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Cheap flights from Ottawa to London

3 nonstop flights a week. Operated by Air Canada, about 6h 40m in the air, 3,332 mi (5,362 km). Tickets from $536, nonstop from $795.

Flights from Ottawa to London

Pick a departure date to see flights and seller prices

We search agencies and airlines for your day: nonstop and connecting flights, baggage, departure and arrival times.

Prices by day: Ottawa to London

Lowest one-way price in dollars from recent searches, cheap days in green. Press a day to see flights and exact prices.

Filters

Best fares from Ottawa to London

Lowest one-way prices found by recent searches for the next 120 days; press a card to search that date

Cheapest one-way $496 11 November 2026, with a connection Cheapest nonstop $795 12 November 2026, Air Canada Cheapest in the next 7 days $496 Today Cheapest weekend departure $536 Sat, 26 December 2026 Cheapest month November 2026 tickets from $496

Ottawa to London at a glance

flight time, from 6h 35m to 6h 45m
6h 40m
straight-line distance
3,332 mi (5,362 km)
flights a week
3
next flight
12 November
first and last departure
18:50 - 21:40
lowest price, with a connection, 12 November
$536
lowest nonstop price
$795
airline
1

Ottawa to London ticket prices by month

Lowest one-way fare found by recent searches

Cheapest month: November 2026, tickets from $496. Prices come from searches over the last few days; check the search for your exact date.

The most expensive month is December 2026: from $542. The average across months is $519.

Ottawa to London flight schedule

3 flights a week, 4 seasonal or one-off. Departure and arrival times are local.

FlightDepartsArrivesDurationDaysAircraft
AC 888
Air Canada
18:50 Ottawa/Macdonald-Cartier International
06:30 London Heathrow, terminal 2
6h 40m
Mon, Sat
Airbus A330-300
AC 888
Air Canada
21:40 Ottawa/Macdonald-Cartier International
09:20 London Heathrow, terminal 2
6h 40m
Thu
Airbus A330-300

Seasonal and one-off flights

Not operating in the next two weeks. The first of them is on 16 December.

FlightDepartsArrivesDurationDaysAircraft
AC 888
Air Canada
09:15 Ottawa/Macdonald-Cartier International
21:00 London Heathrow, terminal 2
6h 45m
Seasonal
Airbus A320
AC 888
Air Canada
10:15 Ottawa/Macdonald-Cartier International
21:00 London Heathrow, terminal 2
6h 45m
Seasonal
Airbus A320
AC 888
Air Canada
18:55 Ottawa/Macdonald-Cartier International
06:30 London Heathrow, terminal 2
6h 35m
Seasonal
Airbus A330-300
AC 888
Air Canada
21:00 Ottawa/Macdonald-Cartier International
08:35 London Heathrow, terminal 2
6h 35m
Seasonal
Airbus A330-300

Days of the week are taken from the schedule for the next 14 days; schedules change by season. London is 5 hours ahead of Ottawa. The search shows seat availability and the price for your date.

Airlines flying Ottawa to London

Flights a week by schedule and the cheapest nonstop fare of each airline found by recent searches

Air Canada3 a week

Airports

Where flights from Ottawa to London depart and land

Departure from Ottawa

Ottawa/Macdonald-Cartier International YOW

3 flights a week, 6 mi (10 km) from the city centre

About the airport

Arrival in London

London Heathrow LHR

3 flights a week, terminal 2, 14 mi (23 km) from the city centre

About the airport

When to visit London

Weather by month

Best time to visit: May, June, July, August and September, +18° to +23° by day. In November it is +11° by day and +6° at night, with 11 rainy days.

Jan
+7° +2° 12 days
Feb
+10° +3° 11 days
Mar
+12° +4° 12 days
Apr
+14° +5° 8 days
May
+18° +9° 13 days
Jun
+22° +12° 8 days
Jul
+23° +14° 13 days
Aug
+23° +14° 7 days
Sep
+20° +12° 12 days
Oct
+16° +10° 13 days
Nov
+11° +6° 11 days
Dec
+9° +5° 12 days

Daytime and night temperatures in °C, rainy days. Months with the most comfortable weather are in green. Long-term averages.

Frequently asked questions

How long is the flight from Ottawa to London?
A nonstop flight takes 6 hours 40 minutes on average, from 6h 35m to 6h 45m depending on the flight.
How far is London from Ottawa?
3,332 mi (5,362 km) in a straight line between the cities.
Which airlines fly nonstop from Ottawa to London?
Air Canada (3 a week).
How many flights a day are there from Ottawa to London?
There are 3 a week, about 0.4 a day on average.
When are the first and last flights from Ottawa to London?
The first departure is at 18:50 (AC888), the last at 21:40 (AC888). Local time.
What is the cheapest month to fly from Ottawa to London?
November 2026: tickets from $496. The most expensive is December 2026, from $542.
What is the cheapest upcoming date to fly from Ottawa to London?
11 November 2026 (Wednesday): from $496 one way, with a connection, by recent searches. The search shows the price for your dates.
Which airline is the cheapest from Ottawa to London?
Air Canada: nonstop tickets from $795 on 12 November by recent searches. Prices change daily, so compare the sellers in the search.
What is the time difference between Ottawa and London?
London is 5 hours ahead of Ottawa. Schedule times on this page are local to each airport.
Which Ottawa airport do flights to London leave from?
Ottawa/Macdonald-Cartier International (3 a week).