$377 Find Cheap Flights from Portugal to Houston George Bush Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to George Bush Intcntl departing on 3/2. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Houston George Bush Intcntl Airport

 
These are the airlines KAYAK users have selected most often from within our search results for flights to Houston, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to Houston, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$772
Typical prices: $796-$1,162
Multiple Airlines
Mon 3/16Mon 3/30
LIS - IAH • 3 stops
Cheapest one-way
$377
Typical prices: $558-$559
Multiple Airlines
Mon 3/2
LIS - IAH • 3 stops
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Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Portugal to George Bush Intcntl

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Portugal to George Bush Intcntl that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Portugal to George Bush Intcntl

Mon, Mar 16 - Mon, Mar 30
Multiple Airlines Logo
7:40 am - 11:49 pm
LIS
-
IAH
45h 09m
3 stops
Multiple Airlines Logo
8:00 am - 6:05 am
IAH
-
LIS
40h 05m
3 stops
$772Multiple Airlines
Mon, Mar 16 - Mon, Mar 30
Multiple Airlines Logo
7:40 am - 11:49 pm
LIS
-
IAH
45h 09m
3 stops
Multiple Airlines Logo
11:15 am - 6:05 am
IAH
-
LIS
36h 50m
3 stops
$775Multiple Airlines
Mon, Mar 16 - Mon, Mar 30
Multiple Airlines Logo
7:40 am - 11:49 pm
LIS
-
IAH
45h 09m
3 stops
Multiple Airlines Logo
7:05 am - 1:10 pm
IAH
-
LIS
24h 05m
2 stops
$781Multiple Airlines
Mon, Mar 16 - Mon, Mar 30
Multiple Airlines Logo
6:40 am - 5:30 pm
LIS
-
IAH
39h 50m
2 stops
Multiple Airlines Logo
6:46 am - 11:00 am
IAH
-
LIS
22h 14m
1 stop
$799Multiple Airlines
Mon, Feb 16 - Tue, Feb 17
Multiple Airlines Logo
10:10 am - 11:59 pm
LIS
-
IAH
19h 49m
1 stop
Multiple Airlines Logo
5:24 pm - 2:50 pm
IAH
-
LIS
39h 26m
2 stops
$859Multiple Airlines
Sun, Feb 15 - Sat, Feb 28
Lufthansa Logo
5:00 am - 6:15 pm
LIS
-
IAH
19h 15m
1 stop
Lufthansa Logo
4:50 pm - 1:20 pm
IAH
-
LIS
14h 30m
1 stop
$860Lufthansa
Sun, Feb 15 - Sat, Feb 28
United Airlines Logo
5:00 am - 6:15 pm
LIS
-
IAH
19h 15m
1 stop
United Airlines Logo
6:30 am - 8:10 am
IAH
-
LIS
19h 40m
1 stop
$869United Airlines
Mon, Mar 16 - Mon, Mar 30
United Airlines Logo
5:00 am - 10:40 pm
LIS
-
IAH
22h 40m
2 stops
United Airlines Logo
2:45 pm - 8:20 am
IAH
-
LIS
11h 35m
1 stop
$878United Airlines
Sun, Feb 15 - Sat, Feb 28
Multiple Airlines Logo
5:00 am - 6:16 pm
LIS
-
IAH
19h 16m
2 stops
Multiple Airlines Logo
4:05 pm - 5:30 pm
IAH
-
LIS
19h 25m
1 stop
$880Multiple Airlines
Sun, Feb 15 - Sat, Feb 28
Multiple Airlines Logo
5:00 am - 6:16 pm
LIS
-
IAH
19h 16m
2 stops
Multiple Airlines Logo
4:05 pm - 3:10 pm
IAH
-
LIS
17h 05m
1 stop
$885Multiple Airlines
Booking Insights

KAYAK's insights & trends for flights to George Bush Intcntl

Get data-powered insights and trends for flights to George Bush Intcntl to help you find the cheapest flights, the best time to fly and much more.

How long is the flight to Houston George Bush Intcntl Airport?

The duration of your flight to Houston depends on your departure and arrival airports. Obviously any flights that include a layover will also be longer. The most popular route to Houston on KAYAK is from Lisbon, which takes 18h 28m.

How many direct flights to Houston George Bush Intcntl Airport are there each day?

There are around 604 direct flights from within Portugal to Houston George Bush Intcntl Airport every day. Most flights depart in the morning, with 6:00 am the most common departure time and 52% of flights departing in the morning.

Good to know

Low seasonSeptember
Cheapest flight$377
Best time to beat the crowds with an average 4% drop in price.
Most popular time to fly and prices are also 20% lower on average.
Flight from Lisbon to Houston George Bush Airport

FAQs - booking Houston George Bush Airport flights

  • How far is Houston George Bush Intcntl Airport from central Houston?

    You’ll need to travel 16 miles to reach the Houston city center from Houston George Bush Intcntl Airport.

  • How does KAYAK find such low prices on flights to Houston George Bush Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights to Houston George Bush Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to Houston George Bush Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Houston George Bush Airport is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights to Houston George Bush Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Houston George Bush Airport with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight to Houston George Bush Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Houston George Bush Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • How many direct flights to Houston George Bush Intcntl Airport are there each week?

    Each week there are around 4,227 direct flights from within Portugal to Houston George Bush Intcntl Airport. The most common day for departures is Monday, with 16% of flights taking off on this day.

Top tips for finding cheap flights to Houston George Bush Airport

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Houston George Bush Airport flight deals.

Reviews of the top airline flying from Portugal to George Bush Intcntl

 
See real verified KAYAK customer reviews for airlines flying to Houston. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Portugal to Houston. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to George Bush Intcntl? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9222 reviews
7.7Boarding
8.1Crew
6.6Food
7.1Entertainment
7.3Comfort
Airline reviews

Delayed, toilets did not flush, pilot parked to far away from Gate

2.0 MediocreLisa, Jan 2026
ELP - IAH
Read more United Airlines reviews

Delayed, toilets did not flush, pilot parked to far away from Gate

Check-in, boarding and the flight from Phoenix to Houston was quick and easy. The flight from Houston to Shreveport was delayed 5 hours. It was frustrating but I think United handled it the best they could.

The staff was hospitable and professional. The seat had a bit of wear. The winner shade was stuck 1/4 open. I received the best of both worlds. The morning sun was able to come in and blind the screen i was trying to use while at the same time it was too low to look out and enjoy the view. Rather embarrassing for a 1st class ticket.

In Liberia airport 5 min before our departure the airport was closed for takeoff for 30 min. Upon arrival to IAH we didn’t have any available gate and waited taxing another 40 min. As a result we arrived for 1+ h later. The walkway to the passport control in IAH is about 1-2 ml long. After the passport control you have to pass the security check again. Only 3 out of 16 checkpoints were open and the line was enormously long. As a result, even though we supposed to have 2.5 hrs gap in between the flights we missed our transfer. United rebooked us for the next available flight early morning and provided free hotel and meal vouchers through.

United is an incompetent airline. They parked the plane on the tarmac for an hour after arriving because they “didn’t have a gate available” it was actually some sort of lie because as we de planed there were approximately 9 open and manned and empty gates that we walked past. Many people on the flight missed connections for the hour long sit on the tarmac. Utterly baffling and incompetent behavior from United flight ops.

I boarded flight UA#1318 at Sacramento International Airport going back to Houston TX. The flight was scheduled at 5:10am. I was able to check in virtually using the United Airlines app. When I entered the airport, there was no one outside assisting with checked bags as it was for Delta Airlines. Immediately upon entering, there was a LONG, EXTREMELY LONG line to the kiosks to get boarding passes. I stand in line to get boarding passes then had to move to ANOTHER EXTREMELY LONG line to get my bags checked in. While standing in this line, we noticed an agent taking customers to 3 at a time to her station to check their bags in. Lucky for me, she called me back, checked my bags for me and I was on my way. I then encountered another long line at the TSA check and to avoid I ending up having to sign up for CLEAR to bypass it. So glad, I did.,...Both of my flights were great with no issues, butthe check in progress at Bush Airport was so much smoother. Check-in at SMF airport needs to be anaylzed and corrected. Do better United, I know you can....thanks

everything was pretty good. Houston airport is awful. Unnecessarily inefficient; people working there are rude. Badly run

Staff on board was excellent. Positive upbeat helpful- like it used to be.

The Sears in the 800s are not too good perfect Airbus why cant the new 737 fix that

Ot was overall fine. Left on time and had basic snacks. Weather was finicky but that’s not the airlines fault.

Traveling to a place near George Bush Intcntl?

Book flights to George Bush Intcntl if you plan to visit one of these locations
Tomball
Jersey Village

Everything you need to know for your flight to George Bush Intcntl

Information on the airport you'll fly into in Houston