Cheapest one-way flights from Ottawa to London in July from $509
AirHint found the following cheapest one-way flights from Ottawa (YOW) to London (LHR) in July 2025 (see full year).
One-Way flights
| 26 Jul | Air Transat | ||
| 14 Jul | WestJet | ||
| 18 Jul | Porter Airlines (Canada) Ltd | ||
| 10 Jul | WestJet | ||
| 19 Jul | WestJet | ||
| 14 Jul | Air Canada | direct | |
| 19 Jul | Air Canada | direct | |
| 10 Jul | Air Canada | direct | |
| 26 Jul | Air Canada | direct |
Also check the deals for return flights from Ottawa to London in July.
The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.
