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$386+ 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 5/5. Fares are subject to change and may not be available on all flights or dates of travel.
OPO — AUS
mar 30 — abr 61
seg 3/30
seg 4/6
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 fevereiro 28, 2026.

This United Airlines deal was found by Cheapflights users on 2/26. 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.
qua 6/312:00 pm
OPO
-
AUS
2 stops27h 30m
United Airlines
qua 6/176:40 am
AUS
-
OPO
3 stops21h 05m
United Airlines
Deal found 2/26$859
This United Airlines deal was found by Cheapflights users on 2/24. 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.
sex 4/106:00 am
OPO
-
AUS
2 stops20h 43m
United Airlines
sex 4/177:25 pm
AUS
-
OPO
2 stops32h 20m
United Airlines
Deal found 2/24$860
This United Airlines deal was found by Cheapflights users on 2/24. 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.
qua 3/412:35 pm
OPO
-
AUS
2 stops25h 59m
United Airlines
dom 3/82:18 pm
AUS
-
OPO
2 stops14h 12m
United Airlines
Deal found 2/24$871
This Air Canada deal was found by Cheapflights users on 2/25. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qua 6/36:20 am
OPO
-
AUS
2 stops34h 33m
Air Canada
qua 6/1710:25 am
AUS
-
OPO
1 stop14h 35m
Air Canada
Deal found 2/25$877
This American Airlines deal was found by Cheapflights users on 2/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qua 3/48:40 pm
OPO
-
AUS
2 stops19h 48m
American Airlines
dom 3/810:14 am
AUS
-
OPO
2 stops24h 46m
American Airlines
Deal found 2/25$935

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 fevereiro 28, 2026.

Round-trip from

$741
(Kiwi.com)

One-way from

$386
(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 fevereiro 28, 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

PortoAustin

OPO - AUS

OPOAUS

Porto

qua 6/3

12:00 pm-9:30 am

2 stops27h 30m

Austin Bergstrom

qua 6/17

6:40 am-9:45 am

3 stops21h 05m

$859

PortoAustin

OPO - AUS

OPOAUS

Porto

sex 4/10

12:35 pm-10:43 pm

1 stop16h 08m

Austin Bergstrom

sex 4/17

7:25 pm-9:45 am

2 stops32h 20m

$873

PortoAustin

OPO - AUS

OPOAUS

Porto

qua 6/3

6:20 am-10:53 am

2 stops34h 33m

Austin Bergstrom

qua 6/17

10:25 am-7:00 am

1 stop14h 35m

$877

PortoAustin

OPO - AUS

OPOAUS

Porto

qui 7/2

6:00 am-8:35 pm

2 stops20h 35m

Austin Bergstrom

qui 7/23

10:09 am-6:55 am

1 stop14h 46m

$1,238

PortoAustin

OPO - AUS

OPOAUS

Porto

qui 7/2

5:00 am-4:10 pm

1 stop17h 10m

Austin Bergstrom

qui 7/23

6:05 pm-10:15 pm

1 stop22h 10m

$1,243

PortoAustin

OPO - AUS

OPOAUS

Porto

ter 5/5

8:30 am-8:20 am

3 stops53h 50m

$386

PortoAustin

OPO - AUS

OPOAUS

Porto

ter 6/16

8:20 am-11:59 pm

2 stops21h 39m

$547

PortoAustin

OPO - AUS

OPOAUS

Porto

seg 4/27

8:20 am-9:04 pm

2 stops18h 44m

$553

PortoAustin

OPO - AUS

OPOAUS

Porto

ter 5/5

8:55 pm-3:25 pm

1 stop24h 30m

$579

PortoAustin

OPO - AUS

OPOAUS

Porto

ter 6/16

8:40 pm-10:09 pm

2 stops31h 29m

$672

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/27

Showing 1-10 of 13 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 27h 30m. The distance from Porto to Austin is about 4829 mi.

  • 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
Cedar Park
San Marcos
Fredericksburg
Round Rock
Georgetown
Bastrop
Pflugerville
Dripping Springs
Canyon Lake
Seguin
Horseshoe Bay

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