Cheapest return flights from Seattle to Ljubljana in May from $693

AirHint found the following cheapest return flights from Seattle (SEA) to Ljubljana (LJU) in May 2026 (see full year).

Return flights

05 May - 12 May Turkish Airlines
04 May - 11 May Turkish Airlines
01 May - 08 May Turkish Airlines
10 May - 17 May Turkish Airlines
02 May - 09 May Turkish Airlines
09 May - 16 May Turkish Airlines
03 May - 10 May Delta
11 May - 18 May Lufthansa
26 May - 02 Jun British Airways
22 May - 29 May Turkish Airlines
24 May - 31 May British Airways
25 May - 01 Jun Turkish Airlines

Also check the deals for one-way flights from Seattle to Ljubljana in May.

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