$284+ Cheap flights from Houston to Portugal
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/18. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — LIS
Sep 6 — Sep 131
Round-trip
1 adult, Economy
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Find cheap flights from Houston to Portugal with Cheapflights
1. Tell us where you want to go
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Cheapest flights from Houston to PortugalExplore the most affordable flight options available from Houston to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 7, 2026.
Explore the most affordable flight options available from Houston to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 7, 2026.
This Expedia deal was found by Cheapflights users on 8/6. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/811:50 am -
2 stops19h 00m
Fri 11/136:00 am -
2 stops24h 30m
Deal found 8/6![Multiple Airlines logo]()
$701
This Expedia deal was found by Cheapflights users on 8/6. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/13:30 pm -
1 stop11h 50m
Wed 12/95:00 am -
1 stop15h 00m
Deal found 8/6![Multiple Airlines logo]()
$705
This Gotogate deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1910:00 am -
1 stop17h 20m
Fri 11/65:00 am -
1 stop15h 00m
Deal found 8/2![Multiple Airlines logo]()
$706
This United Airlines deal was found by Cheapflights users on 8/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/711:00 am -
1 stop16h 30m
Fri 12/116:00 am -
1 stop18h 15m
Deal found 8/6![United Airlines logo]()
$707
This KLM deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” 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.
Sun 11/87:10 pm -
1 stop20h 50m
Fri 11/135:00 am -
1 stop14h 05m
Deal found 8/3![KLM logo]()
$708
This Expedia deal was found by Cheapflights users on 8/6. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/84:10 pm -
1 stop13h 35m
Fri 11/136:00 am -
2 stops19h 10m
Deal found 8/6![Lufthansa logo]()
$710
This United Airlines deal was found by Cheapflights users on 8/5. 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.
Sun 11/86:00 am -
1 stop21h 30m
Fri 11/136:00 am -
2 stops21h 27m
Deal found 8/5![United Airlines logo]()
$717
This Orbitz deal was found by Cheapflights users on 8/6. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/2411:50 am -
2 stops18h 15m
Mon 12/77:20 pm -
2 stops32h 14m
Deal found 8/6![Multiple Airlines logo]()
$719
This United Airlines deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/27:59 pm -
2 stops31h 31m
Fri 11/66:00 am -
2 stops21h 27m
Deal found 8/2![United Airlines logo]()
$721
This United Airlines deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1111:50 am -
1 stop13h 05m
Thu 11/195:00 am -
1 stop19h 15m
Deal found 8/3![United Airlines logo]()
$722
This Delta deal was found by Cheapflights users on 8/6. 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.
Sun 11/86:09 am -
2 stops20h 56m
Fri 11/135:00 am -
2 stops24h 13m
Deal found 8/6![Delta logo]()
$723
This United Airlines deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/107:30 am -
1 stop18h 40m
Wed 11/185:00 am -
1 stop19h 15m
Deal found 8/4![United Airlines logo]()
$724
Best flights from Houston to PortugalDiscover carefully curated flight deals from Houston to Portugal that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 7, 2026.
Discover carefully curated flight deals from Houston to Portugal that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 7, 2026.
This United Airlines deal was found by Cheapflights users on 8/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/711:00 am -
1 stop16h 30m
Fri 12/116:00 am -
1 stop18h 15m
Deal found 8/6![United Airlines logo]()
$707
This KLM deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” 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.
Sun 11/87:10 pm -
1 stop20h 50m
Fri 11/135:00 am -
1 stop14h 05m
Deal found 8/3![KLM logo]()
$708
This Delta deal was found by Cheapflights users on 8/6. 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.
Sun 11/86:09 am -
2 stops20h 56m
Fri 11/135:00 am -
2 stops24h 13m
Deal found 8/6![Delta logo]()
$723
This Turkish Airlines deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/159:15 pm -
1 stop36h 25m
Wed 9/234:40 pm -
1 stop32h 40m
Deal found 8/4![Turkish Airlines logo]()
$837
This United deal was found by Cheapflights users on 8/6. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/710:00 am -
1 stop15h 00m
Fri 10/166:20 am -
1 stop16h 20m
Deal found 8/6![Multiple Airlines logo]()
$866
This Flysmarter deal was found by Cheapflights users on 8/5. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/61:28 pm -
2 stops20h 57m
Mon 12/215:15 pm -
2 stops31h 30m
Deal found 8/5![British Airways logo]()
$873
This Virgin Atlantic deal was found by Cheapflights users on 8/6. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/56:09 am -
2 stops20h 51m
Sun 11/1511:15 am -
2 stops17h 58m
Deal found 8/6![Virgin Atlantic logo]()
$894
This TAP AIR PORTUGAL deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” 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.
Thu 11/121:46 pm -
2 stops17h 44m
Mon 11/166:10 pm -
2 stops46h 44m
Deal found 8/4![TAP AIR PORTUGAL logo]()
$1,152
This United Airlines deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” 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 11/87:20 am -
2 stops20h 10m
Fri 11/136:00 am -
2 stops21h 27m
Deal found 8/4![United Airlines logo]()
$722
This Delta deal was found by Cheapflights users on 8/5. 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 11/105:30 pm -
2 stops18h 00m
Wed 11/185:00 am -
2 stops24h 13m
Deal found 8/5![Delta logo]()
$739
This United Airlines deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/28:16 pm -
1 stop31h 14m
Fri 11/66:00 am -
2 stops21h 27m
Deal found 8/2![United Airlines logo]()
$722
This KLM deal was found by Cheapflights users on 8/6. 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.
Tue 10/2012:03 pm -
2 stops16h 27m
Tue 10/275:00 am -
1 stop14h 05m
Deal found 8/6![KLM logo]()
$823
This Delta deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” 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 11/2310:25 am -
2 stops16h 35m
Tue 12/15:00 am -
2 stops24h 13m
Deal found 8/4![Delta logo]()
$770
This Flysmarter deal was found by Cheapflights users on 8/5. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/612:16 pm -
2 stops22h 09m
Mon 12/215:15 pm -
2 stops28h 32m
Deal found 8/5![British Airways logo]()
$876
This Turkish Airlines deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/19:15 pm -
1 stop20h 15m
Sun 9/64:40 pm -
1 stop32h 40m
Deal found 8/2![Turkish Airlines logo]()
$897
This United Airlines deal was found by Cheapflights users on 8/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/711:00 am -
2 stops17h 40m
Fri 12/115:00 am -
1 stop15h 00m
Deal found 8/6![United Airlines logo]()
$770
This Delta deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/136:00 am -
2 stops21h 05m
Thu 12/35:00 am -
2 stops24h 13m
Deal found 8/2![Delta logo]()
$773
This Iberia deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” 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.
Mon 9/214:47 pm -
2 stops38h 08m
Tue 10/67:35 pm -
2 stops30h 46m
Deal found 8/4![Multiple Airlines logo]()
$953
This KLM deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” 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 10/163:55 pm -
1 stop17h 30m
Tue 10/205:00 am -
1 stop14h 20m
Deal found 8/2![KLM logo]()
$867
This British Airways deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” 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 10/119:10 pm -
1 stop14h 35m
Sat 10/176:55 pm -
1 stop24h 30m
Deal found 8/2![British Airways logo]()
$892
This Delta deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/216:09 am -
2 stops19h 51m
Wed 10/2810:00 am -
2 stops18h 03m
Deal found 8/2![Delta logo]()
$781
This United Airlines deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/306:25 pm -
1 stop31h 45m
Sun 2/1410:50 am -
1 stop30h 03m
Deal found 8/4![United Airlines logo]()
$782
This Delta deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/274:58 pm -
2 stops18h 52m
Fri 10/95:00 am -
1 stop14h 20m
Deal found 8/3![Delta logo]()
$790
This KLM deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” 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 11/275:00 pm -
2 stops34h 20m
Fri 1/156:00 pm -
2 stops29h 40m
Deal found 8/2![KLM logo]()
$959
This United Airlines deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/237:20 am -
1 stop21h 45m
Wed 10/76:45 am -
1 stop36h 50m
Deal found 8/3![United Airlines logo]()
$808
This British Airways deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” 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.
Tue 9/296:34 pm -
2 stops18h 56m
Sat 10/1010:40 am -
2 stops19h 09m
Deal found 8/2![British Airways logo]()
$1,044
This Delta deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/136:00 am -
2 stops20h 00m
Tue 11/175:00 am -
2 stops24h 13m
Deal found 8/4![Delta logo]()
$790
This Delta deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/2311:00 am -
2 stops15h 50m
Fri 10/25:00 am -
2 stops23h 39m
Deal found 8/2![Delta logo]()
$799
This KLM deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” 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.
Sun 11/297:10 pm -
2 stops56h 25m
Sun 1/1710:10 am -
2 stops36h 40m
Deal found 8/2![KLM logo]()
$1,066
This TAP AIR PORTUGAL deal was found by Cheapflights users on 8/6. 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 TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2210:35 am -
3 stops26h 00m
Wed 9/3012:40 pm -
2 stops24h 25m
Deal found 8/6![Multiple Airlines logo]()
$1,290
Last-minute flights from Houston to PortugalDiscover last-minute flight deals from Houston to Portugal. Data last updated August 7, 2026 and is based on user searches.
Discover last-minute flight deals from Houston to Portugal. Data last updated August 7, 2026 and is based on user searches.
This Gotogate deal was found by Cheapflights users on 8/6. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2112:00 pm -
1 stop17h 00m
Tue 10/611:25 am -
1 stop14h 27m
Deal found 8/6![Multiple Airlines logo]()
$768
This Delta deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/213:55 pm -
1 stop13h 20m
Mon 10/511:55 am -
1 stop31h 25m
Deal found 8/4![Delta logo]()
$786
This United Airlines deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/219:30 am -
2 stops19h 00m
Thu 10/85:05 am -
1 stop18h 45m
Deal found 8/3![United Airlines logo]()
$789
This Gotogate deal was found by Cheapflights users on 8/7. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2110:00 am -
2 stops19h 00m
Mon 9/287:25 am -
1 stop36h 10m
Deal found 8/7![Multiple Airlines logo]()
$791
This Delta deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2111:00 am -
2 stops18h 15m
Wed 10/75:00 am -
2 stops24h 03m
Deal found 8/3![Delta logo]()
$799
This Gotogate deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/227:20 am -
1 stop21h 45m
Tue 9/2911:25 am -
1 stop14h 27m
Deal found 8/3![Multiple Airlines logo]()
$781
This Gotogate deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/227:20 am -
1 stop21h 45m
Wed 9/3011:25 am -
1 stop14h 27m
Deal found 8/4![Multiple Airlines logo]()
$783
This Delta deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/223:55 pm -
1 stop19h 55m
Wed 9/305:00 am -
1 stop14h 20m
Deal found 8/4![Delta logo]()
$785
This Orbitz deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” 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 9/221:56 pm -
2 stops22h 29m
Wed 9/308:45 pm -
2 stops33h 05m
Deal found 8/4![Iberia logo]()
$818
This United Airlines deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/237:20 am -
1 stop21h 45m
Thu 10/85:05 am -
1 stop18h 45m
Deal found 8/3![United Airlines logo]()
$788
This Delta deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/233:20 pm -
2 stops17h 35m
Wed 9/305:00 am -
1 stop14h 20m
Deal found 8/4![Delta logo]()
$790
This United Airlines deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/304:40 pm -
1 stop24h 05m
Thu 10/85:05 am -
1 stop18h 45m
Deal found 8/3![United Airlines logo]()
$787
One-way flights from Houston to PortugalSearch for one-way flight options from Houston to Portugal. Find affordable one-way fares based on user searches. Data last updated August 7, 2026.
Search for one-way flight options from Houston to Portugal. Find affordable one-way fares based on user searches. Data last updated August 7, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/7. 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 10/185:09 pm -
2 stops47h 51m
Deal found 8/7![Multiple Airlines logo]()
$284
This Kiwi.com deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2012:21 pm -
3 stops26h 24m
Deal found 8/4![Multiple Airlines logo]()
$299
This Kiwi.com deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1912:21 pm -
2 stops28h 39m
Deal found 8/4![Multiple Airlines logo]()
$311
This Kiwi.com deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/135:09 pm -
3 stops48h 41m
Deal found 8/4![Multiple Airlines logo]()
$321
This Kiwi.com deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/118:44 pm -
3 stops44h 36m
Deal found 8/4![Multiple Airlines logo]()
$330
This Kiwi.com deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/145:09 pm -
2 stops56h 36m
Deal found 8/4![Multiple Airlines logo]()
$334
This Kiwi.com deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/145:09 pm -
2 stops44h 51m
Deal found 8/4![Multiple Airlines logo]()
$335
This Kiwi.com deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” 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 9/222:18 pm -
3 stops46h 27m
Deal found 8/3![Multiple Airlines logo]()
$336
This Kiwi.com deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” 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 9/152:18 pm -
3 stops46h 27m
Deal found 8/2![Multiple Airlines logo]()
$337
This American Airlines deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” 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 12/910:13 am -
2 stops15h 27m
Deal found 8/3![American Airlines logo]()
$360
This Delta deal was found by Cheapflights users on 8/5. 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.
Sat 1/910:05 am -
2 stops15h 55m
Deal found 8/5![Delta logo]()
$410
This Booking.com deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/113:35 pm -
1 stop18h 05m
Deal found 8/4![Lufthansa logo]()
$460
Find flight deals from Houston to Portugal
Keep the following information in mind while searching for Houston to Portugal flight deals. Data was last updated August 7, 2026.
Round-trip from | $701 (Expedia) |
|---|---|
One-way from | $299 (Kiwi.com) |
Popular in | June |
Cheapest in | April |
Average price | $1,121 |
Cheapflights Fare Finder
Customize your flight search to find flights from Houston to Portugal that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 7, 2026.
Use the filters below to find and compare flights from Houston to Portugal that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
HoustonPorto
IAH Houston George Bush Intcntl - OPO Porto
IAHOPO
Houston George Bush Intcntl
Mon 12/7
11:00 am-9:30 am
1 stop16h 30m
Porto
Fri 12/11
6:00 am-6:15 pm
1 stop18h 15m
$707
HoustonPorto
IAH Houston George Bush Intcntl - OPO Porto
IAHOPO
Houston George Bush Intcntl
Sun 11/8
7:10 pm-10:00 pm
1 stop20h 50m
Porto
Fri 11/13
5:00 am-1:05 pm
1 stop14h 05m
$708
HoustonPorto
IAH Houston George Bush Intcntl - OPO Porto
IAHOPO
Houston George Bush Intcntl
Sun 11/8
7:20 am-9:30 am
2 stops20h 10m
Porto
Fri 11/13
6:00 am-9:27 pm
2 stops21h 27m
$722
HoustonPorto
IAH Houston George Bush Intcntl - OPO Porto
IAHOPO
Houston George Bush Intcntl
Mon 11/2
8:16 pm-9:30 am
1 stop31h 14m
Porto
Fri 11/6
6:00 am-9:27 pm
2 stops21h 27m
$722
HoustonPorto
HOU Houston Hobby - OPO Porto
HOUOPO
Houston Hobby
Sun 11/8
6:09 am-9:05 am
2 stops20h 56m
Porto
Fri 11/13
5:00 am-11:13 pm
2 stops24h 13m
$723
HoustonLisbon
HOU Houston Hobby - LIS Lisbon Humberto Delgado
HOULIS
Houston Hobby
Tue 11/10
5:30 pm-5:30 pm
2 stops18h 00m
Lisbon Humberto Delgado
Wed 11/18
5:00 am-11:13 pm
2 stops24h 13m
$739
HoustonLisbon
HOU Houston Hobby - LIS Lisbon Humberto Delgado
HOULIS
Houston Hobby
Mon 11/23
10:25 am-9:00 am
2 stops16h 35m
Lisbon Humberto Delgado
Tue 12/1
5:00 am-11:13 pm
2 stops24h 13m
$770
HoustonLisbon
IAH Houston George Bush Intcntl - LIS Lisbon Humberto Delgado
IAHLIS
Houston George Bush Intcntl
Mon 12/7
11:00 am-10:40 am
2 stops17h 40m
Lisbon Humberto Delgado
Fri 12/11
5:00 am-2:00 pm
1 stop15h 00m
$770
HoustonPorto
HOU Houston Hobby - OPO Porto
HOUOPO
Houston Hobby
Fri 11/13
6:00 am-9:05 am
2 stops21h 05m
Porto
Thu 12/3
5:00 am-11:13 pm
2 stops24h 13m
$773
HoustonLisbon
HOU Houston Hobby - LIS Lisbon Humberto Delgado
HOULIS
Houston Hobby
Wed 10/21
6:09 am-8:00 am
2 stops19h 51m
Lisbon Humberto Delgado
Wed 10/28
10:00 am-11:03 pm
2 stops18h 03m
$781
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
HOU-LIS
IAH-OPO
HOU-OPO
IAH-FNC
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Houston to Portugal
HO1-PT0
IAH-LIS
HOU-LIS
IAH-OPO
HOU-OPO
What is the cheapest month to book a flight from Houston to Portugal?
Currently, January is the cheapest month in which you can book a flight from Houston to Portugal (average of $682). Flying from Houston to Portugal in June is currently the most expensive (average of $1,349). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How far ahead should I book a flight from Houston to Portugal?
The best time to book flights from Houston to Portugal is 79 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Reviews of airlines servicing Portugal
Get insights into the airlines that provide service to Portugal. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Portugal. Reviews last updated August 7, 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.
Overall
7.8
Food
7.3
Comfort
7.7
Boarding
7.8
Crew
8.4
Entertainment
7.2
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
Overall
7.8
Food
7.3
Comfort
7.7
Boarding
7.8
Crew
8.4
Entertainment
7.2
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
Overall
7.8
Food
7.3
Comfort
7.7
Boarding
7.8
Crew
8.4
Entertainment
7.2
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
Overall
7.8
Food
7.3
Comfort
7.7
Boarding
7.8
Crew
8.4
Entertainment
7.2
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
Overall
7.8
Food
7.3
Comfort
7.7
Boarding
7.8
Crew
8.4
Entertainment
7.2
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
Overall
7.8
Food
7.3
Comfort
7.7
Boarding
7.8
Crew
8.4
Entertainment
7.2
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - 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 August 7, 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 August 7, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$476 | Average$957 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$512 | Average$772 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$529 | Average$1,135 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$534 | Average$882 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$559 | Average$846 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$575 | Average$1,096 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$621 | Average$731 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$646 | Average$870 | FlexibilityNo cancel fee | On-time67% |