How long is the flight from Colorado to Portugal?

A quick flight from Colorado to Portugal can take about 13h 25m. United Airlines provides one of the quickest options available for as low as $575. Airlines will cover a distance of 4826 mi. Both multi-stop and nonstop flights can be found to your destination and back.

In terms of precipitation, rainfall in Portugal ranges from 0.2 - 4.8 inches per month. December is typically the wettest month, when rainfall can reach 4.8 in. July is typically the driest time to visit Portugal when rainfall is around 0.2 in.

If weather is an important factor for your trip to Portugal, 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 51.8 F).

Can I find deals for flights from Colorado to Portugal that include hotel bookings?

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

How can I find direct flights from Colorado to Portugal?

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

Can I find deals for business class flights from Colorado to Portugal?

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

$255+ Cheap Flights from Colorado to Portugal

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Find flight deals from Colorado to Portugal

Cheapest flights from Colorado to Portugal
Explore the most affordable flight options available from Colorado to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 26, 2025.

Tue 12/211:15 amDEN - OPO

2 stops17h 50mMultiple Airlines

Tue 12/96:00 amOPO - DEN

1 stop17h 00mMultiple Airlines

Deal found 10/24

$527

Mon 11/2411:15 amDEN - OPO

2 stops17h 50mMultiple Airlines

Tue 12/96:00 amOPO - DEN

1 stop17h 00mMultiple Airlines

Deal found 10/25

$529

Tue 12/24:20 pmDEN - OPO

1 stop13h 30mLufthansa

Tue 12/96:00 amOPO - DEN

1 stop17h 00mLufthansa

Deal found 10/24

$530

Mon 11/245:45 pmDEN - OPO

1 stop14h 10mLufthansa

Tue 12/96:00 amOPO - DEN

1 stop17h 00mLufthansa

Deal found 10/25

$545

Tue 12/96:00 amCOS - LIS

2 stops20h 20mUnited Airlines

Tue 12/165:00 amLIS - COS

2 stops23h 57mUnited Airlines

Deal found 10/25

$549

Mon 11/241:25 pmDEN - OPO

2 stops16h 25mAir Canada

Tue 12/96:00 amOPO - DEN

2 stops33h 53mAir Canada

Deal found 10/25

$553

Wed 11/123:34 pmASE - LIS

2 stops48h 56mUnited Airlines

Mon 11/176:10 amLIS - ASE

2 stops35h 26mUnited Airlines

Deal found 10/25

$554

Mon 12/811:15 amDEN - OPO

2 stops17h 50mMultiple Airlines

Mon 12/151:45 pmOPO - DEN

1 stop31h 50mMultiple Airlines

Deal found 10/24

$566

Mon 12/14:20 pmDEN - OPO

1 stop13h 30mLufthansa

Tue 12/96:00 amOPO - DEN

1 stop17h 00mLufthansa

Deal found 10/25

$568

Wed 12/34:20 pmDEN - OPO

1 stop13h 55mLufthansa

Tue 12/96:00 amOPO - DEN

1 stop17h 00mLufthansa

Deal found 10/25

$574

Wed 11/1912:20 pmDEN - LIS

2 stops19h 15mDelta

Wed 12/311:25 amLIS - DEN

2 stops19h 20mDelta

Deal found 10/24

$575

Tue 12/211:15 amDEN - OPO

2 stops17h 50mMultiple Airlines

Thu 12/116:00 amOPO - DEN

1 stop17h 00mMultiple Airlines

Deal found 10/25

$577

Best flights from Colorado to Portugal
Discover carefully curated flight deals from Colorado to Portugal that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 26, 2025.

Tue 12/96:00 amCOS - LIS

2 stops20h 20mUnited Airlines

Tue 12/165:00 amLIS - COS

2 stops23h 57mUnited Airlines

Deal found 10/25

$549

Wed 2/184:05 pmDEN - OPO

2 stops24h 35mLufthansa

Tue 3/36:00 amOPO - DEN

1 stop17h 00mLufthansa

Deal found 10/26

$575

Mon 12/2911:35 amDEN - LIS

1 stop13h 25mKLM

Tue 1/1310:00 amLIS - DEN

1 stop15h 46mKLM

Deal found 10/25

$575

Wed 3/1812:20 pmDEN - LIS

2 stops20h 15mDelta

Thu 3/2612:20 pmLIS - DEN

2 stops28h 43mDelta

Deal found 10/26

$581

Mon 12/811:15 amDEN - OPO

2 stops17h 50mMultiple Airlines

Mon 12/157:20 pmOPO - DEN

2 stops31h 44mMultiple Airlines

Deal found 10/24

$586

Mon 1/124:30 pmDEN - FNC

2 stops39h 35mBritish Airways

Mon 1/1912:25 pmFNC - DEN

1 stop34h 05mBritish Airways

Deal found 10/24

$640

Sun 1/116:30 amDEN - LIS

2 stops26h 10mScandinavian Airlines

Fri 1/166:55 amLIS - DEN

2 stops23h 00mScandinavian Airlines

Deal found 10/26

$676

Sat 12/67:20 pmDEN - LIS

1 stop36h 45mTurkish Airlines

Wed 12/1011:40 amLIS - DEN

1 stop36h 55mTurkish Airlines

Deal found 10/23

$722

Wed 1/1411:35 amDEN - FNC

2 stops30h 25mTAP AIR PORTUGAL

Wed 1/219:15 pmFNC - DEN

2 stops32h 49mTAP AIR PORTUGAL

Deal found 10/24

$941

Mon 3/237:00 amCOS - LIS

2 stops19h 10mUnited Airlines

Mon 3/306:15 amLIS - COS

2 stops20h 53mUnited Airlines

Deal found 10/26

$550

Mon 1/1212:20 pmDEN - FNC

2 stops62h 10mKLM

Mon 1/1910:25 amFNC - DEN

2 stops38h 44mKLM

Deal found 10/24

$582

Thu 3/197:00 amCOS - LIS

2 stops24h 20mUnited Airlines

Thu 3/265:00 amLIS - COS

2 stops23h 02mUnited Airlines

Deal found 10/26

$550

Wed 11/1212:01 pmASE - LIS

2 stops20h 09mDelta

Mon 11/1710:00 amLIS - ASE

2 stops32h 21mDelta

Deal found 10/25

$621

Wed 4/16:00 amCOS - LIS

2 stops20h 20mMultiple Airlines

Wed 4/87:30 amLIS - COS

2 stops18h 00mMultiple Airlines

Deal found 10/26

$635

Wed 11/123:34 pmASE - LIS

2 stops48h 56mUnited Airlines

Mon 11/176:10 amLIS - ASE

2 stops35h 26mUnited Airlines

Deal found 10/25

$554

Sun 3/228:00 amCOS - LIS

2 stops25h 10mDelta

Mon 3/3012:45 pmLIS - COS

2 stops31h 20mDelta

Deal found 10/26

$634

Sat 3/215:08 pmCOS - LIS

2 stops23h 22mBritish Airways

Sat 3/287:00 amLIS - COS

2 stops22h 25mBritish Airways

Deal found 10/26

$709

Fri 2/2012:20 pmDEN - FNC

2 stops22h 30mKLM

Sat 2/286:40 pmFNC - DEN

2 stops31h 06mKLM

Deal found 10/25

$675

Thu 3/197:00 amCOS - LIS

2 stops24h 20mUnited Airlines

Fri 3/276:10 amLIS - COS

2 stops32h 34mUnited Airlines

Deal found 10/26

$558

Sun 3/1512:59 amDEN - LIS

2 stops25h 01mDelta

Wed 3/255:30 amLIS - DEN

2 stops22h 17mDelta

Deal found 10/26

$640

Wed 4/14:15 pmDEN - FAO

1 stop15h 50mLufthansa

Sun 4/52:00 pmFAO - DEN

1 stop30h 45mLufthansa

Deal found 10/23

$798

Fri 11/1412:18 pmDEN - FNC

2 stops22h 32mKLM

Fri 11/216:00 pmFNC - DEN

2 stops27h 59mKLM

Deal found 10/24

$675

Tue 3/104:00 pmDEN - OPO

1 stop11h 30mUnited Airlines

Thu 3/196:00 amOPO - DEN

1 stop17h 00mUnited Airlines

Deal found 10/25

$573

Thu 11/276:22 amDEN - PDL

2 stops30h 08mMultiple Airlines

Thu 12/115:20 pmPDL - DEN

1 stop31h 49mMultiple Airlines

Deal found 10/25

$766

Fri 2/2012:34 pmDEN - FNC

2 stops20h 21mBritish Airways

Sat 2/284:45 pmFNC - DEN

1 stop29h 45mBritish Airways

Deal found 10/25

$769

Fri 3/2712:25 pmCOS - LIS

2 stops23h 05mDelta

Tue 3/319:50 amLIS - COS

2 stops34h 15mDelta

Deal found 10/24

$676

Sun 3/2911:05 amDEN - TER

2 stops19h 45mAir Canada

Thu 4/21:50 pmTER - DEN

2 stops36h 05mAir Canada

Deal found 10/23

$1,814

Wed 3/114:00 pmDEN - OPO

1 stop11h 30mUnited Airlines

Thu 3/196:00 amOPO - DEN

1 stop17h 00mUnited Airlines

Deal found 10/25

$573

Thu 2/1912:34 pmDEN - FNC

2 stops20h 46mBritish Airways

Sat 2/284:45 pmFNC - DEN

1 stop29h 45mBritish Airways

Deal found 10/25

$769

Sun 3/228:00 amCOS - LIS

2 stops25h 10mDelta

Sun 3/2912:45 pmLIS - COS

2 stops29h 59mDelta

Deal found 10/26

$692

Last-minute flights from Colorado to Portugal
Discover last-minute flight deals from Colorado to Portugal. Data last updated October 26, 2025 and is based on user searches.

Wed 11/123:34 pmASE - LIS

2 stops48h 56mUnited Airlines

Mon 11/176:10 amLIS - ASE

2 stops35h 26mUnited Airlines

Deal found 10/25

$554

Wed 11/124:20 pmDEN - LIS

1 stop14h 00mLufthansa

Mon 11/243:55 pmLIS - DEN

1 stop31h 05mLufthansa

Deal found 10/24

$585

Wed 11/121:25 pmDEN - LIS

2 stops18h 25mMultiple Airlines

Mon 11/243:55 pmLIS - DEN

1 stop31h 05mMultiple Airlines

Deal found 10/24

$591

Tue 11/181:25 pmDEN - LIS

2 stops18h 05mMultiple Airlines

Tue 12/22:10 pmLIS - DEN

1 stop31h 25mMultiple Airlines

Deal found 10/24

$584

Wed 11/1912:20 pmDEN - LIS

2 stops19h 15mDelta

Wed 12/311:25 amLIS - DEN

2 stops19h 20mDelta

Deal found 10/24

$575

Mon 11/2411:15 amDEN - OPO

2 stops17h 50mMultiple Airlines

Tue 12/96:00 amOPO - DEN

1 stop17h 00mMultiple Airlines

Deal found 10/25

$529

Mon 11/245:45 pmDEN - OPO

1 stop14h 10mLufthansa

Tue 12/96:00 amOPO - DEN

1 stop17h 00mLufthansa

Deal found 10/25

$545

Mon 11/241:25 pmDEN - OPO

2 stops16h 25mAir Canada

Tue 12/96:00 amOPO - DEN

2 stops33h 53mAir Canada

Deal found 10/25

$553

Tue 11/2511:15 amDEN - OPO

2 stops17h 50mMultiple Airlines

Tue 12/21:45 pmOPO - DEN

1 stop31h 50mMultiple Airlines

Deal found 10/24

$588

Fri 11/284:20 pmDEN - LIS

1 stop14h 00mLufthansa

Tue 12/96:10 amLIS - DEN

1 stop15h 25mLufthansa

Deal found 10/25

$592

Sat 11/297:26 pmDEN - LIS

2 stops30h 54mAir Canada

Sun 12/1410:50 amLIS - DEN

2 stops38h 13mAir Canada

Deal found 10/24

$589

Sun 11/3012:50 amDEN - OPO

2 stops26h 40mDelta

Thu 12/1111:15 amOPO - DEN

2 stops19h 30mDelta

Deal found 10/25

$591

One-way flights from Colorado to Portugal
Search for one-way flight options from Colorado to Portugal. Find affordable one-way fares based on user searches. Data last updated October 26, 2025.

Sun 11/164:08 pmDEN - LIS

2 stops45h 27mMultiple Airlines

Deal found 10/24

$255

Mon 11/1712:59 amDEN - LIS

3 stops31h 01mMultiple Airlines

Deal found 10/24

$259

Mon 11/1712:59 amDEN - OPO

3 stops32h 11mMultiple Airlines

Deal found 10/25

$266

Mon 11/109:09 amDEN - LIS

2 stops28h 26mMultiple Airlines

Deal found 10/25

$271

Fri 11/79:09 amDEN - LIS

3 stops29h 36mMultiple Airlines

Deal found 10/25

$279

Sat 11/152:32 pmDEN - LIS

3 stops46h 43mMultiple Airlines

Deal found 10/24

$287

Mon 11/179:09 amDEN - OPO

2 stops27h 06mMultiple Airlines

Deal found 10/25

$301

Wed 11/199:09 amDEN - OPO

3 stops40h 16mMultiple Airlines

Deal found 10/25

$307

Wed 11/199:09 amDEN - LIS

3 stops26h 46mMultiple Airlines

Deal found 10/24

$312

Sat 11/152:32 pmDEN - OPO

3 stops40h 43mMultiple Airlines

Deal found 10/25

$337

Thu 11/209:44 amDEN - OPO

3 stops38h 56mMultiple Airlines

Deal found 10/25

$339

Wed 3/47:00 amDEN - FNC

3 stops30h 25mMultiple Airlines

Deal found 10/26

$364

Cheap flight deals from Colorado to Portugal

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$527 (Kiwi.com)
One-way from	$255 (Kiwi.com)
Popular in	June
Cheapest in	January
Average price	$815

Provider with most accurate pricing for Denver Intl-Lisbon Humberto Delgado flight deals.

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Provider most trusted by Cheapflights users for Denver Intl-Lisbon Humberto Delgado flights.

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From Colorado to Portugal

Search Deals

One-way flight from Colorado to Portugal

Search Deals

Highest demand for flights based on searches. 16% potential increase in price ($182 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease ($40 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in October 2025

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Colorado SpringsLisbon

COS - LIS

COSLIS

Colorado Springs

Tue 12/9

6:00 am-9:20 am

2 stops20h 20m

Lisbon Humberto Delgado

Tue 12/16

5:00 am-9:57 pm

2 stops23h 57m

$549

Colorado SpringsLisbon

COS - LIS

COSLIS

Colorado Springs

Mon 3/23

7:00 am-8:10 am

2 stops19h 10m

Lisbon Humberto Delgado

Mon 3/30

6:15 am-8:08 pm

2 stops20h 53m

$550

Colorado SpringsLisbon

COS - LIS

COSLIS

Colorado Springs

Thu 3/19

7:00 am-1:20 pm

2 stops24h 20m

Lisbon Humberto Delgado

Thu 3/26

5:00 am-10:02 pm

2 stops23h 02m

$550

AspenLisbon

ASE - LIS

ASELIS

Aspen Pitkin County

Wed 11/12

3:34 pm-11:30 pm

2 stops48h 56m

Lisbon Humberto Delgado

Mon 11/17

6:10 am-10:36 am

2 stops35h 26m

$554

Colorado SpringsLisbon

COS - LIS

COSLIS

Colorado Springs

Thu 3/19

7:00 am-1:20 pm

2 stops24h 20m

Lisbon Humberto Delgado

Fri 3/27

6:10 am-8:44 am

2 stops32h 34m

$558

DenverPorto

DEN - OPO

DENOPO

Denver Intl

Tue 3/10

4:00 pm-9:30 am

1 stop11h 30m

Porto

Thu 3/19

6:00 am-5:00 pm

1 stop17h 00m

$573

DenverPorto

DEN - OPO

DENOPO

Denver Intl

Wed 3/11

4:00 pm-9:30 am

1 stop11h 30m

Porto

Thu 3/19

6:00 am-5:00 pm

1 stop17h 00m

$573

DenverPorto

DEN - OPO

DENOPO

Denver Intl

Wed 2/18

4:05 pm-11:40 pm

2 stops24h 35m

Porto

Tue 3/3

6:00 am-4:00 pm

1 stop17h 00m

$575

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Mon 12/29

11:35 am-8:00 am

1 stop13h 25m

Lisbon Humberto Delgado

Tue 1/13

10:00 am-6:46 pm

1 stop15h 46m

$575

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Wed 3/18

12:20 pm-2:35 pm

2 stops20h 15m

Lisbon Humberto Delgado

Thu 3/26

12:20 pm-11:03 am

2 stops28h 43m

$581

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/24

Showing 1-10 of 52 results

...

Best time to book a flight from Colorado to Portugal

Have a flexible travel schedule? Discover the best time to fly to Portugal from Colorado 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 Colorado to Portugal

What is the cheapest month to book a flight from Colorado to Portugal?

Currently, November is the cheapest month in which you can book a flight from Colorado to Portugal (average of $511). Flying from Colorado to Portugal in June is currently the most expensive (average of $1,005). 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.

What is the cheapest time of day to fly from CO to PT?

It’s optimal to fly from Colorado to Portugal in the evening. By choosing this option you can save up to 34% on the cost of your flight, compared to a flight at noon.

What is the cheapest day to fly from Colorado to Portugal?

Travelers seeking maximum savings on their Colorado to Portugal flight should consider departing on Wednesday at noon when fares are most often at their lowest. Tuesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Related info for your journey

How long is the flight from Colorado to Portugal?
A quick flight from Colorado to Portugal can take about 13h 25m. United Airlines provides one of the quickest options available for as low as $575. Airlines will cover a distance of 4826 mi. Both multi-stop and nonstop flights can be found to your destination and back.
Can I find deals for flights from Colorado to Portugal that include hotel bookings?
Yes. In addition to deals on Colorado to Portugal flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Colorado to Portugal?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Colorado to Portugal.
Can I find deals for business class flights from Colorado to Portugal?
Yes. Cheapflights offers flight deals from Colorado to Portugal 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 Colorado to Portugal?
Currently, November is the cheapest month in which you can book a flight from Colorado to Portugal (average of $511). Flying from Colorado to Portugal in June is currently the most expensive (average of $1,005). 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

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Colorado to Portugal

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Complete your trip

Portugal car rentals

Madeira car rentals

Azores car rentals

Lisbon Humberto Delgado Airport car rentals

Porto Airport car rentals

Ponta Delgada Nordela Airport car rentals

Lajes Airport car rentals

Lisbon car rentals

Porto car rentals

Funchal car rentals

Ponta Delgada car rentals

Faro car rentals

Top 10 airlines flying from Colorado to Portugal

Airline	Cheapest	Average	Flexibility	On-time
Icelandair	Cheapest$458	Average$666	FlexibilityNo cancel fee	On-time76%
Virgin Atlantic	Cheapest$539	Average$984	FlexibilityNo cancel fee	On-time72%
Turkish Airlines	Cheapest$555	Average$688	FlexibilityNo cancel fee	On-time77%
Air France	Cheapest$569	Average$882	FlexibilityNo cancel fee	On-time77%
Delta	Cheapest$575	Average$956	FlexibilityNo cancel fee	On-timeN/A
British Airways	Cheapest$577	Average$921	FlexibilityNo cancel fee	On-time70%
Lufthansa	Cheapest$582	Average$1,053	FlexibilityNo cancel fee	On-time76%
American Airlines	Cheapest$594	Average$1,267	FlexibilityNo cancel fee	On-time71%
Air Canada	Cheapest$596	Average$926	FlexibilityNo cancel fee	On-time67%
United Airlines	Cheapest$597	Average$1,051	FlexibilityNo cancel fee	On-time69%

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$255+ Cheap flights from Colorado to Portugal

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 11/17. Fares are subject to change and may not be available on all flights or dates of travel.

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Find flight deals from Colorado to Portugal

Cheapest flights from Colorado to PortugalExplore the most affordable flight options available from Colorado to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 26, 2025.

Explore the most affordable flight options available from Colorado to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 26, 2025.

Cheap flight deals from Colorado to Portugal

Keep the following information in mind while searching for Colorado to Portugal flight deals. Data was last updated October 26, 2025.

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

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

Best time to book a flight from Colorado to Portugal

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

Cheapflights Insights

Everything you need to know about your flight from Colorado to Portugal

What is the cheapest month to book a flight from Colorado to Portugal?

What is the cheapest time of day to fly from CO to PT?

Find hourly flight availability from Colorado to Portugal. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 26, 2025.

What is the cheapest day to fly from Colorado to Portugal?

Use this chart to determine the cheapest time to fly round-trip from Colorado to Portugal. Price data was last updated on December 16, 2024.

Related info for your journey

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

How long is the flight from Colorado to Portugal?

Can I find deals for flights from Colorado to Portugal that include hotel bookings?

How can I find direct flights from Colorado to Portugal?

Can I find deals for business class flights from Colorado to Portugal?

What is the cheapest month to book a flight from Colorado to Portugal?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Colorado to Portugal

See prices for flight routes from nearby airports that may be better suited for you.

Top 10 airlines flying from Colorado to Portugal

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Cheapest flights from Colorado to Portugal
Explore the most affordable flight options available from Colorado to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 26, 2025.