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?

Korean Air, Delta, 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 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.

$409 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 - 5:00 amONT Ontario-SIN Singapore Changi

32h 00m2 stops Seattle/Tacoma Intl Incheon Intl

1:25 am - 10:40 pmSIN Singapore Changi-ONT Ontario

36h 15m2 stops Incheon Intl Seattle/Tacoma Intl

$757Korean Air

Sat, Sep 19 - Mon, Sep 21

7:00 am - 8:25 pmONT Ontario-SIN Singapore Changi

45h 25m2 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

Tue, Jan 19 - Mon, Jan 25

6:00 am - 12:10 amONT Ontario-SIN Singapore Changi

26h 10m2 stops Salt Lake City Incheon Intl

1:35 am - 10:43 pmSIN Singapore Changi-ONT Ontario

37h 08m2 stops Incheon Intl Seattle/Tacoma Intl

$835Delta

Thu, Jan 14 - Sun, Jan 31

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

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

21h 27m1 stop San Francisco

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

18h 33m1 stop San Francisco

$864United Airlines

Sun, Sep 20 - Sun, Oct 4

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

$955STARLUX Airlines

Sat, Sep 5 - Sat, Sep 12

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

$961STARLUX Airlines

Fri, Oct 2 - Fri, Oct 16

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

$984China 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

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

31h 00m1 stop Taipei City Taiwan Taoyuan Intl

$985China Airlines

Sat, Sep 19 - Sat, Oct 3

Cheap last minute flights

Enter your travel dates to find the best prices.

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

32h 00m2 stops Salt Lake City Incheon Intl

7:30 am - 10:40 pmSIN Singapore Changi-ONT Ontario

30h 10m2 stops Incheon Intl Seattle/Tacoma Intl

$835Delta

Thu, Aug 20 - Thu, Sep 17

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

32h 00m2 stops Salt Lake City Incheon Intl

7:30 am - 11:34 pmSIN Singapore Changi-ONT Ontario

31h 04m2 stops Incheon Intl Salt Lake City

$835Delta

Wed, Aug 19 - Sun, Aug 30

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

31h 40m2 stops Seattle/Tacoma Intl Incheon Intl

7:30 am - 11:34 pmSIN Singapore Changi-ONT Ontario

31h 04m2 stops Incheon Intl Salt Lake City

$835Delta

Fri, Aug 21 - Sun, Aug 30

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

$873United Airlines

Thu, Aug 20 - Thu, Sep 17

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

25h 19m1 stop San Francisco

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

24h 26m1 stop San Francisco

$873United Airlines

Wed, Aug 19 - Mon, Sep 14

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

$873United Airlines

Thu, Aug 20 - Sun, Aug 30

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

$961STARLUX Airlines

Sat, Aug 22 - Mon, Aug 31

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

$1,023China Airlines

Thu, Aug 20 - Fri, Aug 28

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

20h 45m1 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

Sat, Aug 22 - Sat, Aug 29

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

21h 45m1 stop Taipei City Taiwan Taoyuan Intl

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

18h 05m1 stop Taipei City Taiwan Taoyuan Intl

$4,947STARLUX Airlines

Sat, Aug 22 - Mon, Oct 5

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United Airlines flights from Ontario to Singapore

Our best United Airlines deals on Ontario to Singapore flight tickets

United Airlines

Sep 19

ONT1:56 pmOntario

37h 39m

1 stop

SIN6:35 pmSingapore Changi

Sep 22

SIN8:35 pmSingapore Changi

38h 26m

1 stop

ONT8:01 pmOntario

$864

United Airlines

Oct 6

ONT8:03 amOntario

19h 32m

1 stop

SIN6:35 pmSingapore Changi

Nov 9

SIN10:10 amSingapore Changi

18h 19m

1 stop

ONT12:29 pmOntario

$868

United Airlines

Aug 31

ONT7:13 pmOntario

20h 02m

1 stop

SIN6:15 amSingapore Changi

Oct 9

SIN8:45 amSingapore Changi

18h 33m

1 stop

ONT12:18 pmOntario

$873

ANA flights from Ontario to Singapore

Our best ANA deals on Ontario to Singapore flight tickets

ANA

Sep 12

ONT6:08 amOntario

21h 27m

1 stop

SIN6:35 pmSingapore Changi

Sep 30

SIN8:45 amSingapore Changi

21h 37m

1 stop

ONT3:22 pmOntario

$925

ANA

Sep 1

ONT1:56 pmOntario

49h 44m

2 stops

SIN6:40 amSingapore Changi

Oct 6

SIN11:05 amSingapore Changi

24h 26m

2 stops

ONT8:31 pmOntario

$952

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioSingapore

ONT Ontario - SIN Singapore Changi

ONTSIN

Ontario

Sat 9/19

6:00 am-5:00 am

2 stops32h 00m

Singapore Changi

Mon 9/21

1:25 am-10:40 pm

2 stops36h 15m

$757

OntarioSingapore

ONT Ontario - SIN Singapore Changi

ONTSIN

Ontario

Tue 1/19

7:00 am-8:25 pm

2 stops45h 25m

Singapore Changi

Mon 1/25

1:35 am-4:12 pm

2 stops30h 37m

$835

OntarioSingapore

ONT Ontario - SIN Singapore Changi

ONTSIN

Ontario

Thu 1/14

6:00 am-12:10 am

2 stops26h 10m

Singapore Changi

Sun 1/31

1:35 am-10:43 pm

2 stops37h 08m

$835

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

Quickest round-trip

OntarioSingapore

ONT Ontario - SIN Singapore Changi

ONTSIN

Ontario

Sun 9/20

6:08 am-6:35 pm

1 stop21h 27m

Singapore Changi

Sun 10/4

8:45 am-12:18 pm

1 stop18h 33m

$864

OntarioSingapore

ONT Ontario - SIN Singapore Changi

ONTSIN

Ontario

Sat 9/5

11:30 pm-12:40 pm

1 stop22h 10m

Singapore Changi

Sat 9/12

2:10 pm-5:05 pm

1 stop17h 55m

$955

OntarioSingapore

ONT Ontario - SIN Singapore Changi

ONTSIN

Ontario

Fri 10/2

11:30 pm-12:40 pm

1 stop22h 10m

Singapore Changi

Fri 10/16

2:00 pm-5:05 pm

1 stop18h 05m

$961

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

$984

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

$985

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 $757.

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 $825. The most expensive day to fly to Singapore is Friday, with ticket prices averaging around $925.

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 $865. 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 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	$409
Fastest flight time	21h 27m
Direct flights	None

The best one-way flight to Singapore from Ontario in the past 72 hours is $409. The best round-trip flight deal from Ontario to Singapore found on momondo in the last 72 hours is $757.

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

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 27m 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 (46% of total bookings). The next most popular airlines are United Airlines (39%) and STARLUX Airlines (14%).

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 10,106 reviews	Search United Airlines flights
STARLUX Airlines	PriceFrom $887	Free Cancellation	Rating 8.8 371 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.