Which airlines fly to Ottawa?

Air Canada, Air Transat, Lufthansa and British Airways are the most popular airlines that fly from United Kingdom to Ottawa on a routine basis, according to our data. You should be able to find flights to Ottawa with these airlines and other airlines flying from United Kingdom.

KLM Flights to Ottawa

KLM will jet to Ottawa around 6 times in an average week. Where you fly from will dictate what kind of deals you can get for KLM, but prices as low as £347 have been found from Bristol to Ottawa. KLM has scored 7.8/10 in momondo user reviews.

Air France Flights to Ottawa

Air France (7.4/10, 1,469 reviews) is also a popular choice for flights to Ottawa, with deals from as low as £358 from Birmingham, round-trip. With 4 Air France flights to Ottawa on average each week, prices can vary significantly by origin and availability.

How long does it take to fly to Ottawa?

Flight times from United Kingdom to Ottawa vary, but if you’re flying out of London Heathrow and flying into Montreal Pierre Elliott Trudeau Intl (one of the most popular routes), then the duration is 7h 10m on average. Another popular route from United Kingdom to Ottawa is flying from Manchester to Montreal Pierre Elliott Trudeau Intl, which will take roughly 11h 35m. Keep in mind that layovers or delays could extend your travel time.

£232 Cheap Flights to Ottawa in 2025/26

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Find the cheapest flights from the United Kingdom to Ottawa

Round-trip

One-way

Last minute

Direct

Cheap return flights

17:50 - 00:22LHR-YOW

11h 32m1 stop

17:15 - 21:25YOW-LHR

23h 10m1 stop

£430

Find Deal

Thu, 9 Oct - Mon, 20 Oct

17:50 - 00:22LHR-YOW

11h 32m1 stop

05:55 - 08:05YOW-LHR

21h 10m2 stops

£435KLM

Find Deal

Sat, 4 Oct - Sat, 25 Oct

09:00 - 22:18LHR-YOW

18h 18m2 stops

12:05 - 07:10YOW-LHR

15h 05m2 stops

£455Air Canada

Find Deal

Thu, 5 Mar - Sun, 8 Mar

14:05 - 01:34LHR-YOW

16h 29m2 stops

20:55 - 21:35YOW-LHR

19h 40m2 stops

£459Air Canada

Find Deal

Sat, 4 Oct - Sat, 25 Oct

06:05 - 16:10NCL-YOW

14h 05m1 stop

17:20 - 22:25YOW-NCL

24h 05m1 stop

£476Air France

Find Deal

Thu, 30 Oct - Thu, 6 Nov

12:40 - 15:00LHR-YOW

7h 20mdirect

19:50 - 21:35YOW-LHR

44h 45m2 stops

£478Lufthansa

Find Deal

Wed, 22 Oct - Sat, 25 Oct

11:40 - 00:41LGW-YOW

17h 01m1 stop

18:55 - 09:45YOW-LGW

9h 50m1 stop

£481Air Transat

Find Deal

Thu, 30 Oct - Thu, 6 Nov

12:40 - 15:00LHR-YOW

7h 20mdirect

17:55 - 06:35YOW-LHR

31h 40m1 stop

£488Lufthansa

Find Deal

Sat, 11 Oct - Sat, 18 Oct

06:00 - 15:10BHX-YOW

14h 10m1 stop

17:20 - 09:30YOW-BHX

11h 10m1 stop

£494Air France

Find Deal

Thu, 20 Nov - Tue, 2 Dec

11:40 - 08:25LGW-YOW

25h 45m1 stop

06:45 - 09:45YOW-LGW

22h 00m1 stop

£499Air Transat

Find Deal

Fri, 26 Dec - Sat, 17 Jan

Fly from

Route

Depart

Return

Price

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Thu 9/10

17:50-00:22

1 stop11h 32m

Ottawa

Mon 20/10

17:15-21:25

1 stop23h 10m

£430

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Sat 4/10

17:50-00:22

1 stop11h 32m

Ottawa

Sat 25/10

05:55-08:05

2 stops21h 10m

£435

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Thu 5/3

09:00-22:18

2 stops18h 18m

Ottawa

Sun 8/3

12:05-07:10

2 stops15h 05m

£455

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Sat 4/10

14:05-01:34

2 stops16h 29m

Ottawa

Sat 25/10

20:55-21:35

2 stops19h 40m

£459

Newcastle upon TyneOttawa

NCL - YOW

NCLYOW

Newcastle upon Tyne

Thu 30/10

06:05-16:10

1 stop14h 05m

Ottawa

Thu 6/11

17:20-22:25

1 stop24h 05m

£476

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Wed 22/10

12:40-15:00

Nonstop7h 20m

Ottawa

Sat 25/10

19:50-21:35

2 stops44h 45m

£478

LondonOttawa

LGW - YOW

LGWYOW

London Gatwick

Thu 30/10

11:40-00:41

1 stop17h 01m

Ottawa

Thu 6/11

18:55-09:45

1 stop9h 50m

£481

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Sat 11/10

12:40-15:00

Nonstop7h 20m

Ottawa

Sat 18/10

17:55-06:35

1 stop31h 40m

£488

BirminghamOttawa

BHX - YOW

BHXYOW

Birmingham

Thu 20/11

06:00-15:10

1 stop14h 10m

Ottawa

Tue 2/12

17:20-09:30

1 stop11h 10m

£494

LondonOttawa

LGW - YOW

LGWYOW

London Gatwick

Fri 26/12

11:40-08:25

1 stop25h 45m

Ottawa

Sat 17/1

06:45-09:45

1 stop22h 00m

£499

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

Ottawa flights insights and trends

Explore insights for your Ottawa flight to craft the best travel plan

Prices

Other information

What is the cheapest month to fly to Ottawa?

In general, January is the cheapest month to fly from United Kingdom to Ottawa. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £463. If you aren’t able to travel during the month of January, then book flights to Ottawa from United Kingdom during February instead. Flights to Ottawa in February, while not as cheap as those in January, still average around £470.

What is the absolute cheapest flight to Ottawa?

Users booking trips to Ottawa from New York found flights 88% cheaper than the average price of flights to Ottawa. To find the cheapest price to Ottawa from your area, use momondo’s Airport-to-Airport Pricing Tool.

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What is the cheapest day to depart on your flight to Ottawa?

The cheapest day to depart on your flight to Ottawa is on a Monday when prices can be found for as low as £543. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around £604. These prices are subject to change though, so be sure to set up a Price Alert for flights to Ottawa.

What is the cheapest time of day to depart on your flight to Ottawa?

Flying to Ottawa from United Kingdom in the evening is the least expensive time of day to depart. momondo users have found prices as low as £473 when looking at flights departing in the evening. In the morning is when there is more demand to fly to Ottawa, so prices are often more expensive at around £582 per ticket.

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

You are more likely to see cheaper flights to Ottawa from United Kingdom when booking weeks ahead of your departure date. In general, you can expect to find flights to Ottawa for around £547 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ottawa from United Kingdom for as low as £383 on momondo.

Cheapest flights to Ottawa

Find the cheapest flights to Ottawa from your nearest city or airport

Find flights from London Heathrow Airport to Ottawa

CHEAPEST MONTH TO FLY TO OTTAWA FROM LONDON HEATHROW AIRPORT	March	18% cheaper	Flying from London Heathrow Airport to Ottawa costs on average just £450 in March
MOST EXPENSIVE MONTH TO FLY TO OTTAWA FROM LONDON HEATHROW AIRPORT	August	32% more expensive	It costs about £723 for flights to Ottawa from London Heathrow Airport in August
MOST POPULAR MONTH TO FLY TO OTTAWA FROM LONDON HEATHROW AIRPORT	July	293% more users visited	More momondo users searched in flights to Ottawa from London Heathrow Airport in July than any other month

Cheap Ottawa flight deals and tips

Summary info about Ottawa flight prices, duration and airlines

Best One-Way Price	£232
Best Round-Trip Price	£430
Fastest flight time	11h 10m
Popular in	July

The best one-way flight price to Ottawa from United Kingdom in the last 72 hours is £232 (London Heathrow to Ottawa).

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The best round-trip flight price to Ottawa from United Kingdom in the last 72 hours is £430 (London Heathrow to Ottawa).

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The fastest flight to Ottawa from United Kingdom takes 11h 10m (London Heathrow to Ottawa).

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July has the highest demand for flights to Ottawa, with a 15% price increase on average.

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Frequently asked questions about flying to Ottawa

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

The best time to book a flight to Ottawa from United Kingdom is 90 days out, which is when prices tend to be around £541. Keep in mind that you might be able to find cheaper flights to Ottawa at any time. In fact, our users found flights for as low as £435 in the past 72 hours.

Is there an alternative airport near Ottawa?

Finding an alternative and possibly cheaper destination airport near Ottawa is possible. If you are planning a flight to Ottawa, consider booking flights to Ottawa Airport (7 mi from Ottawa city centre), Mont Tremblant Intl Airport (82 mi from Ottawa city centre) or Kingston Airport (93 mi from Ottawa city centre).

Is there a cheaper alternative to flying into Ottawa?

You can find deals at Ottawa Airport for £881 on average, but that price can change based on your departure airport. To save money, try momondo’s Airport-to-Airport Pricing Tool.

When did momondo last update prices for flights to Ottawa Airport?

Prices for flights to Ottawa Airport are refreshed on a daily basis.

How many operators does momondo search for flights to Ottawa Airport?

The number of operators available for flights to Ottawa Airport is 9 as of September 2025.

How old do you have to be to fly to Ottawa Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel to Ottawa Airport.

What documentation or ID do you need to fly to Ottawa Airport?

The necessary travel and health documents for your Ottawa Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

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Why use momondo?

Why should I use momondo to find a flight deal to Ottawa?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Ottawa.

Can I find flights to Ottawa with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Ottawa with this policy.

How can momondo help me find flights to Ottawa?

momondo helps you find the best flight to Ottawa by providing filters to narrow your choice of flights to those matching your criteria. You can select fights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight to Ottawa right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Ottawa, momondo offers a useful price alert feature which will track prices for flights to Ottawa and alert you when they change.