Cheapest return flights from Denver to Lisbon in June from $871

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 June 2025 (see full year).

Return flights

07 Jun - 15 Jun WestJet
10 Jun - 18 Jun WestJet
23 Jun - 25 Jun Frontier Airlines
25 Jun - 08 Jul Air Canada
12 Jun - 22 Jun WestJet
25 Jun - 29 Jul Air Canada
09 Jun - 23 Jun Frontier Airlines
01 Jun - 07 Jun Air Canada
13 Jun - 21 Jun Air Canada

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

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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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