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Portugal

$340+ 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 10/24. Fares are subject to change and may not be available on all flights or dates of travel.
AUS — LIS
Aug 8 — Aug 151
Sat 8/8
Sat 8/15
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 July 9, 2026.

This eDestinos deal was found by Cheapflights users on 7/7. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/291:42 pm
AUS
-
LIS
2 stops14h 18m
Virgin Atlantic
Tue 11/311:15 am
LIS
-
AUS
1 stop17h 32m
Virgin Atlantic
Deal found 7/7$692
This Gotogate deal was found by Cheapflights users on 7/7. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/3012:05 pm
AUS
-
LIS
1 stop15h 15m
Multiple Airlines
Thu 12/105:00 am
LIS
-
AUS
1 stop15h 05m
Multiple Airlines
Deal found 7/7$712
This Air Transat deal was found by Cheapflights users on 7/7. 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 Air Transat is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/254:25 pm
AUS
-
OPO
1 stop13h 20m
Air Transat
Mon 10/121:30 pm
OPO
-
AUS
1 stop31h 55m
Air Transat
Deal found 7/7$714
This United Airlines deal was found by Cheapflights users on 7/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/269:55 am
AUS
-
LIS
1 stop19h 45m
United Airlines
Tue 11/35:00 am
LIS
-
AUS
1 stop15h 05m
United Airlines
Deal found 7/7$722
This United Airlines deal was found by Cheapflights users on 7/5. 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.
Mon 11/27:15 am
AUS
-
LIS
1 stop21h 05m
United Airlines
Tue 11/175:00 am
LIS
-
AUS
1 stop15h 05m
United Airlines
Deal found 7/5$723
This United Airlines deal was found by Cheapflights users on 7/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/272:25 pm
AUS
-
LIS
1 stop12h 45m
United Airlines
Tue 11/35:00 am
LIS
-
AUS
1 stop15h 05m
United Airlines
Deal found 7/7$724
This KLM deal was found by Cheapflights users on 7/5. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/42:30 pm
AUS
-
LIS
1 stop12h 30m
KLM
Wed 11/113:35 pm
LIS
-
AUS
1 stop30h 30m
KLM
Deal found 7/5$725
This United Airlines deal was found by Cheapflights users on 7/5. 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.
Tue 11/242:25 pm
AUS
-
LIS
1 stop11h 45m
United Airlines
Tue 12/812:50 pm
LIS
-
AUS
3 stops36h 19m
United Airlines
Deal found 7/5$726
This United Airlines deal was found by Cheapflights users on 7/5. 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 11/47:40 am
AUS
-
LIS
2 stops17h 15m
United Airlines
Tue 11/175:00 am
LIS
-
AUS
1 stop15h 05m
United Airlines
Deal found 7/5$727
This United Airlines deal was found by Cheapflights users on 7/4. 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 11/29:36 am
AUS
-
LIS
2 stops18h 44m
United Airlines
Thu 11/125:00 am
LIS
-
AUS
1 stop15h 05m
United Airlines
Deal found 7/4$728
This Delta deal was found by Cheapflights users on 7/4. 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 11/36:45 pm
AUS
-
LIS
2 stops16h 45m
Delta
Wed 11/1111:30 am
LIS
-
AUS
1 stop34h 35m
Delta
Deal found 7/4$729
This Delta deal was found by Cheapflights users on 7/4. 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 11/46:25 am
AUS
-
LIS
2 stops20h 35m
Delta
Wed 11/1111:30 am
LIS
-
AUS
1 stop34h 35m
Delta
Deal found 7/4$730

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 July 9, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$692
(eDestinos)

One-way from

$340
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$1,020
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. 15% potential increase in price ($167 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($30 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
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 July 9, 2026.
Use the filters below to find and compare flights from Austin to Portugal that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Mon 11/23

6:01 pm-3:25 pm

1 stop15h 24m

Porto

Thu 12/3

5:00 am-4:05 pm

1 stop17h 05m

$736

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Mon 11/23

7:30 am-10:35 am

2 stops21h 05m

Porto

Wed 12/2

11:15 am-4:05 pm

1 stop34h 50m

$737

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Sun 12/6

6:30 am-9:30 am

1 stop21h 00m

Porto

Wed 12/9

6:00 am-8:56 pm

2 stops20h 56m

$741

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Mon 11/23

12:27 pm-9:30 am

2 stops15h 03m

Porto

Thu 12/3

6:00 am-9:45 pm

2 stops21h 45m

$745

AustinLisbon

AUS - LIS

AUSLIS

Austin Bergstrom

Wed 11/4

10:52 am-9:00 am

2 stops16h 08m

Lisbon Humberto Delgado

Tue 11/10

5:30 am-9:49 pm

2 stops22h 19m

$747

AustinLisbon

AUS - LIS

AUSLIS

Austin Bergstrom

Sun 10/18

6:00 am-8:20 am

1 stop20h 20m

Lisbon Humberto Delgado

Fri 10/30

11:20 am-7:00 pm

2 stops36h 40m

$756

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Tue 10/13

11:25 am-10:30 am

1 stop17h 05m

Porto

Thu 10/22

5:00 am-4:10 pm

1 stop17h 10m

$763

AustinLisbon

AUS - LIS

AUSLIS

Austin Bergstrom

Sun 12/6

7:15 am-10:05 am

1 stop20h 50m

Lisbon Humberto Delgado

Thu 12/10

5:00 am-2:05 pm

1 stop15h 05m

$773

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Mon 10/5

2:27 pm-3:25 pm

2 stops18h 58m

Porto

Fri 10/9

5:00 am-8:56 pm

2 stops21h 56m

$806

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Wed 10/7

3:59 pm-3:25 pm

2 stops17h 26m

Porto

Fri 10/16

5:00 am-5:30 pm

2 stops18h 30m

$806

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/5

Showing 1-10 of 57 resultsSorted by cheapest first
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6

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 $310). Flying from Austin to Portugal in July is currently the most expensive (average of $726). 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.

How far ahead should I book a flight from Austin to Portugal?

The best time to book flights from Austin to Portugal is 45 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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 July 9, 2026.
Peruse reviews from past customers who have flown with KLM,Delta, andUnited 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.
KLM
7.8
Good
1,534 reviews

Comfort

7.7

Entertainment

7.2

Food

7.3

Crew

8.4

Boarding

7.8

Overall

7.8

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
KLM
7.8
Good
1,534 reviews
KLM
7.8
Good
1,534 reviews

Comfort

7.7

Entertainment

7.2

Food

7.3

Crew

8.4

Boarding

7.8

Overall

7.8

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
Delta
7.8
Good
8,450 reviews
KLM
7.8
Good
1,534 reviews

Comfort

7.7

Entertainment

7.2

Food

7.3

Crew

8.4

Boarding

7.8

Overall

7.8

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
United Airlines
7.4
Good
9,951 reviews
KLM
7.8
Good
1,534 reviews

Comfort

7.7

Entertainment

7.2

Food

7.3

Crew

8.4

Boarding

7.8

Overall

7.8

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
American Airlines
7.1
Good
11,786 reviews
KLM
7.8
Good
1,534 reviews

Comfort

7.7

Entertainment

7.2

Food

7.3

Crew

8.4

Boarding

7.8

Overall

7.8

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
British Airways
6.7
Okay
8,104 reviews
KLM
7.8
Good
1,534 reviews

Comfort

7.7

Entertainment

7.2

Food

7.3

Crew

8.4

Boarding

7.8

Overall

7.8

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful

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 24m. 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?

    $245 is the cheapest one-way deal found within the past few days, from American Airlines. You may also be able to find cheap deals on British Airways and Delta, with prices starting from $295 and $307, 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 $310). Flying from Austin to Portugal in July is currently the most expensive (average of $726). 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

Browse thousands of different options on Cheapflights for your next trip

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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 July 9, 2026.
AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest$360Average$753FlexibilityNo cancel feeOn-time72%
KLMCheapest$486Average$921FlexibilityNo cancel feeOn-time75%
IberiaCheapest$508Average$848FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$508Average$830FlexibilityNo cancel feeOn-time70%
DeltaCheapest$541Average$1,025FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$557Average$884FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$605Average$1,079FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$656Average$1,127FlexibilityNo cancel feeOn-time71%
Air CanadaCheapest$878Average$993FlexibilityNo cancel feeOn-time67%

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