LON - YOW

£230 Find Cheap Flights from London to Ottawa – Compare and Save

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Everything you should know

Cheapest return flight
£384
Typical prices: £465-£643
Air Transat
Sat 6/10Thu 11/10
LGW - YOW • 1 stop
Cheapest direct flights
£389
Typical prices: £458-£658
Lufthansa
Mon 8/10Sun 14/10
LHR - YOW • Direct
Direct flights
You can fly direct with Air Canada and Air Transat. Average duration is 7h 57m
Direct flights
+1
Direct flights
+1
Top routes
Cheapest • 10% average savings
Most popular
Insights
Insights
Avoid delays
Most punctual • 90% on-time
Best time • Fewest delays
Insights
Insights
When to book
in advance
Our data shows that travellers who book at least 11 weeks in advance save around 18% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 20% price drop
Most popular
Good to know
+1
Good to know
+1
Top stopover airports
Cheapest • Avg £564 (return)
Shortest trip • 10h 01m (one-way)
Insights
Insights
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We hope you enjoy your trip to Ottawa!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from London to Ottawa (LON-YOW)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from London to Ottawa

Tue, 6 Oct - Sun, 11 Oct
Air Transat Logo
12:40 - 00:25LGW  London Gatwick-YOW Ottawa
16h 45m1 stop Toronto Pearson Intl
Air Transat Logo
19:40 - 07:55YOW  Ottawa-LGW London Gatwick
7h 15mdirect
£384Air Transat
Tue, 13 Oct - Sun, 18 Oct
Air Transat Logo
12:40 - 20:00LGW  London Gatwick-YOW Ottawa
12h 20m1 stop Toronto Pearson Intl
Air Transat Logo
07:00 - 10:45YOW  Ottawa-LGW London Gatwick
22h 45m1 stop Toronto Pearson Intl
£387Air Transat
Mon, 12 Oct - Fri, 30 Oct
Multiple Airlines Logo
17:50 - 00:20LHR  London Heathrow-YOW Ottawa
11h 30m1 stop Toronto Pearson Intl
Multiple Airlines Logo
18:25 - 07:55YOW  Ottawa-LHR London Heathrow
9h 30m1 stop Paris Charles de Gaulle
£388Multiple Airlines
Sat, 17 Oct - Fri, 30 Oct
Multiple Airlines Logo
17:50 - 00:20LHR  London Heathrow-YOW Ottawa
11h 30m1 stop Toronto Pearson Intl
Multiple Airlines Logo
18:25 - 10:30YOW  Ottawa-LHR London Heathrow
12h 05m1 stop Paris Charles de Gaulle
£389Multiple Airlines
Thu, 8 Oct - Wed, 14 Oct
Lufthansa Logo
09:30 - 12:25LHR  London Heathrow-YOW Ottawa
7h 55mdirect
Lufthansa Logo
21:00 - 08:35YOW  Ottawa-LHR London Heathrow
6h 35mdirect
£389Lufthansa
Wed, 7 Oct - Tue, 13 Oct
Air Canada Logo
14:10 - 17:05LHR  London Heathrow-YOW Ottawa
7h 55mdirect
Air Canada Logo
14:50 - 06:30YOW  Ottawa-LHR London Heathrow
10h 40m1 stop Montreal Pierre Elliott Trudeau Intl
£393Air Canada
Thu, 8 Oct - Tue, 13 Oct
Air Canada Logo
09:30 - 12:25LHR  London Heathrow-YOW Ottawa
7h 55mdirect
Air Canada Logo
14:50 - 06:30YOW  Ottawa-LHR London Heathrow
10h 40m1 stop Montreal Pierre Elliott Trudeau Intl
£393Air Canada
Fri, 16 Oct - Fri, 30 Oct
KLM Logo
17:50 - 00:20LHR  London Heathrow-YOW Ottawa
11h 30m1 stop Toronto Pearson Intl
KLM Logo
18:25 - 12:05YOW  Ottawa-LHR London Heathrow
13h 40m2 stops Paris Charles de Gaulle Amsterdam Schiphol
£398KLM
Thu, 22 Oct - Fri, 30 Oct
KLM Logo
17:50 - 00:20LHR  London Heathrow-YOW Ottawa
11h 30m1 stop Toronto Pearson Intl
KLM Logo
18:25 - 12:05YOW  Ottawa-LHR London Heathrow
13h 40m2 stops Paris Charles de Gaulle Amsterdam Schiphol
£410KLM
Wed, 7 Oct - Mon, 12 Oct
Lufthansa Logo
14:10 - 17:05LHR  London Heathrow-YOW Ottawa
7h 55mdirect
Lufthansa Logo
18:55 - 06:30YOW  Ottawa-LHR London Heathrow
6h 35mdirect
£410Lufthansa
Booking Insights

Price, demand, and travel trends for London to Ottawa flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights from London to Ottawa with more confidence.

How much is a return flight from London to Ottawa?

Return flights from London to Ottawa start at £384. Prices are below average for this route right now, with typical return fares ranging from £465 to £643. The lowest price found in the past 5 days was £384 on Air Transat.

What is the cheapest London to Ottawa flight route?

London Gatwick Airport (LGW) to Ottawa (YOW) is the cheapest London to Ottawa route, averaging £454 return. Other London to Ottawa routes average £527, based on KAYAK data over the past 12 months.

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

Tuesday is the cheapest day of the week to fly from London to Ottawa and is 4% cheaper than the average day. Monday is the most expensive day with flight prices 3% higher than average. Based on deals found by KAYAK users in the last 12 months.

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

•June is the cheapest month to fly from London to Ottawa at £436 return.
•December (£694) and July (£578) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 58% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are prices from London to Ottawa the cheapest?

Flights from London to Ottawa are cheapest 11 weeks before departure. Booking in this window typically costs about 18% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Key details for London to Ottawa flights

Low season

February

Cheapest flight

£230
Best time to beat the crowds (4% less expensive on average)
Most popular time to fly (6% more expensive on average)
Flights from London Gatwick Airport to Ottawa

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 return price

Your London to Ottawa flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines, and booking questions.

  • What are the earliest and latest flights from London to Ottawa?

    These are the earliest and latest flight times available from London to Ottawa:

    • Earliest: departs at 09:00 and lands at 16:57
    • Latest: departs at 14:10 and lands at 22:07.

    The flight takes about 7h 57m.

  • Which cabin classes can I book on flights from London to Ottawa?

    Three cabin classes are available on flights from London to Ottawa:

    • Economy class
    • Premium Economy Class
    • Business Class

  • How long is a flight from London to Ottawa?

    A direct flight from London to Ottawa takes 7h 57m, covering 3,332 miles.

  • Do I need a passport to fly from London to Ottawa?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a London to Ottawa flight?

    Return flights from London to Ottawa range from £465 to £643, with an average of £546 over the past 12 months. Anything below £465 counts as a good deal.

  • How expensive are last-minute London to Ottawa flights?

    Last-minute fares on this route (booked within 2 weeks of departure) run 9% above the route average of £546. Book 11 weeks before departure for the lowest fares.

  • How much can I save by having a stopover when flying from London to Ottawa?

    On this route, direct and stopover fares are close on average, with direct at £555 return and stopover options via Paris Charles de Gaulle (CDG) at £564.

  • What is the standard checked bag allowance on flights from London to Ottawa?

    There is no standard. Checked bag policies vary by airline on this route. Most carriers charge £42–£75 for the first checked bag in Economy. Premium fares and elite status bookings typically include a free checked bag.

  • Which airlines offer Wi-Fi on London to Ottawa flights?

    Two airlines offer in-flight Wi-Fi on London to Ottawa flights:

    • Air Canada
    • Lufthansa

    Pricing varies by airline and fare class. Some plans are included with the ticket or loyalty programme, while others are paid add-ons priced by flight length.

  • How are flight prices from London to Ottawa looking right now?

    One-way fares from London to Ottawa are currently lower than usual. Average one-way flight prices are about £346, which is 32% below the typical average for this route.

  • Which car hire options are available at Ottawa Airport (YOW)?

    Ottawa Airport (YOW) hosts 5 major car hire companies, with daily rates starting from around £9 for economy cars. Top options include:
    • Routes Car & Truck Rentals
    • Europcar
    • Alamo
    • Budget
    • Enterprise Rent-A-Car

  • Which airports can I use when flying from London to Ottawa?

    Flights from London to Ottawa may depart from several airports in London area, including London City (LCY), London Gatwick (LGW), London Heathrow (LHR), London Luton (LTN), London Southend (SEN) and London Stansted (STN). Flights usually arrive at Ottawa (YOW).

  • How do delay rates compare for morning and evening flights from London to Ottawa?

    Morning flights have the fewest delays on this route. Delays tend to pile up throughout the day as one late flight pushes the next, so earlier departures are usually more reliable.

  • At what point is a flight considered delayed on the route from London to Ottawa?

    A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the London to Ottawa route, 11% of flights were delayed in the past 3 months, with delays averaging 2 hours 52 minutes.

  • Which airports do connecting flights from London to Ottawa pass through?

    One-stop flights from London to Ottawa most commonly connect through:

    • Paris Charles de Gaulle (CDG) – 48% of one-stop connections
    • Toronto Pearson Intl (YYZ) – 27% of one-stop connections
    • Montreal Pierre Elliott Trudeau Intl (YUL) – 15% of one-stop connections
    • Newark (EWR) – 7% of one-stop connections

    Paris Charles de Gaulle (CDG) handles the largest share of one-stop connections on this route.

  • Can I save money by using flexible dates for flights from London to Ottawa?

    Yes. Being flexible with your travel dates can save you up to 7% on the London to Ottawa route. Tuesday is the cheapest departure day at £529 return on average, while Monday is the most expensive at £565, a difference of £36. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • Which airlines are available on the route from London to Ottawa?

    2 airlines operate flights between London and Ottawa. The airlines offering direct flights on this route include:

    • Air Canada
    • Air Transat

  • How much time can I save by choosing a different stopover airport from London to Ottawa?

    Flying via Montreal Pierre Elliott Trudeau Intl (YUL) gives the shortest average 1-stop total travel time of 10h 01m, compared to 11h 20m via Paris Charles de Gaulle (CDG) and 11h 27m via Newark (EWR).

  • What is the time difference between London and Ottawa?

    Ottawa is 5 hours behind London (Eastern Time vs British Time). Plan for the time shift when scheduling connections or first-day activities.

  • Which airlines offer extra legroom and free seat selection on London to Ottawa flights?

    Among airlines operating London to Ottawa flights:

    • Air Canada: offers extra legroom; offers free seat selection

    Extra legroom and free seat selection availability depends on fare class and route.

  • Which airlines include bags at no extra cost on London to Ottawa flights?

    Here are some options for this route, based on selected ticket types and cabin classes:

    • Air Canada: a cabin bag and a checked bag in Economy class
    • Air Transat: a cabin bag and a checked bag in Economy class
    • Lufthansa: a cabin bag and a checked bag in Economy class

    Bag allowance can vary by ticket type, cabin class, route, and airline, so travellers should check the fare details before booking.

  • 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).

  • Are there luggage storage facilities available at Ottawa Airport?

    The Baggage Storage Service at Ottawa Airport (YOW) is located on Level One at the south end of the passenger terminal building. You will be charged a fee of around C$5 (£2.97) per bag per day, along with an additional C$8 (£4.76) charge for overnight storage.

  • Which flights from London to Ottawa help me reduce my CO2 emissions?

    To reduce your carbon emissions when flying from London to Ottawa, you can find more environmentally friendly flights with Air Canada and Lufthansa who both operate flights via Montreal Pierre Elliott Trudeau Airport (YUL). These flights can cut your CO2 emissions by 45%.

  • Which are the cheapest car parks at London Heathrow Airport?

    If you’re looking for the cheapest car parks at London Heathrow Airport, the Long Stay Car Park is your best option. For a 7-day period, charges come to around £115.00 when pre-booked online. This also includes a free shuttle service to the terminal building that takes around 10-20 minutes. When booking, make sure to select your terminal of departure.

  • Do I need a visa to travel from London to Ottawa?

    British nationals need to apply for a visa in order to enter Canada for visits of six months or less. However, you will obtain an eTA (Electronic Travel Authorisation), which can be done online and only takes a few minutes, costing around C$7 (£4.15).

Your guide to booking London to Ottawa flights

Get tips on when to book, when to fly, and what to know before your trip.
  • If your dates are flexible, aim for a Tuesday departure instead of Monday. On this route, Tuesday flights average £529 – about £36 less than Monday (6% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 11 weeks before you fly. On this route, that window historically saves about 18% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your London to Ottawa trip for June. Fares historically average £436 return in that month – typically £257 less than the most expensive month, which is December (based on the last 12 months).
  • If arriving on time is high on your priority list, Air Transat is the strongest pick on this route. 90% of Air Transat flights from London to Ottawa arrived on time in the past 3 months, slightly above the route's average on-time arrival rate of 89%. When flights on this route do arrive late, the average delay is 2 hours52 minutes, so choosing an airline with strong on-time performance can make a difference on tight schedules.
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Ottawa Airport.
    - Hilton Garden Inn Ottawa Airport
    - Hampton Inn by Hilton Ottawa Airport
    - Ramada by Wyndham Ottawa On The Rideau
  • 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.
  • If you're interested in purchasing Duty-Free items before your flight but have limited time, consider exploring the convenient online 'Click & Collect' service. This service allows you to buy products in advance, prior to arriving at the airport, and collect them before your flight.
  • If you want to upgrade your flight from London to Ottawa to Business Class or an equivalent, but don’t want to pay too much, then check out TAP AIR Portugal. They provide the Executive Class service at a very reasonable price from London Heathrow Airport (LHR) to Ottawa Airport (YOW) via stopovers in Lisbon and Toronto.

Prefer to fly 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

Friday

Air Transat

Air Transat

Saturday

Air Canada

Air Canada

Sunday

Air Transat

Air Transat

See more direct flights

Direct returns

Ottawa to London

Monday

Air Canada

Air Canada

Wednesday

Air Canada

Air Canada

Thursday

Air Canada

Air Canada

Friday

Air Transat

Air Transat

Saturday

Air Canada

Air Canada

Sunday

Air Transat

Air Transat

See more direct flights

More options for your flight from London to Ottawa

Complete your trip to Ottawa with a hotel stay or car hire