Cheap Flights from Lisbon to Denver

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Find the cheapest month or even day of the year to fly to Denver

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Flight deals from Lisbon to Denver

Looking for a cheap last-minute deal or the best return flight from Lisbon to Denver? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Lisbon to Denver

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

Lisbon to Denver: Flight information

The things to know before you go.
Cheapest flight foundج.م.‏ 18,166
Cheapest month to flyMay

Finding cheap flights from Lisbon to Denver: Frequently asked questions

There are 4 airports in Denver: Denver Arapahoe Co, Broomfield, Denver International, and Northern Colorado Regional.
The best price we found for a return flight from Lisbon to Denver is ج.م.‏ 30,644. 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.
Currently, there are no airlines that fly direct from Lisbon to Denver. But we found flights with one or more stops from ج.م.‏ 30,644.
As of February 2026, there are no flights flying from Lisbon to Denver.
The cheapest month to fly from Lisbon to Denver is usually April.
If you're flying from Lisbon Airport, the cheapest airport near Denver is Denver International – which is 29.9 km away from the centre of Denver. We've found flights into this airport from ج.م.‏ 30,644.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Lisbon Airport to Denver on Wednesday, 22 April 2026.
No airlines currently offer direct flights between Lisbon Airport and Denver. Most routes have one or more stops.
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 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.
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.
In February, the average temperature is usually around 0°C. July is typically the warmest month in Denver, when it usually averages around 31°C. You can expect the least rain in January. The coldest month is December, with temperatures averaging -6°C. The rainiest month is July.
Currently, Wizz Air Malta offers the cheapest flight tickets to Denver.

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

  • Denver is six hours behind Lisbon, where Lisbon Portela Airport is located. Denver runs on the UTC-6 timezone.

  • Give yourself enough time to catch your LIS to Denver flight. As a rule of thumb, arrive at least two hours before international departures and an hour ahead for domestic flights.

  • Longer lines at check-in and security are likely if you're heading away during high season, so allow some extra wiggle room. A good rule for peak periods? Arrive up to four hours early for international flights and at least two hours for domestic departures.

  • We make it easy to book flight tickets from LIS to Denver with a stopover. To see all your options, uncheck 'Direct flights only.' Next, choose a flight with a stop long enough to see the sights of your chosen city. Top stopovers include:

    • London Heathrow Airport (LHR)

    • Newark Liberty International Airport (EWR)

    • Logan International Airport (BOS)

  • LIS is around 6 kilometres from central Lisbon. If you're catching a cab, ride-sharing or driving from the centre, it'll take you 20 minutes or so to get there, depending on traffic. If you're taking public transport, expect the trip time to be around 1 hour.

  • Want a leisurely start to your trip? Stay near LIS. Whether you're taking an early flight from Lisbon Portela Airport to Denver or just don't like being rushed, these hotels have you covered:

  • 64.1% of flights departing from Lisbon Portela Airport arrive at their destination on schedule.

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

  • ج.م.‏ 18,166 is currently the best price for a one-way Lisbon Portela Airport to Denver flight. A return flight ticket starts at ج.م.‏ 30,644. These fares can change based on demand and availability.

  • Booking early is often the key to scoring a cheap flight from LIS to Denver. Fares tend to rise as demand increases, so the closer you get to departure, the more expensive your ticket may be.

  • Finding cheap tickets from Lisbon Portela Airport to Denver is more likely if you're flexible with your travel dates. Use the 'Whole month' function to access the best prices across every month and bag an awesome deal.

  • Stay on top of deals for cheap flights from LIS to Denver by setting up a Price Alert. We'll send you an email or notification on the app when a lower fare pops up.

  • Tailor your flights with filters. Select your preferred arrival and departure times, airlines and total journey duration. You can also sort results by 'Best,' 'Fastest' or 'Cheapest' flights from Lisbon Portela Airport to Denver.

Airports in Denver

Denver International Airport (DEN)

  • The distance from Denver International Airport (DEN) to central Denver is roughly 40 kilometres. It'll take you around 35 minutes to reach the centre driving.

  • It'll take around 1 hour 30 minutes when travelling by public transport.

  • After your flight from Lisbon Portela Airport to Denver has landed, unwind at a nearby hotel. Baymont by Wyndham Denver International Airport is a convenient option that's a quick drive from DEN.

  • Grab a Denver International Airport rental car and explore Denver and beyond with your own set of wheels. Routes Car Rentals, Dollar and Budget are popular providers to choose from here.

  • To lock in the lowest price, reserve your vehicle from Denver International Airport about one week in advance of your flight from LIS to Denver.

  • The address for DEN is 8500 Pena Boulevard.

Best time to go to Denver

  • Before scheduling your flights from Lisbon Portela Airport to Denver, consider which time of year is best for you. High season in Denver offers a lively atmosphere and plenty of activities, while the low season brings better deals on hotels and smaller crowds.

  • Lock in a Lisbon Portela Airport to Denver flight ticket with a departure in July if you want to visit the city during its warmest month. You can expect temperatures to range from 14ºC to 32ºC.

  • January has average temperatures of between -9ºC and 7ºC. Look for a cheap ticket from LIS to Denver around that time if you want to travel in cooler conditions.

More about Denver

  • Start your Denver trip off on the right foot by choosing the ideal place to stay. As soon as you've booked your flight from Lisbon Portela Airport to Denver, check out our selection of hotels including:

  • There are so many things to explore in this city it can be hard to work out where to start. Union Station, Denver Art Museum and Denver Botanic Gardens are top sights which should be on any good Denver itinerary.

Explore more of United States

  • You've visited Denver, now it's time to explore more of United States. Journey around 105 kilometres south to Colorado Springs to check off its leading sights. From US Northern Command (USNORTHCOM) / North American Aerospace Defence Command (NORAD) Headquarters to Cheyenne Mountain Air Force Station and National Strength and Conditioning Association (NSCA), there's plenty to keep you on the go.

  • Around 161 kilometres south of Denver, Pueblo is another favourite stop in United States. No visit is complete without checking out Pueblo Weisbrod Aircraft Museum, Rosemount Museum and Pueblo Zoo.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.