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$474+ 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 9/28. Fares are subject to change and may not be available on all flights or dates of travel.
OPO — AUS
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
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 July 3, 2025.

Round-trip from

$823
(United Airlines)

One-way from

$474
(Mytrip)
From Porto to Austin Bergstrom
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One-way flight from Porto to Austin Bergstrom
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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 July 3, 2025.

This United Airlines deal was found by Cheapflights users on 7/3. 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.
Tue 9/912:05 pmOPO - AUS
2 stops28h 30mUnited Airlines
Tue 9/309:44 amAUS - OPO
2 stops18h 01mUnited Airlines
Deal found 7/3$823
This American Airlines deal was found by Cheapflights users on 7/1. 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.
Tue 9/912:20 pmOPO - AUS
2 stops16h 29mAmerican Airlines
Tue 9/307:20 amAUS - OPO
2 stops18h 15mAmerican Airlines
Deal found 7/1$832
This Booking.com deal was found by Cheapflights users on 7/3. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2812:10 pmOPO - AUS
1 stop13h 51mAir Canada
Mon 9/18:30 amAUS - OPO
2 stops19h 05mAir Canada
Deal found 7/3$837
This Lufthansa deal was found by Cheapflights users on 7/2. 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.
Tue 9/96:00 amOPO - AUS
2 stops22h 05mMultiple Airlines
Tue 9/301:35 pmAUS - OPO
1 stop14h 10mMultiple Airlines
Deal found 7/2$852
This Delta deal was found by Cheapflights users on 7/3. 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.
Wed 7/306:15 amOPO - AUS
2 stops21h 54mDelta
Mon 8/253:53 pmAUS - OPO
2 stops17h 37mDelta
Deal found 7/3$1,057
This KLM deal was found by Cheapflights users on 7/2. 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.
Wed 7/306:15 amOPO - AUS
2 stops18h 09mKLM
Mon 8/256:00 pmAUS - OPO
1 stop17h 55mKLM
Deal found 7/2$1,063

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 3, 2025.
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

Tue 9/9

12:05 pm-10:35 am

2 stops28h 30m

Austin Bergstrom

Tue 9/30

9:44 am-9:45 am

2 stops18h 01m

$823

PortoAustin

OPO - AUS

OPOAUS

Porto

Tue 9/9

12:20 pm-10:49 pm

2 stops16h 29m

Austin Bergstrom

Tue 9/30

7:20 am-7:35 am

2 stops18h 15m

$832

PortoAustin

OPO - AUS

OPOAUS

Porto

Thu 8/28

12:10 pm-8:01 pm

1 stop13h 51m

Austin Bergstrom

Mon 9/1

8:30 am-9:35 am

2 stops19h 05m

$837

PortoAustin

OPO - AUS

OPOAUS

Porto

Tue 9/9

6:00 am-10:05 pm

2 stops22h 05m

Austin Bergstrom

Tue 9/30

1:35 pm-9:45 am

1 stop14h 10m

$852

PortoAustin

OPO - AUS

OPOAUS

Porto

Wed 7/30

6:15 am-10:09 pm

2 stops21h 54m

Austin Bergstrom

Mon 8/25

3:53 pm-3:30 pm

2 stops17h 37m

$1,057

PortoAustin

OPO - AUS

OPOAUS

Porto

Wed 7/30

6:15 am-6:24 pm

2 stops18h 09m

Austin Bergstrom

Mon 8/25

6:00 pm-5:55 pm

1 stop17h 55m

$1,063

PortoAustin

OPO - AUS

OPOAUS

Porto

Sun 9/28

6:25 am-11:07 am

2 stops34h 42m

$474

PortoAustin

OPO - AUS

OPOAUS

Porto

Sun 9/28

4:20 pm-4:00 pm

1 stop29h 40m

$781

PortoAustin

OPO - AUS

OPOAUS

Porto

Tue 8/5

12:20 pm-11:58 pm

2 stops17h 38m

$986

PortoAustin

OPO - AUS

OPOAUS

Porto

Sat 8/2

8:35 pm-8:48 pm

2 stops30h 13m

$1,070

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

Showing 1-10 of 12 results
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.

Reviews of airlines servicing Austin

Get insights into the airlines that provide service to Austin. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Austin. Reviews last updated July 3, 2025.
Read through reviews of airlines operating flights from Porto to Austin, such as Delta, KLM, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,982 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,982 reviews
Delta
8.0
Very good
7,982 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,367 reviews
Delta
8.0
Very good
7,982 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,861 reviews
Delta
8.0
Very good
7,982 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,982 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air Canada
7.1
Good
9,681 reviews
Delta
8.0
Very good
7,982 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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.

  • What are the cheapest airlines flying from Porto to Austin round-trip?

    Currently priced at $823, United Airlines will fly you from Porto to Austin and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from American Airlines and Air Canada - these airlines can fly you to your destination from $832 and $837, respectively.

  • What are the cheapest airlines to fly from Porto to Austin one-way?

    $781 is the cheapest one-way deal found within the past few days, from KLM. You may also be able to find cheap deals on American Airlines and Iberia, with prices starting from $986 and $1,070, respectively.

  • 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.

  • What is the cheapest month to book a flight from Porto to Austin?

    Currently, January is the cheapest month in which you can book a flight from Porto to Austin (average of $286). Flying from Porto to Austin in March is currently the most expensive (average of $362). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Porto?

Book flights to Porto if you plan to visit one of these locations
San Marcos
Georgetown
Fredericksburg
Pflugerville
Dripping Springs
Cedar Park
Canyon Lake
Bastrop
Round Rock
Seguin
Horseshoe Bay

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Porto to Austin

Discover the top airline that operate flights from Porto to Austin. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$809Average$1,055FlexibilityNo cancel feeOn-time75%

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