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Ottawa

$556+ Cheap flights from London (LON) to Ottawa (YOW)

LON — YOW
Dec 4 — Dec 111
Fri 12/4
Fri 12/11
1 adult, Economy
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Find cheap flights from London to Ottawa with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.
Cheapflights Tip: The best prices from London to Ottawa are usually found in June or September, booked 54 days in advance, depart on a Sunday or Tuesday and return on a Friday

Cheap flight deals from London to Ottawa

Cheapest flights from London to Ottawa

Sat 11/146:35 am -
2 stops17h 52m
Wed 11/186:00 am -
2 stops19h 40m
Deal found 11/2$733
Sat 11/77:30 am -
2 stops19h 26m
Sat 11/146:00 am -
2 stops19h 40m
Deal found 10/31$734
Sat 12/56:50 am -
2 stops35h 21m
Sat 12/126:00 am -
2 stops23h 50m
Deal found 11/3$736
Sat 11/214:40 pm -
2 stops31h 47m
Sun 12/133:10 pm -
2 stops34h 30m
Deal found 11/1$743
Fri 11/2011:40 am -
1 stop25h 27m
Sun 12/612:50 pm -
1 stop15h 55m
Deal found 11/2$747
Thu 12/2412:05 pm -
2 stops30h 06m
Sun 1/103:10 pm -
2 stops20h 10m
Deal found 11/2$763
Thu 12/244:20 pm -
2 stops25h 51m
Tue 1/59:45 am -
2 stops29h 50m
Deal found 11/2$767
Thu 12/34:20 pm -
2 stops25h 51m
Thu 12/103:10 pm -
1 stop14h 15m
Deal found 11/3$768
Sat 11/711:40 am -
1 stop15h 22m
Sat 11/1412:50 pm -
1 stop15h 55m
Deal found 10/31$773
Fri 11/2011:40 am -
1 stop11h 12m
Sat 12/1210:15 am -
1 stop18h 30m
Deal found 11/2$774
Tue 12/154:20 pm -
2 stops25h 51m
Tue 12/2212:10 pm -
2 stops14h 45m
Deal found 10/31$775
Sat 12/511:40 am -
1 stop18h 01m
Sat 12/1210:15 am -
1 stop18h 30m
Deal found 11/3$788

Find flight deals from London to Ottawa

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$733
(United Airlines)

One-way from

$556
(BusinessClass)

Popular in

December

Cheapest in

June

Average price

$766
Provider with most accurate pricing for London (LON)-Ottawa flight deals.
Search Deals
Provider most trusted by Cheapflights users for London (LON)-Ottawa flights.
Search Deals
From London (LON) to Ottawa
Search Deals
One-way flight from London (LON) to Ottawa
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($76 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($17 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2026
Search Deals

Cheapflights Fare Finder

 
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 round-trip

LondonOttawa

LHR London Heathrow - YOW Ottawa

LHRYOW

London Heathrow

Fri 1/15

11:45 am-11:40 pm

2 stops16h 55m

Ottawa

Wed 12/31

12:00 am-6:00 am

Nonstop0h 00m

$561

LondonOttawa

LHR London Heathrow - YOW Ottawa

LHRYOW

London Heathrow

Tue 1/19

10:00 am-11:40 pm

2 stops18h 40m

Ottawa

Wed 12/31

12:00 am-6:00 am

Nonstop0h 00m

$561

LondonOttawa

LHR London Heathrow - YOW Ottawa

LHRYOW

London Heathrow

Tue 4/13

2:45 pm-11:40 pm

2 stops13h 55m

Ottawa

Wed 12/31

12:00 am-6:00 am

Nonstop0h 00m

$564

LondonOttawa

LHR London Heathrow - YOW Ottawa

LHRYOW

London Heathrow

Mon 4/12

2:45 pm-11:40 pm

2 stops13h 55m

Ottawa

Wed 12/31

12:00 am-6:00 am

Nonstop0h 00m

$564

LondonOttawa

LGW London Gatwick - YOW Ottawa

LGWYOW

London Gatwick

Wed 12/23

4:45 pm-3:00 pm

1 stop27h 15m

Ottawa

Wed 12/31

12:00 am-6:00 am

Nonstop0h 00m

$579

LondonOttawa

LHR London Heathrow - YOW Ottawa

LHRYOW

London Heathrow

Wed 12/23

2:45 pm-3:00 pm

1 stop29h 15m

Ottawa

Wed 12/31

12:00 am-6:00 am

Nonstop0h 00m

$580

LondonOttawa

LGW London Gatwick - YOW Ottawa

LGWYOW

London Gatwick

Wed 12/23

10:10 am-5:56 pm

3 stops36h 46m

Ottawa

Wed 12/31

12:00 am-6:00 am

Nonstop0h 00m

$632

LondonOttawa

LHR London Heathrow - YOW Ottawa

LHRYOW

London Heathrow

Wed 12/23

6:30 pm-2:32 pm

3 stops49h 02m

Ottawa

Wed 12/31

12:00 am-6:00 am

Nonstop0h 00m

$639

LondonOttawa

LGW London Gatwick - YOW Ottawa

LGWYOW

London Gatwick

Sun 1/17

11:40 am-12:49 am

1 stop18h 09m

Ottawa

Wed 12/31

12:00 am-6:00 am

Nonstop0h 00m

$669

LondonOttawa

LHR London Heathrow - YOW Ottawa

LHRYOW

London Heathrow

Tue 1/5

11:45 am-11:40 pm

2 stops16h 55m

Ottawa

Wed 12/31

12:00 am-6:00 am

Nonstop0h 00m

$671

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/3

Showing 1-10 of 37 resultsSorted by cheapest first
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Compare providers for flights from London to Ottawa

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from London to Ottawa in November.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy2 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
Trip.comPrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on London-Ottawa flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on London-Ottawa flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from London-Ottawa flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on London-Ottawa flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for London-Ottawa flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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.
Estimated round-trip price

Cheapflights Insights

Everything you need to know about your flight from London to Ottawa

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 $594). Flying from London to Ottawa in December is currently the most expensive (average of $907). 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?

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 to fly round-trip from London to Ottawa?

Airfare is typical for this route at the moment.
London to Ottawa flights typically cost between $690 and $985 in November.
The cheapest round-trip price found within the last 5 days was $733 on United Airlines (Nov 14-Nov 18).

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 last 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

Read through reviews of airlines operating flights from London to Ottawa, such as Air Transat,Air Canada, andLufthansa. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Air Transat
7.7
Good
584 reviews

Comfort

7.3

Boarding

7.9

Entertainment

7.0

Crew

8.5

Overall

7.7

Food

6.7

Reviews

1 / 20
10.0
Excellent

Liam,Jun 2025

GLA - YYZ

To and from Glasgow with Air Transat. Excellent flights, food, service. Nothing but praise.
Air Transat
7.7
Good
584 reviews
Air Transat
7.7
Good
584 reviews

Comfort

7.3

Boarding

7.9

Entertainment

7.0

Crew

8.5

Overall

7.7

Food

6.7

Reviews

1 / 20
10.0
Excellent

Liam,Jun 2025

GLA - YYZ

To and from Glasgow with Air Transat. Excellent flights, food, service. Nothing but praise.
Air Canada
7.1
Good
11,859 reviews
Air Transat
7.7
Good
584 reviews

Comfort

7.3

Boarding

7.9

Entertainment

7.0

Crew

8.5

Overall

7.7

Food

6.7

Reviews

1 / 20
10.0
Excellent

Liam,Jun 2025

GLA - YYZ

To and from Glasgow with Air Transat. Excellent flights, food, service. Nothing but praise.
Lufthansa
6.8
Okay
8,297 reviews
Air Transat
7.7
Good
584 reviews

Comfort

7.3

Boarding

7.9

Entertainment

7.0

Crew

8.5

Overall

7.7

Food

6.7

Reviews

1 / 20
10.0
Excellent

Liam,Jun 2025

GLA - YYZ

To and from Glasgow with Air Transat. Excellent flights, food, service. Nothing but praise.

Related info for your journey

  • What airport do you fly into for flights to Ottawa from London?

    Ottawa (YOW) is the airport you will fly into if you book a flight from London to Ottawa. You should not have trouble finding flights to Ottawa from London; the airport handles an average of 1 inbound flight from London per day. You should also have plenty of airline options to choose from since 1 airline has flights to the Ottawa airport from London. It is only a 6.6 mi journey from Ottawa (YOW) to Ottawa’s city center.

  • How long is the flight from London to Ottawa?

    For as low as $774, United Airlines can have you in Ottawa from London in 11h 12m. There are 3340 mi between London and Ottawa. This flight may include one or multiple stops.

  • What is the cheapest airline to fly from London to Ottawa round-trip?

    Currently priced at $562, Air Canada will fly you from London to Ottawa and back. In addition to Air Canada, many other airlines offer competitively priced options for your trip. You may be able to fly from London to Ottawa for 22% less than the average price by searching for this airline.

  • What are the most reliable airlines from London to Ottawa?

    The top 3 most reliable airlines when flying from London to Ottawa are Air Canada (79%), Austrian Airlines (79%) and SriLankan Airlines (79%).

  • Can I find deals for flights from London to Ottawa that include hotel bookings?

    Yes. In addition to deals on London to Ottawa flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from London to Ottawa?

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

  • 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 $594). Flying from London to Ottawa in December is currently the most expensive (average of $907). 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.

See more FAQs

Traveling to a place near Ottawa?

Book flights to Ottawa if you plan to visit one of these locations
Gatineau

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Alternative routes for London to Ottawa

Heathrow to Pierre Elliott Trudeau Intl flights
Gatwick to Pearson Intl flights
Manchester to Pearson Intl flights

Top airline flying from London to Ottawa

AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$562Average$838FlexibilityNo cancel feeOn-time67%

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