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Flights to Ottawa

£264 Cheap flights to Ottawa

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight to Ottawa departing on 4/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
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.
Multiple Airlines Logo
13:25 - 17:16
LHR
-
YOW
32h 51m2 stops
Multiple Airlines Logo
21:55 - 09:20
YOW
-
LHR
6h 25mdirect
£483Multiple Airlines
Wed, 25 Feb - Sun, 1 Mar
Multiple Airlines Logo
13:25 - 11:21
LHR
-
YOW
26h 56m2 stops
Multiple Airlines Logo
21:55 - 09:20
YOW
-
LHR
6h 25mdirect
£484Multiple Airlines
Thu, 26 Feb - Wed, 4 Mar
Air Transat Logo
11:40 - 00:43
LGW
-
YOW
18h 03m1 stop
Air Transat Logo
18:55 - 09:45
YOW
-
LGW
9h 50m1 stop
£485Air Transat
Tue, 17 Feb - Fri, 20 Feb
Virgin Atlantic Logo
09:00 - 15:05
LHR
-
YOW
11h 05m1 stop
Virgin Atlantic Logo
17:15 - 08:00
YOW
-
LHR
9h 45m1 stop
£485Virgin Atlantic
Fri, 10 Apr - Sun, 19 Apr
Air France Logo
14:45 - 00:39
LHR
-
YOW
14h 54m2 stops
Air France Logo
17:20 - 18:20
YOW
-
LHR
20h 00m1 stop
£486Air France
Wed, 25 Feb - Mon, 2 Mar
Air Transat Logo
12:40 - 08:25
LGW
-
YOW
24h 45m1 stop
Air Transat Logo
15:05 - 10:45
YOW
-
LGW
14h 40m1 stop
£488Air Transat
Fri, 10 Apr - Sun, 19 Apr
Air Canada Logo
13:25 - 09:46
LHR
-
YOW
25h 21m2 stops
Air Canada Logo
21:55 - 09:20
YOW
-
LHR
6h 25mdirect
£497Air Canada
Wed, 25 Feb - Sun, 1 Mar
Air Canada Logo
09:00 - 17:43
LHR
-
YOW
13h 43m1 stop
Air Canada Logo
10:30 - 07:10
YOW
-
LHR
15h 40m2 stops
£498Air Canada
Wed, 25 Feb - Wed, 4 Mar
Air France Logo
06:00 - 15:10
MAN
-
YOW
14h 10m1 stop
Air France Logo
17:20 - 18:40
YOW
-
MAN
20h 20m1 stop
£532Air France
Thu, 29 Jan - Thu, 5 Feb
Lufthansa Logo
09:50 - 18:38
LCY
-
YOW
13h 48m2 stops
Lufthansa Logo
14:05 - 17:35
YOW
-
LCY
22h 30m2 stops
£538Lufthansa
Tue, 13 Jan - Tue, 20 Jan

momondo Fare Finder

 
Locate flights to Ottawa that fit your budget, with regularly updated fares and availability. In the last 7 days, momondo users made a total of 279,928 searches and data was last updated on 18 December 2025.
Use the filters below to find and compare flights to Ottawa that are best for you.

Fly from

Route

Depart

Return

Price

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Wed 25/2

13:25-17:16

2 stops32h 51m

Ottawa

Sun 1/3

21:55-09:20

Nonstop6h 25m

£483

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Thu 26/2

13:25-11:21

2 stops26h 56m

Ottawa

Wed 4/3

21:55-09:20

Nonstop6h 25m

£484

LondonOttawa

LGW - YOW

LGWYOW

London Gatwick

Tue 17/2

11:40-00:43

1 stop18h 03m

Ottawa

Fri 20/2

18:55-09:45

1 stop9h 50m

£485

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Fri 10/4

09:00-15:05

1 stop11h 05m

Ottawa

Sun 19/4

17:15-08:00

1 stop9h 45m

£485

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Wed 25/2

14:45-00:39

2 stops14h 54m

Ottawa

Mon 2/3

17:20-18:20

1 stop20h 00m

£486

LondonOttawa

LGW - YOW

LGWYOW

London Gatwick

Fri 10/4

12:40-08:25

1 stop24h 45m

Ottawa

Sun 19/4

15:05-10:45

1 stop14h 40m

£488

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Wed 25/2

13:25-09:46

2 stops25h 21m

Ottawa

Sun 1/3

21:55-09:20

Nonstop6h 25m

£497

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Wed 25/2

09:00-17:43

1 stop13h 43m

Ottawa

Wed 4/3

10:30-07:10

2 stops15h 40m

£498

ManchesterOttawa

MAN - YOW

MANYOW

Manchester

Thu 29/1

06:00-15:10

1 stop14h 10m

Ottawa

Thu 5/2

17:20-18:40

1 stop20h 20m

£532

LondonOttawa

LCY - YOW

LCYYOW

London City

Tue 13/1

09:50-18:38

2 stops13h 48m

Ottawa

Tue 20/1

14:05-17:35

2 stops22h 30m

£538

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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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, 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 £476. If you aren’t able to travel during the month of January, then book flights to Ottawa from United Kingdom during March instead. Flights to Ottawa in March, while not as cheap as those in January, still average around £490.

What is the absolute cheapest flight to Ottawa?

Users booking trips to Ottawa from Toronto found flights 92% 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.

See prices from:

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 Friday when prices can be found for as low as £540. 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 Sunday because tickets tend to average around £641. 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 £480 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 £574 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 £554 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 £376 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 AIRPORTMarch15% cheaperFlying from London Heathrow Airport to Ottawa costs on average just £476 in March
MOST EXPENSIVE MONTH TO FLY TO OTTAWA FROM LONDON HEATHROW AIRPORTAugust30% more expensiveIt costs about £722 for flights to Ottawa from London Heathrow Airport in August
MOST POPULAR MONTH TO FLY TO OTTAWA FROM LONDON HEATHROW AIRPORTJuly306% more users visitedMore 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

£264

Best Round-Trip Price

£483

Fastest flight time

13h 50m

Popular in

July
The best one-way flight price to Ottawa from United Kingdom in the last 72 hours is £264 (London Gatwick to Ottawa).
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The best round-trip flight price to Ottawa from United Kingdom in the last 72 hours is £483 (London Heathrow to Ottawa).
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The fastest flight to Ottawa from United Kingdom takes 13h 50m (London Heathrow to Ottawa).
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July has the highest demand for flights to Ottawa, with a 16% 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 £426 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 £1,134 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 8 as of December 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.

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

Popular routes according to searches in the past day on momondo
London to Ottawa Flightsfrom £486
Manchester to Ottawa Flightsfrom £731
Birmingham to Ottawa Flightsfrom £1,196
Newcastle upon Tyne to Ottawa Flightsfrom £828
Leeds/Bradford to Ottawa Flightsfrom £1,118
Glasgow to Ottawa Flightsfrom £779