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Cheap flights from Ottawa to London Gatwick Airport from C$ 355

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 21/9. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — LGW
31 Aug — 7 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
Explore the most affordable flight options available from Ottawa to Gatwick. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 August 2026.

Sun 13/97:40 p.m.
YOW
-
LGW
Nonstop7h 15m
Air Transat
Sun 20/911:35 a.m.
LGW
-
YOW
1 stop11h 00m
Air Transat
Deal found 30/7C$ 648
Fri 11/98:55 p.m.
YOW
-
LGW
1 stop30h 00m
Air Transat
Fri 18/99:40 a.m.
LGW
-
YOW
Nonstop8h 00m
Air Transat
Deal found 27/7C$ 660
Sun 13/97:40 p.m.
YOW
-
LGW
Nonstop7h 15m
Air Transat
Tue 22/99:40 a.m.
LGW
-
YOW
Nonstop8h 00m
Air Transat
Deal found 29/7C$ 669
Thu 10/94:00 p.m.
YOW
-
LGW
1 stop10h 55m
Air Transat
Sun 20/911:35 a.m.
LGW
-
YOW
1 stop11h 00m
Air Transat
Deal found 28/7C$ 684
Sun 13/97:40 p.m.
YOW
-
LGW
Nonstop7h 15m
Air Transat
Fri 18/99:40 a.m.
LGW
-
YOW
Nonstop8h 00m
Air Transat
Deal found 28/7C$ 688

Find flight deals from Ottawa to Gatwick

Discover tips and strategies to find the most affordable flight options for your journey from Ottawa (YOW) to Gatwick (LGW). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 1 August 2026.

Round-trip from

C$ 648

One-way from

C$ 355

Popular in

March

Cheapest in

February

Average price

C$ 1,101

Good round-trip deal

C$ 686 or less

Good one-way deal

C$ 463 or less
Air Transat
  • Air Transat
  • 13/9-20/9
  • 1 total stop
  • 18h 15m total
  • Ottawa to London
Search Deals
Porter Airlines
  • Porter Airlines
  • 21/9
  • 1 total stop
  • 13h 45m total
  • Ottawa to London
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (C$ 74 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (C$ 62 potential savings vs. average RT price).
Search Deals
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.
Search Deals
Price to beat on a one-way flight from Ottawa to London Gatwick.
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Ottawa to Gatwick that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 1 August 2026.
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 - LGW

YOWLGW

Ottawa

Wed 9/9

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

1 stop30h 00m

London Gatwick

Sat 19/9

9:40 a.m.-8:05 a.m.

1 stop27h 25m

C$ 763

OttawaLondon

YOW - LGW

YOWLGW

Ottawa

Fri 25/9

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

Nonstop7h 15m

London Gatwick

Mon 28/9

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

1 stop19h 45m

C$ 795

OttawaLondon

YOW - LGW

YOWLGW

Ottawa

Thu 22/10

4:00 p.m.-7:55 a.m.

1 stop10h 55m

London Gatwick

Tue 3/11

11:40 a.m.-12:43 a.m.

1 stop18h 03m

C$ 844

OttawaLondon

YOW - LGW

YOWLGW

Ottawa

Sat 19/9

8:40 a.m.-10:45 a.m.

1 stop21h 05m

London Gatwick

Wed 23/9

9:40 a.m.-8:00 p.m.

1 stop15h 20m

C$ 864
Quickest round-trip

OttawaLondon

YOW - LGW

YOWLGW

Ottawa

Fri 11/9

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

Nonstop7h 15m

London Gatwick

Fri 18/9

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

Nonstop8h 00m

C$ 899

OttawaLondon

YOW - LGW

YOWLGW

Ottawa

Mon 12/10

5:10 p.m.-9:40 a.m.

1 stop11h 30m

London Gatwick

Mon 19/10

5:00 p.m.-12:20 a.m.

2 stops36h 20m

C$ 1,005

OttawaLondon

YOW - LGW

YOWLGW

Ottawa

Tue 11/8

5:25 p.m.-9:25 a.m.

1 stop11h 00m

London Gatwick

Sun 16/8

5:00 p.m.-3:00 p.m.

1 stop27h 00m

C$ 1,095

OttawaLondon

YOW - LGW

YOWLGW

Ottawa

Tue 8/12

10:20 a.m.-9:45 a.m.

1 stop18h 25m

London Gatwick

Wed 30/12

11:40 a.m.-12:43 a.m.

1 stop18h 03m

C$ 1,171

OttawaLondon

YOW - LGW

YOWLGW

Ottawa

Tue 15/9

8:40 a.m.-10:45 a.m.

1 stop21h 05m

London Gatwick

Tue 22/9

12:40 p.m.-8:00 p.m.

1 stop12h 20m

C$ 1,251

OttawaLondon

YOW - LGW

YOWLGW

Ottawa

Sun 30/8

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

Nonstop7h 15m

London Gatwick

Sun 6/9

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

Nonstop8h 00m

C$ 1,286

Flights are sorted by cheapest round-trip flights first.

Deals found on 27/7

Showing 1-10 of 22 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
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

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?

Find hourly flight availability from Ottawa to Gatwick. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 1 August 2026.

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$ 970 and C$ 1,237 in September.
The cheapest round-trip price found within the last 5 days was C$ 648 on Air Transat (13 Sep-20 Sep).

Reviews of airlines servicing Gatwick

Get insights into the airlines that provide service to Gatwick. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Gatwick. Reviews last updated 1 August 2026.
Read through reviews of airlines operating flights from Ottawa to London Gatwick Airport, such as Porter Airlines and Air Transat. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
8.0
Very good
449 reviews
Check prices

Comfort

8.0

Overall

8.0

Boarding

8.2

Crew

8.6

Entertainment

6.9

Food

7.5

Reviews

1 / 20
6.0
Good

Shannon,Jul 2026

YQT - YOW

Seats need to be a bit bigger & I'm not impressed that you have to pay to change seats
Porter Airlines
8.0
Very good
449 reviews
Porter Airlines
8.0
Very good
449 reviews
Check prices

Comfort

8.0

Overall

8.0

Boarding

8.2

Crew

8.6

Entertainment

6.9

Food

7.5

Reviews

1 / 20
6.0
Good

Shannon,Jul 2026

YQT - YOW

Seats need to be a bit bigger & I'm not impressed that you have to pay to change seats
Air Transat
7.8
Good
568 reviews
Porter Airlines
8.0
Very good
449 reviews
Check prices

Comfort

8.0

Overall

8.0

Boarding

8.2

Crew

8.6

Entertainment

6.9

Food

7.5

Reviews

1 / 20
6.0
Good

Shannon,Jul 2026

YQT - YOW

Seats need to be a bit bigger & I'm not impressed that you have to pay to change seats

Related info for your journey

Find useful and relevant information for your journey from Ottawa to Gatwick. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • 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 2 different airlines.

  • 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$ 795. 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 are the cheapest airlines flying 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$ 685. Another option worth looking into is Porter Airlines, starting at C$ 765 round trip. Air Transat is 35% 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$ 616, our data indicates the cheapest price to be C$ 279. The most popular route (Ottawa - London Gatwick), is priced around C$ 670.

  • 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

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Top 2 airlines flying from Ottawa to Gatwick

Discover the top 2 airlines that operate flights from Ottawa to Gatwick. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 1 August 2026.
AirlineCheapestAverageFlexibilityOn-time
Air TransatCheapestC$ 685AverageC$ 832FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
Porter AirlinesCheapestC$ 765AverageC$ 1,110FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Ottawa to Gatwick?

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.

Why should you use Cheapflights to find cheap flight tickets from Ottawa to Gatwick?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Ottawa to Gatwick for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Ottawa to Gatwick with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Ottawa to Gatwick flexibly with Cheapflights today.

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

Yes! Start tracking prices for Ottawa to Gatwick flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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