Cheapest return flights from London to Basel in September from $125

AirHint found the following cheapest return flights from London (LHR) to Basel (BSL) in September 2025 (see full year).

Return flights

26 Sep - 30 Sep British Airways direct
27 Sep - 01 Oct British Airways direct
27 Sep - 30 Sep British Airways direct
27 Sep - 06 Oct British Airways direct
26 Sep - 01 Oct British Airways direct
19 Sep - 21 Sep British Airways direct
19 Sep - 23 Sep British Airways direct
20 Sep - 25 Sep British Airways direct
18 Sep - 21 Sep British Airways direct
24 Sep - 30 Sep British Airways direct
20 Sep - 21 Sep British Airways direct
24 Sep - 01 Oct British Airways direct
26 Sep - 28 Sep British Airways direct
30 Sep - 07 Oct British Airways direct
29 Sep - 01 Oct British Airways direct
18 Sep - 22 Sep British Airways direct
30 Sep - 01 Oct British Airways direct
27 Sep - 02 Oct British Airways direct
29 Sep - 02 Oct British Airways direct
30 Sep - 02 Oct British Airways direct

Also check the deals for one-way flights from London to Basel 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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