AirHint found the following cheapest return flights from London (LON) to Basel (BSL) in April 2026 (see full year).

Return flights

04 Apr - 11 Apr	easyJet	direct
07 Apr - 12 Apr	easyJet	direct
03 Apr - 10 Apr	easyJet	direct
03 Apr - 06 Apr	easyJet	direct
06 Apr - 10 Apr	easyJet	direct
24 Apr - 26 Apr	KLM
24 Apr - 27 Apr	KLM
17 Apr - 21 Apr	KLM

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

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 Basel in April from 180€

Return flights