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Portugal

$276+ 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 11/12. Fares are subject to change and may not be available on all flights or dates of travel.
AUS — LIS
Nov 12 — Nov 191
Wed 11/12
Wed 11/19
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 October 13, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$514
(Justfly.com)

One-way from

$276
(Kiwi.com)

Popular in

May

Cheapest in

January

Average price

$834
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 ($216 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 October 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 October 13, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/13. 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.
Wed 11/1211:40 amAUS - OPO
2 stops18h 00mLufthansa
Wed 11/194:15 pmOPO - AUS
1 stop28h 00mLufthansa
Deal found 10/13$501
This Justfly.com deal was found by Cheapflights users on 10/11. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/610:15 amAUS - LIS
2 stops16h 40mAir Canada
Mon 12/1511:20 amLIS - AUS
2 stops34h 25mAir Canada
Deal found 10/11$514
This Justfly.com deal was found by Cheapflights users on 10/11. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/811:30 amAUS - LIS
2 stops15h 50mAir Canada
Mon 12/1511:20 amLIS - AUS
2 stops32h 51mAir Canada
Deal found 10/11$516
This Justfly.com deal was found by Cheapflights users on 10/11. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/77:00 amAUS - LIS
2 stops20h 20mAir Canada
Mon 12/1511:20 amLIS - AUS
2 stops32h 51mAir Canada
Deal found 10/11$521
This United Airlines deal was found by Cheapflights users on 10/11. 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.
Mon 11/1012:15 pmAUS - OPO
2 stops15h 15mUnited Airlines
Mon 11/246:00 amOPO - AUS
2 stops20h 41mUnited Airlines
Deal found 10/11$524
This Billigflug deal was found by Cheapflights users on 10/12. 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 Billigflug is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2610:00 amAUS - FAO
2 stops19h 40mMultiple Airlines
Wed 12/32:40 pmFAO - AUS
2 stops29h 35mMultiple Airlines
Deal found 10/12$527
This Delta deal was found by Cheapflights users on 10/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/286:40 amAUS - LIS
2 stops19h 20mDelta
Thu 12/45:00 amLIS - AUS
1 stop17h 10mDelta
Deal found 10/11$529
This KLM deal was found by Cheapflights users on 10/12. 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.
Wed 11/265:00 pmAUS - FAO
2 stops19h 15mKLM
Wed 12/36:55 pmFAO - AUS
1 stop27h 15mKLM
Deal found 10/12$530
This Air France deal was found by Cheapflights users on 10/11. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/121:41 pmAUS - OPO
2 stops14h 49mMultiple Airlines
Wed 11/1911:15 amOPO - AUS
1 stop34h 55mMultiple Airlines
Deal found 10/11$531
This Delta deal was found by Cheapflights users on 10/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/101:51 pmAUS - LIS
1 stop12h 09mDelta
Mon 11/245:00 amLIS - AUS
1 stop17h 10mDelta
Deal found 10/11$531
This KLM deal was found by Cheapflights users on 10/13. 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 11/276:05 pmAUS - OPO
1 stop15h 20mKLM
Thu 12/46:35 amOPO - AUS
1 stop15h 35mKLM
Deal found 10/13$532
This Rumbo deal was found by Cheapflights users on 10/11. 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 Rumbo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/107:20 amAUS - LIS
2 stops18h 40mMultiple Airlines
Mon 11/245:00 amLIS - AUS
1 stop17h 10mMultiple Airlines
Deal found 10/11$532

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 October 13, 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

Mon 11/10

12:15 pm-9:30 am

2 stops15h 15m

Porto

Mon 11/24

6:00 am-8:41 pm

2 stops20h 41m

$524

AustinFaro

AUS - FAO

AUSFAO

Austin Bergstrom

Wed 11/26

5:00 pm-6:15 pm

2 stops19h 15m

Faro

Wed 12/3

6:55 pm-4:10 pm

1 stop27h 15m

$530

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Wed 11/12

1:41 pm-10:30 am

2 stops14h 49m

Porto

Wed 11/19

4:10 pm-4:10 pm

1 stop30h 00m

$531

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Thu 11/27

7:25 am-10:25 am

2 stops21h 00m

Porto

Thu 12/4

6:35 am-4:10 pm

1 stop15h 35m

$531

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Mon 11/10

6:05 pm-3:25 pm

1 stop15h 20m

Porto

Mon 11/24

6:30 am-4:10 pm

1 stop15h 40m

$532

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Sat 11/29

6:05 pm-3:25 pm

1 stop15h 20m

Porto

Sat 12/6

6:00 am-4:10 pm

1 stop16h 10m

$532

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Thu 11/27

6:05 pm-3:25 pm

1 stop15h 20m

Porto

Thu 12/4

6:35 am-4:10 pm

1 stop15h 35m

$532

AustinLisbon

AUS - LIS

AUSLIS

Austin Bergstrom

Thu 11/27

11:30 am-9:20 am

1 stop15h 50m

Lisbon Humberto Delgado

Fri 12/5

5:00 am-12:19 pm

2 stops37h 19m

$533

AustinLisbon

AUS - LIS

AUSLIS

Austin Bergstrom

Thu 11/13

8:00 am-8:00 am

2 stops18h 00m

Lisbon Humberto Delgado

Thu 11/27

5:00 am-4:10 pm

1 stop17h 10m

$533

AustinLisbon

AUS - LIS

AUSLIS

Austin Bergstrom

Mon 11/10

7:25 am-8:00 am

1 stop18h 35m

Lisbon Humberto Delgado

Mon 11/24

5:00 am-4:10 pm

1 stop17h 10m

$535

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/11

Showing 1-10 of 40 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 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 October 13, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 16% 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 October 13, 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 October 13, 2025.
Peruse reviews from past customers who have flown with Delta, United Airlines, and American 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
8.0
Very good
7,972 reviews

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Delta
8.0
Very good
7,972 reviews
Delta
8.0
Very good
7,972 reviews

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
United Airlines
7.4
Good
8,973 reviews
Delta
8.0
Very good
7,972 reviews

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
American Airlines
7.2
Good
11,042 reviews
Delta
8.0
Very good
7,972 reviews

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Iberia
7.0
Good
2,986 reviews
Delta
8.0
Very good
7,972 reviews

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
British Airways
6.7
Okay
7,451 reviews
Delta
8.0
Very good
7,972 reviews

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.

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 15m. 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 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 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 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 October 13, 2025.
AirlineCheapestAverageFlexibilityOn-time
IberiaCheapest$504Average$950FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$524Average$934FlexibilityNo cancel feeOn-time71%
KLMCheapest$530Average$993FlexibilityNo cancel feeOn-time75%
Air FranceCheapest$581Average$1,199FlexibilityNo cancel feeOn-time77%
DeltaCheapest$587Average$1,071FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$606Average$1,186FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$634Average$887FlexibilityNo cancel feeOn-time70%
Virgin AtlanticCheapest$668Average$1,145FlexibilityNo cancel feeOn-time72%
Air CanadaCheapest$759Average$1,031FlexibilityNo cancel feeOn-time67%
LufthansaCheapest$941Average$1,678FlexibilityNo cancel feeOn-time76%

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