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Cheap flights from London, ON to Ottawa from C$ 306

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 7/12. Fares are subject to change and may not be available on all flights or dates of travel.
YXU — YOW
26 Nov — 3 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap 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 27 October 2025.

Round-trip from

C$ 519

One-way from

C$ 306

Popular in

April

Cheapest in

September

Average price

C$ 896
WestJet
  • WestJet
  • 21/11-25/11
  • 2 total stops
  • 53h 57m total
  • London to Ottawa
Search Deals
Air Canada
  • Air Canada
  • 7/12
  • 1 total stop
  • 3h 38m total
  • London to Ottawa
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (C$ 45 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 35 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
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Find 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 27 October 2025.

Fri 21/118:10 p.m.YXU - YOW
1 stop28h 30mWestJet
Tue 25/115:45 p.m.YOW - YXU
1 stop25h 27mWestJet
Deal found 27/10C$ 519
Fri 21/118:10 p.m.YXU - YOW
1 stop18h 20mMultiple Airlines
Tue 25/115:40 a.m.YOW - YXU
2 stops13h 32mMultiple Airlines
Deal found 27/10C$ 577
Wed 10/125:10 a.m.YXU - YOW
1 stop3h 08mAir Canada
Wed 10/126:05 p.m.YOW - YXU
1 stop3h 16mAir Canada
Deal found 25/10C$ 623
Fri 12/127:30 a.m.YXU - YOW
1 stop9h 23mWestJet
Tue 16/126:00 a.m.YOW - YXU
1 stop24h 34mWestJet
Deal found 26/10C$ 624
Wed 10/125:10 a.m.YXU - YOW
1 stop4h 13mAir Canada
Wed 17/125:00 a.m.YOW - YXU
1 stop3h 46mAir Canada
Deal found 25/10C$ 665
Sat 22/115:40 p.m.YXU - YOW
1 stop5h 28mAir Canada
Sat 29/1112:05 p.m.YOW - YXU
1 stop5h 00mAir Canada
Deal found 25/10C$ 676
Mon 10/118:10 p.m.YXU - YOW
1 stop18h 20mMultiple Airlines
Mon 17/116:55 p.m.YOW - YXU
1 stop24h 17mMultiple Airlines
Deal found 26/10C$ 834

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 27 October 2025.
Use the filters below to find and compare flights from London to Ottawa that are best for you.

Fly from

London

Fly to

Ottawa

Route

Depart

Return

Price

LondonOttawa

YXU - YOW

YXUYOW

London

Thu 15/1

8:10 p.m.-2:27 p.m.

1 stop18h 17m

Ottawa

Wed 21/1

5:45 p.m.-6:34 a.m.

1 stop12h 49m

C$ 570

LondonOttawa

YXU - YOW

YXUYOW

London

Fri 21/11

8:10 p.m.-2:30 p.m.

1 stop18h 20m

Ottawa

Tue 25/11

5:40 a.m.-7:12 p.m.

2 stops13h 32m

C$ 577

LondonOttawa

YXU - YOW

YXUYOW

London

Wed 10/12

5:10 a.m.-8:18 a.m.

1 stop3h 08m

Ottawa

Wed 10/12

6:05 p.m.-9:21 p.m.

1 stop3h 16m

C$ 623

LondonOttawa

YXU - YOW

YXUYOW

London

Fri 12/12

7:30 a.m.-4:53 p.m.

1 stop9h 23m

Ottawa

Tue 16/12

6:00 a.m.-6:34 a.m.

1 stop24h 34m

C$ 624

LondonOttawa

YXU - YOW

YXUYOW

London

Wed 10/12

5:10 a.m.-9:23 a.m.

1 stop4h 13m

Ottawa

Wed 17/12

5:00 a.m.-8:46 a.m.

1 stop3h 46m

C$ 665

LondonOttawa

YXU - YOW

YXUYOW

London

Sun 23/11

9:25 a.m.-1:18 p.m.

1 stop3h 53m

Ottawa

Sun 30/11

12:05 p.m.-5:05 p.m.

1 stop5h 00m

C$ 676

LondonOttawa

YXU - YOW

YXUYOW

London

Sat 22/11

5:40 p.m.-11:08 p.m.

1 stop5h 28m

Ottawa

Sat 29/11

12:05 p.m.-5:05 p.m.

1 stop5h 00m

C$ 676

LondonOttawa

YXU - YOW

YXUYOW

London

Sun 7/12

5:40 p.m.-9:18 p.m.

1 stop3h 38m

C$ 306

LondonOttawa

YXU - YOW

YXUYOW

London

Sun 7/12

8:10 p.m.-6:21 p.m.

2 stops22h 11m

C$ 339

LondonOttawa

YXU - YOW

YXUYOW

London

Sun 7/12

8:10 p.m.-4:51 p.m.

3 stops20h 41m

C$ 351

Flights are sorted by cheapest round-trip flights first.

Deals found on 26/10

Showing 1-10 of 16 results
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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 is the cheapest month to book a flight from London, Ontario to Ottawa?

Currently, February is the cheapest month in which you can book a flight from London, Ontario to Ottawa (average of C$ 101). Flying from London, Ontario to Ottawa in August is currently the most expensive (average of C$ 200). 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 YXU to YOW?

Find hourly flight availability from London to Ottawa. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 27 October 2025.

It’s optimal to fly from London, Ontario to Ottawa in the evening. By choosing this option you can save up to 48% on the cost of your flight, compared to a flight at noon.

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 27 October 2025.
Get a feel of what it's like to fly with WestJet and 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.
WestJet
7.2
Good
3,148 reviews
Check prices

Comfort

7.1

Boarding

7.4

Entertainment

6.1

Overall

7.2

Crew

7.9

Food

6.2

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
3,148 reviews
WestJet
7.2
Good
3,148 reviews
Check prices

Comfort

7.1

Boarding

7.4

Entertainment

6.1

Overall

7.2

Crew

7.9

Food

6.2

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
7.1
Good
10,370 reviews
WestJet
7.2
Good
3,148 reviews
Check prices

Comfort

7.1

Boarding

7.4

Entertainment

6.1

Overall

7.2

Crew

7.9

Food

6.2

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 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?

    Air Canada can get you from London, Ontario to Ottawa in just under 3h 08m. Your travel time can differ by up to . The distance between London, Ontario and Ottawa is about 505 km.

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

    WestJet, at C$ 399, was found to be the cheapest airline from London, Ontario to Ottawa. An alternate airline flying to your destination would be Air Canada. WestJet is priced at 58% 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.

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

    Currently, February is the cheapest month in which you can book a flight from London, Ontario to Ottawa (average of C$ 101). Flying from London, Ontario to Ottawa in August is currently the most expensive (average of C$ 200). 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
Gatineau
Brockville
Smiths Falls
Perth
Prescott
Pembroke
Wakefield

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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 2 airlines flying from London to Ottawa

Discover the top 2 airlines 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 27 October 2025.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapestC$ 399AverageC$ 612FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Air CanadaCheapestC$ 550AverageC$ 967FlexibilityNo 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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