Cheap flights from Lisbon to Denver from $370
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Lisbon to Denver departing on 5/28. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Save money when you book flights with momondo
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from Lisbon to Denver
Cheap round-trip flights
Cheap one-way flights
British Airways flights from Lisbon to Denver
Our best British Airways deals on Lisbon to Denver flight tickets
American Airlines flights from Lisbon to Denver
Our best American Airlines deals on Lisbon to Denver flight tickets
See travel insights to Denver from
How to get the cheapest flight ticket from Lisbon to Denver
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the typical price of a round-trip flight between Lisbon and Denver?
What is the cheapest month to fly to Denver?
The cheapest month to fly to Denver from Lisbon is in October. Flight prices, which tend to average around $789, are often lower during this time because this is during the off-season. If you don’t want to visit Denver in October, then you should wait until February to fly from Lisbon, when ticket prices are also cheap, with an average price of $804.
What is the cheapest day to depart on your flight to Denver?
The cheapest day to depart on your flight to Denver is on a Wednesday when prices can be found for as low as $772. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Denver is Friday, with ticket prices averaging around $1,229.
How far in advance should I book a flight to Denver?
You are more likely to see cheaper flights to Denver from Lisbon when booking 23 weeks ahead of your departure date. In general, you can expect to find flights to Denver for around $968 when searching 23 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Denver from Lisbon for as low as $744 on momondo.
How have Lisbon to Denver flight prices changed over time?
As of April 2025, prices for Lisbon to Denver flights are approximately 4% cheaper when compared to flights at the same time last year.
What is the cheapest airline that flies from Lisbon Humberto Delgado to Denver Intl?
Aer Lingus, TAP AIR PORTUGAL, and Turkish Airlines are the most popular carriers operating from Lisbon Humberto Delgado to Denver Intl
What airlines fly to Denver?
United Airlines, British Airways and Delta are the top three most popular airlines that fly to Denver from Lisbon according to our data. United Airlines is the first choice among our users, with 37% of people opting to fly with this airline when traveling to Denver. Keep in mind that there are 4 different airlines that fly to Denver on a routine basis, so you have a few additional options to choose from.
When to book flights from Lisbon to Denver
Cheap Lisbon to Denver (LIS to DEN) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Lisbon to Denver
How far is Lisbon Humberto Delgado to Denver Intl by plane?
A flight from Lisbon Humberto Delgado to Denver Intl will travel around 4847.0 mi. Typically, this will take 13h 55m by plane in normal conditions.
When did momondo last update prices for flights from Lisbon Humberto Delgado Airport to Denver Intl Airport?
Prices for flights from Lisbon Humberto Delgado Airport to Denver Intl Airport were last updated today.
How many operators does momondo search for flights from Lisbon Humberto Delgado Airport to Denver Intl Airport?
As of April 2025, there are 4 operators available to choose from for flights from Lisbon Humberto Delgado Airport to Denver Intl Airport.
How old do you have to be to fly from Lisbon Humberto Delgado Airport to Denver Intl Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lisbon Humberto Delgado Airport to Denver Intl Airport.
What documentation or ID do you need to fly to Denver Intl Airport?
The travel and health documents required for your trip to Denver Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Denver Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular airline from Lisbon to Denver?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Lisbon to Denver is United Airlines (37% of total bookings). The next most popular airlines are British Airways (28%), Delta (20%), and American Airlines (15%).
Best airlines flying from Lisbon to Denver
Compare and see reviews for airlines that fly from Lisbon to Denver with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $749 | Free Cancellation | Rating 6.6 6,837 reviews | |||
| PriceFrom $758 | Free Cancellation | Rating 8.0 7,934 reviews | |||
| PriceFrom $766 | Free Cancellation | Rating 7.4 8,696 reviews | |||
| PriceFrom $875 | Free Cancellation | Rating 7.2 10,000 reviews |
Traveling to a place near Denver?
Book flights to Denver if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Lisbon to Denver?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Lisbon to Denver. momondo saves you time and could save you money on your trip.
Can I find flights from Lisbon to Denver with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for Lisbon to Denver flights to just show those with flexible booking policies.
How can momondo help me find flights from Lisbon to Denver?
momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Lisbon to Denver.
I’m not ready to book a flight from Lisbon to Denver right now. Can momondo alert me if prices change?
If you are simply researching potential flights to Denver, momondo offers a useful price alert feature which will track prices for flights to Denver from Lisbon and alert you when they change.