Cheap flights from London to Ottawa
from 327 US$
Compare hundreds of airlines London–Ottawa
The cheapest month is usually 2026-10 · 327 US$
See prices for my dates →Live fares from 100+ sites — free, with no hidden fees.
About this route
Compare flights from London to Ottawa, a about 518 km route (around 1h 9m nonstop). We gather live prices from hundreds of airlines and agencies so you can find the cheapest and book on the official site, with no hidden fees. Direct flights are available. Airlines such as Air Canada operate this route.
When to buy and when to fly
Prices by date
Fares found by date — cheapest days in green.
How to get the best price
Airlines on this route
FAQ
What's the cheapest month to fly London to Ottawa?
It's usually 2026-10, from 327 USD. Use the price calendar to compare other dates.
How long is the flight from London to Ottawa?
A nonstop flight takes about 1h 9m and covers around 518 km. Connecting itineraries take longer.
Are there direct flights from London to Ottawa?
Yes, this route has nonstop flights. Filter by "nonstop" to see them.
Which airlines fly from London to Ottawa?
Air Canada operate this route, among others. Compare them all in the results.
When should I book London–Ottawa flights?
As a rule of thumb, booking 3–8 weeks ahead and avoiding weekends and holidays tends to give the best prices. Use the calendar to spot the cheapest dates.
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London → Ottawa · Live fares from 100+ sites — free, with no hidden fees.