AirHint found the following cheapest return flights from Oslo (OSL) to Istanbul (IST)
in May 2025 (see full year ).
Return flights
15 May
- 19 May
Pegasus Airlines
130 €
direct
01 May
- 05 May
Pegasus Airlines
130 €
direct
11 May
- 18 May
Norwegian
137 €
direct
07 May
- 12 May
Pegasus Airlines
137 €
direct
04 May
- 07 May
Norwegian
138 €
direct
11 May
- 15 Jun
Norwegian
145 €
direct
05 May
- 13 May
Ryanair
158 €
04 May
- 21 May
Norwegian
164 €
direct
11 May
- 21 May
Norwegian
164 €
direct
25 May
- 11 Jun
Norwegian
164 €
direct
01 May
- 04 May
Pegasus Airlines
167 €
direct
21 May
- 04 Jun
Norwegian
173 €
direct
04 May
- 11 May
Norwegian
180 €
direct
25 May
- 04 Jun
Norwegian
199 €
direct
21 May
- 08 Jun
Norwegian
208 €
direct
25 May
- 08 Jun
Norwegian
235 €
direct
21 May
- 01 Jun
Norwegian
244 €
direct
25 May
- 01 Jun
Norwegian
270 €
direct
Also check the deals for one-way flights from Oslo 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.