RyanairDepart14:30
Tue 1 DecSTN → YOW
16h 15m · 3 stops
£323one way, per person
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- Cheapest fare
- £323
- Cheapest month
- December
- Direct flights
- Not recently
- Quickest trip
- 12h 55m
Ryanair · Tue 1 Dec
from £323
Usually 1+ stop
5,360 km
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Cheapest month to fly from London to Ottawa
Lowest one-way fare per person in each month. Choose a month to see every date.
Cheapest dates in December 2026
The lowest fares we've seen for each day, cheapest first.
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Getting around
About flights from London to Ottawa
London (LON) and Ottawa (YOW) are about 5,360 km apart. We haven't seen direct fares on this route recently, so expect at least one stop; the quickest journey we've seen takes about 12h 55m. Over the next few months, one-way fares start from £323, and December 2026 is currently the cheapest month to fly.
These prices come from searches travellers made in the last 48 hours, so they move quickly. If you see a good fare, it's worth booking soon. FlightsExp is free to use: you book directly with our travel partner.
Frequently asked questions
How much is a flight from London to Ottawa?
The cheapest one-way fare we've seen recently is £323 with Ryanair, departing Tuesday, 1 December 2026. Over the coming months, the lowest fare in each month ranges from £323 to £376.
What is the cheapest month to fly from London to Ottawa?
December 2026 currently has the lowest fares, from £323 one way.
Are there direct flights from London to Ottawa?
We haven't seen direct fares recently, so most journeys include at least one stop.
How long is the flight from London to Ottawa?
The quickest journey we've seen takes about 12h 55m. London and Ottawa are around 5,360 km apart.
Which airlines fly from London to Ottawa?
Recent fares on this route were with WestJet and Ryanair.
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