ONT - SIN

S$ 525 Find Cheap Flights from Ontario to Singapore – Compare and Save

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Everything you should know

Cheapest return flight
S$ 981
Typical prices: S$ 1,235-S$ 1,753
Delta
Thu 22-11Sun 2-12
ONT - SIN • 2 stops
Cheapest one-way flight
S$ 525
Typical prices: S$ 593-S$ 855
Delta
Sat 6-1
ONT - SIN • 2 stops
Direct flights
Not available
There are currently no direct flights between Ontario and Singapore. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to travel
April
Cheapest • 27% price drop
November
Most popular
Good to know
+1
Good to know
+1
Top stopover airports
San Francisco (SFO)
Cheapest • Avg S$ 1,414 (return)
Taipei City Taiwan Taoyuan Intl (TPE)
Shortest trip • 20h 39m (one-way)
Insights
Insights
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We hope you enjoy your trip to Singapore!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Ontario to Singapore (ONT-SIN)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Ontario to Singapore

Sun, 22 Nov - Fri, 4 Dec
Delta Logo
07:00 - 05:00ONT  Ontario-SIN Singapore Changi
30h 00m2 stops Seattle/Tacoma Intl Incheon Intl
Delta Logo
22:30 - 16:28SIN  Singapore Changi-ONT Ontario
33h 58m2 stops Incheon Intl Salt Lake City
S$ 981Delta
Sun, 15 Nov - Wed, 9 Dec
Korean Air Logo
07:00 - 05:00ONT  Ontario-SIN Singapore Changi
30h 00m2 stops Seattle/Tacoma Intl Incheon Intl
Korean Air Logo
01:40 - 17:15SIN  Singapore Changi-ONT Ontario
31h 35m2 stops Incheon Intl Seattle/Tacoma Intl
S$ 987Korean Air
Fri, 26 Feb - Sat, 6 Mar
Delta Logo
07:00 - 05:00ONT  Ontario-SIN Singapore Changi
30h 00m2 stops Seattle/Tacoma Intl Incheon Intl
Delta Logo
22:30 - 11:07SIN  Singapore Changi-ONT Ontario
52h 37m2 stops Incheon Intl Seattle/Tacoma Intl
S$ 988Delta
Tue, 5 Jan - Sun, 25 Apr
Korean Air Logo
15:30 - 20:25ONT  Ontario-SIN Singapore Changi
36h 55m2 stops Seattle/Tacoma Intl Incheon Intl
Korean Air Logo
01:25 - 17:17SIN  Singapore Changi-ONT Ontario
30h 52m2 stops Incheon Intl Seattle/Tacoma Intl
S$ 992Korean Air
Mon, 11 Jan - Sun, 24 Jan
Korean Air Logo
07:00 - 00:15ONT  Ontario-SIN Singapore Changi
49h 15m2 stops Seattle/Tacoma Intl Incheon Intl
Korean Air Logo
22:30 - 13:57SIN  Singapore Changi-ONT Ontario
31h 27m2 stops Incheon Intl Seattle/Tacoma Intl
S$ 995Korean Air
Sun, 17 Jan - Tue, 26 Jan
Korean Air Logo
07:00 - 00:15ONT  Ontario-SIN Singapore Changi
25h 15m2 stops Seattle/Tacoma Intl Incheon Intl
Korean Air Logo
22:30 - 22:43SIN  Singapore Changi-ONT Ontario
40h 13m2 stops Incheon Intl Seattle/Tacoma Intl
S$ 1,042Korean Air
Tue, 20 Oct - Thu, 22 Oct
Korean Air Logo
06:20 - 05:00ONT  Ontario-SIN Singapore Changi
31h 40m2 stops Seattle/Tacoma Intl Incheon Intl
Korean Air Logo
22:00 - 17:12SIN  Singapore Changi-ONT Ontario
34h 12m2 stops Incheon Intl Seattle/Tacoma Intl
S$ 1,074Korean Air
Sun, 8 Nov - Sun, 15 Nov
Korean Air Logo
06:20 - 05:00ONT  Ontario-SIN Singapore Changi
30h 40m2 stops Seattle/Tacoma Intl Incheon Intl
Korean Air Logo
10:30 - 23:00SIN  Singapore Changi-ONT Ontario
28h 30m2 stops Incheon Intl Seattle/Tacoma Intl
S$ 1,075Korean Air
Sat, 10 Oct - Wed, 14 Oct
Lufthansa Logo
16:03 - 18:35ONT  Ontario-SIN Singapore Changi
35h 32m1 stop San Francisco
Lufthansa Logo
08:45 - 15:22SIN  Singapore Changi-ONT Ontario
21h 37m1 stop San Francisco
S$ 1,083Lufthansa
Tue, 20 Oct - Thu, 22 Oct
United Airlines Logo
08:03 - 18:35ONT  Ontario-SIN Singapore Changi
19h 32m1 stop San Francisco
United Airlines Logo
08:45 - 17:36SIN  Singapore Changi-ONT Ontario
23h 51m1 stop San Francisco
S$ 1,115United Airlines
Booking Insights

Price, demand, and travel trends for Ontario to Singapore flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights from Ontario to Singapore with more confidence.

How much is a return flight from Ontario to Singapore?

Return flights from Ontario to Singapore start at S$ 981. Prices are below average for this route right now, with typical return fares ranging from S$ 1,235 to S$ 1,753. The lowest price found in the past 5 days was S$ 981 on Delta.

What's the cheapest day of the week to fly from Ontario to Singapore?

Tuesday is the cheapest day of the week to fly from Ontario to Singapore and is 10% cheaper than the average day. Thursday is the most expensive day with flight prices 21% higher than average. Based on deals found by KAYAK users in the last 12 months.

Find deals

Key details for Ontario to Singapore flights

Low season

May

Cheapest flight

S$ 525
Best time to beat the crowds but there is an average 21% increase in price.
Most popular time to fly and prices are also 10% lower on average.
Flights from Ontario to Singapore

When to book flights from Ontario to Singapore

Are your dates flexible? Find out the best times to travel from Ontario to Singapore based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price

Your Ontario to Singapore flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines, and booking questions.

  • How long is a flight from Ontario to Singapore?

    A direct flight from Ontario to Singapore takes 0h 00m, covering 22,768 km.

  • Do I need a passport to fly from Ontario to Singapore?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a Ontario to Singapore flight?

    Return flights from Ontario to Singapore range from S$ 1,235 to S$ 1,753, with an average of S$ 1,372 over the past 12 months. Anything below S$ 1,235 counts as a good deal.

  • How are flight prices from Ontario to Singapore looking right now?

    One-way fares from Ontario to Singapore are currently lower than usual. Average one-way flight prices are about S$ 541, which is 22% below the typical average for this route.

  • Which car hire options are available at Singapore Changi Airport (SIN)?

    Singapore Changi Airport (SIN) hosts 5 major car hire companies, with daily rates starting from around S$ 75 for economy cars. Top options include:
    • Avis
    • Sixt
    • Thrifty
    • Hertz
    • Europcar

  • Which airports can I use when flying from Ontario to Singapore?

    Flights from Ontario to Singapore usually depart from Ontario (ONT) and arrive at Singapore Changi (SIN).

  • Which airports do connecting flights from Ontario to Singapore pass through?

    Connecting flights from Ontario to Singapore most commonly pass through:

    • Taipei City Taiwan Taoyuan Intl (TPE) – 63% of one-stop connections
    • San Francisco (SFO) – 37% of one-stop connections
    Together, these airports account for 100% of one-stop bookings on this route.

  • Can I save money by using flexible dates for flights from Ontario to Singapore?

    Yes. Being flexible with your travel dates can save you up to 26% on the Ontario to Singapore route. Tuesday is the cheapest departure day at S$ 1,235 return on average, while Thursday is the most expensive at S$ 1,660, a difference of S$ 425. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • How much time can I save by choosing a different stopover airport from Ontario to Singapore?

    Flying via Taipei City Taiwan Taoyuan Intl (TPE) gives the shortest average 1-stop total travel time of 20h 39m, compared to 21h 00m via San Francisco (SFO).

  • What is the time difference between Ontario and Singapore?

    Singapore is 15 hours ahead of Ontario (Singapore Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Singapore?

    Some of the most popular sights in Singapore are Sentosa, North Bridge Road, and Marina Square. These are among the most viewed places in Singapore on KAYAK.

Your guide to booking Ontario to Singapore flights

Get tips on when to book, when to fly, and what to know before your trip.
  • If your dates are flexible, aim for a Tuesday departure instead of Thursday. On this route, Tuesday flights average S$ 1,235 – about S$ 425 less than Thursday (26% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Ontario to Singapore trip for April. Fares historically average S$ 1,000 return in that month – typically S$ 1,566 less than the most expensive month, which is August (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Singapore Changi Airport.
    - Crowne Plaza Changi Airport by IHG
    - Changi Transit Hotel Terminal 1
    - The Haven by Jetquay

More options for your flight from Ontario to Singapore

Complete your trip to Singapore with a hotel stay or car hire

Car rentals in Singapore
Hotels in Singapore