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Air Transat flights from London to Ottawa (LON - YOW)

LON — YOW
10 Nov — 17 Nov1
1 adult
1 adult, Economy, 0 bags

Find Air Transat flight deals from London to Ottawa

Enter your travel dates to find the best prices.

Cheapest Air Transat flights from London to Ottawa

Fri 23/1009:40 -
Nonstop8h 00m
Mon 16/1117:45 -
1 stop11h 00m
Deal found 8/10£540
Thu 5/1111:40 -
1 stop25h 27m
Sun 8/1112:50 -
1 stop15h 55m
Deal found 10/10£546
Wed 25/1111:40 -
1 stop15h 22m
Wed 2/1210:15 -
1 stop18h 30m
Deal found 11/10£554

  • How do most travelers feel about Air Transat?

    584 Cheapflights users have left reviews for Air Transat and have rated the airline 7.7/10. If you are looking to travel from London to Ottawa on Air Transat, input your dates in the form above for our best prices!

  • Can I get a flight from London to Ottawa on Air Transat for under £529?

    Cheapflights currently has 3 LON-YOW flights for under £529. Flights to Ottawa will vary based on many factors, like date and time. Click here to find the best price for your dates on Cheapflights.

Air Transat flights from London to Ottawa in 2026

One-way from

£496

Return from

£540

Popular in

December

Cheapest in

June

Average price (all airlines)

£511
Air Transat
  • Air Transat
  • 25/11-31/12
  • 1 total stop
  • 11h 12m total
  • London to Ottawa
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Air Transat
  • Air Transat
  • 23/10-16/11
  • 1 total stop
  • 19h 00m total
  • London to Ottawa
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Highest demand for flights from London to Ottawa; 8% potential price increase.
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Best time to find cheap flights from London to Ottawa; 2% potential price drop.
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Average price for all London to Ottawa flights (one-way and round-trip).
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Which month is the cheapest to fly Economy class from London to Ottawa?

For Economy class flights, the cheapest month to fly this route is May. The most expensive months are December and July.

Rainfall in Ottawa by month

In terms of precipitation, rainfall in Ottawa ranges from 50.0 - 93.0 inches 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

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).

When is the best time to book a flight to Ottawa with Air Transat?

The best time to book a flight to Ottawa with Air Transat is 11 days before departure. On average, fares are higher if you book 75 days before departure.

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 return price

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See what others are saying about Air Transat

Air Transat
7.7
Good
584 reviews
Check prices
Overview

Comfort

7.3

Entertainment

7.1

Boarding

8.0

Food

6.8

Crew

8.5

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