$288+ 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 30 — Oct 71
Round-trip
1 adult, Economy
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Find cheap flights from Houston to Portugal with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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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 31, 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 31, 2026.
This flugladen.de deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1810:00 am -
1 stop17h 20m
Tue 11/311:20 am -
1 stop29h 33m
Deal found 8/30![Multiple Airlines logo]()
$700
This Expedia deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” 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 12/13:30 pm -
1 stop11h 50m
Thu 12/105:00 am -
1 stop15h 00m
Deal found 8/27![Multiple Airlines logo]()
$706
This United Airlines deal was found by Cheapflights users on 8/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/812:23 pm -
1 stop15h 07m
Fri 12/116:00 am -
1 stop18h 15m
Deal found 8/26![United Airlines logo]()
$708
This Gotogate deal was found by Cheapflights users on 8/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/912:00 pm -
2 stops16h 40m
Wed 11/255:00 am -
1 stop15h 00m
Deal found 8/26![Multiple Airlines logo]()
$710
This Gotogate deal was found by Cheapflights users on 8/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1011:50 am -
2 stops15h 30m
Tue 11/175:00 am -
1 stop15h 00m
Deal found 8/26![Multiple Airlines logo]()
$711
This Delta deal was found by Cheapflights users on 8/29. Clicking the “Pick Dates” 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 10/1810:58 am -
1 stop17h 27m
Mon 11/211:15 am -
1 stop31h 50m
Deal found 8/29![Delta logo]()
$712
This Expedia deal was found by Cheapflights users on 8/29. Clicking the “Pick Dates” 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 11/1811:50 am -
1 stop13h 05m
Fri 11/2711:20 am -
1 stop16h 19m
Deal found 8/29![Multiple Airlines logo]()
$717
This KLM deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” 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 8/30![KLM logo]()
$718
This Booking.com deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” 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.
Mon 11/1611:50 am -
1 stop16h 50m
Tue 11/2411:20 am -
1 stop29h 33m
Deal found 8/30![Multiple Airlines logo]()
$720
This Flighttix deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1812:00 pm -
2 stops15h 20m
Tue 11/312:50 pm -
1 stop14h 49m
Deal found 8/30![Air Canada logo]()
$722
This United Airlines deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” 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 12/78:25 am -
2 stops19h 05m
Fri 12/116:00 am -
2 stops20h 23m
Deal found 8/30![United Airlines logo]()
$722
This United Airlines deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” 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 11/1111:50 am -
1 stop13h 05m
Thu 11/195:00 am -
1 stop15h 00m
Deal found 8/28![United Airlines logo]()
$723
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 31, 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 31, 2026.
This United Airlines deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” 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 12/810:56 am -
1 stop16h 34m
Fri 12/116:00 am -
2 stops21h 55m
Deal found 8/27![United Airlines logo]()
$718
This United deal was found by Cheapflights users on 8/29. Clicking the “Pick Dates” 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.
Wed 11/256:00 am -
2 stops18h 55m
Thu 12/35:00 am -
1 stop15h 00m
Deal found 8/29![Multiple Airlines logo]()
$728
This Delta deal was found by Cheapflights users on 8/29. Clicking the “Pick Dates” 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 10/289:40 am -
2 stops19h 55m
Thu 11/55:00 am -
2 stops21h 02m
Deal found 8/29![Delta logo]()
$732
This Finnair deal was found by Cheapflights users on 8/29. Clicking the “Pick Dates” 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.
Sun 10/182:41 pm -
2 stops26h 44m
Tue 11/34:10 pm -
2 stops32h 01m
Deal found 8/29![Finnair logo]()
$735
This KLM deal was found by Cheapflights users on 8/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/105:24 pm -
2 stops16h 01m
Wed 11/1811:15 am -
2 stops18h 06m
Deal found 8/26![KLM logo]()
$789
This British Airways deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” 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.
Sat 12/55:27 pm -
2 stops40h 58m
Fri 12/115:30 pm -
2 stops36h 27m
Deal found 8/30![British Airways logo]()
$900
This Turkish Airlines deal was found by Cheapflights users on 8/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/99:00 pm -
1 stop30h 55m
Sat 11/1410:55 am -
1 stop38h 10m
Deal found 8/26![Turkish Airlines logo]()
$927
This KAYAK deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/236:44 pm -
2 stops37h 36m
Sat 11/281:15 pm -
2 stops54h 45m
Deal found 8/27![Lufthansa logo]()
$1,174
This Iberia deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” 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 stops40h 14m
Deal found 8/30![Iberia logo]()
$1,312
This United Airlines deal was found by Cheapflights users on 8/29. Clicking the “Pick Dates” 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 11/2511:50 am -
1 stop13h 05m
Thu 12/35:00 am -
1 stop15h 00m
Deal found 8/29![United Airlines logo]()
$723
This Delta deal was found by Cheapflights users on 8/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure 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 11/1811:30 am -
2 stops17h 51m
Deal found 8/26![Delta logo]()
$741
This Finnair deal was found by Cheapflights users on 8/29. Clicking the “Pick Dates” 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.
Fri 1/153:50 pm -
1 stop20h 05m
Thu 1/214:10 pm -
2 stops33h 08m
Deal found 8/29![Multiple Airlines logo]()
$786
This United Airlines deal was found by Cheapflights users on 8/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1111:50 am -
1 stop13h 05m
Thu 11/195:00 am -
1 stop15h 00m
Deal found 8/26![United Airlines logo]()
$723
This Delta deal was found by Cheapflights users on 8/29. Clicking the “Pick Dates” 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 10/186:09 am -
2 stops20h 41m
Tue 11/35:30 am -
2 stops23h 33m
Deal found 8/29![Delta logo]()
$748
This KLM deal was found by Cheapflights users on 8/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1110:27 am -
2 stops15h 48m
Mon 11/1611:15 am -
2 stops18h 06m
Deal found 8/26![KLM logo]()
$834
This United Airlines deal was found by Cheapflights users on 8/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/178:40 am -
2 stops17h 30m
Fri 1/295:00 am -
2 stops20h 33m
Deal found 8/26![United Airlines logo]()
$744
This KLM deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” 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 11/265:24 pm -
2 stops16h 01m
Sun 12/1311:15 am -
2 stops18h 17m
Deal found 8/31![KLM logo]()
$837
This United deal was found by Cheapflights users on 8/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2210:05 pm -
2 stops30h 35m
Sun 11/2912:20 pm -
1 stop31h 40m
Deal found 8/26![Multiple Airlines logo]()
$839
This Delta deal was found by Cheapflights users on 8/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure 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 stops24h 21m
Deal found 8/26![Delta logo]()
$784
This KLM deal was found by Cheapflights users on 8/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/105:24 pm -
2 stops16h 01m
Mon 11/1611:15 am -
2 stops18h 06m
Deal found 8/26![KLM logo]()
$839
This Delta deal was found by Cheapflights users on 8/29. Clicking the “Pick Dates” 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 10/186:37 pm -
2 stops18h 28m
Mon 11/25:00 am -
2 stops21h 02m
Deal found 8/29![Delta logo]()
$787
This United Airlines deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” 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 10/246:05 pm -
2 stops34h 25m
Sun 11/16:00 am -
2 stops39h 29m
Deal found 8/30![United Airlines logo]()
$798
This Delta deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” 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 21m
Deal found 8/27![Delta logo]()
$791
This United Airlines deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” 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 1/1511:55 am -
1 stop15h 25m
Thu 1/2111:20 am -
2 stops34h 15m
Deal found 8/28![United Airlines logo]()
$811
This Delta deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” 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 2/910:38 am -
2 stops22h 32m
Mon 2/155:00 am -
2 stops22h 43m
Deal found 8/30![Delta logo]()
$795
This United Airlines deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” 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.
Thu 11/267:30 am -
1 stop20h 00m
Sun 12/136:00 am -
1 stop18h 15m
Deal found 8/31![United Airlines logo]()
$816
This Icelandair deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” 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.
Sat 1/309:35 am -
2 stops21h 15m
Sun 2/142:00 pm -
3 stops52h 40m
Deal found 8/27![Multiple Airlines logo]()
$1,088
This Delta deal was found by Cheapflights users on 8/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/135:28 pm -
2 stops15h 57m
Tue 10/205:00 am -
2 stops24h 03m
Deal found 8/29![Delta logo]()
$807
This KAYAK deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/214:50 pm -
1 stop33h 15m
Mon 9/289:55 pm -
2 stops24h 45m
Deal found 8/30![Lufthansa logo]()
$1,433
This United Airlines deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” 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 1/308:18 pm -
1 stop29h 52m
Sun 2/145:00 am -
2 stops20h 00m
Deal found 8/27![United Airlines logo]()
$839
Last-minute flights from Houston to PortugalDiscover last-minute flight deals from Houston to Portugal. Data last updated August 31, 2026 and is based on user searches.
Discover last-minute flight deals from Houston to Portugal. Data last updated August 31, 2026 and is based on user searches.
This Turkish Airlines deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” 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.
Mon 9/149:15 pm -
1 stop20h 20m
Thu 9/245:55 am -
1 stop36h 50m
Deal found 8/31![Turkish Airlines logo]()
$879
This Mytrip deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” 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.
Sun 9/2710:00 am -
2 stops26h 15m
Tue 10/610:00 pm -
2 stops21h 35m
Deal found 8/28![Multiple Airlines logo]()
$849
This United Airlines deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” 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 9/2810:00 am -
1 stop15h 00m
Thu 10/86:00 am -
1 stop17h 50m
Deal found 8/31![United Airlines logo]()
$865
This Delta deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” 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 9/283:55 pm -
1 stop17h 30m
Tue 10/611:35 am -
1 stop31h 45m
Deal found 8/31![Delta logo]()
$867
This Delta deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” 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 9/283:55 pm -
1 stop17h 30m
Fri 10/95:55 am -
1 stop13h 45m
Deal found 8/31![Delta logo]()
$874
This Delta deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” 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 9/2812:21 pm -
2 stops16h 19m
Mon 10/511:25 am -
1 stop31h 55m
Deal found 8/31![Delta logo]()
$876
This United Airlines deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” 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 9/286:00 am -
2 stops19h 00m
Wed 10/76:00 am -
2 stops20h 47m
Deal found 8/31![United Airlines logo]()
$880
This Delta deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” 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 9/293:20 pm -
2 stops18h 05m
Tue 10/65:00 am -
1 stop14h 20m
Deal found 8/31![Delta logo]()
$872
This Delta deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” 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 9/293:20 pm -
2 stops18h 05m
Fri 10/95:55 am -
1 stop13h 45m
Deal found 8/31![Delta logo]()
$879
This Mytrip deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” 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 9/303:35 pm -
2 stops24h 40m
Wed 10/77:25 am -
2 stops18h 27m
Deal found 8/30![Multiple Airlines logo]()
$837
This Delta deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” 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 9/303:55 pm -
1 stop34h 35m
Wed 10/75:00 am -
1 stop14h 20m
Deal found 8/31![Delta logo]()
$869
This Delta deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” 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 9/303:55 pm -
1 stop34h 35m
Tue 10/65:00 am -
2 stops22h 17m
Deal found 8/31![Delta logo]()
$878
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 31, 2026.
Search for one-way flight options from Houston to Portugal. Find affordable one-way fares based on user searches. Data last updated August 31, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” 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 stops34h 25m
Deal found 8/27![Multiple Airlines logo]()
$288
This Kiwi.com deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” 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 10/189:12 pm -
3 stops41h 58m
Deal found 8/27![Multiple Airlines logo]()
$300
This Kiwi.com deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” 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 9/286:08 am -
3 stops34h 52m
Deal found 8/27![Multiple Airlines logo]()
$337
This Kiwi.com deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” 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 10/276:05 am -
3 stops35h 30m
Deal found 8/30![Multiple Airlines logo]()
$339
This Kiwi.com deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” 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 10/56:08 am -
3 stops34h 52m
Deal found 8/30![Multiple Airlines logo]()
$342
This Air Canada deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” 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.
Wed 12/911:50 am -
1 stop13h 05m
Deal found 8/27![Air Canada logo]()
$343
This Expedia deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” 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 12/133:30 pm -
1 stop11h 50m
Deal found 8/30![Air Canada logo]()
$348
This Kiwi.com deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” 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 10/216:05 am -
3 stops32h 50m
Deal found 8/30![Multiple Airlines logo]()
$348
This Kiwi.com deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” 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 10/246:05 am -
3 stops36h 10m
Deal found 8/30![Multiple Airlines logo]()
$351
This Kiwi.com deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” 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 10/246:05 am -
3 stops46h 25m
Deal found 8/30![Multiple Airlines logo]()
$355
This British Airways deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” 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 12/96:56 pm -
2 stops16h 49m
Deal found 8/31![British Airways logo]()
$358
This Kiwi.com deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” 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 12/58:10 pm -
2 stops56h 50m
Deal found 8/30![Multiple Airlines 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 August 31, 2026.
Round-trip from | $700 (flugladen.de) |
|---|---|
One-way from | $288 (Kiwi.com) |
Popular in | June |
Cheapest in | January |
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 7,457,451 searches. Data last updated August 31, 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 12/8
10:56 am-9:30 am
1 stop16h 34m
Porto
Fri 12/11
6:00 am-9:55 pm
2 stops21h 55m
$718
Quickest round-trip
HoustonLisbon
IAH Houston George Bush Intcntl - LIS Lisbon Humberto Delgado
IAHLIS
Houston George Bush Intcntl
Wed 11/25
11:50 am-6:55 am
1 stop13h 05m
Lisbon Humberto Delgado
Thu 12/3
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
Wed 11/11
11:50 am-6:55 am
1 stop13h 05m
Lisbon Humberto Delgado
Thu 11/19
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
Wed 11/25
6:00 am-6:55 am
2 stops18h 55m
Lisbon Humberto Delgado
Thu 12/3
5:00 am-2:00 pm
1 stop15h 00m
$728
HoustonPorto
IAH Houston George Bush Intcntl - OPO Porto
IAHOPO
Houston George Bush Intcntl
Wed 10/28
9:40 am-10:35 am
2 stops19h 55m
Porto
Thu 11/5
5:00 am-8:02 pm
2 stops21h 02m
$732
HoustonLisbon
IAH Houston George Bush Intcntl - LIS Lisbon Humberto Delgado
IAHLIS
Houston George Bush Intcntl
Sun 10/18
2:41 pm-11:25 pm
2 stops26h 44m
Lisbon Humberto Delgado
Tue 11/3
4:10 pm-6:11 pm
2 stops32h 01m
$735
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
11:30 am-11:21 pm
2 stops17h 51m
$741
HoustonLisbon
IAH Houston George Bush Intcntl - LIS Lisbon Humberto Delgado
IAHLIS
Houston George Bush Intcntl
Sun 1/17
8:40 am-8:10 am
2 stops17h 30m
Lisbon Humberto Delgado
Fri 1/29
5:00 am-7:33 pm
2 stops20h 33m
$744
HoustonLisbon
HOU Houston Hobby - LIS Lisbon Humberto Delgado
HOULIS
Houston Hobby
Sun 10/18
6:09 am-8:50 am
2 stops20h 41m
Lisbon Humberto Delgado
Tue 11/3
5:30 am-11:03 pm
2 stops23h 33m
$748
HoustonPorto
HOU Houston Hobby - OPO Porto
HOUOPO
Houston Hobby
Wed 11/11
6:00 am-8:15 am
2 stops20h 15m
Porto
Wed 11/18
5:00 am-11:21 pm
2 stops24h 21m
$784
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-OPO
IAH-LIS
HOU-OPO
IAH-FNC
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-OPO
IAH-LIS
HOU-OPO
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 $1,347). 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 31, 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.
Boarding
7.8
Comfort
7.7
Crew
8.4
Entertainment
7.2
Overall
7.8
Food
7.3
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Boarding
7.8
Comfort
7.7
Crew
8.4
Entertainment
7.2
Overall
7.8
Food
7.3
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Boarding
7.8
Comfort
7.7
Crew
8.4
Entertainment
7.2
Overall
7.8
Food
7.3
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Boarding
7.8
Comfort
7.7
Crew
8.4
Entertainment
7.2
Overall
7.8
Food
7.3
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Boarding
7.8
Comfort
7.7
Crew
8.4
Entertainment
7.2
Overall
7.8
Food
7.3
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Boarding
7.8
Comfort
7.7
Crew
8.4
Entertainment
7.2
Overall
7.8
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 August 31, 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 August 31, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$406 | Average$921 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$476 | Average$957 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$512 | Average$823 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$529 | Average$1,164 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$552 | Average$734 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$559 | Average$819 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$575 | Average$1,072 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$704 | Average$893 | FlexibilityNo cancel fee | On-time67% |