In terms of precipitation, rainfall in Ontario ranges from 3.0 - 86.0 inches per month. February is typically the wettest month, when rainfall can reach 86.0 mm. June is typically the driest time to visit Ontario when rainfall is around 3.0 mm.

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 26.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 12.0 C).

What is the cheapest time of day to fly from STN to ONT?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from London Stansted Airport to Ontario as you normally would.

What airport do you fly into for flights to Ontario from London Stansted?

Ontario (ONT), located 3.1 mi from the city center, is the airport you fly into when you book flights from London Stansted to Ontario. 0 airlines have flights to Ontario from London Stansted on a regular basis. Booking flights from London Stansted to Ontario should not be difficult; the airport handles an average of 0 inbound flights from London Stansted per day.

Can I find deals for flights from Stansted to Ontario that include hotel bookings?

Yes. In addition to deals on Stansted to Ontario flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Stansted to Ontario?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Stansted to Ontario.

Can I find deals for business class flights from Stansted to Ontario?

Yes. Cheapflights offers flight deals from Stansted to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£315+ Cheap Flights from London Stansted Airport to Ontario

Cheap flight deals from Stansted to Ontario

Enter your travel dates to find the best prices.

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Best

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One-way

Cheapest flights from Stansted to Ontario
Explore the most affordable flight options available from Stansted to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 31 October 2026.

Thu 26/1107:20 -

3 stops24h 54m

Thu 10/1206:00 -

3 stops23h 35m

Deal found 28/10£656

Thu 26/1107:20 -

3 stops24h 54m

Wed 9/1206:00 -

3 stops23h 35m

Deal found 28/10£663

Wed 25/1108:15 -

3 stops23h 59m

Wed 2/1206:00 -

3 stops23h 35m

Deal found 28/10£674

Tue 17/1108:15 -

3 stops23h 36m

Mon 23/1108:15 -

3 stops24h 50m

Deal found 26/10£802

Tue 10/1108:15 -

3 stops23h 36m

Wed 11/1110:35 -

3 stops21h 00m

Deal found 28/10£917

Find flight deals from Stansted to Ontario

Round-trip from	£656
One-way from	£315
Popular in	December
Cheapest in	February
Average price	£492

26/11-10/12
6 total stops
48h 29m total
London to Ontario

Search Deals

11/12-31/12
3 total stops
39h 53m total
London to Ontario

Search Deals

Highest demand for flights based on searches. 1% potential increase in price (£6 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease (£5 potential savings vs. average return price).

Search Deals

Average for round-trip flights in October 2026

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from London Stansted Airport to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonOntario

STN London Stansted - ONT Ontario

STNONT

London Stansted

Fri 11/12

15:30-23:23

3 stops39h 53m

Ontario

Wed 31/12

00:00-09:00

Nonstop0h 00m

£315

LondonOntario

STN London Stansted - ONT Ontario

STNONT

London Stansted

Thu 12/11

19:10-19:30

3 stops32h 20m

Ontario

Wed 31/12

00:00-09:00

Nonstop0h 00m

£451

LondonOntario

STN London Stansted - ONT Ontario

STNONT

London Stansted

Sun 22/11

08:15-00:14

3 stops23h 59m

Ontario

Wed 31/12

00:00-09:00

Nonstop0h 00m

£454

LondonOntario

STN London Stansted - ONT Ontario

STNONT

London Stansted

Wed 18/11

08:15-23:51

3 stops23h 36m

Ontario

Wed 31/12

00:00-09:00

Nonstop0h 00m

£459

Fastest return journey

LondonOntario

STN London Stansted - ONT Ontario

STNONT

London Stansted

Wed 2/12

08:15-22:20

3 stops22h 05m

Ontario

Wed 31/12

00:00-09:00

Nonstop0h 00m

£479

LondonOntario

STN London Stansted - ONT Ontario

STNONT

London Stansted

Sun 8/11

21:30-19:30

3 stops30h 00m

Ontario

Wed 31/12

00:00-09:00

Nonstop0h 00m

£488

LondonOntario

STN London Stansted - ONT Ontario

STNONT

London Stansted

Wed 25/11

08:15-00:14

3 stops23h 59m

Ontario

Wed 31/12

00:00-09:00

Nonstop0h 00m

£495

LondonOntario

STN London Stansted - ONT Ontario

STNONT

London Stansted

Tue 17/11

08:15-23:51

3 stops23h 36m

Ontario

Wed 31/12

00:00-09:00

Nonstop0h 00m

£500

LondonOntario

STN London Stansted - ONT Ontario

STNONT

London Stansted

Sat 12/12

08:15-23:23

2 stops23h 08m

Ontario

Wed 31/12

00:00-09:00

Nonstop0h 00m

£565

LondonOntario

STN London Stansted - ONT Ontario

STNONT

London Stansted

Tue 10/11

08:15-23:51

3 stops23h 36m

Ontario

Wed 31/12

00:00-09:00

Nonstop0h 00m

£604

Flights are sorted by cheapest return flights first.

Deals found on 29/10

Showing 1-10 of 13 resultsSorted by cheapest first

Best time to book a flight from Stansted to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Stansted with our price prediction graph.

STN-ONT

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

What airport do you fly into for flights to Ontario from London Stansted?
Ontario (ONT), located 3.1 mi from the city center, is the airport you fly into when you book flights from London Stansted to Ontario. 0 airlines have flights to Ontario from London Stansted on a regular basis. Booking flights from London Stansted to Ontario should not be difficult; the airport handles an average of 0 inbound flights from London Stansted per day.
Can I find deals for flights from Stansted to Ontario that include hotel bookings?
Yes. In addition to deals on Stansted to Ontario flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Stansted to Ontario?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Stansted to Ontario.
Can I find deals for business class flights from Stansted to Ontario?
Yes. Cheapflights offers flight deals from Stansted to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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How does Cheapflights help users find flights from Stansted to Ontario?

When you search for this flight from Stansted to Ontario, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Stansted to Ontario?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Stansted to Ontario for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Stansted to Ontario with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Stansted to Ontario, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Stansted to Ontario become cheaper?

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Cheap flights from London Stansted Airport to Ontario from £315

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/12. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Stansted to Ontario

Cheapest flights from Stansted to OntarioExplore the most affordable flight options available from Stansted to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 31 October 2026.

Explore the most affordable flight options available from Stansted to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 31 October 2026.

Best flights from Stansted to OntarioDiscover carefully curated flight deals from Stansted to Ontario that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 31 October 2026.

Discover carefully curated flight deals from Stansted to Ontario that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 31 October 2026.

Last-minute flights from Stansted to OntarioDiscover last-minute flight deals from Stansted to Ontario. Data last updated 31 October 2026 and is based on user searches.

Discover last-minute flight deals from Stansted to Ontario. Data last updated 31 October 2026 and is based on user searches.

One-way flights from Stansted to OntarioSearch for one-way flight options from Stansted to Ontario. Find affordable one-way fares based on user searches. Data last updated 31 October 2026.

Search for one-way flight options from Stansted to Ontario. Find affordable one-way fares based on user searches. Data last updated 31 October 2026.

Find flight deals from Stansted to Ontario

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Cheapflights Fare Finder

Use the filters below to find and compare flights from London Stansted Airport to Ontario that are best for you.

Best time to book a flight from Stansted to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Stansted with our price prediction graph.

Related info for your journey

What airport do you fly into for flights to Ontario from London Stansted?

Can I find deals for flights from Stansted to Ontario that include hotel bookings?

How can I find direct flights from Stansted to Ontario?

Can I find deals for business class flights from Stansted to Ontario?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Stansted to Ontario

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Ontario by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to California

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Search flights from Stansted to Ontario by cabin class

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Other flights to Ontario

Explore flights to Ontario departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 31 October 2026.

Stansted and Ontario flights

Browse other Stansted and Ontario flight options. Last updated on 31 October 2026.

Other flights from Stansted

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How does Cheapflights help users find flights from Stansted to Ontario?

Why should you use Cheapflights to find cheap flight tickets from Stansted to Ontario?

Can Cheapflights find flights from Stansted to Ontario with no change fees?

Can Cheapflights notify me if prices for flights from Stansted to Ontario become cheaper?

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Cheapest flights from Stansted to Ontario
Explore the most affordable flight options available from Stansted to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 31 October 2026.

Best flights from Stansted to Ontario
Discover carefully curated flight deals from Stansted to Ontario that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 31 October 2026.

Last-minute flights from Stansted to Ontario
Discover last-minute flight deals from Stansted to Ontario. Data last updated 31 October 2026 and is based on user searches.

One-way flights from Stansted to Ontario
Search for one-way flight options from Stansted to Ontario. Find affordable one-way fares based on user searches. Data last updated 31 October 2026.