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Cheap flights from Ottawa to London, ON from C$ 305

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 20/3. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — YXU
25 Feb — 4 Mar1
1 adult

Cheap flight deals from Ottawa to London

Discover tips and strategies to find the most affordable flight options for your journey from Ottawa (YOW) to London (YXU). 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 20 February 2025.

Round-trip from

C$ 518

One-way from

C$ 305

Popular in

November

Cheapest in

September

Average price

C$ 879
WestJet
  • WestJet
  • 27/5-4/6
  • 2 total stops
  • 20h 44m total
  • Ottawa to London
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WestJet
  • WestJet
  • 20/3
  • 2 total stops
  • 21h 38m total
  • Ottawa to London
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (C$ 43 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 24 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2025
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Find flight deals from Ottawa to London

Cheapest flights from Ottawa to London
Explore the most affordable flight options available from Ottawa to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 20 February 2025.

Tue 27/57:15 p.m.YOW - YXU
1 stop9h 59mWestJet
Wed 4/68:00 p.m.YXU - YOW
1 stop10h 45mWestJet
Deal found 18/2C$ 518
Sun 6/44:20 p.m.YOW - YXU
1 stop19h 00mMultiple Airlines
Sun 13/48:00 p.m.YXU - YOW
1 stop28h 44mMultiple Airlines
Deal found 20/2C$ 592
Wed 19/36:00 a.m.YOW - YXU
1 stop3h 15mAir Canada
Wed 26/35:15 a.m.YXU - YOW
1 stop5h 22mAir Canada
Deal found 19/2C$ 872

Find flights from Ottawa to London within your budget

Customize your flight search to find flights from Ottawa to London 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 20 February 2025.

Fly from

Ottawa

Fly to

London

Route

Depart

Return

Price

OttawaLondon

YOW - YXU

YOWYXU

Ottawa

Tue 27/5

7:15 p.m.-5:14 a.m.

1 stop9h 59m

London

Wed 4/6

8:00 p.m.-6:45 a.m.

1 stop10h 45m

C$ 518

OttawaLondon

YOW - YXU

YOWYXU

Ottawa

Sun 6/4

4:20 p.m.-11:20 a.m.

1 stop19h 00m

London

Sun 13/4

8:00 p.m.-12:44 a.m.

1 stop28h 44m

C$ 592

OttawaLondon

YOW - YXU

YOWYXU

Ottawa

Wed 19/3

6:00 a.m.-9:15 a.m.

1 stop3h 15m

London

Wed 26/3

5:15 a.m.-10:37 a.m.

1 stop5h 22m

C$ 872

OttawaLondon

YOW - YXU

YOWYXU

Ottawa

Thu 20/3

9:35 p.m.-7:13 p.m.

2 stops21h 38m

C$ 305

OttawaLondon

YOW - YXU

YOWYXU

Ottawa

Thu 6/3

2:50 p.m.-7:13 p.m.

3 stops28h 23m

C$ 523

OttawaLondon

YOW - YXU

YOWYXU

Ottawa

Thu 6/3

11:35 a.m.-2:41 p.m.

1 stop3h 06m

C$ 526

Flights are sorted by cheapest round-trip flights first.

Deals found on 19/2

Best time to book a flight from Ottawa to London

Have a flexible travel schedule? Discover the best time to fly to London 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.

Travel insights for flights from Ottawa to London

Get recent, data-driven insights about flights from Ottawa to London including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Ottawa to London, Ontario?

Currently, October is the cheapest month in which you can book a flight from Ottawa to London, Ontario (average of C$ 243). Flying from Ottawa to London, Ontario in April is currently the most expensive (average of C$ 496). 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 YXU?

Find hourly flight availability from Ottawa to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 20 February 2025.

When flying from Ottawa to London, Ontario, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 36% versus a flight at noon.

Rainfall in London by month

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

In terms of precipitation, rainfall in London, Ontario ranges from 70.0 - 100.0 mm per month. January is typically the wettest month, when rainfall can reach 100.0 mm. March is typically the driest time to visit London, Ontario when rainfall is around 70.0 mm.

Temperature in London by month

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

If weather is an important factor for your trip to London, Ontario, 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 20.0 C. Travellers hoping to avoid the cold should look outside of February, when temperatures are typically at their lowest (around -6.0 C).

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. 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 London. Reviews last updated 20 February 2025.
WestJet
7.2
Good
2,801 reviews
Check prices

Entertainment

6.1

Boarding

7.4

Overall

7.2

Comfort

7.1

Food

6.2

Crew

7.9

Reviews

1 / 20

6.0
Good

Deb,Jan 2025

YYZ - YYC

Boarding went smoothly, you didn't accept debit card for food on flight

WestJet
7.2
Good
2,801 reviews
WestJet
7.2
Good
2,801 reviews
Check prices

Entertainment

6.1

Boarding

7.4

Overall

7.2

Comfort

7.1

Food

6.2

Crew

7.9

Reviews

1 / 20

6.0
Good

Deb,Jan 2025

YYZ - YYC

Boarding went smoothly, you didn't accept debit card for food on flight

Air Canada
7.0
Good
8,748 reviews
WestJet
7.2
Good
2,801 reviews
Check prices

Entertainment

6.1

Boarding

7.4

Overall

7.2

Comfort

7.1

Food

6.2

Crew

7.9

Reviews

1 / 20

6.0
Good

Deb,Jan 2025

YYZ - YYC

Boarding went smoothly, you didn't accept debit card for food on flight

Related info for your journey

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

  • What are the cheapest airlines flying from Ottawa to London, Ontario round-trip?

    WestJet, at C$ 518, was found to be the cheapest airline from Ottawa to London, Ontario. An alternate airline flying to your destination would be Air Canada. WestJet is 43% cheaper than the average price of flights available within the next 90 days to this destination.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Ottawa to London 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, Ontario?

    Currently, October is the cheapest month in which you can book a flight from Ottawa to London, Ontario (average of C$ 243). Flying from Ottawa to London, Ontario in April is currently the most expensive (average of C$ 496). 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?

Book flights to Ottawa if you plan to visit one of these locations
Grand Bend
Port Stanley

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Alternative routes for Ottawa to London

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Ottawa to London

Discover the top 2 airlines that operate flights from Ottawa to London. 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 20 February 2025.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapestC$ 384AverageC$ 538FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Air CanadaCheapestC$ 579AverageC$ 947FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

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

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Ottawa to London. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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

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 London.

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

Need flexible booking options for your flight to London from Ottawa? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Yes, Cheapflights offers price alerts on Ottawa to London flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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