Cheap Flights from Lisbon to Denver International

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Compare Lisbon to Denver International flight deals

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Flight deals from Lisbon to Denver International

Looking for a cheap last-minute deal or the best return flight from Lisbon Airport to Denver International Airport? If you want to travel next month, return fares start from $1,721. Find the lowest prices on one-way and return tickets right here.

Denver.$1,200 per passenger.Departing Tue, 15 Dec, returning Wed, 13 Jan.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from Lisbon on Tue, 15 Dec, arriving in Denver International.Inbound indirect flight with Icelandair, departs from Denver International on Wed, 13 Jan, arriving in Lisbon.Price includes taxes and charges.From $1,200, select.

Denver.$1,435 per passenger.Departing Wed, 2 Sep, returning Sat, 5 Sep.Return flight with TAP Air Portugal and Frontier Airlines.Outbound indirect flight with TAP Air Portugal, departs from Lisbon on Wed, 2 Sep, arriving in Denver International.Inbound indirect flight with Frontier Airlines, departs from Denver International on Sat, 5 Sep, arriving in Lisbon.Price includes taxes and charges.From $1,435, select.

Denver.$1,554 per passenger.Departing Tue, 25 Aug, returning Mon, 14 Sep.Return flight with Aer Lingus.Outbound indirect flight with Aer Lingus, departs from Lisbon on Tue, 25 Aug, arriving in Denver International.Inbound indirect flight with Aer Lingus, departs from Denver International on Mon, 14 Sep, arriving in Lisbon.Price includes taxes and charges.From $1,554, select.

Denver.$1,648 per passenger.Departing Wed, 4 Nov, returning Thu, 3 Dec.Return flight with KLM and Air France.Outbound indirect flight with KLM, departs from Lisbon on Wed, 4 Nov, arriving in Denver International.Inbound indirect flight with Air France, departs from Denver International on Thu, 3 Dec, arriving in Lisbon.Price includes taxes and charges.From $1,648, select.

Denver.$1,649 per passenger.Departing Sat, 31 Oct, returning Sat, 7 Nov.Return flight with Delta.Outbound indirect flight with Delta, departs from Lisbon on Sat, 31 Oct, arriving in Denver International.Inbound indirect flight with Delta, departs from Denver International on Sat, 7 Nov, arriving in Lisbon.Price includes taxes and charges.From $1,649, select.

Denver.$1,649 per passenger.Departing Thu, 15 Oct, returning Mon, 19 Oct.Return flight with Delta.Outbound indirect flight with Delta, departs from Lisbon on Thu, 15 Oct, arriving in Denver International.Inbound indirect flight with Delta, departs from Denver International on Mon, 19 Oct, arriving in Lisbon.Price includes taxes and charges.From $1,649, select.

Denver.$1,649 per passenger.Departing Fri, 12 Feb, returning Sun, 21 Feb.Return flight with Delta.Outbound indirect flight with Delta, departs from Lisbon on Fri, 12 Feb, arriving in Denver International.Inbound indirect flight with Delta, departs from Denver International on Sun, 21 Feb, arriving in Lisbon.Price includes taxes and charges.From $1,649, select.

Denver.$1,649 per passenger.Departing Sat, 12 Sep, returning Sat, 3 Oct.Return flight with Delta.Outbound indirect flight with Delta, departs from Lisbon on Sat, 12 Sep, arriving in Denver International.Inbound indirect flight with Delta, departs from Denver International on Sat, 3 Oct, arriving in Lisbon.Price includes taxes and charges.From $1,649, select.

Denver.$1,649 per passenger.Departing Wed, 4 Nov, returning Thu, 12 Nov.Return flight with KLM and Air France.Outbound indirect flight with KLM, departs from Lisbon on Wed, 4 Nov, arriving in Denver International.Inbound indirect flight with Air France, departs from Denver International on Thu, 12 Nov, arriving in Lisbon.Price includes taxes and charges.From $1,649, select.

Denver.$1,679 per passenger.Departing Tue, 6 Apr, returning Fri, 23 Apr.Return flight with Delta.Outbound indirect flight with Delta, departs from Lisbon on Tue, 6 Apr, arriving in Denver International.Inbound indirect flight with Delta, departs from Denver International on Fri, 23 Apr, arriving in Lisbon.Price includes taxes and charges.From $1,679, select.

Denver.$1,689 per passenger.Departing Sat, 1 May, returning Sat, 8 May.Return flight with Lufthansa.Outbound indirect flight with Lufthansa, departs from Lisbon on Sat, 1 May, arriving in Denver International.Inbound indirect flight with Lufthansa, departs from Denver International on Sat, 8 May, arriving in Lisbon.Price includes taxes and charges.From $1,689, select.

Denver.$1,689 per passenger.Departing Thu, 29 Apr, returning Fri, 7 May.Return flight with United.Outbound indirect flight with United, departs from Lisbon on Thu, 29 Apr, arriving in Denver International.Inbound indirect flight with United, departs from Denver International on Fri, 7 May, arriving in Lisbon.Price includes taxes and charges.From $1,689, select.

Denver.$1,696 per passenger.Departing Fri, 21 May, returning Thu, 3 Jun.Return flight with Lufthansa.Outbound indirect flight with Lufthansa, departs from Lisbon on Fri, 21 May, arriving in Denver International.Inbound indirect flight with Lufthansa, departs from Denver International on Thu, 3 Jun, arriving in Lisbon.Price includes taxes and charges.From $1,696, select.

Denver.$1,701 per passenger.Departing Thu, 3 Dec, returning Fri, 11 Dec.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Lisbon on Thu, 3 Dec, arriving in Denver International.Inbound indirect flight with Air Canada, departs from Denver International on Fri, 11 Dec, arriving in Lisbon.Price includes taxes and charges.From $1,701, select.

Denver.$1,723 per passenger.Departing Sun, 16 Aug, returning Sat, 29 Aug.Return flight with Aer Lingus.Outbound indirect flight with Aer Lingus, departs from Lisbon on Sun, 16 Aug, arriving in Denver International.Inbound indirect flight with Aer Lingus, departs from Denver International on Sat, 29 Aug, arriving in Lisbon.Price includes taxes and charges.From $1,723, select.

Denver.$1,905 per passenger.Departing Tue, 21 Jul, returning Sun, 26 Jul.Return flight with Turkish Airlines.Outbound indirect flight with Turkish Airlines, departs from Lisbon on Tue, 21 Jul, arriving in Denver International.Inbound indirect flight with Turkish Airlines, departs from Denver International on Sun, 26 Jul, arriving in Lisbon.Price includes taxes and charges.From $1,905, select.

Find the cheapest month to fly from Lisbon to Denver International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Lisbon to Denver International flights are currently cheapest in September.

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Lisbon to Denver International: Alternative routes

Compare routes from Lisbon to Denver below. You may find an airport to fly into that's cheaper, faster, or easier than Denver International.

Denver International

30km from central Denver

ClosestCheapest

from $1,199

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Lisbon to Denver: Flight information

The things to know before you go.

Cheapest flight found	$1,200
Cheapest month to fly	December

Finding cheap flights from Lisbon to Denver International: Frequently asked questions

How much are return flights from Lisbon to Denver International?

The best price we found for a return flight from Lisbon to Denver International is $1,199. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

Which airlines fly direct from Lisbon to Denver International?

Currently, there are no airlines that fly direct from Lisbon to Denver International. But we found flights with one or more stops from $1,199.

How many flights are there a week from Lisbon to Denver International?

As of July 2026, there are no flights flying from Lisbon to Denver International.

When is the cheapest time to fly from Lisbon to Denver International?

The cheapest month to fly from Lisbon to Denver International is usually December.

Which upcoming date is cheapest to fly from Lisbon Airport to Denver International Airport on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Lisbon Airport to Denver International Airport on Tuesday, 15 December 2026.

Can I get a direct flight from Lisbon Airport to Denver International Airport?

No airlines currently offer direct flights between Lisbon Airport and Denver International Airport. Most routes have one or more stops.

How can I find the best flight deal to Denver International?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Denver International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

When is the best time to book flights to Denver?

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Denver is around 40 days in advance, so don’t leave your flight to the last minute.

Which is the cheapest airline to fly from Lisbon Airport to Denver International with?

Currently, Icelandair offers the cheapest flight tickets to Denver International.

Flying from Lisbon Airport (LIS) to Denver International Airport (DEN): what you need to know

The timezone in Denver is UTC-7, which is seven hours behind Lisbon.
Give yourself plenty of time to catch your LIS to DEN flight. A good rule of thumb is to arrive at least two hours before international departures and an hour ahead for domestic flights.
During popular months like August, you'll want to get to the airport well in advance. Plan to arrive two hours before a domestic departure and four hours ahead of international flights when you travel during a peak period in general.
Think about adding a stopover when booking your ticket from Lisbon Airport to Denver International Airport. Just uncheck 'Direct flights only' to break up your trip, or even explore someplace new along the way. Here are some options between LIS and DEN:
- London Heathrow Airport
- New York Newark Airport
- Boston Logan International Airport

How to find the cheapest flights from Lisbon Airport (LIS) to Denver International Airport (DEN)

The cheapest price we've found for a one-way Lisbon Airport to Denver International Airport flight is $1,080. A round-trip plane ticket is currently $1,199. Depending on the availability when you book, these fares may change.
Don't leave everything to the last moment. You're more likely to find cheap tickets from LIS to DEN if you book early. Airlines often offer some great early bird deals.
If you can be flexible with your trip dates, try using the 'Whole month' tool. It'll show you the lowest price in each month when looking for a flight from Lisbon Airport to Denver International Airport.
You won't have to check every day to find out if fares have dropped when you set up a Price Alert. We'll send you an update as soon as the price changes on cheap flights from LIS to DEN.
Pick your ideal arrival and departure times, number of stops and airlines with the filters. Or sort your results by 'Cheapest' to get the best deals on flights from Lisbon Airport to Denver International Airport.

Handy information about Lisbon Airport (LIS)

When it comes to the on-time performance of Lisbon Airport, data shows 56% of flights arrive within the scheduled timeframe.
To reach Lisbon Airport from central Lisbon, it takes about 20 minutes if you're planning to drive. This depends on traffic though. It's approximately 8 kilometres from the airport to the city centre.
Taking public transport? Expect a journey time of around 25 minutes.
Taking an early flight from Lisbon Airport to Denver International Airport? Avoid rushing to the terminal (and catch some extra z's) by picking one of these hotels near LIS:

Arriving at Denver International Airport (DEN)

After your Lisbon Airport to Denver International Airport flight has touched down, kick back and relax at a hotel close by. Baymont by Wyndham Denver International Airport is a comfy option within easy reach of DEN.
Pick up a Denver International Airport rental car and discover Denver and beyond with your own wheels. Routes Car Rentals, Dollar and Budget are well-known companies you can book with here.
Lock in the best deal by booking your ride from Denver International Airport around one week in advance of your trip.

When to fly to Denver International Airport (DEN)

The quietest month for a flight from Lisbon Airport to Denver International Airport is January, while July is the busiest. Pick the best time to visit Denver based on whether you prefer a laid-back vibe or a more bustling atmosphere.
When booking your flight from Lisbon Airport to Denver International Airport, think about the kind of weather you enjoy. July is the warmest month in Denver, with temperatures ranging from 14ºC to 32ºC.
If you like travelling in cooler conditions, look for a cheap ticket from LIS to DEN in January. Temperatures average between -9ºC and 7ºC then.

Explore more of the United States

Denver is easy to fall in love with, but there are so many other corners of the United States waiting to be discovered. About 105 kilometres south of Denver, a visit to Colorado Springs will keep you on the go. Start with leading sights like Garden of the Gods, Pikes Peak Region Attractions and Red Rock Canyon.
Aurora is another must-experience destination in the United States and is around 13 kilometres east of Denver. No journey is complete without seeing Plains Conservation Centre, DeLaney Homestead Historic District and Aircraft viewing.