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Cheap flights from Ottawa to the United Kingdom from C$ 371

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 9/2. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — LHR
4 Dec — 11 Dec1
1 adult
1 adult, Economy, 0 bags

Find 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 4 November 2025.

Thu 20/113:05 p.m.YOW - LGW
1 stop13h 40mAir Transat
Sun 30/1111:40 a.m.LGW - YOW
1 stop11h 44mAir Transat
Deal found 2/11C$ 904
Thu 20/116:45 a.m.YOW - LGW
1 stop22h 00mAir Transat
Tue 2/1211:40 a.m.LGW - YOW
1 stop11h 45mAir Transat
Deal found 2/11C$ 905
Tue 11/1112:05 p.m.YOW - LHR
1 stop13h 25mMultiple Airlines
Tue 18/119:00 a.m.LHR - YOW
2 stops14h 38mMultiple Airlines
Deal found 3/11C$ 905
Wed 12/1110:30 a.m.YOW - LHR
2 stops15h 40mMultiple Airlines
Sun 16/1112:00 p.m.LHR - YOW
Nonstop7h 30mMultiple Airlines
Deal found 4/11C$ 908
Thu 4/124:00 p.m.YOW - LHR
1 stop10h 10mMultiple Airlines
Thu 11/126:00 a.m.LHR - YOW
2 stops18h 18mMultiple Airlines
Deal found 4/11C$ 911
Sun 16/119:55 p.m.YOW - LHR
Nonstop6h 25mLufthansa
Sun 23/1112:00 p.m.LHR - YOW
Nonstop7h 30mLufthansa
Deal found 3/11C$ 912
Sun 16/116:55 p.m.YOW - LGW
1 stop9h 50mAir Transat
Sun 23/1111:40 a.m.LGW - YOW
1 stop25h 44mAir Transat
Deal found 3/11C$ 914
Wed 12/1110:30 a.m.YOW - LHR
2 stops15h 40mAir Canada
Sun 16/116:50 a.m.LHR - YOW
2 stops12h 17mAir Canada
Deal found 2/11C$ 914
Wed 10/129:55 p.m.YOW - LHR
Nonstop6h 25mMultiple Airlines
Thu 15/17:25 p.m.LHR - YOW
2 stops26h 53mMultiple Airlines
Deal found 4/11C$ 915
Thu 27/114:00 p.m.YOW - LHR
1 stop10h 10mMultiple Airlines
Wed 3/129:00 a.m.LHR - YOW
1 stop10h 21mMultiple Airlines
Deal found 3/11C$ 917
Fri 5/129:55 p.m.YOW - LHR
Nonstop6h 25mMultiple Airlines
Fri 12/129:00 a.m.LHR - YOW
1 stop13h 43mMultiple Airlines
Deal found 4/11C$ 919
Wed 12/119:55 p.m.YOW - LHR
Nonstop6h 25mMultiple Airlines
Wed 19/119:00 a.m.LHR - YOW
2 stops13h 42mMultiple Airlines
Deal found 3/11C$ 921

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 4 November 2025.

Round-trip from

C$ 802

One-way from

C$ 371

Popular in

December

Cheapest in

February

Average price

C$ 1,063

Good round-trip deal

C$ 990 or less

Good one-way deal

C$ 988 or less
Air France
  • Air France
  • 13/1-30/1
  • 2 total stops
  • 33h 40m total
  • Ottawa to United Kingdom
Search Deals
WestJet
  • WestJet
  • 9/2
  • 2 total stops
  • 36h 35m total
  • Ottawa to United Kingdom
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (C$ 78 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 28 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 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 4 November 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

OttawaBirmingham

YOW - BHX

YOWBHX

Ottawa

Tue 13/1

5:20 p.m.-5:50 p.m.

1 stop19h 30m

Birmingham

Sat 31/1

4:15 p.m.-3:10 p.m.

1 stop27h 55m

C$ 820

OttawaBirmingham

YOW - BHX

YOWBHX

Ottawa

Wed 14/1

5:20 p.m.-9:30 a.m.

1 stop11h 10m

Birmingham

Sat 31/1

4:15 p.m.-3:10 p.m.

1 stop27h 55m

C$ 820

OttawaBirmingham

YOW - BHX

YOWBHX

Ottawa

Tue 13/1

5:20 p.m.-12:50 p.m.

2 stops14h 30m

Birmingham

Fri 30/1

6:00 a.m.-3:10 p.m.

1 stop14h 10m

C$ 845

OttawaBirmingham

YOW - BHX

YOWBHX

Ottawa

Wed 14/1

5:20 p.m.-12:50 p.m.

2 stops14h 30m

Birmingham

Fri 30/1

6:00 a.m.-3:10 p.m.

1 stop14h 10m

C$ 845

OttawaBirmingham

YOW - BHX

YOWBHX

Ottawa

Wed 14/1

5:20 p.m.-12:50 p.m.

2 stops14h 30m

Birmingham

Thu 29/1

1:35 p.m.-12:42 a.m.

2 stops16h 07m

C$ 889

OttawaBirmingham

YOW - BHX

YOWBHX

Ottawa

Tue 13/1

5:20 p.m.-12:50 p.m.

2 stops14h 30m

Birmingham

Thu 29/1

1:35 p.m.-12:42 a.m.

2 stops16h 07m

C$ 889

OttawaBirmingham

YOW - BHX

YOWBHX

Ottawa

Tue 13/1

5:20 p.m.-12:50 p.m.

2 stops14h 30m

Birmingham

Sat 31/1

1:30 p.m.-12:42 a.m.

2 stops16h 12m

C$ 889

OttawaBirmingham

YOW - BHX

YOWBHX

Ottawa

Wed 14/1

5:20 p.m.-12:50 p.m.

2 stops14h 30m

Birmingham

Sat 31/1

1:30 p.m.-12:42 a.m.

2 stops16h 12m

C$ 889

OttawaLondon

YOW - LGW

YOWLGW

Ottawa

Wed 19/11

3:05 p.m.-9:45 a.m.

1 stop13h 40m

London Gatwick

Mon 1/12

11:40 a.m.-8:25 a.m.

1 stop25h 45m

C$ 904

OttawaLondon

YOW - LGW

YOWLGW

Ottawa

Thu 20/11

3:05 p.m.-9:45 a.m.

1 stop13h 40m

London Gatwick

Fri 28/11

11:40 a.m.-6:24 p.m.

1 stop11h 44m

C$ 904

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/11

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, December is the cheapest month in which you can book a flight from Ottawa to United Kingdom (average of C$ 132). Flying from Ottawa to United Kingdom in August is currently the most expensive (average of C$ 834). 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 4 November 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.

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 4 November 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
387 reviews
Check prices

Food

7.6

Boarding

8.2

Crew

8.6

Comfort

8.0

Overall

8.0

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Kelly,Nov 2025

YVR - YUL

I recently flew with Porter Airlines on Flight PD372 on October 30th, and unfortunately, had a very disappointing experience. At the gate, one of their attendants gave me two boarding passes. I assumed these were for my itinerary from Vancouver to Montreal and back, but one of the boarding passes unexpectedly included a connecting flight to Toronto, which was never part of my booking or invoice. As a result of this error, my checked baggage was mistakenly routed to Toronto. When I contacted Porter’s customer service, I spoke to an agent who apologized on behalf of the attendant (employee number 13209961) and promised to have my luggage flown back to Montreal. However, shortly after, I was told there was nothing they could do except for me to travel to Toronto myself to pick up my bag. This is highly unreasonable and unfair, considering the issue was caused by their staff printing the wrong boarding pass. This entire situation caused me significant inconvenience and stress. I expected Porter to correct the mistake and deliver my luggage as originally planned, but instead, I was left with the burden of fixing an error that was not mine. I even have a photo of the staff badge of the employee who made the promise, yet the company still failed to honor it. I hope Porter Airlines reviews their internal communication and baggage handling procedures to prevent this from happening to other passengers. Customer care and responsibility fell short in this experience, and I am still waiting for a satisfactory resolution.
Porter Airlines
8.0
Very good
387 reviews
Porter Airlines
8.0
Very good
387 reviews
Check prices

Food

7.6

Boarding

8.2

Crew

8.6

Comfort

8.0

Overall

8.0

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Kelly,Nov 2025

YVR - YUL

I recently flew with Porter Airlines on Flight PD372 on October 30th, and unfortunately, had a very disappointing experience. At the gate, one of their attendants gave me two boarding passes. I assumed these were for my itinerary from Vancouver to Montreal and back, but one of the boarding passes unexpectedly included a connecting flight to Toronto, which was never part of my booking or invoice. As a result of this error, my checked baggage was mistakenly routed to Toronto. When I contacted Porter’s customer service, I spoke to an agent who apologized on behalf of the attendant (employee number 13209961) and promised to have my luggage flown back to Montreal. However, shortly after, I was told there was nothing they could do except for me to travel to Toronto myself to pick up my bag. This is highly unreasonable and unfair, considering the issue was caused by their staff printing the wrong boarding pass. This entire situation caused me significant inconvenience and stress. I expected Porter to correct the mistake and deliver my luggage as originally planned, but instead, I was left with the burden of fixing an error that was not mine. I even have a photo of the staff badge of the employee who made the promise, yet the company still failed to honor it. I hope Porter Airlines reviews their internal communication and baggage handling procedures to prevent this from happening to other passengers. Customer care and responsibility fell short in this experience, and I am still waiting for a satisfactory resolution.
Air Transat
7.8
Good
470 reviews
Porter Airlines
8.0
Very good
387 reviews
Check prices

Food

7.6

Boarding

8.2

Crew

8.6

Comfort

8.0

Overall

8.0

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Kelly,Nov 2025

YVR - YUL

I recently flew with Porter Airlines on Flight PD372 on October 30th, and unfortunately, had a very disappointing experience. At the gate, one of their attendants gave me two boarding passes. I assumed these were for my itinerary from Vancouver to Montreal and back, but one of the boarding passes unexpectedly included a connecting flight to Toronto, which was never part of my booking or invoice. As a result of this error, my checked baggage was mistakenly routed to Toronto. When I contacted Porter’s customer service, I spoke to an agent who apologized on behalf of the attendant (employee number 13209961) and promised to have my luggage flown back to Montreal. However, shortly after, I was told there was nothing they could do except for me to travel to Toronto myself to pick up my bag. This is highly unreasonable and unfair, considering the issue was caused by their staff printing the wrong boarding pass. This entire situation caused me significant inconvenience and stress. I expected Porter to correct the mistake and deliver my luggage as originally planned, but instead, I was left with the burden of fixing an error that was not mine. I even have a photo of the staff badge of the employee who made the promise, yet the company still failed to honor it. I hope Porter Airlines reviews their internal communication and baggage handling procedures to prevent this from happening to other passengers. Customer care and responsibility fell short in this experience, and I am still waiting for a satisfactory resolution.
Air France
7.4
Good
1,482 reviews
Porter Airlines
8.0
Very good
387 reviews
Check prices

Food

7.6

Boarding

8.2

Crew

8.6

Comfort

8.0

Overall

8.0

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Kelly,Nov 2025

YVR - YUL

I recently flew with Porter Airlines on Flight PD372 on October 30th, and unfortunately, had a very disappointing experience. At the gate, one of their attendants gave me two boarding passes. I assumed these were for my itinerary from Vancouver to Montreal and back, but one of the boarding passes unexpectedly included a connecting flight to Toronto, which was never part of my booking or invoice. As a result of this error, my checked baggage was mistakenly routed to Toronto. When I contacted Porter’s customer service, I spoke to an agent who apologized on behalf of the attendant (employee number 13209961) and promised to have my luggage flown back to Montreal. However, shortly after, I was told there was nothing they could do except for me to travel to Toronto myself to pick up my bag. This is highly unreasonable and unfair, considering the issue was caused by their staff printing the wrong boarding pass. This entire situation caused me significant inconvenience and stress. I expected Porter to correct the mistake and deliver my luggage as originally planned, but instead, I was left with the burden of fixing an error that was not mine. I even have a photo of the staff badge of the employee who made the promise, yet the company still failed to honor it. I hope Porter Airlines reviews their internal communication and baggage handling procedures to prevent this from happening to other passengers. Customer care and responsibility fell short in this experience, and I am still waiting for a satisfactory resolution.
Air Canada
7.1
Good
10,400 reviews
Porter Airlines
8.0
Very good
387 reviews
Check prices

Food

7.6

Boarding

8.2

Crew

8.6

Comfort

8.0

Overall

8.0

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Kelly,Nov 2025

YVR - YUL

I recently flew with Porter Airlines on Flight PD372 on October 30th, and unfortunately, had a very disappointing experience. At the gate, one of their attendants gave me two boarding passes. I assumed these were for my itinerary from Vancouver to Montreal and back, but one of the boarding passes unexpectedly included a connecting flight to Toronto, which was never part of my booking or invoice. As a result of this error, my checked baggage was mistakenly routed to Toronto. When I contacted Porter’s customer service, I spoke to an agent who apologized on behalf of the attendant (employee number 13209961) and promised to have my luggage flown back to Montreal. However, shortly after, I was told there was nothing they could do except for me to travel to Toronto myself to pick up my bag. This is highly unreasonable and unfair, considering the issue was caused by their staff printing the wrong boarding pass. This entire situation caused me significant inconvenience and stress. I expected Porter to correct the mistake and deliver my luggage as originally planned, but instead, I was left with the burden of fixing an error that was not mine. I even have a photo of the staff badge of the employee who made the promise, yet the company still failed to honor it. I hope Porter Airlines reviews their internal communication and baggage handling procedures to prevent this from happening to other passengers. Customer care and responsibility fell short in this experience, and I am still waiting for a satisfactory resolution.
Lufthansa
6.8
Okay
7,547 reviews
Porter Airlines
8.0
Very good
387 reviews
Check prices

Food

7.6

Boarding

8.2

Crew

8.6

Comfort

8.0

Overall

8.0

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Kelly,Nov 2025

YVR - YUL

I recently flew with Porter Airlines on Flight PD372 on October 30th, and unfortunately, had a very disappointing experience. At the gate, one of their attendants gave me two boarding passes. I assumed these were for my itinerary from Vancouver to Montreal and back, but one of the boarding passes unexpectedly included a connecting flight to Toronto, which was never part of my booking or invoice. As a result of this error, my checked baggage was mistakenly routed to Toronto. When I contacted Porter’s customer service, I spoke to an agent who apologized on behalf of the attendant (employee number 13209961) and promised to have my luggage flown back to Montreal. However, shortly after, I was told there was nothing they could do except for me to travel to Toronto myself to pick up my bag. This is highly unreasonable and unfair, considering the issue was caused by their staff printing the wrong boarding pass. This entire situation caused me significant inconvenience and stress. I expected Porter to correct the mistake and deliver my luggage as originally planned, but instead, I was left with the burden of fixing an error that was not mine. I even have a photo of the staff badge of the employee who made the promise, yet the company still failed to honor it. I hope Porter Airlines reviews their internal communication and baggage handling procedures to prevent this from happening to other passengers. Customer care and responsibility fell short in this experience, and I am still waiting for a satisfactory resolution.

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 France, KLM, and Porter Airlines fly from Ottawa to United Kingdom in about 13h 40m. The time it takes to get you to your destination can typically vary by up to 5h 50m. 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 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 (87%), Aegean Airlines (87%) or Austrian Airlines (87%) 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$ 1,589, our data indicates the cheapest price to be C$ 724. The most popular route (Ottawa - London Heathrow), is priced around C$ 879.

  • 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, December is the cheapest month in which you can book a flight from Ottawa to United Kingdom (average of C$ 132). Flying from Ottawa to United Kingdom in August is currently the most expensive (average of C$ 834). 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 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 4 November 2025.
AirlineCheapestAverageFlexibilityOn-time
Air TransatCheapestC$ 694AverageC$ 1,134FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
LufthansaCheapestC$ 698AverageC$ 1,125FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Porter AirlinesCheapestC$ 724AverageC$ 1,211FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air FranceCheapestC$ 742AverageC$ 1,292FlexibilityNo cancel feeOn-time77%
Search Air France flights
Virgin AtlanticCheapestC$ 744AverageC$ 828FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
WestJetCheapestC$ 781AverageC$ 1,193FlexibilityNo cancel feeOn-time60%
Search WestJet flights
United AirlinesCheapestC$ 905AverageC$ 1,259FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapestC$ 910AverageC$ 1,207FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
KLMCheapestC$ 1,202AverageC$ 1,495FlexibilityNo 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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