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$405+ 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 9/16. Fares are subject to change and may not be available on all flights or dates of travel.
OPO — AUS
Sep 11 — Sep 181
Fri 9/11
Fri 9/18
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 August 12, 2026.

This Rumbo deal was found by Cheapflights users on 8/11. 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.
Thu 9/101:30 pm -
1 stop31h 55m
Mon 9/144:25 pm -
1 stop13h 20m
Deal found 8/11$771
This Rumbo deal was found by Cheapflights users on 8/10. 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 Rumbo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/211:30 pm -
1 stop31h 55m
Mon 9/284:25 pm -
1 stop13h 20m
Deal found 8/10$826
This Kiwi.com deal was found by Cheapflights users on 8/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/109:30 pm -
2 stops42h 33m
Mon 9/144:25 pm -
1 stop13h 20m
Deal found 8/11$899
This Kiwi.com deal was found by Cheapflights users on 8/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/216:15 am -
2 stops33h 48m
Mon 9/284:25 pm -
1 stop13h 20m
Deal found 8/10$902
This Expedia deal was found by Cheapflights users on 8/10. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2412:25 pm -
2 stops16h 11m
Thu 10/18:00 am -
2 stops21h 45m
Deal found 8/10$932
This Expedia deal was found by Cheapflights users on 8/10. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/218:40 pm -
2 stops31h 15m
Mon 9/286:07 am -
2 stops19h 33m
Deal found 8/10$935
This Kiwi.com deal was found by Cheapflights users on 8/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/101:30 pm -
1 stop31h 55m
Fri 10/1610:52 am -
2 stops42h 18m
Deal found 8/12$937
This Lufthansa deal was found by Cheapflights users on 8/7. 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.
Thu 9/106:00 am -
2 stops20h 34m
Mon 9/1410:40 am -
1 stop17h 05m
Deal found 8/7$963
This Delta deal was found by Cheapflights users on 8/8. 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.
Mon 10/265:00 am -
1 stop17h 05m
Tue 11/311:12 am -
2 stops17h 23m
Deal found 8/8$964
This United Airlines deal was found by Cheapflights users on 8/8. 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.
Wed 9/236:00 am -
2 stops22h 45m
Wed 9/306:06 pm -
2 stops33h 39m
Deal found 8/8$965
This Delta deal was found by Cheapflights users on 8/8. 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.
Tue 10/275:00 am -
2 stops22h 32m
Wed 11/412:02 pm -
2 stops16h 33m
Deal found 8/8$969

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 August 12, 2026.

Round-trip from

$771
(Rumbo)

One-way from

$405
(Kiwi.com)
From Porto to Austin Bergstrom
Search Deals
One-way flight from Porto to Austin Bergstrom
Search Deals

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 August 12, 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 Porto - AUS Austin Bergstrom

OPOAUS

Porto

Mon 9/21

6:15 am-10:03 am

2 stops33h 48m

Austin Bergstrom

Mon 9/28

4:25 pm-11:45 am

1 stop13h 20m

$902

PortoAustin

OPO Porto - AUS Austin Bergstrom

OPOAUS

Porto

Mon 9/21

8:40 pm-9:55 pm

2 stops31h 15m

Austin Bergstrom

Mon 9/28

6:07 am-7:40 am

2 stops19h 33m

$935

PortoAustin

OPO Porto - AUS Austin Bergstrom

OPOAUS

Porto

Sat 1/23

8:40 pm-8:22 am

2 stops17h 42m

Austin Bergstrom

Sat 2/6

6:55 pm-7:15 pm

1 stop18h 20m

$953

PortoAustin

OPO Porto - AUS Austin Bergstrom

OPOAUS

Porto

Thu 9/10

6:00 am-8:34 pm

2 stops20h 34m

Austin Bergstrom

Mon 9/14

10:40 am-9:45 am

1 stop17h 05m

$963

PortoAustin

OPO Porto - AUS Austin Bergstrom

OPOAUS

Porto

Thu 9/10

6:00 am-8:44 pm

2 stops20h 44m

Austin Bergstrom

Mon 9/14

9:39 am-6:55 am

2 stops15h 16m

$963

PortoAustin

OPO Porto - AUS Austin Bergstrom

OPOAUS

Porto

Thu 9/24

6:00 am-8:19 pm

2 stops20h 19m

Austin Bergstrom

Thu 10/1

7:15 am-9:45 am

2 stops20h 30m

$965

PortoAustin

OPO Porto - AUS Austin Bergstrom

OPOAUS

Porto

Thu 9/10

5:00 am-10:27 pm

2 stops23h 27m

Austin Bergstrom

Mon 9/14

4:30 pm-3:25 pm

2 stops16h 55m

$970

PortoAustin

OPO Porto - AUS Austin Bergstrom

OPOAUS

Porto

Sat 1/23

12:35 pm-2:05 pm

1 stop31h 30m

Austin Bergstrom

Fri 2/5

11:59 am-12:50 pm

2 stops18h 51m

$984
Quickest round-trip

PortoAustin

OPO Porto - AUS Austin Bergstrom

OPOAUS

Porto

Tue 1/26

5:00 am-5:39 pm

2 stops18h 39m

Austin Bergstrom

Sat 2/6

6:01 pm-3:25 pm

1 stop15h 24m

$986

PortoAustin

OPO Porto - AUS Austin Bergstrom

OPOAUS

Porto

Tue 10/27

12:35 pm-11:33 pm

1 stop15h 58m

Austin Bergstrom

Fri 11/6

6:00 am-9:30 am

1 stop21h 30m

$987

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/10

Showing 1-10 of 20 resultsSorted by cheapest first
1
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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 20h 34m. 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
Round Rock
Cedar Park
San Marcos
Bastrop
Fredericksburg
Pflugerville
Dripping Springs
Georgetown
Seguin
Canyon Lake

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