The cheapest times to fly from LHR to YOW are

  • March 26th to April 29th
  • May 14th to July 8th
  • September 3rd to December 9th (except the week of October 22nd)

based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from LHR to YOW is early June. Prices can be as high as $1059 for Saturday flights during early August, or as low as $450 for Wednesday flights around early June.


When to Fly to Ottawa

Flying from London (LHR) to Ottawa (YOW) will usually cost between $474 to $867 per person if booking more than four weeks in advance. On average the very cheapest time to fly is early June with an average ticket price of $472. Due to high demand the most expensive time to fly is early August, with an average price of $967. Planning your trip to low-cost times can easily save you $495 on economy flights and even more on first-class flights. Generally, any price below $629 can be considered a good price for a round-trip LHR to YOW flight.

See below for a graph of average weekly prices for the LHR to YOW route. All prices are for round-trip tickets in USD.

LHR to YOW Flight Prices

Compared to other flights, the LHR to YOW flight is cheaper than the average and costs less than the average flight leaving from London. The average price per mile (for a direct flight) is $0.12, which is far below average.


Flight Prices by Day of the Week

Wednesday is usually the cheapest day to fly to YOW, and Tuesday the cheapest day to fly back into LHR. Saturdays are the most expensive days to fly out or take a return trip. Selecting flights on the least expensive days could save you up to $46 (6%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Wednesday and returning a week later will cost an average of $607. Return trip prices are from the YOW to LHR flight, and often highlight the quality of our data in showing the same trend.

Departing Prices by Day

Departure Day Prices

Return Trip Prices by Day

Return Day Prices


Nonstop Flights and Layovers

Travelers looking to fly from LHR to YOW can generally find a 0-layover flight. Because there is a direct flight option the real-world direct flight time of 6 hour 58 minutes may be realistic.


Alternative Nearby Airports

Champion Traveler tells you which airports are nearby and whether tickets might be cheaper alternative airports nearby. Sometimes it’s worth it to fly into a closer airport and then commute to your destination. Remember that there is a nonstop flight from LHR to YOW while comparing.

Destination alternative #1: Pierre Elliott Trudeau International Airport (YUL) in Montreal

  • 94 miles (151 km) away from YOW
  • Usually 7.00% less expensive than YOW
  • Nonstop flights available

See LHR to YUL flights


Flight Hacking LHR to YOW

Flight hacking is when you book two tickets instead of a layover, sometimes with different airlines. You will need to either bring only a carry-on bag (highly recommended) or leave yourself plenty of time to go through security again. Flight hacking is completely allowed, but airlines don’t always tell you the cheapest way to get from LHR to YOW — but Champion Traveler does!

Hack #1: New York, NY (LHR > LGA > YOW)

  • Price for both tickets: $628
  • Average savings: $1 (0.08%)

See LHR to flights


Flight Questions Answered

Still have questions about flying from LHR to YOW? We’ve got answers.

Which airlines fly this route?

You can find 24 major airlines flying this route most often: Aer Lingus, Air Canada, Air France, Alitalia, American, Austrian, Azores Airlines, British Airways, Brussels Airlines, Condor, Delta, Finnair, Iberia, Icelandair, KLM, LOT, Lufthansa, Porter Airlines, SAS, SWISS, Tap Air Portugal, United, Virgin Atlantic, WestJet, and potentially more during busy seasons.

How far away is it from Ottawa Macdonald Cartier International Airport to London Heathrow Airport?

The distance between the two airports is roughly 3321 miles or 5345 kilometers.

How long does it take to fly from LHR to YOW?

The real-world flight time for a nonstop LHR to YOW flight is about 6 hour 58 minutes.

How many flights go between London and Ottawa?

It depends on the day of the week and the date, but a typical day might have around 55 available flights from LHR to YOW.


Airport Location Info


Departing Airport

Origination codeLHR
Origination airport nameLondon Heathrow Airport
Countrythe United Kingdom

Return Airport

Destination codeYOW
Destination airport nameOttawa Macdonald Cartier International Airport


Other Resources

Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.