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723 € Cheap Flights 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 737 €. Find the lowest prices on one-way and return tickets right here.
Singapore.723 € per passenger.Departing Thu, 3 Sep, returning Tue, 8 Sep.Return flight with Korean Air.Outbound indirect flight with Korean Air, departs from Ontario International on Thu, 3 Sep, arriving in Singapore Changi.Inbound indirect flight with Korean Air, departs from Singapore Changi on Tue, 8 Sep, arriving in Ontario International.Price includes taxes and charges.From 723 €, select.
Singapore.737 € per passenger.Departing Tue, 18 Aug, returning Thu, 27 Aug.Return flight with Korean Air.Outbound indirect flight with Korean Air, departs from Ontario International on Tue, 18 Aug, arriving in Singapore Changi.Inbound indirect flight with Korean Air, departs from Singapore Changi on Thu, 27 Aug, arriving in Ontario International.Price includes taxes and charges.From 737 €, select.
Singapore.737 € per passenger.Departing Thu, 1 Oct, returning Thu, 8 Oct.Return flight with Korean Air.Outbound indirect flight with Korean Air, departs from Ontario International on Thu, 1 Oct, arriving in Singapore Changi.Inbound indirect flight with Korean Air, departs from Singapore Changi on Thu, 8 Oct, arriving in Ontario International.Price includes taxes and charges.From 737 €, select.
Singapore.769 € per passenger.Departing Tue, 10 Nov, returning Tue, 17 Nov.Return flight with United.Outbound indirect flight with United, departs from Ontario International on Tue, 10 Nov, arriving in Singapore Changi.Inbound indirect flight with United, departs from Singapore Changi on Tue, 17 Nov, arriving in Ontario International.Price includes taxes and charges.From 769 €, select.
Singapore.818 € per passenger.Departing Wed, 13 Jan, returning Fri, 29 Jan.Return flight with Korean Air.Outbound indirect flight with Korean Air, departs from Ontario International on Wed, 13 Jan, arriving in Singapore Changi.Inbound indirect flight with Korean Air, departs from Singapore Changi on Fri, 29 Jan, arriving in Ontario International.Price includes taxes and charges.From 818 €, select.
Singapore.921 € per passenger.Departing Thu, 20 Aug, returning Sun, 6 Sep.Return flight with China Airlines.Outbound indirect flight with China Airlines, departs from Ontario International on Thu, 20 Aug, arriving in Singapore Changi.Inbound indirect flight with China Airlines, departs from Singapore Changi on Sun, 6 Sep, arriving in Ontario International.Price includes taxes and charges.From 921 €, select.
Singapore.922 € per passenger.Departing Sat, 19 Sep, returning Thu, 1 Oct.Return flight with China Airlines.Outbound indirect flight with China Airlines, departs from Ontario International on Sat, 19 Sep, arriving in Singapore Changi.Inbound indirect flight with China Airlines, departs from Singapore Changi on Thu, 1 Oct, arriving in Ontario International.Price includes taxes and charges.From 922 €, select.
Singapore.977 € per passenger.Departing Mon, 15 Feb, returning Fri, 19 Feb.Return flight with China Airlines.Outbound indirect flight with China Airlines, departs from Ontario International on Mon, 15 Feb, arriving in Singapore Changi.Inbound indirect flight with China Airlines, departs from Singapore Changi on Fri, 19 Feb, arriving in Ontario International.Price includes taxes and charges.From 977 €, select.
Singapore.977 € per passenger.Departing Mon, 15 Mar, returning Sun, 28 Mar.Return flight with China Airlines.Outbound indirect flight with China Airlines, departs from Ontario International on Mon, 15 Mar, arriving in Singapore Changi.Inbound indirect flight with China Airlines, departs from Singapore Changi on Sun, 28 Mar, arriving in Ontario International.Price includes taxes and charges.From 977 €, select.
Singapore.978 € per passenger.Departing Tue, 3 Nov, returning Tue, 8 Dec.Return flight with China Airlines.Outbound indirect flight with China Airlines, departs from Ontario International on Tue, 3 Nov, arriving in Singapore Changi.Inbound indirect flight with China Airlines, departs from Singapore Changi on Tue, 8 Dec, arriving in Ontario International.Price includes taxes and charges.From 978 €, select.
Singapore.978 € per passenger.Departing Mon, 22 Mar, returning Tue, 6 Apr.Return flight with China Airlines.Outbound indirect flight with China Airlines, departs from Ontario International on Mon, 22 Mar, arriving in Singapore Changi.Inbound indirect flight with China Airlines, departs from Singapore Changi on Tue, 6 Apr, arriving in Ontario International.Price includes taxes and charges.From 978 €, select.
Singapore.979 € per passenger.Departing Tue, 2 Feb, returning Tue, 9 Mar.Return flight with China Airlines.Outbound indirect flight with China Airlines, departs from Ontario International on Tue, 2 Feb, arriving in Singapore Changi.Inbound indirect flight with China Airlines, departs from Singapore Changi on Tue, 9 Mar, arriving in Ontario International.Price includes taxes and charges.From 979 €, select.
Singapore.980 € per passenger.Departing Tue, 1 Dec, returning Mon, 14 Dec.Return flight with China Airlines.Outbound indirect flight with China Airlines, departs from Ontario International on Tue, 1 Dec, arriving in Singapore Changi.Inbound indirect flight with China Airlines, departs from Singapore Changi on Mon, 14 Dec, arriving in Ontario International.Price includes taxes and charges.From 980 €, select.
Singapore.981 € per passenger.Departing Tue, 24 Nov, returning Sun, 24 Jan.Return flight with China Airlines.Outbound indirect flight with China Airlines, departs from Ontario International on Tue, 24 Nov, arriving in Singapore Changi.Inbound indirect flight with China Airlines, departs from Singapore Changi on Sun, 24 Jan, arriving in Ontario International.Price includes taxes and charges.From 981 €, select.
Singapore.981 € per passenger.Departing Mon, 19 Oct, returning Thu, 12 Nov.Return flight with China Airlines.Outbound indirect flight with China Airlines, departs from Ontario International on Mon, 19 Oct, arriving in Singapore Changi.Inbound indirect flight with China Airlines, departs from Singapore Changi on Thu, 12 Nov, arriving in Ontario International.Price includes taxes and charges.From 981 €, select.
Singapore.981 € per passenger.Departing Fri, 29 Jan, returning Fri, 26 Feb.Return flight with China Airlines.Outbound indirect flight with China Airlines, departs from Ontario International on Fri, 29 Jan, arriving in Singapore Changi.Inbound indirect flight with China Airlines, departs from Singapore Changi on Fri, 26 Feb, arriving in Ontario International.Price includes taxes and charges.From 981 €, 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 September.
Jul
Find prices
Aug
from 737 €
Sep
from 723 €
Oct
from 737 €
Nov
from 769 €
Dec
from 980 €
Jan
from 818 €
Feb
from 977 €
Mar
from 977 €
Apr
from 984 €
May
from 984 €
Jun
from 1.311 €

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 723 €
Search flights

Ontario to Singapore: Flight information

The things to know before you go.
Cheapest flight found723 €
Cheapest month to flySeptember

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 723 €. 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 723 €.
As of July 2026, there are no flights flying from Ontario International to Singapore.
The cheapest month to fly from Ontario International to Singapore is usually September.
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 723 €.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Ontario International Airport to Singapore on Thursday, 3 September 2026.
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 July, the average temperature is usually around 27°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.

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

  • Ontario International Airport is located in Ontario. Based in the UTC+8 timezone, Singapore is 16 hours ahead of Ontario.

  • To avoid rushing for your ONT to Singapore flight, leave plenty of time for things like baggage drop and finding your gate. Turning up two hours ahead of international departures and an hour before domestic flights is the general rule.

  • Be prepared for longer lines during popular months such as July. Arriving up to four hours ahead of an international flight and two hours for domestic departures is a wise move.

  • We make it a breeze to book plane tickets from ONT to Singapore with a stopover. To see all the options, uncheck 'Direct flights only.' Next, pick a flight with a stop long enough to see the sights of your chosen city. Well-traveled stopover hubs include:

    • Seattle-Tacoma International Airport (SEA)

    • San Francisco International Airport (SFO)

    • Taiwan Taoyuan International Airport (TPE)

  • The journey from central Ontario to ONT takes around 45 minutes by public transport. If you drive, ride-share or take a taxi, you'll cover the 5 kilometres in 15 minutes or so, depending on traffic conditions.

  • Looking for a hotel close to ONT? If you've booked an early flight from Ontario International Airport to Singapore, these accommodation options put the terminal practically at your doorstep:

  • Ontario International Airport gets high marks for its on-time performance. 83% of flights that depart ONT reach their destination on time.

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

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

  • The best price we've found for a one-way Ontario International Airport to Singapore flight is 362 €. The cheapest price for a return flight is 723 €. Bear in mind fares can change due to availability at the time of booking.

  • To find cheap flights from ONT to Singapore, book as early as you can. Airlines typically offer the most competitive fares when tickets are first released.

  • The 'Whole month' tool will show you the cheapest tickets from Ontario International Airport to Singapore across every month. It's a good way to find a bargain if your travel plans are flexible.

  • Finding a cheap flight from ONT to Singapore is easy with Price Alerts. All you need to do is set up one of these automatic notifications and we'll let you know when a new discount appears.

  • Choose your ideal 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 'Best,' 'Fastest' or 'Cheapest.'

Airports in Singapore

Singapore Changi Airport (SIN)

  • Singapore Changi Airport (SIN) is around 19 kilometres from central Singapore. If you're opting for a ride-share or a taxi, the drive takes roughly 25 minutes.

  • Travelling on public transport will take you around 40 minutes.

  • Book a hotel near SIN if you have a late flight from Ontario International Airport to Singapore. Check in to one of these options and make your arrival easier:

  • To get the lowest price, reserve your vehicle from Singapore Changi Airport around two weeks ahead of your flight from ONT to Singapore.

Seletar Airport (XSP)

  • If you're staying in central Singapore (or just want to see the sights straight away), the city is around 14 kilometres from Seletar Airport (XSP). Look for any information kiosks to help direct you after hopping off your flight from Ontario International Airport to Singapore.

  • Hang up the 'Do not disturb' sign and unwind at a hotel close to XSP. Here are a few options where you can check in after your ONT to Singapore flight:

Best time to go to Singapore

  • December is the quietest month for flights from Ontario International Airport to Singapore, while February is the busiest. Work out the ideal time to go to Singapore based on whether you want a laid-back vibe or a lively atmosphere.

  • Before booking a Ontario International Airport to Singapore plane 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).

  • If you want to travel in cooler conditions, look for a cheap ticket from ONT to Singapore in January when temperatures average between 24ºC (75ºF) and 30ºC (86ºF).

More about Singapore

  • Start your Singapore trip off on the right foot by choosing the ideal place to stay. Once you've booked your flight from Ontario International Airport to Singapore, browse our range of accommodation options including:

  • Every great holiday has to include a little sightseeing. Marina Bay Sands Hotel Infinity Pool, Marina Bay Sands and Gardens by the Bay are must-visits when exploring Singapore.

Plan the rest of your trip from Ontario to Singapore

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.