$375+ Cheap flights from Austin (AUS) to Porto (OPO)
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 8/18. Fares are subject to change and may not be available on all flights or dates of travel.
AUS — OPO
May 26 — Jun 21
Round-trip
1 adult, Economy
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Find cheap flights from Austin to Porto with Cheapflights
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Cheapest flights from Austin to PortoExplore the most affordable flight options available from Austin to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 26, 2026.
Explore the most affordable flight options available from Austin to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 26, 2026.
This Air Canada deal was found by Cheapflights users on 4/23. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2210:25 am
AUS
- OPO
1 stop14h 35m
Air Canada
Tue 9/2912:15 pm
OPO
- AUS
2 stops39h 42m
Air Canada
Deal found 4/23![Air Canada logo]()
$790
This KAYAK deal was found by Cheapflights users on 4/22. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/141:00 pm
AUS
- OPO
2 stops17h 50m
Lufthansa
Thu 1/71:40 pm
OPO
- AUS
2 stops38h 49m
Lufthansa
Deal found 4/22![Lufthansa logo]()
$792
This Air Canada deal was found by Cheapflights users on 4/23. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2210:25 am
AUS
- OPO
1 stop14h 35m
Air Canada
Thu 10/18:40 am
OPO
- AUS
2 stops41h 21m
Air Canada
Deal found 4/23![Air Canada logo]()
$793
This Air Canada deal was found by Cheapflights users on 4/23. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/215:05 pm
AUS
- OPO
2 stops31h 55m
Air Canada
Tue 9/2912:15 pm
OPO
- AUS
2 stops36h 10m
Air Canada
Deal found 4/23![Air Canada logo]()
$794
This Air Canada deal was found by Cheapflights users on 4/23. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/215:05 pm
AUS
- OPO
2 stops31h 55m
Air Canada
Thu 10/18:40 am
OPO
- AUS
2 stops41h 21m
Air Canada
Deal found 4/23![Air Canada logo]()
$798
This Air Canada deal was found by Cheapflights users on 4/23. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2010:25 am
AUS
- OPO
2 stops25h 50m
Air Canada
Tue 9/2912:15 pm
OPO
- AUS
2 stops36h 10m
Air Canada
Deal found 4/23![Air Canada logo]()
$799
This Air Canada deal was found by Cheapflights users on 4/23. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2010:25 am
AUS
- OPO
2 stops25h 50m
Air Canada
Thu 10/18:40 am
OPO
- AUS
2 stops41h 21m
Air Canada
Deal found 4/23![Air Canada logo]()
$803
This Delta deal was found by Cheapflights users on 4/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2011:20 am
AUS
- OPO
1 stop17h 05m
Delta
Wed 9/305:00 am
OPO
- AUS
2 stops22h 41m
Delta
Deal found 4/23![Delta logo]()
$804
This Delta deal was found by Cheapflights users on 4/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/216:05 pm
AUS
- OPO
1 stop34h 50m
Delta
Wed 9/305:00 am
OPO
- AUS
2 stops22h 41m
Delta
Deal found 4/23![Delta logo]()
$808
This Delta deal was found by Cheapflights users on 4/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/196:45 pm
AUS
- OPO
1 stop33h 40m
Delta
Tue 9/295:00 am
OPO
- AUS
2 stops22h 41m
Delta
Deal found 4/23![Delta logo]()
$809
This Delta deal was found by Cheapflights users on 4/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/203:35 pm
AUS
- OPO
1 stop12h 50m
Delta
Fri 10/25:55 am
OPO
- AUS
2 stops21h 46m
Delta
Deal found 4/23![Delta logo]()
$811
This KAYAK deal was found by Cheapflights users on 4/22. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/141:00 pm
AUS
- OPO
2 stops17h 50m
Lufthansa
Wed 1/66:00 am
OPO
- AUS
2 stops20h 16m
Lufthansa
Deal found 4/22![Lufthansa logo]()
$812
Best flights from Austin to PortoDiscover carefully curated flight deals from Austin to Porto that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 26, 2026.
Discover carefully curated flight deals from Austin to Porto that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 26, 2026.
This KLM deal was found by Cheapflights users on 4/22. 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 10/711:20 am
AUS
- OPO
1 stop17h 10m
KLM
Fri 10/1612:45 pm
OPO
- AUS
2 stops17h 47m
KLM
Deal found 4/22![KLM logo]()
$816
This Delta deal was found by Cheapflights users on 4/24. 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 10/71:05 pm
AUS
- OPO
2 stops20h 20m
Delta
Fri 10/1612:45 pm
OPO
- AUS
2 stops17h 47m
Delta
Deal found 4/24![Delta logo]()
$820
This United Airlines deal was found by Cheapflights users on 4/24. 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.
Sun 9/137:17 am
AUS
- OPO
1 stop20h 28m
United Airlines
Sat 9/199:00 am
OPO
- AUS
1 stop14h 09m
United Airlines
Deal found 4/24![United Airlines logo]()
$962
This Delta deal was found by Cheapflights users on 4/22. 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.
Sun 7/123:50 pm
AUS
- OPO
2 stops17h 40m
Delta
Fri 7/315:55 am
OPO
- AUS
2 stops22h 12m
Delta
Deal found 4/22![Delta logo]()
$967
This United Airlines deal was found by Cheapflights users on 4/22. 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 10/76:10 am
AUS
- OPO
2 stops18h 50m
United Airlines
Sat 10/1711:20 am
OPO
- AUS
2 stops30h 40m
United Airlines
Deal found 4/22![United Airlines logo]()
$1,001
This Delta deal was found by Cheapflights users on 4/22. 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.
Sun 7/124:55 pm
AUS
- OPO
2 stops16h 35m
Delta
Wed 7/2912:40 pm
OPO
- AUS
2 stops26h 47m
Delta
Deal found 4/22![Delta logo]()
$971
This United Airlines deal was found by Cheapflights users on 4/25. 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.
Sun 9/275:40 pm
AUS
- OPO
1 stop34h 05m
United Airlines
Sun 10/1812:10 pm
OPO
- AUS
1 stop31h 50m
United Airlines
Deal found 4/25![United Airlines logo]()
$1,004
This Delta deal was found by Cheapflights users on 4/22. 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.
Fri 7/1011:15 am
AUS
- OPO
1 stop17h 15m
Delta
Thu 7/309:25 am
OPO
- AUS
2 stops18h 42m
Delta
Deal found 4/22![Delta logo]()
$1,022
This United Airlines deal was found by Cheapflights users on 4/25. 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 6/107:05 am
AUS
- OPO
1 stop17h 50m
United Airlines
Fri 6/196:00 am
OPO
- AUS
2 stops20h 35m
United Airlines
Deal found 4/25![United Airlines logo]()
$1,047
This United Airlines deal was found by Cheapflights users on 4/25. 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 6/37:15 am
AUS
- OPO
2 stops17h 45m
United Airlines
Tue 6/1612:15 pm
OPO
- AUS
1 stop14h 00m
United Airlines
Deal found 4/25![United Airlines logo]()
$1,049
This United Airlines deal was found by Cheapflights users on 4/26. 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.
Tue 6/97:07 pm
AUS
- OPO
2 stops29h 53m
United Airlines
Fri 6/196:00 am
OPO
- AUS
2 stops20h 35m
United Airlines
Deal found 4/26![United Airlines logo]()
$1,050
Last-minute flights from Austin to PortoDiscover last-minute flight deals from Austin to Porto. Data last updated April 26, 2026 and is based on user searches.
Discover last-minute flight deals from Austin to Porto. Data last updated April 26, 2026 and is based on user searches.
This Air France deal was found by Cheapflights users on 4/25. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/263:34 pm
AUS
- OPO
2 stops17h 51m
Multiple Airlines
Sun 5/311:45 am
OPO
- AUS
1 stop34h 25m
Multiple Airlines
Deal found 4/25![Multiple Airlines logo]()
$950
This Lufthansa deal was found by Cheapflights users on 4/23. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/44:05 pm
AUS
- OPO
1 stop17h 35m
Lufthansa
Mon 5/183:10 pm
OPO
- AUS
1 stop28h 50m
Lufthansa
Deal found 4/23![Lufthansa logo]()
$887
This Lufthansa deal was found by Cheapflights users on 4/25. 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.
Mon 5/44:05 pm
AUS
- OPO
1 stop17h 35m
Lufthansa
Tue 5/1912:05 pm
OPO
- AUS
1 stop31h 55m
Lufthansa
Deal found 4/25![Lufthansa logo]()
$900
This KLM deal was found by Cheapflights users on 4/24. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/46:05 pm
AUS
- OPO
1 stop15h 25m
KLM
Wed 5/204:20 pm
OPO
- AUS
1 stop29h 50m
KLM
Deal found 4/24![KLM logo]()
$935
This Delta deal was found by Cheapflights users on 4/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/46:05 pm
AUS
- OPO
1 stop34h 50m
Delta
Wed 5/1311:45 am
OPO
- AUS
1 stop34h 25m
Delta
Deal found 4/23![Delta logo]()
$936
This Delta deal was found by Cheapflights users on 4/25. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/411:53 am
AUS
- OPO
2 stops21h 32m
Delta
Tue 5/195:00 am
OPO
- AUS
2 stops23h 11m
Delta
Deal found 4/25![Delta logo]()
$937
This Delta deal was found by Cheapflights users on 4/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/412:31 pm
AUS
- OPO
2 stops20h 54m
Delta
Wed 5/205:00 am
OPO
- AUS
2 stops25h 31m
Delta
Deal found 4/23![Delta logo]()
$945
This Gotogate deal was found by Cheapflights users on 4/23. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/54:05 pm
AUS
- OPO
1 stop17h 40m
Multiple Airlines
Tue 5/1212:05 pm
OPO
- AUS
2 stops28h 53m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$929
This Lufthansa deal was found by Cheapflights users on 4/24. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/134:05 pm
AUS
- OPO
1 stop18h 45m
Lufthansa
Tue 5/1912:05 pm
OPO
- AUS
1 stop31h 55m
Lufthansa
Deal found 4/24![Lufthansa logo]()
$938
One-way flights from Austin to PortoSearch for one-way flight options from Austin to Porto. Find affordable one-way fares based on user searches. Data last updated April 26, 2026.
Search for one-way flight options from Austin to Porto. Find affordable one-way fares based on user searches. Data last updated April 26, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 4/22. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1810:30 pm
AUS
- OPO
1 stop15h 00m
British Airways
Deal found 4/22![British Airways logo]()
$375
This United Airlines deal was found by Cheapflights users on 4/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1810:59 am
AUS
- OPO
2 stops16h 46m
United Airlines
Deal found 4/23![United Airlines logo]()
$376
This Air Canada deal was found by Cheapflights users on 4/22. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/217:10 am
AUS
- OPO
3 stops17h 50m
Multiple Airlines
Deal found 4/22![Multiple Airlines logo]()
$380
This Finnair deal was found by Cheapflights users on 4/23. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/185:55 pm
AUS
- OPO
1 stop19h 35m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$385
This Kiwi.com deal was found by Cheapflights users on 4/25. 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.
Sat 9/122:51 pm
AUS
- OPO
3 stops49h 04m
Multiple Airlines
Deal found 4/25![Multiple Airlines logo]()
$434
This Kiwi.com deal was found by Cheapflights users on 4/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/29:13 pm
AUS
- OPO
3 stops42h 07m
Multiple Airlines
Deal found 4/22![Multiple Airlines logo]()
$457
This Cheapflightsfares deal was found by Cheapflights users on 4/23. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/235:55 pm
AUS
- OPO
1 stop20h 40m
British Airways
Deal found 4/23![British Airways logo]()
$461
This United Airlines deal was found by Cheapflights users on 4/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/2310:59 am
AUS
- OPO
2 stops16h 46m
United Airlines
Deal found 4/23![United Airlines logo]()
$467
This United Airlines deal was found by Cheapflights users on 4/25. 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.
Sat 9/125:00 pm
AUS
- OPO
2 stops31h 55m
United Airlines
Deal found 4/25![United Airlines logo]()
$473
This Kiwi.com deal was found by Cheapflights users on 4/23. 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.
Sun 8/2312:02 pm
AUS
- OPO
3 stops50h 03m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$476
Find flight deals from Austin to Porto
Discover tips and strategies to find the most affordable flight options for your journey from Austin (AUS) to Porto (OPO). 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 April 26, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $790 (Air Canada) |
One-way from | $375 (Cheapflightsfares) |
Popular in | May |
Cheapest in | March |
Average price | $967 |
Cheapflights Fare Finder
Customize your flight search to find flights from Austin to Porto 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 April 26, 2026.
Use the filters below to find and compare flights from Austin to Porto that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
AustinPorto
AUS - OPO
AUSOPO
Austin Bergstrom
Wed 10/7
11:20 am-10:30 am
1 stop17h 10m
Porto
Fri 10/16
12:45 pm-12:32 am
2 stops17h 47m
$816
AustinPorto
AUS - OPO
AUSOPO
Austin Bergstrom
Wed 10/7
1:05 pm-3:25 pm
2 stops20h 20m
Porto
Fri 10/16
12:45 pm-12:32 am
2 stops17h 47m
$820
AustinPorto
AUS - OPO
AUSOPO
Austin Bergstrom
Sun 9/13
7:17 am-9:45 am
1 stop20h 28m
Porto
Sat 9/19
9:00 am-5:09 pm
1 stop14h 09m
$962
AustinPorto
AUS - OPO
AUSOPO
Austin Bergstrom
Sun 7/12
3:50 pm-3:30 pm
2 stops17h 40m
Porto
Fri 7/31
5:55 am-10:07 pm
2 stops22h 12m
$967
AustinPorto
AUS - OPO
AUSOPO
Austin Bergstrom
Sun 7/12
4:55 pm-3:30 pm
2 stops16h 35m
Porto
Wed 7/29
12:40 pm-9:27 am
2 stops26h 47m
$971
AustinPorto
AUS - OPO
AUSOPO
Austin Bergstrom
Wed 10/7
6:10 am-7:00 am
2 stops18h 50m
Porto
Sat 10/17
11:20 am-12:00 pm
2 stops30h 40m
$1,001
AustinPorto
AUS - OPO
AUSOPO
Austin Bergstrom
Sun 9/27
5:40 pm-9:45 am
1 stop34h 05m
Porto
Sun 10/18
12:10 pm-2:00 pm
1 stop31h 50m
$1,004
AustinPorto
AUS - OPO
AUSOPO
Austin Bergstrom
Fri 7/10
11:15 am-10:30 am
1 stop17h 15m
Porto
Thu 7/30
9:25 am-10:07 pm
2 stops18h 42m
$1,022
AustinPorto
AUS - OPO
AUSOPO
Austin Bergstrom
Wed 6/10
7:05 am-6:55 am
1 stop17h 50m
Porto
Fri 6/19
6:00 am-8:35 pm
2 stops20h 35m
$1,047
Quickest round-trip
AustinPorto
AUS - OPO
AUSOPO
Austin Bergstrom
Wed 6/3
7:15 am-7:00 am
2 stops17h 45m
Porto
Tue 6/16
12:15 pm-8:15 pm
1 stop14h 00m
$1,049
Showing 1-10 of 19 resultsSorted by cheapest first
Compare providers for flights from Austin to Porto
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Austin to Porto in April.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Austin-Porto flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Austin-Porto flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Austin-Porto flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Austin-Porto flights, Cheapflights users trust FlightHub the most. FlightHub 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 Austin-Porto 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 Austin to Porto
Have a flexible travel schedule? Discover the best time to fly to Porto from Austin with our price prediction graph.
AUS-OPO
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.
Cheapflights Insights
Everything you need to know about your flight from Austin to Porto
What is the cheapest month to book a flight from Austin to Porto?
Currently, March is the cheapest month in which you can book a flight from Austin to Porto (average of $657). Flying from Austin to Porto in May is currently the most expensive (average of $1,289). 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.
How much does it cost to fly round-trip from Austin to Porto?
Reviews of airlines servicing Porto
Get insights into the airlines that provide service to Porto. 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 Porto. Reviews last updated April 26, 2026.
Read through reviews of airlines operating flights from Austin to Porto, such as Delta,KLM, andUnited Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Crew
8.5
Overall
7.9
Food
7.2
Comfort
7.9
Entertainment
7.8
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Boarding
8.1
Crew
8.5
Overall
7.9
Food
7.2
Comfort
7.9
Entertainment
7.8
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Boarding
8.1
Crew
8.5
Overall
7.9
Food
7.2
Comfort
7.9
Entertainment
7.8
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Boarding
8.1
Crew
8.5
Overall
7.9
Food
7.2
Comfort
7.9
Entertainment
7.8
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Boarding
8.1
Crew
8.5
Overall
7.9
Food
7.2
Comfort
7.9
Entertainment
7.8
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Related info for your journey
Find useful and relevant information for your journey from Austin to Porto. 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 Porto?
Book flights to Porto if you plan to visit one of these locationsVila Nova de Gaia
Aveiro
Arcos de Valdevez
Coimbra
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Alternative routes for Austin to Porto
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Complete your trip
Complete your trip to Porto by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Austin to Porto by cabin class
Find flights from Austin to Porto, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Austin and Porto flights
Browse other Austin and Porto flight options. Last updated on April 26, 2026.
Other flights from Austin
Browse through other flights departing from Austin. Flights are based on user searches made on Cheapflights and were last updated on April 26, 2026.
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Check out other popular destinations found by fellow travelers in 2026
Other flights to Porto
Explore flights to Porto departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on April 26, 2026.
Top 4 airlines flying from Austin to Porto
Discover the top 4 airlines that operate flights from Austin to Porto. 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 April 26, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$531 | Average$881 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$541 | Average$1,123 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$589 | Average$850 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$668 | Average$961 | FlexibilityNo cancel fee | On-time76% |