$325+ 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 10/1. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — LIS
Sep 24 — Oct 11
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 25, 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 25, 2026.
This Gotogate deal was found by Cheapflights users on 8/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/211:50 am -
1 stop16h 50m
Tue 11/175:00 am -
1 stop15h 00m
Deal found 8/23![Multiple Airlines logo]()
$699
This Expedia deal was found by Cheapflights users on 8/21. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1111:50 am -
1 stop13h 05m
Wed 11/185:00 am -
1 stop15h 00m
Deal found 8/21![Multiple Airlines logo]()
$701
This Expedia deal was found by Cheapflights users on 8/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure 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 8/23![Multiple Airlines logo]()
$702
This Gotogate deal was found by Cheapflights users on 8/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/3011:50 am -
1 stop16h 50m
Thu 12/175:00 am -
1 stop15h 00m
Deal found 8/22![Multiple Airlines logo]()
$704
This United deal was found by Cheapflights users on 8/20. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/19:56 am -
1 stop17h 34m
Tue 12/156:00 am -
1 stop18h 15m
Deal found 8/20![Multiple Airlines logo]()
$707
This Gotogate deal was found by Cheapflights users on 8/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1410:00 am -
1 stop17h 20m
Wed 11/115:00 am -
1 stop15h 00m
Deal found 8/23![Multiple Airlines logo]()
$708
This Gotogate deal was found by Cheapflights users on 8/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1810:00 am -
1 stop17h 20m
Tue 11/312:50 pm -
1 stop14h 49m
Deal found 8/23![Air Canada logo]()
$709
This Delta deal was found by Cheapflights users on 8/20. 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.
Mon 12/77:10 pm -
1 stop20h 50m
Fri 12/115:00 am -
1 stop14h 05m
Deal found 8/20![Delta logo]()
$709
This United Airlines deal was found by Cheapflights users on 8/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/16:20 am -
2 stops21h 10m
Tue 12/156:00 am -
1 stop18h 15m
Deal found 8/20![United Airlines logo]()
$712
This United deal was found by Cheapflights users on 8/20. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/77:30 am -
2 stops20h 00m
Fri 12/116:15 am -
1 stop16h 05m
Deal found 8/20![Multiple Airlines logo]()
$714
This United Airlines deal was found by Cheapflights users on 8/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/79:56 am -
1 stop17h 34m
Fri 12/116:00 am -
2 stops20h 23m
Deal found 8/20![United Airlines logo]()
$717
This Expedia deal was found by Cheapflights users on 8/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/911:50 am -
2 stops18h 55m
Wed 11/185:00 am -
2 stops19h 42m
Deal found 8/23![Multiple Airlines logo]()
$718
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 25, 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 25, 2026.
This KLM deal was found by Cheapflights users on 8/20. 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.
Mon 12/77:10 pm -
1 stop20h 50m
Fri 12/115:00 am -
1 stop14h 05m
Deal found 8/20![KLM logo]()
$709
This United Airlines deal was found by Cheapflights users on 8/21. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/711:55 am -
2 stops15h 35m
Fri 12/116:00 am -
1 stop18h 15m
Deal found 8/21![United Airlines logo]()
$712
This Delta deal was found by Cheapflights users on 8/20. 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.
Tue 11/106:00 am -
2 stops20h 00m
Wed 11/185:00 am -
2 stops24h 13m
Deal found 8/20![Delta logo]()
$740
This British Airways deal was found by Cheapflights users on 8/20. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/209:05 pm -
1 stop32h 25m
Tue 10/67:35 pm -
1 stop23h 50m
Deal found 8/20![British Airways logo]()
$868
This American Airlines deal was found by Cheapflights users on 8/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1911:35 am -
2 stops14h 05m
Mon 11/238:40 pm -
2 stops20h 24m
Deal found 8/22![American Airlines logo]()
$886
This Expedia deal was found by Cheapflights users on 8/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/52:08 pm -
2 stops19h 52m
Mon 10/128:40 pm -
2 stops33h 09m
Deal found 8/25![Iberia logo]()
$1,010
This Virgin Atlantic deal was found by Cheapflights users on 8/20. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/66:09 am -
2 stops20h 51m
Sun 11/811:15 am -
2 stops17h 48m
Deal found 8/20![Virgin Atlantic logo]()
$1,126
This Icelandair deal was found by Cheapflights users on 8/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/228:25 pm -
2 stops34h 25m
Sun 11/292:00 pm -
2 stops47h 50m
Deal found 8/23![Multiple Airlines logo]()
$1,179
This United Airlines deal was found by Cheapflights users on 8/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/810:56 am -
1 stop16h 34m
Fri 12/116:00 am -
2 stops21h 55m
Deal found 8/24![United Airlines logo]()
$718
This KLM deal was found by Cheapflights users on 8/20. 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.
Mon 12/75:30 pm -
2 stops15h 55m
Fri 12/115:00 am -
2 stops17h 35m
Deal found 8/20![KLM logo]()
$728
This Delta deal was found by Cheapflights users on 8/21. 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 1/276:00 am -
2 stops22h 35m
Sat 2/135:00 am -
2 stops22h 43m
Deal found 8/21![Delta logo]()
$778
This United Airlines deal was found by Cheapflights users on 8/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1111:50 am -
1 stop13h 05m
Thu 11/195:00 am -
1 stop19h 15m
Deal found 8/22![United Airlines logo]()
$723
This KLM deal was found by Cheapflights users on 8/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/288:10 pm -
1 stop20h 50m
Thu 11/55:00 am -
1 stop14h 10m
Deal found 8/24![KLM logo]()
$769
This Delta deal was found by Cheapflights users on 8/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/176:00 am -
2 stops22h 35m
Mon 2/225:00 am -
2 stops22h 43m
Deal found 8/24![Delta logo]()
$779
This United Airlines deal was found by Cheapflights users on 8/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/206:25 pm -
1 stop33h 05m
Tue 3/26:00 am -
1 stop18h 15m
Deal found 8/23![United Airlines logo]()
$724
This British Airways deal was found by Cheapflights users on 8/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure 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
Thu 1/75:10 pm -
1 stop32h 45m
Deal found 8/23![British Airways logo]()
$888
This Delta deal was found by Cheapflights users on 8/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2510:27 am -
2 stops18h 53m
Fri 11/2711:30 am -
2 stops17h 51m
Deal found 8/24![Delta logo]()
$784
This United Airlines deal was found by Cheapflights users on 8/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/2111:55 am -
1 stop13h 00m
Tue 3/25:00 am -
1 stop19h 15m
Deal found 8/23![United Airlines logo]()
$728
This Delta deal was found by Cheapflights users on 8/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/246:00 am -
2 stops21h 00m
Fri 11/2711:30 am -
2 stops17h 51m
Deal found 8/24![Delta logo]()
$784
This British Airways deal was found by Cheapflights users on 8/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure 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 8/25![British Airways logo]()
$951
This Ovago deal was found by Cheapflights users on 8/20. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/111:35 am -
2 stops14h 05m
Tue 12/1512:25 pm -
2 stops40h 51m
Deal found 8/20![Iberia logo]()
$1,055
This United Airlines deal was found by Cheapflights users on 8/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/2311:50 am -
1 stop16h 50m
Tue 12/15:00 am -
1 stop15h 00m
Deal found 8/24![United Airlines logo]()
$754
This British Airways deal was found by Cheapflights users on 8/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/13:50 pm -
1 stop18h 15m
Fri 1/85:30 pm -
1 stop32h 25m
Deal found 8/23![British Airways logo]()
$956
This Delta deal was found by Cheapflights users on 8/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/223:20 pm -
2 stops17h 35m
Tue 9/295:00 am -
1 stop14h 20m
Deal found 8/25![Delta logo]()
$791
This United Airlines deal was found by Cheapflights users on 8/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/2411:55 am -
2 stops14h 15m
Tue 12/15:00 am -
1 stop15h 00m
Deal found 8/24![United Airlines logo]()
$760
This KLM deal was found by Cheapflights users on 8/21. 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.
Fri 9/183:25 pm -
1 stop21h 15m
Mon 9/2110:20 am -
1 stop33h 00m
Deal found 8/21![KLM logo]()
$1,033
This British Airways deal was found by Cheapflights users on 8/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/13:50 pm -
1 stop18h 15m
Sat 1/94:55 pm -
1 stop27h 10m
Deal found 8/24![British Airways logo]()
$956
This Delta deal was found by Cheapflights users on 8/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/216:00 am -
2 stops23h 25m
Sun 2/285:00 am -
2 stops22h 43m
Deal found 8/25![Delta logo]()
$796
This United Airlines deal was found by Cheapflights users on 8/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2511:50 am -
1 stop13h 05m
Fri 11/2711:20 am -
1 stop16h 19m
Deal found 8/24![United Airlines logo]()
$782
This Delta deal was found by Cheapflights users on 8/20. 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.
Mon 10/123:32 pm -
2 stops17h 23m
Wed 10/285:00 am -
2 stops22h 02m
Deal found 8/20![Delta logo]()
$800
Last-minute flights from Houston to PortugalDiscover last-minute flight deals from Houston to Portugal. Data last updated August 25, 2026 and is based on user searches.
Discover last-minute flight deals from Houston to Portugal. Data last updated August 25, 2026 and is based on user searches.
This FlightHub deal was found by Cheapflights users on 8/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/139:15 pm -
1 stop36h 20m
Wed 9/2310:55 am -
1 stop38h 25m
Deal found 8/25![Turkish Airlines logo]()
$820
This Turkish Airlines deal was found by Cheapflights users on 8/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/159:15 pm -
1 stop30h 45m
Thu 9/244:40 pm -
1 stop26h 05m
Deal found 8/23![Turkish Airlines logo]()
$837
This Delta deal was found by Cheapflights users on 8/21. 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.
Thu 9/173:25 pm -
1 stop21h 20m
Thu 9/245:00 am -
1 stop14h 20m
Deal found 8/21![Delta logo]()
$850
This Delta deal was found by Cheapflights users on 8/20. 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.
Sun 9/203:55 pm -
1 stop19h 55m
Mon 10/511:55 am -
1 stop31h 25m
Deal found 8/20![Delta logo]()
$789
This Mytrip deal was found by Cheapflights users on 8/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2112:00 pm -
2 stops27h 00m
Mon 9/288:15 pm -
2 stops23h 20m
Deal found 8/24![Multiple Airlines logo]()
$854
This Delta deal was found by Cheapflights users on 8/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/223:55 pm -
1 stop13h 20m
Tue 9/295:00 am -
1 stop14h 20m
Deal found 8/25![Delta logo]()
$786
This Iberia deal was found by Cheapflights users on 8/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/259:05 pm -
1 stop14h 55m
Tue 10/612:30 pm -
2 stops17h 29m
Deal found 8/22![Multiple Airlines logo]()
$853
This Finnair deal was found by Cheapflights users on 8/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/294:57 pm -
2 stops24h 28m
Mon 10/54:35 pm -
2 stops32h 51m
Deal found 8/24![Finnair logo]()
$806
This Cheapflightsfares deal was found by Cheapflights users on 8/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/299:05 pm -
1 stop19h 55m
Mon 10/56:45 pm -
1 stop24h 40m
Deal found 8/24![British Airways logo]()
$818
This United Airlines deal was found by Cheapflights users on 8/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/3010:00 am -
1 stop15h 00m
Thu 11/266:00 am -
1 stop18h 15m
Deal found 8/20![United Airlines logo]()
$815
This Gotogate deal was found by Cheapflights users on 8/20. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/3010:00 am -
1 stop15h 00m
Thu 11/2612:35 pm -
1 stop31h 25m
Deal found 8/20![Multiple Airlines logo]()
$819
This Priceline deal was found by Cheapflights users on 8/20. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/3010:00 am -
1 stop15h 00m
Thu 11/266:00 am -
2 stops33h 07m
Deal found 8/20![Air Canada logo]()
$823
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 25, 2026.
Search for one-way flight options from Houston to Portugal. Find affordable one-way fares based on user searches. Data last updated August 25, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/112:21 pm -
3 stops44h 49m
Deal found 8/24![Multiple Airlines logo]()
$325
This Air Canada deal was found by Cheapflights users on 8/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/911:50 am -
1 stop13h 05m
Deal found 8/22![Air Canada logo]()
$338
This Kiwi.com deal was found by Cheapflights users on 8/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/168:35 pm -
3 stops41h 15m
Deal found 8/22![Multiple Airlines logo]()
$352
This British Airways deal was found by Cheapflights users on 8/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure 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 8/25![British Airways logo]()
$358
This United Airlines deal was found by Cheapflights users on 8/21. 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 United Airlines 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 8/21![United Airlines logo]()
$359
This Delta deal was found by Cheapflights users on 8/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/96:08 am -
2 stops19h 52m
Deal found 8/25![Delta logo]()
$360
This Expedia deal was found by Cheapflights users on 8/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/313:50 pm -
1 stop19h 25m
Deal found 8/24![British Airways logo]()
$377
This Kiwi.com deal was found by Cheapflights users on 8/21. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/248:25 pm -
2 stops55h 10m
Deal found 8/21![Multiple Airlines logo]()
$382
This Kiwi.com deal was found by Cheapflights users on 8/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1010:22 am -
3 stops54h 53m
Deal found 8/23![Multiple Airlines logo]()
$385
This Kiwi.com deal was found by Cheapflights users on 8/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1210:12 am -
3 stops30h 48m
Deal found 8/23![Multiple Airlines logo]()
$393
This Kiwi.com deal was found by Cheapflights users on 8/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/111:50 pm -
3 stops36h 40m
Deal found 8/23![Multiple Airlines logo]()
$395
This Justfly.com deal was found by Cheapflights users on 8/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/3111:35 am -
2 stops23h 40m
Deal found 8/24![British Airways logo]()
$407
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 25, 2026.
Round-trip from | $699 (Gotogate) |
|---|---|
One-way from | $325 (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 25, 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
7:10 pm-10:00 pm
1 stop20h 50m
Porto
Fri 12/11
5:00 am-1:05 pm
1 stop14h 05m
$709
HoustonPorto
IAH Houston George Bush Intcntl - OPO Porto
IAHOPO
Houston George Bush Intcntl
Mon 12/7
11:55 am-9:30 am
2 stops15h 35m
Porto
Fri 12/11
6:00 am-6:15 pm
1 stop18h 15m
$712
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
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-6:15 pm
1 stop19h 15m
$723
HoustonPorto
IAH Houston George Bush Intcntl - OPO Porto
IAHOPO
Houston George Bush Intcntl
Sat 2/20
6:25 pm-9:30 am
1 stop33h 05m
Porto
Tue 3/2
6:00 am-6:15 pm
1 stop18h 15m
$724
HoustonPorto
HOU Houston Hobby - OPO Porto
HOUOPO
Houston Hobby
Mon 12/7
5:30 pm-3:25 pm
2 stops15h 55m
Porto
Fri 12/11
5:00 am-4:35 pm
2 stops17h 35m
$728
HoustonLisbon
IAH Houston George Bush Intcntl - LIS Lisbon Humberto Delgado
IAHLIS
Houston George Bush Intcntl
Sun 2/21
11:55 am-6:55 am
1 stop13h 00m
Lisbon Humberto Delgado
Tue 3/2
5:00 am-6:15 pm
1 stop19h 15m
$728
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
IAH Houston George Bush Intcntl - LIS Lisbon Humberto Delgado
IAHLIS
Houston George Bush Intcntl
Mon 11/23
11:50 am-10:40 am
1 stop16h 50m
Lisbon Humberto Delgado
Tue 12/1
5:00 am-2:00 pm
1 stop15h 00m
$754
Quickest round-trip
HoustonLisbon
IAH Houston George Bush Intcntl - LIS Lisbon Humberto Delgado
IAHLIS
Houston George Bush Intcntl
Tue 11/24
11:55 am-8:10 am
2 stops14h 15m
Lisbon Humberto Delgado
Tue 12/1
5:00 am-2:00 pm
1 stop15h 00m
$760
Showing 1-10 of 52 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
HOU-LIS
IAH-OPO
HOU-OPO
IAH-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-LIS
HOU-LIS
IAH-OPO
HOU-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 $1,347). 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 25, 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
Food
7.3
Crew
8.4
Entertainment
7.2
Overall
7.8
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Boarding
7.8
Comfort
7.7
Food
7.3
Crew
8.4
Entertainment
7.2
Overall
7.8
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Boarding
7.8
Comfort
7.7
Food
7.3
Crew
8.4
Entertainment
7.2
Overall
7.8
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Boarding
7.8
Comfort
7.7
Food
7.3
Crew
8.4
Entertainment
7.2
Overall
7.8
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Boarding
7.8
Comfort
7.7
Food
7.3
Crew
8.4
Entertainment
7.2
Overall
7.8
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Boarding
7.8
Comfort
7.7
Food
7.3
Crew
8.4
Entertainment
7.2
Overall
7.8
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 25, 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 25, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$476 | Average$917 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$484 | Average$915 | 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$1,070 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$704 | Average$893 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$719 | Average$1,254 | FlexibilityNo cancel fee | On-time76% |