$250 Find Cheap Flights from Austin to Portugal

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Austin to Portugal departing on 4/26. 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
1 adult, Economy, 0 bags

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Cheap Flights from Austin to Portugal

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Lisbon
Lisbon1 stop$486
Porto
Porto2 stops$492
Faro
Faro2 stops$603
Ponta Delgada
Ponta Delgada2 stops$824
Funchal
Funchal1 stop$648
Lajes
Lajes2 stops$1,387
Lisbon
Lisbon1 stop$486
Porto
Porto2 stops$492
Faro
Faro2 stops$603
Ponta Delgada
Ponta Delgada2 stops$824
Funchal
Funchal1 stop$648
Lajes
Lajes2 stops$1,387

Book Cheap Austin to Portugal Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Austin to Portugal that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Austin to Portugal

Tue, Mar 3 - Tue, Mar 10
Multiple Airlines Logo
4:10 pm - 2:30 pm
AUS
-
LIS
16h 20m
1 stop
Multiple Airlines Logo
5:00 am - 12:19 pm
LIS
-
AUS
36h 19m
2 stops
$486Multiple Airlines
Mon, Apr 27 - Tue, May 5
United Airlines Logo
7:15 am - 10:30 am
AUS
-
LIS
21h 15m
1 stop
United Airlines Logo
11:25 am - 4:20 pm
LIS
-
AUS
34h 55m
2 stops
$488United Airlines
Wed, Feb 25 - Wed, Mar 4
KLM Logo
11:45 am - 8:40 am
AUS
-
LIS
14h 55m
1 stop
KLM Logo
11:25 am - 4:10 pm
LIS
-
AUS
34h 45m
1 stop
$489KLM
Tue, Apr 21 - Thu, May 7
United Airlines Logo
9:50 am - 9:45 am
AUS
-
OPO
17h 55m
2 stops
United Airlines Logo
6:00 am - 1:04 pm
OPO
-
AUS
37h 04m
2 stops
$492United Airlines
Mon, Mar 2 - Wed, Mar 11
KLM Logo
1:56 pm - 8:00 am
AUS
-
LIS
12h 04m
1 stop
KLM Logo
5:00 am - 6:57 pm
LIS
-
AUS
18h 57m
2 stops
$499KLM
Wed, Apr 29 - Sat, May 9
Delta Logo
10:19 am - 8:00 am
AUS
-
LIS
15h 41m
2 stops
Delta Logo
5:00 am - 9:08 pm
LIS
-
AUS
22h 08m
2 stops
$502Delta
Sun, Apr 26 - Sat, May 9
British Airways Logo
3:44 pm - 10:20 am
AUS
-
FAO
36h 36m
2 stops
British Airways Logo
8:00 pm - 3:25 pm
FAO
-
AUS
25h 25m
1 stop
$603British Airways
Sun, Apr 26 - Sat, May 9
British Airways Logo
5:40 pm - 2:45 pm
AUS
-
FAO
39h 05m
2 stops
British Airways Logo
8:00 pm - 8:35 pm
FAO
-
AUS
30h 35m
1 stop
$604British Airways
Fri, May 1 - Tue, May 19
American Airlines Logo
4:44 pm - 4:00 pm
AUS
-
OPO
17h 16m
2 stops
American Airlines Logo
8:20 am - 10:50 pm
OPO
-
AUS
20h 30m
2 stops
$609American Airlines
Fri, May 1 - Tue, May 19
American Airlines Logo
4:44 pm - 4:00 pm
AUS
-
OPO
17h 16m
2 stops
American Airlines Logo
12:25 pm - 10:50 pm
OPO
-
AUS
16h 25m
2 stops
$707American Airlines
Booking Insights

KAYAK's insights & trends for Austin to Portugal flights

Get data-powered insights and trends into flights from Austin to Portugal to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Austin to Portugal?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Austin to Portugal, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Austin to Portugal is February, when tickets cost $646 (return) on average. On the other hand, the most expensive months are May and June, when the average cost of round-trip tickets is $1,268 and $1,266 respectively.

How far in advance should I book a flight from Austin to Portugal?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Austin to Portugal, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Austin to Portugal, you should book around 2 weeks before departure, which saves you about 35% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$250
Best time to beat the crowds with an average 6% drop in price.
Most popular time to fly with an average 12% increase in price.
Flight from Austin to Porto

FAQs - booking Portugal flights

  • Do I need to have a visa to fly from Austin to Portugal?

    You will only be required to apply for a visa when flying from Austin to Portugal when you plan to stay in the country for over 90 days. Otherwise, U.S. citizens won't need to worry about obtaining visas and will only need to have valid passports with them to enter Portugal.

  • Where do flights from Austin to Portugal typically stop along the way?

    Flights from Austin to Portugal might make stops at any number of different airports while flying to their final destinations. Several airlines routinely used for layovers on this flight path include Philadelphia International Airport (PHL), Dulles International Airport (IAD), and London Heathrow Airport (LHR).

  • Which airlines that fly from Austin to Portugal provide the best food?

    You'll eat at least one or two meals on most flights from Austin to Portugal, so you should make sure these meals will be good. British Airways offers a "Dine Anytime" menu filled with fine dining dishes that are prepared with quality in mind.

  • What steps can I take to make flights from Austin to Portugal eco-friendly?

    If you'd like to make your flight from Austin to Portugal as eco-friendly as possible, flying with an airline like American Airlines or United Airlines can help you do it. These airlines have committed to eliminating carbon emissions by 2050, and they plan to do it by upgrading their aircraft and doing away with single-use plastics on flights.

  • How does KAYAK find such low prices on flights from Austin 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 Austin to Portugal.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Austin to Portugal 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 Austin 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 from Austin to Portugal with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Austin 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 from Austin to Portugal up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding cheap flights to Portugal

  • Even though Austin-Bergstrom International Airport (AUS) is nearly 5,000 miles from Portugal, you should still be able to find plenty of airlines that can take you there. American Airlines, British Airways, Delta, Iberia, and United Airlines can all assist you.
  • As you explore flights from Austin to Portugal, you might want to start by picking out the airport in Portugal you wish to fly into. If you'll be visiting Portugal's capital Lisbon, Humberto Delgado Airport (LIS) will be the best choice. However, you should also consider Ponta Delgada - João Paulo II Airport (PDL) on the São Miguel island, along with Francisco Sá Carneiro Airport (OPO) near Porto and Madeira International Airport (FNC) near Santa Cruz.
  • Although nonstop flights from Austin to Portugal will be few and far between, you should be able to find one-stop flights that won't take too much time compared to two- and three-stop flights. United Airlines has one-stop flights from Austin-Bergstrom International Airport (AUS) to Humberto Delgado Airport (LIS).
  • Those taking long flights from Austin to Portugal should search for first-class tickets they can afford. Anyone who flies first class with an airline like American Airlines will receive a private suite with a lie-flat seat and enough in-flight entertainment options to ensure you don't ever get bored. You'll also receive fine dining options that you won't get in economy class.
  • Austin-Bergstrom International Airport has lounges you can use in your spare time as you wait for your flight to Portugal to board. From the Delta Sky Club that will be reserved for Delta customers to the Chase Sapphire Terrace that those flying with any airline can access, you will have plenty of options to explore.

Reviews of the top 5 airlines serving from Austin to Portugal

 
Need help choosing which airline to fly with from Austin 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.
7.9
DeltaOverall score based on 8127 reviews
8.5Crew
7.2Food
8.1Boarding
7.9Comfort
7.8Entertainment
Airline reviews

Timing, quality of service, promptness and courtesy of the staff

10.0 ExcellentAjai, Jan 2026
DFW - ATL
Read more Delta reviews

Timing, quality of service, promptness and courtesy of the staff

It was last minute due to weather - considering - it was amazing! Good smiles, friendly staff and they were making sure we knew what was going on when and where.

delta last minute gave me a boarding pass for a different flight with no confirmation that they were changing it

The flight was comfortable and uneventful, which is what I desire

The service from the flight attendants were of supreme quality. They greeted and treated everyone with a wide smile. This is totally absent nowadays. Kudos to them!!!!

Excellent flight and got us around tough weather. Only issue was seat TV did not work and crew tried to reboot.

Very large passenger too space from my own seat. Arm board couldn’t be lowered because of his size. It wads very uncomfortable trip, as the flight was full couldn’t move anywhere having back pain because of the position in which I was the entire flight.

was sitting in the jet bridge for 10 minutes in -20 degree weather waiting for my bag

Outdated equipment in disrepair, wifi inoperable. Broken seats, taped air vents, generally poor condition, the 717 showed its age and lack of upkeep.

My flight out of Baton Rouge to Atlanta was delayed by a half hour. This got us into Atlanta airport 30 minutes late. I ran through the airport to get to my connecting flight. As I approached the boarding gate, I saw the boarding door was still open and a passenger was being checked in. But when I got to the gate, the boarding agent told me they had already given away my seat and there were no empty seats on that flight. So I had to take a later flight. That has never happened to me before. Very frustrating.

Terrible last row seats many seats available but no offer to move to better seat

Delay on my previous leg, had to run to catch my flight. But that happens. Overall ok.

Delay and had to run between flight to get my connection due to this delay but besides that the overall experience was ok. I arrived with just an hour of delay.

They forgot to serve food and the crew was very unfriendly. Never experienced such a bad KLM flight. Usually fly from Toronto. New York was different.

Couldn’t get boarding pass in SLC even with help from a redcoat, so had to find a desk in AMS to get boarding pass. Technical problems so not sure why. Very inconvenient. The KLM app is not as user friendly as most apps. Also had to wait almost an hour on the tarmac for a fuel truck, which caused us to miss a connecting bus in LUX.

The immigration hall in Amsterdam was understaffed, so passport checking was slower than it should be for a major airport. They need to get the automatic readers up and running for non EU passport holders. Waiting in line after a long flight feels a bit abusive.

Over 1 Hr delay. No APU so no AC on ground. Plane was hot during boarding and then they closed the doors over 20 minutes before engine start so interior of plane was steamy hot and stuffy. Could have been helped by opening doors until ready to depart.

First of all we couldn’t check in online, then we learn at the airport we were on stand by for KLM’s mistake of overbooking. The seats were not comfy at all. Our luggage got lost.

Ad experience - been flying many years with them but they are losing out to other carriers with their service and bagage / seating policy. My 2 12-yo kids were not placed with the parent. Absurdity.

KLM remains a quality flag carrier airline which maintains its standards whilst all their competitors are lowering theirs.

Delayed, toilets did not flush, pilot parked to far away from Gate

I like flying first class, and United has a nice one

Unbelievably poor service from flight attendants. They didn’t even do water service on a four hour flight. Just disrespectful.

Seats had less pitch than a regional jet. Food was OK. Have to buy alcohol on US based carriers flying international. Boarding was a mess. Did not have bags but overhead space was gone quick. Would like to see the airlines enforce the one bag over and one bag under policy

Lately I like the planes have been exceptionally filthy. There’s lines of dust and dirt all across the ceiling in the vents, and the cracks in between the seats are literally full of food. It’s definitely not the quality of service that I was used to with United. I’m also very disappointed with the Wi-Fi! All I wanna do is knock out a few work jobs while I’m trapped in my seat And it spools so bad. They did provide me with a refund, but the process of getting that refund is so complicated. It’s unfortunate.

Crew was excellent. This was a relatively long flight though and had very little leg room, and no entertainment.

The newer screen was super cool and had the option to watch many different shows or movies. Crew was polite and helpful. However again, many children screaming bloody murder and kicking my seat, and parents doing nothing about it as usual.

Flight was good and crew was super polite. However, there were around 5 kids screaming the WHOLE 2 hours. I understand kids have to come but parents need to do something to control their children. They make the experience terrible, especially after finishing 16 hour shifts at the hospital I needed some sleep, which I did not get.

Plane was crowded and even when we hit altitude, the plane was hot, not enough air flow.

Flight was delayed and missed my connection Lufthansa didn’t respond.

Flight was canceled. I asked to be rerouted to OKC and then took an Uber.

AA did not allow to board a flight because my connecting flight from DFW had been canceled. I got on another flight to another city. No service on the plane and I did not use their entertainment system.

I booked an aisle seat and was given a middle. At 6'4" 230lbs, it is not ideal to fly in the middle row for myself and passengers.

Concern Regarding Significant Gate Delay and Jet Bridge Issue Dear Customer Relations Team, I am writing to express my disappointment with the experience I had on my recent flight AA 2414 on Sunday January 18, 2026. What should have been a routine departure turned into a frustrating and avoidable delay due to an issue with the jet bridge at the gate. As a result, the flight was delayed by approximately 90 minutes while multiple gate changes were attempted. The lack of clear communication during this period made the situation even more challenging. Passengers were left uncertain about the cause of the delay, the expected timeline, and the next steps. This not only disrupted travel plans but also created unnecessary stress for everyone on board. I understand that operational issues can arise, but a malfunctioning jet bridge and the resulting extended delay suggest an area where procedures or equipment maintenance may need attention. I hope you will review this incident to prevent similar disruptions in the future. I would appreciate acknowledgment of this concern and consideration of appropriate compensation for the inconvenience and lost time caused by this delay. Thank you for taking the time to review my experience. I look forward to hearing from you. Sincerely, Dion Dillard

They made me pay $40 to check a bag that was listed as free when I bought my ticket. Then before boarding they offered to check any bags free.

The seat cushions were very worn so they were extremely uncomfortable.

Delayed, no updates, had a rewards number but was not working

AA should improve their in air internet & entertainment options. Seems unreasonable to charge $20/hr and should have some form of free connections. The entertainment options are also pretty limited, movies are outdated and the series only show 3-5 episodes.

The professionals have excellent customer service, the seats don´t have enough space.

Flight delay and multiple gate changes including a change near boarding time to another terminal, which in DFW is a pain. Pre-boarding delay and also a further delay on the ground after boarding. About an hour and a half total delay.

The issue was not with BA it was with the link yoiu sent fopr booking the flight

Loved the boarding option from Business class lounge, experience on flight was excellent, plenty of good food choices

Getting the boarding passes between the BA and AA apps was very clunky.

The airline was not clear about a new departure time so we got to the airport early anyway. The flight left early which was great because of weather. The check in process was very easy and staff were friendly and helpful. The crew was great and our flight was very good.

Awful it always is unfortunately is the only way to fly direct to london

I travelled in business class and was disappointed by lack of service, curt and borderline rude time of the crew and to top it off, all of my luggage was delayed. It was like pulling teeth to even report the missing luggage and recover it the next day from the airport.

Plane was extremely delayed, but not all of it was BA fault (some was). Worst part was lack of room - this had as much space as an Allegiant flight. I thought transatlantic usually gave you an extra inch or two, but not this one. Entertainment system sporadically worked and didn’t have great options. Overhead bins are old and tiny, not as good as aunties new planes.

Boarding was poor. All groups called immediately one after the other resulting in a long queue in the jetty/jet bridge. Seats were very hard and and did not recline on a 4.5 hour flight. No food was available. Plane was cold. There was no entertainment.

Horrible leg room - coach seating with empty seat in middle on a 3 across seating. You buy business class for comfort which includes leg room. Absolutely no entertainment options either. Awful experience

Super tight economy class. My knees were hitting the back of seat in front of me (I'm only 5'6"). My small backpack (sized according to their required dimensions) would not fit under the seat in front of me because there is a box (is that the life jacket?) in the way. Over all, extremely uncomfortable. I forgive the tasteless food, but the tight seating was torture

Everything you need to know for your flight from Austin to Portugal

Information on your arrival and departure airports