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

Korean Air and United Airlines are the most popular carriers operating from Ontario to Singapore

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 67% 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.

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

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

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

There are 3 operators available for flights from Ontario Airport to Singapore as of September 2026.

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

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.

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

The necessary travel and health documents for your Singapore 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.

$413 Cheap Flights from Ontario to Singapore in 2026/27

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.

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

31h 00m2 stops Salt Lake City Incheon Intl

10:30 pm - 10:43 pmSIN Singapore Changi-ONT Ontario

40h 13m2 stops Incheon Intl Seattle/Tacoma Intl

$836Delta

Wed, Dec 2 - Sun, Jan 17

7:00 am - 5:00 amONT Ontario-SIN Singapore Changi

30h 00m2 stops Seattle/Tacoma Intl Incheon Intl

10:30 pm - 4:12 pmSIN Singapore Changi-ONT Ontario

33h 42m2 stops Incheon Intl Salt Lake City

$836Delta

Tue, Dec 1 - Mon, Jan 18

6:00 am - 11:55 pmONT Ontario-SIN Singapore Changi

26h 55m2 stops Salt Lake City Incheon Intl

1:25 am - 11:55 pmSIN Singapore Changi-ONT Ontario

37h 30m2 stops Incheon Intl Salt Lake City

$836Delta

Tue, Oct 6 - Tue, Oct 13

1:35 pm - 7:00 amONT Ontario-SIN Singapore Changi

26h 25m1 stop San Francisco

10:10 am - 12:29 pmSIN Singapore Changi-ONT Ontario

18h 19m1 stop San Francisco

$874United Airlines

Tue, Oct 27 - Fri, Nov 6

6:00 am - 8:15 pmONT Ontario-SIN Singapore Changi

23h 15m1 stop San Francisco

10:10 am - 3:33 pmSIN Singapore Changi-ONT Ontario

21h 23m1 stop San Francisco

$874United Airlines

Thu, Oct 29 - Thu, Nov 5

6:00 am - 8:15 pmONT Ontario-SIN Singapore Changi

23h 15m1 stop San Francisco

10:10 am - 12:29 pmSIN Singapore Changi-ONT Ontario

18h 19m1 stop San Francisco

$874United Airlines

Tue, Oct 27 - Fri, Nov 6

10:50 pm - 1:05 pmONT Ontario-SIN Singapore Changi

22h 15m1 stop Taipei City Taiwan Taoyuan Intl

2:25 pm - 5:05 pmSIN Singapore Changi-ONT Ontario

18h 40m1 stop Taipei City Taiwan Taoyuan Intl

$953China Airlines

Fri, Feb 5 - Fri, Feb 19

10:50 pm - 1:05 pmONT Ontario-SIN Singapore Changi

22h 15m1 stop Taipei City Taiwan Taoyuan Intl

2:00 am - 5:05 pmSIN Singapore Changi-ONT Ontario

31h 05m1 stop Taipei City Taiwan Taoyuan Intl

$953China Airlines

Fri, Feb 5 - Sat, Feb 20

9:45 pm - 1:25 pmONT Ontario-SIN Singapore Changi

23h 40m1 stop Taipei City Taiwan Taoyuan Intl

2:45 pm - 3:55 pmSIN Singapore Changi-ONT Ontario

17h 10m1 stop Taipei City Taiwan Taoyuan Intl

$1,091STARLUX Airlines

Wed, Feb 3 - Sat, Feb 27

9:45 pm - 1:25 pmONT Ontario-SIN Singapore Changi

23h 40m1 stop Taipei City Taiwan Taoyuan Intl

2:45 pm - 3:55 pmSIN Singapore Changi-ONT Ontario

17h 10m1 stop Taipei City Taiwan Taoyuan Intl

$1,091STARLUX Airlines

Fri, Feb 19 - Sat, Feb 27

Cheap last minute flights

Enter your travel dates to find the best prices.

1:56 pm - 6:35 pmONT Ontario-SIN Singapore Changi

37h 39m1 stop San Francisco

8:35 pm - 8:01 pmSIN Singapore Changi-ONT Ontario

38h 26m1 stop San Francisco

$865United Airlines

Sat, Sep 19 - Tue, Sep 22

1:18 pm - 6:35 pmONT Ontario-SIN Singapore Changi

38h 17m2 stops Denver Intl San Francisco

8:35 pm - 8:01 pmSIN Singapore Changi-ONT Ontario

38h 26m1 stop San Francisco

$865United Airlines

Sat, Sep 19 - Tue, Sep 22

1:56 pm - 6:15 amONT Ontario-SIN Singapore Changi

25h 19m1 stop San Francisco

8:45 am - 2:01 pmSIN Singapore Changi-ONT Ontario

20h 16m1 stop San Francisco

$865United Airlines

Sat, Sep 19 - Tue, Sep 22

12:10 am - 12:30 pmONT Ontario-SIN Singapore Changi

21h 20m1 stop Taipei City Taiwan Taoyuan Intl

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

19h 05m1 stop Taipei City Taiwan Taoyuan Intl

$1,043China Airlines

Sat, Sep 19 - Tue, Sep 29

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

33h 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

$1,069China Airlines

Mon, Sep 21 - Sat, Sep 26

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

33h 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

$1,069China Airlines

Mon, Sep 21 - Tue, Sep 29

12:10 am - 8:00 pmONT Ontario-SIN Singapore Changi

28h 50m2 stops Taipei City Taiwan Taoyuan Intl Ho Chi Minh City

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

26h 00m2 stops Ho Chi Minh City Taipei City Taiwan Taoyuan Intl

$1,086Multiple Airlines

Mon, Sep 21 - Tue, Sep 29

12:12 pm - 8:50 amONT Ontario-SIN Singapore Changi

29h 38m2 stops Seattle/Tacoma Intl Doha Hamad Intl

3:15 am - 6:00 pmSIN Singapore Changi-ONT Ontario

29h 45m2 stops Doha Hamad Intl Seattle/Tacoma Intl

$1,206Qatar Airways

Fri, Sep 18 - Tue, Oct 20

12:12 pm - 8:50 amONT Ontario-SIN Singapore Changi

29h 38m2 stops Seattle/Tacoma Intl Doha Hamad Intl

3:15 am - 11:42 pmSIN Singapore Changi-ONT Ontario

35h 27m2 stops Doha Hamad Intl Seattle/Tacoma Intl

$1,206Qatar Airways

Fri, Sep 18 - Wed, Oct 21

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

22h 10m1 stop Taipei City Taiwan Taoyuan Intl

2:00 pm - 5:05 pmSIN Singapore Changi-ONT Ontario

18h 05m1 stop Taipei City Taiwan Taoyuan Intl

$7,295STARLUX Airlines

Sat, Sep 19 - Fri, Sep 25

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China Airlines flights from Ontario to Singapore

Our best China Airlines deals on Ontario to Singapore flight tickets

China Airlines

Feb 5

ONT10:50 pmOntario

22h 15m

1 stop

SIN1:05 pmSingapore Changi

Feb 19

SIN2:25 pmSingapore Changi

18h 40m

1 stop

ONT5:05 pmOntario

$953

China Airlines

Jan 5

ONT10:50 pmOntario

33h 50m

1 stop

SIN12:40 amSingapore Changi

Jan 18

SIN2:00 amSingapore Changi

31h 05m

1 stop

ONT5:05 pmOntario

$974

China Airlines

Oct 25

ONT11:50 pmOntario

22h 15m

1 stop

SIN1:05 pmSingapore Changi

Nov 9

SIN2:25 pmSingapore Changi

18h 40m

1 stop

ONT5:05 pmOntario

$976

Delta flights from Ontario to Singapore

Our best Delta deals on Ontario to Singapore flight tickets

Delta

Oct 6

ONT6:00 amOntario

26h 55m

2 stops

SIN11:55 pmSingapore Changi

Oct 13

SIN1:25 amSingapore Changi

37h 30m

2 stops

ONT11:55 pmOntario

$836

Delta

Feb 2

ONT7:00 amOntario

30h 00m

2 stops

SIN5:00 amSingapore Changi

Mar 2

SIN1:40 amSingapore Changi

37h 03m

2 stops

ONT10:43 pmOntario

$837

Delta

Jan 29

ONT5:05 pmOntario

39h 10m

2 stops

SIN12:15 amSingapore Changi

Mar 1

SIN1:40 amSingapore Changi

37h 03m

2 stops

ONT10:43 pmOntario

$842

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioSingapore

ONT Ontario - SIN Singapore Changi

ONTSIN

Ontario

Wed 12/2

6:00 am-5:00 am

2 stops31h 00m

Singapore Changi

Sun 1/17

10:30 pm-10:43 pm

2 stops40h 13m

$836

OntarioSingapore

ONT Ontario - SIN Singapore Changi

ONTSIN

Ontario

Tue 12/1

7:00 am-5:00 am

2 stops30h 00m

Singapore Changi

Mon 1/18

10:30 pm-4:12 pm

2 stops33h 42m

$836

OntarioSingapore

ONT Ontario - SIN Singapore Changi

ONTSIN

Ontario

Tue 10/6

6:00 am-11:55 pm

2 stops26h 55m

Singapore Changi

Tue 10/13

1:25 am-11:55 pm

2 stops37h 30m

$836

OntarioSingapore

ONT Ontario - SIN Singapore Changi

ONTSIN

Ontario

Tue 10/27

1:35 pm-7:00 am

1 stop26h 25m

Singapore Changi

Fri 11/6

10:10 am-12:29 pm

1 stop18h 19m

$874

OntarioSingapore

ONT Ontario - SIN Singapore Changi

ONTSIN

Ontario

Thu 10/29

6:00 am-8:15 pm

1 stop23h 15m

Singapore Changi

Thu 11/5

10:10 am-3:33 pm

1 stop21h 23m

$874

OntarioSingapore

ONT Ontario - SIN Singapore Changi

ONTSIN

Ontario

Tue 10/27

6:00 am-8:15 pm

1 stop23h 15m

Singapore Changi

Fri 11/6

10:10 am-12:29 pm

1 stop18h 19m

$874

OntarioSingapore

ONT Ontario - SIN Singapore Changi

ONTSIN

Ontario

Fri 2/5

10:50 pm-1:05 pm

1 stop22h 15m

Singapore Changi

Fri 2/19

2:25 pm-5:05 pm

1 stop18h 40m

$953

OntarioSingapore

ONT Ontario - SIN Singapore Changi

ONTSIN

Ontario

Fri 2/5

10:50 pm-1:05 pm

1 stop22h 15m

Singapore Changi

Sat 2/20

2:00 am-5:05 pm

1 stop31h 05m

$953

Quickest round-trip

OntarioSingapore

ONT Ontario - SIN Singapore Changi

ONTSIN

Ontario

Wed 2/3

9:45 pm-1:25 pm

1 stop23h 40m

Singapore Changi

Sat 2/27

2:45 pm-3:55 pm

1 stop17h 10m

$1,091

OntarioSingapore

ONT Ontario - SIN Singapore Changi

ONTSIN

Ontario

Fri 2/19

9:45 pm-1:25 pm

1 stop23h 40m

Singapore Changi

Sat 2/27

2:45 pm-3:55 pm

1 stop17h 10m

$1,091

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 cheapest month to fly to Singapore?

The month of September is, on average, the cheapest month to fly to Singapore from Ontario, with most prices found around $0. If you aren’t able to travel to Singapore during the month of September, then flying in June is also cheap. Prices for this month can be found on momondo for an average of $0.

Can stopping save me money on Ontario to Singapore flights?

You could potentially save up to 8% on your flight if you consider stops on a Ontario to Singapore flight.

Cheap Ontario to Singapore flight deals and tips

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

Best Price Found	$413
Fastest flight time	21h 27m
Direct flights	None

The best one-way flight to Singapore from Ontario in the past 72 hours is $413. The best round-trip flight deal from Ontario to Singapore found on momondo in the last 72 hours is $836.

The fastest flight from Ontario to Singapore takes 21h 27m

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

When did momondo last update prices for flights from Ontario Airport to Singapore?
Prices for flights from Ontario Airport to Singapore are updated daily.
How many operators does momondo search for flights from Ontario Airport to Singapore?
There are 3 operators available for flights from Ontario Airport to Singapore as of September 2026.
How old do you have to be to fly from Ontario Airport to Singapore?
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.
What documentation or ID do you need to fly to Singapore?
The necessary travel and health documents for your Singapore 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.

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 10,214 reviews	Search United Airlines flights
STARLUX Airlines	PriceFrom $887	Free Cancellation	Rating 8.7 380 reviews	Search STARLUX Airlines flights
China Airlines	PriceFrom $964	Free Cancellation	Rating 8.3 847 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?

Flights from Ontario to Singapore 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 Singapore?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Ontario to Singapore.

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

Yes momondo offers price alerts on flights to Singapore from Ontario. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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Flights to Singaporefrom $595

Cheap flights from Ontario to Singapore from $413

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 Singapore departing on 10/14. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from Ontario to Singapore

Cheap round-trip flights

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Cheap last minute flights

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

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China Airlines flights from Ontario to Singapore

Our best China Airlines deals on Ontario to Singapore flight tickets

Delta flights from Ontario to Singapore

Our best Delta deals on Ontario to Singapore flight tickets

momondo Fare Finder

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

See travel insights to Singapore from

How to get the cheapest flight ticket from Ontario to Singapore

What is the cheapest month to fly to Singapore?

Can stopping save me money on Ontario to Singapore flights?

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

What airlines fly to Singapore?

Cheap Ontario to Singapore flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from Ontario to Singapore

Best airlines flying from Ontario to Singapore

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

Why use momondo?

An easier way to manage your Singapore 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 Singapore

Popular cities in Singapore

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

Ontario flight routes

According to popular flight searches on momondo this year

Singapore flight routes

According to popular flight searches on momondo this year

Fly your favorite airline to Singapore

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Singapore

List of cabin classes available on flights landing in Singapore. Availability may vary depending on flight origin and airline.

Complete your trip to Singapore

Explore popular destinations other users love

According to popular flight searches on momondo this year