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Cheap flights from Ottawa to London Gatwick Airport from C$ 326

YOW — LGW
24 Sep — 1 Oct1
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

Sun 20/97:40 p.m. -
Nonstop7h 15m
Sun 27/99:40 a.m. -
Nonstop8h 00m
Deal found 21/8C$ 657
Thu 1/107:00 a.m. -
1 stop19h 55m
Sat 17/109:40 a.m. -
1 stop19h 45m
Deal found 20/8C$ 676
Sat 3/107:00 a.m. -
1 stop19h 55m
Sat 10/1012:40 p.m. -
1 stop12h 20m
Deal found 23/8C$ 679
Tue 15/97:40 p.m. -
Nonstop7h 15m
Tue 22/99:40 a.m. -
Nonstop8h 00m
Deal found 22/8C$ 680
Sun 27/97:40 p.m. -
Nonstop7h 15m
Sat 3/109:40 a.m. -
1 stop15h 20m
Deal found 21/8C$ 682

Find flight deals from Ottawa to Gatwick

Round-trip from

C$ 657

One-way from

C$ 326

Popular in

March

Cheapest in

February

Average price

C$ 1,070

Good round-trip deal

C$ 689 or less

Good one-way deal

C$ 376 or less
Air Transat
  • Air Transat
  • 20/9-27/9
  • 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. 7% potential increase in price (C$ 123 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease (C$ 69 potential savings vs. average RT 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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Price to beat on a one-way 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 round-trip

OttawaLondon

YOW Ottawa - LGW London Gatwick

YOWLGW

Ottawa

Wed 16/9

8:55 p.m.-7:55 a.m.

1 stop30h 00m

London Gatwick

Fri 25/9

9:40 a.m.-12:40 p.m.

Nonstop8h 00m

C$ 780

OttawaLondon

YOW Ottawa - LGW London Gatwick

YOWLGW

Ottawa

Sun 20/9

7:40 p.m.-7:55 a.m.

Nonstop7h 15m

London Gatwick

Wed 23/9

9:40 a.m.-12:25 a.m.

1 stop19h 45m

C$ 781

OttawaLondon

YOW Ottawa - LGW London Gatwick

YOWLGW

Ottawa

Sat 12/9

7:00 a.m.-10:45 a.m.

1 stop22h 45m

London Gatwick

Sat 19/9

12:40 p.m.-12:25 a.m.

1 stop16h 45m

C$ 828

OttawaLondon

YOW Ottawa - LGW London Gatwick

YOWLGW

Ottawa

Thu 8/10

4:00 p.m.-10:45 a.m.

1 stop13h 45m

London Gatwick

Thu 15/10

12:40 p.m.-12:25 a.m.

1 stop16h 45m

C$ 907

OttawaLondon

YOW Ottawa - LGW London Gatwick

YOWLGW

Ottawa

Fri 18/9

8:55 p.m.-7:55 a.m.

1 stop30h 00m

London Gatwick

Wed 30/9

11:35 a.m.-12:20 a.m.

2 stops17h 45m

C$ 926

OttawaLondon

YOW Ottawa - LGW London Gatwick

YOWLGW

Ottawa

Fri 16/10

7:40 p.m.-7:55 a.m.

Nonstop7h 15m

London Gatwick

Wed 28/10

11:40 a.m.-10:15 p.m.

1 stop14h 35m

C$ 987

OttawaLondon

YOW Ottawa - LGW London Gatwick

YOWLGW

Ottawa

Tue 27/10

6:10 p.m.-3:45 p.m.

1 stop17h 35m

London Gatwick

Mon 2/11

4:45 p.m.-3:00 p.m.

1 stop27h 15m

C$ 1,009
Quickest round-trip

OttawaLondon

YOW Ottawa - LGW London Gatwick

YOWLGW

Ottawa

Fri 6/11

5:10 p.m.-9:00 a.m.

1 stop10h 50m

London Gatwick

Sun 6/12

10:00 a.m.-3:00 p.m.

1 stop10h 00m

C$ 1,102

OttawaLondon

YOW Ottawa - LGW London Gatwick

YOWLGW

Ottawa

Mon 2/11

12:45 p.m.-9:45 a.m.

1 stop16h 00m

London Gatwick

Mon 16/11

11:40 a.m.-10:15 p.m.

1 stop15h 35m

C$ 1,358

OttawaLondon

YOW Ottawa - LGW London Gatwick

YOWLGW

Ottawa

Sat 14/11

12:45 p.m.-9:45 a.m.

1 stop16h 00m

London Gatwick

Sat 6/2

11:40 a.m.-10:15 p.m.

1 stop15h 35m

C$ 1,397

Flights are sorted by cheapest round-trip flights first.

Deals found on 21/8

Showing 1-10 of 21 resultsSorted by cheapest first
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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 round-trip 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?

When flying from Ottawa to London Gatwick Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost to fly round-trip 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 C$ 793 and C$ 1,047 in September.
The cheapest round-trip price found within the last 5 days was C$ 657 on Air Transat (20 Sep-27 Sep).

Reviews of airlines servicing Gatwick

Read through reviews of airlines operating flights from Ottawa to London Gatwick Airport, such as Air Transat. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Air Transat
7.8
Good
574 reviews
Check prices

Crew

8.5

Boarding

8.0

Comfort

7.3

Food

6.8

Overall

7.8

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Paul,Jul 2026

YUL - LGW

Had to bus to the plane which made priority boarding at the back of the bus
Air Transat
7.8
Good
574 reviews
Air Transat
7.8
Good
574 reviews
Check prices

Crew

8.5

Boarding

8.0

Comfort

7.3

Food

6.8

Overall

7.8

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Paul,Jul 2026

YUL - LGW

Had to bus to the plane which made priority boarding at the back of the bus

Related info for your journey

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

    If you book a flight to London Gatwick from Ottawa, you will be flying from Ottawa, which is the city’s only airport. Ottawa (YOW) is located 10.6 km from the centre of Ottawa. There are 0 flights from Ottawa to London Gatwick per day from 1 airline.

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

    A quick flight from Ottawa to London Gatwick Airport can take about 7h 15m. Air Transat provides one of the quickest options available for as low as C$ 781. Ottawa and London Gatwick Airport are separated by a distance of 5375 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What is the cheapest airline to fly from Ottawa to London Gatwick Airport round-trip?

    Flying on Air Transat is currently your cheapest option to London Gatwick Airport, with prices starting at C$ 676. Air Transat is 34% cheaper than the average price of flights available within the next 90 days to this destination.

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

    Looking for the cheapest flight from Ottawa to London Gatwick Airport? While on average our users pay C$ 604, our data indicates the cheapest price to be C$ 353. The most popular route (Ottawa - London Gatwick), is priced around C$ 639.

  • 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 vacation 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
Gatwick
Romford
Twickenham
Ilford
Bromley
Sutton
Luton
Slough
Marlow
Cobham
Hounslow
Watford
High Wycombe

Browse thousands of different options on Cheapflights for your next trip

Top airline flying from Ottawa to Gatwick

AirlineCheapestAverageFlexibilityOn-time
Air TransatCheapestC$ 676AverageC$ 803FlexibilityNo cancel feeOn-time50%
Search Air Transat flights

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When you search for this flight from Ottawa to Gatwick, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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