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Flights to Ottawa

£153 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 11/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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
18:55 - 00:39
STN
-
YOW
33h 44m
3 stops
Multiple Airlines Logo
05:40 - 21:20
YOW
-
STN
35h 40m
2 stops
£398Multiple Airlines
Fri, 13 Mar - Fri, 20 Mar
Multiple Airlines Logo
11:55 - 00:39
LGW
-
YOW
17h 44m
2 stops
Multiple Airlines Logo
05:40 - 10:55
YOW
-
LGW
24h 15m
2 stops
£398Multiple Airlines
Mon, 23 Feb - Mon, 2 Mar
Lufthansa Logo
06:30 - 19:46
LHR
-
YOW
18h 16m
2 stops
Lufthansa Logo
16:00 - 21:35
YOW
-
LHR
24h 35m
2 stops
£398Lufthansa
Fri, 5 Jun - Fri, 12 Jun
Multiple Airlines Logo
16:50 - 00:39
LHR
-
YOW
12h 49m
1 stop
Multiple Airlines Logo
17:20 - 10:30
YOW
-
LHR
12h 10m
1 stop
£399Multiple Airlines
Mon, 23 Feb - Mon, 2 Mar
Air Canada Logo
12:00 - 14:30
LHR
-
YOW
7h 30mdirect
Air Canada Logo
14:05 - 06:30
YOW
-
LHR
11h 25m
1 stop
£401Air Canada
Fri, 6 Feb - Mon, 16 Feb
Air France Logo
17:00 - 15:00
LGW
-
YOW
27h 00m
1 stop
Air France Logo
17:10 - 09:25
YOW
-
LGW
11h 15m
1 stop
£403Air France
Tue, 23 Jun - Fri, 16 Oct
Air France Logo
17:00 - 15:00
LGW
-
YOW
27h 00m
1 stop
Air France Logo
17:10 - 09:25
YOW
-
LGW
11h 15m
1 stop
£404Air France
Thu, 28 May - Tue, 2 Jun
Air Transat Logo
11:40 - 18:33
LGW
-
YOW
11h 53m
1 stop
Air Transat Logo
18:55 - 09:45
YOW
-
LGW
9h 50m
1 stop
£411Air Transat
Sun, 22 Feb - Sun, 1 Mar
Air Transat Logo
11:40 - 08:25
LGW
-
YOW
25h 45m
1 stop
Air Transat Logo
10:00 - 09:45
YOW
-
LGW
18h 45m
1 stop
£415Air Transat
Thu, 12 Feb - Fri, 20 Feb
Lufthansa Logo
09:15 - 22:10
LCY
-
YOW
17h 55m
2 stops
Lufthansa Logo
14:25 - 08:40
YOW
-
LCY
13h 15m
2 stops
£588Lufthansa
Wed, 24 Jun - Thu, 15 Oct

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 28 January 2026.
Use the filters below to find and compare flights to Ottawa that are best for you.

Fly from

Route

Depart

Return

Price

LondonOttawa

STN - YOW

STNYOW

London Stansted

Fri 13/3

18:55-00:39

3 stops33h 44m

Ottawa

Fri 20/3

05:40-21:20

2 stops35h 40m

£398

LondonOttawa

LGW - YOW

LGWYOW

London Gatwick

Mon 23/2

11:55-00:39

2 stops17h 44m

Ottawa

Mon 2/3

05:40-10:55

2 stops24h 15m

£398

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Fri 5/6

06:30-19:46

2 stops18h 16m

Ottawa

Fri 12/6

16:00-21:35

2 stops24h 35m

£398

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Mon 23/2

16:50-00:39

1 stop12h 49m

Ottawa

Mon 2/3

17:20-10:30

1 stop12h 10m

£399

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Fri 6/2

12:00-14:30

Nonstop7h 30m

Ottawa

Mon 16/2

14:05-06:30

1 stop11h 25m

£401

LondonOttawa

LGW - YOW

LGWYOW

London Gatwick

Tue 23/6

17:00-15:00

1 stop27h 00m

Ottawa

Fri 16/10

17:10-09:25

1 stop11h 15m

£403

LondonOttawa

LGW - YOW

LGWYOW

London Gatwick

Thu 28/5

17:00-15:00

1 stop27h 00m

Ottawa

Tue 2/6

17:10-09:25

1 stop11h 15m

£404

LondonOttawa

LGW - YOW

LGWYOW

London Gatwick

Sun 22/2

11:40-18:33

1 stop11h 53m

Ottawa

Sun 1/3

18:55-09:45

1 stop9h 50m

£411

LondonOttawa

LGW - YOW

LGWYOW

London Gatwick

Thu 12/2

11:40-08:25

1 stop25h 45m

Ottawa

Fri 20/2

10:00-09:45

1 stop18h 45m

£415

LondonOttawa

LCY - YOW

LCYYOW

London City

Wed 24/6

09:15-22:10

2 stops17h 55m

Ottawa

Thu 15/10

14:25-08:40

2 stops13h 15m

£588

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, February 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 £480. If you aren’t able to travel during the month of February, then book flights to Ottawa from United Kingdom during May instead. Flights to Ottawa in May, while not as cheap as those in February, still average around £483.

What is the absolute cheapest flight to Ottawa?

Users booking trips to Ottawa from Halifax found flights 74% 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 £507. 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 £587. 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 at midday is the least expensive time of day to depart. momondo users have found prices as low as £546 when looking at flights departing at midday. In the morning is when there is more demand to fly to Ottawa, so prices are often more expensive at around £553 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 £542 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 £369 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 AIRPORTApril13% cheaperFlying from London Heathrow Airport to Ottawa costs on average just £474 in April
MOST EXPENSIVE MONTH TO FLY TO OTTAWA FROM LONDON HEATHROW AIRPORTAugust29% more expensiveIt costs about £702 for flights to Ottawa from London Heathrow Airport in August
MOST POPULAR MONTH TO FLY TO OTTAWA FROM LONDON HEATHROW AIRPORTJuly339% 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

£153

Best Round-Trip Price

£398

Fastest flight time

22h 49m

Popular in

August
The best one-way flight price to Ottawa from United Kingdom in the last 72 hours is £153 (London Gatwick to Ottawa).
Search Deals
The best round-trip flight price to Ottawa from United Kingdom in the last 72 hours is £398 (London Stansted to Ottawa).
Search Deals
The fastest flight to Ottawa from United Kingdom takes 22h 49m (London City to Ottawa).
Search Deals
August has the highest demand for flights to Ottawa, with a 16% 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 88 days out, which is when prices tend to be around £531. 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 £424 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 £484 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 January 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

Popular routes according to searches in the past day on momondo
London to Ottawa Flightsfrom £465
Manchester to Ottawa Flightsfrom £658
Birmingham to Ottawa Flightsfrom £765
Glasgow to Ottawa Flightsfrom £897
Newcastle upon Tyne to Ottawa Flightsfrom £894
Leeds/Bradford to Ottawa Flightsfrom £1,216