Cheap flights from the United Kingdom to Ottawa from £237

In general, June is the cheapest month to fly from United Kingdom to Ottawa. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £456. If you aren’t able to travel during the month of June, then book flights to Ottawa from United Kingdom during May instead. Flights to Ottawa in May, while not as cheap as those in June, still average around £479.

The cheapest day to depart on your flight to Ottawa is on a Friday when prices can be found for as low as £523. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Wednesday because tickets tend to average around £611. These prices are subject to change though, so be sure to set up a Price Alert for flights to Ottawa.

Flying to Ottawa from United Kingdom in the morning is the least expensive time of day to depart. momondo users have found prices as low as £544 when looking at flights departing in the morning. At midday is when there is more demand to fly to Ottawa, so prices are often more expensive at around £608 per ticket.

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

You are more likely to see cheaper flights to Ottawa from United Kingdom when booking weeks ahead of your departure date. In general, you can expect to find flights to Ottawa for around £557 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ottawa from United Kingdom for as low as £457 on momondo.

There are 3 cabin classes available to choose from on United Kingdom to Ottawa flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

KLM, Air France, and United Airlines are the most popular carriers operating from United Kingdom to Ottawa

Air Canada, Lufthansa and Air Transat are the top three most popular airlines that fly to Ottawa from United Kingdom according to our data. Air Canada is the first choice among our users, with 71% of people opting to fly with this airline when travelling to Ottawa. Keep in mind that there are 10 different airlines that fly to Ottawa on a routine basis, so you have a few additional options to choose from.

Historically, on average around 11% of flights between United Kingdom and Ottawa have experienced a delay on any given week. The average delay length over the past 12 months has been 192 minutes.

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights departing in the morning have, in the past, seen delays more frequently in comparison.

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

According to our data, Air Canada have had the fewest delays on this route over the last 12 months, with about 11% of their flights experiencing any sort of delay.

As of October 2026, 2 flights take off from United Kingdom and land in Ottawa each day. The most common flight departure time for this route is 14:00, with 87% of daily flights taking off in the afternoon.

The number of flights available between United Kingdom and Ottawa is 16 per week as of October 2026. The most frequent departure day is Wed, with 44% of weekly flights leaving on this day.