Cheap Flights from London to Ottawa from RM2,596

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Flight deals from London to Ottawa

Looking for a cheap last-minute deal or the best return flight from London to Ottawa? Find the lowest prices on one-way and return tickets right here.

Ottawa.RM2,596 per passenger.Departing Thu, 15 Jan, returning Sat, 24 Jan.Return flight with SWISS and Air Canada.Outbound indirect flight with SWISS, departs from London Heathrow on Thu, 15 Jan, arriving in Ottawa International.Inbound indirect flight with Air Canada, departs from Ottawa International on Sat, 24 Jan, arriving in London Heathrow.Price includes taxes and charges.From RM2,596, select.

Ottawa.RM2,601 per passenger.Departing Fri, 12 Dec, returning Sun, 14 Dec.Return flight with Air France and KLM.Outbound indirect flight with Air France, departs from London Heathrow on Fri, 12 Dec, arriving in Ottawa International.Inbound indirect flight with KLM, departs from Ottawa International on Sun, 14 Dec, arriving in London Heathrow.Price includes taxes and charges.From RM2,601, select.

Ottawa.RM2,604 per passenger.Departing Tue, 16 Dec, returning Sun, 18 Jan.Return flight with Air France and KLM.Outbound indirect flight with Air France, departs from London Heathrow on Tue, 16 Dec, arriving in Ottawa International.Inbound indirect flight with KLM, departs from Ottawa International on Sun, 18 Jan, arriving in London Heathrow.Price includes taxes and charges.From RM2,604, select.

Ottawa.RM2,609 per passenger.Departing Thu, 20 Nov, returning Thu, 27 Nov.Return flight with Air France.Outbound indirect flight with Air France, departs from London Heathrow on Thu, 20 Nov, arriving in Ottawa International.Inbound indirect flight with Air France, departs from Ottawa International on Thu, 27 Nov, arriving in London Heathrow.Price includes taxes and charges.From RM2,609, select.

Ottawa.RM2,633 per passenger.Departing Sun, 15 Feb, returning Sun, 1 Mar.Return flight with Air France and KLM.Outbound indirect flight with Air France, departs from London Heathrow on Sun, 15 Feb, arriving in Ottawa International.Inbound indirect flight with KLM, departs from Ottawa International on Sun, 1 Mar, arriving in London Heathrow.Price includes taxes and charges.From RM2,633, select.

Ottawa.RM2,634 per passenger.Departing Sun, 25 Jan, returning Sun, 1 Feb.Return flight with Air France and KLM.Outbound indirect flight with Air France, departs from London Heathrow on Sun, 25 Jan, arriving in Ottawa International.Inbound indirect flight with KLM, departs from Ottawa International on Sun, 1 Feb, arriving in London Heathrow.Price includes taxes and charges.From RM2,634, select.

Ottawa.RM2,637 per passenger.Departing Sun, 15 Feb, returning Fri, 20 Feb.Return flight with Air France and KLM.Outbound indirect flight with Air France, departs from London Heathrow on Sun, 15 Feb, arriving in Ottawa International.Inbound indirect flight with KLM, departs from Ottawa International on Fri, 20 Feb, arriving in London Heathrow.Price includes taxes and charges.From RM2,637, select.

Ottawa.RM2,639 per passenger.Departing Mon, 21 Sep, returning Wed, 30 Sep.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from London Heathrow on Mon, 21 Sep, arriving in Ottawa International.Inbound indirect flight with Air Canada, departs from Ottawa International on Wed, 30 Sep, arriving in London Heathrow.Price includes taxes and charges.From RM2,639, select.

Find the cheapest month to fly from London to Ottawa

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like London to Ottawa flights are currently cheapest in January.

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Direct flights from London to Ottawa

Alternative London to Ottawa routes

Looking for the cheapest, fastest or easiest route from London to Ottawa? You could fly into the following airports instead.

London to Ottawa: Flight information

The things to know before you go.

Cheapest flight found	RM2,596
Cheapest month to fly	January
Average flight time	7 hrs, 51 mins
Most popular airline	United
Average flights per week	64

Finding cheap flights from London to Ottawa: Frequently asked questions

How many airports are there in Ottawa?

There are 2 airports in Ottawa: Ottawa International and Ottawa Gatineau.

How much are return flights from London to Ottawa?

The best price we found for a return flight from London to Ottawa is RM2,596. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

How long does it take to fly from London to Ottawa?

7 hours and 50 minutes is the average flight time from London to Ottawa.

Which airlines fly direct from London to Ottawa?

United, Aegean Airlines and Air Canada fly direct from London to Ottawa.

How many flights are there a week from London to Ottawa?

As of October 2025, there are 288 flights per week flying from London to Ottawa.

When is the cheapest time to fly from London to Ottawa?

The cheapest month to fly from London to Ottawa is usually January.

Which is the cheapest airport to fly into in Ottawa?

If you're flying from London, the cheapest airport near Ottawa is Ottawa International – which is 11.2 km away from the centre of Ottawa. We've found flights into this airport from RM2,596.

Which upcoming date is cheapest to fly from London to Ottawa on?

After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from London to Ottawa on Thursday, 15 January 2026.

Can I get a direct flight from London to Ottawa?

Yes – the average flight time is 7 hours and 50 minutes.

How can I get the best flight deal from London to Ottawa?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Ottawa but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

When is the best time to book flights to Ottawa?

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Ottawa is around 40 days in advance, so don’t leave your flight to the last minute.

What’s the weather like in Ottawa?

In October, the average temperature is usually around 8°C. July is typically the warmest month in Ottawa, when it usually averages around 25°C. You can expect the least rain in February. The coldest month is January, with temperatures averaging -16°C. The rainiest month is June.

Which is the cheapest airline to fly from London to Ottawa with?

The cheapest airline that flies to Ottawa is SWISS. And the cheapest airline that flies to Ottawa Gatineau Airport is Air Canada.

Flying from London to Ottawa: what you need to know

You can choose from multiple airports when organising your flight from London to Ottawa. Check out your options for leaving London from London Heathrow Airport (LHR), London Gatwick Airport (LGW) or Stansted Airport (STN). London Luton Airport (LTN) and London City Airport (LCY) also service London.
Ottawa/Macdonald-Cartier International Airport (YOW) is the primary arrival point in Ottawa.
The average time for a direct London to Ottawa flight is 7 hours 30 minutes.
Ottawa's timezone is UTC-4, making Ottawa four hours behind London.
The busiest route for flights from London to Ottawa is from London Heathrow Airport (LHR) to Ottawa/Macdonald-Cartier International Airport (YOW). Choose from two services every week between these two airports. If you want to head off as soon as possible, the earliest flight from LHR to YOW is the 12:40 Air Canada service. If you prefer to leave later in the day, the last departure is at 14:05 with Air Canada.
To ensure you get on your London to Ottawa flight, leave enough time to check in and find your gate. Turning up two hours before international departures and one hour before domestic flights is the general rule to follow.
Flying during a peak time such as July? School holidays and other popular periods can lead to longer lines and delays at security. Play things extra safe and arrive up to four hours before international flights and two hours before domestic departures.

How to find the cheapest flights from London to Ottawa

Get cheap London to Ottawa flights by booking six months ahead. According to our research, that's the ideal time frame for picking up a bargain.
Plan your trip for September. That's the best month for scoring cheap plane tickets from London to Ottawa. If your travel dates are not set in stone, use the 'Whole month' tool to find the lowest price across every month.
Snapping up a cheap flight from London to Ottawa is easy with Price Alerts. All you need to do is set up one of these automatic alerts and we'll let you know when there's a better deal.
Tailor your travel plans using filters. Select your ideal departure and arrival times, total journey duration and airlines. You can also sort your results by 'Best,' 'Fastest' or 'Cheapest' London to Ottawa flights.

Flying from London

London Heathrow Airport (LHR)

If you're searching for a direct flight from London to Ottawa, you can leave from London Heathrow Airport (LHR). Fly from LHR to Ottawa/Macdonald-Cartier International Airport (YOW) in one seamless trip.
Look out for deals with Air Canada. This airline offers direct London to Ottawa plane tickets out of LHR.
We make it a breeze to book a London to Ottawa flight with a stopover. To see all the options leaving from London Heathrow Airport, uncheck 'Direct flights only.' Next, select a flight with a stop long enough to explore the city of your choice. Top stopovers include:
- Pearson International Airport (YYZ)
- Montreal-Pierre Elliott Trudeau International Airport (YUL)
- Halifax Stanfield International Airport (YHZ)
The journey from central London to LHR takes about 1 hour by public transport. If you ride-share, drive or get a cab, you'll cover the 26 kilometres in 55 minutes or so, depending on traffic.
Want a relaxed start to your journey? Stay near London Heathrow Airport. Whether you've booked an early flight from London to Ottawa or just don't want to be rushed, these hotels are the answer:
When it comes to the on-time performance of London Heathrow Airport, data shows 68.18% of flights arrive within the expected time frame.

London Gatwick Airport (LGW)

Visit family or friends or just take a moment to stretch your legs with a stopover. If you'd like to break up your London to Ottawa flight, here's where you can stop when setting off from London Gatwick Airport:
- Pearson International Airport (YYZ)
- Montreal-Pierre Elliott Trudeau International Airport (YUL)
- Quebec City Jean Lesage International Airport (YQB)
Using public transport, you can travel from central London to LGW in around 30 minutes. The airport is roughly 40 kilometres away. Driving will take you about 1 hour 20 minutes.
Want to enjoy an extra night away before catching your flight from London to Ottawa? Kick back in a hotel near London Gatwick Airport before your break officially starts. Check out these accommodation options:
69% of all departures from London Gatwick Airport meet their expected arrival time.

Stansted Airport (STN)

From the centre of London, STN is around 48 kilometres away. It takes roughly 1 hour to arrive by car and 1 hour 25 minutes or so if you take public transport.
Make taking an early London to Ottawa flight the easiest part of your journey. Book a room at one of these hotels near Stansted Airport and head to your check-in counter feeling relaxed and unhurried:
The on-time performance rating of STN is 64.73%. To put it simply, that's how often flights departing this airport arrive within the expected time frame.

Arriving in Ottawa

Ottawa Gatineau Airport (YND)

Ottawa Gatineau Airport (YND) to central Ottawa takes about 20 minutes to reach by car. The centre is roughly 14 kilometres away.
It usually takes 1 hour 40 minutes to get there on public transport.
If you're arriving on a late flight from London to Ottawa, nothing beats the convenience of staying near the terminal. Grab your suitcases from the carousel and then be showered and relaxing not long after at one of these accommodation options near YND:
Grab an Ottawa Gatineau Airport rental car and discover corners of Ottawa that aren't in every guidebook. Find your ideal set of wheels with Hertz.
Book your ride from Ottawa Gatineau Airport at least a few weeks before your trip to get the lowest price possible. If you're travelling during peak season, it's smart to book your London to Ottawa flight even earlier.

Ottawa/Macdonald-Cartier International Airport (YOW)

The centre of Ottawa is located around 11 kilometres from Ottawa/Macdonald-Cartier International Airport (YOW). As soon as your flight from London to Ottawa has hit the runway and you've made your way out of the airport, the drive should be around 20 minutes.
If you choose to travel on public transport, you'll get to the city centre in 45 minutes or so.
Forget about inconvenient public transport timetables or long cab queues. Pick up an Ottawa/Macdonald-Cartier International Airport rental car and take your journey in whatever direction you like. Compare offers from Routes Car Rentals, Alamo and Budget.
Don't pay more than you need to. Booking your ride two weeks ahead of your arrival at YOW will help you stay within budget.
Ottawa/Macdonald-Cartier International Airport is located at 50 Airport Road.

Best time to go to Ottawa

Before you book your flights from London to London, consider which time of year works best for you. Peak season in London offers a lively atmosphere and plenty of things to do, while the off-season means you'll get cheaper deals on hotels and smaller crowds.
The warmest month in Ottawa is July, with temperatures ranging between 13ºC (55ºF) and 27ºC (81ºF). Lock in your London to Ottawa ticket then if this is the type of weather you enjoy.
Search for cheap flights from London to Ottawa in January if you'd rather travel during cooler conditions. Temperatures are at their lowest then, ranging between -19ºC (-2ºF) and -2ºC (28ºF) on average.

More about Ottawa

Start your Ottawa trip off on the right foot by choosing the perfect place to stay. Once you've booked your flight from London to Ottawa, check out our selection of accommodation options including:
There are so many things to explore in this city it can be difficult to know where to start. Parliament Hill, Rideau Canal and National Gallery of Canada are top sights which should feature on any well-planned Ottawa itinerary.

Explore more of Canada

You've seen Ottawa, now it's time to discover more of Canada. Journey about 354 kilometres south-west to Toronto to tick off its top sights. From CN Tower to Royal Ontario Museum and Go Tours Canada - Distillery District, you'll have a packed itinerary ahead.
Montreal is another essential stop in Canada and is around 153 kilometres east of Ottawa. No trip is complete without dropping by Mount Royal Park, Montreal Botanical Garden and Saint Joseph's Oratory of Mount Royal.