$308+ Cheap flights from Houston to Portugal
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/26. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — LIS
Oct 21 — Oct 281
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 September 21, 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 September 21, 2026.
This United Airlines deal was found by Cheapflights users on 9/19. 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.
Mon 11/99:52 pm -
2 stops29h 38m
Wed 11/2512:35 pm -
1 stop25h 49m
Deal found 9/19![United Airlines logo]()
$567
This Justfly.com deal was found by Cheapflights users on 9/17. 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.
Tue 11/105:00 pm -
2 stops17h 00m
Tue 11/178:20 am -
2 stops19h 34m
Deal found 9/17![Iberia logo]()
$568
This Expedia deal was found by Cheapflights users on 9/18. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/27:16 am -
2 stops42h 24m
Wed 12/98:40 pm -
2 stops17h 47m
Deal found 9/18![Iberia logo]()
$572
This American Airlines deal was found by Cheapflights users on 9/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/911:15 am -
2 stops14h 25m
Wed 11/258:20 am -
2 stops17h 52m
Deal found 9/19![American Airlines logo]()
$573
This United Airlines deal was found by Cheapflights users on 9/17. 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 11/1610:55 am -
1 stop16h 35m
Thu 12/312:35 pm -
1 stop17h 09m
Deal found 9/17![United Airlines logo]()
$575
This Delta deal was found by Cheapflights users on 9/17. 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 11/1810:27 am -
2 stops15h 48m
Thu 12/310:15 am -
2 stops19h 17m
Deal found 9/17![Delta logo]()
$580
This Expedia deal was found by Cheapflights users on 9/17. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1111:35 am -
2 stops18h 10m
Wed 11/1812:25 pm -
2 stops27h 03m
Deal found 9/17![Iberia logo]()
$581
This Iberia deal was found by Cheapflights users on 9/17. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2811:51 am -
2 stops14h 49m
Thu 11/58:20 am -
2 stops19h 34m
Deal found 9/17![Iberia logo]()
$581
This Air France deal was found by Cheapflights users on 9/19. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2811:22 am -
2 stops14h 53m
Thu 11/54:10 pm -
1 stop26h 55m
Deal found 9/19![Multiple Airlines logo]()
$584
This British Airways deal was found by Cheapflights users on 9/18. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1111:35 am -
2 stops18h 10m
Wed 11/188:40 pm -
2 stops26h 00m
Deal found 9/18![Multiple Airlines logo]()
$587
This British Airways deal was found by Cheapflights users on 9/17. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1112:46 pm -
2 stops25h 14m
Wed 11/188:40 pm -
2 stops19h 16m
Deal found 9/17![Multiple Airlines logo]()
$587
This Delta deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/286:09 am -
2 stops20h 06m
Thu 11/55:00 am -
2 stops24h 03m
Deal found 9/21![Delta logo]()
$594
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 September 21, 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 September 21, 2026.
This Delta deal was found by Cheapflights users on 9/17. 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 11/1810:27 am -
2 stops15h 48m
Thu 12/310:15 am -
2 stops19h 17m
Deal found 9/17![Delta logo]()
$580
This United Airlines deal was found by Cheapflights users on 9/17. 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 11/171:40 pm -
2 stops13h 50m
Thu 12/312:35 pm -
1 stop13h 48m
Deal found 9/17![United Airlines logo]()
$580
This KLM deal was found by Cheapflights users on 9/18. 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 12/211:37 am -
2 stops14h 38m
Wed 12/95:55 am -
1 stop16h 55m
Deal found 9/18![Multiple Airlines logo]()
$585
This KLM deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure 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 11/55:55 am -
1 stop16h 55m
Deal found 9/21![KLM logo]()
$594
This Finnair deal was found by Cheapflights users on 9/16. 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.
Tue 11/242:01 pm -
2 stops19h 24m
Sun 11/294:10 pm -
2 stops33h 13m
Deal found 9/16![Finnair logo]()
$759
This British Airways deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/193:30 pm -
1 stop21h 05m
Mon 11/212:30 pm -
1 stop31h 35m
Deal found 9/21![British Airways logo]()
$781
This KAYAK deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/305:35 pm -
1 stop25h 05m
Sat 11/76:00 am -
1 stop18h 15m
Deal found 9/21![Lufthansa logo]()
$864
This Virgin Atlantic deal was found by Cheapflights users on 9/16. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/110:38 am -
2 stops16h 22m
Wed 3/1011:15 am -
2 stops16h 28m
Deal found 9/16![Virgin Atlantic logo]()
$866
This Turkish Airlines deal was found by Cheapflights users on 9/16. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/2510:00 pm -
1 stop36h 10m
Fri 10/3011:35 am -
1 stop31h 35m
Deal found 9/16![Turkish Airlines logo]()
$1,132
This Delta deal was found by Cheapflights users on 9/20. 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 11/116:00 am -
2 stops20h 15m
Wed 11/185:00 am -
2 stops17h 29m
Deal found 9/20![Delta logo]()
$594
This KLM deal was found by Cheapflights users on 9/18. 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 12/210:41 am -
2 stops15h 34m
Wed 12/95:00 am -
2 stops17h 30m
Deal found 9/18![KLM logo]()
$595
This United Airlines deal was found by Cheapflights users on 9/17. 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 11/184:10 pm -
1 stop13h 35m
Thu 12/312:35 pm -
1 stop15h 20m
Deal found 9/17![United Airlines logo]()
$616
This KLM deal was found by Cheapflights users on 9/17. 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.
Wed 11/411:22 am -
2 stops14h 53m
Sun 11/85:55 am -
1 stop16h 55m
Deal found 9/17![Multiple Airlines logo]()
$635
This Delta deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/286:09 am -
2 stops20h 06m
Thu 11/55:00 am -
2 stops24h 03m
Deal found 9/21![Delta logo]()
$594
This KLM deal was found by Cheapflights users on 9/17. 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 11/175:24 pm -
2 stops16h 01m
Thu 12/35:00 am -
2 stops17h 30m
Deal found 9/17![KLM logo]()
$621
This Delta deal was found by Cheapflights users on 9/19. 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.
Mon 11/96:00 am -
2 stops22h 35m
Wed 11/255:00 am -
2 stops24h 21m
Deal found 9/19![Delta logo]()
$608
This KLM deal was found by Cheapflights users on 9/19. 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.
Mon 10/193:55 pm -
1 stop17h 30m
Mon 10/264:10 pm -
1 stop26h 55m
Deal found 9/19![KLM logo]()
$650
This United Airlines deal was found by Cheapflights users on 9/18. 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 2/227:30 am -
2 stops20h 00m
Fri 2/266:00 am -
1 stop18h 15m
Deal found 9/18![United Airlines logo]()
$716
This Delta deal was found by Cheapflights users on 9/17. 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 11/47:10 pm -
1 stop20h 50m
Sun 11/85:55 am -
1 stop16h 55m
Deal found 9/17![Delta logo]()
$645
This KLM deal was found by Cheapflights users on 9/17. 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.
Wed 11/1810:27 am -
2 stops15h 48m
Tue 12/111:15 am -
2 stops18h 17m
Deal found 9/17![KLM logo]()
$651
This Virgin Atlantic deal was found by Cheapflights users on 9/19. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/306:09 am -
2 stops21h 51m
Mon 11/1611:15 am -
2 stops18h 06m
Deal found 9/19![Virgin Atlantic logo]()
$890
This KLM deal was found by Cheapflights users on 9/17. 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.
Wed 11/1810:27 am -
2 stops15h 48m
Wed 12/211:15 am -
2 stops18h 17m
Deal found 9/17![KLM logo]()
$651
This United Airlines deal was found by Cheapflights users on 9/19. 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 11/208:40 pm -
2 stops30h 00m
Sat 12/510:15 am -
1 stop16h 08m
Deal found 9/19![United Airlines logo]()
$789
This Delta deal was found by Cheapflights users on 9/17. 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.
Thu 2/411:30 am -
2 stops17h 05m
Thu 2/115:55 am -
1 stop16h 55m
Deal found 9/17![Delta logo]()
$654
This British Airways deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/195:06 pm -
2 stops19h 29m
Mon 11/212:30 pm -
2 stops55h 07m
Deal found 9/21![British Airways logo]()
$1,052
This Delta deal was found by Cheapflights users on 9/18. 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 11/26:09 am -
2 stops22h 26m
Mon 11/911:15 am -
2 stops18h 06m
Deal found 9/18![Delta logo]()
$659
This Finnair deal was found by Cheapflights users on 9/16. 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.
Thu 10/12:08 pm -
2 stops19h 42m
Mon 10/56:35 am -
2 stops22h 59m
Deal found 9/16![Finnair logo]()
$1,065
This KLM deal was found by Cheapflights users on 9/20. 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 11/45:02 pm -
2 stops16h 23m
Sun 11/811:15 am -
2 stops18h 40m
Deal found 9/20![KLM logo]()
$670
This Icelandair deal was found by Cheapflights users on 9/19. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/911:05 am -
3 stops19h 45m
Sun 12/202:00 pm -
2 stops40h 25m
Deal found 9/19![Multiple Airlines logo]()
$1,010
This Delta deal was found by Cheapflights users on 9/17. 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.
Mon 11/1610:27 am -
2 stops18h 08m
Tue 12/15:00 am -
2 stops24h 32m
Deal found 9/17![Delta logo]()
$665
Last-minute flights from Houston to PortugalDiscover last-minute flight deals from Houston to Portugal. Data last updated September 21, 2026 and is based on user searches.
Discover last-minute flight deals from Houston to Portugal. Data last updated September 21, 2026 and is based on user searches.
This KLM deal was found by Cheapflights users on 9/17. 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.
Thu 10/153:25 pm -
1 stop21h 20m
Thu 10/226:50 pm -
1 stop24h 50m
Deal found 9/17![Multiple Airlines logo]()
$753
This FlightHub deal was found by Cheapflights users on 9/17. 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.
Fri 10/1610:00 am -
1 stop15h 10m
Wed 10/2111:20 am -
1 stop14h 32m
Deal found 9/17![Multiple Airlines logo]()
$672
This Air Canada deal was found by Cheapflights users on 9/19. 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 Air Canada 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 10/2111:20 am -
1 stop14h 32m
Deal found 9/19![Air Canada logo]()
$673
This United Airlines deal was found by Cheapflights users on 9/17. 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.
Fri 10/166:15 am -
2 stops18h 55m
Wed 10/2111:20 am -
1 stop14h 32m
Deal found 9/17![United Airlines logo]()
$678
This KLM deal was found by Cheapflights users on 9/19. 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.
Mon 10/193:55 pm -
1 stop17h 30m
Mon 10/264:10 pm -
1 stop26h 55m
Deal found 9/19![KLM logo]()
$650
This Mytrip deal was found by Cheapflights users on 9/20. 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.
Wed 10/2110:00 am -
2 stops26h 45m
Tue 10/277:00 pm -
2 stops25h 00m
Deal found 9/20![Multiple Airlines logo]()
$752
This Iberia deal was found by Cheapflights users on 9/17. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2811:51 am -
2 stops14h 49m
Thu 11/58:20 am -
2 stops19h 34m
Deal found 9/17![Iberia logo]()
$581
This Air France deal was found by Cheapflights users on 9/19. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2811:22 am -
2 stops14h 53m
Thu 11/54:10 pm -
1 stop26h 55m
Deal found 9/19![Multiple Airlines logo]()
$584
This Delta deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/286:09 am -
2 stops20h 06m
Thu 11/55:00 am -
2 stops24h 03m
Deal found 9/21![Delta logo]()
$594
This KLM deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure 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 11/55:55 am -
1 stop16h 55m
Deal found 9/21![KLM logo]()
$594
This Air France deal was found by Cheapflights users on 9/17. 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 France 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 11/55:55 am -
1 stop16h 55m
Deal found 9/17![Air France logo]()
$595
This KLM deal was found by Cheapflights users on 9/17. 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.
Thu 10/294:25 pm -
1 stop19h 45m
Fri 11/136:00 pm -
1 stop25h 05m
Deal found 9/17![KLM logo]()
$724
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 September 21, 2026.
Search for one-way flight options from Houston to Portugal. Find affordable one-way fares based on user searches. Data last updated September 21, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/268:35 pm -
2 stops46h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![Multiple Airlines logo]()
$308
This Kiwi.com deal was found by Cheapflights users on 9/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/268:35 pm -
2 stops36h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![Multiple Airlines logo]()
$316
This Kiwi.com deal was found by Cheapflights users on 9/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/248:35 pm -
2 stops55h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![Multiple Airlines logo]()
$328
This Kiwi.com deal was found by Cheapflights users on 9/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/2512:21 pm -
3 stops51h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![Multiple Airlines logo]()
$338
This Kiwi.com deal was found by Cheapflights users on 9/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/248:35 pm -
2 stops57h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![Multiple Airlines logo]()
$341
This Orbitz deal was found by Cheapflights users on 9/19. 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.
Tue 12/2911:55 am -
2 stops41h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![Air Canada logo]()
$344
This Kiwi.com deal was found by Cheapflights users on 9/18. 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.
Tue 11/36:40 am -
3 stops31h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/18![Multiple Airlines logo]()
$347
This Cheapflightsfares deal was found by Cheapflights users on 9/17. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/293:50 pm -
1 stop14h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![British Airways logo]()
$349
This Kiwi.com deal was found by Cheapflights users on 9/18. 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.
Mon 11/910:12 am -
3 stops25h 08m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/18![Multiple Airlines logo]()
$353
This Kiwi.com deal was found by Cheapflights users on 9/16. 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.
Sat 12/125:10 am -
3 stops59h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Multiple Airlines logo]()
$357
This Expedia deal was found by Cheapflights users on 9/17. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/279:00 am -
2 stops16h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![Iberia logo]()
$358
This Expedia deal was found by Cheapflights users on 9/17. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2711:35 am -
2 stops14h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![Iberia logo]()
$358
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 September 21, 2026.
Round-trip from | $567 (United Airlines) |
|---|---|
One-way from | $308 (Kiwi.com) |
Popular in | June |
Cheapest in | January |
Average price | $1,031 |
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 7,457,451 searches. Data last updated September 21, 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
Tue 12/29
3:05 pm-10:30 am
1 stop13h 25m
Porto
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$338
HoustonPorto
IAH Houston George Bush Intcntl - OPO Porto
IAHOPO
Houston George Bush Intcntl
Fri 11/27
10:26 am-11:30 pm
3 stops31h 04m
Porto
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$370
HoustonLisbon
IAH Houston George Bush Intcntl - LIS Lisbon Humberto Delgado
IAHLIS
Houston George Bush Intcntl
Mon 12/28
4:20 pm-8:10 am
1 stop33h 50m
Lisbon Humberto Delgado
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$372
HoustonLisbon
IAH Houston George Bush Intcntl - LIS Lisbon Humberto Delgado
IAHLIS
Houston George Bush Intcntl
Mon 12/28
6:46 pm-8:00 am
2 stops31h 14m
Lisbon Humberto Delgado
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$377
HoustonLisbon
HOU Houston Hobby - LIS Lisbon Humberto Delgado
HOULIS
Houston Hobby
Mon 12/28
6:50 pm-9:00 am
2 stops32h 10m
Lisbon Humberto Delgado
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$378
HoustonFunchal
IAH Houston George Bush Intcntl - FNC Funchal Madeira
IAHFNC
Houston George Bush Intcntl
Thu 2/4
3:50 pm-3:35 pm
3 stops41h 45m
Funchal Madeira
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
$395
HoustonLisbon
HOU Houston Hobby - LIS Lisbon Humberto Delgado
HOULIS
Houston Hobby
Mon 12/28
10:38 am-9:00 am
2 stops16h 22m
Lisbon Humberto Delgado
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$403
HoustonPorto
IAH Houston George Bush Intcntl - OPO Porto
IAHOPO
Houston George Bush Intcntl
Wed 12/23
1:35 pm-9:30 am
2 stops37h 55m
Porto
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$408
HoustonFunchal
IAH Houston George Bush Intcntl - FNC Funchal Madeira
IAHFNC
Houston George Bush Intcntl
Thu 2/4
1:15 pm-5:10 pm
2 stops21h 55m
Funchal Madeira
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
$419
HoustonPorto
IAH Houston George Bush Intcntl - OPO Porto
IAHOPO
Houston George Bush Intcntl
Tue 10/20
2:50 pm-11:00 pm
2 stops26h 10m
Porto
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$441
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-LIS
IAH-OPO
HOU-LIS
IAH-FNC
HOU-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 Houston to Portugal
HO1-PT0
IAH-LIS
IAH-OPO
HOU-LIS
IAH-FNC
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 78 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 September 21, 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.
Crew
8.4
Boarding
7.8
Overall
7.8
Comfort
7.7
Entertainment
7.2
Food
7.3
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Crew
8.4
Boarding
7.8
Overall
7.8
Comfort
7.7
Entertainment
7.2
Food
7.3
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Crew
8.4
Boarding
7.8
Overall
7.8
Comfort
7.7
Entertainment
7.2
Food
7.3
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Crew
8.4
Boarding
7.8
Overall
7.8
Comfort
7.7
Entertainment
7.2
Food
7.3
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Crew
8.4
Boarding
7.8
Overall
7.8
Comfort
7.7
Entertainment
7.2
Food
7.3
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Crew
8.4
Boarding
7.8
Overall
7.8
Comfort
7.7
Entertainment
7.2
Food
7.3
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 September 21, 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 7,457,451 searches. Data last updated September 21, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$476 | Average$953 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$484 | Average$891 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$512 | Average$820 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$529 | Average$1,232 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$552 | Average$720 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$559 | Average$844 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$575 | Average$1,083 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$704 | Average$893 | FlexibilityNo cancel fee | On-time67% |