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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 3/12. Fares are subject to change and may not be available on all flights or dates of travel.
OPO — AUS
Feb 7 — Feb 141
Sat 2/7
Sat 2/14
1 adult, Economy
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Cheap 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 January 8, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$739
(American Airlines)

One-way from

$386
(Kiwi.com)

Popular in

August

Cheapest in

March

Average price

$816
Provider with most accurate pricing for Porto-Austin Bergstrom flight deals.
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Provider most trusted by Cheapflights users for Porto-Austin Bergstrom flights.
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From Porto to Austin Bergstrom
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One-way flight from Porto to Austin Bergstrom
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Highest demand for flights based on searches. 8% potential increase in price ($77 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($24 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Find 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 January 8, 2026.

This Iberia deal was found by Cheapflights users on 1/8. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/158:20 amOPO - AUS
2 stops17h 48mIberia
Thu 1/221:43 pmAUS - OPO
2 stops16h 02mIberia
Deal found 1/8$739
This American Airlines deal was found by Cheapflights users on 1/6. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/2312:25 pmOPO - AUS
2 stops28h 09mAmerican Airlines
Mon 1/261:43 pmAUS - OPO
2 stops16h 02mAmerican Airlines
Deal found 1/6$740
This Delta deal was found by Cheapflights users on 1/8. 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.
Thu 1/156:35 amOPO - AUS
1 stop15h 35mDelta
Thu 1/227:20 amAUS - OPO
2 stops21h 05mDelta
Deal found 1/8$770
This KLM deal was found by Cheapflights users on 1/8. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/156:35 amOPO - AUS
1 stop15h 35mKLM
Thu 1/226:05 pmAUS - OPO
1 stop34h 25mKLM
Deal found 1/8$776
This Mytrip deal was found by Cheapflights users on 1/8. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/156:35 pmOPO - AUS
2 stops27h 29mMultiple Airlines
Thu 1/2211:30 amAUS - OPO
3 stops21h 30mMultiple Airlines
Deal found 1/8$978
This United Airlines deal was found by Cheapflights users on 1/7. 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.
Fri 1/2312:30 pmOPO - AUS
2 stops33h 16mUnited Airlines
Mon 1/269:50 amAUS - OPO
3 stops21h 15mUnited Airlines
Deal found 1/7$1,070

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 January 8, 2026.
Use the filters below to find and compare flights from Porto to Austin that are best for you.

Fly from

Porto

Fly to

Austin

Route

Depart

Return

Price

PortoAustin

OPO - AUS

OPOAUS

Porto

Fri 1/23

8:20 am-9:39 pm

2 stops19h 19m

Austin Bergstrom

Mon 1/26

2:15 pm-4:00 pm

2 stops19h 45m

$739

PortoAustin

OPO - AUS

OPOAUS

Porto

Fri 1/23

12:30 pm-3:46 pm

2 stops33h 16m

Austin Bergstrom

Mon 1/26

9:50 am-1:05 pm

3 stops21h 15m

$1,070

PortoAustin

OPO - AUS

OPOAUS

Porto

Tue 3/24

8:45 am-3:19 pm

3 stops59h 34m

$390

PortoAustin

OPO - AUS

OPOAUS

Porto

Mon 3/23

8:35 am-12:15 pm

2 stops32h 40m

$477

PortoAustin

OPO - AUS

OPOAUS

Porto

Wed 3/25

6:45 am-8:48 pm

3 stops43h 03m

$490

PortoAustin

OPO - AUS

OPOAUS

Porto

Mon 3/16

8:35 am-12:15 pm

2 stops32h 40m

$514

PortoAustin

OPO - AUS

OPOAUS

Porto

Sat 3/14

1:00 pm-12:12 am

3 stops40h 12m

$528

PortoAustin

OPO - AUS

OPOAUS

Porto

Sun 3/22

6:15 am-9:29 pm

3 stops44h 14m

$534

PortoAustin

OPO - AUS

OPOAUS

Porto

Wed 3/18

8:20 am-11:53 pm

2 stops20h 33m

$542

PortoAustin

OPO - AUS

OPOAUS

Porto

Fri 3/20

5:35 pm-12:12 am

3 stops35h 37m

$543

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/7

Showing 1-10 of 14 results
1
2
  • Most accurate provider: When it comes to deals on Porto-Austin flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Porto-Austin flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Porto-Austin flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Porto-Austin flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Porto-Austin flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 19h 19m. 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?

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