$341+ 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 11/8. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — LIS
Jul 8 — Jul 151
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from George Bush Intcntl to Lisbon
Cheapest
Best
Last-minute
One-way
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 June 8, 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 June 8, 2026.
This KLM deal was found by Cheapflights users on 6/3. 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.
Thu 10/153:20 pm
IAH
- LIS
1 stop13h 35m
Multiple Airlines
Sun 10/186:50 pm
LIS
- IAH
1 stop24h 50m
Multiple Airlines
Deal found 6/3![Multiple Airlines logo]()
$958
This FlightHub deal was found by Cheapflights users on 6/4. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1912:10 pm
IAH
- LIS
1 stop15h 40m
Air Canada
Sat 11/2811:20 am
LIS
- IAH
1 stop16h 19m
Air Canada
Deal found 6/4![Air Canada logo]()
$959
This Delta deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/512:55 pm
IAH
- LIS
2 stops20h 15m
Delta
Sat 1/95:00 am
LIS
- IAH
2 stops22h 10m
Delta
Deal found 6/8![Delta logo]()
$960
This United Airlines deal was found by Cheapflights users on 6/3. 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.
Fri 11/2012:10 pm
IAH
- LIS
1 stop15h 40m
United Airlines
Tue 12/15:00 am
LIS
- IAH
1 stop15h 00m
United Airlines
Deal found 6/3![United Airlines logo]()
$961
This Turkish Airlines deal was found by Cheapflights users on 6/3. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/219:00 pm
IAH
- LIS
1 stop36h 10m
Turkish Airlines
Mon 11/304:10 pm
LIS
- IAH
1 stop32h 55m
Turkish Airlines
Deal found 6/3![Turkish Airlines logo]()
$963
This Air France deal was found by Cheapflights users on 6/3. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2711:30 am
IAH
- LIS
2 stops14h 30m
Multiple Airlines
Mon 12/75:00 am
LIS
- IAH
2 stops17h 35m
Multiple Airlines
Deal found 6/3![Multiple Airlines logo]()
$964
This United Airlines deal was found by Cheapflights users on 6/3. 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 8/2610:00 am
IAH
- LIS
1 stop17h 20m
United Airlines
Fri 9/45:05 am
LIS
- IAH
1 stop18h 50m
United Airlines
Deal found 6/3![United Airlines logo]()
$965
This FlightHub deal was found by Cheapflights users on 6/4. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1710:00 am
IAH
- LIS
1 stop17h 20m
Multiple Airlines
Thu 9/245:55 am
LIS
- IAH
2 stops19h 57m
Multiple Airlines
Deal found 6/4![Multiple Airlines logo]()
$966
This United Airlines deal was found by Cheapflights users on 6/4. 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.
Wed 7/2910:00 am
IAH
- LIS
1 stop17h 20m
United Airlines
Wed 8/1211:25 am
LIS
- IAH
2 stops30h 21m
United Airlines
Deal found 6/4![United Airlines logo]()
$967
This Cheapflightsfares deal was found by Cheapflights users on 6/3. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/59:10 pm
IAH
- LIS
1 stop19h 55m
British Airways
Tue 7/216:45 pm
LIS
- IAH
1 stop24h 40m
British Airways
Deal found 6/3![British Airways logo]()
$968
This FlightHub deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1710:00 am
IAH
- LIS
1 stop17h 20m
Air Canada
Thu 9/247:25 am
LIS
- IAH
2 stops20h 27m
Air Canada
Deal found 6/8![Air Canada logo]()
$969
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 June 8, 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 June 8, 2026.
This United Airlines deal was found by Cheapflights users on 6/4. 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.
Wed 7/2910:00 am
IAH
- LIS
1 stop17h 20m
United Airlines
Wed 8/1211:25 am
LIS
- IAH
2 stops30h 21m
United Airlines
Deal found 6/4![United Airlines logo]()
$967
This United deal was found by Cheapflights users on 6/3. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/2910:00 am
IAH
- LIS
1 stop17h 20m
Multiple Airlines
Thu 8/65:05 am
LIS
- IAH
2 stops22h 56m
Multiple Airlines
Deal found 6/3![Multiple Airlines logo]()
$975
This Delta deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/13:15 pm
IAH
- LIS
2 stops17h 40m
Delta
Tue 9/85:00 am
LIS
- IAH
2 stops20h 21m
Delta
Deal found 6/7![Delta logo]()
$981
This Finnair deal was found by Cheapflights users on 6/3. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/242:09 pm
IAH
- LIS
2 stops27h 16m
Finnair
Mon 8/314:35 pm
LIS
- IAH
2 stops31h 29m
Finnair
Deal found 6/3![Finnair logo]()
$1,012
This Turkish Airlines deal was found by Cheapflights users on 6/5. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/262:30 pm
IAH
- LIS
1 stop37h 20m
Turkish Airlines
Thu 7/25:05 pm
LIS
- IAH
1 stop25h 40m
Turkish Airlines
Deal found 6/5![Turkish Airlines logo]()
$1,312
This British Airways deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/49:10 pm
IAH
- LIS
1 stop14h 55m
British Airways
Sun 8/27:20 am
LIS
- IAH
1 stop36h 05m
British Airways
Deal found 6/8![British Airways logo]()
$1,364
This United Airlines deal was found by Cheapflights users on 6/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/710:08 pm
IAH
- LIS
2 stops29h 12m
United Airlines
Tue 7/1411:25 am
LIS
- IAH
2 stops30h 26m
United Airlines
Deal found 6/7![United Airlines logo]()
$971
This United Airlines deal was found by Cheapflights users on 6/4. 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.
Fri 9/188:11 pm
IAH
- LIS
2 stops55h 09m
United Airlines
Sun 9/271:00 pm
LIS
- IAH
2 stops32h 17m
United Airlines
Deal found 6/4![United Airlines logo]()
$979
This United Airlines deal was found by Cheapflights users on 6/3. 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 7/2910:57 am
IAH
- LIS
2 stops16h 23m
United Airlines
Fri 8/71:00 pm
LIS
- IAH
2 stops17h 45m
United Airlines
Deal found 6/3![United Airlines logo]()
$999
This Delta deal was found by Cheapflights users on 6/5. 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 6/305:00 pm
IAH
- LIS
1 stop18h 50m
Delta
Tue 7/75:00 am
LIS
- IAH
1 stop14h 20m
Delta
Deal found 6/5![Delta logo]()
$1,357
This Delta deal was found by Cheapflights users on 6/5. 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 6/302:43 pm
IAH
- LIS
2 stops21h 07m
Delta
Mon 7/611:55 am
LIS
- IAH
1 stop31h 25m
Delta
Deal found 6/5![Delta logo]()
$1,361
This United Airlines deal was found by Cheapflights users on 6/6. 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.
Thu 6/254:40 pm
IAH
- LIS
1 stop24h 05m
United Airlines
Thu 7/27:25 am
LIS
- IAH
1 stop16h 30m
United Airlines
Deal found 6/6![United Airlines logo]()
$1,431
Last-minute flights from George Bush Intcntl to LisbonDiscover last-minute flight deals from George Bush Intcntl to Lisbon. Data last updated June 8, 2026 and is based on user searches.
Discover last-minute flight deals from George Bush Intcntl to Lisbon. Data last updated June 8, 2026 and is based on user searches.
This Cheapflightsfares deal was found by Cheapflights users on 6/3. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/59:10 pm
IAH
- LIS
1 stop19h 55m
British Airways
Tue 7/216:45 pm
LIS
- IAH
1 stop24h 40m
British Airways
Deal found 6/3![British Airways logo]()
$968
This Mytrip deal was found by Cheapflights users on 6/3. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/56:45 am
IAH
- LIS
1 stop22h 20m
Air Canada
Tue 7/216:45 am
LIS
- IAH
2 stops34h 05m
Air Canada
Deal found 6/3![Air Canada logo]()
$980
This KLM deal was found by Cheapflights users on 6/6. 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.
Mon 7/63:25 pm
IAH
- LIS
1 stop17h 10m
KLM
Mon 7/133:35 pm
LIS
- IAH
1 stop27h 45m
KLM
Deal found 6/6![KLM logo]()
$972
This Expedia deal was found by Cheapflights users on 6/7. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/710:00 am
IAH
- LIS
1 stop17h 20m
Air Canada
Tue 7/141:00 pm
LIS
- IAH
1 stop27h 50m
Air Canada
Deal found 6/7![Air Canada logo]()
$965
This United Airlines deal was found by Cheapflights users on 6/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/710:08 pm
IAH
- LIS
2 stops29h 12m
United Airlines
Tue 7/1411:25 am
LIS
- IAH
2 stops30h 26m
United Airlines
Deal found 6/7![United Airlines logo]()
$971
This Mytrip deal was found by Cheapflights users on 6/3. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/1210:00 am
IAH
- LIS
1 stop17h 20m
Air Canada
Tue 7/216:45 am
LIS
- IAH
2 stops32h 07m
Air Canada
Deal found 6/3![Air Canada logo]()
$975
This Delta deal was found by Cheapflights users on 6/6. 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.
Mon 7/135:05 pm
IAH
- LIS
1 stop15h 50m
Delta
Wed 7/2211:55 am
LIS
- IAH
2 stops18h 02m
Delta
Deal found 6/6![Delta logo]()
$977
This Mytrip deal was found by Cheapflights users on 6/4. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/2311:45 am
IAH
- LIS
2 stops15h 35m
Multiple Airlines
Mon 8/316:15 am
LIS
- IAH
2 stops37h 40m
Multiple Airlines
Deal found 6/4![Multiple Airlines logo]()
$982
This AirNGo deal was found by Cheapflights users on 6/6. 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 AirNGo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/265:25 pm
IAH
- LIS
2 stops33h 55m
Air Canada
Tue 8/111:00 pm
LIS
- IAH
2 stops32h 46m
Air Canada
Deal found 6/6![Air Canada logo]()
$973
This United Airlines deal was found by Cheapflights users on 6/4. 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.
Wed 7/2910:00 am
IAH
- LIS
1 stop17h 20m
United Airlines
Wed 8/1211:25 am
LIS
- IAH
2 stops30h 21m
United Airlines
Deal found 6/4![United Airlines logo]()
$967
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 June 8, 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 June 8, 2026.
This Expedia deal was found by Cheapflights users on 6/4. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/83:30 pm
IAH
- LIS
1 stop13h 30m
Air Canada
Deal found 6/4![Air Canada logo]()
$341
This Expedia deal was found by Cheapflights users on 6/4. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/86:15 pm
IAH
- LIS
2 stops17h 30m
British Airways
Deal found 6/4![British Airways logo]()
$358
This United Airlines deal was found by Cheapflights users on 6/4. 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 11/85:05 pm
IAH
- LIS
1 stop11h 10m
United Airlines
Deal found 6/4![United Airlines logo]()
$360
This Kiwi.com deal was found by Cheapflights users on 6/7. 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.
Tue 7/147:23 pm
IAH
- LIS
3 stops44h 22m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$365
This Kiwi.com deal was found by Cheapflights users on 6/4. 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 9/217:53 pm
IAH
- LIS
2 stops40h 32m
Multiple Airlines
Deal found 6/4![Multiple Airlines logo]()
$373
This Kiwi.com deal was found by Cheapflights users on 6/4. 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 7/151:29 pm
IAH
- LIS
3 stops39h 31m
Multiple Airlines
Deal found 6/4![Multiple Airlines logo]()
$386
This Orbitz deal was found by Cheapflights users on 6/4. 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.
Mon 9/2110:00 am
IAH
- LIS
1 stop17h 20m
Air Canada
Deal found 6/4![Air Canada logo]()
$403
This Cheapflightsfares deal was found by Cheapflights users on 6/7. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/73:30 pm
IAH
- LIS
1 stop18h 10m
British Airways
Deal found 6/7![British Airways logo]()
$413
This Kiwi.com deal was found by Cheapflights users on 6/7. 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.
Sat 7/187:23 pm
IAH
- LIS
3 stops55h 27m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$415
This Kiwi.com deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/410:52 am
IAH
- LIS
3 stops49h 03m
Multiple Airlines
Deal found 6/6![Multiple Airlines logo]()
$422
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 June 8, 2026.
Most accurate provider | Ovago 3 stars |
|---|---|
Most trusted provider | Ovago 3 stars |
Round-trip from | $958 (KLM) |
One-way from | $341 (Expedia) |
Popular in | June |
Cheapest in | November |
Average price | $1,347 |
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 June 8, 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
Wed 7/29
10:00 am-9:20 am
1 stop17h 20m
Lisbon Humberto Delgado
Wed 8/12
11:25 am-11:46 am
2 stops30h 21m
$967
HoustonLisbon
IAH - LIS
IAHLIS
Houston George Bush Intcntl
Tue 7/7
10:08 pm-9:20 am
2 stops29h 12m
Lisbon Humberto Delgado
Tue 7/14
11:25 am-11:51 am
2 stops30h 26m
$971
HoustonLisbon
IAH - LIS
IAHLIS
Houston George Bush Intcntl
Wed 7/29
10:00 am-9:20 am
1 stop17h 20m
Lisbon Humberto Delgado
Thu 8/6
5:05 am-10:01 pm
2 stops22h 56m
$975
HoustonLisbon
IAH - LIS
IAHLIS
Houston George Bush Intcntl
Fri 9/18
8:11 pm-9:20 am
2 stops55h 09m
Lisbon Humberto Delgado
Sun 9/27
1:00 pm-3:17 pm
2 stops32h 17m
$979
HoustonLisbon
IAH - LIS
IAHLIS
Houston George Bush Intcntl
Tue 9/1
3:15 pm-2:55 pm
2 stops17h 40m
Lisbon Humberto Delgado
Tue 9/8
5:00 am-7:21 pm
2 stops20h 21m
$981
HoustonLisbon
IAH - LIS
IAHLIS
Houston George Bush Intcntl
Wed 7/29
10:57 am-9:20 am
2 stops16h 23m
Lisbon Humberto Delgado
Fri 8/7
1:00 pm-12:45 am
2 stops17h 45m
$999
HoustonLisbon
IAH - LIS
IAHLIS
Houston George Bush Intcntl
Mon 8/24
2:09 pm-11:25 pm
2 stops27h 16m
Lisbon Humberto Delgado
Mon 8/31
4:35 pm-6:04 pm
2 stops31h 29m
$1,012
HoustonLisbon
IAH - LIS
IAHLIS
Houston George Bush Intcntl
Fri 6/26
2:30 pm-9:50 am
1 stop37h 20m
Lisbon Humberto Delgado
Thu 7/2
5:05 pm-12:45 pm
1 stop25h 40m
$1,312
Quickest round-trip
HoustonLisbon
IAH - LIS
IAHLIS
Houston George Bush Intcntl
Tue 6/30
5:00 pm-5:50 pm
1 stop18h 50m
Lisbon Humberto Delgado
Tue 7/7
5:00 am-1:20 pm
1 stop14h 20m
$1,357
HoustonLisbon
IAH - LIS
IAHLIS
Houston George Bush Intcntl
Tue 6/30
2:43 pm-5:50 pm
2 stops21h 07m
Lisbon Humberto Delgado
Mon 7/6
11:55 am-1:20 pm
1 stop31h 25m
$1,361
Showing 1-10 of 19 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 June.
| 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 Ovago to be most consistent on Cheapflights vs. Ovago Users can find the same prices on Houston George Bush Intcntl Airport-Lisbon flight deals on Cheapflights vs. Ovago >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 Ovago the most. Ovago 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 $618). Flying from Houston George Bush Intcntl Airport to Lisbon in June is currently the most expensive (average of $1,354). 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 June 8, 2026.
Read through reviews of airlines operating flights from Houston George Bush Intcntl Airport to Lisbon, such as Delta,Air France, andTurkish Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.8
Food
7.2
Overall
7.9
Entertainment
7.8
Crew
8.5
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Comfort
7.8
Food
7.2
Overall
7.9
Entertainment
7.8
Crew
8.5
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Comfort
7.8
Food
7.2
Overall
7.9
Entertainment
7.8
Crew
8.5
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Comfort
7.8
Food
7.2
Overall
7.9
Entertainment
7.8
Crew
8.5
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Comfort
7.8
Food
7.2
Overall
7.9
Entertainment
7.8
Crew
8.5
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Comfort
7.8
Food
7.2
Overall
7.9
Entertainment
7.8
Crew
8.5
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
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
Ericeira
Oeiras
Beja
Costa da Caparica
Torres Vedras
Nazaré
Colares
Sesimbra
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Lisbon flight routes
Other flight options
Other flights from George Bush Intcntl
Popular flights
Alternative routes for George Bush Intcntl to Lisbon
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Lisbon by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from George Bush Intcntl to Lisbon by cabin class
Find flights from George Bush Intcntl to Lisbon, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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 June 8, 2026.
George Bush Intcntl and Lisbon flights
Browse other George Bush Intcntl and Lisbon flight options. Last updated on June 8, 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 June 8, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
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 June 8, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$540 | Average$753 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$541 | Average$1,205 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$541 | Average$756 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$559 | Average$860 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$581 | Average$905 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$621 | Average$733 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$646 | Average$913 | FlexibilityNo cancel fee | On-time67% |