Find flights
When to book
Airlines
FAQs

Cheap flights from London, ON to Ottawa from C$ 294

YXU — YOW
25 Nov — 2 Dec1
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

Mon 7/1210:15 a.m. -
2 stops37h 25m
Mon 14/127:00 a.m. -
1 stop10h 45m
Deal found 23/10C$ 657
Sat 28/1110:00 a.m. -
2 stops12h 02m
Mon 30/117:05 a.m. -
1 stop10h 40m
Deal found 22/10C$ 660
Mon 7/1210:15 a.m. -
1 stop31h 10m
Mon 14/127:00 a.m. -
1 stop10h 45m
Deal found 23/10C$ 728
Sat 28/116:40 a.m. -
1 stop17h 00m
Mon 30/117:05 a.m. -
1 stop10h 40m
Deal found 22/10C$ 773
Sat 12/126:40 a.m. -
1 stop17h 00m
Sun 13/123:30 p.m. -
1 stop26h 15m
Deal found 22/10C$ 787
Sat 21/116:40 a.m. -
1 stop17h 00m
Sun 22/116:10 a.m. -
1 stop23h 25m
Deal found 22/10C$ 819
Sun 22/1110:15 a.m. -
1 stop13h 19m
Sun 29/117:05 a.m. -
1 stop10h 40m
Deal found 25/10C$ 836
Fri 20/116:40 a.m. -
1 stop17h 00m
Sun 22/113:30 p.m. -
1 stop26h 15m
Deal found 26/10C$ 839
Wed 23/126:15 a.m. -
2 stops29h 18m
Mon 4/14:35 p.m. -
1 stop21h 30m
Deal found 24/10C$ 889
Tue 22/128:20 a.m. -
1 stop30h 10m
Mon 4/14:35 p.m. -
1 stop21h 30m
Deal found 24/10C$ 891
Thu 26/116:40 a.m. -
1 stop17h 00m
Tue 1/124:15 p.m. -
1 stop13h 20m
Deal found 21/10C$ 902

Find flight deals from London to Ottawa

Round-trip from

C$ 657

One-way from

C$ 294

Popular in

August

Cheapest in

February

Average price

C$ 994
Porter Airlines
  • Porter Airlines
  • 7/12-14/12
  • 3 total stops
  • 48h 10m total
  • London to Ottawa
Search Deals
Porter Airlines
  • Porter Airlines
  • 11/12-31/12
  • 1 total stop
  • 14h 15m total
  • London to Ottawa
Search Deals
Highest demand for flights based on searches. 47% potential increase in price (C$ 1,266 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 11% potential price decrease (C$ 141 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2026
Search Deals

Cheapflights Fare Finder

 
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 London - YOW Ottawa

YXUYOW

London

Fri 11/12

9:30 a.m.-11:45 p.m.

1 stop14h 15m

Ottawa

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 294

LondonOttawa

YXU London - YOW Ottawa

YXUYOW

London

Fri 11/12

9:30 a.m.-11:40 p.m.

2 stops38h 10m

Ottawa

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 356

LondonOttawa

YXU London - YOW Ottawa

YXUYOW

London

Tue 10/11

9:05 p.m.-1:40 a.m.

1 stop4h 35m

Ottawa

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 431

LondonOttawa

YXU London - YOW Ottawa

YXUYOW

London

Sat 14/11

6:40 a.m.-11:40 p.m.

1 stop17h 00m

Ottawa

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 441

LondonOttawa

YXU London - YOW Ottawa

YXUYOW

London

Sat 14/11

6:40 a.m.-10:02 p.m.

2 stops15h 22m

Ottawa

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 555

LondonOttawa

YXU London - YOW Ottawa

YXUYOW

London

Sat 7/11

9:05 p.m.-1:40 a.m.

1 stop4h 35m

Ottawa

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 636

LondonOttawa

YXU London - YOW Ottawa

YXUYOW

London

Sun 10/1

6:15 a.m.-8:13 a.m.

2 stops25h 58m

Ottawa

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 647

LondonOttawa

YXU London - YOW Ottawa

YXUYOW

London

Mon 7/12

10:15 a.m.-11:40 p.m.

2 stops37h 25m

Ottawa

Mon 14/12

7:00 a.m.-5:45 p.m.

1 stop10h 45m

C$ 657
Quickest round-trip

LondonOttawa

YXU London - YOW Ottawa

YXUYOW

London

Wed 4/11

3:25 p.m.-7:45 p.m.

1 stop4h 20m

Ottawa

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 668

LondonOttawa

YXU London - YOW Ottawa

YXUYOW

London

Fri 6/11

9:05 p.m.-1:40 a.m.

1 stop4h 35m

Ottawa

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 671

Flights are sorted by cheapest round-trip flights first.

Deals found on 26/10

Showing 1-10 of 18 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

Cheapflights Insights

Everything you need to know about your flight from London to Ottawa

How much does it cost to fly round-trip from London, Ontario to Ottawa?

Airfare is below average for this route at the moment.

London, Ontario to Ottawa flights typically cost between C$ 666 and C$ 1,066 in December.
The cheapest round-trip price found within the last 5 days was C$ 657 on Multiple Airlines (7 Dec-14 Dec).

Reviews of airlines servicing Ottawa

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
11,815 reviews
Check prices

Entertainment

6.8

Overall

7.1

Crew

7.8

Food

6.3

Boarding

7.3

Comfort

7.1

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
11,815 reviews
Air Canada
7.1
Good
11,815 reviews
Check prices

Entertainment

6.8

Overall

7.1

Crew

7.8

Food

6.3

Boarding

7.3

Comfort

7.1

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

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

    Porter Airlines can get you from London, Ontario to Ottawa in just under 30h 10m. 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$ 554, was found to be the cheapest airline from London, Ontario to Ottawa.. Air Canada is priced at 45% 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
Prescott
Brockville
Wakefield
Pembroke
Smiths Falls

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for London to Ottawa

Pearson Intl to Pierre Elliott Trudeau Intl flights
Toronto Island to Pierre Elliott Trudeau Intl flights
Pearson Intl to Ottawa flights
Toronto Island to Ottawa flights
Pierre Elliott Trudeau Intl to Pearson Intl flights
Hamilton to Ottawa flights
Ottawa to Pearson Intl flights
Pierre Elliott Trudeau Intl to Toronto Island flights
Ottawa to Toronto Island flights
Thunder Bay to Pearson Intl flights
Ottawa to Hamilton flights
Thunder Bay to Toronto Island flights
Pearson Intl to Thunder Bay flights
Thunder Bay to Hamilton flights
Toronto Island to Thunder Bay flights
Pierre Elliott Trudeau Intl to Ottawa flights
Pierre Elliott Trudeau Intl to Hamilton flights
Hamilton to Pierre Elliott Trudeau Intl flights
Thunder Bay to Pierre Elliott Trudeau Intl flights
Hamilton to Thunder Bay flights
Ottawa to Pierre Elliott Trudeau Intl flights
Thunder Bay to Ottawa flights
Pierre Elliott Trudeau Intl to Windsor flights
Ottawa to Windsor flights
Pearson Intl to Sudbury flights
London to Pierre Elliott Trudeau Intl flights
London to Pearson Intl flights
Toronto Island to Sault Ste Marie flights
Toronto Island to Timmins flights
Sault Ste Marie to Toronto Island flights
Windsor to Ottawa flights
Windsor to Pearson Intl flights
Timmins to Toronto Island flights
Windsor to Toronto Island flights
Windsor to Pierre Elliott Trudeau Intl flights
Pearson Intl to London flights
Region of Waterloo Intl to Pierre Elliott Trudeau Intl flights
Pearson Intl to Windsor flights
Ottawa to Thunder Bay flights
Sudbury to Pearson Intl flights
Toronto Island to Windsor flights
Pierre Elliott Trudeau Intl to Thunder Bay flights
Pearson Intl to Sault Ste Marie flights
Pierre Elliott Trudeau Intl to London flights
Sudbury to Toronto Island flights
Timmins to Pearson Intl flights
Sault Ste Marie to Pearson Intl flights
Sault Ste Marie to Pierre Elliott Trudeau Intl flights
Sault Ste Marie to Thunder Bay flights

Top airline flying from London to Ottawa

AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 554AverageC$ 829FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.