$284+ Cheap flights from Houston 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 10/20. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — LIS
Sep 17 — Sep 241
Round-trip
1 adult, Economy
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Find cheap flights from Houston to Portugal with Cheapflights
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Cheapest flights from Houston to PortugalExplore the most affordable flight options available from Houston to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 18, 2026.
Explore the most affordable flight options available from Houston to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 18, 2026.
This Expedia deal was found by Cheapflights users on 8/16. 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.
Wed 11/411:50 am -
1 stop13h 05m
Wed 11/185:00 am -
1 stop15h 00m
Deal found 8/16![Multiple Airlines logo]()
$701
This Expedia deal was found by Cheapflights users on 8/14. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/711:50 am -
2 stops19h 00m
Fri 12/116:15 am -
2 stops32h 50m
Deal found 8/14![Multiple Airlines logo]()
$702
This Orbitz deal was found by Cheapflights users on 8/15. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2611:50 am -
1 stop17h 50m
Fri 11/611:20 am -
1 stop16h 19m
Deal found 8/15![Air Canada logo]()
$712
This Delta deal was found by Cheapflights users on 8/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/238:05 am -
2 stops20h 30m
Wed 12/211:15 am -
1 stop31h 55m
Deal found 8/15![Delta logo]()
$713
This Gotogate deal was found by Cheapflights users on 8/16. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/2311:50 am -
2 stops18h 15m
Wed 12/212:35 pm -
1 stop31h 25m
Deal found 8/16![Multiple Airlines logo]()
$714
This United Airlines deal was found by Cheapflights users on 8/16. 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.
Mon 12/711:00 am -
1 stop16h 30m
Fri 12/116:00 am -
2 stops18h 44m
Deal found 8/16![United Airlines logo]()
$717
This Expedia deal was found by Cheapflights users on 8/16. 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.
Wed 12/911:50 am -
1 stop13h 05m
Tue 1/121:40 pm -
2 stops37h 54m
Deal found 8/16![Multiple Airlines logo]()
$718
This KLM deal was found by Cheapflights users on 8/15. 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.
Mon 12/77:10 pm -
1 stop20h 50m
Fri 12/115:00 am -
2 stops18h 34m
Deal found 8/15![KLM logo]()
$718
This Air Canada deal was found by Cheapflights users on 8/15. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/711:50 am -
2 stops19h 00m
Fri 12/116:00 am -
2 stops34h 53m
Deal found 8/15![Air Canada logo]()
$721
This United Airlines deal was found by Cheapflights users on 8/13. 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 10/2611:50 am -
1 stop17h 50m
Thu 11/55:00 am -
1 stop15h 00m
Deal found 8/13![United Airlines logo]()
$723
This United Airlines deal was found by Cheapflights users on 8/13. 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 10/252:40 pm -
1 stop12h 30m
Wed 11/45:00 am -
1 stop19h 15m
Deal found 8/13![United Airlines logo]()
$724
This United Airlines deal was found by Cheapflights users on 8/13. 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 10/2611:50 am -
1 stop17h 50m
Fri 11/611:20 am -
2 stops33h 51m
Deal found 8/13![United Airlines logo]()
$725
Best flights from Houston to PortugalDiscover carefully curated flight deals from Houston to Portugal that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 18, 2026.
Discover carefully curated flight deals from Houston to Portugal that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 18, 2026.
This United deal was found by Cheapflights users on 8/14. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/710:00 am -
1 stop17h 30m
Fri 12/116:15 am -
1 stop16h 05m
Deal found 8/14![Multiple Airlines logo]()
$709
This United Airlines deal was found by Cheapflights users on 8/16. 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.
Mon 12/711:00 am -
1 stop16h 30m
Fri 12/116:00 am -
2 stops18h 44m
Deal found 8/16![United Airlines logo]()
$717
This Delta deal was found by Cheapflights users on 8/13. 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 11/106:00 am -
2 stops20h 00m
Wed 11/185:00 am -
2 stops24h 13m
Deal found 8/13![Delta logo]()
$740
This KLM deal was found by Cheapflights users on 8/16. 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.
Wed 10/288:10 pm -
1 stop20h 50m
Thu 11/55:00 am -
1 stop14h 10m
Deal found 8/16![KLM logo]()
$769
This British Airways deal was found by Cheapflights users on 8/15. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/213:30 pm -
1 stop21h 05m
Tue 10/67:35 pm -
1 stop29h 45m
Deal found 8/15![British Airways logo]()
$866
This Finnair deal was found by Cheapflights users on 8/16. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/72:08 pm -
2 stops19h 42m
Mon 10/124:35 pm -
2 stops31h 37m
Deal found 8/16![Finnair logo]()
$912
This Justfly.com deal was found by Cheapflights users on 8/17. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1611:02 am -
2 stops31h 08m
Tue 9/229:25 am -
2 stops31h 33m
Deal found 8/17![TAP AIR PORTUGAL logo]()
$1,084
This Iberia deal was found by Cheapflights users on 8/16. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/301:56 pm -
2 stops16h 29m
Wed 10/71:35 pm -
2 stops36h 14m
Deal found 8/16![Iberia logo]()
$1,167
This United Airlines deal was found by Cheapflights users on 8/14. 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.
Mon 11/211:50 am -
1 stop16h 50m
Tue 11/245:00 am -
1 stop15h 00m
Deal found 8/14![United Airlines logo]()
$723
This United deal was found by Cheapflights users on 8/16. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/231:54 pm -
1 stop13h 36m
Wed 12/24:10 pm -
1 stop27h 50m
Deal found 8/16![Multiple Airlines logo]()
$727
This Delta deal was found by Cheapflights users on 8/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/115:30 pm -
2 stops15h 40m
Thu 11/195:00 am -
2 stops24h 13m
Deal found 8/15![Delta logo]()
$740
This United Airlines deal was found by Cheapflights users on 8/15. 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 1/176:00 am -
1 stop20h 10m
Fri 1/295:00 am -
1 stop19h 15m
Deal found 8/15![United Airlines logo]()
$724
This Delta deal was found by Cheapflights users on 8/14. 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.
Fri 2/127:10 pm -
1 stop20h 50m
Fri 2/265:00 am -
1 stop14h 05m
Deal found 8/14![Delta logo]()
$759
This United Airlines deal was found by Cheapflights users on 8/14. 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.
Tue 11/37:22 am -
1 stop20h 43m
Wed 11/255:00 am -
1 stop15h 00m
Deal found 8/14![United Airlines logo]()
$724
This Delta deal was found by Cheapflights users on 8/17. 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.
Wed 10/2811:22 am -
2 stops18h 13m
Thu 11/55:00 am -
1 stop14h 10m
Deal found 8/17![Delta logo]()
$773
This British Airways deal was found by Cheapflights users on 8/14. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/319:40 pm -
1 stop36h 25m
Fri 1/85:30 pm -
1 stop26h 35m
Deal found 8/14![British Airways logo]()
$950
This United Airlines deal was found by Cheapflights users on 8/15. 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.
Tue 11/109:52 pm -
2 stops27h 03m
Wed 11/185:00 am -
1 stop15h 00m
Deal found 8/15![United Airlines logo]()
$727
This Delta deal was found by Cheapflights users on 8/14. 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.
Fri 1/157:10 pm -
1 stop14h 00m
Thu 1/215:30 am -
1 stop17h 20m
Deal found 8/14![Delta logo]()
$782
This Mytrip deal was found by Cheapflights users on 8/17. 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.
Mon 9/2112:00 pm -
3 stops30h 10m
Mon 9/282:20 pm -
3 stops29h 15m
Deal found 8/17![Multiple Airlines logo]()
$1,013
This United Airlines deal was found by Cheapflights users on 8/13. 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 1/111:35 pm -
2 stops15h 05m
Thu 1/145:00 am -
1 stop19h 15m
Deal found 8/13![United Airlines logo]()
$770
This Delta deal was found by Cheapflights users on 8/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/136:00 am -
2 stops20h 00m
Tue 11/175:00 am -
2 stops24h 13m
Deal found 8/16![Delta logo]()
$790
This KLM deal was found by Cheapflights users on 8/15. 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.
Thu 11/265:30 pm -
2 stops15h 55m
Mon 11/305:00 am -
2 stops17h 35m
Deal found 8/15![KLM logo]()
$1,164
This British Airways deal was found by Cheapflights users on 8/14. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/214:18 pm -
2 stops20h 17m
Tue 10/67:35 pm -
2 stops27h 01m
Deal found 8/14![British Airways logo]()
$1,091
This Delta deal was found by Cheapflights users on 8/14. 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 9/235:26 pm -
2 stops19h 19m
Wed 9/309:50 am -
2 stops18h 49m
Deal found 8/14![Delta logo]()
$811
This British Airways deal was found by Cheapflights users on 8/14. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/278:03 pm -
2 stops61h 22m
Thu 1/75:10 pm -
2 stops36h 05m
Deal found 8/14![British Airways logo]()
$1,097
This United Airlines deal was found by Cheapflights users on 8/13. 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 10/1610:00 am -
1 stop15h 10m
Tue 10/2011:15 am -
2 stops32h 04m
Deal found 8/13![United Airlines logo]()
$864
This Delta deal was found by Cheapflights users on 8/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/213:09 pm -
2 stops21h 36m
Wed 10/285:00 am -
2 stops23h 03m
Deal found 8/15![Delta logo]()
$839
This KLM deal was found by Cheapflights users on 8/15. 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.
Thu 11/265:30 pm -
2 stops15h 55m
Sun 11/295:00 am -
2 stops17h 35m
Deal found 8/15![KLM logo]()
$1,355
This British Airways deal was found by Cheapflights users on 8/14. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/309:00 am -
2 stops44h 15m
Fri 1/85:30 pm -
1 stop26h 35m
Deal found 8/14![British Airways logo]()
$1,138
This United Airlines deal was found by Cheapflights users on 8/15. 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.
Fri 10/1610:00 am -
1 stop15h 10m
Wed 10/216:00 am -
1 stop17h 50m
Deal found 8/15![United Airlines logo]()
$866
Last-minute flights from Houston to PortugalDiscover last-minute flight deals from Houston to Portugal. Data last updated August 18, 2026 and is based on user searches.
Discover last-minute flight deals from Houston to Portugal. Data last updated August 18, 2026 and is based on user searches.
This Gotogate deal was found by Cheapflights users on 8/15. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/249:15 pm -
1 stop30h 30m
Tue 9/84:50 pm -
1 stop32h 30m
Deal found 8/15![Turkish Airlines logo]()
$832
This Gotogate deal was found by Cheapflights users on 8/17. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/319:15 pm -
1 stop36h 25m
Tue 9/154:50 pm -
1 stop32h 30m
Deal found 8/17![Turkish Airlines logo]()
$823
This Flysmarter deal was found by Cheapflights users on 8/14. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/213:55 pm -
1 stop17h 00m
Mon 10/53:35 pm -
1 stop27h 45m
Deal found 8/14![Multiple Airlines logo]()
$781
This Delta deal was found by Cheapflights users on 8/14. 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.
Mon 9/213:55 pm -
1 stop13h 20m
Mon 10/511:55 am -
1 stop31h 25m
Deal found 8/14![Delta logo]()
$786
This Finnair deal was found by Cheapflights users on 8/14. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/212:08 pm -
2 stops19h 42m
Mon 10/54:35 pm -
2 stops31h 37m
Deal found 8/14![Finnair logo]()
$799
This Delta deal was found by Cheapflights users on 8/14. 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.
Tue 9/223:55 pm -
1 stop19h 55m
Tue 9/295:00 am -
1 stop14h 20m
Deal found 8/14![Delta logo]()
$785
This Delta deal was found by Cheapflights users on 8/13. 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 9/223:20 pm -
2 stops17h 35m
Wed 9/3011:55 am -
2 stops17h 59m
Deal found 8/13![Delta logo]()
$800
This Delta deal was found by Cheapflights users on 8/14. 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 9/235:26 pm -
2 stops19h 19m
Wed 9/309:50 am -
2 stops18h 49m
Deal found 8/14![Delta logo]()
$811
This Gotogate deal was found by Cheapflights users on 8/15. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2910:00 am -
1 stop17h 20m
Tue 10/66:45 am -
1 stop36h 50m
Deal found 8/15![Multiple Airlines logo]()
$779
This United Airlines deal was found by Cheapflights users on 8/15. 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.
Tue 9/2912:06 pm -
2 stops15h 14m
Tue 10/66:45 am -
2 stops19h 32m
Deal found 8/15![United Airlines logo]()
$798
This Delta deal was found by Cheapflights users on 8/17. 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 9/296:00 am -
2 stops20h 50m
Tue 10/65:00 am -
2 stops24h 03m
Deal found 8/17![Delta logo]()
$800
This KLM deal was found by Cheapflights users on 8/15. 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 9/303:55 pm -
1 stop17h 30m
Thu 11/265:00 am -
1 stop14h 10m
Deal found 8/15![KLM logo]()
$818
One-way flights from Houston to PortugalSearch for one-way flight options from Houston to Portugal. Find affordable one-way fares based on user searches. Data last updated August 18, 2026.
Search for one-way flight options from Houston to Portugal. Find affordable one-way fares based on user searches. Data last updated August 18, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/14. 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.
Tue 10/206:05 am -
3 stops31h 50m
Deal found 8/14![Multiple Airlines logo]()
$284
This Kiwi.com deal was found by Cheapflights users on 8/13. 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 10/176:35 pm -
2 stops56h 35m
Deal found 8/13![Multiple Airlines logo]()
$288
This Kiwi.com deal was found by Cheapflights users on 8/14. 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.
Wed 10/219:12 pm -
3 stops39h 23m
Deal found 8/14![Multiple Airlines logo]()
$317
This Kiwi.com deal was found by Cheapflights users on 8/13. 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 9/289:04 pm -
3 stops36h 36m
Deal found 8/13![Multiple Airlines logo]()
$330
This Kiwi.com deal was found by Cheapflights users on 8/13. 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 9/242:18 pm -
3 stops42h 07m
Deal found 8/13![Multiple Airlines logo]()
$335
This Kiwi.com deal was found by Cheapflights users on 8/13. 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 9/256:25 am -
3 stops47h 35m
Deal found 8/13![Multiple Airlines logo]()
$336
This Kiwi.com deal was found by Cheapflights users on 8/13. 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 9/268:25 pm -
3 stops58h 15m
Deal found 8/13![Multiple Airlines logo]()
$338
This Kiwi.com deal was found by Cheapflights users on 8/14. 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.
Thu 10/226:05 am -
3 stops30h 30m
Deal found 8/14![Multiple Airlines logo]()
$347
This Air Canada deal was found by Cheapflights users on 8/17. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/266:19 pm -
2 stops58h 56m
Deal found 8/17![Air Canada logo]()
$347
This Cheapflightsfares deal was found by Cheapflights users on 8/13. 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.
Wed 12/93:50 pm -
1 stop19h 55m
Deal found 8/13![British Airways logo]()
$349
This Expedia deal was found by Cheapflights users on 8/15. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/33:50 pm -
1 stop18h 35m
Deal found 8/15![British Airways logo]()
$355
This Expedia deal was found by Cheapflights users on 8/14. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/179:57 am -
2 stops21h 33m
Deal found 8/14![Iberia logo]()
$357
Find flight deals from Houston to Portugal
Keep the following information in mind while searching for Houston to Portugal flight deals. Data was last updated August 18, 2026.
Round-trip from | $701 (Expedia) |
|---|---|
One-way from | $284 (Kiwi.com) |
Popular in | June |
Cheapest in | April |
Average price | $1,121 |
Cheapflights Fare Finder
Customize your flight search to find flights from Houston 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 August 18, 2026.
Use the filters below to find and compare flights from Houston to Portugal that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
HoustonPorto
IAH Houston George Bush Intcntl - OPO Porto
IAHOPO
Houston George Bush Intcntl
Mon 12/7
10:00 am-9:30 am
1 stop17h 30m
Porto
Fri 12/11
6:15 am-4:20 pm
1 stop16h 05m
$709
HoustonPorto
IAH Houston George Bush Intcntl - OPO Porto
IAHOPO
Houston George Bush Intcntl
Mon 12/7
11:00 am-9:30 am
1 stop16h 30m
Porto
Fri 12/11
6:00 am-6:44 pm
2 stops18h 44m
$717
HoustonLisbon
IAH Houston George Bush Intcntl - LIS Lisbon Humberto Delgado
IAHLIS
Houston George Bush Intcntl
Mon 11/2
11:50 am-10:40 am
1 stop16h 50m
Lisbon Humberto Delgado
Tue 11/24
5:00 am-2:00 pm
1 stop15h 00m
$723
HoustonLisbon
IAH Houston George Bush Intcntl - LIS Lisbon Humberto Delgado
IAHLIS
Houston George Bush Intcntl
Sun 1/17
6:00 am-8:10 am
1 stop20h 10m
Lisbon Humberto Delgado
Fri 1/29
5:00 am-6:15 pm
1 stop19h 15m
$724
HoustonLisbon
IAH Houston George Bush Intcntl - LIS Lisbon Humberto Delgado
IAHLIS
Houston George Bush Intcntl
Tue 11/3
7:22 am-10:05 am
1 stop20h 43m
Lisbon Humberto Delgado
Wed 11/25
5:00 am-2:00 pm
1 stop15h 00m
$724
HoustonPorto
IAH Houston George Bush Intcntl - OPO Porto
IAHOPO
Houston George Bush Intcntl
Mon 11/23
1:54 pm-9:30 am
1 stop13h 36m
Porto
Wed 12/2
4:10 pm-2:00 pm
1 stop27h 50m
$727
HoustonLisbon
IAH Houston George Bush Intcntl - LIS Lisbon Humberto Delgado
IAHLIS
Houston George Bush Intcntl
Tue 11/10
9:52 pm-6:55 am
2 stops27h 03m
Lisbon Humberto Delgado
Wed 11/18
5:00 am-2:00 pm
1 stop15h 00m
$727
HoustonLisbon
HOU Houston Hobby - LIS Lisbon Humberto Delgado
HOULIS
Houston Hobby
Tue 11/10
6:00 am-8:00 am
2 stops20h 00m
Lisbon Humberto Delgado
Wed 11/18
5:00 am-11:13 pm
2 stops24h 13m
$740
HoustonLisbon
HOU Houston Hobby - LIS Lisbon Humberto Delgado
HOULIS
Houston Hobby
Wed 11/11
5:30 pm-3:10 pm
2 stops15h 40m
Lisbon Humberto Delgado
Thu 11/19
5:00 am-11:13 pm
2 stops24h 13m
$740
HoustonPorto
IAH Houston George Bush Intcntl - OPO Porto
IAHOPO
Houston George Bush Intcntl
Fri 2/12
7:10 pm-10:00 pm
1 stop20h 50m
Porto
Fri 2/26
5:00 am-1:05 pm
1 stop14h 05m
$759
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Houston to Portugal
Have a flexible travel schedule? Discover the best time to fly to Portugal from Houston with our price prediction graph.
IAH-FNC
IAH-LIS
HOU-LIS
IAH-OPO
HOU-FNC
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 Houston to Portugal
HO1-PT0
IAH-FNC
IAH-LIS
HOU-LIS
IAH-OPO
What is the cheapest month to book a flight from Houston to Portugal?
Currently, January is the cheapest month in which you can book a flight from Houston to Portugal (average of $682). Flying from Houston to Portugal in June is currently the most expensive (average of $1,349). 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 far ahead should I book a flight from Houston to Portugal?
The best time to book flights from Houston to Portugal is 79 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.
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 August 18, 2026.
Get a feel of what it's like to fly with KLM,Delta, andAir France from Houston to Portugal by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
7.8
Comfort
7.7
Entertainment
7.2
Boarding
7.8
Food
7.3
Crew
8.4
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Overall
7.8
Comfort
7.7
Entertainment
7.2
Boarding
7.8
Food
7.3
Crew
8.4
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Overall
7.8
Comfort
7.7
Entertainment
7.2
Boarding
7.8
Food
7.3
Crew
8.4
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Overall
7.8
Comfort
7.7
Entertainment
7.2
Boarding
7.8
Food
7.3
Crew
8.4
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Overall
7.8
Comfort
7.7
Entertainment
7.2
Boarding
7.8
Food
7.3
Crew
8.4
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Overall
7.8
Comfort
7.7
Entertainment
7.2
Boarding
7.8
Food
7.3
Crew
8.4
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Related info for your journey
Find useful and relevant information for your journey from Houston to Portugal. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Houston 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 Houston to Portugal by cabin class
Find flights from Houston to Portugal, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Houston and Portugal flights
Browse other Houston and Portugal flight options. Last updated on August 18, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Houston to Portugal flights
Consider these flights traveling from Houston to Portugal.
Fly to Portugal regions
Consider these flights traveling to Portugal regions.
Top 8 airlines flying from Houston to Portugal
Discover the top 8 airlines that operate flights from Houston 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 August 18, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$476 | Average$917 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$484 | Average$912 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$512 | Average$772 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$552 | Average$734 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$559 | Average$829 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$575 | Average$1,120 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$704 | Average$893 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$719 | Average$1,254 | FlexibilityNo cancel fee | On-time76% |