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Portugal

$248+ Cheap flights from Austin (AUS) to Portugal

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 1/12. Fares are subject to change and may not be available on all flights or dates of travel.
AUS — LIS
Dec 23 — Dec 301
Tue 12/23
Tue 12/30
1 adult, Economy
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Cheap flight deals from Austin to Portugal

Keep the following information in mind while searching for Austin to Portugal flight deals. Data was last updated November 23, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$466
(Booking.com)

One-way from

$248
(Kiwi.com)

Popular in

May

Cheapest in

January

Average price

$800
Provider with most accurate pricing for Austin Bergstrom-Lisbon Humberto Delgado flight deals.
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Provider most trusted by Cheapflights users for Austin Bergstrom-Lisbon Humberto Delgado flights.
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From Austin Bergstrom to Portugal
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One-way flight from Austin Bergstrom to Portugal
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Highest demand for flights based on searches. 18% potential increase in price ($212 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($30 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Find flight deals from Austin to Portugal

Cheapest flights from Austin to Portugal
Explore the most affordable flight options available from Austin to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 23, 2025.

This Delta deal was found by Cheapflights users on 11/21. 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.
Wed 12/316:25 amAUS - OPO
2 stops22h 05mDelta
Tue 1/136:05 amOPO - AUS
2 stops21h 24mDelta
Deal found 11/21$492
This United Airlines deal was found by Cheapflights users on 11/21. 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 12/1012:14 pmAUS - LIS
1 stop16h 01mUnited Airlines
Thu 12/2510:55 amLIS - AUS
1 stop16h 32mUnited Airlines
Deal found 11/21$545
This KAYAK deal was found by Cheapflights users on 11/22. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/111:40 amAUS - LIS
1 stop14h 30mLufthansa
Mon 12/812:25 pmLIS - AUS
1 stop31h 50mLufthansa
Deal found 11/22$550
This United Airlines deal was found by Cheapflights users on 11/21. 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 12/1012:14 pmAUS - LIS
1 stop16h 01mUnited Airlines
Wed 12/2411:00 amLIS - AUS
1 stop31h 19mUnited Airlines
Deal found 11/21$551
This KAYAK deal was found by Cheapflights users on 11/22. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/210:15 amAUS - LIS
2 stops31h 15mLufthansa
Mon 12/83:55 pmLIS - AUS
1 stop28h 20mLufthansa
Deal found 11/22$556
This KAYAK deal was found by Cheapflights users on 11/22. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/32:37 pmAUS - LIS
1 stop11h 33mLufthansa
Mon 12/83:55 pmLIS - AUS
2 stops34h 48mLufthansa
Deal found 11/22$560
This United Airlines deal was found by Cheapflights users on 11/20. 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.
Sat 11/297:43 pmAUS - LIS
2 stops31h 37mUnited Airlines
Mon 12/85:00 amLIS - AUS
2 stops40h 45mUnited Airlines
Deal found 11/20$567
This Air Canada deal was found by Cheapflights users on 11/22. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2711:30 amAUS - LIS
1 stop15h 50mAir Canada
Thu 12/410:55 amLIS - AUS
2 stops34h 50mAir Canada
Deal found 11/22$577
This KLM deal was found by Cheapflights users on 11/20. 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.
Sat 11/296:05 pmAUS - FAO
1 stop17h 55mKLM
Sat 12/65:45 pmFAO - AUS
2 stops30h 09mKLM
Deal found 11/20$757
This KLM deal was found by Cheapflights users on 11/22. 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 12/306:27 pmAUS - OPO
2 stops14h 58mKLM
Sat 1/109:25 amOPO - AUS
2 stops20h 55mKLM
Deal found 11/22$952
This Ovago deal was found by Cheapflights users on 11/20. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/298:30 pmAUS - FAO
2 stops38h 30mBritish Airways
Sat 12/66:50 pmFAO - AUS
2 stops28h 47mBritish Airways
Deal found 11/20$1,004
This Cheapflightsfares deal was found by Cheapflights users on 11/21. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/304:10 pmAUS - OPO
1 stop13h 30mLufthansa
Sat 1/106:00 amOPO - AUS
2 stops20h 51mLufthansa
Deal found 11/21$1,057

Cheapflights Fare Finder

 
Customize your flight search to find flights from Austin to Portugal 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 November 23, 2025.
Use the filters below to find and compare flights from Austin to Portugal that are best for you.

Fly from

Austin

Fly to

Portugal

Route

Depart

Return

Price

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Wed 2/11

12:34 pm-10:30 am

2 stops15h 56m

Porto

Sat 2/21

5:00 am-4:10 pm

1 stop17h 10m

$482

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Thu 1/15

6:05 pm-3:25 pm

1 stop15h 20m

Porto

Thu 1/29

6:35 am-4:10 pm

1 stop15h 35m

$483

AustinLisbon

AUS - LIS

AUSLIS

Austin Bergstrom

Tue 2/10

7:20 am-8:00 am

1 stop18h 40m

Lisbon Humberto Delgado

Sun 2/22

11:25 am-4:10 pm

1 stop34h 45m

$486

AustinLisbon

AUS - LIS

AUSLIS

Austin Bergstrom

Tue 2/10

7:20 am-8:00 am

1 stop18h 40m

Lisbon Humberto Delgado

Mon 2/16

5:00 am-4:10 pm

1 stop17h 10m

$486

AustinLisbon

AUS - LIS

AUSLIS

Austin Bergstrom

Thu 1/1

8:05 am-8:00 am

1 stop17h 55m

Lisbon Humberto Delgado

Thu 1/15

5:00 am-4:10 pm

1 stop17h 10m

$486

AustinLisbon

AUS - LIS

AUSLIS

Austin Bergstrom

Thu 1/29

7:20 am-8:00 am

1 stop18h 40m

Lisbon Humberto Delgado

Wed 2/4

3:30 pm-4:10 pm

1 stop30h 40m

$486

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Thu 1/15

6:05 pm-10:30 am

1 stop34h 25m

Porto

Thu 1/29

5:00 am-7:45 pm

2 stops20h 45m

$488

AustinLisbon

AUS - LIS

AUSLIS

Austin Bergstrom

Mon 1/5

6:22 pm-9:20 am

2 stops32h 58m

Lisbon Humberto Delgado

Fri 1/16

11:20 am-9:30 pm

2 stops40h 10m

$489

AustinLisbon

AUS - LIS

AUSLIS

Austin Bergstrom

Tue 3/3

5:00 pm-10:15 am

1 stop11h 15m

Lisbon Humberto Delgado

Wed 3/11

11:20 am-1:14 pm

2 stops30h 54m

$489

AustinLisbon

AUS - LIS

AUSLIS

Austin Bergstrom

Thu 2/26

12:19 pm-10:15 am

1 stop15h 56m

Lisbon Humberto Delgado

Wed 3/11

11:20 am-11:07 am

2 stops28h 47m

$489

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/21

Showing 1-10 of 49 results
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Best time to book a flight from Austin to Portugal

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

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

Currently, March is the cheapest month in which you can book a flight from Austin to Portugal (average of $492). Flying from Austin to Portugal in July is currently the most expensive (average of $787). 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.

What is the cheapest time of day to fly from AUS to PT?

Find hourly flight availability from Austin to Portugal. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 23, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 13% on flights from Austin to Portugal by exploring options for tickets in the evening.

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

Use this chart to determine the cheapest time to fly round-trip from Austin to Portugal. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Austin to Portugal flight should consider departing on Monday at noon when fares are most often at their lowest. Friday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Portugal

Get insights into the airlines that provide service to Portugal. 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 Portugal. Reviews last updated November 23, 2025.
Peruse reviews from past customers who have flown with Delta, KLM, and United Airlines from Austin to Portugal to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
7,999 reviews

Entertainment

7.9

Comfort

7.9

Boarding

8.1

Overall

7.9

Crew

8.5

Food

7.3

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
7,999 reviews
Delta
7.9
Good
7,999 reviews

Entertainment

7.9

Comfort

7.9

Boarding

8.1

Overall

7.9

Crew

8.5

Food

7.3

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
KLM
7.7
Good
1,418 reviews
Delta
7.9
Good
7,999 reviews

Entertainment

7.9

Comfort

7.9

Boarding

8.1

Overall

7.9

Crew

8.5

Food

7.3

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,034 reviews
Delta
7.9
Good
7,999 reviews

Entertainment

7.9

Comfort

7.9

Boarding

8.1

Overall

7.9

Crew

8.5

Food

7.3

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.2
Good
11,046 reviews
Delta
7.9
Good
7,999 reviews

Entertainment

7.9

Comfort

7.9

Boarding

8.1

Overall

7.9

Crew

8.5

Food

7.3

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
British Airways
6.7
Okay
7,535 reviews
Delta
7.9
Good
7,999 reviews

Entertainment

7.9

Comfort

7.9

Boarding

8.1

Overall

7.9

Crew

8.5

Food

7.3

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Austin to Portugal. 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 from for flights from Austin to Portugal?

    Austin Bergstrom (AUS), located 7.5 mi from the city center, is the airport you fly out of when you book flights from Austin to Portugal.

  • How long is the flight from Austin to Portugal?

    Departing from Austin to Portugal will take you 15h 20m. Austin and Portugal are separated by a distance of 4829 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    $370 is the cheapest one-way deal found within the past few days, from British Airways. You may also be able to find cheap deals on Lufthansa and United Airlines, with prices starting from $412 and $420, respectively.

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

    When deciding which route to take from Austin to Portugal consider Austin Bergstrom - Lisbon Humberto Delgado, Austin Bergstrom - Porto or Austin Bergstrom - Faro as they are the most popular.

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

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

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

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

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

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

    Currently, March is the cheapest month in which you can book a flight from Austin to Portugal (average of $492). Flying from Austin to Portugal in July is currently the most expensive (average of $787). 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.

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Top 10 airlines flying from Austin to Portugal

Discover the top 10 airlines that operate flights from Austin to Portugal. 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 November 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
IberiaCheapest$499Average$988FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$524Average$954FlexibilityNo cancel feeOn-time71%
KLMCheapest$531Average$977FlexibilityNo cancel feeOn-time75%
DeltaCheapest$565Average$1,057FlexibilityNo cancel feeOn-timeN/A
Air FranceCheapest$581Average$1,199FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$604Average$1,133FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$633Average$893FlexibilityNo cancel feeOn-time70%
Air CanadaCheapest$759Average$1,031FlexibilityNo cancel feeOn-time67%
LufthansaCheapest$941Average$1,385FlexibilityNo cancel feeOn-time76%
Virgin AtlanticCheapest$968Average$1,267FlexibilityNo cancel feeOn-time72%

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