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$414+ 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 9/30. Fares are subject to change and may not be available on all flights or dates of travel.
OPO — AUS
Aug 19 — Aug 261
Wed 8/19
Wed 8/26
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 July 20, 2026.

This Rumbo deal was found by Cheapflights users on 7/16. 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 8/131:30 pm
OPO
-
AUS
1 stop31h 55m
Air Transat
Mon 8/174:25 pm
AUS
-
OPO
1 stop13h 20m
Air Transat
Deal found 7/16$764
This Rumbo deal was found by Cheapflights users on 7/19. 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
OPO
-
AUS
1 stop31h 55m
Air Transat
Mon 9/144:25 pm
AUS
-
OPO
1 stop13h 20m
Air Transat
Deal found 7/19$766
This Trip.com deal was found by Cheapflights users on 7/17. 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.
Thu 9/31:30 pm
OPO
-
AUS
1 stop31h 55m
Air Transat
Thu 9/104:25 pm
AUS
-
OPO
1 stop13h 20m
Air Transat
Deal found 7/17$783
This Kiwi.com deal was found by Cheapflights users on 7/19. 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
OPO
-
AUS
2 stops42h 42m
Multiple Airlines
Mon 9/144:25 pm
AUS
-
OPO
1 stop13h 20m
Multiple Airlines
Deal found 7/19$858
This Iberia deal was found by Cheapflights users on 7/19. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1012:25 pm
OPO
-
AUS
2 stops17h 20m
Iberia
Mon 9/1412:02 pm
AUS
-
OPO
2 stops17h 43m
Iberia
Deal found 7/19$898
This Iberia deal was found by Cheapflights users on 7/17. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/312:25 pm
OPO
-
AUS
2 stops17h 34m
Iberia
Thu 9/105:35 pm
AUS
-
OPO
2 stops16h 25m
Iberia
Deal found 7/17$899
This Iberia deal was found by Cheapflights users on 7/17. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/312:25 pm
OPO
-
AUS
2 stops17h 34m
Multiple Airlines
Thu 9/105:55 pm
AUS
-
OPO
1 stop20h 35m
Multiple Airlines
Deal found 7/17$928
This United Airlines deal was found by Cheapflights users on 7/15. 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.
Fri 11/206:00 am
OPO
-
AUS
2 stops20h 46m
United Airlines
Mon 11/238:40 am
AUS
-
OPO
2 stops18h 50m
United Airlines
Deal found 7/15$944
This Kiwi.com deal was found by Cheapflights users on 7/16. 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 8/131:30 pm
OPO
-
AUS
1 stop31h 55m
Multiple Airlines
Mon 8/1711:00 am
AUS
-
OPO
2 stops30h 40m
Multiple Airlines
Deal found 7/16$948
This United Airlines deal was found by Cheapflights users on 7/17. 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.
Thu 12/36:00 am
OPO
-
AUS
2 stops20h 56m
United Airlines
Sun 12/136:30 am
AUS
-
OPO
1 stop21h 00m
United Airlines
Deal found 7/17$953
This Delta deal was found by Cheapflights users on 7/17. 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.
Thu 12/35:00 am
OPO
-
AUS
1 stop17h 05m
Delta
Sun 12/137:30 am
AUS
-
OPO
1 stop19h 35m
Delta
Deal found 7/17$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 July 20, 2026.

Round-trip from

$764
(Rumbo)

One-way from

$414
(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 July 20, 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
Quickest round-trip

PortoAustin

OPO - AUS

OPOAUS

Porto

Thu 9/10

12:25 pm-11:45 pm

2 stops17h 20m

Austin Bergstrom

Mon 9/14

12:02 pm-11:45 am

2 stops17h 43m

$898

PortoAustin

OPO - AUS

OPOAUS

Porto

Fri 11/20

6:00 am-6:48 pm

2 stops18h 48m

Austin Bergstrom

Mon 11/23

7:40 am-9:30 am

1 stop19h 50m

$944

PortoAustin

OPO - AUS

OPOAUS

Porto

Thu 9/3

6:00 am-7:12 pm

2 stops19h 12m

Austin Bergstrom

Thu 9/10

6:17 pm-6:50 am

1 stop30h 33m

$945

PortoAustin

OPO - AUS

OPOAUS

Porto

Thu 8/13

1:30 pm-3:25 pm

1 stop31h 55m

Austin Bergstrom

Mon 8/17

11:00 am-11:40 pm

2 stops30h 40m

$948
Cheapest one-way

PortoAustin

OPO - AUS

OPOAUS

Porto

Wed 9/30

7:00 am-10:12 am

2 stops33h 12m

$414

PortoAustin

OPO - AUS

OPOAUS

Porto

Wed 9/9

8:40 pm-9:55 pm

2 stops31h 15m

$524
Quickest one-way

PortoAustin

OPO - AUS

OPOAUS

Porto

Tue 9/29

12:25 pm-10:36 pm

2 stops16h 11m

$531

PortoAustin

OPO - AUS

OPOAUS

Porto

Mon 7/27

1:30 pm-3:25 pm

1 stop31h 55m

$577

PortoAustin

OPO - AUS

OPOAUS

Porto

Sun 10/4

8:40 pm-10:48 pm

2 stops32h 08m

$633

PortoAustin

OPO - AUS

OPOAUS

Porto

Sun 9/20

6:00 pm-1:40 pm

1 stop25h 40m

$737

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/17

Showing 1-10 of 13 resultsSorted by cheapest first
1
2

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 20m. 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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Bastrop
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Seguin
Canyon Lake

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