Cheapest return flights from Denver to Barcelona in April from $646

Best time to book flights for Denver (DEN) to Barcelona (BCN) flights at AirHint

AirHint found the following cheapest return flights from Denver (DEN) to Barcelona (BCN) in April 2025 (see full year).

Return flights

23 Apr - 07 May Lufthansa
24 Apr - 05 May Frontier Airlines
24 Apr - 28 Apr Frontier Airlines
20 Apr - 26 Apr Frontier Airlines
17 Apr - 24 Apr Icelandair
20 Apr - 18 May Frontier Airlines
29 Apr - 06 May United
27 Apr - 04 May United
05 Apr - 08 Apr Icelandair
07 Apr - 14 Apr Icelandair
10 Apr - 13 Apr British Airways
06 Apr - 13 Apr Air Canada
15 Apr - 17 Apr Icelandair
06 Apr - 18 Apr Aer Lingus

Also check the deals for one-way flights from Denver to Barcelona in April.

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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.

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