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Cheap flights from Ottawa to London Heathrow Airport from £353

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 21/7. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
YOW — LHR
2 May — 9 May1
1 adult
Thu 2/5
Thu 9/5

The best prices from Ottawa to London Heathrow are usually found in January or February, booked 76 days in advance, depart on a Thursday or Saturday and return on a Monday

Cheap flight deals from Ottawa to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Ottawa (YOW) to Heathrow (LHR). 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 27 April 2024.

Popular in

December

Cheapest in

January

Average price

£638

Round-trip from

£71
High demand for flights, 17% potential price rise
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Best time to find cheap flights, 14% potential price drop
Search Deals
Average for round-trip flights in April 2024
Search Deals
From Ottawa to London Heathrow
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What is the cheapest day to fly round-trip from Ottawa to London Heathrow Airport?

It’s generally more expensive to depart on a Wednesday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.

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

Find a great deal and save up to 40% by booking at least 42 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Ottawa to London Heathrow Airport within the next two weeks, with the cheapest ticket starting at £600.

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

Our data shows that January tends to be the cheapest month to fly to London Heathrow Airport from Ottawa. Users have commonly found prices around £651 for the month, but tickets can be as low as £530. Due to multiple factors, prepare for potentially higher prices in December.

When is the cheapest time to fly from Ottawa to London Heathrow Airport (YOW - LHR)?

One of the essential ways to save on airfare from Ottawa to London Heathrow Airport is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight in the afternoon could potentially save you up to 9% on airfare.

Cheap Air Canada flights from Ottawa to Heathrow

Explore cheap flight options specifically provided by Air Canada for the route between Ottawa and Heathrow. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 925,685 searches. Data last updated 27 April 2024.
Consider these cheap Air Canada flights we've found departing from Ottawa to London. It's recommended that users confirm their flight details before booking.
Tue 14/513:25YOW - LHR
1 stop12h 05mAir Canada
Mon 10/614:05LHR - YOW
1 stop23h 37mAir Canada
Deal found 26/4£608
Tue 4/607:00YOW - LHR
1 stop9h 00mAir Canada
Tue 11/609:30LHR - YOW
1 stop13h 10mAir Canada
Deal found 26/4£610
Mon 6/507:00YOW - LHR
1 stop9h 00mAir Canada
Wed 22/508:30LHR - YOW
1 stop15h 47mAir Canada
Deal found 26/4£612
Tue 7/507:00YOW - LHR
1 stop9h 00mAir Canada
Tue 14/508:30LHR - YOW
1 stop14h 47mAir Canada
Deal found 26/4£613
Tue 7/507:00YOW - LHR
1 stop9h 00mAir Canada
Tue 28/509:30LHR - YOW
2 stops13h 25mAir Canada
Deal found 26/4£626
Sun 19/512:50YOW - LHR
1 stop27h 10mAir Canada
Wed 12/609:30LHR - YOW
1 stop13h 10mAir Canada
Deal found 26/4£626
Tue 14/513:25YOW - LHR
1 stop12h 05mAir Canada
Thu 23/509:30LHR - YOW
1 stop13h 10mAir Canada
Deal found 26/4£630
Thu 5/911:00YOW - LHR
1 stop14h 30mAir Canada
Tue 17/909:30LHR - YOW
1 stop13h 00mAir Canada
Deal found 26/4£631
Sat 18/521:00YOW - LHR
1 stop9h 50mAir Canada
Wed 5/615:50LHR - YOW
1 stop21h 52mAir Canada
Deal found 26/4£634

Cheap United Airlines flights from Ottawa to Heathrow

Explore cheap flight options specifically provided by United Airlines for the route between Ottawa and Heathrow. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 925,685 searches. Data last updated 27 April 2024.
Take a gander at the lowest prices we've found on United Airlines flights from Ottawa to London. Check back soon if you're not seeing flights that suit your needs.
Tue 9/710:40YOW - LHR
1 stop15h 05mUnited Airlines
Tue 30/709:30LHR - YOW
2 stops19h 29mUnited Airlines
Deal found 26/4£774
Mon 6/514:47YOW - LHR
2 stops14h 23mUnited Airlines
Wed 22/513:05LHR - YOW
1 stop13h 27mUnited Airlines
Deal found 26/4£806
Thu 2/517:24YOW - LHR
1 stop13h 21mUnited Airlines
Sun 12/506:00LHR - YOW
2 stops17h 55mUnited Airlines
Deal found 25/4£4,503

Cheap Ottawa to Heathrow flights in April & May 2024

Find cheap flight options from Ottawa to Heathrow specifically for the months of April and May 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 925,685 searches. Prices were last updated on 27 April 2024.
Check out some of the best flight deals from Ottawa to London in 2024. If these deals don't appeal to you, be sure to come back soon for more options.
Tue 28/518:40YOW - LHR
1 stop10h 20mMultiple Airlines
Wed 5/607:00LHR - YOW
2 stops15h 40mMultiple Airlines
Deal found 25/4£603
Tue 28/513:25YOW - LHR
1 stop12h 05mAir Canada
Wed 5/609:30LHR - YOW
1 stop13h 10mAir Canada
Deal found 25/4£607
Tue 14/513:25YOW - LHR
1 stop12h 05mAir Canada
Mon 10/614:05LHR - YOW
1 stop23h 37mAir Canada
Deal found 26/4£608
Wed 15/509:30YOW - LHR
1 stop16h 00mMultiple Airlines
Wed 22/508:30LHR - YOW
1 stop15h 47mMultiple Airlines
Deal found 25/4£612
Tue 7/507:00YOW - LHR
1 stop9h 00mAir Canada
Tue 14/508:30LHR - YOW
1 stop14h 47mAir Canada
Deal found 26/4£613
Sun 19/512:50YOW - LHR
1 stop27h 10mAir Canada
Wed 12/609:30LHR - YOW
1 stop17h 36mAir Canada
Deal found 25/4£625
Tue 7/507:00YOW - LHR
1 stop9h 00mAir Canada
Tue 28/509:30LHR - YOW
2 stops13h 25mAir Canada
Deal found 26/4£626
Tue 14/513:25YOW - LHR
1 stop12h 05mAir Canada
Thu 23/509:30LHR - YOW
1 stop13h 10mAir Canada
Deal found 25/4£629
Sun 19/512:50YOW - LHR
1 stop27h 10mMultiple Airlines
Wed 29/508:30LHR - YOW
1 stop21h 02mMultiple Airlines
Deal found 26/4£630

Ottawa to Heathrow 2024 flight deals

Discover exclusive flight deals for travel between Ottawa and Heathrow in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 925,685 searches. Data last updated 27 April 2024.
Check out some of the best flight deals from Ottawa to London in 2024. If these deals don't appeal to you, be sure to come back soon for more options.
Tue 5/1106:00YOW - LHR
1 stop19h 15mMultiple Airlines
Tue 12/1111:45LHR - YOW
1 stop17h 38mMultiple Airlines
Deal found 24/4£590
Tue 28/518:40YOW - LHR
1 stop10h 20mMultiple Airlines
Wed 5/607:00LHR - YOW
2 stops15h 40mMultiple Airlines
Deal found 25/4£603
Sat 9/1112:30YOW - LHR
1 stop13h 40mAir Canada
Sun 17/1113:25LHR - YOW
2 stops12h 47mAir Canada
Deal found 24/4£607
Tue 14/513:25YOW - LHR
1 stop12h 05mAir Canada
Mon 10/614:05LHR - YOW
1 stop23h 37mAir Canada
Deal found 26/4£608
Tue 27/808:10YOW - LHR
2 stops30h 15mSWISS
Tue 10/913:45LHR - YOW
2 stops32h 45mSWISS
Deal found 25/4£609
Tue 4/607:00YOW - LHR
1 stop9h 00mAir Canada
Tue 11/609:30LHR - YOW
1 stop13h 10mAir Canada
Deal found 26/4£610
Wed 15/509:30YOW - LHR
1 stop16h 00mMultiple Airlines
Wed 22/508:30LHR - YOW
1 stop15h 47mMultiple Airlines
Deal found 25/4£612
Tue 7/507:00YOW - LHR
1 stop9h 00mAir Canada
Tue 14/508:30LHR - YOW
1 stop14h 47mAir Canada
Deal found 26/4£613
Tue 27/813:25YOW - LHR
1 stop12h 05mAir Canada
Tue 10/906:50LHR - YOW
2 stops15h 40mAir Canada
Deal found 25/4£618

Ottawa to Heathrow flights leaving soon

Find last-minute flight options from Ottawa to Heathrow for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 925,685 searches. Data last updated 27 April 2024.
Check out these flights departing soon from Ottawa to London. Users should double check the flight they book to ensure it matches the day, time, and destination they're looking for.
Mon 6/507:00YOW - LHR
1 stop9h 00mAir Canada
Wed 22/508:30LHR - YOW
1 stop15h 47mAir Canada
Deal found 26/4£612
Mon 6/507:00YOW - LHR
1 stop9h 00mAir Canada
Mon 27/508:30LHR - YOW
2 stops22h 02mAir Canada
Deal found 26/4£635
Mon 6/507:00YOW - LHR
1 stop9h 00mAir Canada
Mon 27/509:30LHR - YOW
1 stop28h 55mAir Canada
Deal found 26/4£666
Mon 6/512:00YOW - LHR
2 stops13h 30mAir Canada
Mon 27/509:30LHR - YOW
2 stops12h 49mAir Canada
Deal found 26/4£741
Mon 6/507:10YOW - LHR
2 stops24h 45mMultiple Airlines
Wed 22/520:30LHR - YOW
3 stops26h 47mMultiple Airlines
Deal found 26/4£764
Mon 6/514:00YOW - LHR
2 stops24h 55mScandinavian Airlines
Wed 22/521:05LHR - YOW
2 stops26h 12mScandinavian Airlines
Deal found 26/4£794
Mon 6/514:47YOW - LHR
2 stops14h 23mUnited Airlines
Wed 22/513:05LHR - YOW
1 stop13h 27mUnited Airlines
Deal found 26/4£806
Mon 6/507:10YOW - LHR
2 stops24h 45mMultiple Airlines
Mon 27/506:40LHR - YOW
3 stops16h 37mMultiple Airlines
Deal found 26/4£888
Fri 3/516:35YOW - LHR
2 stops14h 20mMultiple Airlines
Sun 12/506:30LHR - YOW
2 stops24h 02mMultiple Airlines
Deal found 25/4£2,763

One-way flights to Heathrow from Ottawa

Search for one-way flight options from Ottawa to Heathrow. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 925,685 searches. Data last updated 27 April 2024.
Take a look at some of the best available options we've come across on one-way flights from Ottawa to London. Users can also find round-trip Ottawa to London flights by using the search form above.
Sun 21/720:00YOW - LHR
2 stops14h 55mMultiple Airlines
Deal found 26/4£353
Sun 21/720:15YOW - LHR
1 stop34h 50mWestJet
Deal found 26/4£455
Mon 17/621:35YOW - LHR
3 stops31h 45mMultiple Airlines
Deal found 26/4£478
Mon 17/615:55YOW - LHR
1 stop15h 10mWestJet
Deal found 26/4£513
Mon 17/617:00YOW - LHR
2 stops12h 45mKLM
Deal found 26/4£560
Sun 21/721:35YOW - LHR
3 stops38h 20mMultiple Airlines
Deal found 26/4£602

Find flights from Ottawa to Heathrow within your budget

Customise your flight search to find flights from Ottawa to Heathrow 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 925,685 searches. Data last updated 27 April 2024.

Fly from

Any airport

Fly to

Any airport

Budget

£608 - £848

Route

Depart

Return

Price

OttawaLondon Heathrow

YOW - LHR

YOWLHR

Ottawa

Tue 14/5

1 stop12h 05m

London Heathrow

Mon 10/6

1 stop23h 37m

£608

OttawaLondon Heathrow

YOW - LHR

YOWLHR

Ottawa

Tue 4/6

1 stop9h 00m

London Heathrow

Tue 11/6

1 stop13h 10m

£610

OttawaLondon Heathrow

YOW - LHR

YOWLHR

Ottawa

Sun 19/5

1 stop27h 10m

London Heathrow

Wed 29/5

1 stop15h 47m

£614

OttawaLondon Heathrow

YOW - LHR

YOWLHR

Ottawa

Tue 3/9

2 stops13h 50m

London Heathrow

Tue 17/9

2 stops15h 48m

£619

OttawaLondon Heathrow

YOW - LHR

YOWLHR

Ottawa

Tue 22/10

2 stops19h 20m

London Heathrow

Sun 27/10

2 stops26h 09m

£715

OttawaLondon Heathrow

YOW - LHR

YOWLHR

Ottawa

Tue 21/5

2 stops17h 45m

London Heathrow

Sun 26/5

2 stops26h 32m

£718

OttawaLondon Heathrow

YOW - LHR

YOWLHR

Ottawa

Tue 9/7

1 stop15h 05m

London Heathrow

Tue 30/7

2 stops19h 29m

£774

OttawaLondon Heathrow

YOW - LHR

YOWLHR

Ottawa

Fri 12/7

2 stops17h 55m

London Heathrow

Tue 30/7

2 stops16h 33m

£846

OttawaLondon Heathrow

YOW - LHR

YOWLHR

Ottawa

Sat 18/5

2 stops30h 15m

London Heathrow

Sat 25/5

2 stops34h 35m

£848

Flights are sorted by cheapest first

Deals found on 26/4

When is the best time to book a flight from Ottawa to London Heathrow Airport?

Use this chart to determine the optimal time to book a return flight from Ottawa to Heathrow. Price data was last updated on 28 January 2024.
Booking 76 days in advance of your planned departure date is, on average, the best time to get cheap flights from Ottawa to London Heathrow Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Search Deals

When is the cheapest time to fly from Ottawa to London Heathrow Airport?

Use this chart to determine the cheapest time to fly return from Ottawa to Heathrow. Price data was last updated on 21 April 2024.
Morning
Midday
Afternoon
Evening
All times are departure.
Travellers seeking maximum savings on their Ottawa to London Heathrow Airport flight should consider departing on Monday evenings when fares are most often at their lowest. Thursday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Average price of flights to Heathrow by month

Plan your trip from Ottawa to Heathrow by taking into account the cheapest months to travel. The average price of a one-way flight from Ottawa to Heathrow is currently £493 while a return flight costs £706. Price data was last updated on 21 April 2024.

Currently, January is the cheapest month in which you can book a flight from Ottawa to London Heathrow Airport (average of £111). Flying from Ottawa to London Heathrow Airport in June is currently the most expensive (average of £171). 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.

January

£89

February

£100

March

£95

April

£100

May

£110

June

£137

July

£137

August

£116

September

£110

October

£127

November

£92

December

£97

Temperature and rainfall in Heathrow by month

Plan your trip to Heathrow by taking into account the average temperature and rainfall totals by month.

LON

Temperature

4 - 17 °C

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. 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 Heathrow. Reviews last updated 27 April 2024.
See what other customers who have flown with Air Canada, United Airlines and Lufthansa from Ottawa to London have to say. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.9
Good
1,626 reviews
Check prices

Food

7.3

Comfort

7.6

Crew

8.4

Entertainment

7.2

Boarding

7.8

Overall

7.9

Reviews

1 / 10

Departure was late. Plane much too small for an 11 hour flight. One bathroom was out of order in a completely full flight.

KLM
7.9
Good
1,626 reviews
KLM
7.9
Good
1,626 reviews
Check prices

Food

7.3

Comfort

7.6

Crew

8.4

Entertainment

7.2

Boarding

7.8

Overall

7.9

Reviews

1 / 10

Departure was late. Plane much too small for an 11 hour flight. One bathroom was out of order in a completely full flight.

SWISS
7.8
Good
2,061 reviews
KLM
7.9
Good
1,626 reviews
Check prices

Food

7.3

Comfort

7.6

Crew

8.4

Entertainment

7.2

Boarding

7.8

Overall

7.9

Reviews

1 / 10

Departure was late. Plane much too small for an 11 hour flight. One bathroom was out of order in a completely full flight.

Austrian Airlines
7.7
Good
1,085 reviews
KLM
7.9
Good
1,626 reviews
Check prices

Food

7.3

Comfort

7.6

Crew

8.4

Entertainment

7.2

Boarding

7.8

Overall

7.9

Reviews

1 / 10

Departure was late. Plane much too small for an 11 hour flight. One bathroom was out of order in a completely full flight.

WestJet
7.5
Good
2,981 reviews
KLM
7.9
Good
1,626 reviews
Check prices

Food

7.3

Comfort

7.6

Crew

8.4

Entertainment

7.2

Boarding

7.8

Overall

7.9

Reviews

1 / 10

Departure was late. Plane much too small for an 11 hour flight. One bathroom was out of order in a completely full flight.

Scandinavian Airlines
7.4
Good
1,429 reviews
KLM
7.9
Good
1,626 reviews
Check prices

Food

7.3

Comfort

7.6

Crew

8.4

Entertainment

7.2

Boarding

7.8

Overall

7.9

Reviews

1 / 10

Departure was late. Plane much too small for an 11 hour flight. One bathroom was out of order in a completely full flight.

Related info for your journey

Find useful and relevant information for your journey from Ottawa to Heathrow. 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 from for flights from Ottawa to London Heathrow?

    If you book a flight to London Heathrow from Ottawa, you will be flying from Ottawa, which is the city’s only airport. Ottawa (YOW) is located 6.6 mi from the center of Ottawa. There are 0 flights from Ottawa to London Heathrow per day from 1 airline.

  • Can I find flights from Ottawa to London Heathrow Airport for under £700 on Cheapflights?

    Yes, there are multiple flights from Ottawa to London Heathrow Airport for under £700. The cheapest flight booked recently is on Air Canada for just £608, but on average you can expect to pay £627.

  • Are there last-minute flights available from Ottawa to London Heathrow Airport for under £700?

    There are currently 14+ open flights from Ottawa to London Heathrow Airport within the next 7 days for less than £700.

  • What is the cheapest airline to fly from Ottawa to London Heathrow Airport round-trip?

    According to our current data, Air Canada (£608), offers the cheapest pricing from Ottawa to London Heathrow Airport. You may be able to fly from Ottawa to London Heathrow Airport for 8% less than the average price by searching for this airline.

  • What does YOW to LHR mean?

    YOW stands for Ottawa Airport, while LHR stands for London Heathrow Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry.

  • Can I find deals for flights from Ottawa to Heathrow that include extra baggage allowance?

    The amount of baggage you can bring on your Ottawa to Heathrow flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Ottawa to Heathrow with specific airlines?

    Yes, Cheapflights allows you to browse and filter Ottawa to Heathrow flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Ottawa to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Ottawa to Heathrow that allow pets onboard?

    Many airlines flying from Ottawa to Heathrow offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Ottawa to Heathrow?

    Yes, you can often find last-minute deals on Ottawa to Heathrow flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Ottawa to London Heathrow Airport flight deals updated?

    The Ottawa to London Heathrow Airport flight deals you see on this page were last updated on 26/4.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Ottawa to Heathrow

Discover the top airline that operate flights from Ottawa to Heathrow. 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 925,685 searches. Data last updated 27 April 2024.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest£540Average£646FlexibilityNo cancel feeOn-time67%
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Search flights from Ottawa to Heathrow by cabin class

Find flights from Ottawa to Heathrow, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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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 Ottawa to Heathrow?

When you search for this flight from Ottawa to Heathrow, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

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

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

Users can book flights with no change fees policies with our dedicated filters. Book flights from Ottawa to Heathrow flexibly with Cheapflights today.

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

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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