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Portugal

$238+ 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 7/29. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — LIS
jul. 8 — jul. 151
mar. 7/8
mar. 7/15
1 adult, Economy
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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 julio 3, 2025.

Round-trip from

$534
(Kiwi.com)

One-way from

$238
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$1,069
From Colorado to Portugal
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One-way flight from Colorado to Portugal
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Highest demand for flights based on searches. 17% potential increase in price ($201 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($40 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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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 julio 3, 2025.

This Kiwi.com deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 8/157:55 pmDEN - FAO
1 stop18h 40mMultiple Airlines
vie. 8/229:05 amFAO - DEN
1 stop15h 54mMultiple Airlines
Deal found 7/1$534
This FlightHub deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/24:20 pmDEN - OPO
1 stop13h 30mLufthansa
jue. 12/116:00 amOPO - DEN
1 stop17h 00mLufthansa
Deal found 6/30$597
This United Airlines deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/307:46 amDEN - OPO
2 stops20h 54mUnited Airlines
mar. 12/96:00 amOPO - DEN
1 stop17h 00mUnited Airlines
Deal found 7/1$607
This Air Canada deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/211:15 amDEN - OPO
2 stops41h 00mAir Canada
vie. 12/126:15 amOPO - DEN
2 stops41h 25mAir Canada
Deal found 7/1$613
This Mytrip deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/164:40 pmDEN - OPO
2 stops17h 00mMultiple Airlines
mié. 9/2410:00 pmOPO - DEN
3 stops27h 55mMultiple Airlines
Deal found 7/1$634
This Iberia deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/310:45 amDEN - OPO
2 stops26h 15mIberia
lun. 12/88:40 pmOPO - DEN
2 stops32h 37mIberia
Deal found 7/1$644
This SWISS deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/41:27 pmDEN - OPO
2 stops20h 03mSWISS
mié. 12/1012:10 pmOPO - DEN
2 stops38h 54mSWISS
Deal found 7/1$667
This United Airlines deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 8/176:00 amCOS - LIS
2 stops20h 20mUnited Airlines
vie. 11/1411:20 amLIS - COS
2 stops31h 53mUnited Airlines
Deal found 7/2$669
This Delta deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/1512:20 pmDEN - OPO
2 stops20h 10mDelta
vie. 10/3111:15 amOPO - DEN
2 stops37h 07mDelta
Deal found 7/2$691
This American Airlines deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 8/176:27 amCOS - LIS
2 stops19h 38mAmerican Airlines
vie. 11/148:45 pmLIS - COS
2 stops21h 46mAmerican Airlines
Deal found 7/3$728
This Delta deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 8/178:00 amCOS - LIS
2 stops23h 50mDelta
vie. 11/145:00 amLIS - COS
2 stops23h 20mDelta
Deal found 7/2$730
This Cheapflightsfares deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/149:03 amDEN - FAO
2 stops18h 27mAer Lingus
mié. 10/2211:40 amFAO - DEN
2 stops27h 42mAer Lingus
Deal found 7/1$757

Cheapflights Fare Finder

Customize your flight search to find flights from Colorado to Portugal that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated julio 3, 2025.
Use the filters below to find and compare flights from Colorado to Portugal that are best for you.

Fly from

Colorado

Fly to

Portugal

Route

Depart

Return

Price

DenverFaro

DEN - FAO

DENFAO

Denver Intl

vie. 8/15

7:55 pm-9:35 pm

1 stop18h 40m

Faro

vie. 8/22

9:05 am-5:59 pm

1 stop15h 54m

$534

DenverPorto

DEN - OPO

DENOPO

Denver Intl

mar. 12/2

4:20 pm-12:50 pm

1 stop13h 30m

Porto

jue. 12/11

6:00 am-4:00 pm

1 stop17h 00m

$597

DenverPorto

DEN - OPO

DENOPO

Denver Intl

dom. 11/30

6:00 am-3:15 pm

2 stops26h 15m

Porto

mié. 12/10

6:00 am-4:00 pm

1 stop17h 00m

$607

DenverPorto

DEN - OPO

DENOPO

Denver Intl

mar. 12/2

11:15 am-11:15 am

2 stops41h 00m

Porto

vie. 12/12

6:15 am-4:40 pm

2 stops41h 25m

$613

DenverPorto

DEN - OPO

DENOPO

Denver Intl

mar. 9/16

4:40 pm-4:40 pm

2 stops17h 00m

Porto

mié. 9/24

10:00 pm-6:55 pm

3 stops27h 55m

$634

DenverPorto

DEN - OPO

DENOPO

Denver Intl

mié. 12/3

10:45 am-8:00 pm

2 stops26h 15m

Porto

lun. 12/8

8:40 pm-10:17 pm

2 stops32h 37m

$644

DenverPorto

DEN - OPO

DENOPO

Denver Intl

jue. 12/4

1:27 pm-4:30 pm

2 stops20h 03m

Porto

mié. 12/10

12:10 pm-8:04 pm

2 stops38h 54m

$667

Colorado SpringsLisbon

COS - LIS

COSLIS

Colorado Springs

dom. 8/17

6:00 am-9:20 am

2 stops20h 20m

Lisbon Humberto Delgado

vie. 11/14

11:20 am-12:13 pm

2 stops31h 53m

$669

DenverPorto

DEN - OPO

DENOPO

Denver Intl

mié. 10/15

12:20 pm-3:30 pm

2 stops20h 10m

Porto

vie. 10/31

11:15 am-6:22 pm

2 stops37h 07m

$691

Colorado SpringsLisbon

COS - LIS

COSLIS

Colorado Springs

dom. 8/17

6:27 am-9:05 am

2 stops19h 38m

Lisbon Humberto Delgado

vie. 11/14

8:45 pm-11:31 am

2 stops21h 46m

$728

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/30

Showing 1-10 of 44 results
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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, January is the cheapest month in which you can book a flight from Colorado to Portugal (average of $612). Flying from Colorado to Portugal in June is currently the most expensive (average of $1,130). 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?

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 julio 3, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Colorado to Portugal as you normally would.

Reviews of airlines servicing Portugal

Get insights into the airlines that provide service to Portugal. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Portugal. Reviews last updated julio 3, 2025.
See what other customers who have flown with Delta, KLM, and Air France from Colorado to Portugal have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,982 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,982 reviews
Delta
8.0
Very good
7,982 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,367 reviews
Delta
8.0
Very good
7,982 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air France
7.5
Good
1,465 reviews
Delta
8.0
Very good
7,982 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
SWISS
7.5
Good
1,654 reviews
Delta
8.0
Very good
7,982 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,861 reviews
Delta
8.0
Very good
7,982 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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.

  • What are the cheapest airlines to fly from Colorado to Portugal one-way?

    The cheapest airlines for a one-way flight from Colorado to Portugal are TAP AIR PORTUGAL ($312), United Airlines ($518), and Iberia ($657).

  • 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, January is the cheapest month in which you can book a flight from Colorado to Portugal (average of $612). Flying from Colorado to Portugal in June is currently the most expensive (average of $1,130). 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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Alternative routes for Colorado to Portugal

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Colorado to Portugal

Discover the top 10 airlines that operate flights from Colorado to Portugal. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated julio 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$458Average$676FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$490Average$990FlexibilityNo cancel feeOn-time69%
KLMCheapest$516Average$880FlexibilityNo cancel feeOn-time75%
Virgin AtlanticCheapest$539Average$1,193FlexibilityNo cancel feeOn-time72%
DeltaCheapest$551Average$1,097FlexibilityNo cancel feeOn-timeN/A
Turkish AirlinesCheapest$555Average$686FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$558Average$941FlexibilityNo cancel feeOn-time70%
Air FranceCheapest$569Average$896FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$624Average$1,045FlexibilityNo cancel feeOn-time76%
Air CanadaCheapest$627Average$948FlexibilityNo cancel feeOn-time67%

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