AirHint found the following cheapest return flights from Denver (DEN) to Barcelona (BCN) in January 2026 (see full year).

Return flights

13 Jan - 27 Jan	Iberia
11 Jan - 23 Jan	British Airways
16 Jan - 30 Jan	British Airways
18 Jan - 21 Jan	British Airways
06 Jan - 31 Jan	Lufthansa
05 Jan - 31 Jan	Lufthansa
07 Jan - 31 Jan	Lufthansa
01 Jan - 08 Jan	Lufthansa
03 Jan - 24 Jan	Turkish Airlines

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

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Cheapest return flights from Denver to Barcelona in January from 370€

Return flights