Cheapest return flights from Denver to Ljubljana in June from $1269

AirHint found the following cheapest return flights from Denver (DEN) to Ljubljana (LJU) in June 2026 (see full year).

Return flights

07 Jun - 15 Jun jetBlue
10 Jun - 17 Jun WestJet
11 Jun - 18 Jun Icelandair
12 Jun - 20 Jun Icelandair
09 Jun - 16 Jun Turkish Airlines
13 Jun - 20 Jun Turkish Airlines
09 Jun - 17 Jun Turkish Airlines
13 Jun - 21 Jun WestJet
10 Jun - 18 Jun WestJet
08 Jun - 16 Jun Lufthansa

Also check the deals for one-way flights from Denver to Ljubljana in June.

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