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Cheap flights from Ottawa to the United Kingdom from C$ 345

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 31/7. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — LHR
22 Aug — 29 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ottawa to United Kingdom

Enter your travel dates to find the best prices.

Cheapest flights from Ottawa to United Kingdom
Explore the most affordable flight options available from Ottawa to United Kingdom. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 23 July 2026.

Sun 6/97:40 p.m.
YOW
-
LGW
Nonstop7h 15m
Air Transat
Sun 13/99:40 a.m.
LGW
-
YOW
Nonstop8h 00m
Air Transat
Deal found 20/7C$ 654
Tue 8/97:40 p.m.
YOW
-
LGW
Nonstop7h 15m
Air Transat
Fri 18/99:40 a.m.
LGW
-
YOW
Nonstop8h 00m
Air Transat
Deal found 21/7C$ 661
Sun 13/97:40 p.m.
YOW
-
LGW
Nonstop7h 15m
Air Transat
Sun 20/911:35 a.m.
LGW
-
YOW
1 stop11h 00m
Air Transat
Deal found 18/7C$ 667
Sat 12/97:00 a.m.
YOW
-
LGW
1 stop19h 55m
Air Transat
Sun 20/911:35 a.m.
LGW
-
YOW
1 stop11h 00m
Air Transat
Deal found 21/7C$ 671
Tue 8/97:40 p.m.
YOW
-
LGW
Nonstop7h 15m
Air Transat
Tue 15/99:40 a.m.
LGW
-
YOW
Nonstop8h 00m
Air Transat
Deal found 20/7C$ 678
Mon 12/104:00 p.m.
YOW
-
LHR
2 stops34h 55m
Multiple Airlines
Thu 15/106:00 a.m.
LHR
-
YOW
2 stops21h 10m
Multiple Airlines
Deal found 21/7C$ 740
Tue 15/96:55 a.m.
YOW
-
GLA
1 stop21h 45m
Multiple Airlines
Wed 23/910:35 p.m.
GLA
-
YOW
3 stops30h 45m
Multiple Airlines
Deal found 19/7C$ 772
Sun 16/86:25 p.m.
YOW
-
EDI
2 stops32h 40m
Multiple Airlines
Sun 23/811:55 p.m.
EDI
-
YOW
3 stops29h 25m
Multiple Airlines
Deal found 19/7C$ 779
Mon 17/86:55 a.m.
YOW
-
EDI
2 stops20h 10m
Multiple Airlines
Wed 26/87:20 a.m.
EDI
-
YOW
3 stops39h 15m
Multiple Airlines
Deal found 21/7C$ 809
Sun 16/86:25 p.m.
YOW
-
EDI
1 stop10h 45m
Multiple Airlines
Tue 25/810:00 p.m.
EDI
-
YOW
2 stops25h 15m
Multiple Airlines
Deal found 19/7C$ 815
Thu 17/96:55 a.m.
YOW
-
EDI
2 stops20h 10m
Multiple Airlines
Tue 22/910:00 p.m.
EDI
-
YOW
3 stops31h 20m
Multiple Airlines
Deal found 20/7C$ 817
Sat 29/87:00 a.m.
YOW
-
GLA
1 stop18h 50m
Air Transat
Sun 13/98:35 a.m.
GLA
-
YOW
1 stop28h 30m
Air Transat
Deal found 19/7C$ 824

Find flight deals from Ottawa to United Kingdom

Keep the following information in mind while searching for Ottawa to United Kingdom flight deals. Data was last updated 23 July 2026.

Round-trip from

C$ 654

One-way from

C$ 345

Popular in

December

Cheapest in

February

Average price

C$ 1,216

Good round-trip deal

C$ 658 or less

Good one-way deal

C$ 489 or less
Air Transat
  • Air Transat
  • 6/9-13/9
  • Nonstop
  • 15h 15m total
  • Ottawa to United Kingdom
Search Deals
Air Transat
  • Air Transat
  • 31/7
  • Nonstop
  • 7h 15m total
  • Ottawa to United Kingdom
Search Deals
Highest demand for flights based on searches. 0% potential increase in price (C$ 1 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 25 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals
Price to beat on a round-trip flight from Ottawa to United Kingdom.
Search Deals
Price to beat on a one-way flight from Ottawa to United Kingdom.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ottawa to United Kingdom 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 23 July 2026.
Use the filters below to find and compare flights from Ottawa to the United Kingdom that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

OttawaLondon

YOW - LGW

YOWLGW

Ottawa

Fri 18/9

7:40 p.m.-7:55 a.m.

Nonstop7h 15m

London Gatwick

Wed 14/10

12:40 p.m.-8:00 p.m.

1 stop12h 20m

C$ 703

OttawaLondon

YOW - LGW

YOWLGW

Ottawa

Sun 20/9

7:40 p.m.-7:55 a.m.

Nonstop7h 15m

London Gatwick

Mon 19/10

12:40 p.m.-8:00 p.m.

1 stop12h 20m

C$ 703

OttawaLondon

YOW - LGW

YOWLGW

Ottawa

Sun 6/9

8:55 p.m.-7:55 a.m.

1 stop30h 00m

London Gatwick

Sun 13/9

9:40 a.m.-12:40 p.m.

Nonstop8h 00m

C$ 781

OttawaLondon

YOW - LGW

YOWLGW

Ottawa

Fri 25/9

7:40 p.m.-7:55 a.m.

Nonstop7h 15m

London Gatwick

Mon 28/9

9:40 a.m.-12:25 a.m.

1 stop19h 45m

C$ 781

OttawaLondon

YOW - LGW

YOWLGW

Ottawa

Sun 4/10

7:40 p.m.-7:55 a.m.

Nonstop7h 15m

London Gatwick

Mon 12/10

12:40 p.m.-12:25 a.m.

1 stop16h 45m

C$ 786

OttawaLondon

YOW - LGW

YOWLGW

Ottawa

Fri 25/9

7:40 p.m.-7:55 a.m.

Nonstop7h 15m

London Gatwick

Tue 29/9

12:40 p.m.-12:25 a.m.

1 stop16h 45m

C$ 786

OttawaLondon

YOW - LGW

YOWLGW

Ottawa

Mon 7/9

4:00 p.m.-7:55 a.m.

1 stop10h 55m

London Gatwick

Wed 30/9

12:40 p.m.-8:00 p.m.

1 stop12h 20m

C$ 789

OttawaLondon

YOW - LGW

YOWLGW

Ottawa

Fri 23/10

7:40 p.m.-7:55 a.m.

Nonstop7h 15m

London Gatwick

Mon 26/10

11:40 a.m.-10:08 p.m.

1 stop14h 28m

C$ 843

OttawaLondon

YOW - LHR

YOWLHR

Ottawa

Fri 23/10

2:00 p.m.-11:55 a.m.

2 stops16h 55m

London Heathrow

Sun 25/10

11:05 a.m.-1:11 p.m.

2 stops54h 06m

C$ 881

OttawaBirmingham

YOW - BHX

YOWBHX

Ottawa

Mon 7/9

6:35 p.m.-10:40 p.m.

3 stops23h 05m

Birmingham

Tue 22/9

9:40 p.m.-12:20 a.m.

3 stops31h 40m

C$ 886

Flights are sorted by cheapest round-trip flights first.

Deals found on 23/7

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

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

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

Currently, January is the cheapest month in which you can book a flight from Ottawa to United Kingdom (average of C$ 941). Flying from Ottawa to United Kingdom in December is currently the most expensive (average of C$ 1,301). 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 YOW to GB?

Find hourly flight availability from Ottawa to United Kingdom. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 23 July 2026.

When flying from Ottawa to United Kingdom, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

About 26% of weekly flights between Ottawa and United Kingdom have experienced delays in the past year, with the average delay time being 128 minutes.

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

Historically, flights departing in the evening are less likely to be delayed, whereas flights leaving at night tend to experience delays more often.

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

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

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

Over the past year, Air Canada has had the lowest number of delays on this route, with just 26% of flights being delayed.

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

The best time to book flights from Ottawa to United Kingdom is 84 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 United Kingdom

Get insights into the airlines that provide service to United Kingdom. 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 United Kingdom. Reviews last updated 23 July 2026.
Read reviews from past customers who have flown Air Transat,Air France, andWestJet from Ottawa to the United Kingdom. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air Transat
7.8
Good
566 reviews
Check prices

Comfort

7.3

Boarding

8.0

Crew

8.5

Overall

7.8

Entertainment

7.1

Food

6.8

Reviews

1 / 20
8.0
Excellent

Paul,Jul 2026

YUL - LGW

Had to bus to the plane which made priority boarding at the back of the bus
Air Transat
7.8
Good
566 reviews
Air Transat
7.8
Good
566 reviews
Check prices

Comfort

7.3

Boarding

8.0

Crew

8.5

Overall

7.8

Entertainment

7.1

Food

6.8

Reviews

1 / 20
8.0
Excellent

Paul,Jul 2026

YUL - LGW

Had to bus to the plane which made priority boarding at the back of the bus
Air France
7.4
Good
1,628 reviews
Air Transat
7.8
Good
566 reviews
Check prices

Comfort

7.3

Boarding

8.0

Crew

8.5

Overall

7.8

Entertainment

7.1

Food

6.8

Reviews

1 / 20
8.0
Excellent

Paul,Jul 2026

YUL - LGW

Had to bus to the plane which made priority boarding at the back of the bus
WestJet
7.2
Good
3,411 reviews
Air Transat
7.8
Good
566 reviews
Check prices

Comfort

7.3

Boarding

8.0

Crew

8.5

Overall

7.8

Entertainment

7.1

Food

6.8

Reviews

1 / 20
8.0
Excellent

Paul,Jul 2026

YUL - LGW

Had to bus to the plane which made priority boarding at the back of the bus
Air Canada
7.1
Good
11,371 reviews
Air Transat
7.8
Good
566 reviews
Check prices

Comfort

7.3

Boarding

8.0

Crew

8.5

Overall

7.8

Entertainment

7.1

Food

6.8

Reviews

1 / 20
8.0
Excellent

Paul,Jul 2026

YUL - LGW

Had to bus to the plane which made priority boarding at the back of the bus
Lufthansa
6.8
Okay
8,159 reviews
Air Transat
7.8
Good
566 reviews
Check prices

Comfort

7.3

Boarding

8.0

Crew

8.5

Overall

7.8

Entertainment

7.1

Food

6.8

Reviews

1 / 20
8.0
Excellent

Paul,Jul 2026

YUL - LGW

Had to bus to the plane which made priority boarding at the back of the bus

Related info for your journey

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

    If you book a flight to United Kingdom from Ottawa, you will be flying from Ottawa, which is the city’s only airport. Ottawa (YOW) is located 10.6 km from the centre of Ottawa.

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

    Airlines like Air Transat, Porter Airlines, and United Airlines fly from Ottawa to United Kingdom in about 7h 15m. The time it takes to get you to your destination can typically vary by up to 22h 45m. There are 5375 km between Ottawa and United Kingdom. Both multi-stop and direct flights can be found to your destination and back.

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

    One-way options have recently been found by users for as low as C$ 301 on WestJet. Other airlines that offer cheap prices include Air Transat from C$ 415 and Air Canada from C$ 485 one-way.

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

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

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

    No one likes to see their flight delayed. When booking a flight from Ottawa to United Kingdom consider choosing Air Canada (67%), Aegean Airlines (67%) or Austrian Airlines (67%) as they are the most reliable in getting you off to your destination on time.

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

    Looking for the cheapest flight from Ottawa to United Kingdom? While on average our users pay C$ 1,138, our data indicates the cheapest price to be C$ 489. The most popular route (Ottawa - London Heathrow), is priced around C$ 740.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Ottawa to United Kingdom (average of C$ 941). Flying from Ottawa to United Kingdom in December is currently the most expensive (average of C$ 1,301). 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

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Alternative routes for Ottawa to United Kingdom

See prices for flight routes from nearby airports that may be better suited for you.
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Top 7 airlines flying from Ottawa to United Kingdom

Discover the top 7 airlines that operate flights from Ottawa to United Kingdom. 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 23 July 2026.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapestC$ 121AverageC$ 969FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Air TransatCheapestC$ 689AverageC$ 1,401FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
Air FranceCheapestC$ 795AverageC$ 1,266FlexibilityNo cancel feeOn-time77%
Search Air France flights
Porter AirlinesCheapestC$ 850AverageC$ 1,134FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
United AirlinesCheapestC$ 896AverageC$ 1,236FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapestC$ 908AverageC$ 1,179FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
LufthansaCheapestC$ 927AverageC$ 1,169FlexibilityNo cancel feeOn-time76%
Search Lufthansa 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 Ottawa to United Kingdom?

Cheapflights makes it easy to find Ottawa to United Kingdom flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

Cheapflights helps you find that perfect flight to United Kingdom from Ottawa by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from Ottawa to United Kingdom, users can toggle the no change fees filter when performing a flight search.

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

Yes! Start tracking prices for Ottawa to United Kingdom flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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