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

There are many flights that can get you from Ottawa to London, Ontario in 9h 05m. Fly via WestJet to get the fastest option. The distance from Ottawa to London, Ontario is about 505 km.

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

Air Canada, at C$ 465, was found to be the cheapest airline from Ottawa to London, Ontario.. Air Canada is 43% 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$ 211+ 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 12 September 2026.

Mon 19/108:15 p.m. -

1 stop9h 05m

Wed 21/106:10 a.m. -

1 stop11h 05m

Deal found 9/9C$ 432

Tue 13/108:15 p.m. -

1 stop9h 05m

Fri 16/106:10 a.m. -

1 stop11h 05m

Deal found 11/9C$ 454

Wed 25/116:10 a.m. -

1 stop23h 25m

Fri 27/116:40 a.m. -

1 stop17h 21m

Deal found 8/9C$ 479

Thu 22/108:15 p.m. -

1 stop9h 05m

Sun 25/106:10 a.m. -

1 stop18h 50m

Deal found 11/9C$ 495

Mon 19/108:15 p.m. -

1 stop9h 05m

Fri 23/106:10 a.m. -

1 stop11h 05m

Deal found 10/9C$ 504

Mon 5/108:15 p.m. -

1 stop9h 05m

Wed 7/106:10 a.m. -

1 stop11h 05m

Deal found 10/9C$ 522

Wed 25/1110:20 a.m. -

3 stops19h 15m

Fri 27/116:40 a.m. -

1 stop17h 21m

Deal found 8/9C$ 546

Mon 19/108:15 p.m. -

1 stop9h 05m

Wed 21/106:10 a.m. -

2 stops18h 15m

Deal found 9/9C$ 551

Wed 14/108:15 p.m. -

1 stop33h 05m

Tue 20/106:10 a.m. -

1 stop13h 10m

Deal found 10/9C$ 564

Thu 22/104:00 p.m. -

2 stops13h 20m

Sun 25/106:10 a.m. -

1 stop18h 50m

Deal found 11/9C$ 574

Wed 14/108:15 p.m. -

1 stop33h 05m

Tue 20/106:10 a.m. -

2 stops18h 15m

Deal found 10/9C$ 582

Find flight deals from Ottawa to London

Round-trip from	C$ 432
One-way from	C$ 211
Popular in	November
Cheapest in	October
Average price	C$ 716

WestJet
19/10-21/10
2 total stops
20h 10m total
Ottawa to London

Search Deals

WestJet
6/10-31/12
1 total stop
9h 05m total
Ottawa to London

Search Deals

Highest demand for flights based on searches. 16% potential increase in price (C$ 224 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease (C$ 48 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in September 2026

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

OttawaLondon

YOW Ottawa - YXU London

YOWYXU

Ottawa

Tue 6/10

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

1 stop9h 05m

London

Wed 31/12

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

Nonstop0h 00m

C$ 211

OttawaLondon

YOW Ottawa - YXU London

YOWYXU

Ottawa

Thu 1/10

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

1 stop9h 05m

London

Wed 31/12

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

Nonstop0h 00m

C$ 248

OttawaLondon

YOW Ottawa - YXU London

YOWYXU

Ottawa

Fri 9/10

7:10 p.m.-5:20 a.m.

3 stops34h 10m

London

Wed 31/12

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

Nonstop0h 00m

C$ 263

OttawaLondon

YOW Ottawa - YXU London

YOWYXU

Ottawa

Sun 18/10

7:20 a.m.-5:20 a.m.

1 stop22h 00m

London

Wed 31/12

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

Nonstop0h 00m

C$ 276

OttawaLondon

YOW Ottawa - YXU London

YOWYXU

Ottawa

Sun 11/10

6:15 p.m.-5:20 a.m.

2 stops11h 05m

London

Wed 31/12

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

Nonstop0h 00m

C$ 280

OttawaLondon

YOW Ottawa - YXU London

YOWYXU

Ottawa

Wed 14/10

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

1 stop33h 05m

London

Wed 31/12

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

Nonstop0h 00m

C$ 298

OttawaLondon

YOW Ottawa - YXU London

YOWYXU

Ottawa

Fri 9/10

6:15 p.m.-5:20 a.m.

2 stops35h 05m

London

Wed 31/12

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

Nonstop0h 00m

C$ 320

OttawaLondon

YOW Ottawa - YXU London

YOWYXU

Ottawa

Wed 21/10

4:00 p.m.-5:20 a.m.

2 stops13h 20m

London

Wed 31/12

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

Nonstop0h 00m

C$ 321

OttawaLondon

YOW Ottawa - YXU London

YOWYXU

Ottawa

Mon 5/10

6:15 p.m.-5:20 a.m.

2 stops35h 05m

London

Wed 31/12

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

Nonstop0h 00m

C$ 321

OttawaLondon

YOW Ottawa - YXU London

YOWYXU

Ottawa

Mon 19/10

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

1 stop9h 05m

London

Wed 21/10

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

1 stop11h 05m

C$ 432

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/9

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$ 664). Flying from Ottawa to London, Ontario in November is currently the most expensive (average of C$ 1,187). 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

11,617 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

11,617 reviews

Air Canada

7.1

Good

11,617 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 9h 05m. Fly via WestJet to get the fastest option. The distance from Ottawa to London, Ontario is about 505 km.
What is the cheapest airline to fly from Ottawa to London, Ontario round-trip?
Air Canada, at C$ 465, was found to be the cheapest airline from Ottawa to London, Ontario.. Air Canada 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, April is the cheapest month in which you can book a flight from Ottawa to London, Ontario (average of C$ 664). Flying from Ottawa to London, Ontario in November is currently the most expensive (average of C$ 1,187). 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

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Top airline flying from Ottawa to London

Airline	Cheapest	Average	Flexibility	On-time
Air Canada	CheapestC$ 465	AverageC$ 875	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.

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Cheap flights from Ottawa to London, ON from C$ 211

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 6/10. 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 12 September 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 12 September 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 12 September 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 12 September 2026.

Last-minute flights from Ottawa to LondonDiscover last-minute flight deals from Ottawa to London. Data last updated 12 September 2026 and is based on user searches.

Discover last-minute flight deals from Ottawa to London. Data last updated 12 September 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 12 September 2026.

Search for one-way flight options from Ottawa to London. Find affordable one-way fares based on user searches. Data last updated 12 September 2026.

Find flight deals from Ottawa to London

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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?

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Alternative routes for Ottawa to London

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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

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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 12 September 2026.

Ottawa and London flights

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Other flights from Ottawa

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Top airline flying from Ottawa to London

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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?

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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 12 September 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 12 September 2026.

Last-minute flights from Ottawa to London
Discover last-minute flight deals from Ottawa to London. Data last updated 12 September 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 12 September 2026.