LON - YOW

$368 Find Cheap Flights from London to Ottawa

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from London to Ottawa departing on 10/12. 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.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Ottawa

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Ottawa, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Ottawa, as well as popular online travel agencies
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Flight Deals

Cheap Flights from London to Ottawa (LON-YOW)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from London to Ottawa that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from London to Ottawa

Fri, Oct 10 - Mon, Oct 13
 Logo
11:35 am - 12:22 amLGW-YOW
17h 47m2 stops
 Logo
5:55 am - 9:50 amYOW-LGW
22h 55m2 stops
Fri, Oct 10 - Mon, Oct 13
 Logo
11:35 am - 12:22 amLGW-YOW
17h 47m2 stops
 Logo
5:55 am - 10:45 amYOW-LGW
23h 50m1 stop
Sun, Oct 5 - Tue, Oct 7
 Logo
8:55 am - 1:03 pmLGW-YOW
33h 08m3 stops
 Logo
10:50 am - 6:20 amYOW-LGW
14h 30m1 stop
Wed, Mar 11 - Sun, Mar 15
Lufthansa Logo
7:40 am - 6:38 pmLHR-YOW
14h 58m2 stops
Lufthansa Logo
6:20 pm - 7:10 amYOW-LHR
8h 50m1 stop
$705Lufthansa
Find Deal
Wed, Oct 1 - Mon, Oct 6
United Airlines Logo
5:50 pm - 6:52 pmLHR-YOW
30h 02m2 stops
United Airlines Logo
11:55 am - 11:45 amYOW-LHR
18h 50m2 stops
$707United Airlines
Find Deal
Wed, Mar 11 - Sun, Mar 15
Virgin Atlantic Logo
7:25 pm - 4:10 pmLHR-YOW
24h 45m1 stop
Virgin Atlantic Logo
6:20 pm - 4:35 pmYOW-LHR
18h 15m1 stop
$711Virgin Atlantic
Find Deal
Wed, Mar 11 - Sun, Mar 15
Lufthansa Logo
7:40 am - 6:38 pmLHR-YOW
14h 58m2 stops
Lufthansa Logo
7:25 pm - 11:20 amYOW-LHR
11h 55m1 stop
$712Lufthansa
Find Deal
Wed, Mar 11 - Sun, Mar 15
Virgin Atlantic Logo
7:25 pm - 4:10 pmLHR-YOW
24h 45m1 stop
Virgin Atlantic Logo
6:20 pm - 9:25 pmYOW-LHR
23h 05m1 stop
$713Virgin Atlantic
Find Deal
Tue, Oct 28 - Tue, Nov 4
United Airlines Logo
8:00 am - 9:18 pmLHR-YOW
17h 18m2 stops
United Airlines Logo
10:30 am - 6:20 amYOW-LHR
14h 50m2 stops
$722United Airlines
Find Deal
Sat, Oct 4 - Fri, Oct 10
Air Canada Logo
9:30 am - 10:04 pmLHR-YOW
17h 34m1 stop
Air Canada Logo
5:50 pm - 11:25 amYOW-LHR
12h 35m1 stop
$759Air Canada
Find Deal

Everything you should know

Top airlines
Lufthansa
Cheapest • from $705 (round-trip)
Air Canada
Best reviews • 7.1 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Top routes
LHR-YOW
Cheapest
LHR-YOW
Most popular
Insights
Insights
Insights
Insights
When to book
3 weeks
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 10% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
January
Cheapest • 14% price drop
July
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Nonstop flights
4 days a week
There are direct flights from London to Ottawa 4 days a week: Mon, Wed, Thu, Sat.
Direct flights
Direct flights
Direct flights
Direct flights
Cheapest round-trip
$616
Multiple Airlines
Fri 10/10Mon 10/13
LGW - YOW • 2 stops
Cheapest non-stop
$718
Lufthansa
Thu 10/9Mon 10/13
LHR - YOW • Non-stop
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Ottawa!
Booking Insights

KAYAK's insights & trends for London to Ottawa flights

Get data-powered insights and trends into flights from London to Ottawa to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from London to Ottawa?

What is the cheapest London to Ottawa flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest return flight from London to Ottawa costs $646 on the route between London Heathrow Airport (LHR) and Ottawa (YOW). It is also the most popular route.

What’s the cheapest day of the week to fly from London to Ottawa?

The average price of all round-trip flights from London to Ottawa clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to Ottawa on a Thursday and more expensive on a Monday. On your return trip to London, you should consider flying back on a Saturday, and avoid Mondays for better deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London to Ottawa, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from London to Ottawa is January, where tickets cost $629 (return) on average. On the other hand, the most expensive months are August and December, where the average cost of round-trip tickets is $998 and $903 respectively.

Can I save money by flying with a layover from London to Ottawa?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $695 on average.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from London to Ottawa, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from London to Ottawa, you should book around 3 weeks before departure, which saves you about 10% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 13 weeks before departure.

Good to know

Low seasonNovember
Best time to beat the crowds with an average 8% drop in price.
Most popular time to fly with an average 13% increase in price.

When to book flights from London to Ottawa

Are your dates flexible? Find out the best times to travel from London to Ottawa based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from London to Ottawa

  • Can I take a direct flight between London airports and Ottawa Airport?

    Unfortunately you cannot fly directly between these two cities, but there are plenty of indirect routes you can take that only require one stop. You can fly, for example, with WestJet from London Gatwick Airport, which requires a transfer at Toronto Pearson International first. Alternatively, you could fly from Heathrow Airport with Air Canada, which also has a change in Toronto.

  • Can I fast track through security at London airports?

    If you are going to be in a rush at the airport, or should you be travelling at peak times, there is always the option to fast track through security. You need to book at least 24h in advance, and it will cost about £4 at Luton and around £5 at Stansted and Gatwick. For flights from Heathrow, it costs approximately £12.50 to fast track through security.

  • Can I change my currency at London airports?

    Once you have arrived at London airports for your flight, you can use currency exchange bureaus to change your money to Canadian Dollars. If you fly with Air Canada from Heathrow, you will most likely depart from Terminal 2, so you can access the Travelex bureaus and ATMs. From other airports with indirect flights, you can use an International Currency Exchange store or ATM. These are situated prominently in the terminals, so they will be easy to find.

  • How do I get to the city centre from Ottawa Airport?

    It’s easy to get from the airport to the centre as there are many methods of transport to choose from. You can get the Ottawa Airport Bus route 97 from the front of the building. This takes about 30min and costs approx. C$3.30 (£1.90). Alternatively, you could get a taxi from the taxi rank outside the front of the terminal building which takes about 15min and costs around C$29 (£16.75).

  • What is the cheapest flight from London to Ottawa?

    In the last 3 days, the lowest price for a flight from London to Ottawa was $368 for a one-way ticket and $616 for a round-trip.

  • Do I need a passport to fly between London and Ottawa?

    Yes, you'll most likely have to show a valid passport before boarding the plane in London and on arrival in Ottawa.

  • Which airlines offer Wi-Fi service onboard planes from London to Ottawa?

    Air Canada, Lufthansa, Air France, and KLM offer inflight Wi-Fi service on the London to Ottawa flight route.

  • Which aircraft models fly most regularly from London to Ottawa?

    The Boeing 777-200LR is the aircraft model that flies most regularly on the London to Ottawa flight route.

  • Which airline alliances offer flights from London to Ottawa?

    Star Alliance, and oneworld are the airline alliances operating flights between London and Ottawa, with Star Alliance being the most commonly used for this route.

  • On which days can I fly direct from London to Ottawa?

    You can catch a nonstop flight from London to Ottawa on on Monday, Wednesday, Thursday, and Saturday.

  • Which is the best airline for flights from London to Ottawa, Air Canada or Lufthansa?

    The two airlines most popular with KAYAK users for flights from London to Ottawa are Air Canada and Lufthansa. With an average price for the route of $716 and an overall rating of 7.1, Air Canada is the most popular choice. Lufthansa is also a great choice for the route, with an average price of $771 and an overall rating of 6.8.

  • How does KAYAK find such low prices on flights from London to Ottawa?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from London to Ottawa.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from London to Ottawa?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ottawa from London is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from London to Ottawa?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Ottawa with an airline and back to London with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London to Ottawa?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ottawa from London up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from London to Ottawa

  • Looking for a cheap flight? 25% of our users found flights on this route for $676 or less one-way and $656 or less round-trip.
  • There are two airports in London that serve the route to Ottawa International Airport (YOW) with one stop. With London Heathrow (LHR) being located so centrally, it makes it very convenient for those travelling on business. Whereas Gatwick is great for those coming from the south of London.
  • Save time on the day of your flight by staying in an airport hotel the night before. If you're flying with Air Canada from Heathrow, then you can opt for a hotel such as Aerotel, which is only a short walk from Terminal 2. At Gatwick you could stay at Hilton, which is also close to the terminal building.
  • From Ottawa Airport, it is easy to continue your journey to nearby cities, such as Cornwall in about 70min and Kingston in about 2h, which makes it a great airport if you are planning to continue your journey to other Canadian cities.
  • Before your flight to Ottawa Airport, you can relax in a peaceful lounge, such as the Aspire Lounges in Heathrow Airport, Gatwick Airport and Luton Airport (LTN), which provide complimentary snacks and Wi-Fi from about £25 per person. The Escape lounge in Stansted (STN) offers similar benefits for about £20. However, there are no lounges at London city Airport.
  • You can call up 48h in advance of your flight to get mobility assistance at London Airports. They will either greet you on arrival or you can locate the assistance reception desks in the check-in zones of the departures hall.

Prefer to fly direct from London to Ottawa?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from London to Ottawa.
Find which airlines fly direct from London to Ottawa Airport, which days they fly and book direct flights.

Direct departures

London to Ottawa

Monday

Air Canada

Air Canada

Wednesday

Air Canada

Air Canada

Thursday

Air Canada

Air Canada

Saturday

Air Canada

Air Canada

See more direct flights

Direct returns

Ottawa to London

Monday

Air Canada

Air Canada

Wednesday

Air Canada

Air Canada

Thursday

Air Canada

Air Canada

Saturday

Air Canada

Air Canada

See more direct flights

Reviews of the top airlines flying from London to Ottawa

 
See real verified KAYAK customer reviews for airlines flying from London to Ottawa. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from London to Ottawa? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.1
Air CanadaOverall score based on 10000 reviews
7.1Comfort
7.8Crew
7.3Boarding
6.8Entertainment
6.3Food
Airline reviews

W ended up getting stuck in Edinburgh Scotland during the air strike. They cancelled our flight and No help to get us rebooked. All said down that cost us over $2,000 extra at least to get home. Hopefully we will be reimbursed somehow! Won’t be flying Air Canada again

2.0 MediocreAnonymous, Aug 2025EDI - YYZ
Read more Air Canada reviews

W ended up getting stuck in Edinburgh Scotland during the air strike. They cancelled our flight and No help to get us rebooked. All said down that cost us over $2,000 extra at least to get home. Hopefully we will be reimbursed somehow! Won’t be flying Air Canada again

The 787 Dreamliner that we flew on was relatively new and a nice aircraft. We flew on a 777 which was noticeably older and the seats were average” but the 787 was very nice, especially for the price. No window blinds anymore, instead high tech adjustable polychromatic glass!! Nice.

the seats aren't the most comfy -- too little padding and I could feel whatever the passenger behind me was doing. Otherwise, it's all good.

This flight didn't happen for me because of overbooking.

Everything was simple and easy. The lady at the gate was super friendly, I wish I had her name to share. She's a little older, dark-haired. You can tell she likes her job and would be a great influence on any young people training with her.

During the pre-departure safety briefing, the flight attendants rushed through the mandatory safety announcements in both official languages, making it difficult for passengers to clearly understand the instructions. Given the importance of these messages for passenger safety, this lack of clarity was concerning. Perhaps use a recoded message to alleviate this concern. Additionally, the flight attendants appeared to lack the professional attentiveness typically expected during a flight. Rather than focusing on timely and courteous service, they seemed more engaged in personal conversations than in addressing the needs of passengers. I hope this feedback is taken constructively and helps in maintaining the high standards of professionalism and care that travelers expect from a national carrier: AC.

an absolute disaster and nightmare on air condition. IT WAS FREEZING!! everyone around us had hats, hoodies, gloves outdoor jackets on. that segment of the aircraft had a fault I assume...no amount of suggestion to turn down the air con helped. otherwise all good.

Everything was very good, short delay Toronto to Regina on my return to Canada but not a big deal. Thanks Kayak, Dr. Ian Stewart

Service is pretty good. Sandwiches have to be purchased but I’ve bought my own food. Seat was comfortable and various movies to chose from.

Boarded smoothly, took off on time. Entertainment screens were reliable and the movie library is abundant. Food better than wtst was served on the first leg of the journey by another airline.

The crew was very nice. The equipment on the 747 felt old.

As expected. Would have appreciated a 3-day headsup reminder as a reassurance that all is well.

Poor food on flight between Toronto and Stockholm Airport Toronto too crowded

The plane was late (as was my flight out from Birmingham the day before)

Business Class Configuration was excellent- private and comfortable. Crew and service were excellent. I really appreciate Air Canada cabin pressurization equal to an altitude of 8,000ft. Upon landing, I felt more alert and refreshed than typical for international flights

Hard to use tables and TV screens interfere with the enjoyment of flight experience. Other than that it was a smooth and comfortable ride and we were well taken care of.

Excellent flight overall. Lufthansa Business service was excellent with great cabin crew and very good food and wines. The seat comfort was excellent. Only a slight reduction in score due to the 747-400 being a relatively loud aircraft these days.

The flight was delayed by an hour. Made the connection uncomfortably tight.

When we went to the lounge they told us to go into the main lounge and not the full business class section, later they told me that Lufthansa wont pay the full fee to alloq the business class passengers entry to the nicer sectikn where all the other airlines nusiness class passengers go into. Very poor arrangement.

Not what I expected for the last leg of a $5100 business class experience. Boarding was a nightmare. The flight was delayed and I had to keep checking my email to ensure I was at the right gate since the airline or the terminal had no clue until 15 mins prior to boarding. Food was gross, limited drink options.

Everything you need to know for your flight from London to Ottawa

Information on your arrival and departure airports

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