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Cheap flights from Ottawa to the United Kingdom from C$ 322

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 3/5. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — LHR
22 Mar — 29 Mar1
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 20 February 2026.

Sun 31/56:25 p.m.
YOW
-
GLA
1 stop10h 15m
Multiple Airlines
Mon 8/69:45 p.m.
GLA
-
YOW
2 stops24h 50m
Multiple Airlines
Deal found 19/2C$ 674
Sun 31/56:25 p.m.
YOW
-
GLA
1 stop10h 15m
Multiple Airlines
Fri 12/69:25 p.m.
GLA
-
YOW
2 stops25h 10m
Multiple Airlines
Deal found 19/2C$ 676
Fri 29/56:25 p.m.
YOW
-
GLA
1 stop10h 15m
Multiple Airlines
Mon 8/69:45 p.m.
GLA
-
YOW
2 stops24h 50m
Multiple Airlines
Deal found 19/2C$ 682
Sun 31/56:25 p.m.
YOW
-
GLA
1 stop10h 15m
Multiple Airlines
Sun 14/69:55 p.m.
GLA
-
YOW
2 stops24h 40m
Multiple Airlines
Deal found 19/2C$ 691
Sat 6/66:25 p.m.
YOW
-
EDI
1 stop10h 45m
Multiple Airlines
Wed 17/68:00 p.m.
EDI
-
YOW
2 stops26h 35m
Multiple Airlines
Deal found 19/2C$ 697
Fri 29/56:25 p.m.
YOW
-
GLA
1 stop10h 15m
Multiple Airlines
Sun 14/69:55 p.m.
GLA
-
YOW
2 stops24h 40m
Multiple Airlines
Deal found 19/2C$ 700
Tue 2/66:25 p.m.
YOW
-
GLA
1 stop10h 15m
Multiple Airlines
Mon 8/69:45 p.m.
GLA
-
YOW
2 stops24h 50m
Multiple Airlines
Deal found 19/2C$ 706
Tue 2/66:25 p.m.
YOW
-
GLA
1 stop10h 15m
Multiple Airlines
Fri 12/69:25 p.m.
GLA
-
YOW
2 stops25h 10m
Multiple Airlines
Deal found 19/2C$ 709
Wed 3/66:25 p.m.
YOW
-
GLA
1 stop10h 15m
Multiple Airlines
Fri 12/69:25 p.m.
GLA
-
YOW
2 stops25h 10m
Multiple Airlines
Deal found 19/2C$ 719
Wed 3/66:25 p.m.
YOW
-
GLA
1 stop10h 15m
Multiple Airlines
Mon 8/69:45 p.m.
GLA
-
YOW
2 stops24h 50m
Multiple Airlines
Deal found 18/2C$ 722
Sun 31/56:25 p.m.
YOW
-
GLA
1 stop10h 15m
Multiple Airlines
Sat 13/67:40 a.m.
GLA
-
YOW
2 stops14h 55m
Multiple Airlines
Deal found 19/2C$ 723
Sun 31/56:25 p.m.
YOW
-
GLA
1 stop10h 15m
Multiple Airlines
Tue 9/68:20 a.m.
GLA
-
YOW
2 stops14h 15m
Multiple Airlines
Deal found 19/2C$ 724

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 20 February 2026.

Round-trip from

C$ 674

One-way from

C$ 322

Popular in

December

Cheapest in

January

Average price

C$ 913

Good round-trip deal

C$ 225 or less

Good one-way deal

C$ 661 or less
31/5-8/6
  • 31/5-8/6
  • 3 total stops
  • 35h 05m total
  • Ottawa to United Kingdom
Search Deals
WestJet
  • WestJet
  • 3/5
  • 2 total stops
  • 32h 40m total
  • Ottawa to United Kingdom
Search Deals
Highest demand for flights based on searches. 0% potential increase in price (C$ 9 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 26 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 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 20 February 2026.
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

Sun 10/5

5:55 a.m.-9:20 p.m.

3 stops34h 25m

Glasgow Intl

Tue 19/5

8:40 p.m.-5:35 p.m.

3 stops25h 55m

C$ 732

OttawaLondon

YOW - STN

YOWSTN

Ottawa

Mon 18/5

5:55 a.m.-3:15 p.m.

3 stops28h 20m

London Stansted

Mon 25/5

10:45 p.m.-5:35 p.m.

2 stops23h 50m

C$ 756

OttawaLondon

YOW - STN

YOWSTN

Ottawa

Wed 6/5

5:55 a.m.-9:20 p.m.

3 stops34h 25m

London Stansted

Sat 16/5

6:35 a.m.-12:20 a.m.

3 stops22h 45m

C$ 761

OttawaLondon

YOW - LGW

YOWLGW

Ottawa

Tue 19/5

6:35 p.m.-10:45 a.m.

1 stop11h 10m

London Gatwick

Mon 1/6

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

1 stop16h 45m

C$ 765

OttawaLondon

YOW - LGW

YOWLGW

Ottawa

Tue 5/5

4:00 p.m.-10:45 a.m.

1 stop13h 45m

London Gatwick

Mon 18/5

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

1 stop16h 45m

C$ 765

OttawaLondon

YOW - LTN

YOWLTN

Ottawa

Sat 2/5

5:55 a.m.-9:55 p.m.

2 stops35h 00m

London Luton

Sat 9/5

9:25 p.m.-5:35 p.m.

2 stops25h 10m

C$ 768

OttawaLondon

YOW - LGW

YOWLGW

Ottawa

Sat 2/5

6:35 p.m.-10:45 a.m.

1 stop11h 10m

London Gatwick

Tue 12/5

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

1 stop16h 45m

C$ 784

OttawaLondon

YOW - LGW

YOWLGW

Ottawa

Mon 18/5

6:35 p.m.-10:45 a.m.

1 stop11h 10m

London Gatwick

Tue 2/6

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

1 stop16h 45m

C$ 784

OttawaLondon

YOW - LGW

YOWLGW

Ottawa

Tue 5/5

6:35 p.m.-10:45 a.m.

1 stop11h 10m

London Gatwick

Wed 13/5

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

1 stop12h 20m

C$ 784

OttawaLondon

YOW - LGW

YOWLGW

Ottawa

Tue 19/5

6:35 p.m.-10:45 a.m.

1 stop11h 10m

London Gatwick

Wed 27/5

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

1 stop12h 20m

C$ 784

Flights are sorted by cheapest round-trip flights first.

Deals found on 18/2

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$ 205). Flying from Ottawa to United Kingdom in August is currently the most expensive (average of C$ 823). 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 20 February 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 23% of weekly flights between Ottawa and United Kingdom have experienced delays in the past year, with the average delay time being 136 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?

Monday 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 23% of flights being delayed.

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 20 February 2026.
Read reviews from past customers who have flown Porter Airlines,Air Transat, andUnited Airlines 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
8.0
Very good
419 reviews
Check prices

Overall

8.0

Entertainment

6.9

Comfort

8.0

Crew

8.6

Boarding

8.2

Food

7.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Feb 2026

YYJ - YYZ

Always great! The Flight Attendants are always polite and attentive! The Polite was great and reminded us all that it was Valentine's Day!
Porter Airlines
8.0
Very good
419 reviews
Porter Airlines
8.0
Very good
419 reviews
Check prices

Overall

8.0

Entertainment

6.9

Comfort

8.0

Crew

8.6

Boarding

8.2

Food

7.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Feb 2026

YYJ - YYZ

Always great! The Flight Attendants are always polite and attentive! The Polite was great and reminded us all that it was Valentine's Day!
Air Transat
7.7
Good
511 reviews
Porter Airlines
8.0
Very good
419 reviews
Check prices

Overall

8.0

Entertainment

6.9

Comfort

8.0

Crew

8.6

Boarding

8.2

Food

7.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Feb 2026

YYJ - YYZ

Always great! The Flight Attendants are always polite and attentive! The Polite was great and reminded us all that it was Valentine's Day!
United Airlines
7.4
Good
9,325 reviews
Porter Airlines
8.0
Very good
419 reviews
Check prices

Overall

8.0

Entertainment

6.9

Comfort

8.0

Crew

8.6

Boarding

8.2

Food

7.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Feb 2026

YYJ - YYZ

Always great! The Flight Attendants are always polite and attentive! The Polite was great and reminded us all that it was Valentine's Day!
Air Canada
7.1
Good
10,732 reviews
Porter Airlines
8.0
Very good
419 reviews
Check prices

Overall

8.0

Entertainment

6.9

Comfort

8.0

Crew

8.6

Boarding

8.2

Food

7.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Feb 2026

YYJ - YYZ

Always great! The Flight Attendants are always polite and attentive! The Polite was great and reminded us all that it was Valentine's Day!
Lufthansa
6.8
Okay
7,789 reviews
Porter Airlines
8.0
Very good
419 reviews
Check prices

Overall

8.0

Entertainment

6.9

Comfort

8.0

Crew

8.6

Boarding

8.2

Food

7.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Feb 2026

YYJ - YYZ

Always great! The Flight Attendants are always polite and attentive! The Polite was great and reminded us all that it was Valentine's Day!

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 Porter Airlines, WestJet, and United Airlines fly from Ottawa to United Kingdom in about 11h 05m. The time it takes to get you to your destination can typically vary by up to 12h 10m. 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$ 363 on WestJet. Other airlines that offer cheap prices include Air Canada from C$ 471 and Porter Airlines from C$ 494 one-way.

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

    While some choose either Ottawa - London City or Ottawa - Edinburgh Turnhouse, 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 Aegean Airlines (33%), Croatia Airlines (33%) or Air Canada (29%) 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$ 1,583, our data indicates the cheapest price to be C$ 865. The most popular route (Ottawa - London Heathrow), is priced around C$ 782.

  • 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$ 205). Flying from Ottawa to United Kingdom in August is currently the most expensive (average of C$ 823). 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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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 20 February 2026.
AirlineCheapestAverageFlexibilityOn-time
Air TransatCheapestC$ 669AverageC$ 1,079FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
LufthansaCheapestC$ 680AverageC$ 1,092FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Porter AirlinesCheapestC$ 706AverageC$ 1,237FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air FranceCheapestC$ 772AverageC$ 1,309FlexibilityNo cancel feeOn-time77%
Search Air France flights
WestJetCheapestC$ 832AverageC$ 1,021FlexibilityNo cancel feeOn-time60%
Search WestJet flights
United AirlinesCheapestC$ 882AverageC$ 1,150FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapestC$ 893AverageC$ 1,152FlexibilityNo 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 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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