AirHint found the following cheapest return flights from London (LGW) to St. John's (YYT) in September 2025 (see full year).

Return flights

01 Sep - 10 Sep	WestJet	direct
15 Sep - 19 Sep	WestJet	direct
03 Sep - 10 Sep	WestJet	direct
13 Sep - 26 Sep	WestJet	direct
17 Sep - 08 Oct	WestJet	direct
20 Sep - 04 Oct	WestJet	direct
27 Sep - 08 Oct	WestJet	direct
01 Sep - 08 Sep	WestJet	direct
10 Sep - 17 Sep	WestJet	direct
27 Sep - 03 Oct	WestJet	direct
06 Sep - 12 Sep	WestJet	direct
10 Sep - 15 Sep	WestJet	direct
10 Sep - 15 Oct	WestJet	direct
01 Sep - 15 Sep	WestJet	direct
24 Sep - 20 Oct	WestJet	direct
17 Sep - 20 Oct	WestJet	direct
12 Sep - 19 Sep	WestJet	direct

Also check the deals for one-way flights from London to St. John's in September.

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.

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Cheapest return flights from London to St. John's in September from 340€

Return flights