Cheapest return DEN–FRA flights, June

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

Return flights

03 Jun - 17 Jun Frontier Airlines
08 Jun - 23 Jun jetBlue
03 Jun - 11 Jun Alaska Airlines
05 Jun - 14 Jun WestJet
17 Jun - 24 Jun Frontier Airlines
01 Jun - 09 Jul Frontier Airlines
30 Jun - 09 Jul Condor
04 Jun - 05 Jul Frontier Airlines
04 Jun - 29 Jun Frontier Airlines
08 Jun - 21 Jun Frontier Airlines
25 Jun - 09 Jul Frontier Airlines
22 Jun - 06 Jul Frontier Airlines
27 Jun - 06 Jul Frontier Airlines
19 Jun - 22 Jun Frontier Airlines
22 Jun - 06 Jul Lufthansa direct
27 Jun - 06 Jul Lufthansa direct
27 Jun - 12 Jul Lufthansa direct
04 Jun - 05 Jul Lufthansa direct
04 Jun - 29 Jun Lufthansa direct

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

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