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

There are many flights that can get you from Ottawa to London, Ontario in 23h 25m. Fly via WestJet or Porter Airlines to get the fastest option. The distance from Ottawa to London, Ontario is about 505 km. This flight may include one or multiple stops.

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

Air Canada, at C$ 447, was found to be the cheapest airline from Ottawa to London, Ontario.. Air Canada is 47% cheaper than the average price of flights available within the next 90 days to this destination.

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.

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).

What is the cheapest time of day to fly from YOW to YXU?

When flying from Ottawa to London, Ontario, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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.

C$ 335+ Cheap Flights from Ottawa to London, ON

Cheap flight deals from Ottawa to London

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

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 24 October 2026.

Fri 4/126:55 p.m. -

1 stop10h 40m

Fri 11/129:30 a.m. -

1 stop14h 15m

Deal found 19/10C$ 669

Thu 26/116:55 p.m. -

1 stop10h 40m

Thu 3/1210:00 a.m. -

2 stops31h 15m

Deal found 21/10C$ 798

Mon 16/115:45 p.m. -

2 stops11h 50m

Thu 26/116:40 a.m. -

1 stop17h 00m

Deal found 19/10C$ 802

Thu 26/114:15 p.m. -

1 stop13h 20m

Thu 3/126:40 a.m. -

1 stop15h 20m

Deal found 21/10C$ 811

Sat 21/117:00 a.m. -

2 stops10h 00m

Sat 28/116:40 a.m. -

1 stop17h 00m

Deal found 22/10C$ 868

Wed 18/116:10 a.m. -

1 stop23h 25m

Sat 21/116:40 a.m. -

1 stop17h 00m

Deal found 21/10C$ 885

Sun 6/123:30 p.m. -

1 stop26h 15m

Sun 13/1210:15 a.m. -

1 stop31h 10m

Deal found 22/10C$ 920

Wed 18/1110:05 a.m. -

1 stop4h 37m

Sun 22/113:25 p.m. -

1 stop3h 20m

Deal found 19/10C$ 921

Sat 21/1110:05 a.m. -

1 stop4h 37m

Sat 28/119:05 p.m. -

1 stop4h 35m

Deal found 22/10C$ 926

Fri 4/127:00 a.m. -

1 stop10h 00m

Fri 11/129:30 a.m. -

1 stop14h 15m

Deal found 20/10C$ 930

Find flight deals from Ottawa to London

Round-trip from	C$ 669
One-way from	C$ 335
Popular in	November
Cheapest in	April
Average price	C$ 885

Porter Airlines
4/12-11/12
2 total stops
24h 55m total
Ottawa to London

Search Deals

Porter Airlines
20/11-31/12
1 total stop
9h 55m total
Ottawa to London

Search Deals

Highest demand for flights based on searches. 22% potential increase in price (C$ 343 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease (C$ 46 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in October 2026

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OttawaLondon

YOW Ottawa - YXU London

YOWYXU

Ottawa

Mon 18/1

4:15 p.m.-5:35 a.m.

1 stop13h 20m

London

Wed 31/12

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

Nonstop0h 00m

C$ 363

OttawaLondon

YOW Ottawa - YXU London

YOWYXU

Ottawa

Wed 18/11

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

2 stops34h 00m

London

Wed 31/12

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

Nonstop0h 00m

C$ 367

OttawaLondon

YOW Ottawa - YXU London

YOWYXU

Ottawa

Sat 21/11

12:50 p.m.-5:45 p.m.

2 stops28h 55m

London

Wed 31/12

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

Nonstop0h 00m

C$ 374

OttawaLondon

YOW Ottawa - YXU London

YOWYXU

Ottawa

Wed 18/11

6:10 a.m.-5:35 a.m.

1 stop23h 25m

London

Wed 31/12

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

Nonstop0h 00m

C$ 392

OttawaLondon

YOW Ottawa - YXU London

YOWYXU

Ottawa

Wed 11/11

6:10 a.m.-5:35 a.m.

1 stop23h 25m

London

Wed 31/12

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

Nonstop0h 00m

C$ 405

OttawaLondon

YOW Ottawa - YXU London

YOWYXU

Ottawa

Wed 11/11

8:25 a.m.-5:35 a.m.

3 stops21h 10m

London

Wed 31/12

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

Nonstop0h 00m

C$ 528

OttawaLondon

YOW Ottawa - YXU London

YOWYXU

Ottawa

Sat 21/11

12:50 p.m.-5:35 a.m.

3 stops40h 45m

London

Wed 31/12

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

Nonstop0h 00m

C$ 577

OttawaLondon

YOW Ottawa - YXU London

YOWYXU

Ottawa

Fri 20/11

5:30 a.m.-5:35 a.m.

3 stops24h 05m

London

Wed 31/12

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

Nonstop0h 00m

C$ 633

Quickest round-trip

OttawaLondon

YOW Ottawa - YXU London

YOWYXU

Ottawa

Wed 4/11

10:05 a.m.-2:42 p.m.

1 stop4h 37m

London

Wed 31/12

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

Nonstop0h 00m

C$ 645

OttawaLondon

YOW Ottawa - YXU London

YOWYXU

Ottawa

Fri 6/11

10:05 a.m.-2:42 p.m.

1 stop4h 37m

London

Wed 31/12

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

Nonstop0h 00m

C$ 647

Flights are sorted by cheapest round-trip flights first.

Deals found on 22/10

Showing 1-10 of 19 resultsSorted by cheapest first

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.

YOW-YXU

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

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

Currently, April is the cheapest month in which you can book a flight from Ottawa to London, Ontario (average of C$ 671). Flying from Ottawa to London, Ontario in November is currently the most expensive (average of C$ 1,200). 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.

Reviews of airlines servicing London

Get a feel of what it's like to fly with Air Canada from Ottawa to London 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

11,805 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Sugith,Jan 2026

YSB - YYZ

Left 2 hours late. Stuck on plane for an hour after boarding before take off.

Air Canada

7.1

Good

11,805 reviews

Air Canada

7.1

Good

11,805 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Sugith,Jan 2026

YSB - YYZ

Left 2 hours late. Stuck on plane for an hour after boarding before take off.

Related info for your journey

How long is the flight from Ottawa to London, Ontario?
There are many flights that can get you from Ottawa to London, Ontario in 23h 25m. Fly via WestJet or Porter Airlines to get the fastest option. The distance from Ottawa to London, Ontario is about 505 km. This flight may include one or multiple stops.
What is the cheapest airline to fly from Ottawa to London, Ontario round-trip?
Air Canada, at C$ 447, was found to be the cheapest airline from Ottawa to London, Ontario.. Air Canada is 47% 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, April is the cheapest month in which you can book a flight from Ottawa to London, Ontario (average of C$ 671). Flying from Ottawa to London, Ontario in November is currently the most expensive (average of C$ 1,200). 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

Grand Bend

Port Stanley

Browse thousands of different options on Cheapflights for your next trip

Alternative routes

Complete your trip

Direct flights to Ontario

Flights by cabin class

London flight routes

Other flight options

Other flights from Ottawa

Popular flights

Alternative routes for Ottawa to London

Pearson Intl to Pierre Elliott Trudeau Intl flights

Pierre Elliott Trudeau Intl to Toronto Island flights

Pierre Elliott Trudeau Intl to Pearson Intl flights

Toronto Island to Pierre Elliott Trudeau Intl flights

Toronto Island to Ottawa flights

Pearson Intl to Ottawa flights

Thunder Bay to Pearson Intl flights

Hamilton to Ottawa flights

Thunder Bay to Toronto Island flights

Ottawa to Toronto Island flights

Ottawa to Pearson Intl flights

Ottawa to Hamilton flights

Toronto Island to Thunder Bay flights

Pearson Intl to Thunder Bay flights

Thunder Bay to Hamilton flights

Pierre Elliott Trudeau Intl to Hamilton flights

Hamilton to Pierre Elliott Trudeau Intl flights

Hamilton to Thunder Bay flights

Thunder Bay to Ottawa flights

Pierre Elliott Trudeau Intl to Ottawa flights

Toronto Island to Sault Ste Marie flights

Ottawa to Windsor flights

Toronto Island to Timmins flights

Windsor to Ottawa flights

London to Pierre Elliott Trudeau Intl flights

Ottawa to Pierre Elliott Trudeau Intl flights

Sault Ste Marie to Toronto Island flights

Windsor to Pearson Intl flights

Pearson Intl to London flights

Windsor to Toronto Island flights

Pearson Intl to Windsor flights

Region of Waterloo Intl to Pierre Elliott Trudeau Intl flights

Pierre Elliott Trudeau Intl to Windsor flights

Windsor to Pierre Elliott Trudeau Intl flights

Toronto Island to Windsor flights

London to Ottawa flights

Timmins to Toronto Island flights

Sudbury to Pearson Intl flights

Pierre Elliott Trudeau Intl to London flights

London to Pearson Intl flights

Pearson Intl to Sudbury flights

Sudbury to Toronto Island flights

Timmins to Pearson Intl flights

Pearson Intl to Sault Ste Marie flights

Pearson Intl to Timmins flights

Ottawa to Thunder Bay flights

Pierre Elliott Trudeau Intl to Thunder Bay flights

Sault Ste Marie to Pearson Intl flights

Thunder Bay to Pierre Elliott Trudeau Intl flights

Top airline flying from Ottawa to London

Airline	Cheapest	Average	Flexibility	On-time
Air Canada	CheapestC$ 447	AverageC$ 862	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights

Fly with Cheapflights

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.

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.

Cheap flights from Ottawa to London, ON from C$ 335

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 20/11. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Ottawa to London

Cheapest flights from Ottawa to LondonExplore 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 24 October 2026.

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 24 October 2026.

Best flights from Ottawa to LondonDiscover carefully curated flight deals from Ottawa to London that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 24 October 2026.

Discover carefully curated flight deals from Ottawa to London that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 24 October 2026.

Last-minute flights from Ottawa to LondonDiscover last-minute flight deals from Ottawa to London. Data last updated 24 October 2026 and is based on user searches.

Discover last-minute flight deals from Ottawa to London. Data last updated 24 October 2026 and is based on user searches.

One-way flights from Ottawa to LondonSearch for one-way flight options from Ottawa to London. Find affordable one-way fares based on user searches. Data last updated 24 October 2026.

Search for one-way flight options from Ottawa to London. Find affordable one-way fares based on user searches. Data last updated 24 October 2026.

Find flight deals from Ottawa to London

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

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

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.

Cheapflights Insights

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

Reviews of airlines servicing London

Get a feel of what it's like to fly with Air Canada from Ottawa to London by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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

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

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

How can I find direct flights from Ottawa to London?

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

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

Travelling to a place near London?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Ottawa to London

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to London by adding a car rental and/or hotel reservation to your travel itinerary.

Direct flights to Ontario

Book a non-stop flight to one of these other cities located in Ontario.

Search flights from Ottawa to London by cabin class

Find flights from Ottawa to London, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Other flights to London

Explore flights to London departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 24 October 2026.

Ottawa and London flights

Browse other Ottawa and London flight options. Last updated on 24 October 2026.

Other flights from Ottawa

Browse through other flights departing from Ottawa. Flights are based on user searches made on Cheapflights and were last updated on 24 October 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Top airline flying from Ottawa to London

Fly with Cheapflights

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

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

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

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

100% Free

Book with Flexibility

Travel Smart

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 24 October 2026.

Best flights from Ottawa to London
Discover carefully curated flight deals from Ottawa to London that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 24 October 2026.

Last-minute flights from Ottawa to London
Discover last-minute flight deals from Ottawa to London. Data last updated 24 October 2026 and is based on user searches.

One-way flights from Ottawa to London
Search for one-way flight options from Ottawa to London. Find affordable one-way fares based on user searches. Data last updated 24 October 2026.