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Cheap flights from the United Kingdom to Ottawa from C$ 393

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 21/9. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — YOW
11 Sep — 18 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from United Kingdom to Ottawa

Enter your travel dates to find the best prices.

Cheapest flights from United Kingdom to Ottawa
Explore the most affordable flight options available from United Kingdom to Ottawa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 August 2026.

Fri 4/95:50 p.m. -
1 stop11h 30m
Tue 22/95:25 p.m. -
1 stop9h 30m
Deal found 12/8C$ 830
Sun 6/99:40 a.m. -
Nonstop8h 00m
Sun 20/97:40 p.m. -
Nonstop7h 15m
Deal found 10/8C$ 832
Wed 9/98:50 p.m. -
3 stops32h 30m
Wed 23/910:00 a.m. -
1 stop19h 45m
Deal found 11/8C$ 834
Sat 3/106:50 a.m. -
2 stops14h 48m
Sat 3/1010:05 p.m. -
1 stop30h 30m
Deal found 11/8C$ 834
Sat 10/1012:40 p.m. -
1 stop16h 45m
Sun 18/106:25 p.m. -
2 stops35h 50m
Deal found 11/8C$ 837
Sat 26/92:10 p.m. -
Nonstop7h 55m
Sat 3/109:00 p.m. -
Nonstop6h 35m
Deal found 12/8C$ 841
Thu 1/1012:40 p.m. -
1 stop16h 45m
Tue 20/107:00 a.m. -
1 stop22h 45m
Deal found 10/8C$ 844
Thu 24/911:05 a.m. -
1 stop15h 30m
Thu 1/106:05 a.m. -
1 stop10h 15m
Deal found 10/8C$ 844
Thu 17/121:05 p.m. -
1 stop16h 37m
Wed 6/15:10 p.m. -
2 stops15h 40m
Deal found 8/8C$ 847
Tue 22/99:35 p.m. -
3 stops25h 00m
Tue 29/94:00 p.m. -
1 stop13h 45m
Deal found 7/8C$ 850
Mon 14/99:05 p.m. -
2 stops26h 10m
Mon 21/910:00 a.m. -
1 stop16h 55m
Deal found 11/8C$ 852
Fri 2/109:40 a.m. -
Nonstop8h 00m
Fri 2/106:25 p.m. -
2 stops17h 45m
Deal found 11/8C$ 854

Find flight deals from United Kingdom to Ottawa

Keep the following information in mind while searching for United Kingdom to Ottawa flight deals. Data was last updated 12 August 2026.

Round-trip from

C$ 823

One-way from

C$ 393

Popular in

December

Cheapest in

June

Average price

C$ 1,042

Good round-trip deal

C$ 1,026 or less

Good one-way deal

C$ 431 or less
Air Transat
  • Air Transat
  • 28/8-13/9
  • 2 total stops
  • 31h 20m total
  • United Kingdom to Ottawa
Search Deals
21/9
  • 21/9
  • 2 total stops
  • 29h 55m total
  • United Kingdom to Ottawa
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (C$ 105 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 34 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2026
Search Deals
Price to beat on a round-trip flight from United Kingdom to Ottawa.
Search Deals
Price to beat on a one-way flight from United Kingdom to Ottawa.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from United Kingdom 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 12 August 2026.
Use the filters below to find and compare flights from the United Kingdom to Ottawa that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

GlasgowOttawa

GLA Glasgow Intl - YOW Ottawa

GLAYOW

Glasgow Intl

Fri 18/9

6:50 a.m.-8:00 p.m.

2 stops18h 10m

Ottawa

Sun 27/9

7:40 p.m.-11:10 p.m.

1 stop22h 30m

C$ 857

LondonOttawa

STN London Stansted - YOW Ottawa

STNYOW

London Stansted

Mon 14/9

8:50 p.m.-12:20 a.m.

3 stops32h 30m

Ottawa

Mon 21/9

6:55 a.m.-8:40 p.m.

3 stops32h 45m

C$ 861

LondonOttawa

STN London Stansted - YOW Ottawa

STNYOW

London Stansted

Wed 23/9

6:30 a.m.-9:05 a.m.

3 stops31h 35m

Ottawa

Wed 7/10

6:55 a.m.-7:30 p.m.

3 stops31h 35m

C$ 886

LondonOttawa

LHR London Heathrow - YOW Ottawa

LHRYOW

London Heathrow

Fri 23/10

6:30 a.m.-5:35 p.m.

2 stops16h 05m

Ottawa

Tue 27/10

6:10 p.m.-7:55 a.m.

1 stop9h 45m

C$ 910

LondonOttawa

STN London Stansted - YOW Ottawa

STNYOW

London Stansted

Wed 16/9

9:30 p.m.-5:35 a.m.

3 stops37h 05m

Ottawa

Wed 30/9

6:55 a.m.-10:50 p.m.

2 stops34h 55m

C$ 912

GlasgowOttawa

GLA Glasgow Intl - YOW Ottawa

GLAYOW

Glasgow Intl

Fri 2/10

6:50 a.m.-8:00 p.m.

2 stops18h 10m

Ottawa

Sun 11/10

4:00 p.m.-2:50 p.m.

2 stops17h 50m

C$ 932

LondonOttawa

STN London Stansted - YOW Ottawa

STNYOW

London Stansted

Thu 24/9

10:00 p.m.-5:35 p.m.

2 stops24h 35m

Ottawa

Thu 1/10

6:25 p.m.-10:25 p.m.

2 stops23h 00m

C$ 935

LondonOttawa

LHR London Heathrow - YOW Ottawa

LHRYOW

London Heathrow

Tue 8/9

12:15 p.m.-6:55 p.m.

1 stop11h 40m

Ottawa

Mon 28/9

10:40 a.m.-7:15 a.m.

2 stops15h 35m

C$ 956

LondonOttawa

LHR London Heathrow - YOW Ottawa

LHRYOW

London Heathrow

Mon 7/9

8:00 a.m.-1:59 p.m.

1 stop34h 59m

Ottawa

Mon 14/9

10:40 a.m.-9:20 a.m.

2 stops17h 40m

C$ 956

LondonOttawa

LHR London Heathrow - YOW Ottawa

LHRYOW

London Heathrow

Mon 7/9

8:40 a.m.-11:54 p.m.

2 stops20h 14m

Ottawa

Wed 7/10

6:00 a.m.-8:30 a.m.

3 stops21h 30m

C$ 969

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/8

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from United Kingdom to Ottawa

Have a flexible travel schedule? Discover the best time to fly to Ottawa from United Kingdom 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 the United Kingdom to Ottawa

What is the cheapest month to book a flight from United Kingdom to Ottawa?

Currently, June is the cheapest month in which you can book a flight from United Kingdom to Ottawa (average of C$ 844). Flying from United Kingdom to Ottawa in December is currently the most expensive (average of C$ 1,312). 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 GB to YOW?

Find hourly flight availability from United Kingdom 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 12 August 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from United Kingdom to Ottawa as you normally would.

How often are flights from the United Kingdom to Ottawa delayed?

About 11% of weekly flights between United Kingdom and Ottawa have experienced delays in the past year, with the average delay time being 202 minutes.

What is the most punctual flight time for the United Kingdom to Ottawa flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Thursday tends to have the lowest number of delays on this route, whereas Tuesday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on the United Kingdom to Ottawa flights?

Over the past year, Air Canada has had the lowest number of delays on this route, with just 11% of flights being delayed.

How far ahead should I book a flight from United Kingdom to Ottawa?

The best time to book flights from United Kingdom to Ottawa is 75 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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 12 August 2026.
Check out reviews from past customers who have flown with Air Transat,Air Canada, andLufthansa from the United Kingdom to Ottawa to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air Transat
7.8
Good
572 reviews
Check prices

Overall

7.8

Crew

8.5

Boarding

8.0

Comfort

7.3

Food

6.8

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Liam,Jun 2025

GLA - YYZ

To and from Glasgow with Air Transat. Excellent flights, food, service. Nothing but praise.
Air Transat
7.8
Good
572 reviews
Air Transat
7.8
Good
572 reviews
Check prices

Overall

7.8

Crew

8.5

Boarding

8.0

Comfort

7.3

Food

6.8

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Liam,Jun 2025

GLA - YYZ

To and from Glasgow with Air Transat. Excellent flights, food, service. Nothing but praise.
Air Canada
7.1
Good
11,464 reviews
Air Transat
7.8
Good
572 reviews
Check prices

Overall

7.8

Crew

8.5

Boarding

8.0

Comfort

7.3

Food

6.8

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Liam,Jun 2025

GLA - YYZ

To and from Glasgow with Air Transat. Excellent flights, food, service. Nothing but praise.
Lufthansa
6.8
Okay
8,179 reviews
Air Transat
7.8
Good
572 reviews
Check prices

Overall

7.8

Crew

8.5

Boarding

8.0

Comfort

7.3

Food

6.8

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Liam,Jun 2025

GLA - YYZ

To and from Glasgow with Air Transat. Excellent flights, food, service. Nothing but praise.

Related info for your journey

Find useful and relevant information for your journey from United Kingdom 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 United Kingdom?

    Located just 10.6 km from the city centre, Ottawa (YOW) is the airport most travelers will use when flying to Ottawa from United Kingdom.

  • How long is the flight from United Kingdom to Ottawa?

    A quick flight from United Kingdom to Ottawa can take about 11h 40m. Air France provides one of the quickest options available for as low as C$ 956. There are 5343 km between United Kingdom and Ottawa. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from United Kingdom to Ottawa one-way?

    C$ 421 is the cheapest one-way deal found within the past few days, from Air Transat. You may also be able to find cheap deals on Virgin Atlantic and Air France, with prices starting from C$ 492 and C$ 563, respectively.

  • What are the most popular routes from United Kingdom to Ottawa?

    While some choose either London City - Ottawa or London Gatwick - Ottawa, London Heathrow - Ottawa is the most popular route from United Kingdom to Ottawa.

  • What are the most reliable airlines from United Kingdom to Ottawa?

    Before booking your flight to Ottawa from United Kingdom, check out the most reliable airlines to get you to your destination on time: Air Canada (86%), Austrian Airlines (86%), SriLankan Airlines( 86%).

  • What are the cheapest flights from United Kingdom to Ottawa?

    Looking for the cheapest flight from United Kingdom to Ottawa? While on average our users pay C$ 1,125, our data indicates the cheapest price to be C$ 708. The most popular route (London Heathrow - Ottawa), is priced around C$ 717.

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

    Yes. In addition to deals on United Kingdom to Ottawa flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from United Kingdom to Ottawa?

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

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

    Yes. Cheapflights offers flight deals from United Kingdom 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 United Kingdom to Ottawa?

    Currently, June is the cheapest month in which you can book a flight from United Kingdom to Ottawa (average of C$ 844). Flying from United Kingdom to Ottawa in December is currently the most expensive (average of C$ 1,312). 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
Prescott
Brockville
Wakefield
Pembroke
Smiths Falls

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for United Kingdom to Ottawa

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from United Kingdom to Ottawa

Discover the top 2 airlines that operate flights from United Kingdom 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 12 August 2026.
AirlineCheapestAverageFlexibilityOn-time
Air TransatCheapestC$ 705AverageC$ 931FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
Air CanadaCheapestC$ 803AverageC$ 1,013FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

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

How does Cheapflights help users find flights from United Kingdom to Ottawa?

Cheapflights helps you search for flights from United Kingdom to Ottawa via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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

Cheapflights simply makes it quick and affordable to book flights from United Kingdom to Ottawa by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Certainly. Search results for flights to Ottawa from United Kingdom 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 United Kingdom to Ottawa become cheaper?

Yes, Cheapflights offers price alerts on United Kingdom to Ottawa flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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