Cheap Flights from Ontario International to Singapore

Return selected

origin

Enter the city you're flying from, or choose from the options below

Include nearby airports

selected

destination

. Enter your destination, or choose from the options below

Include nearby airports

selected

Travellers and cabin class, 1 Adult, Economy

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 Cheapest month Find the best route Route info FAQs Tips and advice

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 $1,540. Find the lowest prices on one-way and return tickets right here.

Singapore.$1,368 per passenger.Departing Wed, 27 Jan, returning Tue, 23 Feb.Return flight with Korean Air.Outbound indirect flight with Korean Air, departs from Ontario International on Wed, 27 Jan, arriving in Singapore Changi.Inbound indirect flight with Korean Air, departs from Singapore Changi on Tue, 23 Feb, arriving in Ontario International.Price includes taxes and charges.From $1,368, select.

Singapore.$1,488 per passenger.Departing Sun, 17 Jan, returning Tue, 26 Jan.Return flight with Korean Air.Outbound indirect flight with Korean Air, departs from Ontario International on Sun, 17 Jan, arriving in Singapore Changi.Inbound indirect flight with Korean Air, departs from Singapore Changi on Tue, 26 Jan, arriving in Ontario International.Price includes taxes and charges.From $1,488, select.

Singapore.$1,540 per passenger.Departing Thu, 5 Nov, returning Thu, 12 Nov.Return flight with United.Outbound indirect flight with United, departs from Ontario International on Thu, 5 Nov, arriving in Singapore Changi.Inbound indirect flight with United, departs from Singapore Changi on Thu, 12 Nov, arriving in Ontario International.Price includes taxes and charges.From $1,540, select.

Singapore.$1,540 per passenger.Departing Sun, 25 Oct, returning Wed, 4 Nov.Return flight with United.Outbound indirect flight with United, departs from Ontario International on Sun, 25 Oct, arriving in Singapore Changi.Inbound indirect flight with United, departs from Singapore Changi on Wed, 4 Nov, arriving in Ontario International.Price includes taxes and charges.From $1,540, select.

Singapore.$1,549 per passenger.Departing Mon, 1 Mar, returning Mon, 8 Mar.Return flight with United.Outbound indirect flight with United, departs from Ontario International on Mon, 1 Mar, arriving in Singapore Changi.Inbound indirect flight with United, departs from Singapore Changi on Mon, 8 Mar, arriving in Ontario International.Price includes taxes and charges.From $1,549, select.

Singapore.$1,752 per passenger.Departing Thu, 15 Oct, returning Thu, 29 Oct.Return flight with United.Outbound indirect flight with United, departs from Ontario International on Thu, 15 Oct, arriving in Singapore Changi.Inbound indirect flight with United, departs from Singapore Changi on Thu, 29 Oct, arriving in Ontario International.Price includes taxes and charges.From $1,752, select.

Singapore.$1,768 per passenger.Departing Mon, 22 Feb, returning Tue, 2 Mar.Return flight with China Airlines.Outbound indirect flight with China Airlines, departs from Ontario International on Mon, 22 Feb, arriving in Singapore Changi.Inbound indirect flight with China Airlines, departs from Singapore Changi on Tue, 2 Mar, arriving in Ontario International.Price includes taxes and charges.From $1,768, select.

Singapore.$1,773 per passenger.Departing Tue, 13 Apr, returning Thu, 13 May.Return flight with China Airlines.Outbound indirect flight with China Airlines, departs from Ontario International on Tue, 13 Apr, arriving in Singapore Changi.Inbound indirect flight with China Airlines, departs from Singapore Changi on Thu, 13 May, arriving in Ontario International.Price includes taxes and charges.From $1,773, select.

Singapore.$1,776 per passenger.Departing Tue, 6 Apr, returning Tue, 20 Apr.Return flight with China Airlines.Outbound indirect flight with China Airlines, departs from Ontario International on Tue, 6 Apr, arriving in Singapore Changi.Inbound indirect flight with China Airlines, departs from Singapore Changi on Tue, 20 Apr, arriving in Ontario International.Price includes taxes and charges.From $1,776, select.

Singapore.$1,777 per passenger.Departing Wed, 20 Jan, returning Mon, 31 May.Return flight with China Airlines.Outbound indirect flight with China Airlines, departs from Ontario International on Wed, 20 Jan, arriving in Singapore Changi.Inbound indirect flight with China Airlines, departs from Singapore Changi on Mon, 31 May, arriving in Ontario International.Price includes taxes and charges.From $1,777, select.

Singapore.$1,778 per passenger.Departing Thu, 4 Feb, returning Thu, 18 Feb.Return flight with China Airlines.Outbound indirect flight with China Airlines, departs from Ontario International on Thu, 4 Feb, arriving in Singapore Changi.Inbound indirect flight with China Airlines, departs from Singapore Changi on Thu, 18 Feb, arriving in Ontario International.Price includes taxes and charges.From $1,778, select.

Singapore.$1,791 per passenger.Departing Sat, 1 May, returning Tue, 18 May.Return flight with China Airlines.Outbound indirect flight with China Airlines, departs from Ontario International on Sat, 1 May, arriving in Singapore Changi.Inbound indirect flight with China Airlines, departs from Singapore Changi on Tue, 18 May, arriving in Ontario International.Price includes taxes and charges.From $1,791, select.

Singapore.$1,793 per passenger.Departing Sun, 24 Jan, returning Sun, 20 Jun.Return flight with China Airlines.Outbound indirect flight with China Airlines, departs from Ontario International on Sun, 24 Jan, arriving in Singapore Changi.Inbound indirect flight with China Airlines, departs from Singapore Changi on Sun, 20 Jun, arriving in Ontario International.Price includes taxes and charges.From $1,793, select.

Singapore.$1,797 per passenger.Departing Mon, 3 May, returning Thu, 12 Aug.Return flight with China Airlines.Outbound indirect flight with China Airlines, departs from Ontario International on Mon, 3 May, arriving in Singapore Changi.Inbound indirect flight with China Airlines, departs from Singapore Changi on Thu, 12 Aug, arriving in Ontario International.Price includes taxes and charges.From $1,797, select.

Singapore.$1,799 per passenger.Departing Wed, 7 Apr, returning Mon, 7 Jun.Return flight with China Airlines.Outbound indirect flight with China Airlines, departs from Ontario International on Wed, 7 Apr, arriving in Singapore Changi.Inbound indirect flight with China Airlines, departs from Singapore Changi on Mon, 7 Jun, arriving in Ontario International.Price includes taxes and charges.From $1,799, select.

Singapore.$1,809 per passenger.Departing Sun, 21 Mar, returning Sun, 4 Apr.Return flight with China Airlines.Outbound indirect flight with China Airlines, departs from Ontario International on Sun, 21 Mar, arriving in Singapore Changi.Inbound indirect flight with China Airlines, departs from Singapore Changi on Sun, 4 Apr, arriving in Ontario International.Price includes taxes and charges.From $1,809, 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.

Oct

Nov

Dec

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

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 $1,368

Search flights

Ontario to Singapore: Flight information

The things to know before you go.

Cheapest flight found	$1,368
Cheapest month to fly	January

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

How many airports are there in Singapore?

There are 2 airports in Singapore: Seletar and Singapore Changi.

How much are return flights from Ontario International to Singapore?

The best price we found for a return flight from Ontario International to Singapore is $1,368. 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.

Which airlines fly direct from Ontario International to Singapore?

Currently, there are no airlines that fly direct from Ontario International to Singapore. But we found flights with one or more stops from $1,368.

How many flights are there a week from Ontario International to Singapore?

As of October 2026, there are no flights flying from Ontario International to Singapore.

When is the cheapest time to fly from Ontario International to Singapore?

The cheapest month to fly from Ontario International to Singapore is usually January.

Which is the cheapest airport to fly into in Singapore?

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 $1,368.

Which upcoming date is cheapest to fly from Ontario International Airport to Singapore on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Ontario International Airport to Singapore on Wednesday, 27 January 2027.

Can I get a direct flight from Ontario International Airport to Singapore?

No airlines currently offer direct flights between Ontario International Airport and Singapore. Most routes have one or more stops.

How can I get the best flight deal from Ontario International Airport to Singapore?

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.

When is the best time to book flights to Singapore?

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.

What’s the weather like in Singapore?

In October, the average temperature is usually around 28°C. July is typically the warmest month in Singapore, when it usually averages around 29°C. You can expect the least rain in February. The coldest month is January, with temperatures averaging 25°C. The rainiest month is November.

Which is the cheapest airline to fly from Ontario International Airport to Singapore with?

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 $721. The cheapest price for a return flight is $1,368. 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 to 31ºC.
If you want to travel in cooler conditions, look for a cheap ticket from ONT to Singapore in January when temperatures average between 24ºC and 30ºC.

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.