AirHint found the following cheapest return flights from Prestwick (PIK) to Bangkok (BKK) in May 2026 (see full year).

Return flights

26 May - 15 Jun	Ryanair
30 May - 15 Jun	Ryanair
27 May - 15 Jun	Ryanair
29 May - 15 Jun	Ryanair
05 May - 12 May	Ryanair
28 May - 15 Jun	Ryanair
06 May - 20 May	Ryanair
31 May - 14 Jun	Ryanair
22 May - 06 Jun	Ryanair
13 May - 20 May	Ryanair
01 May - 08 May	Ryanair
03 May - 17 May	Ryanair
23 May - 06 Jun	Ryanair
09 May - 23 May	Ryanair
01 May - 10 May	Ryanair
23 May - 20 Jun	Ryanair

Also check the deals for one-way flights from Prestwick to Bangkok in May.

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 Prestwick to Bangkok in May from $785

Return flights