Cheapest return flights from Denver to Lisbon in January from $629

Best time to book flights for Denver (DEN) to Lisbon (LIS) flights at AirHint

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

Return flights

06 Jan - 13 Jan Air Canada
13 Jan - 20 Jan Air Canada
07 Jan - 14 Jan KLM
14 Jan - 21 Jan Air France
05 Jan - 12 Jan Finnair
12 Jan - 19 Jan Finnair
19 Jan - 26 Jan Finnair
08 Jan - 15 Jan Air Canada
15 Jan - 22 Jan Air Canada
09 Jan - 16 Jan KLM

Also check the deals for one-way flights from Denver to Lisbon in January.

Skyscanner

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.

Book a cheap hotel in Lisbon

Cheap car rent in Lisbon