AirHint found the following cheapest return flights from Oslo (OSL) to Istanbul (IST) in July 2026 (see full year).

Return flights

13 Jul - 19 Jul	airBaltic
20 Jul - 28 Jul	Air Serbia
15 Jul - 23 Jul	Air Serbia
20 Jul - 23 Jul	Air Serbia
01 Jul - 05 Jul	Norwegian	direct
12 Jul - 15 Jul	Norwegian	direct
03 Jul - 12 Jul	Ryanair
05 Jul - 12 Jul	Norwegian	direct
01 Jul - 12 Jul	Norwegian	direct
22 Jul - 02 Aug	Norwegian	direct
19 Jul - 02 Aug	Norwegian	direct
05 Jul - 15 Jul	Norwegian	direct
15 Jul - 02 Aug	Norwegian	direct

Also check the deals for one-way flights from Oslo to Istanbul in July.

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 Istanbul

Cheap car rent in Istanbul

Cheapest return flights from Oslo to Istanbul in July from 202€

Return flights