Fare Guide
Estimated lowest fares found within 7 days
Cheapest Airline

Cheapest Month
October
Cheapest Day of the Week
Wednesday
Cheapest Airline

The cheapest airline(s) flying from Ottawa to London is Porter Airlines.
Cheapest Month
October
Travel Period: April 2025 - March 2026
The cheapest month(s) to fly from Ottawa to London is October.
Cheapest Day of the Week
Wednesday
The cheapest day(s) of the week to fly from Ottawa to London is Wednesday.
What’s the most popular airline flying from Ottawa to London?
The most popular airline flying from Ottawa to London is Air Canada. Find the latest flight deals on Wego.
How far is London from Ottawa?
The flight distance between Ottawa and London is 5361km. Check all available flights on Wego.