$386+ 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 5/9. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — LIS
พ.ค. 10 — พ.ค. 171
Round-trip
1 adult, Economy
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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 เมษายน 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 เมษายน 10, 2026.
This FlightHub deal was found by Cheapflights users on 4/5. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
จ. 4/272:30 pm
IAH
- LIS
1 stop19h 05m
Turkish Airlines
พ. 5/610:55 am
LIS
- IAH
1 stop38h 15m
Turkish Airlines
Deal found 4/5![Turkish Airlines logo]()
$633
This FlightHub deal was found by Cheapflights users on 4/6. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
อ. 4/289:05 pm
IAH
- LIS
1 stop20h 15m
Turkish Airlines
อ. 5/125:55 am
LIS
- IAH
1 stop19h 15m
Turkish Airlines
Deal found 4/6![Turkish Airlines logo]()
$636
This FlightHub deal was found by Cheapflights users on 4/8. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
พ. 10/219:05 pm
IAH
- LIS
1 stop20h 40m
Turkish Airlines
อ. 11/35:55 am
LIS
- IAH
1 stop38h 15m
Turkish Airlines
Deal found 4/8![Turkish Airlines logo]()
$661
This Justfly.com deal was found by Cheapflights users on 4/6. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
พ. 11/43:55 pm
IAH
- LIS
1 stop25h 30m
Turkish Airlines
พ. 11/115:55 am
LIS
- IAH
1 stop19h 15m
Turkish Airlines
Deal found 4/6![Turkish Airlines logo]()
$663
This FlightHub deal was found by Cheapflights users on 4/6. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
พ. 8/269:05 pm
IAH
- LIS
1 stop36h 40m
Turkish Airlines
ศ. 9/411:00 am
LIS
- IAH
1 stop38h 10m
Turkish Airlines
Deal found 4/6![Turkish Airlines logo]()
$672
This Gotogate deal was found by Cheapflights users on 4/5. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
จ. 4/209:05 pm
IAH
- LIS
1 stop20h 30m
Turkish Airlines
อ. 5/55:55 am
LIS
- IAH
1 stop19h 15m
Turkish Airlines
Deal found 4/5![Turkish Airlines logo]()
$673
This Turkish Airlines deal was found by Cheapflights users on 4/8. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
จ. 4/272:30 pm
IAH
- OPO
1 stop19h 20m
Turkish Airlines
พ. 5/610:45 am
OPO
- IAH
1 stop38h 25m
Turkish Airlines
Deal found 4/8![Turkish Airlines logo]()
$681
This SmartFares deal was found by Cheapflights users on 4/6. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
อา. 11/229:05 pm
IAH
- OPO
1 stop36h 05m
Turkish Airlines
อ. 12/110:55 am
OPO
- IAH
1 stop38h 15m
Turkish Airlines
Deal found 4/6![Turkish Airlines logo]()
$687
This Kiwi.com deal was found by Cheapflights users on 4/8. 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.
พ. 4/292:30 pm
IAH
- OPO
1 stop37h 10m
Turkish Airlines
พ. 5/2710:45 am
OPO
- IAH
1 stop38h 25m
Turkish Airlines
Deal found 4/8![Turkish Airlines logo]()
$688
This Turkish Airlines deal was found by Cheapflights users on 4/7. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
อ. 9/159:05 pm
IAH
- OPO
1 stop30h 55m
Turkish Airlines
พฤ. 9/244:40 pm
OPO
- IAH
1 stop26h 05m
Turkish Airlines
Deal found 4/7![Turkish Airlines logo]()
$691
This CheapOair deal was found by Cheapflights users on 4/5. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
อ. 9/89:05 pm
IAH
- LIS
1 stop36h 30m
Turkish Airlines
ศ. 9/255:55 am
LIS
- IAH
1 stop19h 15m
Turkish Airlines
Deal found 4/5![Turkish Airlines logo]()
$692
This FlightHub deal was found by Cheapflights users on 4/6. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ส. 9/269:05 pm
IAH
- LIS
1 stop36h 30m
Turkish Airlines
อ. 10/65:55 am
LIS
- IAH
1 stop19h 15m
Turkish Airlines
Deal found 4/6![Turkish Airlines logo]()
$698
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 เมษายน 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 เมษายน 10, 2026.
This Turkish Airlines deal was found by Cheapflights users on 4/7. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
อ. 9/159:05 pm
IAH
- OPO
1 stop30h 55m
Turkish Airlines
พฤ. 9/244:40 pm
OPO
- IAH
1 stop26h 05m
Turkish Airlines
Deal found 4/7![Turkish Airlines logo]()
$691
This Finnair deal was found by Cheapflights users on 4/5. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
จ. 4/204:59 pm
IAH
- LIS
2 stops24h 26m
Finnair
อ. 5/56:35 am
LIS
- IAH
2 stops23h 13m
Finnair
Deal found 4/5![Finnair logo]()
$787
This Delta deal was found by Cheapflights users on 4/10. 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.
อ. 4/211:31 pm
HOU
- LIS
2 stops15h 14m
Delta
พฤ. 5/710:00 am
LIS
- HOU
2 stops18h 26m
Delta
Deal found 4/10![Delta logo]()
$801
This Virgin Atlantic deal was found by Cheapflights users on 4/7. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
พ. 4/226:00 am
HOU
- LIS
2 stops22h 45m
Virgin Atlantic
พฤ. 5/710:00 am
LIS
- HOU
2 stops18h 26m
Virgin Atlantic
Deal found 4/7![Virgin Atlantic logo]()
$840
This KLM deal was found by Cheapflights users on 4/6. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ส. 5/93:25 pm
IAH
- LIS
1 stop25h 25m
KLM
ศ. 5/157:45 pm
LIS
- IAH
1 stop23h 35m
KLM
Deal found 4/6![KLM logo]()
$874
This British Airways deal was found by Cheapflights users on 4/5. 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.
ศ. 5/13:25 pm
IAH
- LIS
1 stop25h 45m
Multiple Airlines
พฤ. 5/146:35 am
LIS
- IAH
2 stops18h 44m
Multiple Airlines
Deal found 4/5![Multiple Airlines logo]()
$883
This British Airways deal was found by Cheapflights users on 4/7. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ส. 5/99:05 pm
IAH
- LIS
1 stop20h 05m
British Airways
ส. 5/166:55 pm
LIS
- IAH
1 stop24h 25m
British Airways
Deal found 4/7![British Airways logo]()
$893
This Iberia deal was found by Cheapflights users on 4/5. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
จ. 8/246:50 pm
IAH
- FNC
2 stops36h 05m
Iberia
พ. 9/21:35 pm
FNC
- IAH
2 stops40h 24m
Iberia
Deal found 4/5![Iberia logo]()
$1,055
This United Airlines deal was found by Cheapflights users on 4/9. 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.
พ. 8/1210:08 pm
IAH
- FNC
2 stops26h 57m
United Airlines
พ. 8/269:40 am
FNC
- IAH
1 stop13h 05m
United Airlines
Deal found 4/9![United Airlines logo]()
$1,093
This American Airlines deal was found by Cheapflights users on 4/9. 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.
อ. 9/84:15 pm
HOU
- OPO
2 stops17h 45m
American Airlines
อ. 9/2212:25 pm
OPO
- HOU
2 stops17h 28m
American Airlines
Deal found 4/9![American Airlines logo]()
$1,222
This KAYAK deal was found by Cheapflights users on 4/5. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
จ. 8/246:17 pm
IAH
- FNC
1 stop30h 48m
Lufthansa
พ. 9/29:40 am
FNC
- IAH
1 stop13h 05m
Lufthansa
Deal found 4/5![Lufthansa logo]()
$1,248
This Turkish Airlines deal was found by Cheapflights users on 4/8. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
จ. 4/272:30 pm
IAH
- LIS
1 stop27h 05m
Turkish Airlines
พ. 5/65:55 am
LIS
- IAH
1 stop19h 15m
Turkish Airlines
Deal found 4/8![Turkish Airlines logo]()
$827
This Delta deal was found by Cheapflights users on 4/10. 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.
อ. 5/55:00 pm
IAH
- LIS
2 stops18h 50m
Delta
อ. 5/125:00 am
LIS
- IAH
2 stops21h 00m
Delta
Deal found 4/10![Delta logo]()
$834
This Finnair deal was found by Cheapflights users on 4/6. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
จ. 5/44:59 pm
IAH
- LIS
2 stops24h 26m
Finnair
จ. 5/114:35 pm
LIS
- IAH
2 stops32h 29m
Finnair
Deal found 4/6![Finnair logo]()
$838
This Delta deal was found by Cheapflights users on 4/9. 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.
พ. 4/2212:25 pm
IAH
- LIS
2 stops20h 30m
Delta
พ. 5/65:00 am
LIS
- IAH
2 stops18h 51m
Delta
Deal found 4/9![Delta logo]()
$839
This British Airways deal was found by Cheapflights users on 4/9. 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.
อ. 9/296:19 pm
HOU
- OPO
2 stops19h 11m
British Airways
ส. 10/1012:25 pm
OPO
- HOU
2 stops17h 28m
British Airways
Deal found 4/9![British Airways logo]()
$925
This Turkish Airlines deal was found by Cheapflights users on 4/8. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ศ. 9/259:05 pm
IAH
- OPO
1 stop36h 35m
Turkish Airlines
ศ. 10/210:40 am
OPO
- IAH
1 stop38h 30m
Turkish Airlines
Deal found 4/8![Turkish Airlines logo]()
$843
This British Airways deal was found by Cheapflights users on 4/7. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
พฤ. 9/173:40 pm
IAH
- LIS
1 stop25h 25m
Multiple Airlines
พฤ. 9/246:35 am
LIS
- IAH
2 stops18h 28m
Multiple Airlines
Deal found 4/7![Multiple Airlines logo]()
$938
This KLM deal was found by Cheapflights users on 4/8. 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.
จ. 5/43:50 pm
IAH
- OPO
1 stop17h 35m
KLM
จ. 5/117:00 pm
OPO
- IAH
1 stop24h 20m
KLM
Deal found 4/8![KLM logo]()
$963
This Delta deal was found by Cheapflights users on 4/7. 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.
พ. 5/62:20 pm
IAH
- OPO
2 stops19h 05m
Delta
พฤ. 5/145:00 am
OPO
- IAH
1 stop14h 20m
Delta
Deal found 4/7![Delta logo]()
$872
This KLM deal was found by Cheapflights users on 4/6. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
พฤ. 4/303:25 pm
IAH
- OPO
1 stop18h 05m
KLM
พ. 5/1311:45 am
OPO
- IAH
2 stops18h 09m
KLM
Deal found 4/6![KLM logo]()
$977
This British Airways deal was found by Cheapflights users on 4/10. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
อ. 8/44:15 pm
HOU
- LIS
2 stops17h 20m
British Airways
พ. 8/197:20 am
LIS
- HOU
2 stops18h 31m
British Airways
Deal found 4/10![British Airways logo]()
$998
This Delta deal was found by Cheapflights users on 4/8. 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.
พฤ. 5/73:25 pm
IAH
- LIS
2 stops20h 25m
Delta
พฤ. 5/145:00 am
LIS
- IAH
2 stops19h 27m
Delta
Deal found 4/8![Delta logo]()
$874
This United Airlines deal was found by Cheapflights users on 4/5. 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.
จ. 8/2410:08 pm
IAH
- FNC
2 stops26h 57m
United Airlines
พ. 9/29:40 am
FNC
- IAH
1 stop13h 05m
United Airlines
Deal found 4/5![United Airlines logo]()
$1,178
This Delta deal was found by Cheapflights users on 4/10. 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.
ศ. 5/86:00 am
HOU
- LIS
2 stops22h 55m
Delta
ศ. 5/155:00 am
LIS
- HOU
2 stops23h 26m
Delta
Deal found 4/10![Delta logo]()
$879
This Mytrip deal was found by Cheapflights users on 4/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
อา. 6/78:28 am
IAH
- FNC
3 stops21h 57m
Multiple Airlines
พฤ. 6/116:05 am
FNC
- IAH
3 stops23h 24m
Multiple Airlines
Deal found 4/10![Multiple Airlines logo]()
$1,198
This Delta deal was found by Cheapflights users on 4/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
จ. 5/44:59 pm
IAH
- LIS
2 stops19h 46m
Delta
จ. 5/1111:55 am
LIS
- IAH
2 stops17h 59m
Delta
Deal found 4/6![Delta logo]()
$889
This British Airways deal was found by Cheapflights users on 4/6. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
อา. 7/199:05 pm
IAH
- FNC
1 stop32h 25m
British Airways
อ. 7/287:35 pm
FNC
- IAH
1 stop23h 50m
British Airways
Deal found 4/6![British Airways logo]()
$1,243
This American Airlines deal was found by Cheapflights users on 4/5. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
จ. 8/246:50 pm
IAH
- FNC
2 stops36h 05m
Multiple Airlines
พ. 9/21:35 pm
FNC
- IAH
3 stops28h 59m
Multiple Airlines
Deal found 4/5![Multiple Airlines logo]()
$1,309
This Delta deal was found by Cheapflights users on 4/10. 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.
อ. 4/285:00 pm
IAH
- OPO
2 stops16h 25m
Delta
อา. 5/35:00 am
OPO
- IAH
1 stop14h 20m
Delta
Deal found 4/10![Delta logo]()
$913
Last-minute flights from Houston to PortugalDiscover last-minute flight deals from Houston to Portugal. Data last updated เมษายน 10, 2026 and is based on user searches.
Discover last-minute flight deals from Houston to Portugal. Data last updated เมษายน 10, 2026 and is based on user searches.
This Gotogate deal was found by Cheapflights users on 4/5. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
จ. 4/209:05 pm
IAH
- LIS
1 stop20h 30m
Turkish Airlines
อ. 5/55:55 am
LIS
- IAH
1 stop19h 15m
Turkish Airlines
Deal found 4/5![Turkish Airlines logo]()
$673
This FlightHub deal was found by Cheapflights users on 4/6. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
พ. 4/222:30 pm
IAH
- LIS
1 stop19h 05m
Turkish Airlines
พ. 5/65:55 am
LIS
- IAH
1 stop19h 15m
Turkish Airlines
Deal found 4/6![Turkish Airlines logo]()
$722
This FlightHub deal was found by Cheapflights users on 4/6. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
พ. 4/222:30 pm
IAH
- LIS
1 stop19h 05m
Turkish Airlines
อ. 5/265:55 am
LIS
- IAH
1 stop19h 15m
Turkish Airlines
Deal found 4/6![Turkish Airlines logo]()
$726
This FlightHub deal was found by Cheapflights users on 4/5. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
จ. 4/272:30 pm
IAH
- LIS
1 stop19h 05m
Turkish Airlines
พ. 5/610:55 am
LIS
- IAH
1 stop38h 15m
Turkish Airlines
Deal found 4/5![Turkish Airlines logo]()
$633
This Turkish Airlines deal was found by Cheapflights users on 4/8. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
จ. 4/272:30 pm
IAH
- OPO
1 stop19h 20m
Turkish Airlines
พ. 5/610:45 am
OPO
- IAH
1 stop38h 25m
Turkish Airlines
Deal found 4/8![Turkish Airlines logo]()
$681
This Kiwi.com deal was found by Cheapflights users on 4/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
จ. 4/272:30 pm
IAH
- LIS
1 stop19h 05m
Turkish Airlines
ศ. 5/85:55 am
LIS
- IAH
1 stop19h 15m
Turkish Airlines
Deal found 4/6![Turkish Airlines logo]()
$699
This FlightHub deal was found by Cheapflights users on 4/6. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
อ. 4/289:05 pm
IAH
- LIS
1 stop20h 15m
Turkish Airlines
อ. 5/125:55 am
LIS
- IAH
1 stop19h 15m
Turkish Airlines
Deal found 4/6![Turkish Airlines logo]()
$636
This oojo deal was found by Cheapflights users on 4/6. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
อ. 4/289:05 pm
IAH
- LIS
1 stop20h 15m
Turkish Airlines
จ. 5/45:55 am
LIS
- IAH
1 stop19h 15m
Turkish Airlines
Deal found 4/6![Turkish Airlines logo]()
$711
This Justfly.com deal was found by Cheapflights users on 4/6. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
อ. 4/289:05 pm
IAH
- LIS
1 stop20h 15m
Turkish Airlines
พ. 5/135:55 am
LIS
- IAH
1 stop19h 15m
Turkish Airlines
Deal found 4/6![Turkish Airlines logo]()
$718
This oojo deal was found by Cheapflights users on 4/10. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
อ. 4/289:05 pm
IAH
- OPO
1 stop30h 55m
Turkish Airlines
อา. 5/310:45 am
OPO
- IAH
1 stop32h 00m
Turkish Airlines
Deal found 4/10![Turkish Airlines logo]()
$720
This KAYAK deal was found by Cheapflights users on 4/6. 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.
อ. 4/289:05 pm
IAH
- OPO
1 stop30h 55m
Turkish Airlines
อ. 5/2610:40 am
OPO
- IAH
1 stop38h 30m
Turkish Airlines
Deal found 4/6![Turkish Airlines logo]()
$724
This Kiwi.com deal was found by Cheapflights users on 4/8. 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.
พ. 4/292:30 pm
IAH
- OPO
1 stop37h 10m
Turkish Airlines
พ. 5/2710:45 am
OPO
- IAH
1 stop38h 25m
Turkish Airlines
Deal found 4/8![Turkish Airlines logo]()
$688
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 เมษายน 10, 2026.
Search for one-way flight options from Houston to Portugal. Find affordable one-way fares based on user searches. Data last updated เมษายน 10, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/7. 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.
ส. 5/94:08 pm
IAH
- LIS
3 stops46h 57m
Multiple Airlines
Deal found 4/7![Multiple Airlines logo]()
$386
This Kiwi.com deal was found by Cheapflights users on 4/7. 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.
ส. 5/94:08 pm
IAH
- OPO
3 stops46h 32m
Multiple Airlines
Deal found 4/7![Multiple Airlines logo]()
$386
This Kiwi.com deal was found by Cheapflights users on 4/10. 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.
อ. 7/215:45 am
IAH
- LIS
3 stops43h 05m
Multiple Airlines
Deal found 4/10![Multiple Airlines logo]()
$399
This Kiwi.com deal was found by Cheapflights users on 4/8. 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.
ส. 5/2311:06 am
IAH
- LIS
2 stops28h 49m
Multiple Airlines
Deal found 4/8![Multiple Airlines logo]()
$405
This Kiwi.com deal was found by Cheapflights users on 4/7. 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.
จ. 6/82:51 pm
IAH
- LIS
2 stops48h 54m
Multiple Airlines
Deal found 4/7![Multiple Airlines logo]()
$406
This Kiwi.com deal was found by Cheapflights users on 4/7. 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.
อา. 5/312:51 pm
IAH
- LIS
3 stops57h 59m
Multiple Airlines
Deal found 4/7![Multiple Airlines logo]()
$413
This Kiwi.com deal was found by Cheapflights users on 4/7. 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.
พ. 6/108:55 pm
IAH
- LIS
3 stops43h 40m
Multiple Airlines
Deal found 4/7![Multiple Airlines logo]()
$414
This Kiwi.com deal was found by Cheapflights users on 4/5. 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.
ส. 8/19:52 pm
IAH
- LIS
3 stops42h 33m
Multiple Airlines
Deal found 4/5![Multiple Airlines logo]()
$418
This oojo deal was found by Cheapflights users on 4/6. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
อ. 7/213:30 pm
IAH
- LIS
1 stop17h 00m
British Airways
Deal found 4/6![British Airways logo]()
$419
This deal was found by Cheapflights users on 4/7. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
พ. 9/309:05 pm
IAH
- LIS
1 stop14h 50m
British Airways
Deal found 4/7![British Airways logo]()
$420
This Kiwi.com deal was found by Cheapflights users on 4/5. 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.
จ. 5/118:50 pm
IAH
- OPO
3 stops39h 45m
Multiple Airlines
Deal found 4/5![Multiple Airlines logo]()
$429
This Delta deal was found by Cheapflights users on 4/10. 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.
อ. 7/215:14 pm
HOU
- LIS
2 stops18h 36m
Delta
Deal found 4/10![Delta logo]()
$432
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 เมษายน 10, 2026.
Round-trip from | $633 (FlightHub) |
|---|---|
One-way from | $386 (Kiwi.com) |
Popular in | June |
Cheapest in | April |
Average price | $636 |
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 2,558,603 searches. Data last updated เมษายน 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
HoustonPorto
IAH - OPO
IAHOPO
Houston George Bush Intcntl
อ. 9/15
9:05 pm-10:00 am
1 stop30h 55m
Porto
พฤ. 9/24
4:40 pm-12:45 pm
1 stop26h 05m
$691
HoustonLisbon
IAH - LIS
IAHLIS
Houston George Bush Intcntl
จ. 4/20
4:59 pm-11:25 pm
2 stops24h 26m
Lisbon Humberto Delgado
อ. 5/5
6:35 am-11:48 pm
2 stops23h 13m
$787
HoustonLisbon
HOU - LIS
HOULIS
Houston Hobby
อ. 4/21
1:31 pm-10:45 am
2 stops15h 14m
Lisbon Humberto Delgado
พฤ. 5/7
10:00 am-10:26 pm
2 stops18h 26m
$801
HoustonLisbon
IAH - LIS
IAHLIS
Houston George Bush Intcntl
จ. 4/27
2:30 pm-11:35 pm
1 stop27h 05m
Lisbon Humberto Delgado
พ. 5/6
5:55 am-7:10 pm
1 stop19h 15m
$827
HoustonLisbon
IAH - LIS
IAHLIS
Houston George Bush Intcntl
อ. 5/5
5:00 pm-5:50 pm
2 stops18h 50m
Lisbon Humberto Delgado
อ. 5/12
5:00 am-8:00 pm
2 stops21h 00m
$834
HoustonLisbon
IAH - LIS
IAHLIS
Houston George Bush Intcntl
จ. 5/4
4:59 pm-11:25 pm
2 stops24h 26m
Lisbon Humberto Delgado
จ. 5/11
4:35 pm-7:04 pm
2 stops32h 29m
$838
HoustonLisbon
IAH - LIS
IAHLIS
Houston George Bush Intcntl
พ. 4/22
12:25 pm-2:55 pm
2 stops20h 30m
Lisbon Humberto Delgado
พ. 5/6
5:00 am-5:51 pm
2 stops18h 51m
$839
HoustonLisbon
HOU - LIS
HOULIS
Houston Hobby
พ. 4/22
6:00 am-10:45 am
2 stops22h 45m
Lisbon Humberto Delgado
พฤ. 5/7
10:00 am-10:26 pm
2 stops18h 26m
$840
HoustonPorto
IAH - OPO
IAHOPO
Houston George Bush Intcntl
ศ. 9/25
9:05 pm-3:40 pm
1 stop36h 35m
Porto
ศ. 10/2
10:40 am-7:10 pm
1 stop38h 30m
$843
HoustonPorto
IAH - OPO
IAHOPO
Houston George Bush Intcntl
พ. 5/6
2:20 pm-3:25 pm
2 stops19h 05m
Porto
พฤ. 5/14
5:00 am-1:20 pm
1 stop14h 20m
$872
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Houston to Portugal
Have a flexible travel schedule? Discover the best time to fly to Portugal from Houston with our price prediction graph.
IAH-LIS
IAH-OPO
HOU-LIS
IAH-FNC
HOU-OPO
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Houston to Portugal
HO1-PT0
IAH-LIS
IAH-OPO
HOU-LIS
IAH-FNC
What is the cheapest month to book a flight from Houston to Portugal?
Currently, April is the cheapest month in which you can book a flight from Houston to Portugal (average of $426). Flying from Houston to Portugal in June is currently the most expensive (average of $1,083). 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 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 เมษายน 10, 2026.
Get a feel of what it's like to fly with Delta,Air France, andUnited Airlines 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.
Overall
7.9
Food
7.2
Comfort
7.9
Entertainment
7.8
Crew
8.5
Boarding
8.1
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Overall
7.9
Food
7.2
Comfort
7.9
Entertainment
7.8
Crew
8.5
Boarding
8.1
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Overall
7.9
Food
7.2
Comfort
7.9
Entertainment
7.8
Crew
8.5
Boarding
8.1
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Overall
7.9
Food
7.2
Comfort
7.9
Entertainment
7.8
Crew
8.5
Boarding
8.1
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Overall
7.9
Food
7.2
Comfort
7.9
Entertainment
7.8
Crew
8.5
Boarding
8.1
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Overall
7.9
Food
7.2
Comfort
7.9
Entertainment
7.8
Crew
8.5
Boarding
8.1
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
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 เมษายน 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 2,558,603 searches. Data last updated เมษายน 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$466 | Average$863 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$476 | Average$931 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$540 | Average$851 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$561 | Average$923 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$581 | Average$966 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$621 | Average$744 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$646 | Average$965 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$831 | Average$1,404 | FlexibilityNo cancel fee | On-time76% |