BKK

ONT

30h 06m2 stops

$726United Airlines

Sun, Jan 25 - Sat, May 23

United Airlines flights from Ontario to Asia

Our best United Airlines deals on Ontario to Asia flight tickets

United Airlines

Jan 20

ONT6:00 amOntario

19h 45m

2 stops

HND6:45 pmTokyo Haneda

Jan 27

HND9:55 pmTokyo Haneda

41h 58m

2 stops

ONT10:53 pmOntario

$712

Find similar

United Airlines

Apr 14

ONT6:53 pmOntario

37h 02m

2 stops

SGN9:55 pmHo Chi Minh City

Oct 26

SGN11:05 pmHo Chi Minh City

38h 01m

2 stops

ONT11:06 pmOntario

$720

Find similar

United Airlines

Mar 1

ONT6:00 amOntario

27h 15m

2 stops

SGN12:15 amHo Chi Minh City

May 3

SGN11:15 pmHo Chi Minh City

37h 37m

2 stops

ONT10:52 pmOntario

$723

Find similar

Qatar Airways flights from Ontario to Asia

Our best Qatar Airways deals on Ontario to Asia flight tickets

Qatar Airways

Feb 11

ONT11:53 amOntario

37h 22m

2 stops

DEL2:45 pmNew Delhi Indira Gandhi Intl

Feb 20

DEL4:10 pmNew Delhi Indira Gandhi Intl

44h 52m

2 stops

ONT11:32 pmOntario

$1,143

Find similar

Qatar Airways

Dec 9

ONT6:00 amOntario

42h 15m

2 stops

ICN5:15 pmIncheon Intl

Dec 16

ICN12:20 amIncheon Intl

35h 13m

2 stops

ONT6:33 pmOntario

$1,903

Find similar

Fly from

Fly to

Route

Depart

Return

Price

OntarioTokyo

ONT - NRT

ONTNRT

Ontario

Sun 1/18

6:00 am-4:00 pm

1 stop17h 00m

Tokyo Narita

Fri 2/6

6:30 pm-3:08 pm

1 stop13h 38m

$627

OntarioTokyo

ONT - NRT

ONTNRT

Ontario

Mon 1/5

6:00 am-4:00 pm

1 stop17h 00m

Tokyo Narita

Wed 1/21

6:30 pm-3:08 pm

1 stop13h 38m

$636

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

Mon 1/26

7:30 am-11:10 pm

2 stops23h 40m

Hong Kong Intl

Mon 2/2

12:55 am-10:44 pm

2 stops37h 49m

$638

OntarioTaipei City

ONT - TPE

ONTTPE

Ontario

Wed 4/15

11:10 pm-4:15 am

Nonstop14h 05m

Taipei City Taiwan Taoyuan Intl

Wed 4/29

8:05 pm-5:05 pm

Nonstop12h 00m

$648

OntarioTaipei City

ONT - TPE

ONTTPE

Ontario

Thu 1/22

10:50 pm-5:30 am

Nonstop14h 40m

Taipei City Taiwan Taoyuan Intl

Mon 1/26

9:25 pm-4:50 pm

Nonstop11h 25m

$649

OntarioTaipei City

ONT - TPE

ONTTPE

Ontario

Tue 1/20

10:50 pm-5:30 am

Nonstop14h 40m

Taipei City Taiwan Taoyuan Intl

Sun 2/8

9:25 pm-4:50 pm

Nonstop11h 25m

$655

OntarioTaipei City

ONT - TPE

ONTTPE

Ontario

Wed 1/21

9:45 pm-4:30 am

Nonstop14h 45m

Taipei City Taiwan Taoyuan Intl

Mon 2/2

8:30 pm-3:50 pm

Nonstop11h 20m

$656

OntarioTaipei City

ONT - TPE

ONTTPE

Ontario

Wed 3/4

7:30 am-9:05 pm

1 stop21h 35m

Taipei City Taiwan Taoyuan Intl

Mon 3/16

9:55 am-11:19 am

1 stop16h 24m

$667

OntarioHo Chi Minh City

ONT - SGN

ONTSGN

Ontario

Tue 4/14

6:53 pm-9:55 pm

2 stops37h 02m

Ho Chi Minh City

Mon 10/26

11:05 pm-11:06 pm

2 stops38h 01m

$720

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

Sun 1/25

6:00 am-5:10 am

2 stops32h 10m

Bangkok Suvarnabhumi

Sat 5/23

7:00 am-11:06 pm

2 stops30h 06m

$726

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Ontario to Asia

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Asia?

If you’re not able to fly to Asia in October, then September is your next best option. Flight prices from Ontario to Asia during September average around $824.

What is the cheapest day to depart on your flight to Asia?

The cheapest day to depart from Ontario to Asia is on a Wednesday. Travelers who choose to depart for Asia on a Wednesday will often find tickets for as low as $884. The most expensive day to fly to Asia is Friday, with ticket prices averaging around $1,065.

What is the cheapest time of day to depart on your flight to Asia?

Our most recent data shows that the best time of day to fly to Asia is in the morning. Flights from Ontario to Asia during this time can be as low as $911. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $1,279 on average. Flights to Asia from Ontario in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

How far in advance should I book a flight to Asia?

You are more likely to see cheaper flights to Asia from Ontario when booking weeks ahead of your departure date. In general, you can expect to find flights to Asia for around $1,002 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Asia from Ontario for as low as $762 on momondo.

Can stopping save me money on Ontario to Asia flights?

You could potentially save up to 31% on your flight if you consider stops on a Ontario to Asia flight.

Cheap Ontario to Asia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Asia

Best Price Found	$426
Fastest flight time	14h 05m
Direct flights	Every day
Airports in Asia	1 airport

The best one-way flight to Asia from Ontario in the past 72 hours is $426. The best round-trip flight deal from Ontario to Asia found on momondo in the last 72 hours is $679.

The fastest flight from Ontario to Asia takes 14h 05m

Direct flights go from Ontario to Asia every day.

There is 1 airport near Asia: Taipei City Taiwan Taoyuan Intl (TPE)

Search flight deals

When did momondo last update prices for flights from Ontario Airport to Asia?
Prices for flights from Ontario Airport to Asia are refreshed on a daily basis.
How many operators does momondo search for flights from Ontario Airport to Asia?
As of December 2025, there are 10 operators available to choose from for flights from Ontario Airport to Asia.
How old do you have to be to fly from Ontario Airport to Asia?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Asia.
What documentation or ID do you need to fly to Asia?
The required travel and health documents for your Asia trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Asia. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Ontario to Asia

Compare and see reviews for airlines that fly from Ontario to Asia with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $486	Free Cancellation	Rating 7.4 9,076 reviews	Search United Airlines flights
Korean Air	PriceFrom $637	Free Cancellation	Rating 8.4 1,181 reviews	Search Korean Air flights
Asiana Airlines	PriceFrom $647	Free Cancellation	Rating 8.2 490 reviews	Search Asiana Airlines flights
China Airlines	PriceFrom $666	Free Cancellation	Rating 8.2 788 reviews	Search China Airlines flights
Delta	PriceFrom $686	Free Cancellation	Rating 7.9 8,013 reviews	Search Delta flights
American Airlines	PriceFrom $712	Free Cancellation	Rating 7.2 11,042 reviews	Search American Airlines flights
STARLUX Airlines	PriceFrom $731	Free Cancellation	Rating 8.9 243 reviews	Search STARLUX Airlines flights
Philippine Airlines	PriceFrom $754	Free Cancellation	Rating 7.3 940 reviews	Search Philippine Airlines flights
Hawaiian Airlines	PriceFrom $892	Free Cancellation	Rating 7.8 2,818 reviews	Search Hawaiian Airlines flights
Cathay Pacific	PriceFrom $928	Free Cancellation	Rating 7.6 1,088 reviews	Search Cathay Pacific flights

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Asia?

It is quick and easy to find Ontario to Asia flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Asia that suits you.

Can I find flights from Ontario to Asia with flexible booking policies on momondo?

momondo does allow users to show only those flights to Asia from Ontario which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Ontario to Asia?

momondo provides multiple filters to help you find the best flight to Asia from Ontario. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Ontario to Asia right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Ontario to Asia now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Asia and let you know when they change.

An easier way to manage your Asia trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Find better results for your trip to Asia

Popular cities in Asia

Flights to Bangkokfrom $524

Flights to Tokyofrom $342

Flights to Manilafrom $521

Flights to New Delhifrom $552

Flights to Mumbaifrom $512

Flights to Ho Chi Minh Cityfrom $513

Flights to Denpasarfrom $616

Flights to Hyderabadfrom $616

Flights to Singaporefrom $557

Flights to Kuala Lumpurfrom $555

Flights to Phuket Cityfrom $613

Flights to Hong Kongfrom $522

Cheap flights from Ontario to Asia from $329

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Asia departing on 3/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

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Find the cheapest flights from Ontario to Asia

Cheap round-trip flights

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United Airlines flights from Ontario to Asia

Our best United Airlines deals on Ontario to Asia flight tickets

Qatar Airways flights from Ontario to Asia

Our best Qatar Airways deals on Ontario to Asia flight tickets

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Use the filters below to find and compare flights from Ontario to Asia that are best for you.

How to get the cheapest flight ticket from Ontario to Asia

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Asia?

If you’re not able to fly to Asia in October, then September is your next best option. Flight prices from Ontario to Asia during September average around $824.

What is the cheapest day to depart on your flight to Asia?

The cheapest day to depart from Ontario to Asia is on a Wednesday. Travelers who choose to depart for Asia on a Wednesday will often find tickets for as low as $884. The most expensive day to fly to Asia is Friday, with ticket prices averaging around $1,065.

What is the cheapest time of day to depart on your flight to Asia?

How far in advance should I book a flight to Asia?

Can stopping save me money on Ontario to Asia flights?

You could potentially save up to 31% on your flight if you consider stops on a Ontario to Asia flight.

What is the cheapest airline that flies from Ontario to Asia?

Delta, Korean Air, and Alaska Airlines are the most popular carriers operating from Ontario to Asia

What airlines fly to Asia?

How many flights depart from Ontario to Asia on average per week?

11 flights are operational weekly from Ontario to Asia as of December 2025. The most popular departure day for this route is Mon, with 18% of flights per week taking off on this day.

Cheap Ontario to Asia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Asia

Best Price Found

Fastest flight time

Direct flights

Airports in Asia

When did momondo last update prices for flights from Ontario Airport to Asia?

How many operators does momondo search for flights from Ontario Airport to Asia?

How old do you have to be to fly from Ontario Airport to Asia?

What documentation or ID do you need to fly to Asia?

Best airlines flying from Ontario to Asia

Compare and see reviews for airlines that fly from Ontario to Asia with momondo

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Asia?

Can I find flights from Ontario to Asia with flexible booking policies on momondo?

How can momondo help me find flights from Ontario to Asia?

I’m not ready to book a flight from Ontario to Asia right now. Can momondo alert me if prices change?

An easier way to manage your Asia trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Asia

Popular cities in Asia

Popular flights according to clicks in the last 7 days on momondo