$357+ Cheap flights from Portugal to Houston
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 2/25. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — HOU
Mar 13 — Mar 201
1 adult, Economy
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Find cheap flights from Portugal to Houston 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 Portugal to HoustonExplore the most affordable flight options available from Portugal to Houston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 11, 2026.
Explore the most affordable flight options available from Portugal to Houston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 11, 2026.
This Mytrip deal was found by Cheapflights users on 2/9. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/308:05 pm
LIS
- IAH
2 stops33h 44m
Multiple Airlines
Mon 4/1311:41 am
IAH
- LIS
3 stops29h 19m
Multiple Airlines
Deal found 2/9![Multiple Airlines logo]()
$758
This deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/267:20 am
LIS
- IAH
1 stop17h 50m
British Airways
Sun 5/39:05 pm
IAH
- LIS
1 stop14h 40m
British Airways
Deal found 2/10![British Airways logo]()
$812
This KLM deal was found by Cheapflights users on 2/8. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/104:50 pm
LIS
- IAH
1 stop26h 40m
Multiple Airlines
Tue 3/175:05 pm
IAH
- LIS
1 stop13h 15m
Multiple Airlines
Deal found 2/8![Multiple Airlines logo]()
$832
This KLM deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” 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 3/23:30 pm
LIS
- IAH
1 stop28h 00m
KLM
Sun 3/84:30 pm
IAH
- LIS
1 stop17h 05m
KLM
Deal found 2/10![KLM logo]()
$839
This Delta deal was found by Cheapflights users on 2/8. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/105:00 am
LIS
- IAH
2 stops18h 28m
Delta
Tue 3/176:54 pm
IAH
- LIS
2 stops17h 36m
Delta
Deal found 2/8![Delta logo]()
$840
This Delta deal was found by Cheapflights users on 2/9. 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.
Mon 3/305:00 am
LIS
- IAH
1 stop14h 15m
Delta
Mon 4/136:46 pm
IAH
- LIS
2 stops17h 59m
Delta
Deal found 2/9![Delta logo]()
$845
This Delta deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” 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 3/25:00 am
LIS
- IAH
2 stops18h 35m
Delta
Sun 3/84:30 pm
IAH
- LIS
1 stop13h 05m
Delta
Deal found 2/10![Delta logo]()
$849
This Mytrip deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” 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 3/292:10 pm
LIS
- IAH
3 stops34h 04m
Multiple Airlines
Mon 4/1311:41 am
IAH
- LIS
3 stops29h 19m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$850
This Kiwi.com deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” 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 2/1112:35 pm
LIS
- IAH
2 stops26h 38m
Multiple Airlines
Wed 2/185:24 pm
IAH
- LIS
1 stop13h 11m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$853
This United Airlines deal was found by Cheapflights users on 2/9. 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.
Mon 3/305:05 am
LIS
- IAH
1 stop18h 55m
United Airlines
Mon 4/132:43 pm
IAH
- LIS
1 stop11h 37m
United Airlines
Deal found 2/9![United Airlines logo]()
$863
This KLM deal was found by Cheapflights users on 2/9. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/1611:25 am
LIS
- IAH
1 stop32h 05m
Multiple Airlines
Mon 3/24:05 pm
IAH
- LIS
1 stop17h 05m
Multiple Airlines
Deal found 2/9![Multiple Airlines logo]()
$869
This Delta deal was found by Cheapflights users on 2/8. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/105:00 am
LIS
- HOU
2 stops22h 42m
Delta
Tue 3/175:22 pm
HOU
- LIS
2 stops19h 08m
Delta
Deal found 2/8![Delta logo]()
$875
Best flights from Portugal to HoustonDiscover carefully curated flight deals from Portugal to Houston that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 11, 2026.
Discover carefully curated flight deals from Portugal to Houston that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 11, 2026.
This Mytrip deal was found by Cheapflights users on 2/9. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/308:05 pm
LIS
- IAH
2 stops33h 44m
Multiple Airlines
Mon 4/1311:41 am
IAH
- LIS
3 stops29h 19m
Multiple Airlines
Deal found 2/9![Multiple Airlines logo]()
$758
This deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/267:20 am
LIS
- IAH
1 stop17h 50m
British Airways
Sun 5/39:05 pm
IAH
- LIS
1 stop14h 40m
British Airways
Deal found 2/10![British Airways logo]()
$812
This KLM deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” 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 3/23:30 pm
LIS
- IAH
1 stop28h 00m
KLM
Sun 3/84:30 pm
IAH
- LIS
1 stop17h 05m
KLM
Deal found 2/10![KLM logo]()
$839
This Delta deal was found by Cheapflights users on 2/8. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/105:00 am
LIS
- IAH
2 stops18h 28m
Delta
Tue 3/176:54 pm
IAH
- LIS
2 stops17h 36m
Delta
Deal found 2/8![Delta logo]()
$840
This United Airlines deal was found by Cheapflights users on 2/9. 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.
Mon 3/305:05 am
LIS
- IAH
1 stop18h 55m
United Airlines
Mon 4/132:43 pm
IAH
- LIS
1 stop11h 37m
United Airlines
Deal found 2/9![United Airlines logo]()
$863
This American Airlines deal was found by Cheapflights users on 2/7. 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.
Sun 2/2211:05 am
LIS
- HOU
2 stops18h 53m
American Airlines
Wed 2/2510:13 am
HOU
- LIS
2 stops16h 42m
American Airlines
Deal found 2/7![American Airlines logo]()
$1,127
This Virgin Atlantic deal was found by Cheapflights users on 2/8. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/2610:40 am
LIS
- HOU
2 stops17h 02m
Virgin Atlantic
Thu 4/211:33 am
HOU
- LIS
2 stops17h 12m
Virgin Atlantic
Deal found 2/8![Virgin Atlantic logo]()
$1,286
This KLM deal was found by Cheapflights users on 2/8. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/104:50 pm
LIS
- IAH
1 stop26h 40m
Multiple Airlines
Tue 3/175:05 pm
IAH
- LIS
1 stop13h 15m
Multiple Airlines
Deal found 2/8![Multiple Airlines logo]()
$832
This Delta deal was found by Cheapflights users on 2/9. 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.
Mon 3/305:00 am
LIS
- IAH
1 stop14h 15m
Delta
Mon 4/133:50 pm
IAH
- LIS
1 stop13h 25m
Delta
Deal found 2/9![Delta logo]()
$840
This Delta deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” 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 3/25:00 am
LIS
- IAH
2 stops18h 35m
Delta
Sun 3/84:30 pm
IAH
- LIS
1 stop13h 05m
Delta
Deal found 2/10![Delta logo]()
$849
This Mytrip deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” 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 3/292:10 pm
LIS
- IAH
3 stops34h 04m
Multiple Airlines
Mon 4/1311:41 am
IAH
- LIS
3 stops29h 19m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$850
This Delta deal was found by Cheapflights users on 2/8. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/105:00 am
LIS
- HOU
2 stops22h 42m
Delta
Tue 3/175:22 pm
HOU
- LIS
2 stops19h 08m
Delta
Deal found 2/8![Delta logo]()
$875
This Delta deal was found by Cheapflights users on 2/8. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/2510:00 am
LIS
- HOU
2 stops17h 42m
Delta
Wed 4/16:00 am
HOU
- LIS
2 stops23h 15m
Delta
Deal found 2/8![Delta logo]()
$972
This Delta deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” 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 5/265:35 am
LIS
- HOU
2 stops23h 33m
Delta
Fri 7/31:00 pm
HOU
- LIS
2 stops19h 55m
Delta
Deal found 2/10![Delta logo]()
$1,075
This Virgin Atlantic deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” 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.
Sun 3/2912:45 pm
LIS
- HOU
2 stops15h 57m
Virgin Atlantic
Mon 4/131:31 pm
HOU
- LIS
2 stops15h 14m
Virgin Atlantic
Deal found 2/10![Virgin Atlantic logo]()
$1,634
This Delta deal was found by Cheapflights users on 2/8. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/245:35 am
LIS
- HOU
2 stops22h 03m
Delta
Sun 6/281:00 pm
HOU
- LIS
2 stops23h 45m
Delta
Deal found 2/8![Delta logo]()
$1,155
This Ovago deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” 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.
Thu 7/28:25 am
LIS
- HOU
2 stops17h 27m
Multiple Airlines
Sat 7/46:23 pm
HOU
- LIS
2 stops17h 42m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$1,741
This Delta deal was found by Cheapflights users on 2/9. 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.
Mon 3/305:00 am
LIS
- HOU
2 stops23h 42m
Delta
Mon 4/1310:46 am
HOU
- LIS
2 stops22h 09m
Delta
Deal found 2/9![Delta logo]()
$1,344
This Cheapflightsfares deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” 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.
Mon 3/28:20 am
LIS
- HOU
2 stops17h 30m
Multiple Airlines
Sun 3/84:20 pm
HOU
- LIS
2 stops17h 30m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$2,074
This Delta deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” 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 3/295:00 am
LIS
- HOU
2 stops23h 42m
Delta
Mon 4/131:31 pm
HOU
- LIS
2 stops22h 19m
Delta
Deal found 2/11![Delta logo]()
$1,828
Last-minute flights from Portugal to HoustonDiscover last-minute flight deals from Portugal to Houston. Data last updated February 11, 2026 and is based on user searches.
Discover last-minute flight deals from Portugal to Houston. Data last updated February 11, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” 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 2/1112:35 pm
LIS
- IAH
2 stops26h 38m
Multiple Airlines
Wed 2/185:24 pm
IAH
- LIS
1 stop13h 11m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$853
This KLM deal was found by Cheapflights users on 2/9. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/1611:25 am
LIS
- IAH
1 stop32h 05m
Multiple Airlines
Mon 3/24:05 pm
IAH
- LIS
1 stop17h 05m
Multiple Airlines
Deal found 2/9![Multiple Airlines logo]()
$869
This KLM deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” 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 3/23:30 pm
LIS
- IAH
1 stop28h 00m
KLM
Sun 3/84:30 pm
IAH
- LIS
1 stop17h 05m
KLM
Deal found 2/10![KLM logo]()
$839
This Delta deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” 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 3/25:00 am
LIS
- IAH
2 stops18h 35m
Delta
Sun 3/84:30 pm
IAH
- LIS
1 stop13h 05m
Delta
Deal found 2/10![Delta logo]()
$849
This KLM deal was found by Cheapflights users on 2/8. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/104:50 pm
LIS
- IAH
1 stop26h 40m
Multiple Airlines
Tue 3/175:05 pm
IAH
- LIS
1 stop13h 15m
Multiple Airlines
Deal found 2/8![Multiple Airlines logo]()
$832
This Delta deal was found by Cheapflights users on 2/8. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/105:00 am
LIS
- IAH
2 stops18h 28m
Delta
Tue 3/176:54 pm
IAH
- LIS
2 stops17h 36m
Delta
Deal found 2/8![Delta logo]()
$840
This Delta deal was found by Cheapflights users on 2/8. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/105:00 am
LIS
- HOU
2 stops22h 42m
Delta
Tue 3/175:22 pm
HOU
- LIS
2 stops19h 08m
Delta
Deal found 2/8![Delta logo]()
$875
This Delta deal was found by Cheapflights users on 2/8. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/2510:00 am
LIS
- HOU
2 stops17h 42m
Delta
Wed 4/16:00 am
HOU
- LIS
2 stops23h 15m
Delta
Deal found 2/8![Delta logo]()
$972
This Mytrip deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” 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 3/292:10 pm
LIS
- IAH
3 stops34h 04m
Multiple Airlines
Mon 4/1311:41 am
IAH
- LIS
3 stops29h 19m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$850
This Mytrip deal was found by Cheapflights users on 2/9. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/308:05 pm
LIS
- IAH
2 stops33h 44m
Multiple Airlines
Mon 4/1311:41 am
IAH
- LIS
3 stops29h 19m
Multiple Airlines
Deal found 2/9![Multiple Airlines logo]()
$758
This Delta deal was found by Cheapflights users on 2/9. 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.
Mon 3/305:00 am
LIS
- IAH
1 stop14h 15m
Delta
Mon 4/136:46 pm
IAH
- LIS
2 stops17h 59m
Delta
Deal found 2/9![Delta logo]()
$845
This United Airlines deal was found by Cheapflights users on 2/9. 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.
Mon 3/305:05 am
LIS
- IAH
1 stop18h 55m
United Airlines
Mon 4/132:43 pm
IAH
- LIS
1 stop11h 37m
United Airlines
Deal found 2/9![United Airlines logo]()
$863
One-way flights from Portugal to HoustonSearch for one-way flight options from Portugal to Houston. Find affordable one-way fares based on user searches. Data last updated February 11, 2026.
Search for one-way flight options from Portugal to Houston. Find affordable one-way fares based on user searches. Data last updated February 11, 2026.
This Kiwi.com deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” 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 2/257:35 pm
LIS
- IAH
2 stops33h 06m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$357
This Kiwi.com deal was found by Cheapflights users on 2/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/86:35 am
LIS
- IAH
2 stops34h 12m
Multiple Airlines
Deal found 2/8![Multiple Airlines logo]()
$386
This Kiwi.com deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” 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 4/108:25 am
LIS
- IAH
2 stops45h 12m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$399
This Kiwi.com deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” 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 4/118:35 pm
LIS
- IAH
2 stops46h 10m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$411
This Kiwi.com deal was found by Cheapflights users on 2/9. 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 5/278:55 am
LIS
- IAH
3 stops20h 56m
Multiple Airlines
Deal found 2/9![Multiple Airlines logo]()
$413
This Kiwi.com deal was found by Cheapflights users on 2/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/96:35 am
LIS
- IAH
2 stops23h 14m
Multiple Airlines
Deal found 2/8![Multiple Airlines logo]()
$414
This Iberia deal was found by Cheapflights users on 2/9. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/228:25 am
LIS
- HOU
2 stops21h 34m
Iberia
Deal found 2/9![Iberia logo]()
$556
This Kiwi.com deal was found by Cheapflights users on 2/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/2210:30 pm
LIS
- HOU
3 stops30h 38m
Multiple Airlines
Deal found 2/8![Multiple Airlines logo]()
$566
This American Airlines deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” 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 4/911:05 am
LIS
- HOU
2 stops18h 42m
American Airlines
Deal found 2/10![American Airlines logo]()
$567
This British Airways deal was found by Cheapflights users on 2/9. 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.
Thu 4/97:20 am
LIS
- HOU
2 stops18h 31m
Multiple Airlines
Deal found 2/9![Multiple Airlines logo]()
$570
This Kiwi.com deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” 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 4/1210:20 pm
LIS
- HOU
3 stops30h 46m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$574
This American Airlines deal was found by Cheapflights users on 2/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/811:05 am
LIS
- HOU
2 stops18h 42m
American Airlines
Deal found 2/9![American Airlines logo]()
$589
Find flight deals from Portugal to Houston
Keep the following information in mind while searching for Portugal to Houston flight deals. Data was last updated February 11, 2026.
Round-trip from | $758 (Mytrip) |
|---|---|
One-way from | $357 (Kiwi.com) |
Popular in | July |
Cheapest in | September |
Average price | $797 |
Cheapflights Fare Finder
Customize your flight search to find flights from Portugal to Houston that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 11, 2026.
Use the filters below to find and compare flights from Portugal to Houston that are best for you.
Fly from
Portugal
Fly to
Houston
Route
Depart
Return
Price
LisbonHouston
LIS - IAH
LISIAH
Lisbon Humberto Delgado
Mon 3/30
8:05 pm-11:49 pm
2 stops33h 44m
Houston George Bush Intcntl
Mon 4/13
11:41 am-11:00 pm
3 stops29h 19m
$758
LisbonHouston
LIS - IAH
LISIAH
Lisbon Humberto Delgado
Sun 4/26
7:20 am-7:10 pm
1 stop17h 50m
Houston George Bush Intcntl
Sun 5/3
9:05 pm-5:45 pm
1 stop14h 40m
$812
LisbonHouston
LIS - IAH
LISIAH
Lisbon Humberto Delgado
Tue 3/10
4:50 pm-2:30 pm
1 stop26h 40m
Houston George Bush Intcntl
Tue 3/17
5:05 pm-11:20 am
1 stop13h 15m
$832
LisbonHouston
LIS - IAH
LISIAH
Lisbon Humberto Delgado
Mon 3/2
3:30 pm-1:30 pm
1 stop28h 00m
Houston George Bush Intcntl
Sun 3/8
4:30 pm-2:35 pm
1 stop17h 05m
$839
LisbonHouston
LIS - IAH
LISIAH
Lisbon Humberto Delgado
Tue 3/10
5:00 am-6:28 pm
2 stops18h 28m
Houston George Bush Intcntl
Tue 3/17
6:54 pm-5:30 pm
2 stops17h 36m
$840
LisbonHouston
LIS - IAH
LISIAH
Lisbon Humberto Delgado
Mon 3/30
5:00 am-1:15 pm
1 stop14h 15m
Houston George Bush Intcntl
Mon 4/13
3:50 pm-11:15 am
1 stop13h 25m
$840
LisbonHouston
LIS - IAH
LISIAH
Lisbon Humberto Delgado
Mon 3/2
5:00 am-5:35 pm
2 stops18h 35m
Houston George Bush Intcntl
Sun 3/8
4:30 pm-10:35 am
1 stop13h 05m
$849
LisbonHouston
LIS - IAH
LISIAH
Lisbon Humberto Delgado
Sun 3/29
2:10 pm-6:14 pm
3 stops34h 04m
Houston George Bush Intcntl
Mon 4/13
11:41 am-11:00 pm
3 stops29h 19m
$850
LisbonHouston
LIS - IAH
LISIAH
Lisbon Humberto Delgado
Mon 3/30
5:05 am-6:00 pm
1 stop18h 55m
Houston George Bush Intcntl
Mon 4/13
2:43 pm-8:20 am
1 stop11h 37m
$863
LisbonHouston
LIS - HOU
LISHOU
Lisbon Humberto Delgado
Tue 3/10
5:00 am-10:42 pm
2 stops22h 42m
Houston Hobby
Tue 3/17
5:22 pm-5:30 pm
2 stops19h 08m
$875
Showing 1-10 of 37 results
Best time to book a flight from Portugal to Houston
Have a flexible travel schedule? Discover the best time to fly to Houston from Portugal with our price prediction graph.
LIS-IAH
LIS-HOU
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 Portugal to Houston
PT0-HO1
LIS-IAH
LIS-HOU
What is the cheapest month to book a flight from Portugal to Houston?
Currently, January is the cheapest month in which you can book a flight from Portugal to Houston (average of $525). Flying from Portugal to Houston in July is currently the most expensive (average of $1,000). 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.
Reviews of airlines servicing Houston
Get insights into the airlines that provide service to Houston. 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 Houston. Reviews last updated February 11, 2026.
Peruse reviews from past customers who have flown with United Airlines from Portugal to Houston to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
7.7
Overall
7.4
Crew
8.1
Entertainment
7.1
Food
6.6
Comfort
7.3
Reviews
1 / 20
6.0
GoodGerry,Jan 2026
YVR - DEN
Boarding
7.7
Overall
7.4
Crew
8.1
Entertainment
7.1
Food
6.6
Comfort
7.3
Reviews
1 / 20
6.0
GoodGerry,Jan 2026
YVR - DEN
Related info for your journey
Find useful and relevant information for your journey from Portugal to Houston. 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 Portugal to Houston
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Complete your trip
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Search flights from Portugal to Houston by cabin class
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Portugal and Houston flights
Browse other Portugal and Houston flight options. Last updated on February 11, 2026.
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Portugal to Houston flights
Consider these flights traveling from Portugal to Houston.
Top airline flying from Portugal to Houston
Discover the top airline that operate flights from Portugal to Houston. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 11, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$794 | Average$854 | FlexibilityNo cancel fee | On-time69% |