Question 1

How many flights depart from Ottawa to London Heathrow Airport on average per week?

Accepted Answer

21 flights are operational weekly from Ottawa to London Heathrow Airport as of February 2026. The most popular departure day for this route is Fri, with 38% of flights per week taking off on this day.

Question 2

What is the cheapest month to fly to London Heathrow Airport?

Accepted Answer

In general, November is the cheapest month to fly from Ottawa to London Heathrow Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £499. The month of January is another great option to travel to London Heathrow Airport, with average flight prices from Ottawa averaging around £520.

Question 3

How far in advance should I book a flight to London Heathrow Airport?

Accepted Answer

You are more likely to see cheaper flights to London Heathrow Airport from Ottawa when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around £560 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from Ottawa for as low as £527 on momondo.

Question 4

What is the cheapest airline that flies from Ottawa to London Heathrow?

Accepted Answer

WestJet is the most popular carrier operating from Ottawa to London Heathrow

Question 5

How often are flights from Ottawa to London delayed?

Accepted Answer

Historically, on average around 22% of flights between Ottawa and London have experienced a delay on any given week. The average delay length over the past 12 months has been 136 minutes.

Question 6

How many flights depart from Ottawa to London Heathrow Airport on average per day?

Accepted Answer

3 flights are operational daily from Ottawa to London Heathrow Airport as of February 2026. The most popular departure time for this route is 21:00, with 100% of flights per day taking off in the evening.

Question 7

How have Ottawa to London Heathrow Airport flight prices changed over time?

Accepted Answer

As of February 2026, prices for Ottawa to London Heathrow Airport flights are approximately 38% cheaper when compared to flights at the same time last year.

Question 8

Can stopping save me money on Ottawa to London Heathrow Airport flights?

Accepted Answer

You could potentially save up to 52% on your flight if you consider stops on a Ottawa to London Heathrow Airport flight.

Question 9

Which airline has the best punctuality record on Ottawa to London flights?

Accepted Answer

According to our data, Air Canada have had the fewest delays on this route over the last 12 months, with about 22% of their flights experiencing any sort of delay.

Question 10

Which airlines fly to London Heathrow Airport?

Accepted Answer

Air Canada, British Airways and Lufthansa are the top three most popular airlines that fly to London Heathrow Airport from Ottawa according to our data. Air Canada is the first choice among our users, with 83% of people opting to fly with this airline when travelling to London Heathrow Airport. Keep in mind that there are 3 different airlines that fly to London Heathrow Airport on a routine basis, so you have a few additional options to choose from.

Question 11

What is the cheapest time of day to depart on your flight to London Heathrow Airport?

Accepted Answer

According to our data, the cheapest time of day to fly to London Heathrow Airport is in the evening. momondo users have found flights departing from Ottawa to London Heathrow Airport in the evening for as low as £560. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are £592 on average. Flights to London Heathrow Airport from Ottawa in the afternoon are generally more expensive because this time of day is more convenient for travellers’ schedules.

Question 12

What is the cheapest day to depart on your flight to London Heathrow Airport?

Accepted Answer

On average, the least expensive day to fly to London Heathrow Airport from Ottawa is on a Monday. momondo users have found tickets for Monday departures for as low as £531. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to London Heathrow Airport on Sunday is £978.

Question 13

What cabin class options are available on Ottawa to London Heathrow flights?

Accepted Answer

There are 2 cabin classes available to choose from on Ottawa to London Heathrow flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Question 14

What is the typical price of a round-trip flight between Ottawa and London Heathrow Airport?

Accepted Answer

Prices are currently low for flights on this route.Typical prices usually range from £512 to £616.
The lowest price recently found on this route was £422.

Question 15

What day of the week experiences the fewest flight delays on this route?

Accepted Answer

Monday is statistically the day of the week that experiences the fewest delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

Question 16

What is the cheapest Ottawa to London Heathrow flight route?

Accepted Answer

Fly from Ottawa to London Heathrow for the best Ottawa - London Heathrow flight prices

Question 17

What is the most punctual flight time for Ottawa to London flights?

Accepted Answer

Generally, flights departing in the evening tend to experience fewer delays. Flights departing at night have, in the past, seen delays more frequently in comparison.

Question 18

When did momondo last update prices for flights from Ottawa Airport to London Heathrow Airport?

Accepted Answer

Prices for flights from Ottawa Airport to London Heathrow Airport are updated daily.

Question 19

How many operators does momondo search for flights from Ottawa Airport to London Heathrow Airport?

Accepted Answer

There is 1 operator available for flights from Ottawa Airport to London Heathrow Airport as of February 2026.

Question 20

How old do you have to be to fly from Ottawa Airport to London Heathrow Airport?

Accepted Answer

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ottawa Airport to London Heathrow Airport.

Question 21

What documentation or ID do you need to fly to London Heathrow Airport?

Accepted Answer

The travel and health documents you'll need for your trip to London Heathrow Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at London Heathrow Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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Cheap flights from Ottawa to London from £226

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ottawa to London departing on 15/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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How to get the cheapest flight ticket from Ottawa to London Heathrow Airport

What is the typical price of a round-trip flight between Ottawa and London Heathrow Airport?

What is the cheapest month to fly to London Heathrow Airport?

What is the cheapest day to depart on your flight to London Heathrow Airport?

What is the cheapest time of day to depart on your flight to London Heathrow Airport?

What is the cheapest Ottawa to London Heathrow flight route?

Fly from Ottawa to London Heathrow for the best Ottawa - London Heathrow flight prices

How far in advance should I book a flight to London Heathrow Airport?

What cabin class options are available on Ottawa to London Heathrow flights?

There are 2 cabin classes available to choose from on Ottawa to London Heathrow flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Ottawa to London Heathrow Airport flights?

You could potentially save up to 52% on your flight if you consider stops on a Ottawa to London Heathrow Airport flight.

How have Ottawa to London Heathrow Airport flight prices changed over time?

As of February 2026, prices for Ottawa to London Heathrow Airport flights are approximately 38% cheaper when compared to flights at the same time last year.

What is the cheapest airline that flies from Ottawa to London Heathrow?

WestJet is the most popular carrier operating from Ottawa to London Heathrow

Which airlines fly to London Heathrow Airport?

How often are flights from Ottawa to London delayed?

Historically, on average around 22% of flights between Ottawa and London have experienced a delay on any given week. The average delay length over the past 12 months has been 136 minutes.

What is the most punctual flight time for Ottawa to London flights?

Generally, flights departing in the evening tend to experience fewer delays. Flights departing at night have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Monday is statistically the day of the week that experiences the fewest delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on Ottawa to London flights?

According to our data, Air Canada have had the fewest delays on this route over the last 12 months, with about 22% of their flights experiencing any sort of delay.

How many flights depart from Ottawa to London Heathrow Airport on average per day?

3 flights are operational daily from Ottawa to London Heathrow Airport as of February 2026. The most popular departure time for this route is 21:00, with 100% of flights per day taking off in the evening.

How many flights depart from Ottawa to London Heathrow Airport on average per week?

21 flights are operational weekly from Ottawa to London Heathrow Airport as of February 2026. The most popular departure day for this route is Fri, with 38% of flights per week taking off on this day.

When to book flights from Ottawa to London Heathrow Airport

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When did momondo last update prices for flights from Ottawa Airport to London Heathrow Airport?

How many operators does momondo search for flights from Ottawa Airport to London Heathrow Airport?

How old do you have to be to fly from Ottawa Airport to London Heathrow Airport?

What documentation or ID do you need to fly to London Heathrow Airport?

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What is the most popular airline from Ottawa to London Heathrow Airport?

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