This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 17/11. Fares are subject to change and may not be available on all flights or dates of travel.
LON — YOW
13 Nov — 20 Nov1
Return
1 adult
Economy
Return
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from London to Ottawa are usually found in June or September, booked 54 days in advance, depart on a Friday or Sunday and return on a Friday
Cheap flight deals from London to Ottawa
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Cheapest flights from London to Ottawa
Explore the most affordable flight options available from London to Ottawa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 October 2026.
Wed 21/1012:40 -
1 stop11h 10m
Sun 25/1019:35 -
1 stop11h 45m
Deal found 12/10£505
Wed 11/1111:40 -
2 stops31h 50m
Wed 18/1106:10 -
2 stops22h 35m
Deal found 12/10£508
Fri 27/1111:40 -
2 stops30h 34m
Fri 4/1206:10 -
2 stops22h 35m
Deal found 13/10£515
Wed 4/1111:55 -
2 stops16h 45m
Tue 10/1107:00 -
2 stops22h 55m
Deal found 9/10£523
Sun 8/1111:55 -
2 stops16h 45m
Sun 15/1110:15 -
2 stops19h 40m
Deal found 11/10£525
Thu 22/1016:40 -
1 stop12h 14m
Mon 26/1015:10 -
1 stop14h 00m
Deal found 12/10£531
Fri 27/1111:40 -
1 stop17h 57m
Fri 4/1212:50 -
1 stop15h 55m
Deal found 13/10£536
Thu 19/1111:40 -
1 stop11h 12m
Wed 2/1212:50 -
1 stop15h 55m
Deal found 12/10£540
Thu 26/1111:40 -
1 stop15h 22m
Thu 3/1217:40 -
1 stop11h 05m
Deal found 12/10£542
Tue 20/1008:45 -
2 stops20h 09m
Tue 27/1015:10 -
2 stops15h 40m
Deal found 9/10£542
Sun 25/1009:00 -
1 stop14h 08m
Wed 28/1018:10 -
1 stop13h 10m
Deal found 12/10£543
Tue 13/1010:50 -
2 stops18h 04m
Tue 20/1006:05 -
2 stops19h 50m
Deal found 9/10£547
Best flights from London to Ottawa
Discover carefully curated flight deals from London to Ottawa that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 14 October 2026.
Fri 11/1209:30 -
2 stops34h 37m
Sun 13/1215:10 -
2 stops34h 30m
Deal found 12/10£548
Thu 19/1111:40 -
2 stops30h 34m
Wed 2/1206:10 -
2 stops22h 35m
Deal found 12/10£555
Thu 19/1110:00 -
2 stops18h 40m
Wed 2/1217:10 -
1 stop10h 50m
Deal found 12/10£593
Thu 5/1110:00 -
1 stop10h 00m
Wed 5/517:10 -
1 stop17h 50m
Deal found 9/10£600
Mon 26/1016:45 -
1 stop27h 15m
Sun 29/1117:10 -
1 stop17h 35m
Deal found 12/10£637
Sat 14/1111:40 -
1 stop11h 12m
Tue 17/1107:00 -
1 stop21h 45m
Deal found 11/10£638
Thu 5/1113:25 -
Nonstop7h 55m
Mon 3/519:05 -
1 stop9h 55m
Deal found 9/10£664
Fri 25/1210:40 -
2 stops20h 00m
Fri 15/118:10 -
2 stops34h 40m
Deal found 12/10£927
Mon 26/1012:05 -
2 stops29h 06m
Sun 29/1109:45 -
2 stops22h 15m
Deal found 12/10£570
Thu 5/1110:00 -
1 stop10h 00m
Tue 4/517:10 -
1 stop17h 50m
Deal found 9/10£600
Thu 22/1017:50 -
1 stop11h 30m
Wed 28/1018:25 -
1 stop18h 10m
Deal found 11/10£616
Tue 15/1216:20 -
2 stops25h 51m
Tue 5/115:10 -
1 stop25h 10m
Deal found 13/10£572
Fri 23/1009:40 -
Nonstop8h 00m
Tue 3/1117:45 -
1 stop11h 00m
Deal found 10/10£644
Tue 3/1111:10 -
1 stop12h 35m
Mon 3/518:55 -
Nonstop6h 35m
Deal found 9/10£667
Tue 8/1216:20 -
2 stops25h 51m
Tue 15/1215:10 -
1 stop12h 15m
Deal found 13/10£572
Fri 6/1122:25 -
2 stops23h 55m
Fri 13/1112:10 -
2 stops23h 55m
Deal found 9/10£634
Sat 24/1017:00 -
1 stop28h 00m
Fri 27/1117:10 -
1 stop10h 50m
Deal found 11/10£732
Tue 3/1115:00 -
1 stop13h 55m
Wed 5/521:00 -
Nonstop6h 35m
Deal found 9/10£667
Wed 25/1112:05 -
1 stop12h 22m
Wed 2/1206:00 -
2 stops19h 40m
Deal found 11/10£573
Mon 19/1012:40 -
1 stop12h 20m
Fri 6/1117:45 -
1 stop11h 00m
Deal found 10/10£873
Tue 20/1007:40 -
2 stops17h 20m
Wed 21/1014:35 -
3 stops16h 00m
Deal found 12/10£845
Thu 26/1112:45 -
1 stop14h 11m
Thu 3/1215:10 -
1 stop14h 15m
Deal found 12/10£702
Sat 17/1009:40 -
1 stop15h 20m
Tue 3/1112:50 -
1 stop15h 55m
Deal found 10/10£973
Mon 26/1006:45 -
3 stops21h 59m
Sun 29/1117:40 -
2 stops14h 10m
Deal found 12/10£909
Sat 24/1006:50 -
2 stops20h 45m
Mon 2/1114:00 -
2 stops16h 15m
Deal found 10/10£752
Thu 22/1010:20 -
2 stops19h 00m
Thu 29/1005:30 -
2 stops33h 55m
Deal found 11/10£939
Thu 19/1117:20 -
2 stops34h 12m
Wed 2/1210:50 -
2 stops24h 30m
Deal found 12/10£939
Mon 21/1208:20 -
2 stops20h 20m
Thu 31/1214:00 -
3 stops16h 40m
Deal found 9/10£980
Fri 13/1117:20 -
2 stops37h 20m
Fri 27/1109:00 -
2 stops26h 20m
Deal found 9/10£1,060
Mon 19/1007:00 -
2 stops13h 10m
Mon 26/1019:50 -
2 stops17h 15m
Deal found 9/10£1,110
Direct flights from London to Ottawa
Explore direct flight options from London to Ottawa based on user searches, and compare prices and availability for your desired travel dates. Data last updated 14 October 2026.
Fri 16/1009:40 -
Nonstop8h 00m
Fri 23/1019:40 -
Nonstop7h 15m
Deal found 9/10£556
Sat 7/1111:10 -
Nonstop7h 55m
Sat 14/1118:50 -
Nonstop6h 40m
Deal found 9/10£636
Mon 28/1209:00 -
Nonstop8h 05m
Sun 10/109:15 -
Nonstop6h 45m
Deal found 10/10£637
Thu 29/1013:25 -
Nonstop7h 55m
Thu 5/1121:40 -
Nonstop6h 40m
Deal found 9/10£639
Thu 26/1113:25 -
Nonstop7h 55m
Thu 3/1221:40 -
Nonstop6h 40m
Deal found 12/10£641
Mon 23/1111:10 -
Nonstop7h 55m
Mon 30/1118:50 -
Nonstop6h 40m
Deal found 8/10£643
Mon 23/1111:10 -
Nonstop7h 55m
Mon 30/1118:50 -
Nonstop6h 40m
Deal found 9/10£647
Mon 23/1111:10 -
Nonstop7h 55m
Mon 30/1118:50 -
Nonstop6h 40m
Deal found 9/10£655
Thu 29/1013:25 -
Nonstop7h 55m
Sat 7/1118:50 -
Nonstop6h 40m
Deal found 11/10£657
Last-minute flights from London to Ottawa
Discover last-minute flight deals from London to Ottawa. Data last updated 14 October 2026 and is based on user searches.
Tue 13/1010:50 -
2 stops18h 04m
Tue 20/1006:05 -
2 stops19h 50m
Deal found 9/10£547
Tue 20/1008:45 -
2 stops20h 09m
Tue 27/1015:10 -
2 stops15h 40m
Deal found 9/10£542
Wed 21/1012:40 -
1 stop11h 10m
Sun 25/1019:35 -
1 stop11h 45m
Deal found 12/10£505
Thu 22/1016:40 -
1 stop12h 14m
Mon 26/1015:10 -
1 stop14h 00m
Deal found 12/10£531
Sun 25/1009:00 -
1 stop14h 08m
Wed 28/1018:10 -
1 stop13h 10m
Deal found 12/10£543
Wed 4/1111:55 -
2 stops16h 45m
Tue 10/1107:00 -
2 stops22h 55m
Deal found 9/10£523
Sun 8/1111:55 -
2 stops16h 45m
Sun 15/1110:15 -
2 stops19h 40m
Deal found 11/10£525
Wed 11/1111:40 -
2 stops31h 50m
Wed 18/1106:10 -
2 stops22h 35m
Deal found 12/10£508
Thu 19/1111:40 -
1 stop11h 12m
Wed 2/1212:50 -
1 stop15h 55m
Deal found 12/10£540
Thu 26/1111:40 -
1 stop15h 22m
Thu 3/1217:40 -
1 stop11h 05m
Deal found 12/10£542
Fri 27/1111:40 -
2 stops30h 34m
Fri 4/1206:10 -
2 stops22h 35m
Deal found 13/10£515
Fri 27/1111:40 -
1 stop17h 57m
Fri 4/1212:50 -
1 stop15h 55m
Deal found 13/10£536
One-way flights from London to Ottawa
Search for one-way flight options from London to Ottawa. Find affordable one-way fares based on user searches. Data last updated 14 October 2026.
Tue 17/1107:55 -
3 stops59h 37m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 10/10£307
Wed 25/1116:45 -
2 stops49h 29m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 11/10£317
Wed 2/1208:05 -
3 stops44h 35m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 11/10£320
Wed 2/1216:45 -
2 stops49h 25m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 11/10£321
Wed 25/1108:35 -
3 stops44h 05m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 11/10£321
Wed 18/1108:30 -
3 stops59h 02m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 10/10£335
Tue 24/1108:20 -
3 stops35h 12m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 12/10£337
Sun 15/1108:20 -
3 stops57h 52m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 13/10£344
Mon 30/1122:35 -
3 stops54h 05m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 10/10£345
Wed 25/1114:50 -
1 stop37h 50m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 12/10£355
Thu 26/1114:50 -
1 stop27h 24m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 11/10£356
Mon 9/1114:50 -
1 stop27h 24m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 9/10£357
Find flight deals from London to Ottawa
Discover tips and strategies to find the most affordable flight options for your journey from London (LON) to Ottawa (YOW). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 14 October 2026.
Customise your flight search to find flights from London to Ottawa 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, Cheapflights users made 7,457,451 searches. Data last updated 14 October 2026.
Use the filters below to find and compare flights from London to Ottawa that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
Cheapest return flight
LondonOttawa
STN London Stansted - YOW Ottawa
STNYOW
London Stansted
Tue 17/11
07:55-14:32
3 stops59h 37m
Ottawa
Wed 31/12
00:00-06:00
Nonstop0h 00m
£307
LondonOttawa
LGW London Gatwick - YOW Ottawa
LGWYOW
London Gatwick
Wed 2/12
16:45-13:10
2 stops49h 25m
Ottawa
Wed 31/12
00:00-06:00
Nonstop0h 00m
£323
LondonOttawa
STN London Stansted - YOW Ottawa
STNYOW
London Stansted
Wed 2/12
10:05-23:40
3 stops42h 35m
Ottawa
Wed 31/12
00:00-06:00
Nonstop0h 00m
£327
LondonOttawa
STN London Stansted - YOW Ottawa
STNYOW
London Stansted
Wed 18/11
08:30-14:32
3 stops59h 02m
Ottawa
Wed 31/12
00:00-06:00
Nonstop0h 00m
£335
LondonOttawa
STN London Stansted - YOW Ottawa
STNYOW
London Stansted
Mon 16/11
20:40-14:32
3 stops46h 52m
Ottawa
Wed 31/12
00:00-06:00
Nonstop0h 00m
£358
LondonOttawa
STN London Stansted - YOW Ottawa
STNYOW
London Stansted
Tue 10/11
08:15-14:32
3 stops59h 17m
Ottawa
Wed 31/12
00:00-06:00
Nonstop0h 00m
£364
LondonOttawa
LHR London Heathrow - YOW Ottawa
LHRYOW
London Heathrow
Mon 30/11
09:55-23:40
3 stops42h 45m
Ottawa
Wed 31/12
00:00-06:00
Nonstop0h 00m
£366
LondonOttawa
LGW London Gatwick - YOW Ottawa
LGWYOW
London Gatwick
Mon 16/11
16:45-18:09
3 stops54h 24m
Ottawa
Wed 31/12
00:00-06:00
Nonstop0h 00m
£380
Fastest return journey
LondonOttawa
LGW London Gatwick - YOW Ottawa
LGWYOW
London Gatwick
Wed 2/12
10:00-15:00
1 stop10h 00m
Ottawa
Wed 31/12
00:00-06:00
Nonstop0h 00m
£394
LondonOttawa
LGW London Gatwick - YOW Ottawa
LGWYOW
London Gatwick
Wed 2/12
10:00-15:00
1 stop10h 00m
Ottawa
Wed 31/12
00:00-06:00
Nonstop0h 00m
£394
Flights are sorted by cheapest return flights first.
Deals found on 10/10
Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
6
Best time to book a flight from London to Ottawa
Have a flexible travel schedule? Discover the best time to fly to Ottawa from London with our price prediction graph.
LON-YOW
STN-YOW
LGW-YOW
LHR-YOW
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.
Cheapflights Insights
Everything you need to know about your flight from London to Ottawa
LON-YOW
STN-YOW
LGW-YOW
LHR-YOW
What is the cheapest month to book a flight from London to Ottawa?
Currently, June is the cheapest month in which you can book a flight from London to Ottawa (average of £449). Flying from London to Ottawa in December is currently the most expensive (average of £668). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from LON to YOW?
Find hourly flight availability from London to Ottawa. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 14 October 2026.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from London to Ottawa as you normally would.
How much does it cost for a return flight from London to Ottawa?
Airfare is typical for this route at the moment.
London to Ottawa flights typically cost between £404 and £589 in November.The cheapest return price found within the last 5 days was £505 on Air Canada (14 Nov–21 Nov).
What’s the top stopover airport for flights from London to Ottawa?
Share of one-stop return flights from London to Ottawa chosen by Cheapflights users in the past 12 months, using the same stopover each way.
Paris (CDG) – chosen by Cheapflights users on 59% of one-stop itineraries from London to Ottawa on Cheapflights.
What’s the cheapest stopover airport for flights from London to Ottawa?
Average return fare for one-stop flights from London to Ottawa, chosen by Cheapflights users in the past 12 months, with the same stopover each way.
Paris (CDG) is the most affordable one-stop option, with an average return flight price of £497.
What’s the fastest stopover option from London to Ottawa?
Shortest average travel time for one-stop one-way flights from London to Ottawa, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.
Flights via Montreal (YUL) have the shortest average one-way travel time for one-stop routes: 9h 59m.
Which airport typically offers the quickest stopover for flights from London to Ottawa?
Average stopover duration for one-stop one-way flights from London to Ottawa, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Washington, D.C. (IAD) offer the fastest connection on this route, with an average stopover time of 1h 25m.
How often are flights from London to Ottawa delayed?
About 11% of weekly flights between London and Ottawa have experienced delays in the past year, with the average delay time being 192 minutes.
What is the most punctual flight time for London to Ottawa flights?
Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the morning tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Wednesday tends to have the lowest number of delays on this route, whereas Tuesday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on London to Ottawa flights?
Over the past year, Air Canada have had the lowest number of delays on this route, with just 11% of flights being delayed.
How far ahead should I book a flight from London to Ottawa?
To ensure you get the cheapest price possible for a flight from London to Ottawa, you should look to book at least 74 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
Reviews of airlines servicing Ottawa
Get insights into the airlines that provide service to Ottawa. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ottawa. Reviews last updated 14 October 2026.
Check out reviews from past customers who have flown with Air Transat,Air France, andVirgin Atlantic from London to Ottawa to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
To and from Glasgow with Air Transat. Excellent flights, food, service. Nothing but praise.
Related info for your journey
Find useful and relevant information for your journey from London to Ottawa. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
What airport do you fly into for flights to Ottawa from London?
If you book a flight to Ottawa from London, you will be flying to Ottawa, which is the city’s only airport. Ottawa (YOW) is located 6.6 mi from the center of Ottawa. There is 1 flight from London to Ottawa per day from 6 different airlines.
How long is the flight from London to Ottawa?
United Airlines, Air France, and KLM can get you from London to Ottawa in just under 10h. Your travel time can differ by up to 24h 37m. Airlines will cover a distance of 3340 mi. This flight may include one or multiple stops.
What are the cheapest airlines flying from London to Ottawa round-trip?
Air Transat, at £345, was found to be the cheapest airline from London to Ottawa.Alternate airlines flying return to your destination include Air France and Air Canada. Users have found that Air Transat is 36% cheaper than the other options available to this destination.
What are the cheapest airlines to fly from London to Ottawa one-way?
For one-way options, check prices for Air Transat. According to our data, you can fly for as low as £211. Users have also found prices from £295 and £482 on Virgin Atlantic and Lufthansa, respectively.
What are the most popular routes from London to Ottawa?
When deciding which route to take from London to Ottawa consider London Heathrow - Ottawa, London Gatwick - Ottawa or London City - Ottawa as they are the most popular.
What are the most reliable airlines from London to Ottawa?
Consider Aegean Airlines (88%), Air Canada (83%) or Austrian Airlines (83%) when booking your flight. These represent the most reliable airlines when flying from London to Ottawa.
What are the cheapest flights from London to Ottawa?
Looking for the cheapest flight from London to Ottawa? While on average our users pay £1,126, our data indicates the cheapest price to be £350. The most popular route (London Heathrow - Ottawa), is priced around £505.
Can I find deals for business class flights from London to Ottawa?
Yes. Cheapflights offers flight deals from London to Ottawa by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from London to Ottawa?
Currently, June is the cheapest month in which you can book a flight from London to Ottawa (average of £449). Flying from London to Ottawa in December is currently the most expensive (average of £668). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Book flights to Ottawa if you plan to visit one of these locations
Gatineau
Brockville
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Fly from London to Ottawa on these airlines
Choose from the following airlines for your flight from London to Ottawa. Flights are based on user searches made on Cheapflights and were last updated on 14 October 2026.
Explore flights to Ottawa departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 14 October 2026.
Discover the top 6 airlines that operate flights from London to Ottawa. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated 14 October 2026.
Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from London to Ottawa?
Cheapflights makes it easy to find London to Ottawa flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.
Why should you use Cheapflights to find cheap flight tickets from London to Ottawa?
Cheapflights helps you find that perfect flight to Ottawa from London by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!
Can Cheapflights find flights from London to Ottawa with no change fees?
Users can book flights with no change fees policies with our dedicated filters. Book flights from London to Ottawa flexibly with Cheapflights today.
Can Cheapflights notify me if prices for flights from London to Ottawa become cheaper?
Not ready to book yet? You can track prices for flights from London to Ottawa on Cheapflights with our Price Alert feature and get notified when better prices are available.
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