$291+ 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 1/12. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — LIS
Dec 10 — Dec 171
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 November 10, 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 November 10, 2026.
This Mytrip deal was found by Cheapflights users on 11/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/89:24 pm -
3 stops33h 26m
Tue 12/2211:40 am -
3 stops30h 44m
Deal found 11/8![Multiple Airlines logo]()
$734
This Delta deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” 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 12/1311:08 am -
1 stop15h 07m
Fri 12/255:00 am -
1 stop14h 05m
Deal found 11/9![Delta logo]()
$756
This Delta deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” 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 12/136:15 am -
2 stops20h 00m
Thu 12/2411:15 am -
1 stop31h 50m
Deal found 11/9![Delta logo]()
$761
This Delta deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” 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 12/137:05 am -
1 stop19h 10m
Tue 12/225:55 am -
1 stop16h 55m
Deal found 11/9![Delta logo]()
$763
This United deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” 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 12/2811:55 am -
1 stop15h 25m
Wed 1/135:00 am -
1 stop19h 15m
Deal found 11/5![Multiple Airlines logo]()
$765
This Delta deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” 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 12/135:02 am -
2 stops20h 58m
Thu 12/2411:30 am -
1 stop31h 35m
Deal found 11/9![Delta logo]()
$768
This Delta deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” 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 12/135:02 am -
2 stops20h 58m
Tue 12/225:30 am -
1 stop17h 20m
Deal found 11/9![Delta logo]()
$775
This Delta deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” 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 12/137:05 am -
1 stop19h 10m
Mon 12/2111:30 am -
1 stop35h 20m
Deal found 11/9![Delta logo]()
$776
This Delta deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” 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 12/136:15 am -
2 stops20h 40m
Fri 12/255:00 am -
2 stops21h 17m
Deal found 11/9![Delta logo]()
$778
This United Airlines deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/132:30 pm -
1 stop13h 35m
Wed 12/2311:20 am -
1 stop35h 58m
Deal found 11/9![United Airlines logo]()
$783
This Delta deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” 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 12/135:02 am -
2 stops20h 58m
Mon 12/2112:25 pm -
1 stop34h 25m
Deal found 11/9![Delta logo]()
$788
This American Airlines deal was found by Cheapflights users on 11/7. Clicking the “Pick Dates” 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.
Tue 12/812:13 pm -
2 stops14h 52m
Tue 12/2211:05 am -
2 stops18h 54m
Deal found 11/7![American Airlines logo]()
$789
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 November 10, 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 November 10, 2026.
This Expedia deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” 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 4/143:40 pm -
1 stop18h 00m
Wed 4/216:45 pm -
2 stops32h 39m
Deal found 11/9![Multiple Airlines logo]()
$708
This Delta deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” 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 2/75:30 am -
2 stops23h 05m
Wed 2/1711:15 am -
1 stop31h 55m
Deal found 11/5![Delta logo]()
$717
This United Airlines deal was found by Cheapflights users on 11/8. Clicking the “Pick Dates” 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 4/132:30 pm -
1 stop13h 15m
Fri 4/236:00 am -
2 stops23h 35m
Deal found 11/8![United Airlines logo]()
$722
This British Airways deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/63:50 pm -
1 stop18h 35m
Tue 12/224:25 pm -
1 stop27h 40m
Deal found 11/5![British Airways logo]()
$825
This KLM deal was found by Cheapflights users on 11/7. Clicking the “Pick Dates” 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 2/266:57 pm -
2 stops32h 23m
Sun 3/710:10 am -
2 stops19h 48m
Deal found 11/7![KLM logo]()
$861
This Expedia deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” 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 2/1011:32 am -
2 stops19h 58m
Wed 2/1710:15 am -
2 stops31h 08m
Deal found 11/5![TAP AIR PORTUGAL logo]()
$997
This Delta deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” 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 2/37:15 am -
2 stops21h 20m
Mon 2/1511:15 am -
1 stop31h 50m
Deal found 11/5![Delta logo]()
$717
This United Airlines deal was found by Cheapflights users on 11/7. Clicking the “Pick Dates” 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 2/228:25 am -
2 stops19h 05m
Fri 2/266:00 am -
2 stops21h 00m
Deal found 11/7![United Airlines logo]()
$726
This United deal was found by Cheapflights users on 11/8. Clicking the “Pick Dates” 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 12/283:30 pm -
1 stop11h 50m
Wed 1/135:00 am -
1 stop19h 15m
Deal found 11/8![Multiple Airlines logo]()
$765
This Delta deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” 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 4/141:15 pm -
2 stops20h 10m
Wed 4/2111:45 am -
2 stops18h 13m
Deal found 11/9![Delta logo]()
$727
This United Airlines deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” 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 2/212:00 pm -
2 stops17h 45m
Wed 2/176:00 am -
1 stop18h 15m
Deal found 11/5![United Airlines logo]()
$778
This United deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” 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.
Thu 4/1512:00 pm -
1 stop15h 45m
Sun 4/186:00 am -
1 stop18h 00m
Deal found 11/9![Multiple Airlines logo]()
$812
This Delta deal was found by Cheapflights users on 11/7. Clicking the “Pick Dates” 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 2/107:10 pm -
1 stop14h 00m
Mon 2/2211:30 am -
1 stop31h 35m
Deal found 11/7![Delta logo]()
$742
This Flysmarter deal was found by Cheapflights users on 11/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/75:06 pm -
2 stops19h 14m
Wed 12/236:45 pm -
1 stop25h 20m
Deal found 11/8![British Airways logo]()
$906
This United Airlines deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” 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 1/215:00 am -
1 stop19h 15m
Deal found 11/5![United Airlines logo]()
$815
This Delta deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/57:10 pm -
1 stop20h 50m
Tue 2/165:00 am -
1 stop14h 05m
Deal found 11/5![Delta logo]()
$763
This KAYAK deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/206:50 pm -
2 stops33h 30m
Wed 12/302:10 pm -
1 stop32h 10m
Deal found 11/6![Lufthansa logo]()
$2,056
This Delta deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/57:10 pm -
1 stop20h 50m
Wed 2/1711:15 am -
1 stop31h 55m
Deal found 11/5![Delta logo]()
$763
This TAP AIR PORTUGAL deal was found by Cheapflights users on 11/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/1011:32 am -
2 stops26h 43m
Sun 2/1412:50 pm -
2 stops28h 33m
Deal found 11/7![TAP AIR PORTUGAL logo]()
$1,143
This Orbitz deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” 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 5/42:25 pm -
2 stops17h 25m
Wed 5/121:40 pm -
2 stops50h 26m
Deal found 11/5![TAP AIR PORTUGAL logo]()
$1,159
This British Airways deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” 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 12/269:52 am -
2 stops30h 38m
Fri 1/87:05 am -
2 stops22h 39m
Deal found 11/9![British Airways logo]()
$1,227
This Delta deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” 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 4/1511:30 am -
2 stops21h 25m
Sun 4/255:00 am -
1 stop14h 15m
Deal found 11/5![Delta logo]()
$845
This United Airlines deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” 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 12/152:35 pm -
1 stop11h 35m
Sat 12/265:00 am -
1 stop15h 00m
Deal found 11/9![United Airlines logo]()
$1,037
This Trip.com deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/49:10 pm -
3 stops63h 35m
Wed 5/121:40 pm -
2 stops34h 35m
Deal found 11/5![Multiple Airlines logo]()
$1,143
This Mytrip deal was found by Cheapflights users on 11/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/411:55 am -
2 stops17h 10m
Sat 12/128:25 am -
3 stops30h 20m
Deal found 11/7![Multiple Airlines logo]()
$1,155
This United Airlines deal was found by Cheapflights users on 11/8. Clicking the “Pick Dates” 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 12/237:55 pm -
1 stop30h 15m
Tue 12/295:00 am -
1 stop15h 00m
Deal found 11/8![United Airlines logo]()
$1,154
This Delta deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” 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 2/95:24 pm -
2 stops34h 06m
Wed 2/1710:25 am -
2 stops41h 51m
Deal found 11/5![Delta logo]()
$1,001
This Mytrip deal was found by Cheapflights users on 11/8. Clicking the “Pick Dates” 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 12/72:16 pm -
2 stops19h 24m
Wed 12/238:50 pm -
3 stops33h 36m
Deal found 11/8![Multiple Airlines logo]()
$1,312
This United Airlines deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” 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 12/154:45 pm -
1 stop11h 35m
Tue 12/2912:20 pm -
1 stop19h 10m
Deal found 11/9![United Airlines logo]()
$1,202
This Delta deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/126:05 am -
2 stops29h 45m
Sun 2/2110:10 am -
2 stops19h 49m
Deal found 11/5![Delta logo]()
$1,101
Last-minute flights from Houston to PortugalDiscover last-minute flight deals from Houston to Portugal. Data last updated November 10, 2026 and is based on user searches.
Discover last-minute flight deals from Houston to Portugal. Data last updated November 10, 2026 and is based on user searches.
This Mytrip deal was found by Cheapflights users on 11/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/89:24 pm -
3 stops33h 26m
Tue 12/2211:40 am -
3 stops30h 44m
Deal found 11/8![Multiple Airlines logo]()
$734
This American Airlines deal was found by Cheapflights users on 11/7. Clicking the “Pick Dates” 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.
Tue 12/812:13 pm -
2 stops14h 52m
Tue 12/2211:05 am -
2 stops18h 54m
Deal found 11/7![American Airlines logo]()
$789
This Delta deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” 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 12/1311:08 am -
1 stop15h 07m
Fri 12/255:00 am -
1 stop14h 05m
Deal found 11/9![Delta logo]()
$756
This Delta deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” 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 12/136:15 am -
2 stops20h 00m
Thu 12/2411:15 am -
1 stop31h 50m
Deal found 11/9![Delta logo]()
$761
This Delta deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” 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 12/137:05 am -
1 stop19h 10m
Tue 12/225:55 am -
1 stop16h 55m
Deal found 11/9![Delta logo]()
$763
This Delta deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” 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 12/135:02 am -
2 stops20h 58m
Thu 12/2411:30 am -
1 stop31h 35m
Deal found 11/9![Delta logo]()
$768
This Delta deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” 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 12/135:02 am -
2 stops20h 58m
Tue 12/225:30 am -
1 stop17h 20m
Deal found 11/9![Delta logo]()
$775
This Delta deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” 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 12/137:05 am -
1 stop19h 10m
Mon 12/2111:30 am -
1 stop35h 20m
Deal found 11/9![Delta logo]()
$776
This United Airlines deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/134:45 pm -
1 stop11h 20m
Thu 12/248:55 am -
1 stop18h 39m
Deal found 11/9![United Airlines logo]()
$778
This United Airlines deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/138:24 am -
2 stops19h 41m
Wed 12/2311:20 am -
1 stop29h 33m
Deal found 11/9![United Airlines logo]()
$783
This Delta deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” 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 12/135:02 am -
2 stops20h 58m
Mon 12/2112:25 pm -
1 stop34h 25m
Deal found 11/9![Delta logo]()
$788
This United deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” 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 12/2811:55 am -
1 stop15h 25m
Wed 1/135:00 am -
1 stop19h 15m
Deal found 11/5![Multiple Airlines logo]()
$765
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 November 10, 2026.
Search for one-way flight options from Houston to Portugal. Find affordable one-way fares based on user searches. Data last updated November 10, 2026.
This Kiwi.com deal was found by Cheapflights users on 11/7. Clicking the “Pick Dates” 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 1/125:20 am -
2 stops35h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/7![Multiple Airlines logo]()
$291
This Kiwi.com deal was found by Cheapflights users on 11/7. Clicking the “Pick Dates” 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 1/136:00 am -
3 stops49h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/7![Multiple Airlines logo]()
$298
This Expedia deal was found by Cheapflights users on 11/8. Clicking the “Pick Dates” 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 2/143:50 pm -
1 stop23h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/8![British Airways logo]()
$331
This Kiwi.com deal was found by Cheapflights users on 11/7. Clicking the “Pick Dates” 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 1/106:05 am -
2 stops31h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/7![Multiple Airlines logo]()
$331
This Kiwi.com deal was found by Cheapflights users on 11/7. Clicking the “Pick Dates” 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 1/145:20 am -
2 stops26h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/7![Multiple Airlines logo]()
$333
This Expedia deal was found by Cheapflights users on 11/8. Clicking the “Pick Dates” 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 2/1410:32 am -
2 stops25h 33m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/8![Iberia logo]()
$343
This United Airlines deal was found by Cheapflights users on 11/8. Clicking the “Pick Dates” 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 2/148:25 am -
3 stops17h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/8![United Airlines logo]()
$345
This Kiwi.com deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” 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 1/273:27 pm -
2 stops33h 18m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/9![Multiple Airlines logo]()
$351
This Kiwi.com deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” 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 12/95:01 pm -
2 stops31h 44m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/5![Multiple Airlines logo]()
$355
This Expedia deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” 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 2/259:40 pm -
1 stop18h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/9![British Airways logo]()
$379
This Kiwi.com deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” 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 1/265:01 am -
2 stops34h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/9![Multiple Airlines logo]()
$384
This Expedia deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” 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 2/2510:03 am -
2 stops15h 37m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/9![Iberia logo]()
$392
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 November 10, 2026.
Round-trip from | $708 (Expedia) |
|---|---|
One-way from | $291 (Kiwi.com) |
Popular in | June |
Cheapest in | January |
Average price | $788 |
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 November 10, 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
HoustonLisbon
IAH Houston George Bush Intcntl - LIS Lisbon Humberto Delgado
IAHLIS
Houston George Bush Intcntl
Sun 2/14
3:50 pm-9:45 pm
1 stop23h 55m
Lisbon Humberto Delgado
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$331
HoustonLisbon
IAH Houston George Bush Intcntl - LIS Lisbon Humberto Delgado
IAHLIS
Houston George Bush Intcntl
Sun 2/14
8:25 am-8:10 am
3 stops17h 45m
Lisbon Humberto Delgado
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$345
HoustonLisbon
IAH Houston George Bush Intcntl - LIS Lisbon Humberto Delgado
IAHLIS
Houston George Bush Intcntl
Wed 12/9
7:39 pm-10:30 am
1 stop32h 51m
Lisbon Humberto Delgado
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$375
HoustonLisbon
IAH Houston George Bush Intcntl - LIS Lisbon Humberto Delgado
IAHLIS
Houston George Bush Intcntl
Thu 2/25
8:25 am-8:10 am
3 stops17h 45m
Lisbon Humberto Delgado
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$395
HoustonPorto
IAH Houston George Bush Intcntl - OPO Porto
IAHOPO
Houston George Bush Intcntl
Wed 3/31
5:05 pm-3:25 pm
1 stop16h 20m
Porto
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$410
HoustonPorto
IAH Houston George Bush Intcntl - OPO Porto
IAHOPO
Houston George Bush Intcntl
Sun 4/4
5:05 pm-3:25 pm
1 stop16h 20m
Porto
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$410
HoustonPorto
IAH Houston George Bush Intcntl - OPO Porto
IAHOPO
Houston George Bush Intcntl
Wed 3/31
7:20 am-9:45 am
2 stops20h 25m
Porto
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$411
HoustonLisbon
IAH Houston George Bush Intcntl - LIS Lisbon Humberto Delgado
IAHLIS
Houston George Bush Intcntl
Sat 5/1
8:18 pm-8:20 am
1 stop30h 02m
Lisbon Humberto Delgado
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$450
HoustonPorto
IAH Houston George Bush Intcntl - OPO Porto
IAHOPO
Houston George Bush Intcntl
Fri 4/2
8:40 am-9:45 am
3 stops19h 05m
Porto
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$471
HoustonPorto
IAH Houston George Bush Intcntl - OPO Porto
IAHOPO
Houston George Bush Intcntl
Thu 4/1
8:40 am-9:45 am
3 stops19h 05m
Porto
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$471
Showing 1-10 of 48 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
IAH-FNC
IAH-FAO
IAH-TER
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
IAH-FNC
IAH-FAO
What is the cheapest month to book a flight from Houston to Portugal?
Currently, February is the cheapest month in which you can book a flight from Houston to Portugal (average of $707). 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 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 November 10, 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
Entertainment
7.2
Boarding
7.8
Overall
7.8
Comfort
7.7
Food
7.4
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Crew
8.4
Entertainment
7.2
Boarding
7.8
Overall
7.8
Comfort
7.7
Food
7.4
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Crew
8.4
Entertainment
7.2
Boarding
7.8
Overall
7.8
Comfort
7.7
Food
7.4
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Crew
8.4
Entertainment
7.2
Boarding
7.8
Overall
7.8
Comfort
7.7
Food
7.4
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Crew
8.4
Entertainment
7.2
Boarding
7.8
Overall
7.8
Comfort
7.7
Food
7.4
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Crew
8.4
Entertainment
7.2
Boarding
7.8
Overall
7.8
Comfort
7.7
Food
7.4
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Related info for your journey
Find useful and relevant information for your journey from Houston to Portugal. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Houston to Portugal
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Portugal by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Houston to Portugal by cabin class
Find flights from Houston to Portugal, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Houston and Portugal flights
Browse other Houston and Portugal flight options. Last updated on November 10, 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 November 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$476 | Average$964 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$512 | Average$875 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$529 | Average$1,148 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$541 | Average$928 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$561 | Average$834 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$600 | Average$1,122 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$621 | Average$975 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$704 | Average$870 | FlexibilityNo cancel fee | On-time67% |