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Cheap flights from Ottawa to London Gatwick Airport from C$ 427

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 11/6. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — LGW
16 Apr — 23 Apr1
1 adult

Cheapflights Tip: The best prices from Ottawa to London Gatwick are usually found in May or September, booked 65 days in advance, depart on a Monday or Sunday and return on a Tuesday

Cheap 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 11 April 2025.

Round-trip from

C$ 907

One-way from

C$ 427

Popular in

December

Cheapest in

May

Average price

C$ 1,140
7/5-13/5
  • 7/5-13/5
  • 3 total stops
  • 56h 16m total
  • Ottawa to London
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WestJet
  • WestJet
  • 11/6
  • 2 total stops
  • 22h 30m total
  • Ottawa to London
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Highest demand for flights based on searches. 19% potential increase in price (C$ 407 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease (C$ 102 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from Ottawa to Gatwick

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 11 April 2025.

Wed 7/511:00 a.m.YOW - LGW
1 stop14h 20mMultiple Airlines
Tue 13/57:10 a.m.LGW - YOW
2 stops41h 56mMultiple Airlines
Deal found 10/4C$ 907
Sun 1/64:40 p.m.YOW - LGW
1 stop13h 05mAir Transat
Sun 15/612:40 p.m.LGW - YOW
1 stop13h 21mAir Transat
Deal found 11/4C$ 914
Tue 13/54:40 p.m.YOW - LGW
1 stop13h 05mPorter Airlines
Wed 21/512:40 p.m.LGW - YOW
1 stop13h 21mPorter Airlines
Deal found 10/4C$ 934
Mon 8/93:55 p.m.YOW - LGW
2 stops20h 55mSWISS
Sat 13/96:40 p.m.LGW - YOW
2 stops33h 24mSWISS
Deal found 9/4C$ 1,099
Sun 11/55:55 a.m.YOW - LGW
2 stops22h 30mWestJet
Sat 17/510:45 a.m.LGW - YOW
2 stops18h 37mWestJet
Deal found 10/4C$ 1,168

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 11 April 2025.
Use the filters below to find and compare flights from Ottawa to London Gatwick Airport that are best for you.

Fly from

Ottawa

Fly to

Gatwick

Route

Depart

Return

Price

OttawaLondon

YOW - LGW

YOWLGW

Ottawa

Wed 7/5

11:00 a.m.-6:20 a.m.

1 stop14h 20m

London Gatwick

Tue 13/5

7:10 a.m.-8:06 p.m.

2 stops41h 56m

C$ 907

OttawaLondon

YOW - LGW

YOWLGW

Ottawa

Sun 1/6

4:40 p.m.-10:45 a.m.

1 stop13h 05m

London Gatwick

Sun 15/6

12:40 p.m.-9:01 p.m.

1 stop13h 21m

C$ 914

OttawaLondon

YOW - LGW

YOWLGW

Ottawa

Tue 13/5

4:40 p.m.-10:45 a.m.

1 stop13h 05m

London Gatwick

Wed 21/5

12:40 p.m.-9:01 p.m.

1 stop13h 21m

C$ 934

OttawaLondon

YOW - LGW

YOWLGW

Ottawa

Mon 8/9

3:55 p.m.-5:50 p.m.

2 stops20h 55m

London Gatwick

Wed 17/9

6:35 p.m.-11:04 p.m.

2 stops33h 29m

C$ 1,029

OttawaLondon

YOW - LGW

YOWLGW

Ottawa

Sun 11/5

5:55 a.m.-9:25 a.m.

2 stops22h 30m

London Gatwick

Sat 17/5

10:45 a.m.-12:22 a.m.

2 stops18h 37m

C$ 1,168

OttawaLondon

YOW - LGW

YOWLGW

Ottawa

Wed 11/6

5:55 a.m.-9:25 a.m.

2 stops22h 30m

C$ 427

OttawaLondon

YOW - LGW

YOWLGW

Ottawa

Wed 9/7

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

2 stops22h 00m

C$ 439

OttawaLondon

YOW - LGW

YOWLGW

Ottawa

Tue 13/5

4:40 p.m.-10:45 a.m.

1 stop13h 05m

C$ 614

OttawaLondon

YOW - LGW

YOWLGW

Ottawa

Thu 17/4

2:50 p.m.-10:45 a.m.

1 stop14h 55m

C$ 840

OttawaLondon

YOW - LGW

YOWLGW

Ottawa

Fri 25/4

1:00 p.m.-5:50 p.m.

2 stops23h 50m

C$ 1,105

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/4

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

How far ahead should I book a flight from Ottawa to London Gatwick Airport?

Use this chart to determine the optimal time to book a round-trip flight from Ottawa to Gatwick. Price data was last updated on 4 April 2025.

To ensure you get the cheapest price possible for a flight from Ottawa to London Gatwick Airport, you should look to book at least 65 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Ottawa to London Gatwick Airport?

Currently, January is the cheapest month in which you can book a flight from Ottawa to London Gatwick Airport (average of C$ 511). Flying from Ottawa to London Gatwick Airport in July is currently the most expensive (average of C$ 793). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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 11 April 2025.

One of the essential ways to save on airfare from Ottawa to London Gatwick Airport is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the morning could potentially save you up to 23% on airfare.

What is the cheapest day to fly from Ottawa to London Gatwick Airport?

Use this chart to determine the cheapest time to fly round-trip from Ottawa to Gatwick. Price data was last updated on 16 December 2024.

Travelers seeking maximum savings on their Ottawa to London Gatwick Airport flight should consider departing on Sunday mornings when fares are most often at their lowest. Wednesday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Gatwick by month

Plan your trip to Gatwick by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in London Gatwick Airport ranges from 40.0 - 70.0 mm per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Gatwick Airport when rainfall is around 40.0 mm.

Temperature in Gatwick by month

Plan your trip to Gatwick by taking into account the average temperature totals by month.

If weather is an important factor for your trip to London Gatwick Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

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 11 April 2025.
See what other customers who have flown with Porter Airlines, Air Transat and SWISS from Ottawa to London have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
8.0
Very good
280 reviews
Check prices

Boarding

8.2

Overall

8.0

Comfort

8.0

Food

7.6

Entertainment

6.9

Crew

8.7

Reviews

1 / 17
10.0
Excellent

Anonymous,Dec 2024

YYZ - LAS

Everything about the rescheduled (cost me $180) flight great. ***Being denied boarding because I was few minutes under 1.5 hours was not. Stuck at the Kiosk for about 15 minutes before it directed me to the Porter counter was strange. Do not know why checking in online at home was not successful? I think something was up...what can you do?
Porter Airlines
8.0
Very good
280 reviews
Porter Airlines
8.0
Very good
280 reviews
Check prices

Boarding

8.2

Overall

8.0

Comfort

8.0

Food

7.6

Entertainment

6.9

Crew

8.7

Reviews

1 / 17
10.0
Excellent

Anonymous,Dec 2024

YYZ - LAS

Everything about the rescheduled (cost me $180) flight great. ***Being denied boarding because I was few minutes under 1.5 hours was not. Stuck at the Kiosk for about 15 minutes before it directed me to the Porter counter was strange. Do not know why checking in online at home was not successful? I think something was up...what can you do?
Air Transat
7.8
Good
385 reviews
Porter Airlines
8.0
Very good
280 reviews
Check prices

Boarding

8.2

Overall

8.0

Comfort

8.0

Food

7.6

Entertainment

6.9

Crew

8.7

Reviews

1 / 17
10.0
Excellent

Anonymous,Dec 2024

YYZ - LAS

Everything about the rescheduled (cost me $180) flight great. ***Being denied boarding because I was few minutes under 1.5 hours was not. Stuck at the Kiosk for about 15 minutes before it directed me to the Porter counter was strange. Do not know why checking in online at home was not successful? I think something was up...what can you do?
SWISS
7.5
Good
1,575 reviews
Porter Airlines
8.0
Very good
280 reviews
Check prices

Boarding

8.2

Overall

8.0

Comfort

8.0

Food

7.6

Entertainment

6.9

Crew

8.7

Reviews

1 / 17
10.0
Excellent

Anonymous,Dec 2024

YYZ - LAS

Everything about the rescheduled (cost me $180) flight great. ***Being denied boarding because I was few minutes under 1.5 hours was not. Stuck at the Kiosk for about 15 minutes before it directed me to the Porter counter was strange. Do not know why checking in online at home was not successful? I think something was up...what can you do?
WestJet
7.2
Good
2,802 reviews
Porter Airlines
8.0
Very good
280 reviews
Check prices

Boarding

8.2

Overall

8.0

Comfort

8.0

Food

7.6

Entertainment

6.9

Crew

8.7

Reviews

1 / 17
10.0
Excellent

Anonymous,Dec 2024

YYZ - LAS

Everything about the rescheduled (cost me $180) flight great. ***Being denied boarding because I was few minutes under 1.5 hours was not. Stuck at the Kiosk for about 15 minutes before it directed me to the Porter counter was strange. Do not know why checking in online at home was not successful? I think something was up...what can you do?

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.

  • What are the cheapest airlines flying from Ottawa to London Gatwick Airport round-trip?

    Flying on Porter Airlines is currently your cheapest option to London Gatwick Airport, with prices starting at C$ 934. Additional round-trip tickets that might be worth considering are offered by Air Transat and SWISS, with the lowest prices starting at C$ 936 and C$ 1,029, respectively. Porter Airlines is 22% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Ottawa to London Gatwick Airport one-way?

    One-way options have recently been found by users for as low as C$ 427 on WestJet. Other airlines that offer cheap prices include Porter Airlines from C$ 614 and Air Transat from C$ 840 one-way.

  • 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.

  • What is the cheapest month to book a flight from Ottawa to London Gatwick Airport?

    Currently, January is the cheapest month in which you can book a flight from Ottawa to London Gatwick Airport (average of C$ 511). Flying from Ottawa to London Gatwick Airport in July is currently the most expensive (average of C$ 793). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Ottawa?

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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 11 April 2025.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapestC$ 918AverageC$ 1,086FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air TransatCheapestC$ 929AverageC$ 1,103FlexibilityNo cancel feeOn-time50%
Search Air Transat flights

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