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Cheap flights from Ottawa to London from £213

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ottawa to London departing on 12/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
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Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
05:40 - 21:20
YOW
-
STN
34h 40m
2 stops
Multiple Airlines Logo
06:30 - 00:39
STN
-
YOW
23h 09m
2 stops
£400Multiple Airlines
Mon, 6 Apr - Mon, 20 Apr
Multiple Airlines Logo
05:40 - 21:20
YOW
-
STN
34h 40m
2 stops
Multiple Airlines Logo
06:30 - 00:39
STN
-
YOW
23h 09m
2 stops
£451Multiple Airlines
Mon, 6 Apr - Mon, 13 Apr
Multiple Airlines Logo
18:35 - 23:25
YOW
-
STN
23h 50m
2 stops
Multiple Airlines Logo
06:35 - 20:00
STN
-
YOW
18h 25m
2 stops
£463Multiple Airlines
Sun, 3 May - Sun, 10 May
Multiple Airlines Logo
05:40 - 21:20
YOW
-
STN
34h 40m
2 stops
Multiple Airlines Logo
06:30 - 18:26
STN
-
YOW
16h 56m
2 stops
£470Multiple Airlines
Wed, 1 Apr - Thu, 9 Apr
Multiple Airlines Logo
05:40 - 20:30
YOW
-
STN
33h 50m
3 stops
Multiple Airlines Logo
06:30 - 18:26
STN
-
YOW
16h 56m
2 stops
£476Multiple Airlines
Wed, 1 Apr - Thu, 9 Apr
Multiple Airlines Logo
05:55 - 22:20
YOW
-
STN
35h 25m
2 stops
Multiple Airlines Logo
22:00 - 00:20
STN
-
YOW
31h 20m
3 stops
£483Multiple Airlines
Sun, 3 May - Sun, 10 May
Multiple Airlines Logo
05:55 - 19:20
YOW
-
STN
32h 25m
3 stops
Multiple Airlines Logo
22:50 - 00:20
STN
-
YOW
30h 30m
2 stops
£500Multiple Airlines
Fri, 15 May - Fri, 29 May
Multiple Airlines Logo
10:20 - 00:05
YOW
-
STN
32h 45m
3 stops
Multiple Airlines Logo
07:40 - 09:41
STN
-
YOW
30h 01m
2 stops
£501Multiple Airlines
Thu, 5 Mar - Thu, 12 Mar
Multiple Airlines Logo
05:55 - 19:20
YOW
-
STN
32h 25m
3 stops
Multiple Airlines Logo
14:00 - 17:35
STN
-
YOW
32h 35m
3 stops
£506Multiple Airlines
Fri, 15 May - Fri, 29 May
Multiple Airlines Logo
09:15 - 22:40
YOW
-
STN
32h 25m
3 stops
Multiple Airlines Logo
07:25 - 00:39
STN
-
YOW
45h 14m
3 stops
£508Multiple Airlines
Mon, 16 Feb - Mon, 16 Mar

momondo Fare Finder

 
Customise your flight search to find flights from Ottawa to London Stansted Airport that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 279,928 searches. Data last updated 4 February 2026.
Use the filters below to find and compare flights from Ottawa to London Stansted Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

OttawaLondon

YOW - STN

YOWSTN

Ottawa

Mon 6/4

05:40-21:20

2 stops34h 40m

London Stansted

Mon 20/4

06:30-00:39

2 stops23h 09m

£400

OttawaLondon

YOW - STN

YOWSTN

Ottawa

Mon 6/4

05:40-21:20

2 stops34h 40m

London Stansted

Mon 13/4

06:30-00:39

2 stops23h 09m

£451

OttawaLondon

YOW - STN

YOWSTN

Ottawa

Sun 3/5

18:35-23:25

2 stops23h 50m

London Stansted

Sun 10/5

06:35-20:00

2 stops18h 25m

£463

OttawaLondon

YOW - STN

YOWSTN

Ottawa

Wed 1/4

05:40-21:20

2 stops34h 40m

London Stansted

Thu 9/4

06:30-18:26

2 stops16h 56m

£470

OttawaLondon

YOW - STN

YOWSTN

Ottawa

Wed 1/4

05:40-20:30

3 stops33h 50m

London Stansted

Thu 9/4

06:30-18:26

2 stops16h 56m

£476

OttawaLondon

YOW - STN

YOWSTN

Ottawa

Sun 3/5

05:55-22:20

2 stops35h 25m

London Stansted

Sun 10/5

22:00-00:20

3 stops31h 20m

£483

OttawaLondon

YOW - STN

YOWSTN

Ottawa

Fri 15/5

05:55-19:20

3 stops32h 25m

London Stansted

Fri 29/5

22:50-00:20

2 stops30h 30m

£500

OttawaLondon

YOW - STN

YOWSTN

Ottawa

Thu 5/3

10:20-00:05

3 stops32h 45m

London Stansted

Thu 12/3

07:40-09:41

2 stops30h 01m

£501

OttawaLondon

YOW - STN

YOWSTN

Ottawa

Fri 15/5

05:55-19:20

3 stops32h 25m

London Stansted

Fri 29/5

14:00-17:35

3 stops32h 35m

£506

OttawaLondon

YOW - STN

YOWSTN

Ottawa

Mon 16/2

09:15-22:40

3 stops32h 25m

London Stansted

Mon 16/3

07:25-00:39

3 stops45h 14m

£508

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

When to book flights from Ottawa to London Stansted Airport

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

Cheap Ottawa to London Stansted Airport (YOW to STN) flight deals and tips

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

Fastest flight time

18h 00m

Direct flights

None
The fastest flight from Ottawa to London Stansted Airport takes 18h 00m
There are no direct flights from Ottawa to London Stansted Airport. There are no popular flight routes from Ottawa to London Stansted Airport.
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  • How far is Ottawa to London Stansted by plane?

    The distance between Ottawa and London Stansted is about 3332.5 mi. 18h 00m is a normal flight duration for this route.

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

    Prices for flights from Ottawa Airport to London Stansted Airport are refreshed on a daily basis.

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ottawa Airport to London Stansted Airport.

  • What documentation or ID do you need to fly to London Stansted Airport?

    The travel and health documents required for your trip to London Stansted Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at London Stansted Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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

    Price Alerts will notify you by email when the price for flights to London Stansted Airport from Ottawa 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 Ottawa to London Stansted Airport with momondo?

    With “Price Forecast”, learn how soon you should book your flight in advance. Down to the day of week and time of day, our information can inform you on the ideal time to book to save on your travel. Our “Price Calendar” shows you at a quick glance when to book your travel for lower rates. By setting “Price Alerts” you can monitor changes in price and target the ideal time to book. Search for your trip destination by budget amount via our “Explore” feature. Whether you’re looking for ideas for your next travel adventure or cost-cutting tips, our “Discover” content is a great place to start.

  • 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.

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Eastbourne
Milton Keynes
Luton
Gatwick
Maidstone
Slough
Southend-on-Sea
Canterbury
Ipswich
Ilford
Guildford
Chelmsford
Hayes
Dover
Folkestone
Bedford
Colchester
Wembley
Worthing
Ramsgate

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to London from Ottawa.

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

momondo does allow users to show only those flights to London from Ottawa which offer a flexible booking policy as well as other useful filters and features.

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

Once all potential Ottawa to London flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Yes. momondo can track prices for Ottawa to London flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your London Stansted Airport trip

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