$374 Find Cheap Flights from Portugal to Austin

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Austin departing on 1/16. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Austin

 
These are the airlines KAYAK users have selected most often from within our search results for flights to Austin, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to Austin, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$823
United Airlines
Fri 2/13Tue 2/17
OPO - AUS • 2 stops
Cheapest one-way
$374
Typical prices: $741-$894
Multiple Airlines
Fri 1/16
LIS - AUS • 3 stops
When to travel
May
Cheapest • 19% price drop
December
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Austin!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Portugal to Austin

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Portugal to Austin 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 Portugal to Austin

Fri, Feb 13 - Tue, Feb 17
United Airlines Logo
6:00 am - 8:44 pmOPO-AUS
20h 44m2 stops
United Airlines Logo
4:10 pm - 2:45 pmAUS-OPO
16h 35m1 stop
$823United Airlines
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Fri, Feb 13 - Tue, Feb 17
United Airlines Logo
6:00 am - 8:44 pmOPO-AUS
20h 44m2 stops
United Airlines Logo
4:10 pm - 2:45 pmAUS-OPO
16h 35m1 stop
$824United Airlines
Find Deal
Wed, May 6 - Sun, May 10
British Airways Logo
8:00 pm - 3:25 pmFAO-AUS
25h 25m1 stop
British Airways Logo
5:55 pm - 10:20 amAUS-FAO
34h 25m1 stop
$830British Airways
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Wed, May 6 - Sun, May 10
British Airways Logo
8:00 pm - 8:35 pmFAO-AUS
30h 35m1 stop
British Airways Logo
5:55 pm - 10:20 amAUS-FAO
34h 25m1 stop
$831British Airways
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Wed, Dec 24 - Wed, Dec 31
Lufthansa Logo
11:55 am - 8:49 pmLIS-AUS
14h 54m1 stop
Lufthansa Logo
5:00 pm - 10:15 amAUS-LIS
11h 15m1 stop
$834Lufthansa
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Thu, Feb 5 - Mon, Feb 9
American Airlines Logo
8:20 am - 9:11 pmLIS-AUS
18h 51m2 stops
American Airlines Logo
6:55 pm - 2:55 pmAUS-LIS
14h 00m1 stop
$840American Airlines
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Thu, Feb 5 - Mon, Feb 9
American Airlines Logo
10:55 am - 10:22 pmLIS-AUS
17h 27m1 stop
American Airlines Logo
6:55 pm - 2:55 pmAUS-LIS
14h 00m1 stop
$841American Airlines
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Thu, Feb 5 - Mon, Feb 9
Delta Logo
5:00 am - 4:10 pmLIS-AUS
17h 10m1 stop
Delta Logo
11:45 am - 8:00 amAUS-LIS
14h 15m1 stop
$877Delta
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Fri, Dec 19 - Mon, Dec 29
Delta Logo
5:30 am - 12:28 amLIS-AUS
24h 58m2 stops
Delta Logo
6:27 pm - 8:00 amAUS-LIS
31h 33m2 stops
$1,080Delta
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Sat, Dec 20 - Sat, Dec 27
Lufthansa Logo
11:55 am - 12:59 amLIS-AUS
19h 04m1 stop
Lufthansa Logo
4:12 pm - 3:40 pmAUS-LIS
17h 28m2 stops
$1,191Lufthansa
Find Deal
Booking Insights

KAYAK's insights & trends for flights to Austin

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

What is the cheapest month to fly to Austin?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights to Austin, 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 to Austin is May, where tickets cost $727 on average for one-way flights. On the other hand, the most expensive months are August and June, where the average cost of tickets from Portugal is $1,148 and $1,148 respectively. For return trips, the best month to travel is May with an average price of $727.

Good to know

Low seasonOctober
Cheapest flight$374
Best time to beat the crowds with an average 11% drop in price.
Most popular time to fly with an average 11% increase in price.
Flight from Lisbon to Austin

FAQs - booking Austin flights

  • How far is Austin Bergstrom Airport from central Austin?

    Central Austin is 7 miles away from Austin Bergstrom Airport.

  • What is the name of Austin’s airport?

    Austin is served by Austin Bergstrom Airport, also commonly referred to as Austin Bergstrom or Bergstrom Intl. The airport code is AUS.

  • What is the cheapest day to fly to Austin?

    Based on KAYAK data, the cheapest day to fly to Austin is Monday where tickets can be as cheap as $794. On the other hand, the most expensive day to fly is Thursday, where prices are $1,055 on average.

  • How does KAYAK find such low prices on flights to Austin?

    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 to Austin.

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

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

  • What is the Hacker Fare option on flights to Austin?

    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 Austin 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 to Austin?

    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 Austin up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Austin?

    The cheapest time of day to fly to Austin is generally in the morning, when flights cost $919 on average. The most expensive time of day to fly to Austin is generally in the morning, which is peak travel time and where the average cost of a ticket is $919.

  • How many direct flights to Austin are there each week?

    Each week there are around 2,662 direct flights from within Portugal to Austin. The most common day for departures is Monday, with 16% of flights taking off on this day.

Top tips for finding cheap flights to Austin

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Austin flight deals.

Reviews of the top airline flying from Portugal to Austin

 
See real verified KAYAK customer reviews for airlines flying to Austin. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Portugal to Austin. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to Austin? 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.
7.7
KLMOverall score based on 1410 reviews
7.3Food
7.8Boarding
7.1Entertainment
7.7Comfort
8.4Crew
Airline reviews

At the airport, terrible, I do not want to even remember it. It was too humiliating for a business class passenger.

2.0 MediocreElizabeth, Oct 2025CDG - AMS
Read more KLM reviews

At the airport, terrible, I do not want to even remember it. It was too humiliating for a business class passenger.

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.

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.

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.

Short flight so it was okay. Nice crew, all very pleasant and professional. We were near the back in row 27 so just as we got our drinks, we started our descent so had to drink very quickly!

The baggage drop-off in Stuttgart is bad: after online check-in you cannot use the automated baggage drop off as indicated on the website. You can use the terminals but have to cue to 1 of three open and slowly working counters to drop the bags. took about 45 minutes wait time.

Klm start boarding while somw air issue in the plan

I appreciate that KLM was proactive in informing me of the 2 hour delay which enabled me to replan my travel. It was a bit stressful not knowing whether my connection from Montreal to Ottawa was happening. But the ground and air crew did a good job at comforting and assuring me.

Cabin crew professional, polite and friendly, boarding was seemless, but come on KLM surely you can do better than a pack of cheesy biscuits as an inflight snack

Traveling to a place near Austin?

Book flights to Austin if you plan to visit one of these locations
Fredericksburg
Georgetown
Cedar Park
Dripping Springs
Seguin
Bastrop
Canyon Lake
Horseshoe Bay
Buda
Flatonia

Everything you need to know for your flight to Austin

Information on the airport you'll fly into in Austin