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Cheap flights from Ottawa to the United Kingdom from C$ 381

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 24/3. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — LHR
4 Jan — 11 Jan1
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 5 December 2025.

Fri 5/1212:15 p.m.YOW - LHR
1 stop27h 20mMultiple Airlines
Fri 12/1212:00 p.m.LHR - YOW
Nonstop7h 30mMultiple Airlines
Deal found 4/12C$ 921
Fri 5/129:55 p.m.YOW - LHR
Nonstop6h 25mAir Canada
Sat 13/129:00 a.m.LHR - YOW
1 stop13h 43mAir Canada
Deal found 3/12C$ 924
Thu 4/128:00 a.m.YOW - LHR
1 stop31h 35mAir Canada
Thu 11/129:00 a.m.LHR - YOW
1 stop10h 21mAir Canada
Deal found 3/12C$ 925
Fri 5/128:00 a.m.YOW - LHR
1 stop31h 35mAir Canada
Fri 12/129:00 a.m.LHR - YOW
1 stop30h 06mAir Canada
Deal found 4/12C$ 928
Thu 4/1211:10 a.m.YOW - LHR
2 stops14h 30mUnited Airlines
Thu 11/126:50 a.m.LHR - YOW
2 stops14h 42mUnited Airlines
Deal found 3/12C$ 984
Sun 14/123:00 p.m.YOW - LGW
1 stop13h 45mAir Transat
Sun 15/211:40 a.m.LGW - YOW
1 stop11h 53mAir Transat
Deal found 3/12C$ 988
Fri 5/129:55 p.m.YOW - LHR
Nonstop6h 25mAir Canada
Thu 8/19:00 a.m.LHR - YOW
1 stop10h 21mAir Canada
Deal found 3/12C$ 1,023
Sun 14/129:55 p.m.YOW - LHR
Nonstop6h 25mAir Canada
Sun 15/29:00 a.m.LHR - YOW
1 stop13h 43mAir Canada
Deal found 3/12C$ 1,026
Tue 9/122:17 p.m.YOW - LHR
1 stop11h 23mUnited Airlines
Tue 16/127:25 a.m.LHR - YOW
1 stop32h 01mUnited Airlines
Deal found 4/12C$ 1,033
Wed 3/128:00 p.m.YOW - MAN
2 stops31h 20mMultiple Airlines
Wed 10/126:10 a.m.MAN - YOW
2 stops16h 30mMultiple Airlines
Deal found 2/12C$ 1,071
Sun 14/129:30 a.m.YOW - LGW
1 stop19h 30mMultiple Airlines
Sun 15/27:30 p.m.LGW - YOW
2 stops50h 33mMultiple Airlines
Deal found 3/12C$ 1,279
Wed 31/129:25 a.m.YOW - LGW
1 stop15h 35mMultiple Airlines
Wed 7/19:40 a.m.LGW - YOW
2 stops51h 19mMultiple Airlines
Deal found 3/12C$ 1,355

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 5 December 2025.

Round-trip from

C$ 830

One-way from

C$ 381

Popular in

December

Cheapest in

February

Average price

C$ 1,231

Good round-trip deal

C$ 930 or less

Good one-way deal

C$ 845 or less
Porter Airlines
  • Porter Airlines
  • 2/3-5/3
  • 2 total stops
  • 27h 51m total
  • Ottawa to United Kingdom
Search Deals
24/3
  • 24/3
  • 1 total stop
  • 13h 40m total
  • Ottawa to United Kingdom
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (C$ 48 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 December 2025
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 5 December 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

OttawaLondon

YOW - LGW

YOWLGW

Ottawa

Mon 2/3

6:55 p.m.-9:45 a.m.

1 stop9h 50m

London Gatwick

Thu 5/3

11:40 a.m.-12:41 a.m.

1 stop18h 01m

C$ 830

OttawaLondon

YOW - LHR

YOWLHR

Ottawa

Sat 17/1

10:30 a.m.-7:10 a.m.

2 stops15h 40m

London Heathrow

Sat 24/1

9:00 a.m.-2:21 p.m.

1 stop10h 21m

C$ 895

OttawaLondon

YOW - LHR

YOWLHR

Ottawa

Wed 21/1

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

Nonstop6h 25m

London Heathrow

Wed 28/1

12:00 p.m.-2:30 p.m.

Nonstop7h 30m

C$ 928

OttawaLondon

YOW - LHR

YOWLHR

Ottawa

Fri 23/1

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

Nonstop6h 25m

London Heathrow

Sun 1/2

9:00 a.m.-2:21 p.m.

1 stop10h 21m

C$ 931

OttawaLondon

YOW - LHR

YOWLHR

Ottawa

Mon 9/2

2:50 p.m.-7:10 a.m.

1 stop11h 20m

London Heathrow

Fri 20/2

12:00 p.m.-2:30 p.m.

Nonstop7h 30m

C$ 935

OttawaLondon

YOW - LHR

YOWLHR

Ottawa

Thu 26/2

7:55 p.m.-8:35 p.m.

2 stops19h 40m

London Heathrow

Mon 9/3

7:25 p.m.-9:18 p.m.

2 stops29h 53m

C$ 958

OttawaEdinburgh

YOW - EDI

YOWEDI

Ottawa

Mon 2/3

5:40 a.m.-8:15 p.m.

2 stops33h 35m

Edinburgh Turnhouse

Sat 7/3

8:15 a.m.-4:51 p.m.

2 stops13h 36m

C$ 966

OttawaLondon

YOW - STN

YOWSTN

Ottawa

Sat 17/1

8:30 a.m.-5:40 p.m.

3 stops28h 10m

London Stansted

Sat 24/1

8:25 p.m.-5:18 p.m.

2 stops25h 53m

C$ 969

OttawaLondon

YOW - LHR

YOWLHR

Ottawa

Thu 26/2

12:15 p.m.-8:35 p.m.

1 stop27h 20m

London Heathrow

Mon 9/3

1:25 p.m.-7:15 p.m.

1 stop9h 50m

C$ 970

OttawaLondon

YOW - LTN

YOWLTN

Ottawa

Mon 19/1

6:20 p.m.-9:50 p.m.

2 stops22h 30m

London Luton

Mon 26/1

6:35 p.m.-5:41 p.m.

3 stops28h 06m

C$ 974

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/12

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, April is the cheapest month in which you can book a flight from Ottawa to United Kingdom (average of C$ 261). Flying from Ottawa to United Kingdom in August is currently the most expensive (average of C$ 830). 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 5 December 2025.

A simple way to save on the total cost of your ticket is to fly from Ottawa to United Kingdom in the evening. If you’re flexible enough to do this you can expect to save up to 14% on your trip compared to booking a flight at noon.

What is the cheapest day to fly from Ottawa to United Kingdom?

Use this chart to determine the cheapest time to fly round-trip from Ottawa to United Kingdom. Price data was last updated on 8 December 2024.

Travelers seeking maximum savings on their Ottawa to United Kingdom flight should consider departing on Tuesday at noon when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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

About 13% of weekly flights between Ottawa and United Kingdom have experienced delays in the past year, with the average delay time being 151 minutes.

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

Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the evening 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 Thursday 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 13% 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 5 December 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
8.0
Very good
395 reviews
Check prices

Food

7.6

Comfort

8.0

Entertainment

7.0

Overall

8.0

Boarding

8.2

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
Porter Airlines
8.0
Very good
395 reviews
Porter Airlines
8.0
Very good
395 reviews
Check prices

Food

7.6

Comfort

8.0

Entertainment

7.0

Overall

8.0

Boarding

8.2

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
Air Transat
7.8
Good
480 reviews
Porter Airlines
8.0
Very good
395 reviews
Check prices

Food

7.6

Comfort

8.0

Entertainment

7.0

Overall

8.0

Boarding

8.2

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
Air France
7.4
Good
1,502 reviews
Porter Airlines
8.0
Very good
395 reviews
Check prices

Food

7.6

Comfort

8.0

Entertainment

7.0

Overall

8.0

Boarding

8.2

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
Air Canada
7.1
Good
10,500 reviews
Porter Airlines
8.0
Very good
395 reviews
Check prices

Food

7.6

Comfort

8.0

Entertainment

7.0

Overall

8.0

Boarding

8.2

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
Lufthansa
6.8
Okay
7,612 reviews
Porter Airlines
8.0
Very good
395 reviews
Check prices

Food

7.6

Comfort

8.0

Entertainment

7.0

Overall

8.0

Boarding

8.2

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out

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, Air Canada, and Aer Lingus fly from Ottawa to United Kingdom in about 9h 50m. The time it takes to get you to your destination can typically vary by up to 8h 05m. 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$ 324 on WestJet. Other airlines that offer cheap prices include Air Transat from C$ 420 and Air Canada from C$ 480 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 Aegean Airlines (59%), Air Canada (58%) or Austrian Airlines (58%) 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$ 909, our data indicates the cheapest price to be C$ 845. The most popular route (Ottawa - London Heathrow), is priced around C$ 913.

  • 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, April is the cheapest month in which you can book a flight from Ottawa to United Kingdom (average of C$ 261). Flying from Ottawa to United Kingdom in August is currently the most expensive (average of C$ 830). 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 9 airlines flying from Ottawa to United Kingdom

Discover the top 9 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 5 December 2025.
AirlineCheapestAverageFlexibilityOn-time
Air TransatCheapestC$ 690AverageC$ 1,128FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
LufthansaCheapestC$ 694AverageC$ 1,117FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Porter AirlinesCheapestC$ 720AverageC$ 1,193FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air FranceCheapestC$ 737AverageC$ 1,319FlexibilityNo cancel feeOn-time77%
Search Air France flights
Virgin AtlanticCheapestC$ 740AverageC$ 1,063FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
WestJetCheapestC$ 777AverageC$ 1,164FlexibilityNo cancel feeOn-time60%
Search WestJet flights
United AirlinesCheapestC$ 900AverageC$ 1,257FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapestC$ 903AverageC$ 1,191FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
KLMCheapestC$ 1,114AverageC$ 1,468FlexibilityNo 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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