Cheapest return flights from Denver to Lisbon in July from $769

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 July 2025 (see full year).

Return flights

05 Jul - 19 Jul Icelandair
14 Jul - 25 Jul Icelandair
25 Jul - 04 Aug Icelandair
02 Jul - 09 Jul British Airways
23 Jul - 30 Jul British Airways
29 Jul - 05 Aug British Airways
30 Jul - 06 Aug British Airways
04 Jul - 11 Jul Icelandair
24 Jul - 31 Jul Turkish Airlines
31 Jul - 07 Aug Turkish Airlines
22 Jul - 29 Jul Turkish Airlines
09 Jul - 16 Jul Air Canada
16 Jul - 23 Jul Frontier Airlines
09 Jul - 12 Jul Icelandair
28 Jul - 04 Aug British Airways
25 Jul - 01 Aug United
27 Jul - 03 Aug Air Canada

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

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.

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