What is the cheapest day to fly from Lisbon to Denver?

Travelers seeking maximum savings on their Lisbon to Denver flight should consider departing on Wednesday mornings when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Denver ranges from 0.5 - 2.3 inches per month. May is typically the wettest month, when rainfall can reach 2.3 in. January is typically the driest time to visit Denver when rainfall is around 0.5 in.

If weather is an important factor for your trip to Denver, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

What are the most popular airlines that fly from Lisbon to Denver?

Consider British Airways, Delta or United Airlines when booking your flight. These represent the most popular airlines when flying from Lisbon to Denver.

What is the cheapest day to fly round-trip from Lisbon to Denver?

It’s generally more expensive to depart on a Tuesday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.

How far in advance should I book a flight from Lisbon to Denver?

Users have found that booking a flight from Lisbon to Denver at least 43 days early can save you up to 29% on average compared to booking a flight this week. If booking 43 days before your flight isn’t an option for you, users have found flights from Lisbon to Denver for as little as $874 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $1,395 for flights departing within the next 3 days.

What is the cheapest month to fly from Lisbon to Denver?

October can be a great time to fly to Denver from Lisbon with a flight ticket averaging about $945. Cheapflights users have found deals in the month of October for as cheap as $766. The most expensive prices can be found in the month of July.

What is the cheapest time of day to fly from LIS to DEN?

When flying from Lisbon to Denver, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Can I find deals for flights from Lisbon to Denver that include hotel bookings?

Yes. In addition to deals on Lisbon to Denver flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Lisbon to Denver?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Lisbon to Denver.

Can I find deals for business class flights from Lisbon to Denver?

Yes. Cheapflights offers flight deals from Lisbon to Denver by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$415+ Flights from Lisbon to Denver

Q: How much does it cost to fly round-trip from Lisbon to Denver?

Airfare is below average for this route at the moment. Lisbon to Denver flights typically cost between $889 and $1,202 in September. The cheapest round-trip price found within the last 3 days was $774 on Multiple Airlines (Sep 13-Sep 29).

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1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

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Cheapflights Tip: The best prices from Lisbon Humberto Delgado to Denver Intl are usually found in October or February, booked 43 days in advance, depart on a Wednesday or Tuesday and return on a Wednesday

Cheap flight deals from Lisbon to Denver

Round-trip from	$774 (Kiwi.com)
One-way from	$415 (Kiwi.com)
Popular in	July
Cheapest in	October
Average price	$911

From Lisbon Humberto Delgado to Denver Intl

Search Deals

One-way flight from Lisbon Humberto Delgado to Denver Intl

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Highest demand for flights based on searches. 8% potential increase in price ($86 potential increase over avg. RT price).

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Cheapest flight prices on average. 1% potential price decrease ($16 potential savings vs. average RT price).

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Average for round-trip flights in August 2025

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Find flight deals from Lisbon to Denver

Cheapest flights from Lisbon to Denver
Explore the most affordable flight options available from Lisbon to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 13, 2025.

Sat 9/1312:15 pmLIS - DEN

1 stop19h 49mMultiple Airlines

Mon 9/292:05 pmDEN - LIS

2 stops32h 25mMultiple Airlines

Deal found 8/12

$774

Sun 9/710:15 pmLIS - DEN

1 stop26h 44mAer Lingus

Fri 9/127:55 pmDEN - LIS

1 stop18h 40mAer Lingus

Deal found 8/11

$819

Thu 10/26:35 amLIS - DEN

2 stops25h 29mMultiple Airlines

Wed 10/86:10 amDEN - LIS

1 stop16h 20mMultiple Airlines

Deal found 8/13

$840

Fri 10/36:35 amLIS - DEN

2 stops25h 29mMultiple Airlines

Wed 10/86:10 amDEN - LIS

1 stop16h 20mMultiple Airlines

Deal found 8/13

$844

Fri 9/57:30 amLIS - DEN

1 stop15h 05mMultiple Airlines

Fri 9/125:50 pmDEN - LIS

1 stop13h 55mMultiple Airlines

Deal found 8/13

$864

Thu 10/25:05 amLIS - DEN

1 stop17h 30mLufthansa

Wed 10/154:15 pmDEN - LIS

1 stop22h 35mLufthansa

Deal found 8/12

$867

Wed 9/245:05 amLIS - DEN

2 stops21h 35mUnited Airlines

Wed 10/1511:59 pmDEN - LIS

1 stop27h 31mUnited Airlines

Deal found 8/13

$868

Sat 9/1312:20 pmLIS - DEN

1 stop18h 39mUnited Airlines

Mon 9/2910:11 amDEN - LIS

1 stop15h 09mUnited Airlines

Deal found 8/12

$870

Best flights from Lisbon to Denver
Discover carefully curated flight deals from Lisbon to Denver that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 13, 2025.

Sat 9/1312:15 pmLIS - DEN

1 stop19h 49mMultiple Airlines

Mon 9/292:05 pmDEN - LIS

2 stops32h 25mMultiple Airlines

Deal found 8/12

$774

Sun 9/710:15 pmLIS - DEN

1 stop26h 44mAer Lingus

Fri 9/127:55 pmDEN - LIS

1 stop18h 40mAer Lingus

Deal found 8/11

$819

Thu 10/25:05 amLIS - DEN

1 stop17h 30mLufthansa

Wed 10/154:15 pmDEN - LIS

1 stop22h 35mLufthansa

Deal found 8/12

$867

Wed 9/245:05 amLIS - DEN

2 stops21h 35mUnited Airlines

Wed 10/1511:59 pmDEN - LIS

1 stop27h 31mUnited Airlines

Deal found 8/13

$868

Thu 10/26:35 amLIS - DEN

2 stops25h 29mMultiple Airlines

Wed 10/86:10 amDEN - LIS

1 stop16h 20mMultiple Airlines

Deal found 8/13

$840

Fri 10/36:35 amLIS - DEN

2 stops25h 29mMultiple Airlines

Wed 10/86:10 amDEN - LIS

1 stop16h 20mMultiple Airlines

Deal found 8/13

$844

Fri 9/57:30 amLIS - DEN

1 stop15h 05mMultiple Airlines

Fri 9/125:50 pmDEN - LIS

1 stop13h 55mMultiple Airlines

Deal found 8/13

$864

Last-minute flights from Lisbon to Denver
Discover last-minute flight deals from Lisbon to Denver. Data last updated August 13, 2025 and is based on user searches.

Mon 8/1810:55 amLIS - DEN

1 stop38h 00mTurkish Airlines

Sat 8/237:50 pmDEN - LIS

1 stop31h 05mTurkish Airlines

Deal found 8/11

$1,036

Mon 8/1811:25 amLIS - DEN

1 stop29h 56mAir Canada

Mon 8/259:40 amDEN - LIS

1 stop16h 40mAir Canada

Deal found 8/11

$1,087

Tue 8/195:40 amLIS - DEN

1 stop16h 50mDelta

Tue 8/261:51 pmDEN - LIS

2 stops17h 59mDelta

Deal found 8/12

$1,065

Tue 8/1911:05 amLIS - DEN

1 stop17h 50mAmerican Airlines

Mon 8/255:32 pmDEN - LIS

2 stops17h 23mAmerican Airlines

Deal found 8/11

$1,068

Tue 8/195:40 amLIS - DEN

1 stop16h 50mMultiple Airlines

Mon 8/2512:11 pmDEN - LIS

1 stop12h 49mMultiple Airlines

Deal found 8/11

$1,070

Tue 8/1912:20 pmLIS - DEN

1 stop14h 18mUnited Airlines

Mon 8/2511:15 amDEN - LIS

1 stop16h 15mUnited Airlines

Deal found 8/12

$1,080

Tue 8/1912:55 pmLIS - DEN

1 stop14h 05mAir Canada

Sun 8/245:40 pmDEN - LIS

1 stop32h 40mAir Canada

Deal found 8/11

$1,081

Tue 8/1912:55 pmLIS - DEN

1 stop14h 05mUnited Airlines

Sun 8/2411:59 pmDEN - LIS

1 stop27h 31mUnited Airlines

Deal found 8/11

$1,086

Wed 8/2011:05 amLIS - DEN

1 stop17h 50mAmerican Airlines

Sun 8/246:35 pmDEN - LIS

1 stop16h 20mAmerican Airlines

Deal found 8/12

$1,067

Thu 8/2111:25 amLIS - DEN

1 stop13h 55mUnited Airlines

Mon 8/2511:40 amDEN - LIS

1 stop13h 40mUnited Airlines

Deal found 8/12

$1,074

Thu 8/2111:25 amLIS - DEN

1 stop13h 55mUnited Airlines

Tue 8/269:40 amDEN - LIS

1 stop16h 40mUnited Airlines

Deal found 8/11

$1,075

Fri 9/57:30 amLIS - DEN

1 stop15h 05mMultiple Airlines

Fri 9/125:50 pmDEN - LIS

1 stop13h 55mMultiple Airlines

Deal found 8/13

$864

One-way flights from Lisbon to Denver
Search for one-way flight options from Lisbon to Denver. Find affordable one-way fares based on user searches. Data last updated August 13, 2025.

Wed 10/19:10 pmLIS - DEN

3 stops43h 58mMultiple Airlines

Deal found 8/11

$415

Mon 10/139:05 pmLIS - DEN

3 stops33h 05mMultiple Airlines

Deal found 8/12

$420

Wed 10/89:15 pmLIS - DEN

3 stops32h 55mMultiple Airlines

Deal found 8/11

$421

Wed 10/159:15 pmLIS - DEN

3 stops32h 55mMultiple Airlines

Deal found 8/12

$422

Sun 11/29:00 amLIS - DEN

2 stops55h 49mMultiple Airlines

Deal found 8/11

$429

Fri 9/199:20 pmLIS - DEN

2 stops45h 04mMultiple Airlines

Deal found 8/11

$434

Tue 10/287:10 pmLIS - DEN

3 stops44h 39mMultiple Airlines

Deal found 8/11

$444

Mon 10/2710:00 pmLIS - DEN

3 stops32h 58mMultiple Airlines

Deal found 8/11

$448

Wed 9/179:30 pmLIS - DEN

2 stops42h 00mMultiple Airlines

Deal found 8/11

$452

Thu 9/186:00 amLIS - DEN

3 stops58h 01mMultiple Airlines

Deal found 8/11

$461

Fly from

Fly to

Route

Depart

Return

Price

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Sat 9/13

12:15 pm-1:04 am

1 stop19h 49m

Denver Intl

Mon 9/29

2:05 pm-5:30 am

2 stops32h 25m

$774

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Sun 9/7

10:15 pm-5:59 pm

1 stop26h 44m

Denver Intl

Fri 9/12

7:55 pm-9:35 pm

1 stop18h 40m

$819

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Thu 10/2

6:35 am-1:04 am

2 stops25h 29m

Denver Intl

Wed 10/8

6:10 am-5:30 am

1 stop16h 20m

$840

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Fri 10/3

6:35 am-1:04 am

2 stops25h 29m

Denver Intl

Wed 10/8

6:10 am-5:30 am

1 stop16h 20m

$844

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Fri 9/5

7:30 am-3:35 pm

1 stop15h 05m

Denver Intl

Fri 9/12

5:50 pm-2:45 pm

1 stop13h 55m

$864

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Thu 10/2

5:05 am-3:35 pm

1 stop17h 30m

Denver Intl

Wed 10/15

4:15 pm-9:50 pm

1 stop22h 35m

$867

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Wed 9/24

5:05 am-7:40 pm

2 stops21h 35m

Denver Intl

Wed 10/15

11:59 pm-10:30 am

1 stop27h 31m

$868

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Wed 10/1

9:10 pm-10:08 am

3 stops43h 58m

$415

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Mon 10/13

9:05 pm-11:10 pm

3 stops33h 05m

$420

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Wed 10/8

9:15 pm-11:10 pm

3 stops32h 55m

$421

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/11

Showing 1-10 of 17 results

Best time to book a flight from Lisbon to Denver

Have a flexible travel schedule? Discover the best time to fly to Denver from Lisbon with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Lisbon to Denver

How far ahead should I book a flight from Lisbon to Denver?

To ensure you get the cheapest price possible for a flight from Lisbon to Denver, you should look to book at least 42 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Lisbon to Denver?

Currently, October is the cheapest month in which you can book a flight from Lisbon to Denver (average of $197). Flying from Lisbon to Denver in March is currently the most expensive (average of $278). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost to fly round-trip from Lisbon to Denver?

Reviews of airlines servicing Denver

Get a feel of what it's like to fly with Delta, United Airlines, and British Airways from Lisbon to Denver by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,979 reviews

Reviews

1 / 20

6.0

Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others

Delta

8.0

Very good

7,979 reviews

Delta

8.0

Very good

7,979 reviews

Reviews

1 / 20

6.0

Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others

United Airlines

7.4

Good

8,920 reviews

Delta

8.0

Very good

7,979 reviews

Reviews

1 / 20

6.0

Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others

British Airways

6.7

Okay

7,265 reviews

Delta

8.0

Very good

7,979 reviews

Reviews

1 / 20

6.0

Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others

Related info for your journey

Can I find deals for flights from Lisbon to Denver that include hotel bookings?
Yes. In addition to deals on Lisbon to Denver flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Lisbon to Denver?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Lisbon to Denver.
Can I find deals for business class flights from Lisbon to Denver?
Yes. Cheapflights offers flight deals from Lisbon to Denver by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Lisbon to Denver?
Currently, October is the cheapest month in which you can book a flight from Lisbon to Denver (average of $197). Flying from Lisbon to Denver in March is currently the most expensive (average of $278). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Copper Mountain

Wheat Ridge

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Longmont

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Other flights to Denver

Top 3 airlines flying from Lisbon to Denver

Airline	Cheapest	Average	Flexibility	On-time
British Airways	Cheapest$749	Average$932	FlexibilityNo cancel fee	On-time70%
Delta	Cheapest$758	Average$958	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$766	Average$932	FlexibilityNo cancel fee	On-time69%

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$415+ Cheap flights from Lisbon (LIS) to Denver (DEN)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/1. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Lisbon to Denver with Cheapflights

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2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Lisbon Humberto Delgado to Denver Intl are usually found in October or February, booked 43 days in advance, depart on a Wednesday or Tuesday and return on a Wednesday

Cheap flight deals from Lisbon to Denver

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Lisbon to Denver

Cheapest flights from Lisbon to DenverExplore the most affordable flight options available from Lisbon to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 13, 2025.

Explore the most affordable flight options available from Lisbon to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 13, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Lisbon to Denver that are best for you.

Best time to book a flight from Lisbon to Denver

Have a flexible travel schedule? Discover the best time to fly to Denver from Lisbon with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Lisbon to Denver

How far ahead should I book a flight from Lisbon to Denver?

Use this chart to determine the optimal time to book a round-trip flight from Lisbon to Denver. Price data was last updated on August 8, 2025.

What is the cheapest month to book a flight from Lisbon to Denver?

How much does it cost to fly round-trip from Lisbon to Denver?

Reviews of airlines servicing Denver

Get a feel of what it's like to fly with Delta, United Airlines, and British Airways from Lisbon to Denver by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Lisbon to Denver. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

Can I find deals for flights from Lisbon to Denver that include hotel bookings?

How can I find direct flights from Lisbon to Denver?

Can I find deals for business class flights from Lisbon to Denver?

What is the cheapest month to book a flight from Lisbon to Denver?

Traveling to a place near Denver?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Lisbon to Denver

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Top 3 airlines flying from Lisbon to Denver

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Cheapest flights from Lisbon to Denver
Explore the most affordable flight options available from Lisbon to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 13, 2025.