Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from the United Kingdom to Ottawa from C$ 397

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 10/5. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — YOW
2 Apr — 9 Apr1
1 adult

Cheap flight deals from United Kingdom to Ottawa

Keep the following information in mind while searching for United Kingdom to Ottawa flight deals. Data was last updated 28 March 2025.

Round-trip from

C$ 749

One-way from

C$ 397

Popular in

August

Cheapest in

January

Average price

C$ 950

Good round-trip deal

C$ 871 or less

Good one-way deal

C$ 928 or less
United Airlines
  • United Airlines
  • 9/4-14/4
  • 4 total stops
  • 34h 52m total
  • United Kingdom to Ottawa
10/5
  • 10/5
  • 3 total stops
  • 40h 50m total
  • United Kingdom to Ottawa
Highest demand for flights based on searches. 15% potential increase in price (C$ 281 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease (C$ 45 potential savings vs. average RT price).
Average for round-trip flights in March 2025
Price to beat on a round-trip flight from United Kingdom to Ottawa.
Price to beat on a one-way flight from United Kingdom to Ottawa.

Find flight deals from United Kingdom to Ottawa

Cheapest flights from United Kingdom to Ottawa
Explore the most affordable flight options available from United Kingdom to Ottawa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 28 March 2025.

Sat 29/39:30 a.m.LHR - YOW
2 stops16h 31mUnited Airlines
Wed 9/45:15 a.m.YOW - LHR
2 stops20h 05mUnited Airlines
Deal found 27/3C$ 738
Mon 16/66:15 a.m.LHR - YOW
1 stop13h 50mAir France
Sun 6/75:15 p.m.YOW - LHR
1 stop18h 20mAir France
Deal found 27/3C$ 753
Sun 18/59:30 a.m.LHR - YOW
2 stops12h 45mAir Canada
Thu 22/59:20 a.m.YOW - LHR
2 stops16h 25mAir Canada
Deal found 27/3C$ 758
Thu 26/62:45 p.m.LHR - YOW
2 stops14h 37mMultiple Airlines
Mon 14/75:15 p.m.YOW - LHR
1 stop18h 20mMultiple Airlines
Deal found 27/3C$ 790
Wed 14/510:00 p.m.STN - YOW
2 stops31h 22mMultiple Airlines
Sat 24/55:55 a.m.YOW - STN
2 stops28h 35mMultiple Airlines
Deal found 28/3C$ 806
Fri 9/511:35 a.m.LGW - YOW
2 stops17h 47mMultiple Airlines
Sun 11/55:55 a.m.YOW - LGW
1 stop23h 50mMultiple Airlines
Deal found 27/3C$ 825
Thu 10/47:45 a.m.LCY - YOW
2 stops21h 24mKLM
Sun 13/45:15 p.m.YOW - LCY
2 stops18h 25mKLM
Deal found 27/3C$ 839
Fri 9/512:40 p.m.LGW - YOW
1 stop13h 21mAir Transat
Sun 11/54:40 p.m.YOW - LGW
1 stop13h 05mAir Transat
Deal found 27/3C$ 842
Thu 26/68:30 a.m.LHR - YOW
2 stops18h 35mLufthansa
Tue 15/71:55 p.m.YOW - LHR
1 stop14h 40mLufthansa
Deal found 27/3C$ 848
Wed 30/41:45 p.m.MAN - YOW
2 stops15h 37mMultiple Airlines
Tue 13/55:15 p.m.YOW - MAN
1 stop15h 10mMultiple Airlines
Deal found 27/3C$ 896
Thu 22/58:35 a.m.GLA - YOW
1 stop17h 26mAir Transat
Wed 28/54:40 p.m.YOW - GLA
1 stop9h 10mAir Transat
Deal found 27/3C$ 910
Thu 26/66:00 a.m.BHX - YOW
1 stop14h 05mAir France
Sun 13/75:15 p.m.YOW - BHX
1 stop11h 15mAir France
Deal found 27/3C$ 938

Cheapflights Fare Finder

Customize your flight search to find flights from United Kingdom to Ottawa 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 28 March 2025.
Use the filters below to find and compare flights from the United Kingdom to Ottawa that are best for you.

Fly from

United Kingdom

Fly to

Ottawa

Route

Depart

Return

Price

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Wed 9/4

7:30 a.m.-6:52 p.m.

2 stops16h 22m

Ottawa

Mon 14/4

9:50 a.m.-9:20 a.m.

2 stops18h 30m

C$ 749

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Mon 16/6

6:15 a.m.-3:05 p.m.

1 stop13h 50m

Ottawa

Sun 6/7

5:15 p.m.-4:35 p.m.

1 stop18h 20m

C$ 753

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Sun 18/5

9:30 a.m.-5:15 p.m.

2 stops12h 45m

Ottawa

Thu 22/5

9:20 a.m.-6:45 a.m.

2 stops16h 25m

C$ 758

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Sat 17/5

11:45 a.m.-12:22 a.m.

2 stops17h 37m

Ottawa

Sun 25/5

5:15 p.m.-4:35 p.m.

1 stop18h 20m

C$ 793

LondonOttawa

LGW - YOW

LGWYOW

London Gatwick

Fri 9/5

11:35 a.m.-12:22 a.m.

2 stops17h 47m

Ottawa

Sun 11/5

5:55 a.m.-10:45 a.m.

1 stop23h 50m

C$ 825

LondonOttawa

LCY - YOW

LCYYOW

London City

Thu 10/4

7:45 a.m.-12:09 a.m.

2 stops21h 24m

Ottawa

Sun 13/4

5:15 p.m.-4:40 p.m.

2 stops18h 25m

C$ 839

LondonOttawa

LGW - YOW

LGWYOW

London Gatwick

Fri 9/5

12:40 p.m.-9:01 p.m.

1 stop13h 21m

Ottawa

Sun 11/5

4:40 p.m.-10:45 a.m.

1 stop13h 05m

C$ 842

LondonOttawa

STN - YOW

STNYOW

London Stansted

Mon 16/6

10:00 p.m.-12:22 a.m.

3 stops31h 22m

Ottawa

Sun 6/7

5:55 a.m.-7:30 p.m.

2 stops32h 35m

C$ 843

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Wed 7/5

9:05 a.m.-12:19 a.m.

2 stops44h 14m

Ottawa

Thu 22/5

7:55 p.m.-6:35 a.m.

1 stop29h 40m

C$ 848

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Mon 12/5

9:30 a.m.-10:07 p.m.

1 stop17h 37m

Ottawa

Wed 21/5

9:00 p.m.-8:35 a.m.

Nonstop6h 35m

C$ 873

Flights are sorted by cheapest round-trip flights first.

Deals found on 27/3

Showing 1-10 of 46 results
1
2
3
...
5

Best time to book a flight from United Kingdom to Ottawa

Have a flexible travel schedule? Discover the best time to fly to Ottawa from United Kingdom 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 the United Kingdom to Ottawa

What is the cheapest month to book a flight from United Kingdom to Ottawa?

Currently, October is the cheapest month in which you can book a flight from United Kingdom to Ottawa (average of C$ 224). Flying from United Kingdom to Ottawa in December is currently the most expensive (average of C$ 326). 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 GB to YOW?

Find hourly flight availability from United Kingdom to Ottawa. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 28 March 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from United Kingdom to Ottawa as you normally would.

Rainfall in Ottawa by month

Plan your trip to Ottawa by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Ottawa ranges from 50.0 - 93.0 mm per month. June is typically the wettest month, when rainfall can reach 93.0 mm. February is typically the driest time to visit Ottawa when rainfall is around 50.0 mm.

Temperature in Ottawa by month

Plan your trip to Ottawa by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Ottawa, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 21.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -10.0 C).

Reviews of airlines servicing Ottawa

Get insights into the airlines that provide service to Ottawa. 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 Ottawa. Reviews last updated 28 March 2025.
Get a feel of what it's like to fly with Delta, KLM and Air Transat from United Kingdom to Ottawa by reading reviews from past customers. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Comfort

8.0

Overall

8.0

Reviews

1 / 20
6.0
Good

Moishe,Oct 2024

LGA - DEN

The plane had a mechanical error that delayed us by almost an hour. On the positive side the captain kept us all in the know
8.0
Very good

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Comfort

8.0

Overall

8.0

Reviews

1 / 20
6.0
Good

Moishe,Oct 2024

LGA - DEN

The plane had a mechanical error that delayed us by almost an hour. On the positive side the captain kept us all in the know

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Comfort

8.0

Overall

8.0

Reviews

1 / 20
6.0
Good

Moishe,Oct 2024

LGA - DEN

The plane had a mechanical error that delayed us by almost an hour. On the positive side the captain kept us all in the know

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Comfort

8.0

Overall

8.0

Reviews

1 / 20
6.0
Good

Moishe,Oct 2024

LGA - DEN

The plane had a mechanical error that delayed us by almost an hour. On the positive side the captain kept us all in the know

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Comfort

8.0

Overall

8.0

Reviews

1 / 20
6.0
Good

Moishe,Oct 2024

LGA - DEN

The plane had a mechanical error that delayed us by almost an hour. On the positive side the captain kept us all in the know

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Comfort

8.0

Overall

8.0

Reviews

1 / 20
6.0
Good

Moishe,Oct 2024

LGA - DEN

The plane had a mechanical error that delayed us by almost an hour. On the positive side the captain kept us all in the know

Related info for your journey

Find useful and relevant information for your journey from United Kingdom to Ottawa. 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 into for flights to Ottawa from United Kingdom?

    Located just 10.6 km from the city centre, Ottawa (YOW) is the airport most travelers will use when flying to Ottawa from United Kingdom.

  • What are the cheapest airlines to fly from United Kingdom to Ottawa one-way?

    C$ 718 is the cheapest one-way deal found within the past few days, from Aer Lingus. You may also be able to find cheap deals on WestJet and Lufthansa, with prices starting from C$ 770 and C$ 816, respectively.

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

  • What are the cheapest flights from United Kingdom to Ottawa?

    Looking for the cheapest flight from United Kingdom to Ottawa? While on average our users pay C$ 1,762, our data indicates the cheapest price to be C$ 851. The most popular route (London Heathrow - Ottawa), is priced around C$ 552.

  • Can I find deals for flights from United Kingdom to Ottawa that include hotel bookings?

    Yes. In addition to deals on United Kingdom to Ottawa flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from United Kingdom to Ottawa?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from United Kingdom to Ottawa.

  • Can I find deals for business class flights from United Kingdom to Ottawa?

    Yes. Cheapflights offers flight deals from United Kingdom to Ottawa 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 United Kingdom to Ottawa?

    Currently, October is the cheapest month in which you can book a flight from United Kingdom to Ottawa (average of C$ 224). Flying from United Kingdom to Ottawa in December is currently the most expensive (average of C$ 326). 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

Travelling to a place near the United Kingdom?

Book flights to the United Kingdom if you plan to visit one of these locations
Gatineau
Perth
Smiths Falls
Prescott
Brockville
Wakefield
Lanark

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for United Kingdom to Ottawa

See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from United Kingdom to Ottawa

Discover the top 2 airlines that operate flights from United Kingdom to Ottawa. 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 28 March 2025.
AirlineCheapestAverageFlexibilityOn-time
Air FranceCheapestC$ 824AverageC$ 998FlexibilityNo cancel feeOn-time77%
Search Air France flights
Air CanadaCheapestC$ 870AverageC$ 1,111FlexibilityNo 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 United Kingdom to Ottawa?

Cheapflights helps you search for flights from United Kingdom to Ottawa via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from United Kingdom to Ottawa?

Cheapflights simply makes it quick and affordable to book flights from United Kingdom to Ottawa by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from United Kingdom to Ottawa with no change fees?

Certainly. Search results for flights to Ottawa from United Kingdom shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from United Kingdom to Ottawa become cheaper?

Yes, Cheapflights offers price alerts on United Kingdom to Ottawa flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.