What airlines fly to Southeast Asia?

Philippine Airlines, Singapore 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 23 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?

Delta, Korean Air, and United 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 May 2026.

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.

$395 Cheap Flights from Ontario to Southeast Asia in 2026

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Find the cheapest flights from Ontario to Southeast Asia

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:20 am - 12:45 am

ONT

CGK

28h 25m

2 stops

2:15 am - 5:21 pm

CGK

ONT

29h 06m

2 stops

$774Korean Air

Wed, Jul 8 - Tue, Jul 28

6:20 am - 12:45 am

ONT

CGK

28h 25m

2 stops

2:15 am - 11:44 pm

CGK

ONT

35h 29m

2 stops

$799Delta

Fri, Aug 14 - Wed, Sep 2

6:05 am - 6:35 pm

ONT

SIN

21h 30m

1 stop

10:10 am - 11:06 pm

SIN

ONT

27h 56m

1 stop

$873United Airlines

Thu, Oct 1 - Thu, Oct 29

6:00 am - 5:05 am

ONT

CGK

33h 05m

2 stops

9:25 pm - 8:01 pm

CGK

ONT

36h 36m

2 stops

$874United Airlines

Wed, Aug 19 - Mon, Aug 31

6:00 am - 11:30 pm

ONT

CEB

26h 30m

2 stops

1:00 am - 5:16 pm

CEB

ONT

31h 16m

2 stops

$905Multiple Airlines

Tue, Sep 1 - Mon, Sep 28

7:00 am - 11:30 pm

ONT

CEB

25h 30m

2 stops

1:00 am - 5:17 pm

CEB

ONT

31h 17m

2 stops

$906Multiple Airlines

Wed, Oct 14 - Wed, Oct 21

12:45 am - 9:35 am

ONT

MNL

17h 50m

1 stop

4:50 pm - 6:40 pm

MNL

ONT

16h 50m

1 stop

$945China Airlines

Tue, Aug 11 - Tue, Aug 18

11:50 pm - 9:55 am

ONT

MNL

19h 05m

1 stop

4:55 pm - 4:50 pm

MNL

ONT

15h 55m

1 stop

$946China Airlines

Sat, Oct 31 - Fri, Nov 13

11:55 pm - 7:30 pm

ONT

CRK

28h 35m

1 stop

8:30 pm - 5:40 pm

CRK

ONT

36h 10m

1 stop

$1,079STARLUX Airlines

Fri, Aug 7 - Sun, Aug 23

11:55 pm - 9:00 am

ONT

CRK

18h 05m

1 stop

10:00 am - 5:40 pm

CRK

ONT

22h 40m

1 stop

$1,101STARLUX Airlines

Wed, Aug 5 - Fri, Aug 14

Delta flights from Ontario to Southeast Asia

Our best Delta deals on Ontario to Southeast Asia flight tickets

Delta

Aug 14

ONT6:20 amOntario

28h 25m

2 stops

CGK12:45 amJakarta Soekarno-Hatta Intl

Sep 2

CGK2:15 amJakarta Soekarno-Hatta Intl

35h 29m

2 stops

ONT11:44 pmOntario

$799

Delta

Sep 1

ONT6:00 amOntario

28h 45m

2 stops

CGK12:45 amJakarta Soekarno-Hatta Intl

Sep 17

CGK2:15 amJakarta Soekarno-Hatta Intl

34h 25m

2 stops

ONT10:40 pmOntario

$823

Delta

Sep 10

ONT6:00 amOntario

26h 55m

2 stops

SIN11:55 pmSingapore Changi

Sep 18

SIN7:30 amSingapore Changi

30h 10m

2 stops

ONT10:40 pmOntario

$834

Korean Air flights from Ontario to Southeast Asia

Our best Korean Air deals on Ontario to Southeast Asia flight tickets

Korean Air

Jul 8

ONT6:20 amOntario

28h 25m

2 stops

CGK12:45 amJakarta Soekarno-Hatta Intl

Jul 28

CGK2:15 amJakarta Soekarno-Hatta Intl

29h 06m

2 stops

ONT5:21 pmOntario

$774

Korean Air

Sep 13

ONT7:00 amOntario

27h 45m

2 stops

CGK12:45 amJakarta Soekarno-Hatta Intl

Oct 12

CGK2:15 amJakarta Soekarno-Hatta Intl

29h 02m

2 stops

ONT5:17 pmOntario

$804

Korean Air

Sep 1

ONT7:00 amOntario

25h 30m

2 stops

CEB11:30 pmCebu City Mactan Intl

Sep 28

CEB1:00 amCebu City Mactan Intl

31h 16m

2 stops

ONT5:16 pmOntario

$823

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioJakarta

ONT - CGK

ONTCGK

Ontario

Wed 7/8

6:20 am-12:45 am

2 stops28h 25m

Jakarta Soekarno-Hatta Intl

Tue 7/28

2:15 am-5:21 pm

2 stops29h 06m

$774

OntarioJakarta

ONT - CGK

ONTCGK

Ontario

Fri 8/14

6:20 am-12:45 am

2 stops28h 25m

Jakarta Soekarno-Hatta Intl

Wed 9/2

2:15 am-11:44 pm

2 stops35h 29m

$799

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Thu 10/1

6:05 am-6:35 pm

1 stop21h 30m

Singapore Changi

Thu 10/29

10:10 am-11:06 pm

1 stop27h 56m

$873

OntarioJakarta

ONT - CGK

ONTCGK

Ontario

Wed 8/19

6:00 am-5:05 am

2 stops33h 05m

Jakarta Soekarno-Hatta Intl

Mon 8/31

9:25 pm-8:01 pm

2 stops36h 36m

$874

OntarioCebu City

ONT - CEB

ONTCEB

Ontario

Tue 9/1

6:00 am-11:30 pm

2 stops26h 30m

Cebu City Mactan Intl

Mon 9/28

1:00 am-5:16 pm

2 stops31h 16m

$905

OntarioCebu City

ONT - CEB

ONTCEB

Ontario

Wed 10/14

7:00 am-11:30 pm

2 stops25h 30m

Cebu City Mactan Intl

Wed 10/21

1:00 am-5:17 pm

2 stops31h 17m

$906

Quickest round-trip

OntarioManila

ONT - MNL

ONTMNL

Ontario

Tue 8/11

12:45 am-9:35 am

1 stop17h 50m

Manila Ninoy Aquino Intl

Tue 8/18

4:50 pm-6:40 pm

1 stop16h 50m

$945

OntarioManila

ONT - MNL

ONTMNL

Ontario

Sat 10/31

11:50 pm-9:55 am

1 stop19h 05m

Manila Ninoy Aquino Intl

Fri 11/13

4:55 pm-4:50 pm

1 stop15h 55m

$946

OntarioAngeles City

ONT - CRK

ONTCRK

Ontario

Fri 8/7

11:55 pm-7:30 pm

1 stop28h 35m

Angeles City Clark Intl

Sun 8/23

8:30 pm-5:40 pm

1 stop36h 10m

$1,079

OntarioAngeles City

ONT - CRK

ONTCRK

Ontario

Wed 8/5

11:55 pm-9:00 am

1 stop18h 05m

Angeles City Clark Intl

Fri 8/14

10:00 am-5:40 pm

1 stop22h 40m

$1,101

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 April is, on average, the cheapest month to fly to Southeast Asia from Ontario, with most prices found around $360. If you don’t want to visit Southeast Asia in April, then you should wait until September to fly from Ontario, when ticket prices are also cheap, with an average price of $392.

How far in advance should I book a flight from Ontario 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 $954 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 $761 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

Fastest flight time	18h 30m
Direct flights	None

The fastest flight from Ontario to Southeast Asia takes 18h 30m

There are no direct flights from Ontario to Southeast Asia. There are no popular flight routes from Ontario to Southeast Asia.

Search flight deals

Frequently asked questions about flying 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 May 2026.
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 A321neo (13.71% of total bookings). The next most popular plane models are Boeing 737 MAX 8 (12.98%), Airbus A320neo (11.77%), and Airbus A321-100/200 (11.77%).

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
Delta	PriceFrom $457	Free Cancellation	Rating 7.9 8,445 reviews	Search Delta flights
United Airlines	PriceFrom $604	Free Cancellation	Rating 7.4 9,753 reviews	Search United Airlines flights
Korean Air	PriceFrom $616	Free Cancellation	Rating 8.4 1,217 reviews	Search Korean Air flights
Asiana Airlines	PriceFrom $640	Free Cancellation	Rating 8.1 534 reviews	Search Asiana Airlines flights
China Airlines	PriceFrom $653	Free Cancellation	Rating 8.3 826 reviews	Search China Airlines flights
STARLUX Airlines	PriceFrom $667	Free Cancellation	Rating 8.9 318 reviews	Search STARLUX Airlines flights
Philippine Airlines	PriceFrom $754	Free Cancellation	Rating 7.3 998 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.