Cheapest return flights from London to Prague in September from $142

AirHint found the following cheapest return flights from London (LHR) to Prague (PRG) in September 2026 (see full year).

Return flights

02 Sep - 23 Sep British Airways direct
22 Sep - 24 Sep British Airways direct
24 Sep - 01 Oct British Airways direct
19 Sep - 21 Sep British Airways direct
03 Sep - 07 Sep British Airways direct
12 Sep - 14 Sep British Airways direct
10 Sep - 19 Sep British Airways direct
02 Sep - 05 Sep SWISS
03 Sep - 06 Sep SWISS
04 Sep - 06 Sep SWISS
06 Sep - 09 Sep SWISS

Also check the deals for one-way flights from London to Prague in September.

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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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