Cheap flights from Denver to Lisbon

View AU$978 flight on Fri, 29 Aug. 2025Opens in a new window

Popular airlines from Denver to Lisbon

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Cheap Flights from Denver (DEN) to Lisbon (LIS)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

Aer Lingus
Fri, 29 Aug. - Wed, 10 Sep.
DEN
Denver
LIS
Lisbon
AU$1,105 Return, found 5 days ago
AU$1,105
Return
found 5 days ago
Select Aer Lingus flight, departing Fri, 29 Aug. from Denver to Lisbon, returning Wed, 10 Sep., priced at AU$1,105 found 5 days ago
United
Fri, 29 Aug. - Wed, 10 Sep.
DEN
Denver
LIS
Lisbon
AU$1,503 Return, found 5 days ago
AU$1,503
Return
found 5 days ago
Select United flight, departing Fri, 29 Aug. from Denver to Lisbon, returning Wed, 10 Sep., priced at AU$1,503 found 5 days ago
Air Canada
Fri, 29 Aug. - Wed, 10 Sep.
DEN
Denver
LIS
Lisbon
AU$1,503 Return, found 5 days ago
AU$1,503
Return
found 5 days ago
Select Air Canada flight, departing Fri, 29 Aug. from Denver to Lisbon, returning Wed, 10 Sep., priced at AU$1,503 found 5 days ago
Swiss International Air Lines
Fri, 29 Aug. - Wed, 10 Sep.
DEN
Denver
LIS
Lisbon
AU$1,564 Return, found 5 days ago
AU$1,564
Return
found 5 days ago
Select Swiss International Air Lines flight, departing Fri, 29 Aug. from Denver to Lisbon, returning Wed, 10 Sep., priced at AU$1,564 found 5 days ago
Lufthansa
Fri, 29 Aug. - Wed, 10 Sep.
DEN
Denver
LIS
Lisbon
AU$1,717 Return, found 5 days ago
AU$1,717
Return
found 5 days ago
Select Lufthansa flight, departing Fri, 29 Aug. from Denver to Lisbon, returning Wed, 10 Sep., priced at AU$1,717 found 5 days ago
Delta
Fri, 29 Aug. - Wed, 10 Sep.
DEN
Denver
LIS
Lisbon
AU$1,913 Return, found 5 days ago
AU$1,913
Return
found 5 days ago
Select Delta flight, departing Fri, 29 Aug. from Denver to Lisbon, returning Wed, 10 Sep., priced at AU$1,913 found 5 days ago
American Airlines
Fri, 29 Aug. - Wed, 10 Sep.
DEN
Denver
LIS
Lisbon
AU$2,204 Return, found 5 days ago
AU$2,204
Return
found 5 days ago
Select American Airlines flight, departing Fri, 29 Aug. from Denver to Lisbon, returning Wed, 10 Sep., priced at AU$2,204 found 5 days ago
Brussels Airlines
Fri, 29 Aug. - Wed, 10 Sep.
DEN
Denver
LIS
Lisbon
AU$2,216 Return, found 5 days ago
AU$2,216
Return
found 5 days ago
Select Brussels Airlines flight, departing Fri, 29 Aug. from Denver to Lisbon, returning Wed, 10 Sep., priced at AU$2,216 found 5 days ago
Scandinavian Airlines
Fri, 29 Aug. - Wed, 10 Sep.
DEN
Denver
LIS
Lisbon
AU$2,426 Return, found 5 days ago
AU$2,426
Return
found 5 days ago
Select Scandinavian Airlines flight, departing Fri, 29 Aug. from Denver to Lisbon, returning Wed, 10 Sep., priced at AU$2,426 found 5 days ago
British Airways
Fri, 29 Aug. - Wed, 10 Sep.
DEN
Denver
LIS
Lisbon
AU$2,532 Return, found 5 days ago
AU$2,532
Return
found 5 days ago
Select British Airways flight, departing Fri, 29 Aug. from Denver to Lisbon, returning Wed, 10 Sep., priced at AU$2,532 found 5 days ago
TAP Portugal
Fri, 29 Aug. - Wed, 10 Sep.
DEN
Denver
LIS
Lisbon
AU$2,678 Return, found 5 days ago
AU$2,678
Return
found 5 days ago
Select TAP Portugal flight, departing Fri, 29 Aug. from Denver to Lisbon, returning Wed, 10 Sep., priced at AU$2,678 found 5 days ago

Find the cheapest month to fly from Denver (DEN) to Lisbon (LIS)

November is typically the cheapest month to fly

From AU$738 - AU$1,956 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.