What airlines fly to Southeast Asia?

Philippine Airlines, China Airlines and Asiana Airlines are the top three most popular airlines that fly to Southeast Asia from Ontario according to our data. Philippine Airlines is the first choice among our users, with 31% of people opting to fly with this airline when traveling to Southeast Asia. Keep in mind that there are 25 different airlines that fly to Southeast Asia on a routine basis, so you have a few additional options to choose from.

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

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

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

Prices for flights from Ontario Airport to Southeast Asia were last updated today.

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

The number of operators available for flights from Ontario Airport to Southeast Asia is 7 as of July 2025.

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

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Ontario Airport to Southeast Asia.

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

The required travel and health documents for your Southeast 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 Southeast Asia. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$361 Cheap Flights from Ontario to Southeast Asia in 2025

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Find the cheapest flights from Ontario to Southeast Asia

Round-trip

One-way

Last minute

Cheap round-trip flights

6:00 am - 10:05 pmONT-SGN

26h 05m2 stops

7:35 am - 5:10 pmSGN-ONT

23h 35m2 stops

$668Korean Air

Find Deal

Thu, Sep 11 - Thu, Oct 16

6:00 am - 11:59 pmONT-MNL

26h 59m2 stops

1:10 am - 5:11 pmMNL-ONT

31h 01m2 stops

$674Korean Air

Find Deal

Thu, Aug 21 - Wed, Aug 27

10:50 pm - 11:10 amONT-CEB

20h 20m1 stop

12:10 pm - 5:50 pmCEB-ONT

20h 40m1 stop

$685China Airlines

Find Deal

Thu, Jan 15 - Sat, Mar 14

10:50 pm - 9:55 amONT-MNL

19h 05m1 stop

4:55 pm - 4:50 pmMNL-ONT

15h 55m1 stop

$703China Airlines

Find Deal

Mon, Jan 26 - Mon, Feb 16

6:00 am - 6:25 pmONT-SIN

21h 25m1 stop

8:45 am - 5:37 pmSIN-ONT

23h 52m1 stop

$714United Airlines

Find Deal

Sun, Aug 31 - Sun, Sep 14

6:36 pm - 6:15 amONT-SIN

20h 39m1 stop

10:10 am - 12:37 pmSIN-ONT

18h 27m1 stop

$726United Airlines

Find Deal

Mon, Oct 20 - Mon, Nov 17

11:10 pm - 9:00 amONT-CRK

18h 50m1 stop

10:00 am - 5:05 pmCRK-ONT

22h 05m1 stop

$751STARLUX Airlines

Find Deal

Fri, Sep 5 - Sat, Sep 20

11:10 pm - 9:00 amONT-CRK

18h 50m1 stop

8:15 pm - 3:50 pmCRK-ONT

35h 35m1 stop

$753STARLUX Airlines

Find Deal

Mon, Oct 20 - Sun, Nov 2

1:31 pm - 11:00 amONT-CRK

30h 29m2 stops

12:05 pm - 9:40 amCRK-ONT

37h 35m2 stops

$1,005EVA Air

Find Deal

Wed, Oct 22 - Wed, Nov 26

7:40 pm - 11:00 amONT-CRK

24h 20m2 stops

12:00 pm - 12:03 amCRK-ONT

27h 03m2 stops

$1,033EVA Air

Find Deal

Thu, Sep 18 - Wed, Oct 8

Delta flights from Ontario to Southeast Asia

Our best Delta deals on Ontario to Southeast Asia flight tickets

Delta

Aug 31

ONT6:00 amOntario

40h 35m

2 stops

SGN12:35 pmHo Chi Minh City

Sep 16

SGN7:35 amHo Chi Minh City

29h 05m

2 stops

ONT10:40 pmOntario

$705

Find similar

Delta

Oct 22

ONT6:00 amOntario

26h 05m

2 stops

SGN10:05 pmHo Chi Minh City

Nov 24

SGN8:05 amHo Chi Minh City

24h 12m

2 stops

ONT5:17 pmOntario

$712

Find similar

Delta

Sep 14

ONT1:15 pmOntario

42h 20m

2 stops

HAN9:35 pmHanoi Noibai

Sep 21

HAN11:10 pmHanoi Noibai

37h 30m

2 stops

ONT10:40 pmOntario

$722

Find similar

STARLUX Airlines flights from Ontario to Southeast Asia

Our best STARLUX Airlines deals on Ontario to Southeast Asia flight tickets

STARLUX Airlines

Sep 5

ONT11:10 pmOntario

18h 50m

1 stop

CRK9:00 amAngeles City Clark Intl

Sep 20

CRK10:00 amAngeles City Clark Intl

22h 05m

1 stop

ONT5:05 pmOntario

$751

Find similar

STARLUX Airlines

Oct 20

ONT11:10 pmOntario

18h 50m

1 stop

CRK9:00 amAngeles City Clark Intl

Nov 2

CRK8:15 pmAngeles City Clark Intl

35h 35m

1 stop

ONT3:50 pmOntario

$753

Find similar

STARLUX Airlines

Sep 1

ONT11:10 pmOntario

19h 40m

1 stop

CEB9:50 amCebu City Mactan Intl

Oct 1

CEB10:50 amCebu City Mactan Intl

21h 15m

1 stop

ONT5:05 pmOntario

$780

Find similar

Fly from

Fly to

Route

Depart

Return

Price

OntarioHo Chi Minh City

ONT - SGN

ONTSGN

Ontario

Thu 9/11

6:00 am-10:05 pm

2 stops26h 05m

Ho Chi Minh City

Thu 10/16

7:35 am-5:10 pm

2 stops23h 35m

$668

OntarioManila

ONT - MNL

ONTMNL

Ontario

Thu 8/21

6:00 am-11:59 pm

2 stops26h 59m

Manila Ninoy Aquino Intl

Wed 8/27

1:10 am-5:11 pm

2 stops31h 01m

$674

OntarioCebu City

ONT - CEB

ONTCEB

Ontario

Thu 1/15

10:50 pm-11:10 am

1 stop20h 20m

Cebu City Mactan Intl

Sat 3/14

12:10 pm-5:50 pm

1 stop20h 40m

$685

OntarioManila

ONT - MNL

ONTMNL

Ontario

Mon 1/26

10:50 pm-9:55 am

1 stop19h 05m

Manila Ninoy Aquino Intl

Mon 2/16

4:55 pm-4:50 pm

1 stop15h 55m

$703

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Sun 8/31

6:00 am-6:25 pm

1 stop21h 25m

Singapore Changi

Sun 9/14

8:45 am-5:37 pm

1 stop23h 52m

$714

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Mon 10/20

6:36 pm-6:15 am

1 stop20h 39m

Singapore Changi

Mon 11/17

10:10 am-12:37 pm

1 stop18h 27m

$726

OntarioAngeles City

ONT - CRK

ONTCRK

Ontario

Fri 9/5

11:10 pm-9:00 am

1 stop18h 50m

Angeles City Clark Intl

Sat 9/20

10:00 am-5:05 pm

1 stop22h 05m

$751

OntarioAngeles City

ONT - CRK

ONTCRK

Ontario

Mon 10/20

11:10 pm-9:00 am

1 stop18h 50m

Angeles City Clark Intl

Sun 11/2

8:15 pm-3:50 pm

1 stop35h 35m

$753

OntarioAngeles City

ONT - CRK

ONTCRK

Ontario

Wed 10/22

1:31 pm-11:00 am

2 stops30h 29m

Angeles City Clark Intl

Wed 11/26

12:05 pm-9:40 am

2 stops37h 35m

$1,005

OntarioAngeles City

ONT - CRK

ONTCRK

Ontario

Thu 9/18

7:40 pm-11:00 am

2 stops24h 20m

Angeles City Clark Intl

Wed 10/8

12:00 pm-12:03 am

2 stops27h 03m

$1,033

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 Southeast 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

What is the cheapest month to fly to Southeast Asia?

The month of September is, on average, the cheapest month to fly to Southeast Asia from Ontario, with most prices found around $825. If you don’t want to visit Southeast Asia in September, then you should wait until March to fly from Ontario, when ticket prices are also cheap, with an average price of $871.

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

The cheapest day to depart from Ontario to Southeast Asia is on a Wednesday when prices can be found for as low as $884. If your travel schedule is flexible, try to avoid departing on a Friday because tickets tend to average around $1,065. These prices are subject to change though, so be sure to set up a Price Alert for flights to Southeast Asia.

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

In the morning is the cheapest time of day to fly from Ontario to Southeast Asia when you can find flight prices for as low as $911. Flying to Southeast Asia in the morning is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the afternoon because they tend to be around $1,279. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

You are more likely to see cheaper flights to Southeast Asia from Ontario when booking weeks ahead of your departure date. In general, you can expect to find flights to Southeast Asia for around $1,018 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Southeast Asia from Ontario for as low as $817 on momondo.

Can stopping save me money on Ontario to Southeast Asia flights?

No. A direct flight is the cheapest option for a flight between Ontario to Southeast Asia.

Cheap Ontario to Southeast Asia flight deals and tips

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

Best Price Found	$361
Fastest flight time	17h 15m
Direct flights	None
Airports in Southeast Asia	7 airports

The best one-way flight to Southeast Asia from Ontario in the past 72 hours is $361. The best round-trip flight deal from Ontario to Southeast Asia found on momondo in the last 72 hours is $668.

The fastest flight from Ontario to Southeast Asia takes 17h 15m

There are no direct flights from Ontario to Southeast Asia. Popular non-direct routes for this connection are Ontario Airport - Ho Chi Minh City Airport, Ontario Airport - Singapore Changi Airport and Ontario Airport - Hanoi Noibai Airport.

There are 7 airports near Southeast Asia: Cebu City Mactan Intl (CEB), Bangkok Suvarnabhumi (BKK), Hanoi Noibai (HAN), Singapore Changi (SIN), Manila Ninoy Aquino Intl (MNL), Ho Chi Minh City (SGN), Angeles City Clark Intl (CRK)

Search flight deals

When did momondo last update prices for flights from Ontario Airport to Southeast Asia?
Prices for flights from Ontario Airport to Southeast Asia were last updated today.
How many operators does momondo search for flights from Ontario Airport to Southeast Asia?
The number of operators available for flights from Ontario Airport to Southeast Asia is 7 as of July 2025.
How old do you have to be to fly from Ontario Airport to Southeast Asia?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Ontario Airport to Southeast Asia.
What documentation or ID do you need to fly to Southeast Asia?
The required travel and health documents for your Southeast 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 Southeast Asia. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Ontario to Southeast Asia?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Ontario to Southeast Asia is Airbus A320neo (15.84% of total bookings). The next most popular plane models are Airbus A321neo (12.77%), Boeing 737-800 Passenger/BBJ2 (winglets) (10.07%), and Boeing 737 MAX 8 (8.62%).

Best airlines flying from Ontario to Southeast Asia

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

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $539	Free Cancellation	Rating 7.4 8,900 reviews	Search United Airlines flights
Asiana Airlines	PriceFrom $640	Free Cancellation	Rating 8.2 468 reviews	Search Asiana Airlines flights
Korean Air	PriceFrom $698	Free Cancellation	Rating 8.4 1,121 reviews	Search Korean Air flights
China Airlines	PriceFrom $727	Free Cancellation	Rating 8.3 754 reviews	Search China Airlines flights
EVA Air	PriceFrom $732	Free Cancellation	Rating 8.4 1,220 reviews	Search EVA Air flights
STARLUX Airlines	PriceFrom $753	Free Cancellation	Rating 9.0 199 reviews	Search STARLUX Airlines flights
Philippine Airlines	PriceFrom $767	Free Cancellation	Rating 7.2 894 reviews	Search Philippine Airlines flights

Why use momondo?

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

It is quick and easy to find Ontario to Southeast 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 Southeast Asia that suits you.

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

Flights from Ontario to Southeast Asia with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once you have performed a search for Ontario to Southeast Asia flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Price alerts on flights to Southeast Asia from Ontario are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.