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Cheap flights from Ottawa to London Gatwick Airport from £173

YOW — LGW
22 Sep — 29 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ottawa to Gatwick

Enter your travel dates to find the best prices.

Cheapest flights from Ottawa to Gatwick

Tue 8/919:40 -
Nonstop7h 15m
Fri 25/909:40 -
Nonstop8h 00m
Deal found 19/8£346
Sun 13/919:40 -
Nonstop7h 15m
Tue 22/909:40 -
Nonstop8h 00m
Deal found 19/8£347
Sun 20/919:40 -
Nonstop7h 15m
Sun 27/909:40 -
Nonstop8h 00m
Deal found 21/8£348
Tue 15/919:40 -
Nonstop7h 15m
Tue 22/909:40 -
Nonstop8h 00m
Deal found 18/8£351
Tue 8/919:40 -
Nonstop7h 15m
Tue 22/912:40 -
1 stop12h 20m
Deal found 19/8£355
Sun 20/916:00 -
1 stop13h 45m
Tue 22/909:40 -
Nonstop8h 00m
Deal found 18/8£355
Tue 8/919:40 -
Nonstop7h 15m
Tue 15/909:40 -
Nonstop8h 00m
Deal found 18/8£358

Find flight deals from Ottawa to Gatwick

Round-trip from

£346

One-way from

£173

Popular in

March

Cheapest in

February

Average price

£567

Good round-trip deal

£186 or less
Air Transat
  • Air Transat
  • 8/9-25/9
  • Nonstop
  • 15h 15m total
  • Ottawa to London
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Porter Airlines
  • Porter Airlines
  • 8/9
  • 1 total stop
  • 21h 05m total
  • Ottawa to London
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Highest demand for flights based on searches. 8% potential increase in price (£35 potential increase over avg. return price).
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Cheapest flight prices on average. 5% potential price decrease (£20 potential savings vs. average return price).
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Average for round-trip flights in August 2026
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Price to beat on a round-trip flight from Ottawa to London Gatwick.
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Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

OttawaLondon

YOW Ottawa - LGW London Gatwick

YOWLGW

Ottawa

Thu 1/10

16:00-10:45

1 stop13h 45m

London Gatwick

Mon 12/10

09:40-20:00

1 stop15h 20m

£398

OttawaLondon

YOW Ottawa - LGW London Gatwick

YOWLGW

Ottawa

Sun 20/9

19:40-07:55

Nonstop7h 15m

London Gatwick

Wed 23/9

09:40-20:00

1 stop15h 20m

£411
Fastest return journey

OttawaLondon

YOW Ottawa - LGW London Gatwick

YOWLGW

Ottawa

Fri 20/11

17:10-09:00

1 stop10h 50m

London Gatwick

Fri 27/11

10:00-15:00

1 stop10h 00m

£521

OttawaLondon

YOW Ottawa - LGW London Gatwick

YOWLGW

Ottawa

Thu 5/11

17:10-15:45

1 stop17h 35m

London Gatwick

Sat 21/11

16:45-15:00

1 stop27h 15m

£535

OttawaLondon

YOW Ottawa - LGW London Gatwick

YOWLGW

Ottawa

Tue 29/9

17:25-09:25

1 stop11h 00m

London Gatwick

Sun 1/11

16:45-00:42

2 stops36h 57m

£572

OttawaLondon

YOW Ottawa - LGW London Gatwick

YOWLGW

Ottawa

Fri 2/10

20:55-07:55

1 stop30h 00m

London Gatwick

Fri 9/10

12:40-20:00

1 stop12h 20m

£679

OttawaLondon

YOW Ottawa - LGW London Gatwick

YOWLGW

Ottawa

Wed 11/11

16:10-17:50

2 stops20h 40m

London Gatwick

Mon 23/11

08:35-19:45

2 stops16h 10m

£693

OttawaLondon

YOW Ottawa - LGW London Gatwick

YOWLGW

Ottawa

Wed 11/11

16:10-17:50

2 stops20h 40m

London Gatwick

Sun 22/11

08:40-19:45

2 stops16h 05m

£699

OttawaLondon

YOW Ottawa - LGW London Gatwick

YOWLGW

Ottawa

Mon 2/11

12:45-09:45

1 stop16h 00m

London Gatwick

Mon 16/11

11:40-22:15

1 stop15h 35m

£720

OttawaLondon

YOW Ottawa - LGW London Gatwick

YOWLGW

Ottawa

Wed 16/12

17:10-09:00

1 stop10h 50m

London Gatwick

Mon 4/1

10:00-15:00

1 stop10h 00m

£734

Flights are sorted by cheapest return flights first.

Deals found on 21/8

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

Best time to book a flight from Ottawa to Gatwick

Have a flexible travel schedule? Discover the best time to fly to Gatwick from Ottawa with our price prediction graph.
Estimated return price

Cheapflights Insights

Everything you need to know about your flight from Ottawa to London Gatwick Airport

What is the cheapest time of day to fly from YOW to LGW?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ottawa to London Gatwick Airport as you normally would.

How much does it cost for a return flight from Ottawa to London Gatwick Airport?

Airfare is below average for this route at the moment.

Ottawa to London Gatwick Airport flights typically cost between £420 and £555 in September.
The cheapest return price found within the last 5 days was £346 on Air Transat (8 Sept–25 Sept).

Related info for your journey

  • What airport do you fly from for flights from Ottawa to London Gatwick?

    Most people fly from Ottawa (YOW) if they book a flight from Ottawa to London Gatwick. On average, Ottawa has 0 outbound flights to London Gatwick per day from 0 airlines. Ottawa is conveniently located just 6.6 mi from Ottawa’s city center.

  • How long is the flight from Ottawa to London Gatwick Airport?

    For as low as £411, Air Transat can have you in London Gatwick Airport from Ottawa in 7h 15m. The distance from Ottawa to London Gatwick Airport is about 3340 mi. Both multi-stop and direct flights can be found to your destination and back.

  • What are the cheapest flights from Ottawa to London Gatwick Airport?

    Looking at all options, your cheapest flight can be booked for £181. While the most popular route (Ottawa - London Gatwick) can be booked for £344 on average, our data indicates £382 when flying from Ottawa to London Gatwick Airport.

  • Can I find deals for flights from Ottawa to Gatwick that include hotel bookings?

    Yes. In addition to deals on Ottawa to Gatwick flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Ottawa to Gatwick?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ottawa to Gatwick.

  • Can I find deals for business class flights from Ottawa to Gatwick?

    Yes. Cheapflights offers flight deals from Ottawa to Gatwick by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Travelling to a place near London Gatwick Airport?

Book flights to London Gatwick Airport if you plan to visit one of these locations
Hounslow
Milton Keynes
Luton
Wembley
Gatwick
Slough
Ilford
Hayes
Croydon
Colchester
Eastbourne
Brentford
Southend-on-Sea
Barnet
Enfield
Kingston upon Thames
Southall
Watford
Dover
Romford

Browse thousands of different options on Cheapflights for your next trip

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Deals for Ottawa to Gatwick flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Ottawa to Gatwick.

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Can Cheapflights notify me if prices for flights from Ottawa to Gatwick become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Gatwick from Ottawa today and book when prices fit your budget.

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