How do I get Price Alerts for flights from London Stansted Airport to Ontario?

Price Alerts will notify you by email when the price for flights to Ontario from London Stansted Airport decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.

How can I save money on flights from London Stansted Airport to Ontario with momondo?

By using tools like our “Price Calendar”, you can see the best days for return flights on your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.

How does momondo find its flight prices?

We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

When did momondo last update prices for flights from London Stansted Airport to Ontario Airport?

Prices for flights from London Stansted Airport to Ontario Airport are updated daily.

How old do you have to be to fly from London Stansted Airport to Ontario Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from London Stansted Airport to Ontario Airport.

What documentation or ID do you need to fly to Ontario Airport?

The travel and health documents you'll need for your trip to Ontario Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Ontario Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

£391 Cheap Flights from London Stansted Airport to Ontario in 2026/27

Find the cheapest flights from London Stansted Airport to Los Angeles

Return

One-way

Cheap return flights

Enter your travel dates to find the best prices.

08:15 - 23:51STN London Stansted-ONT Ontario

23h 36m3 stops Kastrup Copenhagen Reykjavik Keflavik Intl Denver Intl

12:01 - 23:50ONT Ontario-STN London Stansted

27h 49m3 stops San Francisco Lisbon Humberto Delgado Madrid Barajas

£687Multiple Airlines

Wed, 11 Nov - Fri, 13 Nov

08:15 - 23:51STN London Stansted-ONT Ontario

23h 36m3 stops Kastrup Copenhagen Reykjavik Keflavik Intl Denver Intl

06:30 - 14:05ONT Ontario-STN London Stansted

23h 35m3 stops Denver Intl Reykjavik Keflavik Intl Dublin

£902Multiple Airlines

Tue, 3 Nov - Tue, 17 Nov

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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

Wed 11/11

08:15-23:51

3 stops23h 36m

Ontario

Fri 13/11

12:01-23:50

3 stops27h 49m

£687

Fastest return journey

LondonOntario

STN London Stansted - ONT Ontario

STNONT

London Stansted

Tue 3/11

08:15-23:51

3 stops23h 36m

Ontario

Tue 17/11

06:30-14:05

3 stops23h 35m

£902

Cheapest one-way

LondonOntario

STN London Stansted - ONT Ontario

STNONT

London Stansted

Mon 30/11

21:35-22:58

3 stops57h 23m

£391

LondonOntario

STN London Stansted - ONT Ontario

STNONT

London Stansted

Fri 4/12

19:15-23:23

3 stops36h 08m

£412

LondonOntario

STN London Stansted - ONT Ontario

STNONT

London Stansted

Sun 1/11

07:45-20:30

3 stops43h 45m

£418

Fastest single journey

LondonOntario

STN London Stansted - ONT Ontario

STNONT

London Stansted

Wed 11/11

08:15-23:51

3 stops23h 36m

£427

LondonOntario

STN London Stansted - ONT Ontario

STNONT

London Stansted

Wed 11/11

08:15-23:51

3 stops23h 36m

£442

LondonOntario

STN London Stansted - ONT Ontario

STNONT

London Stansted

Wed 11/11

08:15-23:51

3 stops23h 36m

£443

LondonOntario

STN London Stansted - ONT Ontario

STNONT

London Stansted

Wed 11/11

08:15-23:51

3 stops23h 36m

£445

LondonOntario

STN London Stansted - ONT Ontario

STNONT

London Stansted

Tue 10/11

08:15-23:51

3 stops23h 36m

£447

Flights are sorted by cheapest return flights first.

Showing 1-10 of 12 resultsSorted by cheapest first

When to book flights from London Stansted Airport to Ontario

Are you open to changing your travel dates? Check out the ideal times to fly from London Stansted Airport to Ontario according to our flight data. Find out which month and days have the cheapest flights.

Estimated return price

Cheap London Stansted Airport to Ontario (STN to ONT) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London Stansted Airport to Ontario

Best price found	£391
Direct flights	None

The best one-way flight to Ontario from London Stansted Airport in the past 72 hours is £391. The best return flight deal from London Stansted Airport to Ontario found on momondo in the last 72 hours is £687.

There are no direct flights from London Stansted Airport to Ontario. There are no popular flight routes from London Stansted Airport to Ontario.

Search flight deals

Frequently asked questions about flying from London Stansted Airport to Ontario

How far is London Stansted to Ontario by plane?
A flight from London Stansted to Ontario will travel around 5411.4 mi.
When did momondo last update prices for flights from London Stansted Airport to Ontario Airport?
Prices for flights from London Stansted Airport to Ontario Airport are updated daily.
How old do you have to be to fly from London Stansted Airport to Ontario Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from London Stansted Airport to Ontario Airport.
What documentation or ID do you need to fly to Ontario Airport?
The travel and health documents you'll need for your trip to Ontario Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Ontario Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Frequently asked questions about flying from London Stansted Airport to Ontario

How do I get Price Alerts for flights from London Stansted Airport to Ontario?
Price Alerts will notify you by email when the price for flights to Ontario from London Stansted Airport decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.
How can I save money on flights from London Stansted Airport to Ontario with momondo?
By using tools like our “Price Calendar”, you can see the best days for return flights on your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.
How does momondo find its flight prices?
We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

Why use momondo?

Why should I use momondo to find a flight deal from London to Ontario?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from London to Ontario. momondo saves you time and could save you money on your trip.

Can I find flights from London to Ontario with flexible booking policies on momondo?

Yes. All flights to Ontario from London on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from London to Ontario?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from London to Ontario.

I’m not ready to book a flight from London to Ontario right now. Can momondo alert me if prices change?

Price alerts on flights to Ontario from London are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.