Are direct flights from Denver to Lisbon always the best option?

Direct flights offer convenience by minimizing travel time and avoiding layovers. However, they are not always the cheapest option. Flights with one or more stops can sometimes be more economical, depending on your priorities for cost versus speed.

Can flexible travel dates help on Denver to Lisbon flights?

Yes, being flexible with your travel dates can significantly impact flight prices. Mid-week travel or flying during the off-season often results in lower fares compared to weekend or holiday travel. Adjusting your departure or return by a few days may reveal cheaper options.

What extra costs should I check before booking Denver to Lisbon flights?

Before booking, always consider potential extra costs such as baggage fees, seat selection charges, and in-flight services. Also, factor in transportation costs from the airport to your final destination. These additional expenses can sometimes add up and affect your overall travel budget.

Flights From Denver

To Lisbon

Cheap Flights from Denver to Lisbon

Browse current best options from Denver. Become a member to unlock all deals and get alerts when new deals appear.

Deals from

Denver

RatePunk searches hundreds of travel sites at once for deals on flights to Lisbon

Prices updated 2 days ago

405 airlines compared

80%+ AI score for best value

Fares are subject to change and may not be available for all dates. (Data last updated Jul 26, 2026.)

Today’s best flight deals from Denver to Lisbon

Explore current cheapest deals departing from Denver to Lisbon

2026-10-14 – 2026-10-22
DEN - Lisbon
91% AI deal score
$853
$591
Round trip
2026-10-14 – 2026-10-20
DEN - Lisbon
91% AI deal score
$872
$592
Round trip
2026-10-12 – 2026-10-18
DEN - Lisbon
91% AI deal score
$872
$593
Round trip
2026-11-23 – 2026-11-29
DEN - Lisbon
90% AI deal score
$818
$596
Round trip
2026-11-25 – 2026-11-29
DEN - Lisbon
90% AI deal score
$835
$611
Round trip
2026-11-02 – 2026-11-12
DEN - Lisbon
82% AI deal score
$793
$670
Round trip
2026-10-21 – 2026-10-30
DEN - Lisbon
84% AI deal score
$867
$691
Round trip
2026-10-15 – 2026-10-20
DEN - Lisbon
86% AI deal score
$899
$691
Round trip
2026-10-19 – 2026-10-26
DEN - Lisbon
88% AI deal score
$881
$692
Round trip
2026-10-15 – 2026-10-25
DEN - Lisbon
83% AI deal score
$855
$694
Round trip

Denver to Lisbon: Overview

Insights for flights from Denver to Lisbon

Right now, only 1% of current fares from Denver to Lisbon are considered a good price. This route typically sees prices ranging from $645–$1179, with a median of $904. Current fares are significantly above the typical level, suggesting that now may not be the optimal time to find cheap flights from Denver to Lisbon.

A typical journey from Denver to Lisbon takes about 26h 45m, including connections. This is a long-haul route, covering a distance of 7773 km. Given that most itineraries involve at least one stop, the overall travel time can vary significantly depending on layovers.

Most itineraries for flights from Denver to Lisbon connect at least once. In fact, 0% of recent fares were for direct flights from Denver to Lisbon. The majority of connecting itineraries typically involve 2 stopovers, which contributes to the longer overall journey times.

When is the cheapest time to fly from Denver to Lisbon? The data indicates that February is typically the most affordable month, with a median fare of $393. January also offers lower prices, with a median of $427, followed by October at a median of $477. These months present the best opportunities for finding more budget-friendly travel options on this route.

How much is a round trip from Denver to Lisbon

Regular price: $644 - $1,404

Prices are currently within the regular range for flights from Denver to Lisbon.

The regular price range for flights from Denver to Lisbon is typically between $644 and $1404. The current lowest deal is $686 with Icelandair, for travel from Nov 2-Nov 12.

now $686

Low $644

High $1,404

The cheapest time to fly from Denver to Lisbon

The cheapest month to fly from Denver to Lisbon is February, with a median price of $393. The most expensive month is September, with a median price of $1196. Prices are generally lower from January to October.

February

Cheapest

Flights from $393

September

Most Expensive

Flights from $1,196

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Direct flights from Denver to Lisbon

Icelandair

United Airlines

Air Canada

British Airways

Last-minute flights going from Denver to Lisbon

Sun, Sep 6

⌛ Last-Minute

DEN - Lisbon

Denver (DEN) - Lisbon (LIS)

Icelandair

$815

$784

One-way

Fri, Sep 11

⌛ Last-Minute

DEN - Lisbon

Denver (DEN) - Lisbon (LIS)

Icelandair

$788

$759

One-way

Sat, Sep 12

⌛ Last-Minute

DEN - Lisbon

Denver (DEN) - Lisbon (LIS)

Icelandair

$788

$756

One-way

Mon, Sep 21

⌛ Last-Minute

DEN - Lisbon

Denver (DEN) - Lisbon (LIS)

Lufthansa

$804

$762

One-way

Mon, Sep 21

⌛ Last-Minute

DEN - Lisbon

Denver (DEN) - Lisbon (LIS)

Air Canada

$804

$793

One-way

Tue, Sep 22

⌛ Last-Minute

DEN - Lisbon

Denver (DEN) - Lisbon (LIS)

Air Canada

$826

$776

One-way

Biggest price drops on these dates for flights from Denver to Lisbon

5 nights

Oct 15 - Oct 20

$893 → $687

23%

6 nights

Oct 14 - Oct 20

$867 → $687

21%

8 nights

Oct 14 - Oct 22

$849 → $687

19%

5 nights

Oct 11 - Oct 16

$884 → $726

18%

Popular Airports to fly from Denver to Lisbon

Denver - Lisbon route insights

💸 Price insights

Recent fares are above the typical level

Recent fares for Denver to Lisbon are above the typical level at $686.

📅 Best time to fly

February is historically the cheapest month

Historically, February is the cheapest month to fly from Denver to Lisbon, with a median price of $393.

⏱️ Flight duration

Connecting flights average 26h 45m

Flights from Denver to Lisbon typically involve 2 stopovers, with a median duration of 26h 45m.

✈️ Airlines & availability

Connecting flights are dominant

Direct flights are not common. Consider connecting flights for this long-haul route.

🏆 Airline highlight

Icelandair offers frequent deals

Icelandair has offered 46 deals recently, making it a frequent option for this route.

🎯 Booking tip

Deals appear frequently

Deals for flights from Denver to Lisbon appear frequently, typically within a 30-day window.

Denver main airports to depart from

Denver International (DEN)

Cheapest

Denver International is a great choice for flights to Lisbon, offering competitive prices for your journey.

📍 ~30 km from Denver (reachable by car or train)

💸 Flights from ~$718

Lisbon main airports to arrive at

Lisbon Portela (LIS)

Cheapest

Lisbon Portela Airport is the most convenient option for flights from Denver to Lisbon.

📍 ~7 km from city center (reachable by metro, bus, taxi)

💸 Flights from ~$718

Airports nearby Lisbon used as alternative

Porto (OPO)

Cheapest

Porto Airport is a major international hub with an extensive route network, comparable to Lisbon.

📍 ~275 km from Lisbon (reachable by train or car, ~3 hours travel time)

💸 Flights from ~$726

Business & First Class Flight Deals to Lisbon

93% AI deal score

$2,776

$1,773

Save $1,003

Frequently Asked Questions About Flights to Lisbon

Finding affordable flights often involves comparing prices across various platforms. Being flexible with your travel dates and considering flights with layovers can sometimes lead to lower fares. Subscribing to price alerts may also help you catch deals as they arise.

The optimal time to book flights can vary, but generally, booking in advance may offer more competitive prices. Prices can fluctuate, so monitoring fares over a period can be beneficial. Avoiding peak travel seasons might also help secure better deals.

Comparing nearby airports can sometimes reveal different pricing options. While it may add to your ground travel time, the potential savings on airfare could be significant. It's often worth checking if alternative airports offer more budget-friendly routes.

Denver to Lisbon: Overview

Insights for flights from Denver to Lisbon

How much is a round trip from Denver to Lisbon

Regular price: $644 - $1,404

Prices are currently within the regular range for flights from Denver to Lisbon.

The regular price range for flights from Denver to Lisbon is typically between $644 and $1404. The current lowest deal is $686 with Icelandair, for travel from Nov 2-Nov 12.

now $686

Low $644

High $1,404

The cheapest time to fly from Denver to Lisbon

February

Cheapest

Flights from $393

September

Most Expensive

Flights from $1,196

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec