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Find Ottawa to London flights starting at CAD 313.

We've found these cheap flights for you. You can book one-way or return flight tickets.

  • One way
  • Round-trip
      • YOW06:15
        25h 35m
        1 stop
        LHR12:50
        Wed, Dec 4|Ottawa - London|WestJet
        CAD 313CAD 489
        36% OFF
        36% OFF
        CAD 489CAD 313

        Choose WestJet flights from Ottawa to London. The one-way connecting flight with WestJet departs from Ottawa Macdonald-Cartier International Airport on Wed, Dec 4, arriving at London Heathrow Airport. One-way Prices start from CAD 313 including taxes and charges.

      • YOW06:15
        25h 35m
        1 stop
        LHR12:50
        Mon, Dec 9|Ottawa - London|WestJet
        CAD 322CAD 489
        34% OFF
        34% OFF
        CAD 489CAD 322

        Choose WestJet flights from Ottawa to London. The one-way connecting flight with WestJet departs from Ottawa Macdonald-Cartier International Airport on Mon, Dec 9, arriving at London Heathrow Airport. One-way Prices start from CAD 322 including taxes and charges.

      • YOW17:20
        23h 50m
        1 stop
        LHR22:10
        Mon, Dec 9|Ottawa - London|Porter Airlines
        CAD 324CAD 489
        34% OFF
        34% OFF
        CAD 489CAD 324

        Choose Porter Airlines flights from Ottawa to London. The one-way connecting flight with Porter Airlines departs from Ottawa Macdonald-Cartier International Airport on Mon, Dec 9, arriving at London Heathrow Airport. One-way Prices start from CAD 324 including taxes and charges.

      • YOW15:55
        15h 55m
        1 stop
        LHR12:50
        Thu, Nov 28|Ottawa - London|WestJet
        CAD 325
        CAD 325

        Choose WestJet flights from Ottawa to London. The one-way connecting flight with WestJet departs from Ottawa Macdonald-Cartier International Airport on Thu, Nov 28, arriving at London Heathrow Airport. One-way Prices start from CAD 325 including taxes and charges.

      • YOW06:15
        25h 35m
        1 stop
        LHR12:50
        Wed, Nov 27|Ottawa - London|WestJet
        CAD 326
        CAD 326

        Choose WestJet flights from Ottawa to London. The one-way connecting flight with WestJet departs from Ottawa Macdonald-Cartier International Airport on Wed, Nov 27, arriving at London Heathrow Airport. One-way Prices start from CAD 326 including taxes and charges.

      • YOW06:15
        25h 35m
        1 stop
        LHR12:50
        Mon, Dec 2|Ottawa - London|WestJet
        CAD 326
        CAD 326

        Choose WestJet flights from Ottawa to London. The one-way connecting flight with WestJet departs from Ottawa Macdonald-Cartier International Airport on Mon, Dec 2, arriving at London Heathrow Airport. One-way Prices start from CAD 326 including taxes and charges.

      • YOW15:55
        15h 55m
        1 stop
        LHR12:50
        Tue, Nov 26|Ottawa - London|WestJet
        CAD 328
        CAD 328

        Choose WestJet flights from Ottawa to London. The one-way connecting flight with WestJet departs from Ottawa Macdonald-Cartier International Airport on Tue, Nov 26, arriving at London Heathrow Airport. One-way Prices start from CAD 328 including taxes and charges.

      • YOW19:00
        36h 50m
        1 stop
        LHR12:50
        Sat, Dec 7|Ottawa - London|Porter Airlines
        CAD 337
        CAD 337

        Choose Porter Airlines flights from Ottawa to London. The one-way connecting flight with Porter Airlines departs from Ottawa Macdonald-Cartier International Airport on Sat, Dec 7, arriving at London Heathrow Airport. One-way Prices start from CAD 337 including taxes and charges.

      • YOW19:00
        36h 50m
        1 stop
        LHR12:50
        Fri, Nov 29|Ottawa - London|Porter Airlines
        CAD 337
        CAD 337

        Choose Porter Airlines flights from Ottawa to London. The one-way connecting flight with Porter Airlines departs from Ottawa Macdonald-Cartier International Airport on Fri, Nov 29, arriving at London Heathrow Airport. One-way Prices start from CAD 337 including taxes and charges.

      • YOW06:15
        25h 35m
        1 stop
        LHR12:50
        Mon, Nov 25|Ottawa - London|WestJet
        CAD 337
        CAD 337

        Choose WestJet flights from Ottawa to London. The one-way connecting flight with WestJet departs from Ottawa Macdonald-Cartier International Airport on Mon, Nov 25, arriving at London Heathrow Airport. One-way Prices start from CAD 337 including taxes and charges.

      • YOW13:00
        3h 5m
        Nonstop
        LON14:00
        Sun, Nov 24|Ottawa - London|WestJet
        Find More Flights
        Find More Flights

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

When is the cheapest time to fly from Ottawa to London?

We monitor flight fares to help you find the best deals effortlessly

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Find Cheapest Airlines Flying from Ottawa to London

Compare prices, find the option that best suits your travel needs, and enjoy a comfortable journey with a trusted airline.

WestJet
From CAD 313
Porter Airlines
From CAD 324
Air Transat
From CAD 345
United Airlines
From CAD 369
Air Canada
From CAD 426
Brussels Airlines
From CAD 695
Aer Lingus
From CAD 705
TAP Air Portugal
From CAD 991
Lufthansa
From CAD 993
Austrian Airlines
From CAD 1,011

Find more flights and airlines

Alternative Routes for Ottawa to London Flights

Searching for potential routes that might be cheaper and faster? Check out these alternative flights from Ottawa to London.

  • Cheapest
    WestJet
    YOW
    06:15
    25h 35m
    1 transfer
    LHR
    12:50
    Ottawa Macdonald-Cartier International Airport - London Heathrow Airport
    Wed, Dec 4WestJet
    CAD 313
  • Porter Airlines
    YOW
    09:20
    19h 40m
    1 transfer
    LGW
    10:00
    Ottawa Macdonald-Cartier International Airport - Gatwick Airport
    Mon, Jan 13Porter Airlines
    CAD 383
  • WestJet
    YOW
    05:55
    23h 5m
    2 transfer
    STN
    10:00
    Ottawa Macdonald-Cartier International Airport - London Stansted Airport
    Sun, Jan 19WestJet
    CAD 383
  • WestJet
    YOW
    05:55
    23h 5m
    2 transfer
    STN
    10:00
    Ottawa Macdonald-Cartier International Airport - London Stansted Airport
    Sun, Jan 19WestJet
    CAD 383
    Find More Flights

FAQ

  • When are flight tickets from Ottawa (YOW) to London (LON) the cheapest?

    Airlines adjust prices for flights from Ottawa to London based on the date and time of your booking. By analyzing data from all airlines, on Trip.com, you can find the cheapest flight prices on Tuesdays, Wednesdays, and Saturdays.

  • How much are flights from Ottawa (YOW) to London (LON) cost?

    According to Trip.com's data, the lowest price is around CAD 1,501.

  • What is the transportation method from the main airport to downtown in London?

    • The distance from Gatwick Airport to downtown is about 39km, by taxi about 50 minutes.
    • The distance from London Heathrow Airport to downtown is about 23km, by taxi about 40 minutes.
    • The distance from London Luton Airport to downtown is about 44km, by taxi about 1 hour.

  • What's the most popular airline for direct flights from Ottawa (YOW) to London (LON)?

    Lufthansa operates 1 direct flights from Ottawa (YOW) to London (LON).

  • How many airports in London (LON)?

How to find a cheap flight from Ottawa to London

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Ottawa to London. Book your flights at the right time and save more.
1
Book Early
Once prices are gone, they're gone. Lock in deals while you can!
2
Compare Flight Prices
Compare prices on travel agency and airline websites.
3
Look Out for Deals
Check airline and travel agency websites for latest flight deals
4
Check One-way Fares
Buying two cheap one-way flights can sometimes be a better deal than a round-trip.
5
Try Different Dates
Flying during the week, early in the morning, or late at night can help save money.
6
Use the Trip.com App
Save up to £10 per person when booking your flights on Trip.com

Flight Information for Ottawa to London Flights

Cheapest direct flight priceCAD 312
Off-season travel monthDecember
Peak season for travelFebruary
Flight distance5,363.8km
Popular airlinePorter Airlines

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