What airlines fly to Singapore?

Singapore Airlines, United Airlines and Cathay Pacific are the top three most popular airlines that fly to Singapore from Ontario according to our data. Singapore Airlines is the first choice among our users, with 64% of people opting to fly with this airline when traveling to Singapore. Keep in mind that there are 15 different airlines that fly to Singapore on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Ontario to Singapore Changi?

United Airlines is the most popular carrier operating from Ontario to Singapore Changi

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

Prices for flights from Ontario Airport to Singapore Changi Airport are updated daily.

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

The number of operators available for flights from Ontario Airport to Singapore Changi Airport is 3 as of August 2026.

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

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ontario Airport to Singapore Changi Airport.

What documentation or ID do you need to fly to Singapore Changi Airport?

The necessary travel and health documents for your Singapore Changi Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$412 Cheap Flights from Ontario to Singapore in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Ontario to Singapore

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:20 am - 7:15 pmONT Ontario-SIN Singapore Changi

45h 55m2 stops Seattle/Tacoma Intl Incheon Intl

1:35 am - 5:17 pmSIN Singapore Changi-ONT Ontario

31h 42m2 stops Incheon Intl Seattle/Tacoma Intl

$835Delta

Wed, Oct 7 - Tue, Mar 9

6:20 am - 5:00 amONT Ontario-SIN Singapore Changi

31h 40m2 stops Seattle/Tacoma Intl Incheon Intl

1:35 am - 11:48 pmSIN Singapore Changi-ONT Ontario

38h 13m2 stops Incheon Intl Salt Lake City

$835Delta

Tue, Oct 13 - Mon, Mar 8

6:20 am - 7:15 pmONT Ontario-SIN Singapore Changi

45h 55m2 stops Seattle/Tacoma Intl Incheon Intl

1:35 am - 4:12 pmSIN Singapore Changi-ONT Ontario

30h 37m2 stops Incheon Intl Salt Lake City

$835Delta

Wed, Oct 7 - Mon, Mar 8

7:13 pm - 6:15 amONT Ontario-SIN Singapore Changi

20h 02m1 stop San Francisco

8:45 am - 12:12 pmSIN Singapore Changi-ONT Ontario

18h 27m1 stop San Francisco

$873United Airlines

Mon, Aug 24 - Thu, Sep 10

6:00 am - 6:35 pmONT Ontario-SIN Singapore Changi

21h 35m1 stop San Francisco

10:10 am - 12:20 pmSIN Singapore Changi-ONT Ontario

18h 10m1 stop San Francisco

$873United Airlines

Fri, Oct 9 - Mon, Mar 8

6:00 am - 6:35 pmONT Ontario-SIN Singapore Changi

21h 35m1 stop San Francisco

10:10 am - 5:47 pmSIN Singapore Changi-ONT Ontario

23h 37m1 stop San Francisco

$873United Airlines

Fri, Oct 9 - Sun, Mar 7

11:55 pm - 12:40 pmONT Ontario-SIN Singapore Changi

21h 45m1 stop Taipei City Taiwan Taoyuan Intl

2:00 pm - 5:40 pmSIN Singapore Changi-ONT Ontario

18h 40m1 stop Taipei City Taiwan Taoyuan Intl

$960STARLUX Airlines

Mon, Aug 24 - Fri, Aug 28

11:30 pm - 12:40 pmONT Ontario-SIN Singapore Changi

22h 10m1 stop Taipei City Taiwan Taoyuan Intl

2:10 pm - 5:05 pmSIN Singapore Changi-ONT Ontario

17h 55m1 stop Taipei City Taiwan Taoyuan Intl

$960STARLUX Airlines

Sat, Oct 17 - Sat, Oct 24

12:10 am - 12:35 pmONT Ontario-SIN Singapore Changi

21h 25m1 stop Taipei City Taiwan Taoyuan Intl

2:00 am - 6:05 pmSIN Singapore Changi-ONT Ontario

31h 05m1 stop Taipei City Taiwan Taoyuan Intl

$987China Airlines

Sat, Oct 17 - Tue, Oct 27

12:10 am - 12:35 pmONT Ontario-SIN Singapore Changi

21h 25m1 stop Taipei City Taiwan Taoyuan Intl

1:55 pm - 6:00 pmSIN Singapore Changi-ONT Ontario

19h 05m1 stop Taipei City Taiwan Taoyuan Intl

$987China Airlines

Sun, Sep 27 - Mon, Oct 19

Cheap last minute flights

Enter your travel dates to find the best prices.

12:45 am - 12:35 pmONT Ontario-SIN Singapore Changi

20h 50m1 stop Taipei City Taiwan Taoyuan Intl

1:55 pm - 6:40 pmSIN Singapore Changi-ONT Ontario

19h 45m1 stop Taipei City Taiwan Taoyuan Intl

$1,012China Airlines

Tue, Aug 11 - Thu, Aug 27

12:45 am - 9:20 pmONT Ontario-SIN Singapore Changi

29h 35m2 stops Taipei City Taiwan Taoyuan Intl Ho Chi Minh City

7:00 am - 6:40 pmSIN Singapore Changi-ONT Ontario

26h 40m2 stops Ho Chi Minh City Taipei City Taiwan Taoyuan Intl

$1,069Multiple Airlines

Sat, Aug 15 - Mon, Aug 24

6:08 am - 6:35 pmONT Ontario-SIN Singapore Changi

21h 27m1 stop San Francisco

8:45 am - 6:11 pmSIN Singapore Changi-ONT Ontario

24h 26m1 stop San Francisco

$1,070United Airlines

Sun, Aug 16 - Mon, Aug 24

9:01 am - 12:45 amONT Ontario-SIN Singapore Changi

24h 44m2 stops San Francisco Tokyo Narita

8:45 am - 8:01 pmSIN Singapore Changi-ONT Ontario

26h 16m1 stop San Francisco

$1,082United Airlines

Sun, Aug 16 - Mon, Aug 24

6:08 am - 6:35 pmONT Ontario-SIN Singapore Changi

21h 27m1 stop San Francisco

8:45 am - 6:11 pmSIN Singapore Changi-ONT Ontario

24h 26m1 stop San Francisco

$1,164United Airlines

Wed, Aug 12 - Sun, Aug 16

12:45 am - 12:35 amONT Ontario-SIN Singapore Changi

32h 50m1 stop Taipei City Taiwan Taoyuan Intl

1:55 pm - 6:40 pmSIN Singapore Changi-ONT Ontario

19h 45m1 stop Taipei City Taiwan Taoyuan Intl

$1,171China Airlines

Wed, Aug 12 - Sat, Aug 15

6:00 am - 5:00 amONT Ontario-SIN Singapore Changi

32h 00m2 stops Salt Lake City Incheon Intl

7:30 am - 10:45 pmSIN Singapore Changi-ONT Ontario

30h 15m2 stops Incheon Intl Seattle/Tacoma Intl

$1,280Delta

Wed, Aug 12 - Sat, Aug 15

12:45 am - 12:35 pmONT Ontario-SIN Singapore Changi

20h 50m1 stop Taipei City Taiwan Taoyuan Intl

1:55 pm - 6:40 pmSIN Singapore Changi-ONT Ontario

19h 45m1 stop Taipei City Taiwan Taoyuan Intl

$1,288China Airlines

Tue, Aug 11 - Sat, Aug 15

12:45 am - 11:35 pmONT Ontario-SIN Singapore Changi

31h 50m2 stops Taipei City Taiwan Taoyuan Intl Manila Ninoy Aquino Intl

10:05 am - 6:40 pmSIN Singapore Changi-ONT Ontario

23h 35m2 stops Manila Ninoy Aquino Intl Taipei City Taiwan Taoyuan Intl

$1,317Multiple Airlines

Fri, Aug 14 - Sat, Aug 22

11:55 pm - 12:40 pmONT Ontario-SIN Singapore Changi

21h 45m1 stop Taipei City Taiwan Taoyuan Intl

2:00 pm - 5:40 pmSIN Singapore Changi-ONT Ontario

18h 40m1 stop Taipei City Taiwan Taoyuan Intl

$5,530STARLUX Airlines

Sat, Aug 15 - Wed, Aug 19

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Delta flights from Ontario to Singapore

Our best Delta deals on Ontario to Singapore flight tickets

Delta

Oct 12

ONT6:00 amOntario

32h 00m

2 stops

SIN5:00 amSingapore Changi

Oct 20

SIN7:30 amSingapore Changi

24h 42m

2 stops

ONT5:12 pmOntario

$835

Delta

Sep 7

ONT6:20 amOntario

31h 40m

2 stops

SIN5:00 amSingapore Changi

Sep 14

SIN7:30 amSingapore Changi

30h 10m

2 stops

ONT10:40 pmOntario

$836

Delta

Aug 23

ONT5:05 pmOntario

59h 10m

2 stops

SIN7:15 pmSingapore Changi

Sep 13

SIN1:25 amSingapore Changi

36h 15m

2 stops

ONT10:40 pmOntario

$841

Korean Air flights from Ontario to Singapore

Our best Korean Air deals on Ontario to Singapore flight tickets

Korean Air

Sep 17

ONT6:00 amOntario

32h 00m

2 stops

SIN5:00 amSingapore Changi

Oct 18

SIN10:00 pmSingapore Changi

34h 12m

2 stops

ONT5:12 pmOntario

$840

Korean Air

Sep 18

ONT6:00 amOntario

32h 00m

2 stops

SIN5:00 amSingapore Changi

Oct 14

SIN10:00 pmSingapore Changi

34h 12m

2 stops

ONT5:12 pmOntario

$890

Korean Air

Jan 5

ONT7:00 amOntario

25h 10m

2 stops

SIN12:10 amSingapore Changi

May 11

SIN7:30 amSingapore Changi

24h 47m

2 stops

ONT5:17 pmOntario

$897

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioSingapore

ONT Ontario - SIN Singapore Changi

ONTSIN

Ontario

Wed 10/7

6:20 am-7:15 pm

2 stops45h 55m

Singapore Changi

Tue 3/9

1:35 am-5:17 pm

2 stops31h 42m

$835

OntarioSingapore

ONT Ontario - SIN Singapore Changi

ONTSIN

Ontario

Tue 10/13

6:20 am-5:00 am

2 stops31h 40m

Singapore Changi

Mon 3/8

1:35 am-11:48 pm

2 stops38h 13m

$835

OntarioSingapore

ONT Ontario - SIN Singapore Changi

ONTSIN

Ontario

Wed 10/7

6:20 am-7:15 pm

2 stops45h 55m

Singapore Changi

Mon 3/8

1:35 am-4:12 pm

2 stops30h 37m

$835

Quickest round-trip

OntarioSingapore

ONT Ontario - SIN Singapore Changi

ONTSIN

Ontario

Mon 8/24

7:13 pm-6:15 am

1 stop20h 02m

Singapore Changi

Thu 9/10

8:45 am-12:12 pm

1 stop18h 27m

$873

OntarioSingapore

ONT Ontario - SIN Singapore Changi

ONTSIN

Ontario

Fri 10/9

6:00 am-6:35 pm

1 stop21h 35m

Singapore Changi

Mon 3/8

10:10 am-12:20 pm

1 stop18h 10m

$873

OntarioSingapore

ONT Ontario - SIN Singapore Changi

ONTSIN

Ontario

Fri 10/9

6:00 am-6:35 pm

1 stop21h 35m

Singapore Changi

Sun 3/7

10:10 am-5:47 pm

1 stop23h 37m

$873

OntarioSingapore

ONT Ontario - SIN Singapore Changi

ONTSIN

Ontario

Mon 8/24

11:55 pm-12:40 pm

1 stop21h 45m

Singapore Changi

Fri 8/28

2:00 pm-5:40 pm

1 stop18h 40m

$960

OntarioSingapore

ONT Ontario - SIN Singapore Changi

ONTSIN

Ontario

Sat 10/17

11:30 pm-12:40 pm

1 stop22h 10m

Singapore Changi

Sat 10/24

2:10 pm-5:05 pm

1 stop17h 55m

$960

OntarioSingapore

ONT Ontario - SIN Singapore Changi

ONTSIN

Ontario

Sat 10/17

12:10 am-12:35 pm

1 stop21h 25m

Singapore Changi

Tue 10/27

2:00 am-6:05 pm

1 stop31h 05m

$987

OntarioSingapore

ONT Ontario - SIN Singapore Changi

ONTSIN

Ontario

Sun 9/27

12:10 am-12:35 pm

1 stop21h 25m

Singapore Changi

Mon 10/19

1:55 pm-6:00 pm

1 stop19h 05m

$987

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 Singapore

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 typical price of a round-trip flight between Ontario and Singapore?

Prices are currently low for flights on this route.

Typical prices usually range from $872 to $2,123.
The lowest price recently found on this route was $835.

What is the cheapest month to fly to Singapore?

The month of October is, on average, the cheapest month to fly to Singapore from Ontario, with most prices found around $887. If you aren’t able to travel to Singapore during the month of October, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $968.

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

The cheapest day to depart from Ontario to Singapore is on a Sunday when prices can be found for as low as $821. The most expensive day to fly to Singapore is Friday, with ticket prices averaging around $922.

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

In the evening is the cheapest time of day to fly from Ontario to Singapore when you can find flight prices for as low as $861. Flying to Singapore in the evening is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $1,651 on average. Flights to Singapore from Ontario in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

Can stopping save me money on Ontario to Singapore flights?

You could potentially save up to 24% on your flight if you consider stops on a Ontario to Singapore flight.

When to book flights from Ontario to Singapore

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to Singapore according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Ontario to Singapore (ONT to SIN) flight deals and tips

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

Fastest flight time	19h 32m
Direct flights	None

The fastest flight from Ontario to Singapore takes 19h 32m

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

Search flight deals

Frequently asked questions about flying from Ontario to Singapore

How far is Ontario to Singapore Changi by plane?
The straight-line distance from Ontario to Singapore Changi is 8797.3 mi. Typically, this will take 19h 32m by plane in normal conditions.
When did momondo last update prices for flights from Ontario Airport to Singapore Changi Airport?
Prices for flights from Ontario Airport to Singapore Changi Airport are updated daily.
How many operators does momondo search for flights from Ontario Airport to Singapore Changi Airport?
The number of operators available for flights from Ontario Airport to Singapore Changi Airport is 3 as of August 2026.
How old do you have to be to fly from Ontario Airport to Singapore Changi Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ontario Airport to Singapore Changi Airport.
What documentation or ID do you need to fly to Singapore Changi Airport?
The necessary travel and health documents for your Singapore Changi Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Ontario to Singapore?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Ontario to Singapore is China Airlines (47% of total bookings). The next most popular airlines are United Airlines (40%) and STARLUX Airlines (13%).

Best airlines flying from Ontario to Singapore

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

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $783	Free Cancellation	Rating 7.4 10,103 reviews	Search United Airlines flights
STARLUX Airlines	PriceFrom $887	Free Cancellation	Rating 8.8 367 reviews	Search STARLUX Airlines flights
China Airlines	PriceFrom $964	Free Cancellation	Rating 8.3 841 reviews	Search China Airlines flights

Why use momondo?

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

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

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

Yes. momondo allows you to filter the results for Ontario to Singapore flights to just show those with flexible booking policies.

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

momondo provides multiple filters to help you find the best flight to Singapore 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 Singapore right now. Can momondo alert me if prices change?

Price alerts on flights to Singapore 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.