AirHint found the following cheapest return flights from Newburgh (SWF) to London (STN) in August 2025 (see full year).

Return flights

13 Aug - 21 Aug	Fly Play
05 Aug - 12 Aug	Fly Play
13 Aug - 20 Aug	Fly Play
20 Aug - 26 Aug	Fly Play
05 Aug - 21 Aug	Fly Play
05 Aug - 18 Aug	Fly Play
12 Aug - 20 Aug	Fly Play
20 Aug - 28 Aug	Fly Play
19 Aug - 28 Aug	Fly Play
09 Aug - 18 Aug	Fly Play
26 Aug - 01 Sep	Fly Play
05 Aug - 01 Sep	Fly Play
20 Aug - 01 Sep	Fly Play
21 Aug - 01 Sep	Fly Play
23 Aug - 01 Sep	Fly Play
25 Aug - 01 Sep	Fly Play
16 Aug - 01 Sep	Fly Play

Also check the deals for one-way flights from Newburgh to London in August.

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 Newburgh to London in August from $523

Return flights