$606 Cheap Flights from Lisbon (LIS) to Houston (IAH)

View $606 flight on Fri, Nov 13, 2026Opens in a new window

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

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Cheap Flights from Lisbon to Houston (LIS-IAH)

Prices were available within the past 7 days and start at $606 for one-way flights and $951 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Lufthansa
Thu, Apr 23 - Mon, Apr 27
LIS
Lisbon
IAH
Houston
$951 Roundtrip, found 6 days ago
$951
Roundtrip
found 6 days ago
Select Lufthansa flight, departing Thu, Apr 23 from Lisbon to Houston, returning Mon, Apr 27, priced at $951 found 6 days ago
Lufthansa
Fri, Aug 28 - Mon, Sep 7
LIS
Lisbon
IAH
Houston
$952 Roundtrip, found 5 days ago
$952
Roundtrip
found 5 days ago
Select Lufthansa flight, departing Fri, Aug 28 from Lisbon to Houston, returning Mon, Sep 7, priced at $952 found 5 days ago
Lufthansa
Sat, Apr 25 - Wed, Apr 29
LIS
Lisbon
IAH
Houston
$955 Roundtrip, found 3 days ago
$955
Roundtrip
found 3 days ago
Select Lufthansa flight, departing Sat, Apr 25 from Lisbon to Houston, returning Wed, Apr 29, priced at $955 found 3 days ago
Lufthansa
Fri, Apr 24 - Thu, May 7
LIS
Lisbon
IAH
Houston
$958 Roundtrip, found 5 days ago
$958
Roundtrip
found 5 days ago
Select Lufthansa flight, departing Fri, Apr 24 from Lisbon to Houston, returning Thu, May 7, priced at $958 found 5 days ago
British Airways
Fri, Aug 28 - Mon, Sep 7
LIS
Lisbon
IAH
Houston
$975 Roundtrip, found 5 days ago
$975
Roundtrip
found 5 days ago
Select British Airways flight, departing Fri, Aug 28 from Lisbon to Houston, returning Mon, Sep 7, priced at $975 found 5 days ago
Swiss International Air Lines
Sat, Apr 25 - Wed, Apr 29
LIS
Lisbon
IAH
Houston
$991 Roundtrip, found 3 days ago
$991
Roundtrip
found 3 days ago
Select Swiss International Air Lines flight, departing Sat, Apr 25 from Lisbon to Houston, returning Wed, Apr 29, priced at $991 found 3 days ago
Air Canada
Wed, Oct 21 - Sat, Nov 7
LIS
Lisbon
IAH
Houston
$998 Roundtrip, found 20 hours ago
$998
Roundtrip
found 20 hours ago
Select Air Canada flight, departing Wed, Oct 21 from Lisbon to Houston, returning Sat, Nov 7, priced at $998 found 20 hours ago
Brussels Airlines
Wed, Oct 21 - Sat, Nov 7
LIS
Lisbon
IAH
Houston
$1,001 Roundtrip, found 20 hours ago
$1,001
Roundtrip
found 20 hours ago
Select Brussels Airlines flight, departing Wed, Oct 21 from Lisbon to Houston, returning Sat, Nov 7, priced at $1,001 found 20 hours ago
Delta
Wed, Oct 21 - Sat, Nov 7
LIS
Lisbon
IAH
Houston
$1,003 Roundtrip, found 20 hours ago
$1,003
Roundtrip
found 20 hours ago
Select Delta flight, departing Wed, Oct 21 from Lisbon to Houston, returning Sat, Nov 7, priced at $1,003 found 20 hours ago
Iberia
Wed, Apr 29 - Sun, May 3
LIS
Lisbon
IAH
Houston
$1,008 Roundtrip, found 3 hours ago
$1,008
Roundtrip
found 3 hours ago
Select Iberia flight, departing Wed, Apr 29 from Lisbon to Houston, returning Sun, May 3, priced at $1,008 found 3 hours ago

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 $1,031
IAH
George Bush Intercontinental
Cheapest
Average driving time to city center24 min
Flights from $1,031

Frequently asked questions

How much does a flight from Lisbon (LIS-Humberto Delgado) to Houston, TX (IAH-George Bush Intercontinental) cost?
You can find cheap one-way flights from $606 and cheap return flights from $951 Lisbon (LIS-Humberto Delgado) to Houston, TX (IAH-George Bush Intercontinental) with Expedia. One-way flights usually range from $748 to $3377, and return flights typically cost between $971 and $4310. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Lisbon (LIS-Humberto Delgado) to Houston, TX (IAH-George Bush Intercontinental) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Lisbon (LIS-Humberto Delgado) to Houston, TX (IAH-George Bush Intercontinental)?
The cheapest month to fly from LIS to IAH is April when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you're able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Lisbon (LIS-Humberto Delgado) to Houston, TX (IAH-George Bush Intercontinental)?
Enter LIS to IAH and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Lisbon (LIS-Humberto Delgado) to Houston, TX (IAH-George Bush Intercontinental)?
KLM is one of the cheapest airlines offering connecting flights from Lisbon (LIS) to Houston (IAH) with a layover in Schiphol (AMS), with round-trip tickets starting from around $896. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Lisbon (LIS-Humberto Delgado) to Houston, TX (IAH-George Bush Intercontinental)?
To find a cheap flight from Lisbon (LIS-Humberto Delgado) to Houston, TX (IAH-George Bush Intercontinental), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Lisbon (LIS-Humberto Delgado) to Houston, TX (IAH-George Bush Intercontinental)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
What is the earliest flight from Lisbon (LIS-Humberto Delgado) to Houston, TX (IAH-George Bush Intercontinental)?
The earliest flight from Lisbon (LIS-Humberto Delgado) to Houston (IAH-George Bush Intercontinental) typically departs at around 5:00 AM, operated by KLM and Delta. This seasonal service is active in February, providing an early start for those looking to reach Houston in the morning. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Lisbon (LIS-Humberto Delgado) to Houston, TX (IAH-George Bush Intercontinental)?
The most popular departure times for flights from Lisbon (LIS) to Houston (IAH) are from 9am to 12pm. About 47% of passengers choose this time window. Many major carriers, including United Airlines, American Airlines, and Delta, offer flights during this window. This timing is favored as it allows you to arrive in Houston with a full day ahead of you.
How long does it take to fly from Lisbon (LIS-Humberto Delgado) to Houston, TX (IAH-George Bush Intercontinental)?
Flights from LIS to IAH with one stop typically take around 16 hours 30 minutes, covering approximately 4,771 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Lisbon (LIS-Humberto Delgado) to Houston, TX (IAH-George Bush Intercontinental)?
You can fly business class between LIS and IAH. Airlines that offer business class service on this route include:

  • British Airways
  • Air Canada
  • Turkish Airlines
  • Lufthansa
  • Delta Air Lines
  • United Airlines
  • KLM
  • Emirates
  • Air France
  • TAP Portugal

First class is available with Emirates.
How do I earn miles on a Lisbon (LIS-Humberto Delgado) to Houston, TX (IAH-George Bush Intercontinental) flight with Expedia?
It's easy to earn miles on a Lisbon (LIS-Humberto Delgado) to Houston, TX (IAH-George Bush Intercontinental) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Houston from Humberto Delgado (LIS)?
From Humberto Delgado (LIS), you can fly into William P. Hobby (HOU) and George Bush Intercontinental (IAH) in Houston. Some flights may connect through major hubs like Adolfo Suarez Madrid-Barajas (MAD), Philadelphia Intl. (PHL), Logan Intl. (BOS) before reaching Houston. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Lisbon (LIS-Humberto Delgado) to Houston, TX (IAH-George Bush Intercontinental) at the last minute?
Typically, booking a last minute flight from Lisbon (LIS-Humberto Delgado) to Houston, TX (IAH-George Bush Intercontinental) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Lisbon (LIS-Humberto Delgado) to Houston, TX (IAH-George Bush Intercontinental) flight and hotel package?
Securing a Lisbon (LIS-Humberto Delgado) to Houston, TX (IAH-George Bush Intercontinental) Houston Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Lisbon (LIS-Humberto Delgado) to Houston, TX (IAH-George Bush Intercontinental)?
If you booked your Lisbon (LIS-Humberto Delgado) to Houston, TX (IAH-George Bush Intercontinental) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Humberto Delgado
Destination airport
George Bush Intercontinental
Airlines serving
Aer Lingus, Air Canada, Air France, American Airlines, British Airways, Brussels Airlines, Delta, Finnair, Iberia, JetBlue Airways, KLM, Lufthansa, Swiss International Air Lines, TAP Portugal, Turkish Airlines, United, Virgin Atlantic
Roundtrip price
$951
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 April. 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 2026. You can also book with separate airlines for your outbound and return journeys, from $606 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

*Flight schedules are subject to change.

*Available to One Key members.

 

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