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Cheap flight tickets from Ontario International to Singapore

Compare Ontario International to Singapore flight deals

Find the cheapest month or even day of the year to fly to Singapore

Book the best Singapore fare with no extra fees

Flight deals from Ontario International to Singapore

Looking for a cheap last-minute deal or the best return flight from Ontario International Airport to Singapore? If you want to travel next month, return fares start from RM5,975. Find the lowest prices on one-way and return tickets right here.
Singapore.RM1,732 per passenger.Departing Thu, 7 Jan.One-way flight with Korean Air.Outbound indirect flight with Korean Air, departs from Ontario International on Thu, 7 Jan, arriving in Singapore Changi.Price includes taxes and charges.From RM1,732, select.
Singapore.RM1,736 per passenger.Departing Mon, 15 Feb.One-way flight with Korean Air.Outbound indirect flight with Korean Air, departs from Ontario International on Mon, 15 Feb, arriving in Singapore Changi.Price includes taxes and charges.From RM1,736, select.
Singapore.RM1,736 per passenger.Departing Wed, 16 Sep.One-way flight with Delta.Outbound indirect flight with Delta, departs from Ontario International on Wed, 16 Sep, arriving in Singapore Changi.Price includes taxes and charges.From RM1,736, select.
Singapore.RM1,741 per passenger.Departing Thu, 22 Oct.One-way flight with Korean Air.Outbound indirect flight with Korean Air, departs from Ontario International on Thu, 22 Oct, arriving in Singapore Changi.Price includes taxes and charges.From RM1,741, select.
Singapore.RM1,743 per passenger.Departing Sat, 13 Mar.One-way flight with Korean Air.Outbound indirect flight with Korean Air, departs from Ontario International on Sat, 13 Mar, arriving in Singapore Changi.Price includes taxes and charges.From RM1,743, select.
Singapore.RM1,745 per passenger.Departing Tue, 28 Jul.One-way flight with Korean Air.Outbound indirect flight with Korean Air, departs from Ontario International on Tue, 28 Jul, arriving in Singapore Changi.Price includes taxes and charges.From RM1,745, select.
Singapore.RM1,747 per passenger.Departing Thu, 31 Dec.One-way flight with Korean Air.Outbound indirect flight with Korean Air, departs from Ontario International on Thu, 31 Dec, arriving in Singapore Changi.Price includes taxes and charges.From RM1,747, select.
Singapore.RM1,748 per passenger.Departing Tue, 24 Nov.One-way flight with Korean Air.Outbound indirect flight with Korean Air, departs from Ontario International on Tue, 24 Nov, arriving in Singapore Changi.Price includes taxes and charges.From RM1,748, select.
Singapore.RM1,943 per passenger.Departing Wed, 12 Aug.One-way flight with Korean Air.Outbound indirect flight with Korean Air, departs from Ontario International on Wed, 12 Aug, arriving in Singapore Changi.Price includes taxes and charges.From RM1,943, select.
Singapore.RM2,110 per passenger.Departing Tue, 5 May.One-way flight with United.Outbound indirect flight with United, departs from Ontario International on Tue, 5 May, arriving in Singapore Changi.Price includes taxes and charges.From RM2,110, select.
Singapore.RM2,950 per passenger.Departing Tue, 13 Apr.One-way flight with China Airlines.Outbound indirect flight with China Airlines, departs from Ontario International on Tue, 13 Apr, arriving in Singapore Changi.Price includes taxes and charges.From RM2,950, select.
Singapore.RM3,209 per passenger.Departing Tue, 30 Jun.One-way flight with Korean Air.Outbound indirect flight with Korean Air, departs from Ontario International on Tue, 30 Jun, arriving in Singapore Changi.Price includes taxes and charges.From RM3,209, select.
Singapore.RM4,091 per passenger.Departing Thu, 30 Apr.One-way flight with Alaska Airlines.Outbound indirect flight with Alaska Airlines, departs from Ontario International on Thu, 30 Apr, arriving in Singapore Changi.Price includes taxes and charges.From RM4,091, select.

Find the cheapest month to fly from Ontario International to Singapore

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Ontario International to Singapore flights are currently cheapest in January.
May
from RM2,110
Jun
from RM3,209
Jul
from RM1,745
Aug
from RM1,943
Sep
from RM1,736
Oct
from RM1,741
Nov
from RM1,748
Dec
from RM1,747
Jan
from RM1,732
Feb
from RM1,736
Mar
from RM1,743
Apr
from RM2,950

Alternative Ontario International to Singapore routes

Looking for the cheapest, fastest or easiest route from Ontario International to Singapore? You could fly into the following airports instead.

Seletar

14km from central Singapore
Closest
Search flights

Singapore Changi

18km from central Singapore
Cheapest
from RM1,732
Search flights

Ontario to Singapore: Flight information

The things to know before you go.
Cheapest flight foundRM1,732
Cheapest month to flyJanuary

Finding cheap flights from Ontario International to Singapore: Frequently asked questions

There are 2 airports in Singapore: Seletar and Singapore Changi.
The best price we found for a return flight from Ontario International to Singapore is RM3,710. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Ontario International to Singapore. But we found flights with one or more stops from RM3,710.
As of May 2026, there are no flights flying from Ontario International to Singapore.
The cheapest month to fly from Ontario International to Singapore is usually January.
If you're flying from Ontario International Airport, the cheapest airport near Singapore is Singapore Changi – which is 17.9 km away from the centre of Singapore. We've found flights into this airport from RM3,710.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Ontario International Airport to Singapore on Monday, 4 January 2027.
No airlines currently offer direct flights between Ontario International Airport and Singapore. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Singapore but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Singapore is around 40 days in advance, so don’t leave your flight to the last minute.
In May, the average temperature is usually around 28°C. May is typically the warmest month in Singapore, when it usually averages around 30°C. You can expect the least rain in February. The coldest month is December, with temperatures averaging 25°C. The rainiest month is December.
Currently, Korean Air offers the cheapest flight tickets to Singapore.

Flying from Ontario International Airport (ONT) to Singapore: what you need to know

  • Singapore is 15 hours ahead of Ontario, where Ontario International Airport is located. Singapore observes the UTC+8 timezone.

  • For a stress-free journey, arrive at the airport two hours ahead of international flights and an hour before domestic departures. That way, you can comfortably board your ONT to Singapore flight.

  • Travelling during a peak period like a bank holiday? Expect longer lines at security and check-in. To give yourself peace of mind, arrive up to four hours before international flights and two hours before domestic departures.

  • Stopovers are the ideal opportunity to break up your journey and possibly even explore another city. When searching for flight tickets from ONT to Singapore, deselect the 'Direct flights only' box to see where you can stop along the way. Some popular options include:

    • Seattle-Tacoma International Airport (SEA)

    • San Francisco International Airport (SFO)

    • Taiwan Taoyuan International Airport (TPE)

  • The journey from central Ontario to ONT takes about 1 hour 30 minutes on public transport. If you ride-share, drive or get a cab, you'll cover the 5 kilometres in 10 minutes or so, depending on traffic.

  • Want a leisurely start to your holiday? Stay near ONT. Whether you have an early flight from Ontario International Airport to Singapore or just don't want to be rushed, these hotels have you covered:

  • Ontario International Airport maintains a solid on-time record, so you're unlikely to face delays. Departures from ONT land at their destination as scheduled 83.6% of the time.

  • The address for ONT is 2900 E. Airport Drive.

How to find the cheapest flights from Ontario International Airport (ONT) to Singapore

  • RM1,732 is the cheapest price we've found for a one-way Ontario International Airport to Singapore flight. A round-trip flight ticket right now is RM3,710. Depending on the availability when you book, these fares may change.

  • Booking early is often the key to scoring a cheap flight from ONT to Singapore. Fares tend to rise as demand increases, so the closer your departure date, the more you'll likely pay.

  • If you can be flexible with your travel dates, check out the 'Whole month' tool. It'll find the cheapest price across every month when looking for your Ontario International Airport to Singapore ticket.

  • You don't need to keep checking in to see if fares have dropped when you create a Price Alert. We'll let you know as soon as there's an even better deal on cheap flights from ONT to Singapore.

  • Choose your preferred departure and arrival times, number of stops and airlines with our filters. Then, sort the results for your flight from Ontario International Airport to Singapore by 'Cheapest,' 'Best' or 'Fastest.'

Airports in Singapore

Changi International Airport (SIN)

  • Changi International Airport (SIN) to central Singapore takes about 20 minutes to reach by car. The centre is roughly 21 kilometres away.

  • If you're travelling on public transport, expect a journey time of about 1 hour.

  • The last thing you need is a long journey to your hotel if you're arriving on a late flight from Ontario International Airport to Singapore. Reserve one of these accommodation options near SIN instead:

  • Follow your own route with a Changi International Airport rental car. Pick up a set of wheels from Avis, Sixt or Green Motion and discover more of Singapore and beyond.

  • To secure the lowest price, book your vehicle from Changi International Airport around two weeks in advance of your flight from ONT to Singapore.

Seletar Airport (XSP)

  • Seletar Airport (XSP) is about 19 kilometres from the centre of Singapore. After your flight from Ontario International Airport to Singapore, it'll take you around 25 minutes to reach the heart of the city in a cab or ride-share.

  • Travelling by public transport will take around 1 hour 25 minutes.

  • You'll find some comfortable places to drop your things at near XSP. Tuck yourself in and get cosy after your ONT to Singapore flight at one of these well-located options:

Best time to go to Singapore

  • Carefully consider your dates before booking your flight from Ontario International Airport to Singapore. The city buzzes in high season, but rates are typically higher and major attractions can be busy. Go to Singapore in the off-season if you want a quieter vibe.

  • Before locking in your Ontario International Airport to Singapore flight ticket, think about the kind of weather forecast you're hoping for. May is the warmest month in Singapore, with temperatures ranging from 25ºC (77ºF) to 31ºC (88ºF).

  • Search for cheap tickets from ONT to Singapore in January if you want to travel in cooler conditions. Temperatures are at their lowest then, ranging between 24ºC (75ºF) and 30ºC (86ºF) on average.

More about Singapore

  • Start your Singapore trip right by choosing the perfect place to stay. As soon as you've booked your flight from Ontario International Airport to Singapore, explore our selection of accommodation options including:

  • Every great holiday has to include a little sightseeing. Gardens by the Bay, Marina Bay Sands and Universal Studios Singapore are essential stops on your Singapore itinerary.

Plan the rest of your trip from Ontario to Singapore

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.