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Cheap flights from Ottawa to the United Kingdom from C$ 318

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 5/6. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — LHR
23 May — 30 May1
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 April 2026.

Sun 24/57:40 p.m.
YOW
-
GLA
1 stop9h 00m
Multiple Airlines
Mon 8/69:45 p.m.
GLA
-
YOW
2 stops24h 50m
Multiple Airlines
Deal found 22/4C$ 717
Wed 10/66:55 a.m.
YOW
-
MAN
3 stops35h 50m
Multiple Airlines
Wed 17/610:25 p.m.
MAN
-
YOW
3 stops30h 55m
Multiple Airlines
Deal found 22/4C$ 723
Thu 4/66:25 p.m.
YOW
-
EDI
1 stop10h 45m
Multiple Airlines
Wed 17/68:05 p.m.
EDI
-
YOW
2 stops26h 30m
Multiple Airlines
Deal found 22/4C$ 732
Fri 24/76:25 p.m.
YOW
-
GLA
1 stop10h 15m
Multiple Airlines
Mon 27/79:45 p.m.
GLA
-
YOW
2 stops24h 50m
Multiple Airlines
Deal found 22/4C$ 818
Mon 1/66:55 a.m.
YOW
-
EDI
1 stop22h 15m
Multiple Airlines
Mon 15/69:25 p.m.
EDI
-
YOW
2 stops25h 10m
Multiple Airlines
Deal found 21/4C$ 820
Tue 26/54:00 p.m.
YOW
-
GLA
1 stop9h 50m
Air Transat
Tue 9/68:35 a.m.
GLA
-
YOW
1 stop11h 20m
Air Transat
Deal found 22/4C$ 821
Fri 24/76:55 a.m.
YOW
-
GLA
1 stop21h 45m
WestJet
Mon 27/711:00 a.m.
GLA
-
YOW
1 stop11h 35m
WestJet
Deal found 22/4C$ 825
Sun 16/86:25 p.m.
YOW
-
GLA
1 stop10h 15m
Multiple Airlines
Sun 23/89:55 p.m.
GLA
-
YOW
2 stops31h 25m
Multiple Airlines
Deal found 22/4C$ 828
Sun 9/86:25 p.m.
YOW
-
GLA
1 stop10h 15m
WestJet
Sat 22/811:00 a.m.
GLA
-
YOW
1 stop11h 35m
WestJet
Deal found 21/4C$ 830
Sun 24/56:45 p.m.
YOW
-
GLA
1 stop31h 05m
Air Transat
Tue 9/68:35 a.m.
GLA
-
YOW
1 stop20h 50m
Air Transat
Deal found 22/4C$ 832
Tue 7/76:55 a.m.
YOW
-
GLA
1 stop21h 45m
WestJet
Thu 16/711:00 a.m.
GLA
-
YOW
1 stop18h 20m
WestJet
Deal found 22/4C$ 843
Wed 8/76:25 p.m.
YOW
-
GLA
1 stop10h 15m
Multiple Airlines
Tue 14/78:20 a.m.
GLA
-
YOW
2 stops14h 15m
Multiple Airlines
Deal found 22/4C$ 846

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 April 2026.

Round-trip from

C$ 717

One-way from

C$ 318

Popular in

December

Cheapest in

February

Average price

C$ 1,037

Good round-trip deal

C$ 951 or less

Good one-way deal

C$ 572 or less
24/5-8/6
  • 24/5-8/6
  • 3 total stops
  • 33h 50m total
  • Ottawa to United Kingdom
Search Deals
WestJet
  • WestJet
  • 5/6
  • 1 total stop
  • 21h 45m total
  • Ottawa to United Kingdom
Search Deals
High demand for flights, 0% potential price rise
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 24 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 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 April 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

OttawaLondon

YOW - LGW

YOWLGW

Ottawa

Fri 5/6

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

1 stop13h 45m

London Gatwick

Tue 9/6

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

1 stop16h 45m

C$ 863

OttawaLondon

YOW - LTN

YOWLTN

Ottawa

Sat 6/6

6:55 a.m.-10:30 p.m.

2 stops34h 35m

London Luton

Sat 13/6

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

2 stops25h 10m

C$ 870

OttawaGlasgow

YOW - GLA

YOWGLA

Ottawa

Sun 14/6

6:55 a.m.-9:40 a.m.

1 stop21h 45m

Glasgow Intl

Thu 18/6

11:00 a.m.-5:35 p.m.

1 stop11h 35m

C$ 899

OttawaLondon

YOW - LTN

YOWLTN

Ottawa

Thu 18/6

6:55 a.m.-11:10 p.m.

2 stops35h 15m

London Luton

Wed 24/6

6:15 a.m.-12:20 a.m.

2 stops23h 05m

C$ 902

OttawaGlasgow

YOW - GLA

YOWGLA

Ottawa

Thu 28/5

6:35 p.m.-6:50 a.m.

1 stop31h 15m

Glasgow Intl

Tue 9/6

8:35 a.m.-2:55 p.m.

1 stop11h 20m

C$ 911

OttawaLondon

YOW - LTN

YOWLTN

Ottawa

Thu 4/6

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

2 stops22h 35m

London Luton

Thu 11/6

6:05 a.m.-8:00 p.m.

2 stops18h 55m

C$ 921

OttawaLondon

YOW - LTN

YOWLTN

Ottawa

Mon 1/6

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

2 stops34h 55m

London Luton

Mon 8/6

2:05 p.m.-5:35 p.m.

3 stops32h 30m

C$ 925

OttawaGlasgow

YOW - GLA

YOWGLA

Ottawa

Fri 10/7

8:40 a.m.-6:50 a.m.

1 stop17h 10m

Glasgow Intl

Tue 14/7

8:35 a.m.-2:55 p.m.

1 stop11h 20m

C$ 933

OttawaGlasgow

YOW - GLA

YOWGLA

Ottawa

Sat 11/7

8:40 a.m.-6:50 a.m.

1 stop17h 10m

Glasgow Intl

Wed 15/7

8:35 a.m.-8:05 a.m.

1 stop28h 30m

C$ 933

OttawaGlasgow

YOW - GLA

YOWGLA

Ottawa

Sat 11/7

8:40 a.m.-6:50 a.m.

1 stop17h 10m

Glasgow Intl

Tue 14/7

8:35 a.m.-2:55 p.m.

1 stop11h 20m

C$ 933

Flights are sorted by cheapest round-trip flights first.

Deals found on 21/4

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$ 117). Flying from Ottawa to United Kingdom in August is currently the most expensive (average of C$ 2,478). 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 April 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 25% 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 25% 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 23 April 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
435 reviews
Check prices

Entertainment

7.0

Food

7.6

Boarding

8.2

Overall

8.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
Porter Airlines
8.0
Very good
435 reviews
Porter Airlines
8.0
Very good
435 reviews
Check prices

Entertainment

7.0

Food

7.6

Boarding

8.2

Overall

8.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
Air Transat
7.7
Good
538 reviews
Porter Airlines
8.0
Very good
435 reviews
Check prices

Entertainment

7.0

Food

7.6

Boarding

8.2

Overall

8.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
United Airlines
7.4
Good
9,636 reviews
Porter Airlines
8.0
Very good
435 reviews
Check prices

Entertainment

7.0

Food

7.6

Boarding

8.2

Overall

8.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
Air Canada
7.1
Good
10,957 reviews
Porter Airlines
8.0
Very good
435 reviews
Check prices

Entertainment

7.0

Food

7.6

Boarding

8.2

Overall

8.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
Lufthansa
6.8
Okay
7,940 reviews
Porter Airlines
8.0
Very good
435 reviews
Check prices

Entertainment

7.0

Food

7.6

Boarding

8.2

Overall

8.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.

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 Air Transat fly from Ottawa to United Kingdom in about 13h 45m. The time it takes to get you to your destination can typically vary by up to 18h 55m. 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$ 292 on WestJet. Other airlines that offer cheap prices include Air Canada from C$ 470 and Porter Airlines from C$ 493 one-way.

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

    While some choose either Ottawa - London Stansted or Ottawa - London Gatwick, 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 United Airlines (63%), Air Canada (56%) or Austrian Airlines (56%) 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$ 572. The most popular route (Ottawa - London Heathrow), is priced around C$ 861.

  • 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$ 117). Flying from Ottawa to United Kingdom in August is currently the most expensive (average of C$ 2,478). 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 23 April 2026.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapestC$ 117AverageC$ 1,012FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Air TransatCheapestC$ 668AverageC$ 1,108FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
LufthansaCheapestC$ 679AverageC$ 1,136FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Porter AirlinesCheapestC$ 703AverageC$ 1,257FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air FranceCheapestC$ 770AverageC$ 1,276FlexibilityNo cancel feeOn-time77%
Search Air France flights
United AirlinesCheapestC$ 880AverageC$ 1,116FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapestC$ 901AverageC$ 1,145FlexibilityNo 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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