$536 Cheap Flights from Lisbon (LIS) to Houston (IAH)

View $536 flight on Tue, Jan 20, 2026Opens in a new window

Popular airlines from Humberto Delgado Airport (LIS) to George Bush Intercontinental Airport (IAH)

Cheap Flights from Lisbon to Houston (LIS-IAH)

Prices were available within the past 7 days and start at $536 for one-way flights and $813 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Scandinavian Airlines
Wed, Mar 4 - Fri, Mar 20
LIS
Lisbon
IAH
Houston
$813 Roundtrip, found 4 days ago
$813
Roundtrip
found 4 days ago
Select Scandinavian Airlines flight, departing Wed, Mar 4 from Lisbon to Houston, returning Fri, Mar 20, priced at $813 found 4 days ago
Lufthansa
Wed, Mar 4 - Sun, Mar 15
LIS
Lisbon
IAH
Houston
$840 Roundtrip, found 2 days ago
$840
Roundtrip
found 2 days ago
Select Lufthansa flight, departing Wed, Mar 4 from Lisbon to Houston, returning Sun, Mar 15, priced at $840 found 2 days ago
British Airways
Mon, Dec 8 - Mon, Dec 15
LIS
Lisbon
IAH
Houston
$850 Roundtrip, found 6 days ago
$850
Roundtrip
found 6 days ago
Select British Airways flight, departing Mon, Dec 8 from Lisbon to Houston, returning Mon, Dec 15, priced at $850 found 6 days ago
Delta
Mon, Apr 6 - Mon, Apr 13
LIS
Lisbon
IAH
Houston
$854 Roundtrip, found 3 days ago
$854
Roundtrip
found 3 days ago
Select Delta flight, departing Mon, Apr 6 from Lisbon to Houston, returning Mon, Apr 13, priced at $854 found 3 days ago
Air Canada
Fri, Nov 21 - Sat, Nov 29
LIS
Lisbon
IAH
Houston
$855 Roundtrip, found 1 day ago
$855
Roundtrip
found 1 day ago
Select Air Canada flight, departing Fri, Nov 21 from Lisbon to Houston, returning Sat, Nov 29, priced at $855 found 1 day ago
Iberia
Thu, Mar 5 - Mon, Mar 16
LIS
Lisbon
IAH
Houston
$861 Roundtrip, found 2 days ago
$861
Roundtrip
found 2 days ago
Select Iberia flight, departing Thu, Mar 5 from Lisbon to Houston, returning Mon, Mar 16, priced at $861 found 2 days ago
United
Thu, Apr 2 - Tue, Apr 14
LIS
Lisbon
IAH
Houston
$872 Roundtrip, found 3 days ago
$872
Roundtrip
found 3 days ago
Select United flight, departing Thu, Apr 2 from Lisbon to Houston, returning Tue, Apr 14, priced at $872 found 3 days ago
American Airlines
Fri, Jun 12 - Tue, Jun 23
LIS
Lisbon
IAH
Houston
$875 Roundtrip, found 13 hours ago
$875
Roundtrip
found 13 hours ago
Select American Airlines flight, departing Fri, Jun 12 from Lisbon to Houston, returning Tue, Jun 23, priced at $875 found 13 hours ago
Brussels Airlines
Wed, Mar 4 - Sun, Mar 15
LIS
Lisbon
IAH
Houston
$891 Roundtrip, found 2 days ago
$891
Roundtrip
found 2 days ago
Select Brussels Airlines flight, departing Wed, Mar 4 from Lisbon to Houston, returning Sun, Mar 15, priced at $891 found 2 days ago
Virgin Atlantic
Fri, Nov 7 - Wed, Nov 12
LIS
Lisbon
IAH
Houston
$894 Roundtrip, found 5 days ago
$894
Roundtrip
found 5 days ago
Select Virgin Atlantic flight, departing Fri, Nov 7 from Lisbon to Houston, returning Wed, Nov 12, priced at $894 found 5 days ago

Find the cheapest month to fly from Lisbon (LIS) to Houston (IAH)

February is typically the cheapest month to fly

From $678 - $931 per traveler.

Alternative airports near Houston

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to George Bush Intercontinental IAH. Cheapest option available. Average driving time to city center is 24 minutes. Flights from $880
IAH
George Bush Intercontinental
Cheapest
Average driving time to city center24 min
Flights from $880

Frequently asked questions

How much does a flight from Humberto Delgado Airport (LIS) to George Bush Intercontinental Airport (IAH) cost?
Lock in a cheap one-way flight from $536 or cheap return flight from $813 from Humberto Delgado Airport (LIS) to George Bush Intercontinental Airport (IAH) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Humberto Delgado Airport (LIS) to George Bush Intercontinental Airport (IAH)?
The cheapest month to fly from LIS to IAH is March, when there's less demand. Off-peak season is usually when airlines offer lower prices between these airports.
What is the cheapest airline that flies from Humberto Delgado Airport (LIS) to George Bush Intercontinental Airport (IAH)?
Use the filters on Expedia to compare airlines and find the cheapest carrier that'll take you from LIS to IAH. Then, sort your results by "Price (lowest to highest)" to pick up the best deal available.
How many flights per day from Humberto Delgado Airport (LIS) to George Bush Intercontinental Airport (IAH)?
There are no daily direct flights departing from Humberto Delgado Airport (LIS) to George Bush Intercontinental Airport (IAH). But you can choose flights with layovers. Filter your search on Expedia to include one or two stops, and you'll be cruising above the clouds before you know it.
What day of the week has the most flights from LIS to IAH?
Typically you'll have the most choice when it comes to flights on a Friday. Tuesdays are often the quietest.* However, this can vary based on the time of year, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Humberto Delgado Airport (LIS) to George Bush Intercontinental Airport (IAH)?
Book a flight from Humberto Delgado Airport (LIS) to George Bush Intercontinental Airport (IAH) that leaves before 3 PM to reduce the risk of cancellations. Departures after this time have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Humberto Delgado Airport (LIS) to George Bush Intercontinental Airport (IAH) last-minute?
Holding off until just before your trip to book a ticket from LIS to IAH generally means paying more. Although you may find some last-minute deals, they're not always guaranteed. Allow some flexibility in your schedule for a better chance of getting a bargain.
Is it cheaper to book a LIS to IAH flight and hotel package?
You'll generally save money by securing a LIS to IAH flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one convenient place. Once you've chosen your preferred flights and accommodations, you can add extras such as car rentals, tours and activities.
Can I cancel or change the date of my flight from Humberto Delgado Airport (LIS) to George Bush Intercontinental Airport (IAH)?
If you booked your LIS to IAH flight in the last 24 hours, you may be able to modify or cancel it at no cost. Depending on the airline and the type of fare you have, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal for more information.

Travel information

Origin airport
Humberto Delgado
Destination airport
George Bush Intercontinental
Airlines serving
Aer Lingus, Air Canada, Air France, American Airlines, Austrian Airlines, British Airways, Brussels Airlines, Delta, Emirates, Finnair, Iberia, JetBlue Airways, KLM, Lufthansa, Swiss International Air Lines, TAP Portugal, Turkish Airlines, United, Virgin Atlantic
Roundtrip price
$813
Distance
4770 mi

Book with confidence

Lisbon to Houston Flights

The cheapest times to fly from Lisbon to Houston

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Lisbon to Houston are during the month of March. You can find some of the cheapest flights from Lisbon to Houston with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Lisbon to Houston

Sunday is one of the best days to book for cheap flights from Lisbon to Houston: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Lisbon to Houston

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Lisbon to Houston in 2025. You can also book with separate airlines for your outbound and return journeys, from $536 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Lisbon to Houston flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Lisbon to Houston airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Lisbon to Houston Flights

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*Available to One Key members.