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Cheap flights from London, ON to Ottawa from C$ 372

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 25/11. Fares are subject to change and may not be available on all flights or dates of travel.
YXU — YOW
29 Aug — 5 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from London to Ottawa

Enter your travel dates to find the best prices.

Cheapest flights from London to Ottawa
Explore the most affordable flight options available from London to Ottawa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 July 2026.

Fri 28/82:40 p.m.
YXU
-
YOW
2 stops9h 40m
WestJet
Mon 31/812:25 p.m.
YOW
-
YXU
1 stop25h 25m
WestJet
Deal found 27/7C$ 411
Tue 15/96:10 a.m.
YXU
-
YOW
1 stop11h 05m
WestJet
Thu 17/98:15 p.m.
YOW
-
YXU
1 stop9h 05m
WestJet
Deal found 25/7C$ 494
Wed 23/96:10 a.m.
YXU
-
YOW
1 stop9h 10m
WestJet
Wed 23/98:15 p.m.
YOW
-
YXU
1 stop9h 05m
WestJet
Deal found 26/7C$ 508
Thu 17/95:55 p.m.
YXU
-
YOW
1 stop11h 40m
WestJet
Mon 21/98:15 p.m.
YOW
-
YXU
1 stop9h 05m
WestJet
Deal found 30/7C$ 510
Tue 1/92:40 p.m.
YXU
-
YOW
1 stop20h 55m
WestJet
Wed 9/98:15 p.m.
YOW
-
YXU
1 stop9h 05m
WestJet
Deal found 27/7C$ 521

Find flight deals from London to Ottawa

Discover tips and strategies to find the most affordable flight options for your journey from London (YXU) to Ottawa (YOW). 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 30 July 2026.

Round-trip from

C$ 411

One-way from

C$ 372

Popular in

December

Cheapest in

February
WestJet
  • WestJet
  • 28/8-31/8
  • 3 total stops
  • 35h 05m total
  • London to Ottawa
Search Deals
WestJet
  • WestJet
  • 25/11
  • 1 total stop
  • 19h 50m total
  • London to Ottawa
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (C$ 220 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (C$ 79 potential savings vs. average RT price).
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from London to Ottawa 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 30 July 2026.
Use the filters below to find and compare flights from London to Ottawa that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LondonOttawa

YXU - YOW

YXUYOW

London

Fri 28/8

2:40 p.m.-12:20 a.m.

2 stops9h 40m

Ottawa

Mon 31/8

12:25 p.m.-1:50 p.m.

1 stop25h 25m

C$ 411
Quickest round-trip

LondonOttawa

YXU - YOW

YXUYOW

London

Tue 15/9

6:10 a.m.-5:15 p.m.

1 stop11h 05m

Ottawa

Thu 17/9

8:15 p.m.-5:20 a.m.

1 stop9h 05m

C$ 494

LondonOttawa

YXU - YOW

YXUYOW

London

Tue 1/9

2:40 p.m.-11:35 a.m.

1 stop20h 55m

Ottawa

Wed 9/9

8:15 p.m.-5:20 a.m.

1 stop9h 05m

C$ 521

LondonOttawa

YXU - YOW

YXUYOW

London

Thu 17/9

6:10 a.m.-12:25 a.m.

2 stops18h 15m

Ottawa

Mon 21/9

8:15 p.m.-5:20 a.m.

1 stop9h 05m

C$ 527
Cheapest one-way

LondonOttawa

YXU - YOW

YXUYOW

London

Mon 17/8

6:10 a.m.-5:15 p.m.

1 stop11h 05m

C$ 375

LondonOttawa

YXU - YOW

YXUYOW

London

Mon 23/11

8:00 p.m.-10:08 p.m.

2 stops26h 08m

C$ 418

LondonOttawa

YXU - YOW

YXUYOW

London

Sun 9/8

2:40 p.m.-5:35 a.m.

2 stops14h 55m

C$ 432

LondonOttawa

YXU - YOW

YXUYOW

London

Wed 9/9

6:10 a.m.-12:25 a.m.

2 stops18h 15m

C$ 432
Quickest one-way

LondonOttawa

YXU - YOW

YXUYOW

London

Wed 26/8

10:05 a.m.-3:10 p.m.

1 stop5h 05m

C$ 462

LondonOttawa

YXU - YOW

YXUYOW

London

Wed 9/9

6:10 a.m.-12:20 a.m.

3 stops18h 10m

C$ 470

Flights are sorted by cheapest round-trip flights first.

Deals found on 27/7

Showing 1-10 of 13 resultsSorted by cheapest first
1
2

Best time to book a flight from London to Ottawa

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

What’s the top layover airport for flights from London, Ontario to Ottawa?

Share of one-stop round-trip flights from London, Ontario to Ottawa chosen by Cheapflights users in the past 12 months, using the same layover each way.

Toronto (YYZ) – chosen by Cheapflights users on 97% of one-stop itineraries from London, Ontario to Ottawa on Cheapflights.

What’s the cheapest layover airport for flights from London, Ontario to Ottawa?

Average round-trip fare for 1-stop flights from London, Ontario to Ottawa, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Calgary (YYC) is the most affordable 1-stop option, with an average round-trip price of C$ 900.

What’s the fastest layover option from London, Ontario to Ottawa?

Shortest average travel time for 1-stop one-way flights from London, Ontario to Ottawa, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Toronto (YYZ) have the shortest average one-way travel time for 1-stop routes: 3h 35m.

Which airport typically offers the quickest layover for flights from London, Ontario to Ottawa?

Average layover duration for 1-stop one-way flights from London, Ontario to Ottawa, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Toronto (YYZ) offer the fastest connection on this route, with an average layover time of 1h 26m.

Reviews of airlines servicing Ottawa

Get insights into the airlines that provide service to Ottawa. 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 Ottawa. Reviews last updated 30 July 2026.
Get a feel of what it's like to fly with Air Canada from London to Ottawa by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air Canada
7.1
Good
11,407 reviews
Check prices

Overall

7.1

Comfort

7.1

Entertainment

6.8

Food

6.3

Crew

7.8

Boarding

7.3

Reviews

1 / 20
8.0
Excellent

John,Apr 2026

YVR - YOW

Crew was very attentive and meals were good. My wife required a wheel chair due to an accident on vacation. The service in Toronto was poor and Ottawa no better. Southeast Asia could teach them lots. Flight originated in Manila on ANA which was cancelled due to a mechanical issue. We were put up overnight in the Savoy Hotel with dinner and breakfast. The airline staff and hotel staff were fantastic.
Air Canada
7.1
Good
11,407 reviews
Air Canada
7.1
Good
11,407 reviews
Check prices

Overall

7.1

Comfort

7.1

Entertainment

6.8

Food

6.3

Crew

7.8

Boarding

7.3

Reviews

1 / 20
8.0
Excellent

John,Apr 2026

YVR - YOW

Crew was very attentive and meals were good. My wife required a wheel chair due to an accident on vacation. The service in Toronto was poor and Ottawa no better. Southeast Asia could teach them lots. Flight originated in Manila on ANA which was cancelled due to a mechanical issue. We were put up overnight in the Savoy Hotel with dinner and breakfast. The airline staff and hotel staff were fantastic.

Related info for your journey

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

  • How long is the flight from London, Ontario to Ottawa?

    WestJet can get you from London, Ontario to Ottawa in just under 9h 40m. Your travel time can differ by up to . The distance between London, Ontario and Ottawa is about 505 km.

  • What is the cheapest airline to fly from London, Ontario to Ottawa round-trip?

    Air Canada, at C$ 551, was found to be the cheapest airline from London, Ontario to Ottawa.. Air Canada is priced at 37% lower than the current average price of a flight leaving 3 months from now.

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

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

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

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

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

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

Book flights to Ottawa if you plan to visit one of these locations
Gatineau
Brockville
Prescott
Wakefield
Pembroke
Smiths Falls

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Alternative routes for London to Ottawa

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

Discover the top airline that operate flights from London to Ottawa. 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 30 July 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 551AverageC$ 747FlexibilityNo 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 London to Ottawa?

Deals for London to Ottawa 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.

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

Cheapflights helps you find that perfect flight to Ottawa from London by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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

Certainly. Search results for flights to Ottawa from London shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Not ready to book yet? You can track prices for flights from London to Ottawa on Cheapflights with our Price Alert feature and get notified when better prices are available.

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