AirHint found the following cheapest return flights from Ottawa (YOW) to London (LGW)
in May 2025 (see full year ).
Return flights
21 May
- 29 May
Air Transat
$ 702
18 May
- 03 Jun
Air Transat
$ 702
19 May
- 04 Jun
Air Transat
$ 702
28 May
- 16 Jun
Air Transat
$ 706
27 May
- 09 Jun
Air Transat
$ 706
27 May
- 10 Jun
Air Transat
$ 706
06 May
- 13 May
Air Transat
$ 717
01 May
- 15 May
Air Transat
$ 717
30 May
- 06 Jun
Air Transat
$ 720
29 May
- 05 Jun
Porter Airlines (Canada) Ltd
$ 728
07 May
- 14 May
Air Transat
$ 731
23 May
- 31 May
Porter Airlines (Canada) Ltd
$ 760
04 May
- 31 May
Porter Airlines (Canada) Ltd
$ 760
15 May
- 24 May
Porter Airlines (Canada) Ltd
$ 760
01 May
- 10 May
Porter Airlines (Canada) Ltd
$ 774
02 May
- 23 May
Porter Airlines (Canada) Ltd
$ 774
16 May
- 31 May
Porter Airlines (Canada) Ltd
$ 806
24 May
- 14 Jun
Porter Airlines (Canada) Ltd
$ 837
Also check the deals for one-way flights from Ottawa to London in May .
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.
