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$367+ Cheap flights from Porto (OPO) 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.
OPO — AUS
May 11 — May 181
Mon 5/11
Mon 5/18
1 adult, Economy
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Cheap flight deals from Porto to Austin

Cheapest flights from Porto to Austin
Explore the most affordable flight options available from Porto 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 4/6. 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 Lufthansa 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/166:00 am
OPO
-
AUS
2 stops21h 24m
Lufthansa
Sun 5/2410:09 am
AUS
-
OPO
1 stop17h 36m
Lufthansa
Deal found 4/6$945
This Lufthansa 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/206:00 am
OPO
-
AUS
2 stops18h 53m
Lufthansa
Wed 5/2710:09 am
AUS
-
OPO
1 stop14h 46m
Lufthansa
Deal found 4/7$946
This United Airlines 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 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 4/8$948
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 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 4/10. 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.
Sat 5/165:00 am
OPO
-
AUS
1 stop17h 10m
Delta
Sun 5/242:48 pm
AUS
-
OPO
2 stops13h 37m
Delta
Deal found 4/10$961

Find flight deals from Porto to Austin

Discover tips and strategies to find the most affordable flight options for your journey from Porto (OPO) to Austin (AUS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated April 11, 2026.

Round-trip from

$684
(Trip.com)

One-way from

$367
(Kiwi.com)
From Porto to Austin Bergstrom
Search Deals
One-way flight from Porto to Austin Bergstrom
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Porto 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 Porto to Austin that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortoAustin

OPO - AUS

OPOAUS

Porto

Sat 5/16

6:00 am-9:24 pm

2 stops21h 24m

Austin Bergstrom

Sun 5/24

10:09 am-9:45 am

1 stop17h 36m

$945

PortoAustin

OPO - AUS

OPOAUS

Porto

Wed 5/20

6:00 am-9:24 pm

2 stops21h 24m

Austin Bergstrom

Wed 5/27

9:35 am-6:55 am

2 stops15h 20m

$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

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
Quickest round-trip

PortoAustin

OPO - AUS

OPOAUS

Porto

Sat 5/16

5:00 am-4:10 pm

1 stop17h 10m

Austin Bergstrom

Sun 5/24

2:48 pm-10:25 am

2 stops13h 37m

$961

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

PortoAustin

OPO - AUS

OPOAUS

Porto

Mon 4/27

5:00 am-4:10 pm

1 stop17h 10m

Austin Bergstrom

Sat 5/2

4:46 pm-3:30 pm

2 stops16h 44m

$1,071
Cheapest one-way

PortoAustin

OPO - AUS

OPOAUS

Porto

Fri 5/22

6:05 am-9:31 am

3 stops57h 26m

$375

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/10

Showing 1-10 of 17 resultsSorted by cheapest first
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Best time to book a flight from Porto to Austin

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

Related info for your journey

Find useful and relevant information for your journey from Porto to Austin. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Porto to Austin?

    Departing from Porto to Austin will take you 17h 10m. The distance from Porto to Austin is about 4829 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Porto 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.

See more FAQs

Traveling to a place near Austin?

Book flights to Austin if you plan to visit one of these locations
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Horseshoe Bay

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