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Find cheap flights from Denver to Portugal from $299

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 11/12. 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 7/4
Thu 7/11

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Best Portugal Flight Deals

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

Lisbon
Lisbon1 stop$459
Porto
Porto2 stops$604
Ponta Delgada
Ponta Delgada1 stop$897
Funchal
Funchal3 stops$778
Faro
Faro1 stop$921
Lajes
Lajes2 stops$839
Porto Santo
Porto Santo2 stops$1,827

Good to know

Low season

January

High season

October

Cheapest flight

$299
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

  • On average*, there is no price difference when choosing to fly in the morning or the evening on this flight route.
  • 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 10732 reviews
7.7Boarding
7.1Entertainment
6.7Food
8.1Crew
7.2Comfort
Airline reviews

Not worth the premium paid for the first class ticket

6.0 GoodMohamud R, Jun 2024DEN - YVR
Read more about United Airlines reviews

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)

Flight was on time. Staff were friendly. I paid for Economy Plus but was required to check my standard carry-on luggage due to lack of space on the aircraft. This cost me 30 minutes, unexpectedly, in waiting at the baggage claim. This experience did not meet my expectations.

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

Missed this flight due to the first AA flight delay

Equipment swap led to 2+ hour delay on international flight. And to top it off, boarding took forever.

Wretched scheduling - they got themselves into a critical crew situation and didn’t try to address it until 15 minutes before they had to cancel my flight

They cancelled two flight and got us onto another airline, which was also delayed.

Nothing, terrible travel experience due to weather and maintenance delays and was left stranded in Austin.

Missed connection from Philadelphia to London because flight from DC was seriously delayed. Was re-routed the next day (had to pay for hotel) to Zurich and was given a main cabin middle seat while I had paid for premium. Great job AA!!!

My husband and I pre-ordered our food, but they did not have my husband’s order, and my cheese plate was very average. I asked for a blanket and was told they don’t carry blankets on domestic routs. The flight was on time and smooth!

28 hour delay at Fort Worth/Dallas airport, part due to weather which was unavoidable, but various other reasons - no pilot, no fa, mechanical problem, plane too small, too big, crew out of flying time, seat configuration problems.... endless and hourly updates with a different excuse. Finally told us about 3.00 am, that the flight was delayed to hours later.

Experience was bad. 3.5 hour delay for a 2.5 hour trip. There was no r Transparency about the reason for the delay and it was done 30 mins at a time.

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

No meal. Flight crew was wonderful, happily finding me storage for my guitar. THANK YOU!!!

My seat was moved multiple times. I picked out the perfect seats beforehand. I even paid extra money for them. However, I was moved to a middle seat without warning at the last minute. It was like my worst nightmare. But other than that, the actual flight was good. Everything was on time or even early and the flight was smooth.

A220 plane had 5 seats across which is great for couples who can snag the A&C seats. Seat itself is borderline comfortable but still tough on a 5+ hour flight. Overhead bins are small so if you're not in at least boarding group 5, you could be in trouble. No included food service. Non-alcoholic drinks are free but even the most basic snacks are for a charge. Price was reasonable for the only direct SEA-YUL flight. Boarding is efficient even managing passport checks. Worth flying for the direct flight.

The original flight from Boston to Toronto was canceled because of a mechanical failure. I was then scheduled on a flight to go from Boston to Montreal and then Montreal to Toronto. The flight was extremely full and I had to check my carry-on bag. When I actually got on the plane there appeared to be room for my bag. I understand the mechanical failures happen. But it was frustrating that they pestered me to check my bag when I don't believe it was necessary. Additionally, not just with Air Canada, modern airline seats are incredibly uncomfortable. There is considerable research that shows that the shape of them is poor for back health.

Unable to initiate refund/reschedule the ticket #worst experience #lost 900$

Flight was delayed for almost 3 hours. Communication of gate change was poor. Email and screen said one gate and it was a different gate from that. Gate changed first to 64 B and then to 64 C. Originally it was 68B. 64C was not communicated properly!

Much better than previous experiences. Overall, it went smoothly after an unexpected delay and gate change.

This was a red eye return, so I doubt there would be anyway to make it better. Other than adding beds.

Direct nonstop flight was great. Flight was delayed and the crew announced a 2h delay on the sound system. 30 min or so later I hear my name on the sound system for immediate board. Several other passangers were late too. Reason: The crew incorrectly announced a 2h delay when in reality they meant a new boarding time at 2pm.

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.

Boston Logan is a crummy airport - signage is terrible or lacking in areas. Boarding seemed to be a free for all and with all the different airlines speaking, you couldn't tell who was supposed to be where and when. Plain and simple, airlines should board from the back of the plane to the front. Also someone was sitting in my seat. By the time that was figured out, I had to place my overhead behind me which made de-planing more difficult. Logan is not Lufthansa's fault so that is not on them, Boarding is on them! Still, overall it was a Good Experience flying with Lufthansa. This is not my first flight with them...

Overall, the flight was comfortable without any serious issues. Transit through Frankfurt airport was a little confusing, but not too difficult if you follow the signs

There was a screaming child behind our seats. This prevented us from getting any sleep during the night.

There was a screaming child just behind our seats. This prevented us from getting any sleep during the night!!

Staff disappeared after dinner service until breakfast, no help with beds, no help running to our gate to catch connection cause flight was late, our luggage didn’t make it, took over 24 hours to get luggage to hotel, no compensation!!

Everything was good except food. I believe there is room for improvement

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.

First time flying with BA and I will do it again. Staff at airport and on board were very nice and helpful

they are improving. The crew from Charlotte to Tampa was outstanding. SMILING and trying to be helpful with the customers.

Wonderful service and very comfy in the bulkhead in Economy Plus! Delicious food.

Book cheap flights from Denver to Portugal

Recent round-trip flight deals

10/15Tue
1 stopBritish Airways
32h 35mDEN-LIS
10/27Sun
1 stopBritish Airways
30h 35mLIS-DEN
$459
12/1Sun
1 stopBritish Airways
35h 50mDEN-LIS
12/4Wed
1 stopBritish Airways
16h 37mLIS-DEN
$569
11/5Tue
1 stopLufthansa
21h 55mDEN-LIS
11/26Tue
1 stopLufthansa
17h 55mLIS-DEN
$583
11/5Tue
1 stopLufthansa
21h 55mDEN-LIS
11/20Wed
1 stopLufthansa
15h 30mLIS-DEN
$584
11/5Tue
1 stopAmerican Airlines
21h 30mDEN-LIS
11/20Wed
2 stopsAmerican Airlines
22h 33mLIS-DEN
$602
11/3Sun
2 stopsAir Canada
21h 20mDEN-OPO
11/12Tue
2 stopsAir Canada
33h 53mOPO-DEN
$604
11/19Tue
2 stopsAir Canada
15h 15mDEN-LIS
11/27Wed
2 stopsAir Canada
19h 52mLIS-DEN
$607
11/5Tue
1 stopUnited Airlines
27h 31mDEN-LIS
11/29Fri
1 stopUnited Airlines
17h 55mLIS-DEN
$613
11/5Tue
1 stopUnited Airlines
27h 31mDEN-LIS
11/19Tue
2 stopsUnited Airlines
23h 25mLIS-DEN
$618
11/4Mon
2 stopsAmerican Airlines
20h 06mDEN-OPO
11/13Wed
2 stopsAmerican Airlines
35h 01mOPO-DEN
$626

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Recent one-way flight deals

11/12Tue
2 stops
24h 50mDEN-LIS
$299
11/13Wed
2 stops
22h 20mDEN-LIS
$302
9/16Mon
2 stops
36h 01mDEN-LIS
$304
11/16Sat
2 stopsUnited Airlines
30h 56mDEN-LIS
$573
11/16Sat
1 stopUnited Airlines
33h 25mDEN-LIS
$586
11/11Mon
2 stopsAmerican Airlines
25h 16mDEN-LIS
$602
11/12Tue
2 stopsAmerican Airlines
27h 51mDEN-LIS
$615
8/20Tue
1 stopBritish Airways
14h 27mDEN-LIS
$659
9/3Tue
2 stopsBritish Airways
23h 21mDEN-LIS
$753
8/31Sat
1 stopLufthansa
24h 15mDEN-OPO
$886

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Last minute flights from Denver to Portugal

Last minute flight, train and bus deals

6/9Sun
multi-stopUnited Airlines
13h 44mDEN-OPO
6/25Tue
multi-stopUnited Airlines
14h 17mOPO-DEN
$902
6/5Wed
multi-stopSWISS
13h 45mDEN-LIS
6/16Sun
multi-stopSWISS
17h 30mLIS-DEN
$970
6/5Wed
multi-stopDelta
16h 05mDEN-LIS
6/15Sat
multi-stopDelta
22h 04mLIS-DEN
$992
6/5Wed
multi-stopDelta
18h 48mDEN-LIS
6/16Sun
multi-stopDelta
16h 55mLIS-DEN
$996
6/5Wed
multi-stopDelta
18h 48mDEN-LIS
6/15Sat
multi-stopDelta
22h 04mLIS-DEN
$1,008
6/7Fri
multi-stop
13h 44mDEN-LIS
6/16Sun
multi-stop
17h 30mLIS-DEN
$1,009
6/7Fri
multi-stopSWISS
22h 20mDEN-LIS
6/16Sun
multi-stopSWISS
46h 59mLIS-DEN
$1,033
6/5Wed
multi-stop
31h 05mDEN-OPO
6/8Sat
multi-stop
21h 16mOPO-DEN
$1,234
6/6Thu
multi-stopAmerican Airlines
25h 10mDEN-LIS
6/16Sun
multi-stopAmerican Airlines
31h 13mLIS-DEN
$1,740
6/9Sun
multi-stopAmerican Airlines
23h 40mDEN-OPO
6/16Sun
multi-stopAmerican Airlines
27h 00mOPO-DEN
$3,706

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Denver - Portugal Flights

Departure:

Denver (DEN)United States

Return flight deals:

Portugal - Denver

Cabin classes: