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Cheap flights from London to Ottawa from C$ 527

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/3. Fares are subject to change and may not be available on all flights or dates of travel.
LON — YOW
25 Jan — 1 Feb1
1 adult

The best prices from London to Ottawa are usually found in February or January, booked 14 days in advance, depart on a Monday or Wednesday and return on a Sunday

Cheap 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 20 January 2025.

Round-trip from

C$ 744

One-way from

C$ 527

Popular in

August

Cheapest in

February

Average price

C$ 915
Air France
  • Air France
  • 30/1-3/2
  • 3 total stops
  • 35h 40m total
  • London to Ottawa
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5/3
  • 5/3
  • 1 total stop
  • 28h 01m total
  • London to Ottawa
Search Deals
High demand for flights, 13% potential price rise
Search Deals
Best time to find cheap flights, 2% potential price drop
Search Deals
Average for round-trip flights in January 2025
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Find flight deals from London to Ottawa

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 20 January 2025.

Thu 30/111:45 a.m.LHR - YOW
2 stops17h 25mMultiple Airlines
Mon 3/25:20 p.m.YOW - LHR
1 stop18h 15mMultiple Airlines
Deal found 19/1C$ 744
Tue 11/36:30 a.m.LHR - YOW
2 stops13h 40mKLM
Sun 16/36:20 p.m.YOW - LHR
2 stops12h 25mKLM
Deal found 19/1C$ 759
Wed 7/56:15 a.m.LHR - YOW
1 stop13h 50mVirgin Atlantic
Wed 21/55:15 p.m.YOW - LHR
1 stop12h 15mVirgin Atlantic
Deal found 20/1C$ 760
Thu 27/38:55 a.m.LHR - YOW
2 stops19h 14mAir France
Sun 13/45:15 p.m.YOW - LHR
1 stop23h 10mAir France
Deal found 19/1C$ 763
Tue 9/92:05 p.m.LHR - YOW
1 stop9h 54mAir Canada
Mon 15/99:55 p.m.YOW - LHR
2 stops18h 05mAir Canada
Deal found 19/1C$ 811
Fri 19/99:40 a.m.LGW - YOW
1 stop27h 26mAir Transat
Tue 23/95:05 p.m.YOW - LGW
1 stop9h 50mAir Transat
Deal found 19/1C$ 815
Tue 11/311:55 a.m.LGW - YOW
2 stops16h 14mMultiple Airlines
Sun 16/35:55 a.m.YOW - LGW
2 stops25h 00mMultiple Airlines
Deal found 20/1C$ 851
Wed 12/22:50 p.m.LHR - YOW
1 stop14h 56mWestJet
Tue 25/25:45 p.m.YOW - LHR
1 stop14h 05mWestJet
Deal found 20/1C$ 922
Mon 17/21:30 p.m.LHR - YOW
2 stops15h 17mLufthansa
Thu 27/24:00 p.m.YOW - LHR
1 stop11h 30mLufthansa
Deal found 19/1C$ 938
Tue 11/26:45 p.m.LGW - YOW
2 stops29h 37mSWISS
Mon 24/24:00 p.m.YOW - LGW
2 stops20h 50mSWISS
Deal found 20/1C$ 945
Tue 11/310:00 a.m.LCY - YOW
2 stops18h 09mKLM
Sun 16/35:55 a.m.YOW - LCY
2 stops22h 15mKLM
Deal found 20/1C$ 947
Tue 11/28:05 p.m.LHR - YOW
2 stops28h 17mSWISS
Tue 25/24:00 p.m.YOW - LHR
2 stops19h 20mSWISS
Deal found 20/1C$ 951

Find flights from London to Ottawa within your budget

Customize 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 629,999 searches. Data last updated 20 January 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Thu 30/1

11:45 a.m.-12:10 a.m.

2 stops17h 25m

Ottawa

Mon 3/2

5:20 p.m.-4:35 p.m.

1 stop18h 15m

C$ 744

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Tue 11/3

6:30 a.m.-4:10 p.m.

2 stops13h 40m

Ottawa

Sun 16/3

6:20 p.m.-10:45 a.m.

2 stops12h 25m

C$ 759

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Wed 7/5

6:15 a.m.-3:05 p.m.

1 stop13h 50m

Ottawa

Wed 21/5

5:15 p.m.-10:30 a.m.

1 stop12h 15m

C$ 760

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Thu 27/3

8:55 a.m.-12:09 a.m.

2 stops19h 14m

Ottawa

Sun 13/4

5:15 p.m.-9:25 p.m.

1 stop23h 10m

C$ 763

LondonOttawa

LGW - YOW

LGWYOW

London Gatwick

Tue 11/3

11:40 a.m.-12:42 a.m.

1 stop17h 02m

Ottawa

Sun 16/3

6:25 a.m.-9:45 a.m.

1 stop23h 20m

C$ 818

LondonOttawa

LGW - YOW

LGWYOW

London Gatwick

Tue 11/3

11:55 a.m.-12:09 a.m.

2 stops16h 14m

Ottawa

Sun 16/3

5:55 a.m.-10:55 a.m.

2 stops25h 00m

C$ 851

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Wed 7/5

12:40 p.m.-3:10 p.m.

Nonstop7h 30m

Ottawa

Wed 21/5

1:55 p.m.-6:35 a.m.

1 stop11h 40m

C$ 898

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Wed 12/2

2:50 p.m.-12:46 a.m.

1 stop14h 56m

Ottawa

Tue 25/2

5:45 p.m.-12:50 p.m.

1 stop14h 05m

C$ 922

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Mon 17/2

1:30 p.m.-11:47 p.m.

2 stops15h 17m

Ottawa

Thu 27/2

4:00 p.m.-8:30 a.m.

1 stop11h 30m

C$ 938

LondonOttawa

LGW - YOW

LGWYOW

London Gatwick

Tue 11/2

6:45 p.m.-7:22 p.m.

2 stops29h 37m

Ottawa

Mon 24/2

4:00 p.m.-5:50 p.m.

2 stops20h 50m

C$ 945

Flights are sorted by cheapest round-trip flights first.

Deals found on 19/1

Showing 1-10 of 32 results
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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
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.

Travel insights for flights from London to Ottawa

Get recent, data-driven insights about flights from London to Ottawa including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from London to Ottawa?

Use this chart to determine the optimal time to book a round-trip flight from London to Ottawa. Price data was last updated on 17 January 2025.

The price you pay for your flight from London to Ottawa may vary depending on when you book. For the best chance of a lower fare, look to book 14 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from London to Ottawa?

Currently, October is the cheapest month in which you can book a flight from London to Ottawa (average of C$ 224). Flying from London to Ottawa in March is currently the most expensive (average of C$ 363). 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 20 January 2025.

A simple way to save on the total cost of your ticket is to fly from London to Ottawa in the morning. If you’re flexible enough to do this you can expect to save up to 11% on your trip compared to booking a flight at noon.

Rainfall in Ottawa by month

Plan your trip to Ottawa by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Ottawa ranges from 50.0 - 93.0 mm per month. June is typically the wettest month, when rainfall can reach 93.0 mm. February is typically the driest time to visit Ottawa when rainfall is around 50.0 mm.

Temperature in Ottawa by month

Plan your trip to Ottawa by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Ottawa, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 21.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -10.0 C).

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 20 January 2025.
Peruse reviews from past customers who have flown with KLM, Air France and Air Transat from London to Ottawa to help guide your decision. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,341 reviews
Check prices

Food

7.3

Overall

7.8

Entertainment

7.2

Comfort

7.7

Crew

8.4

Boarding

7.8

Reviews

1 / 10

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

KLM
7.8
Good
1,341 reviews
KLM
7.8
Good
1,341 reviews
Check prices

Food

7.3

Overall

7.8

Entertainment

7.2

Comfort

7.7

Crew

8.4

Boarding

7.8

Reviews

1 / 10

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

Air Transat
7.8
Good
381 reviews
KLM
7.8
Good
1,341 reviews
Check prices

Food

7.3

Overall

7.8

Entertainment

7.2

Comfort

7.7

Crew

8.4

Boarding

7.8

Reviews

1 / 10

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

Austrian Airlines
7.6
Good
786 reviews
KLM
7.8
Good
1,341 reviews
Check prices

Food

7.3

Overall

7.8

Entertainment

7.2

Comfort

7.7

Crew

8.4

Boarding

7.8

Reviews

1 / 10

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

SWISS
7.5
Good
1,599 reviews
KLM
7.8
Good
1,341 reviews
Check prices

Food

7.3

Overall

7.8

Entertainment

7.2

Comfort

7.7

Crew

8.4

Boarding

7.8

Reviews

1 / 10

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

Virgin Atlantic
7.5
Good
665 reviews
KLM
7.8
Good
1,341 reviews
Check prices

Food

7.3

Overall

7.8

Entertainment

7.2

Comfort

7.7

Crew

8.4

Boarding

7.8

Reviews

1 / 10

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

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?

    Ottawa (YOW), located 10.6 km from the city centre, is the airport you fly into when you book flights from London to Ottawa. 2 airlines have flights to Ottawa from London on a regular basis. Booking flights from London to Ottawa should not be difficult; the airport handles an average of 0 inbound flights from London per day.

  • What are the cheapest airlines flying from London to Ottawa round-trip?

    Our cheapest airline available from London to Ottawa is KLM. Our recent data shows that you can find tickets from as low as C$ 759 on this airline. Additional options worth looking into are Virgin Atlantic and Air France, starting at C$ 760 and C$ 763 round-trip. These flights start at 31% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from London to Ottawa one-way?

    C$ 743 is the cheapest one-way deal found within the past few days, from Air Transat. You may also be able to find cheap deals on WestJet and Lufthansa, with prices starting from C$ 924 and C$ 1,042, 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 cheapest flights from London to Ottawa?

    The cheapest flight price from London to Ottawa is C$ 698. On average you can expect to pay C$ 1,181. The most popular route, (London Heathrow - Ottawa), can usually be booked for C$ 705.

  • 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, October is the cheapest month in which you can book a flight from London to Ottawa (average of C$ 224). Flying from London to Ottawa in March is currently the most expensive (average of C$ 363). 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

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Gatineau
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Alternative routes for London to Ottawa

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from London to Ottawa

Discover the top 2 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 629,999 searches. Data last updated 20 January 2025.
AirlineCheapestAverageFlexibilityOn-time
Air FranceCheapestC$ 807AverageC$ 1,030FlexibilityNo cancel feeOn-time77%
Search Air France flights
Air CanadaCheapestC$ 1,003AverageC$ 1,192FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers 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?

When you search for this flight from London to Ottawa, 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 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?

Yes! Start tracking prices for London to Ottawa flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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