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 65% 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?

Delta, Korean Air, and United Airlines are the most popular carriers 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 September 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.

$413 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.

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

26h 55m2 stops Seattle/Tacoma Intl Incheon Intl

10:00 pm - 5:12 pmSIN Singapore Changi-ONT Ontario

34h 12m2 stops Incheon Intl Seattle/Tacoma Intl

$836Delta

Thu, Sep 17 - Sun, Oct 18

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

26h 55m2 stops Salt Lake City Incheon Intl

7:30 am - 5:12 pmSIN Singapore Changi-ONT Ontario

24h 42m2 stops Incheon Intl Seattle/Tacoma Intl

$836Delta

Thu, Sep 17 - Tue, Oct 20

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

26h 55m2 stops Seattle/Tacoma Intl Incheon Intl

1:25 am - 5:12 pmSIN Singapore Changi-ONT Ontario

30h 47m2 stops Incheon Intl Seattle/Tacoma Intl

$836Delta

Tue, Sep 15 - Sun, Oct 18

4:03 pm - 7:00 amONT Ontario-SIN Singapore Changi

23h 57m1 stop San Francisco

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

18h 19m1 stop San Francisco

$861United Airlines

Sat, Oct 24 - Mon, Nov 9

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

$864United Airlines

Sat, Sep 19 - Tue, Sep 22

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

$864United 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

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

31h 00m1 stop Taipei City Taiwan Taoyuan Intl

$993China Airlines

Sat, Sep 19 - Sat, Oct 3

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

$1,003China Airlines

Wed, Sep 30 - Fri, Oct 9

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

$1,008STARLUX Airlines

Fri, Oct 2 - Fri, Oct 9

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

$1,008STARLUX Airlines

Fri, Oct 2 - Sat, Oct 10

Cheap last minute flights

Enter your travel dates to find the best prices.

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

31h 40m2 stops Seattle/Tacoma Intl Incheon Intl

10:00 pm - 11:55 pmSIN Singapore Changi-ONT Ontario

40h 55m2 stops Incheon Intl Salt Lake City

$836Delta

Mon, Sep 7 - Sat, Oct 17

6:17 am - 5:00 amONT Ontario-SIN Singapore Changi

31h 43m2 stops Seattle/Tacoma Intl Incheon Intl

10:00 pm - 11:55 pmSIN Singapore Changi-ONT Ontario

40h 55m2 stops Incheon Intl Salt Lake City

$836Delta

Sun, Sep 6 - Sun, Oct 11

6:20 am - 11:55 pmONT Ontario-SIN Singapore Changi

26h 35m2 stops Seattle/Tacoma Intl Incheon Intl

7:30 am - 5:12 pmSIN Singapore Changi-ONT Ontario

24h 42m2 stops Incheon Intl Seattle/Tacoma Intl

$836Delta

Thu, Sep 3 - Mon, Oct 19

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

25h 19m1 stop San Francisco

8:45 am - 5:46 pmSIN Singapore Changi-ONT Ontario

24h 01m1 stop San Francisco

$873United Airlines

Sun, Sep 6 - Sat, Oct 10

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

25h 19m1 stop San Francisco

8:45 am - 8:31 pmSIN Singapore Changi-ONT Ontario

26h 46m1 stop San Francisco

$873United Airlines

Sun, Sep 6 - Thu, Oct 15

1:18 pm - 6:15 amONT Ontario-SIN Singapore Changi

25h 57m2 stops Denver Intl San Francisco

8:45 am - 12:18 pmSIN Singapore Changi-ONT Ontario

18h 33m1 stop San Francisco

$878United Airlines

Sun, Sep 6 - Thu, Oct 15

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

$1,008STARLUX Airlines

Sat, Sep 5 - Mon, Sep 14

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

$1,008STARLUX Airlines

Fri, Sep 4 - Fri, Sep 11

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

32h 50m1 stop Taipei City Taiwan Taoyuan Intl

2:00 am - 6:40 pmSIN Singapore Changi-ONT Ontario

31h 40m1 stop Taipei City Taiwan Taoyuan Intl

$1,023China Airlines

Thu, Sep 3 - Sat, Sep 12

12:45 am - 12:30 pmONT Ontario-SIN Singapore Changi

20h 45m1 stop Taipei City Taiwan Taoyuan Intl

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

19h 05m1 stop Taipei City Taiwan Taoyuan Intl

$1,025China Airlines

Sun, Sep 6 - Mon, Oct 19

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China Airlines flights from Ontario to Singapore

Our best China Airlines deals on Ontario to Singapore flight tickets

China Airlines

Sep 20

ONT12:10 amOntario

21h 20m

1 stop

SIN12:30 pmSingapore Changi

Sep 25

SIN1:55 pmSingapore Changi

19h 05m

1 stop

ONT6:00 pmOntario

$1,003

China Airlines

Sep 19

ONT12:10 amOntario

21h 20m

1 stop

SIN12:30 pmSingapore Changi

Oct 3

SIN2:00 amSingapore Changi

31h 00m

1 stop

ONT6:00 pmOntario

$1,014

China Airlines

Sep 15

ONT12:10 amOntario

21h 20m

1 stop

SIN12:30 pmSingapore Changi

Oct 22

SIN1:55 pmSingapore Changi

19h 05m

1 stop

ONT6:00 pmOntario

$1,018

STARLUX Airlines flights from Ontario to Singapore

Our best STARLUX Airlines deals on Ontario to Singapore flight tickets

STARLUX Airlines

Oct 2

ONT11:30 pmOntario

22h 10m

1 stop

SIN12:40 pmSingapore Changi

Oct 10

SIN2:10 pmSingapore Changi

17h 55m

1 stop

ONT5:05 pmOntario

$1,008

STARLUX Airlines

Sep 30

ONT11:30 pmOntario

22h 10m

1 stop

SIN12:40 pmSingapore Changi

Oct 5

SIN2:00 pmSingapore Changi

18h 05m

1 stop

ONT5:05 pmOntario

$1,017

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioSingapore

ONT Ontario - SIN Singapore Changi

ONTSIN

Ontario

Thu 9/17

6:00 am-11:55 pm

2 stops26h 55m

Singapore Changi

Sun 10/18

10:00 pm-5:12 pm

2 stops34h 12m

$836

OntarioSingapore

ONT Ontario - SIN Singapore Changi

ONTSIN

Ontario

Thu 9/17

6:00 am-11:55 pm

2 stops26h 55m

Singapore Changi

Tue 10/20

7:30 am-5:12 pm

2 stops24h 42m

$836

OntarioSingapore

ONT Ontario - SIN Singapore Changi

ONTSIN

Ontario

Tue 9/15

6:00 am-11:55 pm

2 stops26h 55m

Singapore Changi

Sun 10/18

1:25 am-5:12 pm

2 stops30h 47m

$836

OntarioSingapore

ONT Ontario - SIN Singapore Changi

ONTSIN

Ontario

Sat 10/24

4:03 pm-7:00 am

1 stop23h 57m

Singapore Changi

Mon 11/9

10:10 am-12:29 pm

1 stop18h 19m

$861

OntarioSingapore

ONT Ontario - SIN Singapore Changi

ONTSIN

Ontario

Sat 9/19

1:18 pm-6:35 pm

2 stops38h 17m

Singapore Changi

Tue 9/22

8:35 pm-8:01 pm

1 stop38h 26m

$864

OntarioSingapore

ONT Ontario - SIN Singapore Changi

ONTSIN

Ontario

Sat 9/19

1:56 pm-6:35 pm

1 stop37h 39m

Singapore Changi

Tue 9/22

8:35 pm-8:01 pm

1 stop38h 26m

$864

OntarioSingapore

ONT Ontario - SIN Singapore Changi

ONTSIN

Ontario

Sat 9/19

12:10 am-12:30 pm

1 stop21h 20m

Singapore Changi

Sat 10/3

2:00 am-6:00 pm

1 stop31h 00m

$993

OntarioSingapore

ONT Ontario - SIN Singapore Changi

ONTSIN

Ontario

Wed 9/30

12:10 am-12:30 pm

1 stop21h 20m

Singapore Changi

Fri 10/9

1:55 pm-6:00 pm

1 stop19h 05m

$1,003

OntarioSingapore

ONT Ontario - SIN Singapore Changi

ONTSIN

Ontario

Fri 10/2

11:30 pm-12:40 pm

1 stop22h 10m

Singapore Changi

Fri 10/9

2:00 pm-5:05 pm

1 stop18h 05m

$1,008

Quickest round-trip

OntarioSingapore

ONT Ontario - SIN Singapore Changi

ONTSIN

Ontario

Fri 10/2

11:30 pm-12:40 pm

1 stop22h 10m

Singapore Changi

Sat 10/10

2:10 pm-5:05 pm

1 stop17h 55m

$1,008

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 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 $827. The most expensive day to fly to Singapore is Friday, with ticket prices averaging around $930.

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 $869. 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 $1,770 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 8% 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

Best Price Found	$413
Fastest flight time	21h 07m
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 07m

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 21h 07m 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 September 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 (49% of total bookings). The next most popular airlines are United Airlines (34%) and STARLUX Airlines (16%).

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 10,159 reviews	Search United Airlines flights
STARLUX Airlines	PriceFrom $887	Free Cancellation	Rating 8.7 376 reviews	Search STARLUX Airlines flights
China Airlines	PriceFrom $964	Free Cancellation	Rating 8.3 844 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.