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Cheap flights from London Heathrow Airport to Ottawa from £247

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 7/5. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — YOW
30 Mar — 6 Apr1
1 adult

Cheapflights Tip: The best prices from London Heathrow to Ottawa are usually found in March or February, booked 80 days in advance, depart on a Monday or Thursday and return on a Tuesday

Cheap flight deals from Heathrow to Ottawa

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) 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 25 March 2025.

Round-trip from

£433

One-way from

£247

Popular in

August

Cheapest in

March

Average price

£507

Good round-trip deal

£466 or less
United Airlines
  • United Airlines
  • 8/7-16/7
  • 4 total stops
  • 49h 00m total
  • London to Ottawa
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7/5
  • 7/5
  • 3 total stops
  • 52h 10m total
  • London to Ottawa
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (£93 potential increase over avg. return price).
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Cheapest flight prices on average. 3% potential price decrease (£16 potential savings vs. average return price).
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Average for round-trip flights in March 2025
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Price to beat on a round-trip flight from London Heathrow to Ottawa.
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Find flight deals from Heathrow to Ottawa

Cheapest flights from Heathrow to Ottawa
Explore the most affordable flight options available from Heathrow to Ottawa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 25 March 2025.

Tue 1/412:40LHR - YOW
1 stop15h 17mAir Canada
Sat 5/414:10YOW - LHR
2 stops14h 50mAir Canada
Deal found 25/3£412
Wed 26/308:00LHR - YOW
2 stops19h 54mUnited Airlines
Thu 3/409:50YOW - LHR
2 stops15h 55mUnited Airlines
Deal found 24/3£417
Thu 25/917:50LHR - YOW
1 stop11h 32mKLM
Wed 8/1005:55YOW - LHR
1 stop23h 45mKLM
Deal found 25/3£435
Thu 8/506:00LHR - YOW
2 stops23h 19mAustrian Airlines
Thu 15/519:55YOW - LHR
1 stop10h 55mAustrian Airlines
Deal found 23/3£457
Wed 26/314:45LHR - YOW
1 stop29h 25mAir France
Tue 1/417:15YOW - LHR
1 stop12h 15mAir France
Deal found 24/3£458
Wed 7/506:00LHR - YOW
2 stops20h 09mMultiple Airlines
Wed 14/521:00YOW - LHR
Nonstop6h 35mMultiple Airlines
Deal found 24/3£469
Mon 12/514:05LHR - YOW
Nonstop7h 30mLufthansa
Wed 21/520:55YOW - LHR
1 stop8h 05mLufthansa
Deal found 24/3£472
Wed 26/314:45LHR - YOW
1 stop29h 25mVirgin Atlantic
Sun 6/417:15YOW - LHR
1 stop9h 45mVirgin Atlantic
Deal found 24/3£476
Thu 25/907:40LHR - YOW
2 stops21h 39mAer Lingus
Wed 8/1011:55YOW - LHR
2 stops21h 00mAer Lingus
Deal found 25/3£523
Thu 25/907:00LHR - YOW
2 stops16h 59mSWISS
Wed 8/1015:55YOW - LHR
2 stops19h 30mSWISS
Deal found 25/3£549
Sun 11/506:00LHR - YOW
2 stops16h 04mTAP AIR PORTUGAL
Sun 11/520:55YOW - LHR
2 stops21h 00mTAP AIR PORTUGAL
Deal found 24/3£1,249
Sat 20/906:30LHR - YOW
2 stops19h 39mLOT
Mon 6/1019:55YOW - LHR
2 stops16h 25mLOT
Deal found 23/3£1,590

Cheapflights Fare Finder

Customise your flight search to find flights from Heathrow 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 858,174 searches. Data last updated 25 March 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Ottawa that are best for you.

Fly from

Heathrow

Fly to

Ottawa

Route

Depart

Return

Price

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Tue 8/7

11:05-13:10

2 stops31h 05m

Ottawa

Wed 16/7

10:25-09:20

2 stops17h 55m

£433

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Sat 26/4

15:50-01:34

1 stop14h 44m

Ottawa

Sat 3/5

21:00-08:35

Nonstop6h 35m

£440

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Thu 8/5

06:00-00:19

2 stops23h 19m

Ottawa

Thu 15/5

19:55-11:50

1 stop10h 55m

£457

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Wed 7/5

06:00-21:09

2 stops20h 09m

Ottawa

Wed 14/5

21:00-08:35

Nonstop6h 35m

£469

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Mon 12/5

14:05-16:35

Nonstop7h 30m

Ottawa

Wed 21/5

20:55-10:00

1 stop8h 05m

£472

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Thu 7/8

17:50-00:22

1 stop11h 32m

Ottawa

Sun 24/8

17:15-16:35

1 stop18h 20m

£685

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Sun 11/5

06:00-17:04

2 stops16h 04m

Ottawa

Sun 11/5

20:55-22:55

2 stops21h 00m

£1,249

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Sun 29/6

09:35-00:22

2 stops19h 47m

Ottawa

Mon 7/7

17:15-10:30

1 stop12h 15m

£1,377

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Mon 15/9

06:30-15:05

2 stops13h 35m

Ottawa

Mon 15/9

17:15-10:45

2 stops12h 30m

£1,414

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Sat 20/9

06:30-21:09

2 stops19h 39m

Ottawa

Mon 6/10

19:55-17:20

2 stops16h 25m

£1,590

Flights are sorted by cheapest return flights first.

Deals found on 24/3

Showing 1-10 of 18 results
1
2

Best time to book a flight from Heathrow to Ottawa

Have a flexible travel schedule? Discover the best time to fly to Ottawa from Heathrow with our price prediction graph.
Estimated return 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.

Cheapflights Insights

Everything you need to know about your flight from London Heathrow Airport to Ottawa

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

Use this chart to determine the optimal time to book a return flight from Heathrow to Ottawa. Price data was last updated on 21 March 2025.

Booking 80 days in advance of your planned departure date is, on average, the best time to get cheap flights from London Heathrow Airport to Ottawa. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Ottawa (average of £588). Flying from London Heathrow Airport to Ottawa in December is currently the most expensive (average of £875). 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 LHR to YOW?

Find hourly flight availability from Heathrow 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 25 March 2025.

A simple way to save on the total cost of your ticket is to fly from London Heathrow Airport to Ottawa in the evening. If you’re flexible enough to do this you can expect to save up to 28% on your trip compared to booking a flight in the morning.

What is the cheapest day to fly from London Heathrow Airport to Ottawa?

Use this chart to determine the cheapest time to fly return from Heathrow to Ottawa. Price data was last updated on 16 March 2025.

Travellers seeking maximum savings on their London Heathrow Airport to Ottawa flight should consider departing on Monday evenings when fares are most often at their lowest. Thursday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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 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

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 25 March 2025.
See what other customers who have flown with KLM, LOT and Austrian Airlines from London to Ottawa have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,318 reviews
Check prices

Food

7.3

Entertainment

7.1

Overall

7.8

Crew

8.4

Comfort

7.7

Boarding

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
KLM
7.8
Good
1,318 reviews
KLM
7.8
Good
1,318 reviews
Check prices

Food

7.3

Entertainment

7.1

Overall

7.8

Crew

8.4

Comfort

7.7

Boarding

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
LOT
7.6
Good
1,061 reviews
KLM
7.8
Good
1,318 reviews
Check prices

Food

7.3

Entertainment

7.1

Overall

7.8

Crew

8.4

Comfort

7.7

Boarding

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
Austrian Airlines
7.5
Good
769 reviews
KLM
7.8
Good
1,318 reviews
Check prices

Food

7.3

Entertainment

7.1

Overall

7.8

Crew

8.4

Comfort

7.7

Boarding

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
SWISS
7.5
Good
1,569 reviews
KLM
7.8
Good
1,318 reviews
Check prices

Food

7.3

Entertainment

7.1

Overall

7.8

Crew

8.4

Comfort

7.7

Boarding

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
Air France
7.4
Good
1,423 reviews
KLM
7.8
Good
1,318 reviews
Check prices

Food

7.3

Entertainment

7.1

Overall

7.8

Crew

8.4

Comfort

7.7

Boarding

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.

Related info for your journey

Find useful and relevant information for your journey from Heathrow 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 Heathrow?

    Ottawa (YOW), located 6.6 mi from the city center, is the airport you fly into when you book flights from London Heathrow to Ottawa. 7 airlines have flights to Ottawa from London Heathrow on a regular basis. Booking flights from London Heathrow to Ottawa should not be difficult; the airport handles an average of 0 inbound flights from London Heathrow per day.

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

    Our cheapest airline available from London Heathrow Airport to Ottawa is United Airlines. Our recent data shows that you can find tickets from as low as £433 on this airline. Additional options worth looking into are Air Canada and Austrian Airlines, starting at £440 and £457 round-trip. Users have found that United Airlines is 28% cheaper than the other options available to this destination.

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

    For one-way options, check prices for Aer Lingus. According to our data, you can fly for as low as £380. Users have also found prices from £387 and £469 on WestJet and Lufthansa, respectively.

  • What are the cheapest flights from London Heathrow Airport to Ottawa?

    Looking at all options, your cheapest flight can be booked for £403. While the most popular route (London Heathrow - Ottawa) can be booked for £314 on average our data indicates £548 when flying from London Heathrow Airport to Ottawa.

  • Where are the most common stopover locations when flying from London Heathrow Airport to Ottawa?

    The most popular stopover on flights from London Heathrow Airport to Ottawa is Paris. Montreal is the second most popular location for stopovers on flights from London Heathrow Airport to Ottawa.

  • What are some popular things to do or see while on a stopover in Paris?

    The majority of Paris visitors spend their time at Eiffel Tower, Moulin Rouge, and Champs-Elysées. Travelers on a layover in Paris can visit Eiffel Tower, Moulin Rouge, and Champs-Elysées, by traveling 15.8 mi, 13.3 mi, and 14.7 mi, respectively after landing at Paris Charles de Gaulle. Travellers can book a car hire at Paris Charles de Gaulle for about £37 per day to make their sightseeing more efficient.

  • Where are the least popular stopover locations for London Heathrow Airport to Ottawa flights?

    The least popular stopover on flights from London Heathrow Airport to Ottawa is Toronto.

  • Can I find deals for flights from Heathrow to Ottawa that include hotel bookings?

    Yes. In addition to deals on Heathrow to Ottawa flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Heathrow to Ottawa?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Ottawa.

  • Can I find deals for business class flights from Heathrow to Ottawa?

    Yes. Cheapflights offers flight deals from Heathrow 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 Heathrow Airport to Ottawa?

    Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Ottawa (average of £588). Flying from London Heathrow Airport to Ottawa in December is currently the most expensive (average of £875). 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 Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Gatineau
Smiths Falls

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Alternative routes for Heathrow to Ottawa

See prices for flight routes from nearby airports that may be better suited for you.
Heathrow to Pearson Intl flights
Gatwick to Pearson Intl flights
London City to Pearson Intl flights
Heathrow to Toronto Island flights
Heathrow to Pierre Elliott Trudeau Intl flights
Gatwick to Toronto Island flights
Luton to Pearson Intl flights
Stansted to Pearson Intl flights
Gatwick to Pierre Elliott Trudeau Intl flights
London City to Pierre Elliott Trudeau Intl flights
Luton to Pierre Elliott Trudeau Intl flights
Stansted to Pierre Elliott Trudeau Intl flights
Southend to Pearson Intl flights
Gatwick to Ottawa flights
London City to Ottawa flights
Heathrow to London flights
Gatwick to London flights
Stansted to Ottawa flights
Heathrow to Windsor flights
Gatwick to Region of Waterloo Intl flights
Stansted to London flights
London City to London flights
Heathrow to Sarnia flights
Gatwick to Thunder Bay flights
Heathrow to North Bay flights
London City to Thunder Bay flights
Heathrow to Timmins flights
Heathrow to Thunder Bay flights

Top 7 airlines flying from Heathrow to Ottawa

Discover the top 7 airlines that operate flights from Heathrow 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 858,174 searches. Data last updated 25 March 2025.
AirlineCheapestAverageFlexibilityOn-time
Air FranceCheapest£382Average£536FlexibilityNo cancel feeOn-time77%
Search Air France flights
Virgin AtlanticCheapest£394Average£462FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
KLMCheapest£395Average£521FlexibilityNo cancel feeOn-time75%
Search KLM flights
Air TransatCheapest£439Average£537FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
LufthansaCheapest£463Average£586FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Air CanadaCheapest£464Average£604FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapest£548Average£716FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Heathrow to Ottawa?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Ottawa from Heathrow today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Heathrow to Ottawa?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Heathrow to Ottawa for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Heathrow to Ottawa with no change fees?

Certainly. Search results for flights to Ottawa from Heathrow shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Heathrow to Ottawa become cheaper?

Not ready to book yet? You can track prices for flights from Heathrow to Ottawa on Cheapflights with our Price Alert feature and get notified when better prices are available.

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