$360+ Cheap flights from Austin (AUS) to Portugal
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 — LIS
Jun 18 — Jun 251
Round-trip
1 adult, Economy
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Cheapest flights from Austin to PortugalExplore the most affordable flight options available from Austin to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 19, 2026.
Explore the most affordable flight options available from Austin to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 19, 2026.
This United Airlines deal was found by Cheapflights users on 5/17. 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.
Mon 11/162:00 pm
AUS
- OPO
1 stop13h 30m
United Airlines
Thu 11/196:00 am
OPO
- AUS
2 stops23h 38m
United Airlines
Deal found 5/17![United Airlines logo]()
$742
This United Airlines deal was found by Cheapflights users on 5/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/177:15 am
AUS
- LIS
1 stop21h 00m
United Airlines
Wed 11/2511:20 am
LIS
- AUS
2 stops30h 40m
United Airlines
Deal found 5/19![United Airlines logo]()
$776
This KLM deal was found by Cheapflights users on 5/16. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/223:35 pm
AUS
- OPO
1 stop11h 30m
KLM
Fri 11/275:40 am
OPO
- AUS
2 stops21h 02m
KLM
Deal found 5/16![KLM logo]()
$781
This United Airlines deal was found by Cheapflights users on 5/17. 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.
Tue 10/272:00 pm
AUS
- LIS
1 stop13h 10m
United Airlines
Tue 11/31:00 pm
LIS
- AUS
2 stops27h 53m
United Airlines
Deal found 5/17![United Airlines logo]()
$781
This United Airlines deal was found by Cheapflights users on 5/15. 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.
Sun 12/67:00 pm
AUS
- LIS
1 stop31h 10m
United Airlines
Fri 1/81:00 pm
LIS
- AUS
1 stop29h 19m
United Airlines
Deal found 5/15![United Airlines logo]()
$783
This United Airlines deal was found by Cheapflights users on 5/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/28:30 am
AUS
- LIS
1 stop17h 40m
United Airlines
Fri 12/115:00 am
LIS
- AUS
2 stops24h 46m
United Airlines
Deal found 5/19![United Airlines logo]()
$784
This KLM deal was found by Cheapflights users on 5/16. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2212:20 pm
AUS
- OPO
2 stops14h 45m
Multiple Airlines
Fri 11/275:40 am
OPO
- AUS
2 stops17h 59m
Multiple Airlines
Deal found 5/16![Multiple Airlines logo]()
$785
This Delta deal was found by Cheapflights users on 5/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/27:25 am
AUS
- LIS
1 stop19h 35m
Delta
Fri 12/115:00 am
LIS
- AUS
2 stops22h 49m
Delta
Deal found 5/19![Delta logo]()
$785
This KLM deal was found by Cheapflights users on 5/18. 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 12/211:20 am
AUS
- LIS
1 stop14h 40m
KLM
Fri 12/115:00 am
LIS
- AUS
2 stops18h 21m
KLM
Deal found 5/18![KLM logo]()
$786
This Mytrip deal was found by Cheapflights users on 5/19. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/178:53 am
AUS
- LIS
2 stops18h 57m
Multiple Airlines
Wed 11/255:00 am
LIS
- AUS
2 stops18h 29m
Multiple Airlines
Deal found 5/19![Multiple Airlines logo]()
$787
This Booking.com deal was found by Cheapflights users on 5/17. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/279:35 am
AUS
- LIS
2 stops19h 15m
Multiple Airlines
Tue 11/35:00 am
LIS
- AUS
2 stops21h 56m
Multiple Airlines
Deal found 5/17![Multiple Airlines logo]()
$788
This United Airlines deal was found by Cheapflights users on 5/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/218:00 pm
AUS
- OPO
2 stops31h 30m
United Airlines
Wed 12/212:30 pm
OPO
- AUS
1 stop31h 45m
United Airlines
Deal found 5/16![United Airlines logo]()
$792
Best flights from Austin to PortugalDiscover carefully curated flight deals from Austin to Portugal that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 19, 2026.
Discover carefully curated flight deals from Austin to Portugal that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 19, 2026.
This Delta deal was found by Cheapflights users on 5/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/73:35 pm
AUS
- OPO
1 stop12h 55m
Delta
Fri 10/165:00 am
OPO
- AUS
2 stops18h 39m
Delta
Deal found 5/19![Delta logo]()
$803
This United Airlines deal was found by Cheapflights users on 5/16. 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 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
1 stop21h 35m
United Airlines
Fri 10/1612:35 pm
OPO
- AUS
2 stops28h 33m
United Airlines
Deal found 5/16![United Airlines logo]()
$815
This Orbitz deal was found by Cheapflights users on 5/19. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/126:55 pm
AUS
- FNC
2 stops60h 35m
Iberia
Wed 11/182:10 pm
FNC
- AUS
2 stops36h 51m
Iberia
Deal found 5/19![Iberia logo]()
$869
This oojo deal was found by Cheapflights users on 5/18. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/126:55 pm
AUS
- FNC
1 stop33h 15m
British Airways
Wed 11/183:10 pm
FNC
- AUS
1 stop31h 40m
British Airways
Deal found 5/18![British Airways logo]()
$880
This KLM deal was found by Cheapflights users on 5/18. 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.
Sat 8/157:35 am
AUS
- OPO
1 stop20h 45m
KLM
Wed 10/144:20 pm
OPO
- AUS
1 stop29h 50m
KLM
Deal found 5/18![KLM logo]()
$914
This KAYAK deal was found by Cheapflights users on 5/15. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/237:15 am
AUS
- FAO
1 stop20h 40m
Brussels Airlines
Sat 8/296:50 pm
FAO
- AUS
2 stops27h 34m
Brussels Airlines
Deal found 5/15![Brussels Airlines logo]()
$1,038
This KAYAK deal was found by Cheapflights users on 5/17. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/2310:40 am
AUS
- FAO
1 stop17h 15m
Multiple Airlines
Sat 8/296:50 pm
FAO
- AUS
2 stops31h 44m
Multiple Airlines
Deal found 5/17![Multiple Airlines logo]()
$1,038
This Justfly.com deal was found by Cheapflights users on 5/16. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/131:10 pm
AUS
- TER
2 stops40h 50m
Air Canada
Mon 11/2312:35 pm
TER
- AUS
2 stops52h 44m
Air Canada
Deal found 5/16![Air Canada logo]()
$1,166
This KAYAK deal was found by Cheapflights users on 5/15. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/217:05 am
AUS
- PDL
1 stop20h 35m
Lufthansa
Tue 7/2811:00 am
PDL
- AUS
1 stop16h 33m
Lufthansa
Deal found 5/15![Lufthansa logo]()
$1,226
This United Airlines deal was found by Cheapflights users on 5/18. 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.
Mon 8/106:09 am
AUS
- OPO
1 stop18h 46m
United Airlines
Fri 8/216:00 am
OPO
- AUS
2 stops23h 55m
United Airlines
Deal found 5/18![United Airlines logo]()
$863
This Delta deal was found by Cheapflights users on 5/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/1211:15 am
AUS
- OPO
1 stop17h 10m
Delta
Tue 7/2812:25 pm
OPO
- AUS
1 stop14h 28m
Delta
Deal found 5/19![Delta logo]()
$920
This KLM deal was found by Cheapflights users on 5/15. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/57:35 am
AUS
- OPO
1 stop20h 55m
KLM
Thu 8/135:00 am
OPO
- AUS
2 stops18h 19m
KLM
Deal found 5/15![KLM logo]()
$920
This United Airlines deal was found by Cheapflights users on 5/18. 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 8/912:15 pm
AUS
- OPO
2 stops15h 30m
United Airlines
Wed 8/192:25 pm
OPO
- AUS
2 stops27h 24m
United Airlines
Deal found 5/18![United Airlines logo]()
$885
This KLM deal was found by Cheapflights users on 5/17. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/12:40 pm
AUS
- FAO
2 stops22h 50m
KLM
Tue 9/298:35 pm
FAO
- AUS
2 stops24h 55m
KLM
Deal found 5/17![KLM logo]()
$925
This Delta deal was found by Cheapflights users on 5/18. 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 8/910:50 am
AUS
- OPO
2 stops17h 35m
Delta
Mon 8/245:00 am
OPO
- AUS
2 stops23h 35m
Delta
Deal found 5/18![Delta logo]()
$928
This Kiwi.com deal was found by Cheapflights users on 5/14. 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 7/134:25 pm
AUS
- PDL
1 stop11h 40m
Multiple Airlines
Mon 7/205:30 pm
PDL
- AUS
2 stops28h 09m
Multiple Airlines
Deal found 5/14![Multiple Airlines logo]()
$1,055
This oojo deal was found by Cheapflights users on 5/14. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/15:55 pm
AUS
- FAO
1 stop19h 15m
British Airways
Tue 9/293:40 pm
FAO
- AUS
1 stop29h 45m
British Airways
Deal found 5/14![British Airways logo]()
$1,096
This United Airlines deal was found by Cheapflights users on 5/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/25:40 pm
AUS
- OPO
1 stop34h 05m
United Airlines
Sat 10/106:00 am
OPO
- AUS
2 stops19h 50m
United Airlines
Deal found 5/19![United Airlines logo]()
$930
This Delta deal was found by Cheapflights users on 5/18. 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 9/213:35 pm
AUS
- LIS
2 stops17h 20m
Delta
Thu 10/225:00 am
LIS
- AUS
1 stop17h 10m
Delta
Deal found 5/18![Delta logo]()
$940
This KLM deal was found by Cheapflights users on 5/19. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/2312:05 pm
AUS
- FAO
2 stops39h 05m
KLM
Sat 8/299:05 pm
FAO
- AUS
2 stops26h 14m
KLM
Deal found 5/19![KLM logo]()
$984
This FlightHub deal was found by Cheapflights users on 5/17. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/142:15 pm
AUS
- FNC
2 stops18h 15m
Lufthansa
Sat 11/211:10 pm
FNC
- AUS
2 stops31h 05m
Lufthansa
Deal found 5/17![Lufthansa logo]()
$1,232
This United Airlines deal was found by Cheapflights users on 5/18. 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 9/152:24 pm
AUS
- OPO
3 stops34h 36m
United Airlines
Sun 9/2012:15 pm
OPO
- AUS
2 stops38h 29m
United Airlines
Deal found 5/18![United Airlines logo]()
$941
This American Airlines deal was found by Cheapflights users on 5/17. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/1411:10 am
AUS
- FNC
2 stops20h 20m
Multiple Airlines
Sat 11/2111:00 am
FNC
- AUS
3 stops33h 41m
Multiple Airlines
Deal found 5/17![Multiple Airlines logo]()
$1,163
This Delta deal was found by Cheapflights users on 5/14. 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 7/152:30 pm
AUS
- LIS
1 stop14h 15m
Delta
Thu 7/305:00 am
LIS
- AUS
2 stops22h 58m
Delta
Deal found 5/14![Delta logo]()
$986
This United Airlines deal was found by Cheapflights users on 5/17. 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.
Wed 7/88:20 am
AUS
- FAO
2 stops19h 30m
United Airlines
Thu 7/1611:40 am
FAO
- AUS
2 stops29h 16m
United Airlines
Deal found 5/17![United Airlines logo]()
$951
This KAYAK deal was found by Cheapflights users on 5/15. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/147:00 pm
AUS
- TER
2 stops35h 45m
Multiple Airlines
Mon 11/236:40 am
TER
- AUS
2 stops18h 26m
Multiple Airlines
Deal found 5/15![Multiple Airlines logo]()
$1,186
This Delta deal was found by Cheapflights users on 5/18. 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 8/122:32 pm
AUS
- LIS
1 stop14h 13m
Delta
Tue 8/185:35 am
LIS
- AUS
2 stops21h 18m
Delta
Deal found 5/18![Delta logo]()
$993
This United Airlines deal was found by Cheapflights users on 5/18. 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 7/187:44 pm
AUS
- FAO
2 stops32h 11m
United Airlines
Tue 7/2811:40 am
FAO
- AUS
1 stop17h 45m
United Airlines
Deal found 5/18![United Airlines logo]()
$951
This Delta deal was found by Cheapflights users on 5/17. 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.
Tue 8/411:15 am
AUS
- OPO
1 stop17h 15m
Delta
Sat 8/156:30 am
OPO
- AUS
2 stops20h 25m
Delta
Deal found 5/17![Delta logo]()
$998
This KAYAK deal was found by Cheapflights users on 5/14. 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.
Tue 6/911:28 am
AUS
- TER
2 stops17h 07m
Multiple Airlines
Tue 6/166:05 pm
TER
- AUS
1 stop20h 19m
Multiple Airlines
Deal found 5/14![Multiple Airlines logo]()
$1,259
Last-minute flights from Austin to PortugalDiscover last-minute flight deals from Austin to Portugal. Data last updated May 19, 2026 and is based on user searches.
Discover last-minute flight deals from Austin to Portugal. Data last updated May 19, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 5/14. 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 5/235:24 pm
AUS
- PDL
2 stops34h 16m
United Airlines
Fri 6/511:00 am
PDL
- AUS
2 stops16h 42m
United Airlines
Deal found 5/14![United Airlines logo]()
$946
This Kiwi.com deal was found by Cheapflights users on 5/18. 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.
Fri 6/54:25 pm
AUS
- LIS
2 stops23h 20m
Multiple Airlines
Thu 6/1111:35 am
LIS
- AUS
1 stop33h 50m
Multiple Airlines
Deal found 5/18![Multiple Airlines logo]()
$1,020
This Kiwi.com deal was found by Cheapflights users on 5/16. 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 6/114:25 pm
AUS
- LIS
2 stops24h 10m
Multiple Airlines
Mon 6/2211:35 am
LIS
- AUS
1 stop33h 50m
Multiple Airlines
Deal found 5/16![Multiple Airlines logo]()
$992
This Kiwi.com deal was found by Cheapflights users on 5/16. 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 6/114:25 pm
AUS
- LIS
2 stops24h 10m
Multiple Airlines
Sun 6/2111:35 am
LIS
- AUS
1 stop33h 50m
Multiple Airlines
Deal found 5/16![Multiple Airlines logo]()
$1,014
This Kiwi.com deal was found by Cheapflights users on 5/16. 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.
Fri 6/124:25 pm
AUS
- LIS
2 stops23h 20m
Multiple Airlines
Mon 6/2211:35 am
LIS
- AUS
1 stop33h 50m
Multiple Airlines
Deal found 5/16![Multiple Airlines logo]()
$909
This Kiwi.com deal was found by Cheapflights users on 5/16. 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.
Fri 6/124:25 pm
AUS
- LIS
2 stops23h 20m
Multiple Airlines
Sun 6/2111:35 am
LIS
- AUS
1 stop33h 50m
Multiple Airlines
Deal found 5/16![Multiple Airlines logo]()
$931
This Mytrip deal was found by Cheapflights users on 5/15. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/124:25 pm
AUS
- LIS
2 stops23h 20m
Multiple Airlines
Fri 6/1911:35 am
LIS
- AUS
2 stops29h 10m
Multiple Airlines
Deal found 5/15![Multiple Airlines logo]()
$1,016
This Kiwi.com deal was found by Cheapflights users on 5/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/144:25 pm
AUS
- OPO
1 stop13h 20m
Multiple Airlines
Sun 6/218:25 am
OPO
- AUS
2 stops37h 00m
Multiple Airlines
Deal found 5/17![Multiple Airlines logo]()
$988
This Mytrip deal was found by Cheapflights users on 5/17. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/1610:25 am
AUS
- LIS
3 stops29h 20m
Multiple Airlines
Tue 6/238:15 am
LIS
- AUS
2 stops32h 30m
Multiple Airlines
Deal found 5/17![Multiple Airlines logo]()
$979
This Mytrip deal was found by Cheapflights users on 5/17. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/1610:25 am
AUS
- OPO
3 stops30h 45m
Multiple Airlines
Tue 6/238:25 am
OPO
- AUS
2 stops32h 20m
Multiple Airlines
Deal found 5/17![Multiple Airlines logo]()
$1,010
This United Airlines deal was found by Cheapflights users on 5/17. 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.
Tue 6/166:09 am
AUS
- OPO
1 stop18h 06m
United Airlines
Tue 6/2312:15 pm
OPO
- AUS
2 stops32h 26m
United Airlines
Deal found 5/17![United Airlines logo]()
$1,033
This Justfly.com deal was found by Cheapflights users on 5/16. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/2410:25 am
AUS
- OPO
1 stop14h 35m
Air Canada
Tue 7/712:15 pm
OPO
- AUS
2 stops32h 26m
Air Canada
Deal found 5/16![Air Canada logo]()
$1,032
One-way flights from Austin to PortugalSearch for one-way flight options from Austin to Portugal. Find affordable one-way fares based on user searches. Data last updated May 19, 2026.
Search for one-way flight options from Austin to Portugal. Find affordable one-way fares based on user searches. Data last updated May 19, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/189:58 am
AUS
- OPO
3 stops24h 27m
Multiple Airlines
Deal found 5/15![Multiple Airlines logo]()
$360
This FlightHub deal was found by Cheapflights users on 5/15. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1810:25 am
AUS
- OPO
1 stop14h 35m
Air Canada
Deal found 5/15![Air Canada logo]()
$375
This KLM deal was found by Cheapflights users on 5/15. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1812:05 pm
AUS
- OPO
2 stops16h 25m
KLM
Deal found 5/15![KLM logo]()
$376
This Cheapflightsfares deal was found by Cheapflights users on 5/15. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/56:55 pm
AUS
- LIS
1 stop21h 00m
British Airways
Deal found 5/15![British Airways logo]()
$400
This Mytrip deal was found by Cheapflights users on 5/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/711:40 am
AUS
- LIS
2 stops24h 35m
Multiple Airlines
Deal found 5/16![Multiple Airlines logo]()
$430
This Kiwi.com deal was found by Cheapflights users on 5/16. 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.
Wed 7/1510:37 am
AUS
- LIS
3 stops31h 03m
Multiple Airlines
Deal found 5/16![Multiple Airlines logo]()
$439
This Cheapflightsfares deal was found by Cheapflights users on 5/18. 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 9/65:55 pm
AUS
- LIS
1 stop17h 50m
British Airways
Deal found 5/18![British Airways logo]()
$447
This Expedia deal was found by Cheapflights users on 5/16. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/75:55 pm
AUS
- LIS
1 stop18h 00m
British Airways
Deal found 5/16![British Airways logo]()
$452
This Kiwi.com deal was found by Cheapflights users on 5/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/511:27 am
AUS
- LIS
3 stops39h 03m
Multiple Airlines
Deal found 5/15![Multiple Airlines logo]()
$453
This deal was found by Cheapflights users on 5/18. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/155:55 pm
AUS
- LIS
1 stop15h 45m
British Airways
Deal found 5/18![British Airways logo]()
$457
This FlightHub deal was found by Cheapflights users on 5/18. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/2110:25 am
AUS
- OPO
1 stop14h 35m
Air Canada
Deal found 5/18![Air Canada logo]()
$462
This FlightHub deal was found by Cheapflights users on 5/19. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/219:00 am
AUS
- LIS
2 stops18h 20m
Air Canada
Deal found 5/19![Air Canada logo]()
$462
Find flight deals from Austin to Portugal
Keep the following information in mind while searching for Austin to Portugal flight deals. Data was last updated May 19, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $781 (United Airlines) |
One-way from | $360 (Kiwi.com) |
Popular in | June |
Cheapest in | February |
Average price | $947 |
Cheapflights Fare Finder
Customize your flight search to find flights from Austin to Portugal 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 May 19, 2026.
Use the filters below to find and compare flights from Austin to Portugal that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
AustinPorto
AUS - OPO
AUSOPO
Austin Bergstrom
Wed 10/7
3:35 pm-10:30 am
1 stop12h 55m
Porto
Fri 10/16
5:00 am-5:39 pm
2 stops18h 39m
$803
AustinPorto
AUS - OPO
AUSOPO
Austin Bergstrom
Wed 10/7
6:10 am-9:45 am
1 stop21h 35m
Porto
Fri 10/16
12:35 pm-11:08 am
2 stops28h 33m
$815
AustinPorto
AUS - OPO
AUSOPO
Austin Bergstrom
Mon 8/10
6:09 am-6:55 am
1 stop18h 46m
Porto
Fri 8/21
6:00 am-11:55 pm
2 stops23h 55m
$863
AustinFunchal
AUS - FNC
AUSFNC
Austin Bergstrom
Thu 11/12
6:55 pm-1:30 pm
2 stops60h 35m
Funchal Madeira
Wed 11/18
2:10 pm-9:01 pm
2 stops36h 51m
$869
AustinFunchal
AUS - FNC
AUSFNC
Austin Bergstrom
Thu 11/12
6:55 pm-10:10 am
1 stop33h 15m
Funchal Madeira
Wed 11/18
3:10 pm-4:50 pm
1 stop31h 40m
$880
AustinPorto
AUS - OPO
AUSOPO
Austin Bergstrom
Sun 8/9
12:15 pm-9:45 am
2 stops15h 30m
Porto
Wed 8/19
2:25 pm-11:49 am
2 stops27h 24m
$885
AustinPorto
AUS - OPO
AUSOPO
Austin Bergstrom
Sat 8/15
7:35 am-10:20 am
1 stop20h 45m
Porto
Wed 10/14
4:20 pm-4:10 pm
1 stop29h 50m
$914
AustinPorto
AUS - OPO
AUSOPO
Austin Bergstrom
Sun 7/12
11:15 am-10:25 am
1 stop17h 10m
Porto
Tue 7/28
12:25 pm-8:53 pm
1 stop14h 28m
$920
AustinPorto
AUS - OPO
AUSOPO
Austin Bergstrom
Wed 8/5
7:35 am-10:30 am
1 stop20h 55m
Porto
Thu 8/13
5:00 am-5:19 pm
2 stops18h 19m
$920
AustinFaro
AUS - FAO
AUSFAO
Austin Bergstrom
Tue 9/1
2:40 pm-7:30 pm
2 stops22h 50m
Faro
Tue 9/29
8:35 pm-3:30 pm
2 stops24h 55m
$925
Showing 1-10 of 53 resultsSorted by cheapest first
Best time to book a flight from Austin to Portugal
Have a flexible travel schedule? Discover the best time to fly to Portugal from Austin with our price prediction graph.
AUS-OPO
AUS-FNC
AUS-FAO
AUS-TER
AUS-PDL
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 Portugal
AUS-PT0
AUS-OPO
AUS-FNC
AUS-FAO
AUS-TER
How far ahead should I book a flight from Austin to Portugal?
The best time to book flights from Austin to Portugal is 85 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest month to book a flight from Austin to Portugal?
Currently, January is the cheapest month in which you can book a flight from Austin to Portugal (average of $310). Flying from Austin to Portugal in July is currently the most expensive (average of $726). 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.
Reviews of airlines servicing Portugal
Get insights into the airlines that provide service to Portugal. 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 Portugal. Reviews last updated May 19, 2026.
Peruse reviews from past customers who have flown with Delta,KLM, andUnited Airlines from Austin to Portugal to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.8
Comfort
7.8
Boarding
8.1
Food
7.2
Overall
7.9
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Entertainment
7.8
Comfort
7.8
Boarding
8.1
Food
7.2
Overall
7.9
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Entertainment
7.8
Comfort
7.8
Boarding
8.1
Food
7.2
Overall
7.9
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Entertainment
7.8
Comfort
7.8
Boarding
8.1
Food
7.2
Overall
7.9
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Entertainment
7.8
Comfort
7.8
Boarding
8.1
Food
7.2
Overall
7.9
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Entertainment
7.8
Comfort
7.8
Boarding
8.1
Food
7.2
Overall
7.9
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Related info for your journey
Find useful and relevant information for your journey from Austin to Portugal. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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Alternative routes for Austin to Portugal
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Portugal by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Austin to Portugal by cabin class
Find flights from Austin to Portugal, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Austin and Portugal flights
Browse other Austin and Portugal flight options. Last updated on May 19, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Austin to Portugal flights
Consider these flights traveling from Austin to Portugal.
Fly to Portugal regions
Consider these flights traveling to Portugal regions.
Top 8 airlines flying from Austin to Portugal
Discover the top 8 airlines that operate flights from Austin to Portugal. 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 May 19, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$486 | Average$908 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$510 | Average$825 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$541 | Average$978 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$581 | Average$1,031 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$605 | Average$1,034 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$620 | Average$1,097 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$648 | Average$797 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$758 | Average$1,362 | FlexibilityNo cancel fee | On-time67% |