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Cheap flights from London Heathrow Airport to Ottawa from C$ 489

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 15/12. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — YOW
16 oct. — 23 oct.1
1 adult
1 adult, Economy

Cheapflights Tip: The best prices from London Heathrow to Ottawa are usually found in March or April, booked 88 days in advance, depart on a Wednesday or Thursday and return on a Friday

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 16 septiembre 2025.

Round-trip from

C$ 798

One-way from

C$ 489

Popular in

August

Cheapest in

March

Average price

C$ 971

Good round-trip deal

C$ 1,005 or less

Good one-way deal

C$ 1,006 or less
KLM
  • KLM
  • 30/9-27/11
  • 3 total stops
  • 23h 57m total
  • London to Ottawa
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15/12
  • 15/12
  • 2 total stops
  • 45h 27m total
  • London to Ottawa
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Highest demand for flights based on searches. 13% potential increase in price (C$ 218 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease (C$ 43 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from London Heathrow to Ottawa.
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Price to beat on a one-way 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 16 septiembre 2025.

mar. 30/95:50 p.m.LHR - YOW
1 stop11h 32mKLM
jue. 27/115:20 p.m.YOW - LHR
2 stops12h 25mKLM
Deal found 16/9C$ 798
mar. 14/105:50 p.m.LHR - YOW
1 stop11h 32mAir France
mar. 21/105:15 p.m.YOW - LHR
1 stop18h 20mAir France
Deal found 16/9C$ 800
jue. 9/105:50 p.m.LHR - YOW
1 stop11h 32mMultiple Airlines
lun. 20/105:15 p.m.YOW - LHR
1 stop23h 10mMultiple Airlines
Deal found 15/9C$ 807
jue. 6/116:30 a.m.LHR - YOW
2 stops13h 40mKLM
jue. 20/115:20 p.m.YOW - LHR
2 stops12h 25mKLM
Deal found 16/9C$ 808
sáb. 4/105:50 p.m.LHR - YOW
1 stop11h 32mKLM
sáb. 25/105:55 a.m.YOW - LHR
2 stops21h 10mKLM
Deal found 15/9C$ 816
mar. 14/108:30 a.m.LHR - YOW
1 stop20h 52mMultiple Airlines
mar. 21/105:55 a.m.YOW - LHR
2 stops22h 40mMultiple Airlines
Deal found 16/9C$ 818
mié. 15/105:50 p.m.LHR - YOW
1 stop11h 32mKLM
jue. 6/115:20 p.m.YOW - LHR
2 stops12h 25mKLM
Deal found 14/9C$ 833
jue. 23/105:50 p.m.LHR - YOW
1 stop11h 32mMultiple Airlines
jue. 30/106:20 p.m.YOW - LHR
1 stop15h 25mMultiple Airlines
Deal found 14/9C$ 834
mar. 14/105:50 p.m.LHR - YOW
1 stop11h 32mMultiple Airlines
jue. 23/105:15 p.m.YOW - LHR
1 stop9h 45mMultiple Airlines
Deal found 15/9C$ 837
mar. 30/92:45 p.m.LHR - YOW
2 stops14h 37mMultiple Airlines
vie. 28/115:20 p.m.YOW - LHR
1 stop12h 10mMultiple Airlines
Deal found 15/9C$ 845
mar. 30/96:50 a.m.LHR - YOW
2 stops13h 14mAir Canada
jue. 27/118:25 p.m.YOW - LHR
2 stops19h 10mAir Canada
Deal found 16/9C$ 854

Cheapflights Fare Finder

 
Customize 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 629,999 searches. Data last updated 16 septiembre 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

mar. 30/9

5:50 p.m.-12:22 a.m.

1 stop11h 32m

Ottawa

jue. 27/11

5:20 p.m.-10:45 a.m.

2 stops12h 25m

C$ 798

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

jue. 6/11

6:30 a.m.-3:10 p.m.

2 stops13h 40m

Ottawa

jue. 20/11

5:20 p.m.-10:45 a.m.

2 stops12h 25m

C$ 808

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

jue. 23/10

5:50 p.m.-12:22 a.m.

1 stop11h 32m

Ottawa

jue. 30/10

6:20 p.m.-1:45 p.m.

1 stop15h 25m

C$ 834

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

dom. 26/10

4:00 p.m.-12:42 a.m.

1 stop12h 42m

Ottawa

mar. 4/11

5:30 p.m.-1:45 p.m.

1 stop15h 15m

C$ 837

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

mar. 14/10

5:50 p.m.-12:22 a.m.

1 stop11h 32m

Ottawa

jue. 23/10

5:15 p.m.-8:00 a.m.

1 stop9h 45m

C$ 837

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

mié. 29/10

6:30 a.m.-4:10 p.m.

2 stops13h 40m

Ottawa

mié. 5/11

5:20 p.m.-10:45 a.m.

2 stops12h 25m

C$ 869

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

jue. 9/10

2:05 p.m.-4:25 p.m.

Nonstop7h 20m

Ottawa

dom. 12/10

9:55 p.m.-9:00 p.m.

2 stops18h 05m

C$ 913

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

mié. 8/10

9:30 a.m.-8:17 p.m.

2 stops15h 47m

Ottawa

mié. 22/10

9:00 p.m.-8:35 a.m.

Nonstop6h 35m

C$ 917

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

mar. 7/10

9:30 a.m.-8:17 p.m.

2 stops15h 47m

Ottawa

mié. 22/10

2:40 p.m.-6:30 a.m.

1 stop10h 50m

C$ 917

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

mar. 28/10

6:50 a.m.-5:37 p.m.

2 stops14h 47m

Ottawa

lun. 3/11

8:25 p.m.-8:35 p.m.

2 stops19h 10m

C$ 924

Flights are sorted by cheapest round-trip flights first.

Deals found on 14/9

Showing 1-10 of 20 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 round-trip 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 round-trip flight from Heathrow to Ottawa. Price data was last updated on 12 September 2025.

The price you pay for your flight from London Heathrow Airport to Ottawa may vary depending on when you book. For the best chance of a lower fare, look to book 88 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, October is the cheapest month in which you can book a flight from London Heathrow Airport to Ottawa (average of C$ 224). Flying from London Heathrow Airport to Ottawa in December is currently the most expensive (average of C$ 326). 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 16 septiembre 2025.

It’s typically best to fly out from London Heathrow Airport to Ottawa in the morning. Doing so could potentially save you 14% on the flight price compared to flying in the afternoon, which is usually more expensive.

How much does it cost to fly round-trip from London Heathrow Airport to Ottawa?

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 16 septiembre 2025.
Read through reviews of airlines operating flights from London Heathrow Airport to Ottawa, such as Air France,Air Canada, andLufthansa. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Air France
7.4
Good
1,468 reviews
Check prices

Comfort

7.4

Overall

7.4

Boarding

7.4

Entertainment

7.0

Food

7.0

Crew

8.2

Reviews

1 / 20
10.0
Excellent

SYLVIA,Apr 2025

TLV - CDG

A newer plane. The flight from TelAviv to Paris was on a new aircraft, wider seat. ,more privacy. Nice toilets. The flight from Paris to Santiago Chile was on a very old aircraft. Awful toilets, outmoded sits etc.
Air France
7.4
Good
1,468 reviews
Air France
7.4
Good
1,468 reviews
Check prices

Comfort

7.4

Overall

7.4

Boarding

7.4

Entertainment

7.0

Food

7.0

Crew

8.2

Reviews

1 / 20
10.0
Excellent

SYLVIA,Apr 2025

TLV - CDG

A newer plane. The flight from TelAviv to Paris was on a new aircraft, wider seat. ,more privacy. Nice toilets. The flight from Paris to Santiago Chile was on a very old aircraft. Awful toilets, outmoded sits etc.
Air Canada
7.1
Good
10,000 reviews
Air France
7.4
Good
1,468 reviews
Check prices

Comfort

7.4

Overall

7.4

Boarding

7.4

Entertainment

7.0

Food

7.0

Crew

8.2

Reviews

1 / 20
10.0
Excellent

SYLVIA,Apr 2025

TLV - CDG

A newer plane. The flight from TelAviv to Paris was on a new aircraft, wider seat. ,more privacy. Nice toilets. The flight from Paris to Santiago Chile was on a very old aircraft. Awful toilets, outmoded sits etc.
Lufthansa
6.8
Okay
7,407 reviews
Air France
7.4
Good
1,468 reviews
Check prices

Comfort

7.4

Overall

7.4

Boarding

7.4

Entertainment

7.0

Food

7.0

Crew

8.2

Reviews

1 / 20
10.0
Excellent

SYLVIA,Apr 2025

TLV - CDG

A newer plane. The flight from TelAviv to Paris was on a new aircraft, wider seat. ,more privacy. Nice toilets. The flight from Paris to Santiago Chile was on a very old aircraft. Awful toilets, outmoded sits etc.

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?

    Located just 10.6 km from the city centre, Ottawa is the airport most travellers will use when flying to Ottawa from London Heathrow. Booking flights from London Heathrow to Ottawa (YOW) should be relatively easy as there are 2 daily inbound flights from London Heathrow from 3 different airlines.

  • How long is the flight from London Heathrow Airport to Ottawa?

    There are many flights that can get you from London Heathrow Airport to Ottawa in 11h 32m. Fly via KLM to get the fastest option. The distance from London Heathrow Airport to Ottawa is about 5343 km.

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

    Air France, at C$ 736, was found to be the cheapest airline from London Heathrow Airport to Ottawa.Alternate airlines to your destination round-trip include Air Canada and Lufthansa. Users have found that Air France is 28% cheaper than the other options available to this destination.

  • What are the most reliable airlines from London Heathrow Airport to Ottawa?

    The top 3 most reliable airlines when flying from London Heathrow Airport to Ottawa are Air Canada (80%), Aegean Airlines (80%) and Austrian Airlines (80%).

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

    Looking for the cheapest flight from London Heathrow Airport to Ottawa? While on average our users pay C$ 1,057, our data indicates the cheapest price to be C$ 700. The most popular route (London Heathrow - Ottawa), is priced around C$ 703.

  • 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 vacation 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, October is the cheapest month in which you can book a flight from London Heathrow Airport to Ottawa (average of C$ 224). Flying from London Heathrow Airport to Ottawa in December is currently the most expensive (average of C$ 326). 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 Ottawa?

Book flights to Ottawa if you plan to visit one of these locations
Gatineau
Brockville
Smiths Falls
Perth
Prescott
Pembroke
Wakefield

Browse thousands of different options on Cheapflights for your next trip

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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
Luton to Pearson Intl flights
Heathrow to Pierre Elliott Trudeau Intl flights
Stansted to Pearson Intl flights
London City to Pierre Elliott Trudeau Intl flights
Gatwick to Pierre Elliott Trudeau Intl flights
Luton to Pierre Elliott Trudeau Intl flights
Stansted to Pierre Elliott Trudeau Intl flights
Gatwick to Ottawa flights
Southend to Pierre Elliott Trudeau Intl flights
Southend to Pearson Intl flights
Heathrow to Hamilton flights
Heathrow to London flights
Heathrow to Windsor flights
Stansted to Ottawa flights
Heathrow to Thunder Bay flights
Gatwick to Region of Waterloo Intl flights
Gatwick to Hamilton flights

Top 3 airlines flying from Heathrow to Ottawa

Discover the top 3 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 629,999 searches. Data last updated 16 septiembre 2025.
AirlineCheapestAverageFlexibilityOn-time
Air FranceCheapestC$ 736AverageC$ 1,002FlexibilityNo cancel feeOn-time77%
Search Air France flights
Air CanadaCheapestC$ 801AverageC$ 1,034FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
LufthansaCheapestC$ 854AverageC$ 964FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights

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

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

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

Yes! Cheapflights helps users easily find flights from Heathrow to Ottawa with no change fees.

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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