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

C$ 632 is the cheapest one-way deal found within the past few days, from Air Transat. You may also be able to find cheap deals on WestJet and Aer Lingus, with prices starting from C$ 699 and C$ 843, respectively.

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.

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).

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

While some choose either London Gatwick - Ottawa or London City - Ottawa, London Heathrow - Ottawa is the most popular route 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$ 1,679, our data indicates the cheapest price to be C$ 738. The most popular route (London Heathrow - Ottawa), is priced around C$ 873.

What are the most reliable airlines from United Kingdom to Ottawa?

Before booking your flight to Ottawa from United Kingdom, check out the most reliable airlines to get you to your destination on time: Air Canada (90%), Aegean Airlines (90%), Austrian Airlines( 90%).

What are the most popular airlines that fly from United Kingdom to Ottawa?

The most popular airlines flying from United Kingdom to Ottawa are Air Canada, Air France and Lufthansa. Something to consider prior to booking your flight.

How far in advance should I book a flight from United Kingdom to Ottawa?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 33 days in advance, which can save you up to 24% on flights from United Kingdom to Ottawa compared to booking the week you need them. Waiting 33 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at C$ 947. For sooner than that we have options available in the next 3 days from C$ 1,053.

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

Due to multiple factors, expect to potentially pay more when booking in August. For low rates, January can be a great choice for travel to Ottawa. Flights to Ottawa from United Kingdom in January are about C$ 1,026 on average during January, but can be found for as low as C$ 692.

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.

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.

C$ 451+ Flights from the United Kingdom to Ottawa

Cheap flight deals from United Kingdom to Ottawa

Round-trip from	C$ 859
One-way from	C$ 451
Popular in	August
Cheapest in	January
Average price	C$ 1,402
Good round-trip deal	C$ 745 or less
Good one-way deal	C$ 947 or less

26/8-8/9
3 total stops
46h 26m total
United Kingdom to Ottawa

Search Deals

15/9
2 total stops
31h 22m total
United Kingdom to Ottawa

Search Deals

Highest demand for flights based on searches. 15% potential increase in price (C$ 254 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (C$ 49 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in August 2025

Search Deals

Price to beat on a round-trip flight from United Kingdom to Ottawa.

Search Deals

Price to beat on a one-way flight from United Kingdom to Ottawa.

Search Deals

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 1 August 2025.

Tue 26/82:00 p.m.LGW - YOW

1 stop32h 06mMultiple Airlines

Mon 8/911:00 a.m.YOW - LGW

2 stops14h 20mMultiple Airlines

Deal found 30/7C$ 859

Fri 28/119:00 a.m.LHR - YOW

1 stop11h 10mVirgin Atlantic

Mon 15/125:20 p.m.YOW - LHR

1 stop18h 15mVirgin Atlantic

Deal found 29/7C$ 879

Mon 8/98:35 a.m.GLA - YOW

1 stop17h 00mAir Transat

Sat 20/92:20 p.m.YOW - GLA

1 stop11h 30mAir Transat

Deal found 30/7C$ 887

Wed 1/103:20 p.m.LHR - YOW

2 stops14h 02mAir France

Tue 14/105:15 p.m.YOW - LHR

1 stop12h 15mAir France

Deal found 29/7C$ 888

Thu 23/1012:40 p.m.LGW - YOW

1 stop12h 55mAir Transat

Tue 25/115:50 p.m.YOW - LGW

1 stop10h 55mAir Transat

Deal found 30/7C$ 894

Thu 9/106:00 a.m.LHR - YOW

2 stops23h 22mMultiple Airlines

Tue 21/105:55 a.m.YOW - LHR

2 stops23h 25mMultiple Airlines

Deal found 30/7C$ 905

Thu 23/106:50 a.m.LHR - YOW

2 stops12h 01mAir Canada

Tue 25/112:50 p.m.YOW - LHR

1 stop11h 20mAir Canada

Deal found 30/7C$ 922

Mon 8/96:00 a.m.BHX - YOW

3 stops23h 22mMultiple Airlines

Sun 21/92:20 p.m.YOW - BHX

2 stops25h 15mMultiple Airlines

Deal found 31/7C$ 929

Mon 17/115:05 p.m.MAN - YOW

1 stop27h 05mVirgin Atlantic

Sun 23/115:20 p.m.YOW - MAN

1 stop17h 45mVirgin Atlantic

Deal found 31/7C$ 937

Mon 20/102:05 p.m.LHR - YOW

Nonstop7h 20mLufthansa

Sat 25/107:50 p.m.YOW - LHR

2 stops31h 20mLufthansa

Deal found 29/7C$ 938

Mon 8/98:30 a.m.GLA - YOW

2 stops20h 52mMultiple Airlines

Sat 20/95:05 p.m.YOW - GLA

2 stops18h 05mMultiple Airlines

Deal found 30/7C$ 953

Sun 5/106:00 a.m.LHR - YOW

2 stops22h 04mSWISS

Wed 15/103:55 p.m.YOW - LHR

2 stops20h 55mSWISS

Deal found 29/7C$ 966

Best flights from United Kingdom to Ottawa
Discover carefully curated flight deals from United Kingdom to Ottawa that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 1 August 2025.

Tue 26/82:00 p.m.LGW - YOW

1 stop32h 06mMultiple Airlines

Mon 8/911:00 a.m.YOW - LGW

2 stops14h 20mMultiple Airlines

Deal found 30/7C$ 859

Mon 8/98:35 a.m.GLA - YOW

1 stop17h 00mAir Transat

Sat 20/92:20 p.m.YOW - GLA

1 stop11h 30mAir Transat

Deal found 30/7C$ 887

Thu 23/106:15 a.m.LHR - YOW

1 stop13h 50mVirgin Atlantic

Tue 25/115:20 p.m.YOW - LHR

1 stop12h 10mVirgin Atlantic

Deal found 30/7C$ 891

Thu 23/106:50 a.m.LHR - YOW

2 stops12h 01mAir Canada

Tue 25/112:50 p.m.YOW - LHR

1 stop11h 20mAir Canada

Deal found 30/7C$ 922

Thu 25/121:30 p.m.LHR - YOW

2 stops14h 38mLufthansa

Wed 7/14:00 p.m.YOW - LHR

1 stop10h 10mLufthansa

Deal found 31/7C$ 965

Tue 14/106:50 a.m.LHR - YOW

2 stops12h 01mBrussels Airlines

Thu 23/106:40 p.m.YOW - LHR

1 stop9h 55mBrussels Airlines

Deal found 31/7C$ 984

Sun 14/96:00 a.m.BHX - YOW

1 stop14h 00mAir France

Sun 21/95:25 p.m.YOW - BHX

1 stop23h 45mAir France

Deal found 31/7C$ 991

Tue 14/106:35 p.m.LGW - YOW

2 stops51h 29mSWISS

Thu 23/103:55 p.m.YOW - LGW

2 stops20h 55mSWISS

Deal found 30/7C$ 992

Wed 27/86:50 a.m.LHR - YOW

2 stops14h 53mUnited Airlines

Thu 18/910:37 a.m.YOW - LHR

2 stops14h 18mUnited Airlines

Deal found 31/7C$ 1,028

Tue 23/96:00 a.m.NCL - YOW

2 stops14h 00mKLM

Tue 30/95:55 a.m.YOW - NCL

2 stops26h 15mKLM

Deal found 31/7C$ 1,088

Thu 23/1012:40 p.m.LGW - YOW

1 stop12h 55mAir Transat

Tue 25/115:50 p.m.YOW - LGW

1 stop10h 55mAir Transat

Deal found 30/7C$ 894

Thu 9/106:00 a.m.LHR - YOW

2 stops23h 22mMultiple Airlines

Tue 21/105:55 a.m.YOW - LHR

2 stops23h 25mMultiple Airlines

Deal found 30/7C$ 905

Direct flights from United Kingdom to Ottawa
Explore direct flight options from United Kingdom to Ottawa based on user searches, and compare prices and availability for your desired travel dates. Data last updated 1 August 2025.

Thu 2/102:05 p.m.LHR - YOW

Nonstop7h 20mAir Canada

Thu 16/106:55 p.m.YOW - LHR

Nonstop6h 35mAir Canada

Deal found 31/7C$ 956

Wed 27/812:40 p.m.LHR - YOW

Nonstop7h 20mLufthansa

Thu 18/96:55 p.m.YOW - LHR

Nonstop6h 35mLufthansa

Deal found 31/7C$ 996

Last-minute flights from United Kingdom to Ottawa
Discover last-minute flight deals from United Kingdom to Ottawa. Data last updated 1 August 2025 and is based on user searches.

Tue 5/87:25 a.m.LHR - YOW

2 stops18h 55mLufthansa

Tue 19/85:55 p.m.YOW - LHR

2 stops17h 45mLufthansa

Deal found 31/7C$ 1,312

Wed 6/84:40 p.m.LHR - YOW

1 stop22h 18mAir Canada

Wed 13/87:00 a.m.YOW - LHR

1 stop9h 00mAir Canada

Deal found 31/7C$ 994

Thu 7/87:45 a.m.LHR - YOW

2 stops13h 58mUnited Airlines

Sat 16/82:48 p.m.YOW - LHR

1 stop10h 57mUnited Airlines

Deal found 30/7C$ 1,031

Thu 7/84:40 p.m.LHR - YOW

1 stop26h 33mMultiple Airlines

Sat 16/88:55 p.m.YOW - LHR

1 stop28h 35mMultiple Airlines

Deal found 30/7C$ 1,037

Thu 7/86:50 p.m.LHR - YOW

2 stops34h 32mDelta

Mon 25/85:55 a.m.YOW - LHR

2 stops22h 20mDelta

Deal found 31/7C$ 1,138

Thu 7/85:55 a.m.MAN - YOW

2 stops14h 10mMultiple Airlines

Sun 31/85:15 p.m.YOW - MAN

1 stop24h 05mMultiple Airlines

Deal found 31/7C$ 1,304

Thu 7/86:15 a.m.LHR - YOW

1 stop13h 50mAir France

Wed 27/85:15 p.m.YOW - LHR

1 stop12h 15mAir France

Deal found 31/7C$ 1,324

Thu 7/85:55 a.m.MAN - YOW

2 stops14h 10mKLM

Sun 31/85:15 p.m.YOW - MAN

2 stops12h 05mKLM

Deal found 31/7C$ 1,438

Fri 8/86:05 a.m.MAN - YOW

2 stops15h 38mUnited Airlines

Wed 13/82:45 p.m.YOW - MAN

2 stops45h 35mUnited Airlines

Deal found 29/7C$ 1,434

Fri 8/810:45 a.m.LGW - YOW

2 stops18h 36mMultiple Airlines

Wed 27/810:55 a.m.YOW - LGW

1 stop14h 25mMultiple Airlines

Deal found 31/7C$ 1,449

Fri 8/85:45 p.m.MAN - YOW

1 stop26h 20mAir France

Wed 13/85:15 p.m.YOW - MAN

1 stop18h 40mAir France

Deal found 29/7C$ 1,477

Sat 9/811:50 a.m.MAN - YOW

2 stops37h 25mAir Canada

Tue 2/98:55 p.m.YOW - MAN

2 stops32h 25mAir Canada

Deal found 31/7C$ 1,488

One-way flights from United Kingdom to Ottawa
Search for one-way flight options from United Kingdom to Ottawa. Find affordable one-way fares based on user searches. Data last updated 1 August 2025.

Mon 15/910:00 p.m.STN - YOW

2 stops31h 22mMultiple Airlines

Deal found 31/7C$ 451

Sat 20/99:40 a.m.LGW - YOW

1 stop19h 42mMultiple Airlines

Deal found 31/7C$ 494

Wed 17/96:15 a.m.LHR - YOW

2 stops23h 07mMultiple Airlines

Deal found 30/7C$ 495

Sat 13/99:40 a.m.LGW - YOW

1 stop12h 41mAir Transat

Deal found 30/7C$ 632

Mon 20/1010:45 a.m.LGW - YOW

2 stops18h 37mWestJet

Deal found 31/7C$ 699

Sat 30/88:35 a.m.GLA - YOW

1 stop20h 46mAir Transat

Deal found 31/7C$ 768

Tue 16/98:40 a.m.LCY - YOW

2 stops13h 41mMultiple Airlines

Deal found 29/7C$ 818

Sun 21/95:55 a.m.MAN - YOW

2 stops29h 50mWestJet

Deal found 31/7C$ 847

Mon 20/109:50 a.m.LHR - YOW

2 stops16h 19mAer Lingus

Deal found 31/7C$ 851

Sun 26/102:50 p.m.LHR - YOW

2 stops37h 52mWestJet

Deal found 30/7C$ 855

Sun 21/91:25 p.m.MAN - YOW

1 stop15h 56mAir Transat

Deal found 31/7C$ 865

Sun 26/1010:40 a.m.LGW - YOW

2 stops27h 02mTAP AIR PORTUGAL

Deal found 30/7C$ 1,151

Cheapflights Fare Finder

Use the filters below to find and compare flights from the United Kingdom to Ottawa that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonOttawa

LGW - YOW

LGWYOW

London Gatwick

Tue 26/8

2:00 p.m.-5:06 p.m.

1 stop32h 06m

Ottawa

Mon 8/9

11:00 a.m.-6:20 a.m.

2 stops14h 20m

C$ 859

GlasgowOttawa

GLA - YOW

GLAYOW

Glasgow Intl

Mon 8/9

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

1 stop17h 00m

Ottawa

Sat 20/9

2:20 p.m.-6:50 a.m.

1 stop11h 30m

C$ 887

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Thu 23/10

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

1 stop13h 50m

Ottawa

Tue 25/11

5:20 p.m.-10:30 a.m.

1 stop12h 10m

C$ 891

LondonOttawa

LGW - YOW

LGWYOW

London Gatwick

Thu 23/10

12:40 p.m.-8:35 p.m.

1 stop12h 55m

Ottawa

Tue 25/11

5:50 p.m.-9:45 a.m.

1 stop10h 55m

C$ 894

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Thu 9/10

6:00 a.m.-12:22 a.m.

2 stops23h 22m

Ottawa

Tue 21/10

5:55 a.m.-10:20 a.m.

2 stops23h 25m

C$ 905

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Thu 23/10

6:50 a.m.-1:51 p.m.

2 stops12h 01m

Ottawa

Tue 25/11

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

1 stop11h 20m

C$ 922

BirminghamOttawa

BHX - YOW

BHXYOW

Birmingham

Mon 8/9

6:00 a.m.-12:22 a.m.

3 stops23h 22m

Ottawa

Sun 21/9

2:20 p.m.-8:35 p.m.

2 stops25h 15m

C$ 929

ManchesterOttawa

MAN - YOW

MANYOW

Manchester

Mon 17/11

5:05 p.m.-3:10 p.m.

1 stop27h 05m

Ottawa

Sun 23/11

5:20 p.m.-4:05 p.m.

1 stop17h 45m

C$ 937

GlasgowOttawa

GLA - YOW

GLAYOW

Glasgow Intl

Mon 8/9

8:30 a.m.-12:22 a.m.

2 stops20h 52m

Ottawa

Sat 20/9

5:05 p.m.-4:10 p.m.

2 stops18h 05m

C$ 953

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Thu 25/12

1:30 p.m.-11:08 p.m.

2 stops14h 38m

Ottawa

Wed 7/1

4:00 p.m.-7:10 a.m.

1 stop10h 10m

C$ 965

Flights are sorted by cheapest round-trip flights first.

Deals found on 31/7

Showing 1-10 of 46 results

...

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?

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.

Reviews of airlines servicing Ottawa

Check out reviews from past customers who have flown with KLM,Air Transat, andAir France from the United Kingdom to Ottawa to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

KLM

7.8

Good

1,383 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

KLM

7.8

Good

1,383 reviews

KLM

7.8

Good

1,383 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Air Transat

7.7

Good

424 reviews

KLM

7.8

Good

1,383 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Air France

7.5

Good

1,465 reviews

KLM

7.8

Good

1,383 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

SWISS

7.5

Good

1,686 reviews

KLM

7.8

Good

1,383 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

United Airlines

7.4

Good

8,900 reviews

KLM

7.8

Good

1,383 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Related info for your journey

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$ 632 is the cheapest one-way deal found within the past few days, from Air Transat. You may also be able to find cheap deals on WestJet and Aer Lingus, with prices starting from C$ 699 and C$ 843, respectively.
What are the most popular routes from United Kingdom to Ottawa?
While some choose either London Gatwick - Ottawa or London City - Ottawa, London Heathrow - Ottawa is the most popular route from United Kingdom to Ottawa.
What are the most reliable airlines from United Kingdom to Ottawa?
Before booking your flight to Ottawa from United Kingdom, check out the most reliable airlines to get you to your destination on time: Air Canada (90%), Aegean Airlines (90%), Austrian Airlines( 90%).
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$ 1,679, our data indicates the cheapest price to be C$ 738. The most popular route (London Heathrow - Ottawa), is priced around C$ 873.
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

Gatineau

Brockville

Smiths Falls

Perth

Prescott

Pembroke

Wakefield

Browse thousands of different options on Cheapflights for your next trip

Top 3 airlines flying from United Kingdom to Ottawa

Airline	Cheapest	Average	Flexibility	On-time
Air France	CheapestC$ 737	AverageC$ 967	FlexibilityNo cancel fee	On-time77%	Search Air France flights
Air Canada	CheapestC$ 812	AverageC$ 1,055	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
Lufthansa	CheapestC$ 855	AverageC$ 1,089	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights

Fly with Cheapflights

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.

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Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

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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.

Cheap flights from the United Kingdom to Ottawa from C$ 451

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 15/9. Fares are subject to change and may not be available on all flights or dates of travel.

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 1 August 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from United Kingdom to Ottawa

Cheapest flights from United Kingdom to OttawaExplore 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 1 August 2025.

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 1 August 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from the United Kingdom to Ottawa that are best for you.

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.

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?

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 1 August 2025.

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 1 August 2025.

Check out reviews from past customers who have flown with KLM,Air Transat, andAir France from the United Kingdom to Ottawa to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

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?

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

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

What are the most reliable airlines from United Kingdom to Ottawa?

What are the cheapest flights from United Kingdom to Ottawa?

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

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

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

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

Travelling to a place near Ottawa?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for United Kingdom to Ottawa

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Top 3 airlines flying from United Kingdom to Ottawa

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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 1 August 2025.