AirHint found the following cheapest return flights from Seattle (SEA) to Istanbul (IST)
in January 2025 (see full year ).
Return flights
13 Jan
- 19 Feb
Frontier Airlines
635 €
28 Jan
- 13 Feb
Delta
647 €
27 Jan
- 12 Feb
Delta
647 €
13 Jan
- 20 Jan
Frontier Airlines
666 €
13 Jan
- 10 Feb
Frontier Airlines
695 €
26 Jan
- 08 Feb
Delta
705 €
24 Jan
- 10 Feb
WestJet
706 €
06 Jan
- 22 Jan
Spirit Airlines
707 €
13 Jan
- 15 Feb
Frontier Airlines
730 €
08 Jan
- 17 Feb
Spirit Airlines
733 €
15 Jan
- 01 Feb
Icelandair
754 €
23 Jan
- 28 Jan
WestJet
759 €
11 Jan
- 20 Jan
Alaska Airlines
766 €
16 Jan
- 27 Jan
WestJet
772 €
12 Jan
- 19 Jan
Spirit Airlines
819 €
08 Jan
- 15 Feb
Spirit Airlines
845 €
10 Jan
- 23 Jan
WestJet
968 €
23 Jan
- 28 Jan
Turkish Airlines
1060 €
direct
16 Jan
- 27 Jan
Turkish Airlines
1060 €
direct
10 Jan
- 23 Jan
Turkish Airlines
1060 €
direct
Also check the deals for one-way flights from Seattle to Istanbul in January .
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.