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Cheap flights from Ottawa to the United Kingdom from C$ 326

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 14/10. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — LHR
16 Oct — 23 Oct1
1 adult
1 adult, Economy

Cheap 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 16 September 2025.

Round-trip from

C$ 834

One-way from

C$ 326

Popular in

December

Cheapest in

February

Average price

C$ 1,057

Good round-trip deal

C$ 951 or less

Good one-way deal

C$ 1,184 or less
Air Transat
  • Air Transat
  • 31/1-8/2
  • 2 total stops
  • 47h 55m total
  • Ottawa to United Kingdom
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14/10
  • 14/10
  • 2 total stops
  • 22h 50m total
  • Ottawa to United Kingdom
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (C$ 79 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 30 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
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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

Find flight deals from Ottawa to United Kingdom

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 16 September 2025.

Tue 14/103:55 p.m.YOW - GLA
2 stops18h 35mMultiple Airlines
Tue 21/1010:35 p.m.GLA - YOW
2 stops23h 29mMultiple Airlines
Deal found 14/9C$ 852
Wed 22/104:05 p.m.YOW - LHR
1 stop9h 25mAir Canada
Wed 29/101:25 p.m.LHR - YOW
1 stop12h 53mAir Canada
Deal found 15/9C$ 855
Wed 29/106:20 p.m.YOW - LHR
1 stop8h 50mAir Canada
Wed 5/119:00 a.m.LHR - YOW
1 stop13h 43mAir Canada
Deal found 14/9C$ 859
Tue 23/97:00 a.m.YOW - LHR
1 stop9h 00mAir Canada
Tue 30/99:30 a.m.LHR - YOW
1 stop9h 21mAir Canada
Deal found 16/9C$ 862
Sun 28/92:20 p.m.YOW - LGW
1 stop15h 25mAir Transat
Fri 10/1012:40 p.m.LGW - YOW
1 stop16h 41mAir Transat
Deal found 14/9C$ 863
Mon 13/107:00 a.m.YOW - LHR
1 stop9h 00mMultiple Airlines
Mon 20/102:05 p.m.LHR - YOW
Nonstop7h 20mMultiple Airlines
Deal found 15/9C$ 865
Mon 13/102:40 p.m.YOW - LHR
1 stop13h 55mAir Canada
Mon 20/1012:40 p.m.LHR - YOW
1 stop15h 24mAir Canada
Deal found 13/9C$ 866
Sat 15/116:55 p.m.YOW - LGW
1 stop9h 50mAir Transat
Wed 19/1111:40 a.m.LGW - YOW
1 stop11h 46mAir Transat
Deal found 14/9C$ 869
Wed 15/109:00 p.m.YOW - LHR
Nonstop6h 35mAir Canada
Wed 22/1012:40 p.m.LHR - YOW
Nonstop7h 20mAir Canada
Deal found 14/9C$ 869
Wed 5/113:05 p.m.YOW - LGW
1 stop13h 40mAir Transat
Tue 11/1111:40 a.m.LGW - YOW
1 stop18h 01mAir Transat
Deal found 16/9C$ 870
Tue 4/116:55 p.m.YOW - LGW
1 stop9h 50mPorter Airlines
Tue 11/1111:40 a.m.LGW - YOW
1 stop18h 01mPorter Airlines
Deal found 16/9C$ 872
Thu 23/1010:45 a.m.YOW - LGW
1 stop19h 00mAir Transat
Sat 1/1111:40 a.m.LGW - YOW
1 stop25h 45mAir Transat
Deal found 14/9C$ 874

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 16 September 2025.
Use the filters below to find and compare flights from Ottawa to the United Kingdom that are best for you.

Fly from

Ottawa

Fly to

United Kingdom

Route

Depart

Return

Price

OttawaGlasgow

YOW - GLA

YOWGLA

Ottawa

Sat 31/1

6:45 a.m.-7:40 a.m.

1 stop19h 55m

Glasgow Intl

Sun 8/2

9:25 a.m.-8:25 a.m.

1 stop28h 00m

C$ 834

OttawaGlasgow

YOW - GLA

YOWGLA

Ottawa

Tue 14/10

2:40 p.m.-3:30 p.m.

3 stops19h 50m

Glasgow Intl

Tue 21/10

10:35 p.m.-3:04 p.m.

2 stops21h 29m

C$ 856

OttawaLondon

YOW - LGW

YOWLGW

Ottawa

Sun 28/9

8:35 a.m.-10:45 a.m.

1 stop21h 10m

London Gatwick

Tue 7/10

12:40 p.m.-8:05 a.m.

1 stop24h 25m

C$ 869

OttawaGlasgow

YOW - GLA

YOWGLA

Ottawa

Fri 30/1

6:55 p.m.-7:40 a.m.

1 stop31h 45m

Glasgow Intl

Sun 8/2

9:25 a.m.-4:51 p.m.

1 stop12h 26m

C$ 874

OttawaLondon

YOW - LGW

YOWLGW

Ottawa

Thu 13/11

6:45 a.m.-9:45 a.m.

1 stop22h 00m

London Gatwick

Sun 16/11

11:40 a.m.-6:26 p.m.

1 stop11h 46m

C$ 876

OttawaLondon

YOW - LGW

YOWLGW

Ottawa

Wed 5/11

6:45 a.m.-9:45 a.m.

1 stop22h 00m

London Gatwick

Sun 9/11

11:40 a.m.-6:26 p.m.

1 stop11h 46m

C$ 877

OttawaLondon

YOW - STN

YOWSTN

Ottawa

Tue 14/10

11:55 a.m.-2:20 p.m.

2 stops21h 25m

London Stansted

Mon 20/10

10:00 p.m.-5:04 p.m.

2 stops24h 04m

C$ 879

OttawaGlasgow

YOW - GLA

YOWGLA

Ottawa

Wed 5/11

6:45 a.m.-8:05 p.m.

2 stops32h 20m

Glasgow Intl

Wed 19/11

7:00 a.m.-12:41 a.m.

2 stops22h 41m

C$ 928

OttawaLondon

YOW - LGW

YOWLGW

Ottawa

Tue 4/11

4:35 p.m.-6:00 a.m.

2 stops32h 25m

London Gatwick

Tue 18/11

1:00 p.m.-12:35 p.m.

1 stop28h 35m

C$ 935

OttawaManchester

YOW - MAN

YOWMAN

Ottawa

Wed 29/10

10:50 a.m.-10:20 a.m.

2 stops19h 30m

Manchester

Wed 5/11

6:10 a.m.-2:08 p.m.

2 stops12h 58m

C$ 945

Flights are sorted by cheapest round-trip flights first.

Deals found on 14/9

Showing 1-10 of 60 results
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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$ 560). Flying from Ottawa to United Kingdom in July is currently the most expensive (average of C$ 856). 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 16 September 2025.

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.

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 16 September 2025.
Read reviews from past customers who have flown Porter Airlines,Air Transat, andAir France 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.
Porter Airlines
7.9
Good
363 reviews
Check prices

Comfort

7.9

Overall

7.9

Boarding

8.1

Entertainment

7.0

Food

7.6

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
Porter Airlines
7.9
Good
363 reviews
Porter Airlines
7.9
Good
363 reviews
Check prices

Comfort

7.9

Overall

7.9

Boarding

8.1

Entertainment

7.0

Food

7.6

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
Air Transat
7.7
Good
438 reviews
Porter Airlines
7.9
Good
363 reviews
Check prices

Comfort

7.9

Overall

7.9

Boarding

8.1

Entertainment

7.0

Food

7.6

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
Air France
7.4
Good
1,468 reviews
Porter Airlines
7.9
Good
363 reviews
Check prices

Comfort

7.9

Overall

7.9

Boarding

8.1

Entertainment

7.0

Food

7.6

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
Air Canada
7.1
Good
10,000 reviews
Porter Airlines
7.9
Good
363 reviews
Check prices

Comfort

7.9

Overall

7.9

Boarding

8.1

Entertainment

7.0

Food

7.6

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
Lufthansa
6.8
Okay
7,407 reviews
Porter Airlines
7.9
Good
363 reviews
Check prices

Comfort

7.9

Overall

7.9

Boarding

8.1

Entertainment

7.0

Food

7.6

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.

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, Air Canada, and United Airlines fly from Ottawa to United Kingdom in about 15h 40m. The time it takes to get you to your destination can typically vary by up to 4h 15m. There are 5343 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$ 344 on WestJet. Other airlines that offer cheap prices include Air Transat from C$ 414 and Aer Lingus from C$ 626 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 (77%), Aegean Airlines (77%) or Austrian Airlines (77%) 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$ 1,147, our data indicates the cheapest price to be C$ 644. The most popular route (Ottawa - London Heathrow), is priced around C$ 856.

  • 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$ 560). Flying from Ottawa to United Kingdom in July is currently the most expensive (average of C$ 856). 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 10 airlines flying from Ottawa to United Kingdom

Discover the top 10 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 16 September 2025.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapestC$ 712AverageC$ 1,222FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air TransatCheapestC$ 719AverageC$ 1,114FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
Air FranceCheapestC$ 730AverageC$ 1,301FlexibilityNo cancel feeOn-time77%
Search Air France flights
Virgin AtlanticCheapestC$ 732AverageC$ 1,329FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
WestJetCheapestC$ 769AverageC$ 1,174FlexibilityNo cancel feeOn-time60%
Search WestJet flights
United AirlinesCheapestC$ 890AverageC$ 1,252FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapestC$ 899AverageC$ 1,225FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
LufthansaCheapestC$ 957AverageC$ 1,125FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Aer LingusCheapestC$ 968AverageC$ 1,169FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
KLMCheapestC$ 1,102AverageC$ 1,471FlexibilityNo cancel feeOn-time75%
Search KLM 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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