AirHint found the following cheapest return flights from Denver (DEN) to Lisbon (LIS) in November 2025 (see full year).

Return flights

16 Nov - 23 Nov	Icelandair
09 Nov - 16 Nov	Icelandair
11 Nov - 18 Nov	United
10 Nov - 17 Nov	British Airways
27 Nov - 04 Dec	United
27 Nov - 05 Dec	Air Canada
28 Nov - 05 Dec	Air France
07 Nov - 14 Nov	United
08 Nov - 15 Nov	Air France
20 Nov - 27 Nov	United

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

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 Lisbon in November from $580

Return flights