Cheap flights from London to Ottawa

London
LON
Macdonald-Cartier
YOW

Flight deals from London to Ottawa

Below you can see the best deals on flights London — Ottawa for upcoming dates. Direct and connecting flights from various airlines — compare prices and choose the right ticket.

The lowest price for the next 2 months is on 1 September, from AED 1,137.

Top 10 cheap flights from London to Ottawa

TS
TS
 1,137

London — Ottawa

11:35—17:35
1 Sep 2026
11 h
1 stop
TS
TS
 1,137

London — Ottawa

11:35—17:35
6 Sep 2026
11 h
1 stop
TS
 1,139

London — Ottawa

09:40—12:40
4 Sep 2026
8 h
Direct flight
TS
 1,151

London — Ottawa

09:40—12:40
6 Sep 2026
8 h
Direct flight
TS
 1,152

London — Ottawa

09:40—12:40
13 Sep 2026
8 h
Direct flight
TS
TS
 1,152

London — Ottawa

12:40—20:40
2 Sep 2026
13 h
1 stop
TS
TS
 1,152

London — Ottawa

09:40—20:40
2 Sep 2026
16 h
1 stop
TS
TS
 1,152

London — Ottawa

09:40—21:20
3 Sep 2026
16 h 40 m
1 stop
TS
TS
 1,152

London — Ottawa

12:40—00:25
7 Sep 2026
16 h 45 m
1 stop
TS
TS
 1,152

London — Ottawa

09:40—00:25
7 Sep 2026
19 h 45 m
1 stop

Prices were found in the last 72 hours and may change — check the exact price when you continue.

About the London — Ottawa flight

Looking for cheap flights from London to Ottawa? Compare fares from different airlines, check the flight schedule and travel time — and book your London — Ottawa ticket online at the best price.

The route has direct flights — around 20 flights per week, flights are operated by Air Canada, Air Transat, Middle East Airlines, Austrian and 4 more airlines, a nonstop flight takes about 8 h, the distance between the cities is around 5,377 km.

Planning your trip? You may find our Ottawa travel guide, how to get from the airport into town and Ottawa weather forecast useful. To catch a low fare, use the low-price calendar and the monthly price chart on this page.

Facts about this route

from AED 1,137Min. price
SeptemberCheapest
JulyPeak season
YesDirect flights
5,377 kmDistance
8 hTravel time
8Airlines
20 / wkFlights

Flight schedule from London to Ottawa

The table shows direct flights from London to Ottawa on the selected date. The flight takes approximately 8 h. Regular flights are operated by Air Canada, Air Transat, Middle East Airlines and Austrian. Departures from Heathrow Airport, London Gatwick Airport and Stansted Airport airports, arrivals at Ottawa Macdonald–Cartier International Airport.

For each flight, the following details are shown: departure time (local), arrival city and airport, flight number and airline, terminal or gate, and status. Click on a flight to open its details and go to ticket search. To view flights on a different day, change the date above the table.

Today
Any time
Last update: 13 Aug 2026

Flight ticket prices by day: London — Ottawa

Below is a calendar of the lowest flight ticket prices for London — Ottawa by day. Pick a convenient date and instantly see the fare. The cheapest flights on this route start from AED 1,137 in September, and the most expensive are around AED 2,477 in July. If your travel dates are flexible, the calendar will help you find the best price for your preferred period. To view round-trip fares, switch to the "Round trip" tab above the calendar, select your departure date — and the right-hand calendar will highlight the lowest prices for return flights on each day.

 
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Prices by month

Average one-way fares from London to Ottawa by month. Tickets are usually cheapest in February (around AED 2,094) and priciest in July (about AED 3,475) — use the table and chart below to pick the best time to fly.

MonthAverage priceLevelMonthAverage priceLevelMonthAverage priceLevel
JanAED 2,138lowMayAED 2,673mediumSepAED 2,762medium
FebAED 2,094lowJunAED 3,118highOctAED 2,584medium
MarAED 2,316mediumJulAED 3,475highNovAED 2,227low
AprAED 2,450mediumAugAED 3,341highDecAED 3,029high

Some values are estimated based on seasonality.

When to fly

Weather in Ottawa: it is warmest in July (up to 27 °C on average) and coolest in January (around -4 °C). The driest month is September.

Tickets are usually cheapest in September and most expensive in July. Compare prices and weather by month in the charts below to pick the best time to fly.

Temperature · Ottawa

Dry and wet days · Ottawa

Wind speed and direction · Ottawa

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How to get the best deal on a London — Ottawa ticket

  • Book ahead: fares for London — Ottawa are usually lower 3–8 weeks before departure than at the last minute.
  • Play with your dates — Tuesday, Wednesday and Saturday departures are often cheaper than Friday and Sunday.
  • London is served by more than one airport — compare fares and travel time to each before you book.
  • The cheapest month to fly to Ottawa is usually September — plan your trip around it if your dates are flexible.
  • Compare direct and connecting flights: nonstop is faster, while a connection is sometimes noticeably cheaper.
  • Watch the low-price calendar and the monthly price trend on this page — they make it easier to catch a good date.
  • Travelling light? Pick a cabin-baggage-only fare — tickets without checked luggage are noticeably cheaper.
  • Get to the airport in good time — about 2–3 hours before an international departure and roughly an hour before a domestic one.

Airlines

Flights on the London — Ottawa route are operated by 8 airlines; Air Canada runs the most flights (around 40% of all flights). Compare carriers, flight shares and schedules below.

  • Air CanadaAC
    3x/week
    WebsiteFleet: 20346M pax/year
    • Direct flight LHR → YOW3x/week
      Duration
      7h 55m
      Days
      MTWTFSS
    40.0%Open →
  • Air TransatTS
    2x/week
    WebsiteFleet: 405M pax/year
    • Direct flight LGW → YOW2x/week
      Duration
      8h
      Days
      MTWTFSS
    30.0%Open →
  • Middle East AirlinesME
    1x/week
    WebsiteFleet: 233.5M pax/year
    • Direct flight LHR → YOW1x/week
    5.0%Open →
  • AustrianOS
    1x/week
    WebsiteFleet: 6814.6M pax/year
    • Direct flight LHR → YOW1x/week
    5.0%Open →
  • TAP PortugalTP
    1x/week
    WebsiteFleet: 9415.9M pax/year
    • Direct flight LHR → YOW1x/week
    5.0%Open →
  • United AirlinesUA
    1x/week
    WebsiteFleet: 956165M pax/year
    • Direct flight LHR → YOW1x/week
    5.0%Open →
  • SriLankan AirlinesUL
    1x/week
    WebsiteFleet: 244.5M pax/year
    • Direct flight LHR → YOW1x/week
    5.0%Open →
  • LufthansaLH
    1x/week
    WebsiteFleet: 38764.5M pax/year
    • Direct flight LHR → YOW1x/week
    5.0%Open →

Cities and airports on the London — Ottawa route

Flights London — Ottawa depart from Heathrow Airport, London Gatwick Airport, Stansted Airport and London Luton Airport and arrive at Ottawa Macdonald–Cartier International Airport. Below are pages for the cities, countries, and airports on the route: airlines, schedules, and travel guides.

Departure

London

LON
United Kingdom
About the cityHow to get thereWeatherAll about the country United Kingdom
Arrival

Ottawa

YOW
Canada
About the cityHow to get thereWeatherAll about the country Canada
Departure airports
Arrival airports

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Frequently asked questions about the London — Ottawa flight

How long is the flight from London to Ottawa?

A nonstop London — Ottawa flight takes about 8 h — the distance between the cities is around 5,377 km.

How far is it from London to Ottawa?

The distance from London to Ottawa is about 5,377 km, which a nonstop flight covers in around 8 h.

Are there direct flights from London to Ottawa?

Yes, there are nonstop flights London — Ottawa — around 20 flights per week.

Which airlines fly from London to Ottawa?

Airlines operating London — Ottawa include Air Canada, Air Transat, Middle East Airlines, Austrian, TAP Portugal. See the full list with schedules in the "Airlines" section on this page.

Which airports do London — Ottawa flights use?

Flights from London depart from Heathrow Airport, London Gatwick Airport, Stansted Airport, and arrive at Ottawa Macdonald–Cartier International Airport. If a city has more than one airport, check which one your ticket uses before you travel.

How much is a ticket from London to Ottawa?

The price of a London — Ottawa ticket depends on your travel date, season and demand: it is usually cheapest to fly in September, and most expensive in July. Tickets typically cost between AED 1,137 and AED 2,477. Check the current lowest fare and low-price calendar on this page.

When is the best time to book flights London — Ottawa?

Flights London — Ottawa are usually cheaper when booked in advance — a few weeks before departure and away from peak dates; the most budget-friendly month to fly is September. Compare prices by month in the price trend chart on this page.

How can I find the cheapest flights from London to Ottawa?

To catch a low fare London — Ottawa, book a few weeks in advance, keep your dates flexible, and compare airlines and connecting options. The low-price calendar and monthly price chart on this page show the cheapest days and months at a glance: the most budget-friendly month to fly is usually September.

How early should I arrive at the airport?

For international flights, plan to be at the airport about 2–3 hours before departure, and around an hour before a domestic flight. Allow extra time during busy travel seasons and at large hubs, where check-in and security lines can be longer.

Where else you can fly from London

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Where else you can fly from Ottawa

See all
TorontoMontrealHalifaxCalgaryNew York CityWashington, D.C.VancouverWinnipegMonctonEdmontonChicagoQuebec CityFrederictonCancunPunta CanaThunder BayFort LauderdaleParisBostonLiberiaSt. John'sOrlandoCharlottetownNassauMontego BayIqaluitWindsorPuerto PlataKuujjuaqTampaVictoriaFort MyersMexico CityTokyo

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