Find flights
Deals
When to book
FAQs & Tips
Airlines

Find cheap flights from Denver to Portugal from $261

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Denver to Portugal departing on 8/7. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Thu 7/11
Thu 7/18

Search hundreds of travel sites at once for deals on flights to Portugal

In the last 7 days travelers have searched 44,212,782 times on KAYAK, and here is why:

Save 21% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

Best Portugal Flight Deals

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Lisbon
Lisbon1 stop$582
Porto
Porto1 stop$619
Ponta Delgada
Ponta Delgada1 stop$1,151
Funchal
Funchal2 stops$872
Faro
Faro1 stop$851
Lajes
Lajes1 stop$1,080
Porto Santo
Porto Santo2 stops$1,562

Good to know

Low season

January

High season

October

Cheapest flight

$261
Best time to beat the crowds with an average 38% drop in price.
Most popular time to fly and prices are also 20% lower on average.
Flight from Denver to Lisbon

FAQs - booking Portugal flights

  • I’m flying from Denver to Northern Portugal. What airport should I land at?

    Passengers headed from Denver to the northern region of Portugal should consider looking for flights that land at Francisco Sá Carneiro Airport, just outside the city of Porto. Lufthansa provides a one-stop layover that goes to Munich Franz Josef Strauss Airport (MUC), while a United Airlines one-stop layover goes to Newark Liberty International Airport (EWR).

  • What airport should I use when flying to the Tagus Valley region?

    If you’re flying from Denver International Airport to Portugal to visit the Tagus Valley region, then consider booking flights to Humberto Delgado Airport, just outside the nation’s capital Lisbon. American Airlines offers a layover that stops at Philadelphia International Airport (PHL), while United Airlines has a one-stop layover that goes to Newark Liberty International Airport. In addition, British Airways provides a layover flight that makes one stop at London Heathrow Airport.

  • I’d like to visit the southernmost region of Portugal. What airport should I fly to?

    The Algarve region in the southern part of Portugal is well-known for its beaches. To get there from Denver International Airport, look for layover flights to Faro International Airport. Aer Lingus has a one-stop layover that goes to Dublin Airport (DUB), while Lufthansa has a one-stop layover that goes to Frankfurt Airport (FRA). In addition, United Airlines offers a layover that makes one stop at Newark Liberty International Airport.

  • Where should I fly to when visiting São Miguel in the Azores?

    São Miguel is the largest island in the Azores region of Portugal. If you’re headed there from Denver, consider looking for layover flights to Aeroporto João Paulo II (PDL), located near the capital city of Ponta Delgada. JetBlue and Azores Airlines offer a combined one-stop layover that goes to Boston Logan International Airport (BOS), as well as a slightly faster one-stop layover that goes to New York John F Kennedy International Airport (JFK).

  • How does KAYAK find such low prices on flights from Denver to Portugal?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Denver to Portugal.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Denver to Portugal?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Portugal from Denver is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Denver to Portugal?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Portugal with an airline and back to Denver with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Denver to Portugal?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Portugal from Denver up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding cheap flights to Portugal

  • Morning departure is around 11% more expensive than an evening flight, on average*.
  • United States citizens with a valid passport that has two blank pages and at least three months of validity past their departure date can travel to Portugal for up to 90 days, without needing a visa.
  • Headed to the islands of Madeira in Portugal? If so, consider looking at layover flights from Denver Airport to Cristiano Ronaldo Madeira International Airport (FNC). British Airways provides one-stop layovers that go to London Heathrow Airport (LHR).
  • The Beiras region of central Portugal doesn’t have any airports itself. However, it’s roughly halfway between Francisco Sá Carneiro Airport (OPO) in Porto to the north and Humberto Delgado Airport (LIS) in Lisbon to the south, so layover flights to either airport are convenient.
  • Denver International Airport (DEN) features a variety of accessible services and facilities for passengers with reduced mobility. These include accessible parking spaces, restrooms, elevators, wheelchairs upon request, and recognition of hidden disabilities through the Sunflower Lanyard program.
  • Although there are no airports in the Alentejo region of southern Portugal, Lisbon Humberto Delgado Airport is to the northwest and Faro International Airport (FAO) is to the south. Depending on where you’d like to go, layover flights to either airport will put you within a car ride or bus ride to the region.
See more tips
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

Top 5 airlines serving from Denver to Portugal

Need help choosing which airline to fly with from Denver to Portugal? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 10629 reviews
8.1Crew
6.7Food
7.2Comfort
7.7Boarding
7.1Entertainment
Airline reviews

No real agent onsite helping you for missing luggage there. Not like the other airline next to UA desk, they have staff attending in their desk assisting answer/helping luggage issue, even after midnight.

2.0 MediocreAnonymous, Jun 2024DEN - MSN
Read more about United Airlines reviews

No real agent onsite helping you for missing luggage there. Not like the other airline next to UA desk, they have staff attending in their desk assisting answer/helping luggage issue, even after midnight.

Not worth the premium paid for the first class ticket

We liked the fully reclinable seats. Had center seats, so it was difficult to talk to spouse. Crew was great

Fine. Though no food or entertainment so the survey needs to be updated with those options.

This was a flight operated by Lufthansa. See me prior comments, which were meant for this experience. The CSA, Ashley, should be reprimanded if not fired for incompetence, being rude, and very, very slow. She was whispering to other CSAs, blaming my flight change on others, unable to give me a seat assignment, telling me could not help without offering any advice (I travel 200,000 miles a year and am a consultant to the airlines, so I know how this gets done PRETTY DAMN WELL). Then, she gave me literally the worst seat on the airline (yes, there were other seats open) - the one right next to the bathroom that was so bad the other PAX next to me left to move to another seat. My seat kept getting rammed (3x) by the crew with their carts (no turbulence to speak of), other passengers grabbing the seat to get in or out of the bathroom, and listening to the bathroom flush all night.

Generally good but there wasn’t any staff available when my luggage didn’t appear at baggage claim in Fresno. It took about half an hour to locate a staff member to open up the locked room where it was being kept.

Flight delayed from Cape Town to Washington then got diverted to miami and in miami we had to fend for ourselves , im still trying to get to Shreveport now

I just wrote a text which was supposed to be for the flight from Denver to spokane not Frankfurt to Denver.

Good dinner and nice plane.Smootz flight. Breakfast had no sweet option. Seats hardly reclined.

Too many fees (but that seems to apply to all airlines nowadays)

Paid for premium economy had no tv the whole time the crew tried to reset/reboot but would not work they said they would put a trouble ticket in for it. We had 3 seats my tv was the only one that didn't work. They cancelled our flight re worked us on another that left us at airport over night on the floor I have a ten year old and a 78 diabetic mother which also had shingles and suffers from nerve pain in legs and back. Requested wheelchair service at all airports after the re route NO wheelchair service was there to help. WORST experience we have ever had. Went to American airlines assistance it was closed. I AM FURIOUS!!! I expect some sort of compensation from this traumatic experience and no need for flying points we don't plan on using American airlines again!!!!

This is by far the worst experience I have had with American Airlines. The start of this trip was a complete disaster. I purposely planned my trip so that I would weather any delays so that I could make very important meeting at the Pentagon. My flight was cancelled because of maintenance and I was put on the first flight the next day but I was late to the meeting. After a long week at the Pentagon I just wanted to go home and my flight home which was early in the day was delayed. Eventually the flight was delayed until the next day. I was not authorized a hotel room because DCA was my point of origin. So I paid for a hotel out of pocket. The flight this morning was boarded then deplaned because the aircraft was hot. The flow of information was not happening in DCA and made it worse when the news was bad. I am going to take a break from American for my next few military flights. Hopefully whatever has been going on with American Airlines will be resolved.

We had a 2 hour delay. The seats were smaller than most other airlines. The person in front of us wanted to lay back and we had to stop her because she was pressing against my girlfriend’s legs. We had to ask her to sit up and not lay back due to the lack of room.

Information when booking said the flight would be with American Airlines but the flight was actualy with British Airways. Check in from Orlando was nice and quick. I agreed to put my cabin case in the checked luggage as it was a full flight. Case came back damaged (unable to put the handle down) so will have to dispose of it. Seats were quite cramped with very little leg room, even for economy. This was the experience of both the outgoing and return flight. Cabin crew were ok and flight time was punctual.

Everything was fine once we actually got on our flight. It was more then annoying they canceled (delayed) our flight. We lost out on a day of our trip along with money on our stay. Plus we had to book another hotel. So expensive.

This flight was canceled and delayed several times without explanation. The plane was freezing cold and no wifi for messaging. Getting off the plane was terribly unorganized and felt like it took forever….

The flight was delayed several times without explanation. The seats were terribly uncomfortable and wifi isn’t included. All these make for a less than ideal flight.

The flights was delayed by hours and it was the firmest landing I have experienced in my life. My back is still sore.

Internet service was erratic. Crew service was poor and slow. My luggage on this non-stop flight was lost and not recovered

Terrible. I didn’t fly and I had an important meeting the next day.

There was a mistake with the first name we only discovered at security. Air canada was unable to correct it to match then passport since it was booked through an agency. The agency could not correct it either since they need at least two hours to do that. We could not fly and lost a bunch of money. Learned my lesson about kayak.

My flight got canceled. Then AC rebooked me to a next day flight. No compensation no apology. It almost messed up my entire trip and schedule. However, all the unexpepected seems routine and ordinary to AC, so customers need to get used to.

The food was horrible the flying attendance hardly made any checks and the seats were very tied ..

I love air Canada. The staff is so helpful and friendly and attentive. I paid for extra room but chose a ser near a person who took up a lot of space which gave me less space than regular economy, I was sad I did that!

I appreciated the flight was on schedule but the crew told us that the flight would be delayed because of an air craft queue to take off. Instead of us arriving at 11.55pm, we were in Toronto at something past 2am which was a massive disadvantage on my part.

For such a long flight they should offer tea or coffee in between two meals.

No seat assignment . Last on board . Though I would not receive any boarding pass

last minute was rebooked. This rebooking made me miss my connection, added a stop in my itinerary without my approval, and had me arriving 10 hours later to my destination...for a delay that was 2 hours. To boot, my final flight from London to Athens booked me in a middle seat, where I originally booked all aisle seats. This was incredibly uncomfortable for a 24 hour journey and made me incredibly upset.

Did not appreciate “hidden fees” to check a bag for international flight and purchase a seat to be next to my spouse. Won’t choose this airline again.

The flight left over 2 hours late and caused me to miss my connecting flight. Consequently, I missed my cruise ship out of Barcelona. The cost associated with this miss was as follows: Airfare to Sicily Italy to get on the ship TWO days late - $232.30 Taxi from Airport to hotel $35 Dinner at hotel $38 Hotel in Barcelona - $208 Taxi from Sicily to hotel $70 Hotel in Sicily - $148 Prorated time missed on cruise $ 1,143

United delayed the flight to assist customers to make the connection. The Ohara customs area was overwhelm which created an issue for customers trying to make the Little Rock connection. The delayed allow several customers to make the final flight into Little Rock.

Missed our flight to London and we were put on coach seats to Munich.

Terrible. Missed our flight to Newark as well as our flight to London. Complete disaster

They canceled our flight last minute and we had to get another flight with twice the cost

Dinner was excellent - beef stew, the eggs for breakfast were only ok. It was soooo nice that there were so many options for movies and games.

Captain waited 45 minutes for late passengers boarding from Washington DC to Munich which was nice for them but caused our luggage to miss boarding our connection on to Bucharest. We then did not receive our luggage for about 48 hours after landing which was very inconvenient for our travel.

Poor, we had 1 hour to grab our checked luggage, go through customs, recheck bags and run across terminals to make our United flight. Poorly planned connections.

Check in in Albuquerque was awful. The people were great but they were over loaded. The procedures were terrible. We got through fine but it took 90+ minutes.

Will try to not fly with them again. Delays because of weather but got redirected to an airport where I could not make connection.

Staff didn’t care in business class. Closed the door on my mom while she was on the jetbridge and flight attendant told me she would make it from the connecting flight. They lied. My luggage was damaged on arrival. No success in filing damage claim.

Economy class has no legroom so if you have the money worth to upgrade! Food was absolutely horrible! The crew was super nice!!!!!

The flight was provided by Aer Lingus and our seats were in a poor condition (15A & 15C). They looked like they needed repairing/replacing and were uncomfortable for such a long flight. Also the arm rests on Aer Lingus planes do not lift more than around 45 degrees, instead of the usual 90 degrees upright, meaning you cannot maximum the space between you & your travel companion so as to be more comfortable for such a long flight.

Flights were actually with Aer Lingus outward and American Airlines & Aer Lingus on the return journey. Outward flight with Aer Lingus was good but the return flight with them was not so good as our seats were in a poor condition (15A & 15C) and looked like they needed replacing! The American Airlines flight from Miami to JFK New York was good and the seats were very comfortable and spacious (32D & 32E)

Awful. Delay, lost vacation time and travel time now more than 24h

Awful. Flight delayed and we missed our long flight to Rome. It has been a nightmare and we have still not arrived. It was NOT a weather delay, just poor planning by AA

Boarding was as fast and efficient as possible. The flight crew were amazing and extremely friendly. We enjoyed our flight.

Very bed boarding, there was overbooked and make a lot of problems and noises

There was a problem in the luggage because there were not porters

On my way from Chicago to London, I was seated next to a quite heavy passenger. I could barely move. BA should have ensured that overweight customers are placed in comfortable seats and not to penalize also other passengers because BA is not willing to accommodate these passengers and their needs. No respect at all.

The flight as far as timings go was excellent. Unfortunately we ended up sat with someone on a night flight who had been drinking alcohol before boarding and BA staff were happily serving him more alcohol. He was very drunk which made our flight uncomfortable and awkward. My partner had this person lying on him whilst asleep. Alcohol should be served minimally. If there had been an emergency this person would not have been in a fit state to act accordingly.

Book cheap flights from Denver to Portugal

Recent round-trip flight deals

10/30Wed
1 stopLufthansa
24h 05mDEN-LIS
11/8Fri
1 stopLufthansa
15h 30mLIS-DEN
$582
11/26Tue
1 stopLufthansa
14h 15mDEN-LIS
12/10Tue
1 stopLufthansa
17h 55mLIS-DEN
$583
11/19Tue
1 stopAir Canada
14h 15mDEN-LIS
11/28Thu
2 stopsAir Canada
32h 19mLIS-DEN
$595
11/18Mon
1 stopAir Canada
16h 27mDEN-LIS
11/28Thu
2 stopsAir Canada
28h 53mLIS-DEN
$601
11/6Wed
1 stopUnited Airlines
17h 05mDEN-LIS
11/13Wed
1 stopUnited Airlines
15h 30mLIS-DEN
$602
11/5Tue
1 stopBritish Airways
14h 40mDEN-LIS
11/21Thu
1 stopBritish Airways
19h 07mLIS-DEN
$603
11/5Tue
1 stopBritish Airways
14h 40mDEN-LIS
11/22Fri
1 stopBritish Airways
15h 15mLIS-DEN
$612
11/27Wed
2 stopsUnited Airlines
18h 55mDEN-LIS
12/4Wed
2 stopsUnited Airlines
18h 43mLIS-DEN
$614
11/2Sat
1 stopAmerican Airlines
17h 35mDEN-LIS
11/9Sat
2 stopsAmerican Airlines
18h 57mLIS-DEN
$708
9/3Tue
1 stopAmerican Airlines
21h 25mDEN-LIS
9/10Tue
1 stopAmerican Airlines
17h 49mLIS-DEN
$829

Search by stops

Search by airline

Search by price

Recent one-way flight deals

8/7Wed
2 stops
51h 24mDEN-LIS
$261
7/23Tue
1 stop
30h 20mDEN-LIS
$292
9/18Wed
1 stopLufthansa
14h 30mDEN-LIS
$646
9/18Wed
2 stopsUnited Airlines
17h 30mDEN-LIS
$672
9/18Wed
2 stopsUnited Airlines
17h 30mDEN-LIS
$687
9/3Tue
1 stopBritish Airways
16h 20mDEN-LIS
$749
9/3Tue
2 stopsBritish Airways
24h 02mDEN-LIS
$753
8/21Wed
1 stopLufthansa
24h 15mDEN-OPO
$813
6/23Sun
2 stopsAmerican Airlines
39h 20mDEN-LIS
$955
7/31Wed
2 stopsAmerican Airlines
25h 10mDEN-LIS
$1,222

Search by stops

Search by airline

Search by price

Last minute flights from Denver to Portugal

Last minute flight, train and bus deals

6/16Sun
multi-stopSWISS
22h 15mDEN-LIS
6/24Mon
multi-stopSWISS
17h 25mLIS-DEN
$922
6/16Sun
multi-stopSWISS
22h 15mDEN-LIS
6/24Mon
multi-stopSWISS
17h 25mLIS-DEN
$932
6/12Wed
multi-stopUnited Airlines
11h 55mDEN-LIS
7/3Wed
multi-stopUnited Airlines
14h 33mLIS-DEN
$1,088
6/15Sat
multi-stopBritish Airways
18h 28mDEN-LIS
6/21Fri
multi-stopBritish Airways
27h 54mLIS-DEN
$1,425
6/15Sat
multi-stopBritish Airways
14h 40mDEN-LIS
6/21Fri
multi-stopBritish Airways
33h 59mLIS-DEN
$1,580
6/15Sat
multi-stopLufthansa
14h 30mDEN-LIS
6/21Fri
multi-stopLufthansa
30h 55mLIS-DEN
$1,639
6/15Sat
multi-stopLufthansa
22h 35mDEN-LIS
6/21Fri
multi-stopLufthansa
30h 55mLIS-DEN
$1,840
6/13Thu
multi-stopUnited Airlines
13h 15mDEN-PDL
6/17Mon
multi-stopUnited Airlines
12h 58mPDL-DEN
$2,071
6/15Sat
multi-stopAmerican Airlines
49h 10mDEN-LIS
6/23Sun
multi-stopAmerican Airlines
39h 45mLIS-DEN
$2,227
6/13Thu
multi-stopAmerican Airlines
23h 40mDEN-OPO
6/16Sun
multi-stopAmerican Airlines
18h 39mOPO-DEN
$10,634

Search by stops

Search by airline

Search by price

Denver - Portugal Flights

Departure:

Denver (DEN)United States

Return flight deals:

Portugal - Denver

Cabin classes: