AirHint found the following cheapest return flights from Istanbul (IST) to Budapest (BUD) in August 2025 (see full year).

Return flights

31 Aug - 10 Sep	Air Serbia
31 Aug - 03 Sep	Air Serbia
23 Aug - 29 Aug	Turkish Airlines	direct
25 Aug - 24 Sep	Fly One
25 Aug - 25 Sep	Fly One
27 Aug - 03 Sep	AJet
31 Aug - 31 Aug	Air Serbia
27 Aug - 05 Sep	Pegasus Airlines
26 Aug - 03 Sep	Pegasus Airlines
27 Aug - 03 Sep	Wizz Air	direct
27 Aug - 29 Aug	AJet
25 Aug - 28 Aug	Fly One
25 Aug - 29 Aug	Fly One
25 Aug - 27 Aug	Fly One
25 Aug - 07 Sep	Fly One
30 Aug - 03 Sep	Pegasus Airlines
23 Aug - 27 Aug	Pegasus Airlines
21 Aug - 29 Aug	Wizz Air	direct
28 Aug - 30 Aug	Pegasus Airlines
27 Aug - 28 Aug	Pegasus Airlines

Also check the deals for one-way flights from Istanbul to Budapest in August.

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.

Book a cheap hotel in Budapest

Cheap car rent in Budapest

Cheapest return flights from Istanbul to Budapest in August from $164

Return flights