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Portugal

$270+ 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 2/23. Fares are subject to change and may not be available on all flights or dates of travel.
AUS — LIS
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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Cheap 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 December 12, 2025.

This Finnair deal was found by Cheapflights users on 12/9. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/162:55 pmAUS - LIS
1 stop12h 10mMultiple Airlines
Tue 12/2311:05 amLIS - AUS
1 stop16h 52mMultiple Airlines
Deal found 12/9$784
This American Airlines deal was found by Cheapflights users on 12/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/116:08 amAUS - LIS
1 stop20h 57mAmerican Airlines
Wed 12/2410:40 amLIS - AUS
1 stop36h 10mAmerican Airlines
Deal found 12/10$810
This Finnair deal was found by Cheapflights users on 12/10. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/112:29 pmAUS - LIS
2 stops18h 56mMultiple Airlines
Wed 12/2411:05 amLIS - AUS
2 stops30h 13mMultiple Airlines
Deal found 12/10$823
This Expedia deal was found by Cheapflights users on 12/11. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/161:10 pmAUS - LIS
2 stops39h 05mLufthansa
Mon 12/2211:55 amLIS - AUS
1 stop14h 54mLufthansa
Deal found 12/11$854
This Trip.com deal was found by Cheapflights users on 12/10. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/114:10 pmAUS - LIS
1 stop34h 05mLufthansa
Wed 12/2410:15 amLIS - AUS
1 stop19h 38mLufthansa
Deal found 12/10$870
This United Airlines deal was found by Cheapflights users on 12/11. 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 12/169:45 amAUS - LIS
2 stops18h 30mUnited Airlines
Mon 12/2211:55 amLIS - AUS
2 stops16h 52mUnited Airlines
Deal found 12/11$908
This oojo deal was found by Cheapflights users on 12/11. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/134:20 pmAUS - LIS
2 stops16h 30mBritish Airways
Sat 12/276:40 pmLIS - AUS
1 stop28h 10mBritish Airways
Deal found 12/11$955
This Finnair deal was found by Cheapflights users on 12/11. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/136:08 amAUS - LIS
1 stop20h 57mMultiple Airlines
Sat 12/2710:40 amLIS - AUS
1 stop17h 17mMultiple Airlines
Deal found 12/11$1,064
This CheapOair deal was found by Cheapflights users on 12/11. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/1310:15 amAUS - LIS
2 stops22h 45mLufthansa
Sat 12/277:00 pmLIS - AUS
2 stops25h 15mLufthansa
Deal found 12/11$1,068
This Ovago deal was found by Cheapflights users on 12/9. 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.
Tue 12/304:10 pmAUS - OPO
1 stop13h 30mLufthansa
Sat 1/101:45 pmOPO - AUS
2 stops30h 30mLufthansa
Deal found 12/9$1,121
This KLM deal was found by Cheapflights users on 12/11. 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 12/305:22 pmAUS - OPO
2 stops16h 03mKLM
Sat 1/105:00 amOPO - AUS
2 stops21h 54mKLM
Deal found 12/11$1,213
This Delta deal was found by Cheapflights users on 12/10. 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.
Tue 12/306:25 amAUS - OPO
2 stops22h 05mDelta
Sat 1/105:00 amOPO - AUS
2 stops23h 14mDelta
Deal found 12/10$1,327

Find flight deals from Austin to Portugal

Keep the following information in mind while searching for Austin to Portugal flight deals. Data was last updated December 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$427
(Kiwi.com)

One-way from

$270
(Kiwi.com)

Popular in

May

Cheapest in

February

Average price

$880
Provider with most accurate pricing for Austin Bergstrom-Lisbon Humberto Delgado flight deals.
Search Deals
Provider most trusted by Cheapflights users for Austin Bergstrom-Lisbon Humberto Delgado flights.
Search Deals
From Austin Bergstrom to Portugal
Search Deals
One-way flight from Austin Bergstrom to Portugal
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($201 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($29 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 December 12, 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

AustinLisbon

AUS - LIS

AUSLIS

Austin Bergstrom

Thu 1/29

11:20 am-8:10 am

1 stop14h 50m

Lisbon Humberto Delgado

Thu 2/5

10:15 am-8:25 pm

1 stop16h 10m

$455

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Fri 1/23

11:45 am-10:30 am

2 stops16h 45m

Porto

Fri 1/30

4:10 pm-4:10 pm

1 stop30h 00m

$482

AustinLisbon

AUS - LIS

AUSLIS

Austin Bergstrom

Thu 2/26

7:20 am-8:55 am

1 stop19h 35m

Lisbon Humberto Delgado

Sat 3/7

5:00 am-4:10 pm

1 stop17h 10m

$486

AustinLisbon

AUS - LIS

AUSLIS

Austin Bergstrom

Thu 1/29

9:50 am-8:10 am

2 stops16h 20m

Lisbon Humberto Delgado

Thu 2/5

11:20 am-8:49 pm

2 stops39h 29m

$486

AustinLisbon

AUS - LIS

AUSLIS

Austin Bergstrom

Thu 1/22

9:50 am-8:10 am

2 stops16h 20m

Lisbon Humberto Delgado

Thu 1/29

11:20 am-8:49 pm

2 stops39h 29m

$486

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Sun 1/25

6:25 pm-3:25 pm

2 stops15h 00m

Porto

Sun 2/1

4:10 pm-4:10 pm

1 stop30h 00m

$488

AustinFaro

AUS - FAO

AUSFAO

Austin Bergstrom

Sat 1/24

7:20 am-10:10 am

2 stops20h 50m

Faro

Sat 1/31

5:45 pm-9:27 pm

2 stops33h 42m

$488

AustinLisbon

AUS - LIS

AUSLIS

Austin Bergstrom

Wed 1/28

9:50 am-8:10 am

2 stops16h 20m

Lisbon Humberto Delgado

Sun 2/1

10:50 am-10:47 pm

2 stops41h 57m

$489

AustinLisbon

AUS - LIS

AUSLIS

Austin Bergstrom

Thu 1/29

9:50 am-8:10 am

2 stops16h 20m

Lisbon Humberto Delgado

Wed 2/4

11:20 am-2:13 pm

2 stops32h 53m

$489

AustinLisbon

AUS - LIS

AUSLIS

Austin Bergstrom

Sun 2/15

10:28 am-11:20 am

2 stops18h 52m

Lisbon Humberto Delgado

Sat 2/28

5:00 am-4:10 pm

1 stop17h 10m

$490

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

Showing 1-10 of 43 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, January is the cheapest month in which you can book a flight from Austin to Portugal (average of $511). Flying from Austin to Portugal in June 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 December 12, 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 Sunday evenings 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 December 12, 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
8,009 reviews

Entertainment

7.9

Overall

7.9

Comfort

7.9

Boarding

8.1

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
8,009 reviews
Delta
7.9
Good
8,009 reviews

Entertainment

7.9

Overall

7.9

Comfort

7.9

Boarding

8.1

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
1,432 reviews
Delta
7.9
Good
8,009 reviews

Entertainment

7.9

Overall

7.9

Comfort

7.9

Boarding

8.1

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
9,095 reviews
Delta
7.9
Good
8,009 reviews

Entertainment

7.9

Overall

7.9

Comfort

7.9

Boarding

8.1

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
11,048 reviews
Delta
7.9
Good
8,009 reviews

Entertainment

7.9

Overall

7.9

Comfort

7.9

Boarding

8.1

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
7,571 reviews
Delta
7.9
Good
8,009 reviews

Entertainment

7.9

Overall

7.9

Comfort

7.9

Boarding

8.1

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 14h 50m. Austin and Portugal are separated by a distance of 4874 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?

    $245 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 Delta and United Airlines, with prices starting from $380 and $396, 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, January is the cheapest month in which you can book a flight from Austin to Portugal (average of $511). Flying from Austin to Portugal in June 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.

See more FAQs

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Top 9 airlines flying from Austin to Portugal

Discover the top 9 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 December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$531Average$968FlexibilityNo cancel feeOn-time75%
DeltaCheapest$541Average$1,084FlexibilityNo cancel feeOn-timeN/A
Air FranceCheapest$603Average$1,199FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$605Average$1,056FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$616Average$1,049FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$633Average$975FlexibilityNo cancel feeOn-time70%
Air CanadaCheapest$759Average$995FlexibilityNo cancel feeOn-time67%
IberiaCheapest$765Average$1,022FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$936Average$1,363FlexibilityNo cancel feeOn-time76%

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