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$367+ 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 6/2. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — AUS
May 11 — May 181
Mon 5/11
Mon 5/18
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 April 11, 2026.

This Trip.com deal was found by Cheapflights users on 4/8. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/236:05 pm
OPO
-
AUS
1 stop21h 26m
Multiple Airlines
Sat 5/306:00 am
AUS
-
OPO
1 stop23h 05m
Multiple Airlines
Deal found 4/8$684
This Mytrip deal was found by Cheapflights users on 4/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/159:15 pm
LIS
-
AUS
2 stops33h 08m
Multiple Airlines
Mon 5/256:00 am
AUS
-
LIS
3 stops27h 50m
Multiple Airlines
Deal found 4/11$871
This Mytrip deal was found by Cheapflights users on 4/6. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/161:45 pm
OPO
-
AUS
3 stops40h 38m
Multiple Airlines
Sun 5/246:00 am
AUS
-
OPO
3 stops34h 00m
Multiple Airlines
Deal found 4/6$937
This United Airlines deal was found by Cheapflights users on 4/6. 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.
Sat 5/166:00 am
OPO
-
AUS
2 stops23h 56m
United Airlines
Sun 5/246:40 am
AUS
-
OPO
2 stops21h 05m
United Airlines
Deal found 4/6$945
This United Airlines deal was found by Cheapflights users on 4/7. 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.
Wed 5/206:00 am
OPO
-
AUS
2 stops21h 32m
United Airlines
Wed 5/276:40 am
AUS
-
OPO
3 stops21h 05m
United Airlines
Deal found 4/7$946
This KLM deal was found by Cheapflights users on 4/6. 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.
Sat 5/165:00 am
OPO
-
AUS
1 stop17h 10m
KLM
Sun 5/247:30 am
AUS
-
OPO
1 stop20h 55m
KLM
Deal found 4/6$949
This United Airlines deal was found by Cheapflights users on 4/7. 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.
Sat 5/165:05 am
LIS
-
AUS
2 stops23h 44m
United Airlines
Thu 9/37:15 am
AUS
-
LIS
1 stop21h 15m
United Airlines
Deal found 4/7$953
This United Airlines deal was found by Cheapflights users on 4/7. 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 6/15:05 am
LIS
-
AUS
2 stops24h 54m
United Airlines
Wed 6/108:30 am
AUS
-
LIS
2 stops20h 00m
United Airlines
Deal found 4/7$954
This KLM deal was found by Cheapflights users on 4/7. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/145:00 am
OPO
-
AUS
2 stops16h 30m
Multiple Airlines
Mon 9/213:35 pm
AUS
-
OPO
1 stop12h 55m
Multiple Airlines
Deal found 4/7$955
This Delta deal was found by Cheapflights users on 4/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/205:00 am
LIS
-
AUS
1 stop17h 10m
Delta
Tue 5/56:00 pm
AUS
-
LIS
2 stops17h 50m
Delta
Deal found 4/7$955
This Delta deal was found by Cheapflights users on 4/8. 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.
Sat 5/165:00 am
LIS
-
AUS
1 stop17h 10m
Delta
Thu 9/310:55 am
AUS
-
LIS
2 stops18h 20m
Delta
Deal found 4/8$957
This KLM deal was found by Cheapflights users on 4/7. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/205:00 am
LIS
-
AUS
1 stop17h 10m
Multiple Airlines
Tue 5/52:20 pm
AUS
-
LIS
1 stop14h 25m
Multiple Airlines
Deal found 4/7$958

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 April 11, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$684
(Trip.com)

One-way from

$367
(Kiwi.com)

Popular in

June

Cheapest in

May

Average price

$768
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 ($44 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($29 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 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 April 11, 2026.
Use the filters below to find and compare flights from Portugal to Austin that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortoAustin

OPO - AUS

OPOAUS

Porto

Wed 5/20

6:00 am-9:32 pm

2 stops21h 32m

Austin Bergstrom

Wed 5/27

6:40 am-9:45 am

3 stops21h 05m

$946

PortoAustin

OPO - AUS

OPOAUS

Porto

Sat 5/16

6:00 am-11:56 pm

2 stops23h 56m

Austin Bergstrom

Sun 5/24

6:40 am-9:45 am

2 stops21h 05m

$948

PortoAustin

OPO - AUS

OPOAUS

Porto

Sat 5/16

5:00 am-4:10 pm

1 stop17h 10m

Austin Bergstrom

Sun 5/24

7:30 am-10:25 am

1 stop20h 55m

$949

PortoAustin

OPO - AUS

OPOAUS

Porto

Sat 5/16

5:00 am-4:10 pm

1 stop17h 10m

Austin Bergstrom

Sun 5/24

12:27 pm-10:25 am

2 stops15h 58m

$952

LisbonAustin

LIS - AUS

LISAUS

Lisbon Humberto Delgado

Mon 6/1

5:05 am-11:59 pm

2 stops24h 54m

Austin Bergstrom

Wed 6/10

7:15 am-10:30 am

1 stop21h 15m

$956

PortoAustin

OPO - AUS

OPOAUS

Porto

Sat 5/23

5:00 am-6:30 pm

2 stops19h 30m

Austin Bergstrom

Sat 5/30

1:31 pm-10:20 am

2 stops14h 49m

$957

FaroAustin

FAO - AUS

FAOAUS

Faro

Thu 5/7

8:20 pm-3:55 pm

2 stops25h 35m

Austin Bergstrom

Thu 5/14

2:48 pm-6:40 pm

2 stops21h 52m

$965

LisbonAustin

LIS - AUS

LISAUS

Lisbon Humberto Delgado

Sat 5/16

5:00 am-4:10 pm

1 stop17h 10m

Austin Bergstrom

Thu 9/3

10:55 am-11:15 am

2 stops18h 20m

$966

PortoAustin

OPO - AUS

OPOAUS

Porto

Mon 9/14

12:15 pm-10:04 am

1 stop27h 49m

Austin Bergstrom

Mon 9/21

11:20 am-10:30 am

1 stop17h 10m

$969

LisbonAustin

LIS - AUS

LISAUS

Lisbon Humberto Delgado

Wed 6/24

5:00 am-11:10 pm

2 stops24h 10m

Austin Bergstrom

Sat 9/5

7:30 am-8:50 am

2 stops19h 20m

$971

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/7

Showing 1-10 of 52 resultsSorted by cheapest first
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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, October is the cheapest month in which you can book a flight from Portugal to Austin (average of $588). 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.

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 $551 and American Airlines from $632 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, October is the cheapest month in which you can book a flight from Portugal to Austin (average of $588). 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

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