Cheap flights from Lisbon to Denver International

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 round-trip flight from Lisbon to Denver International? Find the lowest prices on one-way and round-trip tickets right here.

Denver.$686 per passenger.Departing Tue, Sep 23, returning Mon, Sep 29.Round-trip flight with Vueling Airlines and Icelandair.Outbound indirect flight with Vueling Airlines, departing from Lisbon on Tue, Sep 23, arriving in Denver International.Inbound indirect flight with Icelandair, departing from Denver International on Mon, Sep 29, arriving in Lisbon.Price includes taxes and charges.From $686, select.

Denver.$770 per passenger.Departing Thu, Oct 2, returning Thu, Oct 16.Round-trip flight with Ryanair and Icelandair.Outbound indirect flight with Ryanair, departing from Lisbon on Thu, Oct 2, arriving in Denver International.Inbound indirect flight with Icelandair, departing from Denver International on Thu, Oct 16, arriving in Lisbon.Price includes taxes and charges.From $770, select.

Denver.$783 per passenger.Departing Wed, Nov 5, returning Wed, Nov 12.Round-trip flight with Delta.Outbound indirect flight with Delta, departing from Lisbon on Wed, Nov 5, arriving in Denver International.Inbound indirect flight with Delta, departing from Denver International on Wed, Nov 12, arriving in Lisbon.Price includes taxes and charges.From $783, select.

Denver.$783 per passenger.Departing Thu, Aug 28, returning Thu, Sep 11.Round-trip flight with KLM and Air France.Outbound indirect flight with KLM, departing from Lisbon on Thu, Aug 28, arriving in Denver International.Inbound indirect flight with Air France, departing from Denver International on Thu, Sep 11, arriving in Lisbon.Price includes taxes and charges.From $783, select.

Denver.$783 per passenger.Departing Mon, Dec 1, returning Mon, Dec 8.Round-trip flight with Delta.Outbound indirect flight with Delta, departing from Lisbon on Mon, Dec 1, arriving in Denver International.Inbound indirect flight with Delta, departing from Denver International on Mon, Dec 8, arriving in Lisbon.Price includes taxes and charges.From $783, select.

Denver.$789 per passenger.Departing Mon, Dec 22, returning Tue, Jan 6.Round-trip flight with Delta.Outbound indirect flight with Delta, departing from Lisbon on Mon, Dec 22, arriving in Denver International.Inbound indirect flight with Delta, departing from Denver International on Tue, Jan 6, arriving in Lisbon.Price includes taxes and charges.From $789, select.

Denver.$897 per passenger.Departing Mon, Jun 1, returning Wed, Jun 17.Round-trip flight with Air Canada.Outbound indirect flight with Air Canada, departing from Lisbon on Mon, Jun 1, arriving in Denver International.Inbound indirect flight with Air Canada, departing from Denver International on Wed, Jun 17, arriving in Lisbon.Price includes taxes and charges.From $897, select.

Denver.$906 per passenger.Departing Tue, Jul 15, returning Tue, Jul 22.Round-trip flight with Ryanair and Frontier Airlines.Outbound indirect flight with Ryanair, departing from Lisbon on Tue, Jul 15, arriving in Denver International.Inbound indirect flight with Frontier Airlines, departing from Denver International on Tue, Jul 22, arriving in Lisbon.Price includes taxes and charges.From $906, 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.

Lisbon to Denver: Flight information

The things to know before you go.

Cheapest flight found	$686
Cheapest month to fly	September

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

How much are round-trip flights from Lisbon to Denver International?

The best price we found for a round-trip flight from Lisbon to Denver International is $686. 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 $686.

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

There are no flights flying from Lisbon to Denver International, as of July 2025.

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

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

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, September 23, 2025.

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 with from Lisbon Airport to Denver International?

Currently, Vueling Airlines offers the cheapest flight tickets to Denver International.

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

The timezone in Denver is UTC-6, which is six hours behind Lisbon.
Arriving two hours before an international flight and one hour ahead of a domestic departure are golden rules for stress-free travel. Be at the airport on time to board your LIS to DEN flight.
You can expect longer lines in popular months like June. Arriving up to four hours in advance for international flights and two hours for domestic departures is a wise move.
We make it simple to book a flight with a stopover. To see all your options for tickets from Lisbon Portela Airport to Denver International Airport, deselect 'Direct flights only.' Then, pick a flight that has a stop long enough to explore your chosen city. Stopovers between LIS and DEN include:
- Newark Liberty International Airport
- Logan International Airport
- London Heathrow Airport

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

Right now, $362 is the cheapest price we've seen for a one-way Lisbon Portela Airport to Denver International Airport flight. The best price for a return ticket is $686. Remember that fares could change due to availability at the time of booking.
It's usually best to book ahead of time if you're looking for cheap tickets from LIS to DEN. That's because flight prices are based on demand, which tends to increase closer to departure.
If you're willing to be flexible with your travel dates, try using the 'Whole month' search tool. It'll give you the lowest price across each month when searching for your flight from Lisbon Portela Airport to Denver International Airport.
There's no need to check back in every day to find out if fares have gone down when you set up a Price Alert. We'll let you know the moment there's a better deal on cheap flights from LIS to DEN.
Choose your preferred arrival and departure times, number of stops and airlines with the filters. Or sort your results by 'Cheapest' to see the best deals on flights from Lisbon Portela Airport to Denver International Airport.

Handy information about Lisbon Portela Airport (LIS)

When it comes to the on-time performance of Lisbon Portela Airport, data shows 64.1% of flights stick to their scheduled arrival time.
Lisbon Portela Airport is around 10 kilometers from central Lisbon. If you're driving, ride-sharing or catching a cab from the center, it'll take you 20 minutes or so to arrive, depending on the traffic.
You can expect a journey time of about 1 hour when using public transport.
Booked an early flight from Lisbon Portela Airport to Denver International Airport? Avoid the stress of rushing to the airport (and get some extra shut-eye) by picking one of these hotels near LIS:

Arriving at Denver International Airport (DEN)

Hop off your Lisbon Portela Airport to Denver International Airport flight and jump into your hotel bed shortly after. If you're looking for a comfy option that's not too far from DEN, consider Baymont by Wyndham Denver International Airport.
Travel at your own speed with a Denver International Airport rental car. Pick up a set of wheels from Routes Car Rentals, Dollar or Budget and see more of Denver and beyond.
To secure the lowest price, book your ride from Denver International Airport around one week before traveling.

Getting from Denver International Airport (DEN) to central Denver

You'll find DEN at 8500 Pena Boulevard.
From Denver International Airport, Denver is approximately 40 kilometers away. It takes around 35 minutes to drive to the center.
Traveling by public transport will take you roughly 1 hour 30 minutes.

When to fly to Denver International Airport (DEN)

It's time to work out your travel dates for your flight from Lisbon Portela Airport to Denver International Airport. July is the most popular month to head to Denver. If you prefer a more low-key vibe, go in April.
The warmest month in Denver is July, with the temperature ranging between 14ºC (57ºF) and 32ºC (90ºF). Book your flights from Lisbon Portela Airport to Denver International Airport in this month if you enjoy this type of weather.
For cooler conditions, search for a cheap ticket from LIS to DEN in January. Average temperatures are between -9ºC (16ºF) and 7ºC (45ºF) then.

Explore more of United States

You've seen Denver, now it's time to explore more of United States. Travel around 105 kilometers south to Colorado Springs to tick off its top attractions. From US Northern Command (USNORTHCOM) / North American Aerospace Defense Command (NORAD) Headquarters to Cheyenne Mountain Air Force Station and National Strength and Conditioning Association (NSCA), you've got a jam-packed schedule ahead.
Around 13 kilometers east of Denver, Aurora is another essential stop in United States. Experience major highlights starting with Magellan's Travel Solutions and Gear, The Fairways at Lowry and Retired Enlisted Association Inc.