$511+ Cheap flights from Porto (OPO) to Austin (AUS)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/28. Fares are subject to change and may not be available on all flights or dates of travel.
OPO — AUS
Oct 25 — Nov 11
Round-trip
1 adult, Economy
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Find cheap flights from Porto to Austin with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Porto to Austin
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Cheapest flights from Porto to AustinExplore 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 September 25, 2026.
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 September 25, 2026.
This Delta deal was found by Cheapflights users on 9/22. 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 10/85:00 am -
1 stop17h 10m
Mon 10/124:49 pm -
2 stops16h 36m
Deal found 9/22![Delta logo]()
$852
This Delta deal was found by Cheapflights users on 9/24. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/215:00 am -
2 stops18h 30m
Wed 11/1110:59 am -
2 stops17h 36m
Deal found 9/24![Delta logo]()
$853
This Delta deal was found by Cheapflights users on 9/22. 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 10/205:00 am -
2 stops23h 08m
Tue 11/107:30 am -
2 stops21h 05m
Deal found 9/22![Delta logo]()
$857
This Delta deal was found by Cheapflights users on 9/21. 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 10/225:00 am -
2 stops18h 30m
Mon 11/96:15 pm -
2 stops21h 45m
Deal found 9/21![Delta logo]()
$858
This KLM deal was found by Cheapflights users on 9/22. 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 10/215:00 am -
2 stops18h 30m
Thu 11/126:01 pm -
1 stop17h 04m
Deal found 9/22![KLM logo]()
$868
This American Airlines deal was found by Cheapflights users on 9/23. 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.
Wed 10/2112:25 pm -
2 stops28h 10m
Sat 11/145:11 am -
2 stops20h 29m
Deal found 9/23![American Airlines logo]()
$874
Best flights from Porto to AustinDiscover carefully curated flight deals from Porto to Austin that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 25, 2026.
Discover carefully curated flight deals from Porto to Austin that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 25, 2026.
This Delta deal was found by Cheapflights users on 9/24. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/215:00 am -
2 stops18h 30m
Wed 11/117:30 am -
1 stop18h 45m
Deal found 9/24![Delta logo]()
$856
This United Airlines deal was found by Cheapflights users on 9/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/286:00 am -
2 stops18h 04m
Mon 11/25:15 am -
3 stops22h 15m
Deal found 9/25![United Airlines logo]()
$950
This Lufthansa deal was found by Cheapflights users on 9/25. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2812:35 pm -
1 stop31h 30m
Mon 11/210:24 am -
1 stop17h 06m
Deal found 9/25![Lufthansa logo]()
$977
This Delta deal was found by Cheapflights users on 9/21. 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 10/225:00 am -
2 stops18h 30m
Mon 11/96:15 pm -
2 stops21h 45m
Deal found 9/21![Delta logo]()
$858
This United Airlines deal was found by Cheapflights users on 9/24. 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.
Wed 10/286:00 am -
2 stops18h 04m
Fri 11/65:15 am -
3 stops22h 15m
Deal found 9/24![United Airlines logo]()
$953
This United Airlines deal was found by Cheapflights users on 9/22. 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 10/216:00 am -
2 stops20h 19m
Mon 11/95:15 am -
2 stops22h 15m
Deal found 9/22![United Airlines logo]()
$958
Last-minute flights from Porto to AustinDiscover last-minute flight deals from Porto to Austin. Data last updated September 25, 2026 and is based on user searches.
Discover last-minute flight deals from Porto to Austin. Data last updated September 25, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 9/22. 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 10/85:00 am -
1 stop17h 10m
Mon 10/124:49 pm -
2 stops16h 36m
Deal found 9/22![Delta logo]()
$852
This Delta deal was found by Cheapflights users on 9/22. 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 10/205:00 am -
2 stops23h 08m
Tue 11/107:30 am -
2 stops21h 05m
Deal found 9/22![Delta logo]()
$857
This Delta deal was found by Cheapflights users on 9/24. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/215:00 am -
2 stops18h 30m
Wed 11/1110:59 am -
2 stops17h 36m
Deal found 9/24![Delta logo]()
$853
This KLM deal was found by Cheapflights users on 9/22. 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 10/215:00 am -
2 stops18h 30m
Thu 11/126:01 pm -
1 stop17h 04m
Deal found 9/22![KLM logo]()
$868
This American Airlines deal was found by Cheapflights users on 9/23. 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.
Wed 10/2112:25 pm -
2 stops28h 10m
Sat 11/145:11 am -
2 stops20h 29m
Deal found 9/23![American Airlines logo]()
$874
This Delta deal was found by Cheapflights users on 9/21. 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 10/225:00 am -
2 stops18h 30m
Mon 11/96:15 pm -
2 stops21h 45m
Deal found 9/21![Delta logo]()
$858
One-way flights from Porto to AustinSearch for one-way flight options from Porto to Austin. Find affordable one-way fares based on user searches. Data last updated September 25, 2026.
Search for one-way flight options from Porto to Austin. Find affordable one-way fares based on user searches. Data last updated September 25, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2812:20 pm -
3 stops51h 38m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/24![Multiple Airlines logo]()
$511
This Kiwi.com deal was found by Cheapflights users on 9/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/275:45 pm -
3 stops49h 09m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/25![Multiple Airlines logo]()
$532
This Kiwi.com deal was found by Cheapflights users on 9/23. 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 10/2610:25 pm -
3 stops42h 14m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/23![Multiple Airlines logo]()
$539
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 September 25, 2026.
Round-trip from | $852 (Delta) |
|---|---|
One-way from | $511 (Kiwi.com) |
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 7,457,451 searches. Data last updated September 25, 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
Cheapest round-trip
PortoAustin
OPO Porto - AUS Austin Bergstrom
OPOAUS
Porto
Thu 12/3
5:00 am-4:05 pm
1 stop17h 05m
Austin Bergstrom
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$607
PortoAustin
OPO Porto - AUS Austin Bergstrom
OPOAUS
Porto
Mon 3/15
5:00 am-10:05 pm
2 stops22h 05m
Austin Bergstrom
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$613
PortoAustin
OPO Porto - AUS Austin Bergstrom
OPOAUS
Porto
Wed 3/17
5:00 am-12:32 am
2 stops24h 32m
Austin Bergstrom
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$613
PortoAustin
OPO Porto - AUS Austin Bergstrom
OPOAUS
Porto
Tue 3/16
6:25 pm-5:45 pm
1 stop28h 20m
Austin Bergstrom
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$667
PortoAustin
OPO Porto - AUS Austin Bergstrom
OPOAUS
Porto
Mon 3/15
5:35 pm-5:45 pm
1 stop29h 10m
Austin Bergstrom
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$667
PortoAustin
OPO Porto - AUS Austin Bergstrom
OPOAUS
Porto
Sat 3/20
8:00 pm-5:45 pm
1 stop26h 45m
Austin Bergstrom
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$788
PortoAustin
OPO Porto - AUS Austin Bergstrom
OPOAUS
Porto
Wed 10/21
5:00 am-5:30 pm
2 stops18h 30m
Austin Bergstrom
Wed 11/11
7:30 am-8:15 am
1 stop18h 45m
$856
PortoAustin
OPO Porto - AUS Austin Bergstrom
OPOAUS
Porto
Thu 10/22
5:00 am-5:30 pm
2 stops18h 30m
Austin Bergstrom
Mon 11/9
6:15 pm-10:00 pm
2 stops21h 45m
$858
Quickest round-trip
PortoAustin
OPO Porto - AUS Austin Bergstrom
OPOAUS
Porto
Thu 10/22
1:25 pm-11:10 pm
1 stop15h 45m
Austin Bergstrom
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$870
PortoAustin
OPO Porto - AUS Austin Bergstrom
OPOAUS
Porto
Fri 10/23
9:25 pm-8:35 pm
1 stop29h 10m
Austin Bergstrom
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$894
Showing 1-10 of 15 resultsSorted by cheapest first
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.
OPO-AUS
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.
Traveling to a place near Austin?
Book flights to Austin if you plan to visit one of these locationsCedar Park
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