AirHint found the following cheapest return flights from Riga (RIX) to Istanbul (IST) in May 2026 (see full year).

Return flights

15 May - 20 May	Norwegian Air Sweden AOC
15 May - 20 May	airBaltic	direct
03 May - 07 May	airBaltic	direct
04 May - 08 May	airBaltic	direct
01 May - 03 May	Norwegian Air Sweden AOC
31 May - 07 Jun	airBaltic
31 May - 07 Jun	airBaltic	direct
09 May - 12 May	LOT
14 May - 17 May	airBaltic	direct
10 May - 16 May	airBaltic
01 May - 03 May	Turkish Airlines	direct
09 May - 12 May	Turkish Airlines	direct

Also check the deals for one-way flights from Riga to Istanbul 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 Riga to Istanbul in May from 159€

Return flights