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Flights to Ottawa

£204 Cheap flights to Ottawa

1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from the United Kingdom to Ottawa

Cheap return flights

Enter your travel dates to find the best prices.
Air Canada Logo
16:20 - 19:27LHR  London Heathrow-YOW Ottawa
32h 07m1 stop Washington, D.C. Dulles Intl
Air Canada Logo
18:10 - 21:00YOW  Ottawa-LHR London Heathrow
21h 50m2 stops Toronto Pearson Intl Halifax Intl
£499Air Canada
Thu, 10 Dec - Sat, 12 Dec
Air Canada Logo
09:00 - 11:37LHR  London Heathrow-YOW Ottawa
31h 37m2 stops Zurich Montreal Pierre Elliott Trudeau Intl
Air Canada Logo
09:55 - 21:00YOW  Ottawa-LHR London Heathrow
30h 05m2 stops Toronto Island Halifax Intl
£502Air Canada
Thu, 19 Nov - Sat, 21 Nov
Lufthansa Logo
11:10 - 14:05LHR  London Heathrow-YOW Ottawa
7h 55mdirect
Lufthansa Logo
18:10 - 06:30YOW  Ottawa-LHR London Heathrow
31h 20m1 stop Toronto Pearson Intl
£541Lufthansa
Sat, 28 Nov - Sat, 28 Nov
United Airlines Logo
06:35 - 19:27LHR  London Heathrow-YOW Ottawa
17h 52m2 stops Munich Franz Josef Strauss Washington, D.C. Dulles Intl
United Airlines Logo
06:00 - 06:40YOW  Ottawa-LHR London Heathrow
19h 40m2 stops Newark Washington, D.C. Dulles Intl
£546United Airlines
Sat, 14 Nov - Wed, 18 Nov
Air Transat Logo
11:40 - 08:07LGW  London Gatwick-YOW Ottawa
25h 27m1 stop Toronto Pearson Intl
Air Transat Logo
10:15 - 09:45YOW  Ottawa-LGW London Gatwick
18h 30m1 stop Toronto Pearson Intl
£547Air Transat
Thu, 19 Nov - Sat, 21 Nov
United Airlines Logo
07:30 - 21:56LHR  London Heathrow-YOW Ottawa
19h 26m2 stops Frankfurt am Main Newark
United Airlines Logo
06:00 - 10:50YOW  Ottawa-LHR London Heathrow
23h 50m2 stops Newark Washington, D.C. Dulles Intl
£547United Airlines
Sat, 28 Nov - Sat, 5 Dec
Air Transat Logo
11:40 - 00:49LGW  London Gatwick-YOW Ottawa
18h 09m1 stop Toronto Pearson Intl
Air Transat Logo
13:45 - 09:45YOW  Ottawa-LGW London Gatwick
15h 00m1 stop Toronto Pearson Intl
£548Air Transat
Wed, 3 Feb - Tue, 9 Feb
Lufthansa Logo
11:10 - 14:05LHR  London Heathrow-YOW Ottawa
7h 55mdirect
Lufthansa Logo
18:10 - 06:30YOW  Ottawa-LHR London Heathrow
31h 20m1 stop Toronto Pearson Intl
£595Lufthansa
Sat, 28 Nov - Sat, 5 Dec
KLM Logo
10:00 - 15:00LGW  London Gatwick-YOW Ottawa
10h 00m1 stop Paris Charles de Gaulle
KLM Logo
17:10 - 09:00YOW  Ottawa-LGW London Gatwick
10h 50m1 stop Paris Charles de Gaulle
£603KLM
Sun, 29 Nov - Sun, 6 Dec
KLM Logo
09:35 - 23:40NCL  Newcastle upon Tyne-YOW Ottawa
19h 05m2 stops Amsterdam Schiphol Toronto Pearson Intl
KLM Logo
05:30 - 09:00YOW  Ottawa-NCL Newcastle upon Tyne
22h 30m2 stops Toronto Pearson Intl Amsterdam Schiphol
£702KLM
Tue, 16 Feb - Tue, 23 Feb

momondo Fare Finder

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

Fly from

Route

Depart

Return

Price

Cheapest return flight

LondonOttawa

LHR London Heathrow - YOW Ottawa

LHRYOW

London Heathrow

Thu 10/12

16:20-19:27

1 stop32h 07m

Ottawa

Sat 12/12

18:10-21:00

2 stops21h 50m

£499

LondonOttawa

LHR London Heathrow - YOW Ottawa

LHRYOW

London Heathrow

Thu 19/11

09:00-11:37

2 stops31h 37m

Ottawa

Sat 21/11

09:55-21:00

2 stops30h 05m

£502

LondonOttawa

LHR London Heathrow - YOW Ottawa

LHRYOW

London Heathrow

Sat 28/11

11:10-14:05

Nonstop7h 55m

Ottawa

Sat 28/11

18:10-06:30

1 stop31h 20m

£541

LondonOttawa

LHR London Heathrow - YOW Ottawa

LHRYOW

London Heathrow

Sat 14/11

06:35-19:27

2 stops17h 52m

Ottawa

Wed 18/11

06:00-06:40

2 stops19h 40m

£546

LondonOttawa

LGW London Gatwick - YOW Ottawa

LGWYOW

London Gatwick

Thu 19/11

11:40-08:07

1 stop25h 27m

Ottawa

Sat 21/11

10:15-09:45

1 stop18h 30m

£547

LondonOttawa

LHR London Heathrow - YOW Ottawa

LHRYOW

London Heathrow

Sat 28/11

07:30-21:56

2 stops19h 26m

Ottawa

Sat 5/12

06:00-10:50

2 stops23h 50m

£547

LondonOttawa

LGW London Gatwick - YOW Ottawa

LGWYOW

London Gatwick

Wed 3/2

11:40-00:49

1 stop18h 09m

Ottawa

Tue 9/2

13:45-09:45

1 stop15h 00m

£548

LondonOttawa

LHR London Heathrow - YOW Ottawa

LHRYOW

London Heathrow

Sat 28/11

11:10-14:05

Nonstop7h 55m

Ottawa

Sat 5/12

18:10-06:30

1 stop31h 20m

£595
Fastest return journey

LondonOttawa

LGW London Gatwick - YOW Ottawa

LGWYOW

London Gatwick

Sun 29/11

10:00-15:00

1 stop10h 00m

Ottawa

Sun 6/12

17:10-09:00

1 stop10h 50m

£603

Newcastle upon TyneOttawa

NCL Newcastle upon Tyne - YOW Ottawa

NCLYOW

Newcastle upon Tyne

Tue 16/2

09:35-23:40

2 stops19h 05m

Ottawa

Tue 23/2

05:30-09:00

2 stops22h 30m

£702

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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Ottawa flights insights and trends

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

What is the cheapest month to fly to Ottawa?

In general, June 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 £417. If you aren’t able to travel during the month of June, then book flights to Ottawa from United Kingdom during September instead. Flights to Ottawa in September, while not as cheap as those in June, still average around £447.

What is the absolute cheapest flight to Ottawa?

Users booking trips to Ottawa from Newark found flights 84% 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 Sunday when prices can be found for as low as £511. 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 Wednesday because tickets tend to average around £614. 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 morning is the least expensive time of day to depart. momondo users have found prices as low as £542 when looking at flights departing in the morning. At midday is when there is more demand to fly to Ottawa, so prices are often more expensive at around £608 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 £555 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 £456 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 AIRPORTMay31% cheaperFlying from London Heathrow Airport to Ottawa costs on average just £386 in May
MOST EXPENSIVE MONTH TO FLY TO OTTAWA FROM LONDON HEATHROW AIRPORTDecember22% more expensiveIt costs about £681 for flights to Ottawa from London Heathrow Airport in December
MOST POPULAR MONTH TO FLY TO OTTAWA FROM LONDON HEATHROW AIRPORTAugust401% more users visitedMore momondo users searched in flights to Ottawa from London Heathrow Airport in August than any other month

Cheap Ottawa flight deals and tips

Summary info about Ottawa flight prices, duration and airlines

Best One-Way Price

£204

Best Round-Trip Price

£499

Fastest flight time

14h 20m

Popular in

December
The best one-way flight price to Ottawa from United Kingdom in the last 5 days is £204 (London Gatwick to Ottawa).
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The best return flight price to Ottawa from United Kingdom in the last 5 days is £499 (London Heathrow to Ottawa).
Search Deals
The fastest flight to Ottawa from United Kingdom takes 14h 20m (Edinburgh Turnhouse to Ottawa).
Search Deals
December has the highest demand for flights to Ottawa, with a 9% price increase on average.
Search Deals

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 54 days out, which is when prices tend to be around £538. 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 £361 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 £527 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 7 as of November 2026.

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.

Travelling to a place near Ottawa?

Book flights to Ottawa if you plan to visit one of these locations
Smiths Falls

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.

An easier way to manage your Ottawa trip

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Find better results for your trip to Ottawa

Popular Flights to Ottawa

London to Ottawa Flightsfrom £726
Manchester to Ottawa Flightsfrom £1,033
Birmingham to Ottawa Flightsfrom £881
Newcastle upon Tyne to Ottawa Flightsfrom £942
Glasgow to Ottawa Flightsfrom £926
Leeds/Bradford to Ottawa Flightsfrom £1,368