$396+ Cheap flights from George Bush Intcntl (IAH) to Lisbon (LIS)
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 7/13. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — LIS
May 28 — Jun 41
Round-trip
1 adult, Economy
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Cheapest flights from George Bush Intcntl to LisbonExplore the most affordable flight options available from George Bush Intcntl to Lisbon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 28, 2026.
Explore the most affordable flight options available from George Bush Intcntl to Lisbon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 28, 2026.
This Finnair deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/109:50 pm
IAH
- LIS
1 stop13h 50m
Multiple Airlines
Wed 11/184:10 pm
LIS
- IAH
2 stops31h 47m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$764
This United Airlines deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1012:10 pm
IAH
- LIS
1 stop15h 40m
United Airlines
Wed 11/185:00 am
LIS
- IAH
1 stop19h 15m
United Airlines
Deal found 4/23![United Airlines logo]()
$767
This United Airlines deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” 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 11/115:05 pm
IAH
- LIS
1 stop11h 10m
United Airlines
Thu 11/195:00 am
LIS
- IAH
1 stop19h 15m
United Airlines
Deal found 4/27![United Airlines logo]()
$768
This United Airlines deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/212:10 pm
IAH
- LIS
1 stop15h 40m
United Airlines
Wed 11/1111:20 am
LIS
- IAH
2 stops31h 44m
United Airlines
Deal found 4/25![United Airlines logo]()
$769
This KLM deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/112:55 pm
IAH
- LIS
1 stop13h 05m
KLM
Mon 12/73:30 pm
LIS
- IAH
1 stop28h 00m
KLM
Deal found 4/23![KLM logo]()
$770
This United Airlines deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/17:40 am
IAH
- LIS
1 stop20h 35m
United Airlines
Wed 12/911:20 am
LIS
- IAH
2 stops32h 00m
United Airlines
Deal found 4/24![United Airlines logo]()
$771
This United Airlines deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/307:40 am
IAH
- LIS
2 stops18h 30m
United Airlines
Thu 1/145:00 am
LIS
- IAH
1 stop19h 15m
United Airlines
Deal found 4/27![United Airlines logo]()
$773
This British Airways deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/116:46 pm
IAH
- LIS
2 stops16h 54m
British Airways
Thu 11/1911:05 am
LIS
- IAH
1 stop16h 20m
British Airways
Deal found 4/23![British Airways logo]()
$774
This American Airlines deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1011:16 am
IAH
- LIS
2 stops15h 49m
American Airlines
Wed 11/1811:05 am
LIS
- IAH
2 stops19h 13m
American Airlines
Deal found 4/23![American Airlines logo]()
$781
This Delta deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” 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 11/101:15 pm
IAH
- LIS
2 stops19h 55m
Delta
Wed 11/185:00 am
LIS
- IAH
2 stops19h 17m
Delta
Deal found 4/27![Delta logo]()
$784
Best flights from George Bush Intcntl to LisbonDiscover carefully curated flight deals from George Bush Intcntl to Lisbon that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 28, 2026.
Discover carefully curated flight deals from George Bush Intcntl to Lisbon that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 28, 2026.
This Delta deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” 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 10/162:10 pm
IAH
- LIS
2 stops14h 35m
Delta
Sun 10/1811:55 am
LIS
- IAH
1 stop31h 20m
Delta
Deal found 4/27![Delta logo]()
$952
This United Airlines deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/177:20 am
IAH
- LIS
1 stop21h 45m
United Airlines
Fri 9/255:05 am
LIS
- IAH
1 stop18h 45m
United Airlines
Deal found 4/25![United Airlines logo]()
$967
This British Airways deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/123:30 pm
IAH
- LIS
1 stop25h 35m
British Airways
Sat 8/16:55 pm
LIS
- IAH
1 stop24h 30m
British Airways
Deal found 4/23![British Airways logo]()
$1,134
This KLM deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/143:25 pm
IAH
- LIS
1 stop25h 25m
KLM
Sun 5/173:35 pm
LIS
- IAH
1 stop27h 45m
KLM
Deal found 4/24![KLM logo]()
$1,189
This British Airways deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/169:05 pm
IAH
- LIS
1 stop20h 05m
Multiple Airlines
Sat 5/237:10 am
LIS
- IAH
2 stops18h 37m
Multiple Airlines
Deal found 4/26![Multiple Airlines logo]()
$1,240
This United Airlines deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” 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.
Thu 9/178:15 pm
IAH
- LIS
2 stops31h 05m
United Airlines
Sun 9/275:05 am
LIS
- IAH
2 stops25h 18m
United Airlines
Deal found 4/27![United Airlines logo]()
$1,045
This Delta deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” 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 7/114:00 pm
IAH
- LIS
1 stop34h 00m
Delta
Tue 7/285:35 am
LIS
- IAH
2 stops22h 09m
Delta
Deal found 4/26![Delta logo]()
$1,111
This United Airlines deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” 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 7/126:00 am
IAH
- LIS
1 stop20h 20m
United Airlines
Tue 7/281:00 pm
LIS
- IAH
2 stops32h 18m
United Airlines
Deal found 4/27![United Airlines logo]()
$1,092
This KLM deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” 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 5/183:25 pm
IAH
- LIS
1 stop21h 20m
KLM
Tue 5/265:00 am
LIS
- IAH
1 stop14h 20m
KLM
Deal found 4/27![KLM logo]()
$1,216
This United Airlines deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/2210:00 am
IAH
- LIS
1 stop17h 20m
United Airlines
Mon 7/2711:25 am
LIS
- IAH
2 stops33h 57m
United Airlines
Deal found 4/25![United Airlines logo]()
$1,156
This Delta deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/143:50 pm
IAH
- LIS
1 stop20h 00m
Delta
Sun 5/175:00 am
LIS
- IAH
2 stops21h 00m
Delta
Deal found 4/24![Delta logo]()
$1,272
This Delta deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” 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 6/155:00 pm
IAH
- LIS
1 stop18h 50m
Delta
Mon 6/225:00 am
LIS
- IAH
2 stops18h 43m
Delta
Deal found 4/26![Delta logo]()
$1,294
Last-minute flights from George Bush Intcntl to LisbonDiscover last-minute flight deals from George Bush Intcntl to Lisbon. Data last updated April 28, 2026 and is based on user searches.
Discover last-minute flight deals from George Bush Intcntl to Lisbon. Data last updated April 28, 2026 and is based on user searches.
This Air France deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/33:50 pm
IAH
- LIS
1 stop20h 00m
Multiple Airlines
Sun 5/105:00 am
LIS
- IAH
1 stop14h 20m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$1,004
This United Airlines deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” 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 5/31:36 pm
IAH
- LIS
1 stop12h 44m
United Airlines
Sun 5/105:05 am
LIS
- IAH
2 stops19h 37m
United Airlines
Deal found 4/27![United Airlines logo]()
$1,012
This Gotogate deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” 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 5/43:35 pm
IAH
- LIS
1 stop24h 40m
Lufthansa
Tue 5/1912:35 pm
LIS
- IAH
1 stop31h 00m
Lufthansa
Deal found 4/27![Lufthansa logo]()
$1,007
This United Airlines deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” 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 5/512:14 pm
IAH
- LIS
1 stop14h 06m
United Airlines
Tue 5/126:45 am
LIS
- IAH
1 stop17h 15m
United Airlines
Deal found 4/28![United Airlines logo]()
$1,008
This Delta deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” 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 5/52:59 pm
IAH
- LIS
2 stops20h 51m
Delta
Tue 5/125:00 am
LIS
- IAH
1 stop14h 20m
Delta
Deal found 4/27![Delta logo]()
$1,013
This British Airways deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/63:25 pm
IAH
- LIS
1 stop25h 50m
British Airways
Mon 5/186:45 pm
LIS
- IAH
1 stop24h 35m
British Airways
Deal found 4/23![British Airways logo]()
$868
This British Airways deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/63:25 pm
IAH
- LIS
1 stop25h 50m
British Airways
Sat 5/166:55 pm
LIS
- IAH
1 stop24h 25m
British Airways
Deal found 4/23![British Airways logo]()
$928
This Air France deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/63:50 pm
IAH
- LIS
1 stop13h 25m
Multiple Airlines
Mon 5/1111:55 am
LIS
- IAH
1 stop31h 25m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$1,009
This Gurufare deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/712:29 pm
IAH
- LIS
1 stop14h 36m
British Airways
Mon 5/186:45 pm
LIS
- IAH
1 stop24h 35m
British Airways
Deal found 4/23![British Airways logo]()
$964
This Virgin Atlantic deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” 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.
Tue 5/265:20 am
IAH
- LIS
2 stops23h 25m
Virgin Atlantic
Tue 6/212:45 pm
LIS
- IAH
2 stops17h 09m
Virgin Atlantic
Deal found 4/28![Virgin Atlantic logo]()
$1,001
This Mytrip deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/305:29 pm
IAH
- LIS
2 stops34h 06m
Multiple Airlines
Mon 6/811:35 am
LIS
- IAH
2 stops33h 26m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$976
One-way flights from George Bush Intcntl to LisbonSearch for one-way flight options from George Bush Intcntl to Lisbon. Find affordable one-way fares based on user searches. Data last updated April 28, 2026.
Search for one-way flight options from George Bush Intcntl to Lisbon. Find affordable one-way fares based on user searches. Data last updated April 28, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/135:45 am
IAH
- LIS
3 stops59h 40m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$396
This Kiwi.com deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” 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 9/267:34 pm
IAH
- LIS
3 stops39h 36m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$410
This Cheapflightsfares deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” 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.
Sun 9/209:05 pm
IAH
- LIS
1 stop20h 00m
British Airways
Deal found 4/26![British Airways logo]()
$413
This FlightHub deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” 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.
Sat 9/264:45 pm
IAH
- LIS
2 stops34h 35m
Air Canada
Deal found 4/27![Air Canada logo]()
$426
This Kiwi.com deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/266:00 am
IAH
- LIS
3 stops33h 45m
Multiple Airlines
Deal found 4/24![Multiple Airlines logo]()
$428
This Kiwi.com deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/148:37 pm
IAH
- LIS
2 stops40h 08m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$430
This United Airlines deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” 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 9/205:15 am
IAH
- LIS
2 stops23h 50m
United Airlines
Deal found 4/26![United Airlines logo]()
$431
This Kiwi.com deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/24:00 pm
IAH
- LIS
3 stops44h 45m
Multiple Airlines
Deal found 4/25![Multiple Airlines logo]()
$432
This Kiwi.com deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/176:50 am
IAH
- LIS
3 stops33h 15m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$438
This United Airlines deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” 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 9/268:11 pm
IAH
- LIS
1 stop30h 09m
United Airlines
Deal found 4/27![United Airlines logo]()
$440
Find flight deals from George Bush Intcntl to Lisbon
Discover tips and strategies to find the most affordable flight options for your journey from George Bush Intcntl (IAH) to Lisbon (LIS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated April 28, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $788 (FlightHub) |
One-way from | $396 (Kiwi.com) |
Popular in | June |
Cheapest in | November |
Average price | $740 |
Cheapflights Fare Finder
Customize your flight search to find flights from George Bush Intcntl to Lisbon 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 April 28, 2026.
Use the filters below to find and compare flights from Houston George Bush Intcntl Airport to Lisbon that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
HoustonLisbon
IAH - LIS
IAHLIS
Houston George Bush Intcntl
Fri 10/16
2:10 pm-10:45 am
2 stops14h 35m
Lisbon Humberto Delgado
Sun 10/18
11:55 am-1:15 pm
1 stop31h 20m
$952
HoustonLisbon
IAH - LIS
IAHLIS
Houston George Bush Intcntl
Thu 9/17
7:20 am-11:05 am
1 stop21h 45m
Lisbon Humberto Delgado
Fri 9/25
5:05 am-5:50 pm
1 stop18h 45m
$967
HoustonLisbon
IAH - LIS
IAHLIS
Houston George Bush Intcntl
Thu 9/17
8:15 pm-9:20 am
2 stops31h 05m
Lisbon Humberto Delgado
Sun 9/27
5:05 am-12:23 am
2 stops25h 18m
$1,045
HoustonLisbon
IAH - LIS
IAHLIS
Houston George Bush Intcntl
Sun 7/12
6:00 am-8:20 am
1 stop20h 20m
Lisbon Humberto Delgado
Tue 7/28
1:00 pm-3:18 pm
2 stops32h 18m
$1,092
HoustonLisbon
IAH - LIS
IAHLIS
Houston George Bush Intcntl
Sat 7/11
4:00 pm-8:00 am
1 stop34h 00m
Lisbon Humberto Delgado
Tue 7/28
5:35 am-9:44 pm
2 stops22h 09m
$1,111
HoustonLisbon
IAH - LIS
IAHLIS
Houston George Bush Intcntl
Sun 7/12
3:30 pm-11:05 pm
1 stop25h 35m
Lisbon Humberto Delgado
Sat 8/1
6:55 pm-1:25 pm
1 stop24h 30m
$1,134
HoustonLisbon
IAH - LIS
IAHLIS
Houston George Bush Intcntl
Wed 7/22
10:00 am-9:20 am
1 stop17h 20m
Lisbon Humberto Delgado
Mon 7/27
11:25 am-3:22 pm
2 stops33h 57m
$1,156
HoustonLisbon
IAH - LIS
IAHLIS
Houston George Bush Intcntl
Thu 5/14
3:25 pm-10:50 pm
1 stop25h 25m
Lisbon Humberto Delgado
Sun 5/17
3:35 pm-1:20 pm
1 stop27h 45m
$1,189
Quickest round-trip
HoustonLisbon
IAH - LIS
IAHLIS
Houston George Bush Intcntl
Mon 5/18
3:25 pm-6:45 pm
1 stop21h 20m
Lisbon Humberto Delgado
Tue 5/26
5:00 am-1:20 pm
1 stop14h 20m
$1,216
HoustonLisbon
IAH - LIS
IAHLIS
Houston George Bush Intcntl
Sat 5/16
9:05 pm-11:10 pm
1 stop20h 05m
Lisbon Humberto Delgado
Sat 5/23
7:10 am-7:47 pm
2 stops18h 37m
$1,240
Showing 1-10 of 22 resultsSorted by cheapest first
Compare providers for flights from George Bush Intcntl to Lisbon
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from George Bush Intcntl to Lisbon in April.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Houston George Bush Intcntl Airport-Lisbon flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Houston George Bush Intcntl Airport-Lisbon flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Houston George Bush Intcntl Airport-Lisbon flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Houston George Bush Intcntl Airport-Lisbon flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Houston George Bush Intcntl Airport-Lisbon flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from George Bush Intcntl to Lisbon
Have a flexible travel schedule? Discover the best time to fly to Lisbon from George Bush Intcntl with our price prediction graph.
IAH-LIS
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 George Bush Intcntl Airport to Lisbon
How far ahead should I book a flight from Houston George Bush Intcntl Airport to Lisbon?
The price you pay for your flight from Houston George Bush Intcntl Airport to Lisbon may vary depending on when you book. For the best chance of a lower fare, look to book 41 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest month to book a flight from Houston George Bush Intcntl Airport to Lisbon?
Currently, November is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Lisbon (average of $620). Flying from Houston George Bush Intcntl Airport to Lisbon in June is currently the most expensive (average of $1,296). 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 much does it cost to fly round-trip from Houston George Bush Intcntl Airport to Lisbon?
Reviews of airlines servicing Lisbon
Get insights into the airlines that provide service to Lisbon. 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 Lisbon. Reviews last updated April 28, 2026.
Read through reviews of airlines operating flights from Houston George Bush Intcntl Airport to Lisbon, such as Delta,Air France, andUnited Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Overall
7.9
Entertainment
7.8
Comfort
7.9
Food
7.2
Crew
8.5
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Boarding
8.1
Overall
7.9
Entertainment
7.8
Comfort
7.9
Food
7.2
Crew
8.5
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Boarding
8.1
Overall
7.9
Entertainment
7.8
Comfort
7.9
Food
7.2
Crew
8.5
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Boarding
8.1
Overall
7.9
Entertainment
7.8
Comfort
7.9
Food
7.2
Crew
8.5
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Boarding
8.1
Overall
7.9
Entertainment
7.8
Comfort
7.9
Food
7.2
Crew
8.5
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Boarding
8.1
Overall
7.9
Entertainment
7.8
Comfort
7.9
Food
7.2
Crew
8.5
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Related info for your journey
Find useful and relevant information for your journey from George Bush Intcntl to Lisbon. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Lisbon?
Book flights to Lisbon if you plan to visit one of these locationsFátima
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Explore flights to Lisbon departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on April 28, 2026.
George Bush Intcntl and Lisbon flights
Browse other George Bush Intcntl and Lisbon flight options. Last updated on April 28, 2026.
Other flights from George Bush Intcntl
Browse through other flights departing from George Bush Intcntl. Flights are based on user searches made on Cheapflights and were last updated on April 28, 2026.
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Top 7 airlines flying from George Bush Intcntl to Lisbon
Discover the top 7 airlines that operate flights from George Bush Intcntl to Lisbon. 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 April 28, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$540 | Average$762 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$541 | Average$1,120 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$541 | Average$753 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$559 | Average$860 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$583 | Average$909 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$621 | Average$733 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$646 | Average$913 | FlexibilityNo cancel fee | On-time67% |