Cheapest return flights from Denver to Lisbon in April from $589

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 April 2025 (see full year).

Return flights

08 Apr - 18 Apr Turkish Airlines
20 Apr - 30 Apr Turkish Airlines
19 Apr - 26 Apr Turkish Airlines
01 Apr - 09 Apr Icelandair
03 Apr - 11 Apr Turkish Airlines
06 Apr - 14 Apr Turkish Airlines
08 Apr - 16 Apr Turkish Airlines
10 Apr - 18 Apr Turkish Airlines
13 Apr - 21 Apr Turkish Airlines
15 Apr - 23 Apr Turkish Airlines
24 Apr - 02 May Turkish Airlines
27 Apr - 05 May Turkish Airlines
29 Apr - 07 May Turkish Airlines
28 Apr - 06 May Aer Lingus
29 Apr - 06 May Icelandair
28 Apr - 05 May Icelandair
25 Apr - 03 May Icelandair
25 Apr - 04 May Icelandair
23 Apr - 01 May British Airways
24 Apr - 01 May Icelandair

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

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