AirHint found the following cheapest return flights from Montreal (YUL) to Porto (OPO)
in May 2025 (see full year ).
Return flights
16 May
- 23 May
FrenchBee
$ 534
12 May
- 19 May
FrenchBee
$ 545
31 May
- 15 Jun
Porter Airlines (Canada) Ltd
$ 548
direct
11 May
- 21 May
Porter Airlines (Canada) Ltd
$ 550
14 May
- 21 May
Porter Airlines (Canada) Ltd
$ 550
18 May
- 25 May
Porter Airlines (Canada) Ltd
$ 550
21 May
- 28 May
Porter Airlines (Canada) Ltd
$ 550
27 May
- 03 Jun
Porter Airlines (Canada) Ltd
$ 550
19 May
- 26 May
Porter Airlines (Canada) Ltd
$ 551
09 May
- 16 May
FrenchBee
$ 560
07 May
- 14 May
Porter Airlines (Canada) Ltd
$ 564
11 May
- 18 May
Porter Airlines (Canada) Ltd
$ 564
19 May
- 08 Jun
Porter Airlines (Canada) Ltd
$ 564
28 May
- 04 Jun
Porter Airlines (Canada) Ltd
$ 564
30 May
- 06 Jun
Porter Airlines (Canada) Ltd
$ 564
31 May
- 07 Jun
Porter Airlines (Canada) Ltd
$ 564
26 May
- 02 Jun
Porter Airlines (Canada) Ltd
$ 565
20 May
- 02 Jun
Porter Airlines (Canada) Ltd
$ 579
25 May
- 08 Jun
Porter Airlines (Canada) Ltd
$ 579
29 May
- 05 Jun
Porter Airlines (Canada) Ltd
$ 579
Also check the deals for one-way flights from Montreal to Porto 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.
