Austin

$360+ Cheap flights from Portugal to Austin (AUS)

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 9/11. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — AUS
Aug 24 — Aug 311
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Portugal to Austin with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Portugal to Austin

Keep the following information in mind while searching for Portugal to Austin flight deals. Data was last updated August 19, 2025.

Round-trip from

$762
(Mytrip)

One-way from

$360
(Kiwi.com)

Popular in

August

Cheapest in

April

Average price

$1,157
From Portugal to Austin Bergstrom
One-way flight from Portugal to Austin Bergstrom
Highest demand for flights based on searches. 8% potential increase in price ($87 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($22 potential savings vs. average RT price).
Average for round-trip flights in August 2025

Find flight deals from Portugal to Austin

Cheapest flights from Portugal to Austin
Explore the most affordable flight options available from Portugal to Austin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 19, 2025.

This Mytrip deal was found by Cheapflights users on 8/18. 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.
Thu 9/46:40 amOPO - AUS
3 stops35h 40mMultiple Airlines
Mon 9/812:05 pmAUS - OPO
2 stops22h 40mMultiple Airlines
Deal found 8/18$762
This United Airlines deal was found by Cheapflights users on 8/18. 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.
Thu 9/46:00 amOPO - AUS
2 stops20h 25mUnited Airlines
Mon 9/88:25 amAUS - OPO
1 stop16h 30mUnited Airlines
Deal found 8/18$794
This Kiwi.com deal was found by Cheapflights users on 8/18. 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.
Fri 10/108:50 amLIS - AUS
2 stops31h 07mMultiple Airlines
Wed 10/221:09 pmAUS - LIS
1 stop15h 41mMultiple Airlines
Deal found 8/18$794
This United Airlines deal was found by Cheapflights users on 8/18. 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.
Fri 9/265:05 amLIS - AUS
1 stop15h 15mUnited Airlines
Sat 10/117:10 amAUS - LIS
1 stop21h 25mUnited Airlines
Deal found 8/18$797
This Lufthansa deal was found by Cheapflights users on 8/18. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/412:10 pmOPO - AUS
1 stop32h 10mLufthansa
Mon 9/811:10 amAUS - OPO
1 stop13h 45mLufthansa
Deal found 8/18$808
This United Airlines deal was found by Cheapflights users on 8/17. 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.
Tue 9/1612:50 pmOPO - AUS
1 stop13h 05mUnited Airlines
Tue 9/239:00 amAUS - OPO
2 stops16h 45mUnited Airlines
Deal found 8/17$811
This Lufthansa deal was found by Cheapflights users on 8/18. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/412:10 pmOPO - AUS
1 stop32h 10mLufthansa
Thu 10/24:05 pmAUS - OPO
1 stop24h 40mLufthansa
Deal found 8/18$815
This United Airlines deal was found by Cheapflights users on 8/18. 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.
Thu 9/46:00 amOPO - AUS
2 stops20h 25mUnited Airlines
Thu 10/29:44 amAUS - OPO
2 stops24h 01mUnited Airlines
Deal found 8/18$819
This United Airlines deal was found by Cheapflights users on 8/18. 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.
Fri 9/2612:20 pmLIS - AUS
2 stops28h 44mUnited Airlines
Sun 10/1212:05 pmAUS - LIS
2 stops14h 15mUnited Airlines
Deal found 8/18$829
This Delta deal was found by Cheapflights users on 8/19. 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.
Thu 9/185:00 amLIS - AUS
1 stop17h 00mDelta
Wed 10/17:25 amAUS - LIS
2 stops19h 25mDelta
Deal found 8/19$835
This Delta deal was found by Cheapflights users on 8/18. 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.
Fri 9/265:00 amLIS - AUS
2 stops23h 09mDelta
Sat 10/116:40 pmAUS - LIS
2 stops17h 15mDelta
Deal found 8/18$843
This KLM deal was found by Cheapflights users on 8/18. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/107:30 pmLIS - AUS
1 stop26h 30mKLM
Wed 10/2211:29 amAUS - LIS
1 stop14h 31mKLM
Deal found 8/18$846

Cheapflights Fare Finder

 
Customize your flight search to find flights from Portugal to Austin 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 August 19, 2025.
Use the filters below to find and compare flights from Portugal to Austin that are best for you.

Fly from

Portugal

Fly to

Austin

Route

Depart

Return

Price

PortoAustin

OPO - AUS

OPOAUS

Porto

Thu 9/4

6:40 am-12:20 pm

3 stops35h 40m

Austin Bergstrom

Mon 9/8

12:05 pm-4:45 pm

2 stops22h 40m

$762

PortoAustin

OPO - AUS

OPOAUS

Porto

Thu 9/4

6:00 am-8:50 pm

2 stops20h 50m

Austin Bergstrom

Mon 9/8

10:00 am-6:55 am

2 stops14h 55m

$794

LisbonAustin

LIS - AUS

LISAUS

Lisbon Humberto Delgado

Fri 10/10

8:50 am-9:57 am

2 stops31h 07m

Austin Bergstrom

Wed 10/22

1:09 pm-10:50 am

1 stop15h 41m

$794

LisbonAustin

LIS - AUS

LISAUS

Lisbon Humberto Delgado

Fri 9/26

5:05 am-2:20 pm

1 stop15h 15m

Austin Bergstrom

Sun 10/12

1:30 pm-8:20 am

1 stop12h 50m

$797

LisbonAustin

LIS - AUS

LISAUS

Lisbon Humberto Delgado

Fri 9/26

5:05 am-2:20 pm

1 stop15h 15m

Austin Bergstrom

Sat 10/11

7:10 am-10:35 am

1 stop21h 25m

$797

LisbonAustin

LIS - AUS

LISAUS

Lisbon Humberto Delgado

Thu 2/12

5:00 am-9:45 pm

2 stops22h 45m

Austin Bergstrom

Mon 2/16

11:50 am-8:10 am

1 stop14h 20m

$801

PortoAustin

OPO - AUS

OPOAUS

Porto

Thu 9/4

12:10 pm-2:20 pm

1 stop32h 10m

Austin Bergstrom

Mon 9/8

11:10 am-6:55 am

1 stop13h 45m

$808

PortoAustin

OPO - AUS

OPOAUS

Porto

Tue 9/16

12:50 pm-7:55 pm

1 stop13h 05m

Austin Bergstrom

Tue 9/23

11:40 am-7:45 am

1 stop14h 05m

$811

LisbonAustin

LIS - AUS

LISAUS

Lisbon Humberto Delgado

Thu 2/12

10:55 am-4:20 pm

2 stops35h 25m

Austin Bergstrom

Mon 2/16

5:10 pm-2:55 pm

2 stops15h 45m

$814

PortoAustin

OPO - AUS

OPOAUS

Porto

Thu 9/4

12:10 pm-2:20 pm

1 stop32h 10m

Austin Bergstrom

Thu 10/2

4:05 pm-10:45 pm

1 stop24h 40m

$815

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/18

Showing 1-10 of 24 results
1
2
3

Best time to book a flight from Portugal to Austin

Have a flexible travel schedule? Discover the best time to fly to Austin from Portugal 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 Portugal to Austin

What is the cheapest month to book a flight from Portugal to Austin?

Currently, January is the cheapest month in which you can book a flight from Portugal to Austin (average of $286). Flying from Portugal to Austin in March is currently the most expensive (average of $362). 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.

Reviews of airlines servicing Austin

Get insights into the airlines that provide service to Austin. 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 Austin. Reviews last updated August 19, 2025.
See what other customers who have flown with KLM from Portugal to Austin have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Entertainment

7.1

Boarding

7.8

Overall

7.8

Crew

8.4

Comfort

7.7

Food

7.3

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Entertainment

7.1

Boarding

7.8

Overall

7.8

Crew

8.4

Comfort

7.7

Food

7.3

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Related info for your journey

Find useful and relevant information for your journey from Portugal to Austin. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly into for flights to Austin from Portugal?

    Most people fly into Austin Bergstrom (AUS) if they book a flight to Austin from Portugal. Austin Bergstrom is conveniently located just 7.5 mi from Austin’s city center.

  • How long is the flight from Portugal to Austin?

    Departing from Portugal to Austin will take you 15h 15m. The distance from Portugal to Austin is about 4874 mi. This flight may include one or multiple stops.

  • What are the most popular routes from Portugal to Austin?

  • Can I find deals for flights from Portugal to Austin that include hotel bookings?

    Yes. In addition to deals on Portugal to Austin flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Portugal to Austin?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portugal to Austin.

  • Can I find deals for business class flights from Portugal to Austin?

    Yes. Cheapflights offers flight deals from Portugal to Austin 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 Portugal to Austin?

    Currently, January is the cheapest month in which you can book a flight from Portugal to Austin (average of $286). Flying from Portugal to Austin in March is currently the most expensive (average of $362). 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

Traveling to a place near Austin?

Book flights to Austin if you plan to visit one of these locations
San Marcos
Georgetown
Fredericksburg
Pflugerville
Dripping Springs
Cedar Park
Canyon Lake
Round Rock
Seguin
Horseshoe Bay

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Portugal to Austin

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from Portugal to Austin

Discover the top airline that operate flights from Portugal to Austin. 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 August 19, 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$809Average$1,055FlexibilityNo cancel feeOn-time75%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.