$275+ 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 4/18. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — LIS
Mar 25 — Apr 11
1 adult, Economy
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Find cheap flights from George Bush Intcntl to Lisbon with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Cheapest flights from 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 February 23, 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 February 23, 2026.
This United Airlines deal was found by Cheapflights users on 2/22. Clicking the “Pick Dates” 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 4/86:00 am
IAH
- LIS
2 stops21h 20m
United Airlines
Tue 4/1411:25 am
LIS
- IAH
2 stops34h 24m
United Airlines
Deal found 2/22![United Airlines logo]()
$540
This KLM deal was found by Cheapflights users on 2/22. Clicking the “Pick Dates” 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 4/93:20 pm
IAH
- LIS
1 stop25h 30m
KLM
Fri 4/245:00 am
LIS
- IAH
1 stop14h 15m
KLM
Deal found 2/22![KLM logo]()
$541
This Booking.com deal was found by Cheapflights users on 2/23. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/185:25 pm
IAH
- LIS
2 stops33h 55m
Air Canada
Wed 11/255:00 am
LIS
- IAH
2 stops22h 44m
Air Canada
Deal found 2/23![Air Canada logo]()
$542
This Iberia deal was found by Cheapflights users on 2/23. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/223:30 pm
IAH
- LIS
1 stop20h 25m
Multiple Airlines
Wed 5/68:55 am
LIS
- IAH
2 stops21h 04m
Multiple Airlines
Deal found 2/23![Multiple Airlines logo]()
$543
This Finnair deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” 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.
Mon 4/209:05 pm
IAH
- LIS
1 stop20h 05m
Multiple Airlines
Tue 4/284:35 pm
LIS
- IAH
2 stops32h 44m
Multiple Airlines
Deal found 2/19![Multiple Airlines logo]()
$544
This United Airlines deal was found by Cheapflights users on 2/22. Clicking the “Pick Dates” 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 11/117:59 pm
IAH
- LIS
2 stops31h 21m
United Airlines
Thu 11/195:00 am
LIS
- IAH
2 stops22h 44m
United Airlines
Deal found 2/22![United Airlines logo]()
$546
This Delta deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” 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 11/168:15 am
IAH
- LIS
2 stops18h 45m
Delta
Tue 11/2411:25 am
LIS
- IAH
1 stop32h 05m
Delta
Deal found 2/21![Delta logo]()
$547
This KLM deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” 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 4/233:20 pm
IAH
- LIS
1 stop25h 30m
Multiple Airlines
Mon 4/276:50 pm
LIS
- IAH
1 stop24h 45m
Multiple Airlines
Deal found 2/19![Multiple Airlines logo]()
$548
This Booking.com deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” 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.
Mon 11/166:10 pm
IAH
- LIS
2 stops33h 10m
Air Canada
Mon 11/235:00 am
LIS
- IAH
2 stops22h 44m
Air Canada
Deal found 2/21![Air Canada logo]()
$550
This Delta deal was found by Cheapflights users on 2/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/93:20 pm
IAH
- LIS
1 stop13h 35m
Delta
Tue 4/145:00 am
LIS
- IAH
2 stops19h 34m
Delta
Deal found 2/22![Delta logo]()
$551
This Booking.com deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” 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.
Thu 10/297:10 am
IAH
- LIS
2 stops21h 10m
Multiple Airlines
Tue 11/35:00 am
LIS
- IAH
2 stops23h 44m
Multiple Airlines
Deal found 2/21![Multiple Airlines logo]()
$552
This Delta deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” 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 11/134:05 pm
IAH
- LIS
1 stop13h 15m
Delta
Mon 11/235:30 am
LIS
- IAH
2 stops22h 08m
Delta
Deal found 2/21![Delta logo]()
$553
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 February 23, 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 February 23, 2026.
This KLM deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” 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 4/233:20 pm
IAH
- LIS
1 stop25h 30m
Multiple Airlines
Mon 4/276:50 pm
LIS
- IAH
1 stop24h 45m
Multiple Airlines
Deal found 2/19![Multiple Airlines logo]()
$548
This British Airways deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” 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 4/253:30 pm
IAH
- LIS
1 stop18h 50m
British Airways
Sun 5/36:50 pm
LIS
- IAH
1 stop24h 35m
British Airways
Deal found 2/19![British Airways logo]()
$560
This Delta deal was found by Cheapflights users on 2/22. Clicking the “Pick Dates” 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 15m
Delta
Deal found 2/22![Delta logo]()
$596
This United Airlines deal was found by Cheapflights users on 2/22. Clicking the “Pick Dates” 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 5/59:47 am
IAH
- LIS
2 stops19h 13m
United Airlines
Tue 5/1211:25 am
LIS
- IAH
2 stops32h 12m
United Airlines
Deal found 2/22![United Airlines logo]()
$600
This Finnair deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” 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.
Wed 5/64:59 pm
IAH
- LIS
2 stops24h 26m
Finnair
Mon 5/114:35 pm
LIS
- IAH
2 stops32h 29m
Finnair
Deal found 2/19![Finnair logo]()
$719
This KLM deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” 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 3/2012:40 pm
IAH
- LIS
1 stop15h 20m
KLM
Sun 3/297:45 pm
LIS
- IAH
1 stop23h 30m
KLM
Deal found 2/19![KLM logo]()
$898
This Delta deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/313:50 pm
IAH
- LIS
1 stop17h 05m
Delta
Thu 4/99:50 am
LIS
- IAH
2 stops19h 09m
Delta
Deal found 2/19![Delta logo]()
$663
This British Airways deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” 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.
Mon 3/910:45 pm
IAH
- LIS
1 stop18h 10m
British Airways
Mon 3/166:35 pm
LIS
- IAH
1 stop25h 30m
British Airways
Deal found 2/21![British Airways logo]()
$670
This United Airlines deal was found by Cheapflights users on 2/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/16:05 pm
IAH
- LIS
1 stop21h 50m
United Airlines
Wed 5/610:25 am
LIS
- IAH
2 stops18h 09m
United Airlines
Deal found 2/22![United Airlines logo]()
$737
This Delta deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” 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 5/62:59 pm
IAH
- LIS
2 stops17h 36m
Delta
Mon 5/115:00 am
LIS
- IAH
1 stop14h 15m
Delta
Deal found 2/19![Delta logo]()
$721
This United Airlines deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” 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 3/147:50 pm
IAH
- LIS
1 stop33h 25m
United Airlines
Mon 3/235:00 am
LIS
- IAH
2 stops24h 30m
United Airlines
Deal found 2/21![United Airlines logo]()
$953
Last-minute flights from George Bush Intcntl to LisbonDiscover last-minute flight deals from George Bush Intcntl to Lisbon. Data last updated February 23, 2026 and is based on user searches.
Discover last-minute flight deals from George Bush Intcntl to Lisbon. Data last updated February 23, 2026 and is based on user searches.
This Air France deal was found by Cheapflights users on 2/22. Clicking the “Pick Dates” 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 3/14:05 pm
IAH
- LIS
1 stop17h 05m
Multiple Airlines
Wed 3/1111:25 am
LIS
- IAH
1 stop32h 05m
Multiple Airlines
Deal found 2/22![Multiple Airlines logo]()
$557
This oojo deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” 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.
Wed 3/41:16 pm
IAH
- LIS
1 stop13h 39m
British Airways
Wed 3/1111:05 am
LIS
- IAH
1 stop15h 26m
British Airways
Deal found 2/19![British Airways logo]()
$572
This American Airlines deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” 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 3/411:16 am
IAH
- LIS
2 stops15h 39m
American Airlines
Wed 3/1111:05 am
LIS
- IAH
2 stops16h 26m
American Airlines
Deal found 2/19![American Airlines logo]()
$582
This Delta deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/104:30 pm
IAH
- LIS
1 stop13h 05m
Delta
Tue 3/175:30 am
LIS
- IAH
2 stops21h 13m
Delta
Deal found 2/21![Delta logo]()
$579
This KLM deal was found by Cheapflights users on 2/22. Clicking the “Pick Dates” 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.
Wed 3/114:30 pm
IAH
- LIS
1 stop21h 00m
Multiple Airlines
Mon 3/164:10 pm
LIS
- IAH
1 stop27h 45m
Multiple Airlines
Deal found 2/22![Multiple Airlines logo]()
$581
This Air France deal was found by Cheapflights users on 2/22. Clicking the “Pick Dates” 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.
Mon 3/165:05 pm
IAH
- LIS
1 stop13h 15m
Air France
Tue 3/246:30 pm
LIS
- IAH
1 stop25h 25m
Air France
Deal found 2/22![Air France logo]()
$563
This BusinessClass deal was found by Cheapflights users on 2/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/1612:10 pm
IAH
- LIS
2 stops19h 40m
Multiple Airlines
Tue 3/2411:55 am
LIS
- IAH
1 stop17h 35m
Multiple Airlines
Deal found 2/22![Multiple Airlines logo]()
$587
This KLM deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/175:05 pm
IAH
- LIS
1 stop19h 25m
Multiple Airlines
Tue 3/319:20 am
LIS
- IAH
1 stop33h 55m
Multiple Airlines
Deal found 2/19![Multiple Airlines logo]()
$556
This KLM deal was found by Cheapflights users on 2/22. Clicking the “Pick Dates” 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.
Wed 3/184:30 pm
IAH
- LIS
1 stop13h 05m
KLM
Wed 4/13:35 pm
LIS
- IAH
1 stop27h 40m
KLM
Deal found 2/22![KLM logo]()
$562
This oojo deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” 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.
Sat 3/2110:50 pm
IAH
- LIS
1 stop30h 00m
British Airways
Sat 3/286:40 pm
LIS
- IAH
1 stop23h 40m
British Airways
Deal found 2/19![British Airways logo]()
$555
This Delta deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/245:05 pm
IAH
- LIS
1 stop19h 25m
Delta
Tue 3/3111:55 am
LIS
- IAH
2 stops18h 04m
Delta
Deal found 2/21![Delta logo]()
$547
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 February 23, 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 February 23, 2026.
This Kiwi.com deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/1812:07 pm
IAH
- LIS
3 stops50h 33m
Multiple Airlines
Deal found 2/19![Multiple Airlines logo]()
$275
This Kiwi.com deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/197:05 am
IAH
- LIS
2 stops43h 25m
Multiple Airlines
Deal found 2/19![Multiple Airlines logo]()
$304
This Kiwi.com deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” 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 5/308:35 pm
IAH
- LIS
2 stops43h 10m
Multiple Airlines
Deal found 2/21![Multiple Airlines logo]()
$310
This Kiwi.com deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/298:35 pm
IAH
- LIS
2 stops43h 20m
Multiple Airlines
Deal found 2/21![Multiple Airlines logo]()
$312
This Kiwi.com deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/14:27 pm
IAH
- LIS
3 stops49h 03m
Multiple Airlines
Deal found 2/19![Multiple Airlines logo]()
$315
This Kiwi.com deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” 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 8/227:51 pm
IAH
- LIS
2 stops43h 54m
Multiple Airlines
Deal found 2/20![Multiple Airlines logo]()
$319
This Kiwi.com deal was found by Cheapflights users on 2/23. 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.
Wed 8/197:51 pm
IAH
- LIS
2 stops44h 44m
Multiple Airlines
Deal found 2/23![Multiple Airlines logo]()
$320
This Kiwi.com deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/207:51 pm
IAH
- LIS
2 stops43h 54m
Multiple Airlines
Deal found 2/20![Multiple Airlines logo]()
$321
This Kiwi.com deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/261:42 pm
IAH
- LIS
3 stops46h 28m
Multiple Airlines
Deal found 2/20![Multiple Airlines logo]()
$323
This Kiwi.com deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” 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 5/46:14 pm
IAH
- LIS
3 stops42h 11m
Multiple Airlines
Deal found 2/20![Multiple Airlines logo]()
$329
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 February 23, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $540 (United Airlines) |
One-way from | $275 (Kiwi.com) |
Popular in | June |
Cheapest in | November |
Average price | $719 |
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 February 23, 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
George Bush Intcntl
Fly to
Lisbon
Route
Depart
Return
Price
HoustonLisbon
IAH - LIS
IAHLIS
Houston George Bush Intcntl
Thu 4/23
3:20 pm-10:50 pm
1 stop25h 30m
Lisbon Humberto Delgado
Mon 4/27
6:50 pm-1:35 pm
1 stop24h 45m
$548
HoustonLisbon
IAH - LIS
IAHLIS
Houston George Bush Intcntl
Sat 4/25
3:30 pm-4:20 pm
1 stop18h 50m
Lisbon Humberto Delgado
Sun 5/3
6:50 pm-1:25 pm
1 stop24h 35m
$560
HoustonLisbon
IAH - LIS
IAHLIS
Houston George Bush Intcntl
Tue 5/5
2:59 pm-5:50 pm
2 stops20h 51m
Lisbon Humberto Delgado
Tue 5/12
5:00 am-1:15 pm
1 stop14h 15m
$596
HoustonLisbon
IAH - LIS
IAHLIS
Houston George Bush Intcntl
Tue 5/5
9:47 am-11:00 am
2 stops19h 13m
Lisbon Humberto Delgado
Tue 5/12
11:25 am-1:37 pm
2 stops32h 12m
$600
HoustonLisbon
IAH - LIS
IAHLIS
Houston George Bush Intcntl
Tue 3/31
3:50 pm-2:55 pm
1 stop17h 05m
Lisbon Humberto Delgado
Thu 4/9
9:50 am-10:59 pm
2 stops19h 09m
$663
HoustonLisbon
IAH - LIS
IAHLIS
Houston George Bush Intcntl
Mon 3/9
10:45 pm-9:55 pm
1 stop18h 10m
Lisbon Humberto Delgado
Mon 3/16
6:35 pm-3:05 pm
1 stop25h 30m
$670
HoustonLisbon
IAH - LIS
IAHLIS
Houston George Bush Intcntl
Wed 5/6
4:59 pm-11:25 pm
2 stops24h 26m
Lisbon Humberto Delgado
Mon 5/11
4:35 pm-7:04 pm
2 stops32h 29m
$719
HoustonLisbon
IAH - LIS
IAHLIS
Houston George Bush Intcntl
Wed 5/6
2:59 pm-2:35 pm
2 stops17h 36m
Lisbon Humberto Delgado
Mon 5/11
5:00 am-1:15 pm
1 stop14h 15m
$721
HoustonLisbon
IAH - LIS
IAHLIS
Houston George Bush Intcntl
Fri 5/1
6:05 pm-9:55 pm
1 stop21h 50m
Lisbon Humberto Delgado
Wed 5/6
10:25 am-10:34 pm
2 stops18h 09m
$737
HoustonLisbon
IAH - LIS
IAHLIS
Houston George Bush Intcntl
Fri 3/20
12:40 pm-9:00 am
1 stop15h 20m
Lisbon Humberto Delgado
Sun 3/29
7:45 pm-1:15 pm
1 stop23h 30m
$898
Showing 1-10 of 18 results
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 February.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*2 stars | |
| Price Accuracy2 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?
Use this chart to determine the optimal time to book a round-trip flight from George Bush Intcntl to Lisbon. Price data was last updated on February 20, 2026.
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 24 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, January is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Lisbon (average of $539). Flying from Houston George Bush Intcntl Airport to Lisbon in June is currently the most expensive (average of $889). 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 February 23, 2026.
Read through reviews of airlines operating flights from Houston George Bush Intcntl Airport to Lisbon, such as Delta, Air France, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.9
Overall
7.9
Crew
8.5
Food
7.2
Boarding
8.1
Entertainment
7.8
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Comfort
7.9
Overall
7.9
Crew
8.5
Food
7.2
Boarding
8.1
Entertainment
7.8
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Comfort
7.9
Overall
7.9
Crew
8.5
Food
7.2
Boarding
8.1
Entertainment
7.8
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Comfort
7.9
Overall
7.9
Crew
8.5
Food
7.2
Boarding
8.1
Entertainment
7.8
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Comfort
7.9
Overall
7.9
Crew
8.5
Food
7.2
Boarding
8.1
Entertainment
7.8
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Comfort
7.9
Overall
7.9
Crew
8.5
Food
7.2
Boarding
8.1
Entertainment
7.8
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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Other flights to Lisbon
Explore flights to Lisbon departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on February 23, 2026.
George Bush Intcntl and Lisbon flights
Browse other George Bush Intcntl and Lisbon flight options. Last updated on February 23, 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 February 23, 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 February 23, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$540 | Average$840 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$546 | Average$752 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$559 | Average$988 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$590 | Average$899 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$595 | Average$1,120 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$621 | Average$726 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$693 | Average$956 | FlexibilityNo cancel fee | On-time67% |