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$402+ 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 4/8. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — AUS
Mar 11 — Mar 181
Wed 3/11
Wed 3/18
1 adult, Economy
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Cheap 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 February 9, 2026.

This Kiwi.com deal was found by Cheapflights users on 2/6. 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.
Tue 4/215:45 pm
LIS
-
AUS
1 stop24h 51m
Multiple Airlines
Sat 5/21:41 pm
AUS
-
LIS
1 stop15h 19m
Multiple Airlines
Deal found 2/6$669
This Kiwi.com deal was found by Cheapflights users on 2/6. 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.
Sun 4/195:45 pm
LIS
-
AUS
1 stop24h 51m
Multiple Airlines
Sat 5/21:41 pm
AUS
-
LIS
1 stop15h 19m
Multiple Airlines
Deal found 2/6$686
This Kiwi.com deal was found by Cheapflights users on 2/6. 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.
Thu 2/269:00 am
OPO
-
AUS
2 stops20h 21m
Multiple Airlines
Mon 3/26:10 am
AUS
-
OPO
1 stop23h 40m
Multiple Airlines
Deal found 2/6$775
This Kiwi.com deal was found by Cheapflights users on 2/6. 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.
Sat 3/712:15 pm
LIS
-
AUS
1 stop17h 09m
Multiple Airlines
Sun 3/228:36 pm
AUS
-
LIS
2 stops27h 49m
Multiple Airlines
Deal found 2/6$807
This KLM deal was found by Cheapflights users on 2/6. 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.
Thu 2/265:00 am
OPO
-
AUS
1 stop17h 10m
KLM
Mon 3/26:05 pm
AUS
-
OPO
1 stop34h 25m
KLM
Deal found 2/6$830
This Delta deal was found by Cheapflights users on 2/6. 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 2/265:00 am
OPO
-
AUS
2 stops22h 24m
Delta
Mon 3/23:30 pm
AUS
-
OPO
2 stops17h 55m
Delta
Deal found 2/6$835
This Delta deal was found by Cheapflights users on 2/6. 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.
Sat 3/75:00 am
LIS
-
AUS
1 stop17h 10m
Delta
Sun 3/227:15 am
AUS
-
LIS
1 stop20h 40m
Delta
Deal found 2/6$836
This KLM deal was found by Cheapflights users on 2/6. 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.
Tue 4/215:00 am
LIS
-
AUS
2 stops18h 23m
KLM
Sat 5/26:05 pm
AUS
-
LIS
1 stop34h 50m
KLM
Deal found 2/6$841
This United Airlines deal was found by Cheapflights users on 2/5. 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.
Wed 2/256:00 am
OPO
-
AUS
2 stops22h 45m
United Airlines
Sun 3/14:10 pm
AUS
-
OPO
1 stop11h 20m
United Airlines
Deal found 2/5$859
This United Airlines deal was found by Cheapflights users on 2/6. 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 4/215:05 am
LIS
-
AUS
2 stops22h 29m
United Airlines
Sat 5/212:15 pm
AUS
-
LIS
2 stops14h 05m
United Airlines
Deal found 2/6$867
This Rumbo deal was found by Cheapflights users on 2/7. 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 Rumbo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/2412:30 pm
LIS
-
AUS
2 stops17h 14m
Iberia
Sat 10/3112:20 pm
AUS
-
LIS
2 stops18h 30m
Iberia
Deal found 2/7$874
This Delta deal was found by Cheapflights users on 2/8. 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 3/265:00 am
LIS
-
AUS
1 stop17h 10m
Delta
Thu 4/26:05 pm
AUS
-
LIS
1 stop18h 40m
Delta
Deal found 2/8$875

Find flight deals from Portugal to Austin

Keep the following information in mind while searching for Portugal to Austin flight deals. Data was last updated February 9, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$669
(Kiwi.com)

One-way from

$402
(Kiwi.com)

Popular in

January

Cheapest in

February

Average price

$748
Provider with most accurate pricing for Lisbon Humberto Delgado-Austin Bergstrom flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lisbon Humberto Delgado-Austin Bergstrom flights.
Search Deals
From Portugal to Austin Bergstrom
Search Deals
One-way flight from Portugal to Austin Bergstrom
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($45 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($28 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

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 February 9, 2026.
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

LisbonAustin

LIS - AUS

LISAUS

Lisbon Humberto Delgado

Sun 4/19

5:45 pm-12:36 pm

1 stop24h 51m

Austin Bergstrom

Sat 5/2

1:41 pm-11:00 am

1 stop15h 19m

$686

PortoAustin

OPO - AUS

OPOAUS

Porto

Thu 2/26

9:00 am-11:21 pm

2 stops20h 21m

Austin Bergstrom

Mon 3/2

6:10 am-11:50 am

1 stop23h 40m

$775

LisbonAustin

LIS - AUS

LISAUS

Lisbon Humberto Delgado

Sat 3/7

12:15 pm-11:24 pm

1 stop17h 09m

Austin Bergstrom

Sun 3/22

8:36 pm-5:25 am

2 stops27h 49m

$807

PortoAustin

OPO - AUS

OPOAUS

Porto

Thu 2/26

5:00 am-4:10 pm

1 stop17h 10m

Austin Bergstrom

Mon 3/2

6:05 pm-10:25 pm

1 stop22h 20m

$830

LisbonAustin

LIS - AUS

LISAUS

Lisbon Humberto Delgado

Sat 3/7

5:00 am-4:10 pm

1 stop17h 10m

Austin Bergstrom

Sun 3/22

7:15 am-8:55 am

1 stop20h 40m

$836

LisbonAustin

LIS - AUS

LISAUS

Lisbon Humberto Delgado

Tue 4/21

5:00 am-5:23 pm

2 stops18h 23m

Austin Bergstrom

Sat 5/2

6:05 pm-10:55 am

1 stop34h 50m

$841

PortoAustin

OPO - AUS

OPOAUS

Porto

Thu 2/26

6:00 am-8:56 pm

2 stops20h 56m

Austin Bergstrom

Mon 3/2

7:20 pm-9:30 am

1 stop32h 10m

$859

PortoAustin

OPO - AUS

OPOAUS

Porto

Wed 2/25

6:00 am-10:45 pm

2 stops22h 45m

Austin Bergstrom

Sun 3/1

4:10 pm-9:30 am

1 stop11h 20m

$859

LisbonAustin

LIS - AUS

LISAUS

Lisbon Humberto Delgado

Tue 4/21

5:05 am-9:34 pm

2 stops22h 29m

Austin Bergstrom

Sat 5/2

12:15 pm-8:20 am

2 stops14h 05m

$867

LisbonAustin

LIS - AUS

LISAUS

Lisbon Humberto Delgado

Thu 3/26

5:00 am-5:10 pm

1 stop17h 10m

Austin Bergstrom

Thu 4/2

6:05 pm-6:45 pm

1 stop18h 40m

$875

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/6

Showing 1-10 of 38 results
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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, April is the cheapest month in which you can book a flight from Portugal to Austin (average of $692). Flying from Portugal to Austin in July is currently the most expensive (average of $1,026). 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 February 9, 2026.
See what other customers who have flown with British Airways 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.
British Airways
6.7
Okay
7,721 reviews

Entertainment

6.4

Comfort

6.8

Boarding

6.9

Crew

7.6

Overall

6.7

Food

6.4

Reviews

1 / 20
6.0
Good

Roxanne,Sep 2025

LHR - IAD

Food was mediocre. Couldn't use headphones because no information on how to use. Staff paid so much attention on a family with a baby . They got VIP treatment.
British Airways
6.7
Okay
7,721 reviews
British Airways
6.7
Okay
7,721 reviews

Entertainment

6.4

Comfort

6.8

Boarding

6.9

Crew

7.6

Overall

6.7

Food

6.4

Reviews

1 / 20
6.0
Good

Roxanne,Sep 2025

LHR - IAD

Food was mediocre. Couldn't use headphones because no information on how to use. Staff paid so much attention on a family with a baby . They got VIP treatment.

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 17h 10m. The distance from Portugal to Austin is about 4829 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Portugal to Austin one-way?

    One-way options have recently been found by users for as low as $540 on British Airways. Other airlines that offer cheap prices include Aer Lingus from $541 and Iberia from $543 one-way.

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

    The most popular flight routes from Portugal to Austin are Lisbon Humberto Delgado - Austin Bergstrom, Porto - Austin Bergstrom and Faro - Austin Bergstrom.

  • 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, April is the cheapest month in which you can book a flight from Portugal to Austin (average of $692). Flying from Portugal to Austin in July is currently the most expensive (average of $1,026). 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
Cedar Park
San Marcos
Fredericksburg
Round Rock
Georgetown
Bastrop
Pflugerville
Dripping Springs
Canyon Lake
Seguin
Horseshoe Bay

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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 February 9, 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$729Average$803FlexibilityNo cancel feeOn-time70%

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