The cheapest times to fly from DEN to LIS are

  • January 1st to March 25th
  • September 3rd to December 16th (except the week of October 22nd)

based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from DEN to LIS is early November. Prices can be as high as $1693 for Sunday flights during early July, or as low as $681 for Tuesday flights around early November.


When to Fly to Lisbon

Flying from Denver, CO (DEN) to Lisbon (LIS) will usually cost between $829 to $1521 per person if booking more than four weeks in advance. On average the very cheapest time to fly is early November with an average ticket price of $902. Due to high demand the most expensive time to fly is early July, with an average price of $1530. Planning your trip to low-cost times can easily save you $628 on economy flights and even more on first-class flights. Generally, any price below $1130 can be considered a good price for a round-trip DEN to LIS flight.

See below for a graph of average weekly prices for the DEN to LIS route. All prices are for round-trip tickets in USD.

DEN to LIS Flight Prices

Compared to other flights, the DEN to LIS flight is slightly more expensive than the average and costs about as much as the average flight leaving from Denver. The average price per mile (for a direct flight) is $0.15, which is far below average.


Flight Prices by Day of the Week

Tuesday is usually the cheapest day to fly to LIS, and Thursday the cheapest day to fly back into DEN. Sundays are the most expensive days to fly out or take a return trip. Selecting flights on the least expensive days could save you up to $96 (8%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Tuesday and returning a week later will cost an average of $1092. Return trip prices are from the LIS to DEN flight, and often highlight the quality of our data in showing the same trend.

Departing Prices by Day

Departure Day Prices

Return Trip Prices by Day

Return Day Prices


Nonstop Flights and Layovers

Travelers looking to fly from DEN to LIS can generally find a 1-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 9 hour 40 minutes may not be realistic.


Flight Hacking DEN to LIS

Flight hacking is when you book two tickets instead of a layover, sometimes with different airlines. You will need to either bring only a carry-on bag (highly recommended) or leave yourself plenty of time to go through security again. Flight hacking is completely allowed, but airlines don’t always tell you the cheapest way to get from DEN to LIS — but Champion Traveler does!

Hack #1: London (DEN > LHR > LIS)

  • Price for both tickets: $691
  • Average savings: $439 (38.87%)

See DEN to LHR flights

Hack #2: London (DEN > LGW > LIS)

  • Price for both tickets: $697
  • Average savings: $433 (38.29%)

See DEN to LGW flights

Hack #3: Luxembourg (DEN > LUX > LIS)

  • Price for both tickets: $757
  • Average savings: $373 (33.02%)

See DEN to LUX flights


Flight Questions Answered

Still have questions about flying from DEN to LIS? We’ve got answers.

Which airlines fly this route?

You can find 30 major airlines flying this route most often: Aer Lingus, Air Canada, Air Europa, Air France, Air India, Alaska, Alitalia, American, Austrian, British Airways, Brussels Airlines, Condor, Delta, easyJet, Finnair, Frontier, Iberia, Icelandair, JetBlue, KLM, Lufthansa, Norwegian, Norwegian Air UK, Royal Air Maroc, SAS, SWISS, Tap Air Portugal, Turkish Airlines, United, Wizz Air, and potentially more during busy seasons.

How far away is it from Lisboa Airport to Denver International Airport?

The distance between the two airports is roughly 4828 miles or 7770 kilometers.

How long does it take to fly from DEN to LIS?

The real-world flight time for a nonstop DEN to LIS flight is about 9 hour 40 minutes.

How many flights go between Denver, CO and Lisbon?

It depends on the day of the week and the date, but a typical day might have around 79 available flights from DEN to LIS.


Airport Location Info


Departing Airport

Origination code DEN
Origination airport name Denver International Airport
City Denver, CO
Country the United States
Latitude 39.9
Longitude -104.7

Return Airport

Destination code LIS
Destination airport name Lisboa Airport
City Lisbon
Country Portugal
Latitude 38.8
Longitude -9.1


Other Resources

Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.