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IAH - LIS

Find cheap flights from Houston George Bush Airport to Lisbon from $360

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from George Bush Intcntl to Lisbon departing on 6/24. 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
0 bags
Wed 6/5
Wed 6/12

Search hundreds of travel sites at once for deals on flights to Lisbon

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Houston to Lisbon.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Houston to Lisbon.
In the last 7 days travelers have searched 42,573,820 times on KAYAK, and here is why:

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Cheap flight deals from George Bush Intcntl to Lisbon (IAH-LIS)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from George Bush Intcntl to Lisbon 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 and deals for you by selecting your travel dates.
Choose your dates
6:28 pm - 10:30 amIAH-LIS
35h 02m1 stop
11:00 am - 1:27 pmLIS-IAH
32h 27m1 stop
Sat, Nov 2 - Thu, Nov 21
7:59 pm - 10:30 amIAH-LIS
33h 31m1 stop
11:00 am - 2:52 pmLIS-IAH
33h 52m2 stops
$690United Airlines
Find Deal
Sat, Nov 2 - Thu, Nov 21
2:30 pm - 9:20 amIAH-LIS
37h 50m2 stops
5:00 am - 9:58 pmLIS-IAH
22h 58m2 stops
$695Air Canada
Find Deal
Sat, Nov 2 - Thu, Nov 21
2:30 pm - 9:20 amIAH-LIS
37h 50m2 stops
11:00 am - 1:27 pmLIS-IAH
32h 27m1 stop
$697Air Canada
Find Deal
Sat, Nov 2 - Thu, Nov 21
4:55 pm - 9:50 pmIAH-LIS
23h 55m1 stop
7:25 pm - 2:10 pmLIS-IAH
24h 45m1 stop
$706British Airways
Find Deal
Wed, Oct 30 - Tue, Nov 5
9:00 pm - 6:00 pmIAH-LIS
15h 00m1 stop
6:50 pm - 1:45 pmLIS-IAH
24h 55m1 stop
$729British Airways
Find Deal
Wed, Sep 18 - Tue, Sep 24
5:40 am - 7:55 amIAH-LIS
21h 15m1 stop
6:35 am - 11:41 pmLIS-IAH
23h 06m2 stops
$756American Airlines
Find Deal
Fri, Nov 1 - Fri, Nov 15
7:39 pm - 5:45 pmIAH-LIS
17h 06m2 stops
11:20 am - 12:04 amLIS-IAH
18h 44m2 stops
$757American Airlines
Find Deal
Wed, Oct 30 - Tue, Nov 5
11:30 am - 11:15 amIAH-LIS
17h 45m2 stops
5:40 am - 6:16 pmLIS-IAH
18h 36m2 stops
$900Delta
Find Deal
Tue, Sep 24 - Tue, Oct 1
3:50 pm - 5:55 pmIAH-LIS
20h 05m1 stop
5:00 am - 1:25 pmLIS-IAH
14h 25m1 stop
$1,033Delta
Find Deal
Mon, Jun 3 - Fri, Jun 14

Flights from George Bush Intcntl to Lisbon - Travel Insights & Trends

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

What’s the cheapest day of the week to fly from Houston George Bush Airport to Lisbon?

The average price of all flights from Houston George Bush Intcntl Airport to Lisbon clicked on KAYAK for each day over the last 12 months.
If your flying dates are flexible, you should consider flying to Lisbon on a Wednesday, as we generally find the cheapest rates on that day for this route. On the other hand, Saturday is the most expensive day to fly from Houston George Bush Airport to Lisbon. For your return ticket, we recommend flying on a Wednesday and avoiding Thursdays for the best deals.

What is the cheapest month to fly from Houston George Bush Intcntl Airport to Lisbon?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Houston George Bush Intcntl Airport to Lisbon, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Houston George Bush Intcntl Airport to Lisbon is February, where tickets cost $777 on average. On the other hand, the most expensive months are May and June, where the average cost of tickets is $1,681 and $1,608 respectively.

How far in advance should I book a flight from Houston George Bush Intcntl Airport to Lisbon?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Houston George Bush Intcntl Airport to Lisbon, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Houston George Bush Intcntl Airport to Lisbon, you should book around 3 days before departure. For the absolute cheapest price, our data suggests you should book 40 days before departure.

Which airlines provide the cheapest flights from Houston George Bush Airport to Lisbon?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 72 hours, the cheapest one-way ticket from Houston George Bush Airport to Lisbon found on KAYAK was with Air Canada for $652. United Airlines proposed a round-trip connection from $690 and Air Canada from $695.

Good to know

Low season

January

High season

November

Cheapest flight

$360
Best time to beat the crowds with an average 35% drop in price.
Most popular time to fly and prices are also 31% lower on average.
Flight from Houston George Bush Airport to Lisbon

When to book flights from George Bush Intcntl to Lisbon

Are your dates flexible? Find out the best times to travel from George Bush Intcntl to Lisbon based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Houston George Bush Airport to Lisbon flights

  • Does LIS Airport have any currency exchanges?

    As you arrive in Lisbon, you will need to exchange your currency for euros to allow easier transactions while in Portugal. LIS Airport has a few currency exchanges where you can get these services. Unicambios Currency Exchange has a desk at the arrivals desk, at the entrance to the South Pier, at the baggage claim desk, and in the Lisbon Airport Underground Station.

  • Is public transport available from LIS Airport to the city center?

    As is the case with a majority of European cities, Lisbon is well connected to a public transport system that allows the locals to move from one point to another with ease. Humberto Delgado Airport has a subway station with a line connecting directly to the city center. This is one of the cheapest ways to get to the city center. However, if you would rather go for convenience, taking a taxi would be a better idea since they will drop you off at any destination you want.

  • How far is IAH from downtown Houston?

    George Bush Intercontinental Airport is about two miles away from downtown Houston meaning travelers have to deal with a conveniently short commute to the airport. This gives you multiple options since you can either take a taxi or use the metro to get to the airport. In terms of convenience, a taxi is the best option since they will pick you up wherever you are and drop you off at the airport, right outside the terminal buildings.

  • How can I get cheaper flight tickets?

    You can save a few dollars on flight tickets by booking your tickets a month or two in advance. by booking this early, you will be able to avoid the price hikes that usually happen as the date of travel approaches. You should also consider booking connecting flights instead of one direct flight if possible. this is because most airlines usually charge higher prices for the convenience of flying directly.

  • What is the cheapest flight from Houston George Bush Intcntl Airport to Lisbon?

    In the last 3 days, the lowest price for a flight from Houston George Bush Intcntl Airport to Lisbon was $360 for a one-way ticket and $686 for a round-trip.

  • Do I need a passport to fly between Houston George Bush Airport and Lisbon?

    Yes, you’ll need a passport to travel to Lisbon from Houston George Bush Airport.

  • Which aircraft models fly most regularly from Houston George Bush Airport to Lisbon?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Houston George Bush Airport to Lisbon?

    Star Alliance, oneworld, and SkyTeam are the airline alliances operating flights between Houston George Bush Airport and Lisbon, with Star Alliance being the most commonly used for this route.

  • What is the most popular layover when flying to Lisbon from Houston George Bush Airport?

    London is the most popular layover city among KAYAK users traveling from Houston George Bush Airport to Lisbon.

  • Which is the best airline for flights from Houston to Lisbon, Delta or KLM?

    The two airlines most popular with KAYAK users for flights from Houston to Lisbon are Delta and KLM. With an average price for the route of $1,128 and an overall rating of 8.0, Delta is the most popular choice. KLM is also a great choice for the route, with an average price of $1,097 and an overall rating of 7.8.

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

    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 from Houston George Bush Airport to Lisbon.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Lisbon from 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 from Houston George Bush Airport to Lisbon?

    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 Lisbon with an airline and back to Houston George Bush Airport with another airline. Booking your flights between Houston George Bush Airport and LIS can sometimes prove cheaper using this method.

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

    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 Lisbon from Houston George Bush Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding a cheap flight from IAH to Lisbon

  • When flying out of George Bush Intercontinental Airport (IAH), ensure you arrive at the airport at least 3 hours before your departure time. Arriving this early gives you enough time to navigate the long security queues and ensures that you are ready for boarding once the gates open.
  • If you plan to leave your car at IAH, consider the offsite parking lots instead of using airport parking. Offsite parking is usually significantly cheaper than airport parking and you could end up saving up to fifty percent.
  • Traveling mums will be happy to hear that Humberto Delgado Airport (LIS) has multiple baby care facilities all over Terminals 1 and 2. These rooms feature a range of amenities that include changing tables, sinks, countertops, and electric outlets.
  • When flying out of IAH, you should consider staying at Houston Airport Marriott at George Bush Intercontinental the night before. This hotel is conveniently located at the airport thus eliminating the need for a long airport commute. It also is connected to all terminals via an underground tram service meaning you’re almost guaranteed to arrive on time.
  • Air France, KLM, American Airlines, and United Airlines each have a lounge at George Bush Intercontinental Airport. You should therefore consider booking your flight with one of these airlines to enjoy the lounge facilities before your flight.
See more tips

Top 5 airlines serving from George Bush Intcntl to Lisbon

 
See real verified KAYAK customer reviews for airlines flying from Houston to Lisbon. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from George Bush Intcntl to Lisbon? 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.
8.0
DeltaOverall score based on 10818 reviews
8.6Crew
8.0Entertainment
7.4Food
8.2Boarding
7.9Comfort
Airline reviews

The gate area was incredibly short staffed, with one representative manning 4-5 flights, which caused a 3 hr delay in boarding even though the plane was all ready to leave. Other flights also were delayed because of this. The flight crew was awesome and I feel bad for the only gate worker on call, but Delta needs to hire more employees.

2.0 MediocreAnonymous, May 2024AVL - LGA
Read more about Delta reviews

The gate area was incredibly short staffed, with one representative manning 4-5 flights, which caused a 3 hr delay in boarding even though the plane was all ready to leave. Other flights also were delayed because of this. The flight crew was awesome and I feel bad for the only gate worker on call, but Delta needs to hire more employees.

Very frustrated with boarding gate crew. She announced the plane was small and they would be limiting us to one item to carry on. Not a problem for me as I understand the tiny planes have limited space!! Not the case here! It was a rather large plane and had plenty of room for bags! So because I don’t want to be one of “those people” who ignores the request to check a carry on I did so asking if I would be able to pick it up at the bottom of the ramp on arrival in Knoxville to which she responded “yes”! Then I watched as every other passenger held onto their 2 items and boarded!! Then when we arrived in Knoxville our 2 carry ons had been put with all the other luggage and we had to go to baggage pick up and wait for all the big checked bags to come off the carousel! So she lied!! Frustrating. Next time I won’t be so nice!

It was a good experience except when boarding a female flight attendant did not go out of her way to assist my teenage daughters in finding space for their carry-ons after their compartments were full.

On time departure, smooth trip, flight attendant told through passengers the gate we would arrive at and the gate our outbound flight was departing from. Early arrival

Checking in at the airport the agent only booked the first keg of my trip and had my checked luggage going to the airport with a layover! Never was issued a boarding pass for the second leg or received sticker fir my checked bag. All was well in the end! Delta agents helped to resolve the situation!!!

Delayed due to an ill passenger after loading. Not preventable on Delta's part. Was in first class. The seats are becoming worn and detaching from their velcro attachments. Only got snacks on flight. The attendant was not the friendliest.

I would fly again the whole experience was great. The only feed back I can give that they don't do that American Airlines does is the crew there is more humorous with boarding and thank their passengers. It makes it more fun to fly with them. I would however fly Delta again.

Big plane, long flight, absolutely no leg room and basically non existent air! I am 5”4’ and always travel Main Cabin, I was miserable on this plane and could barely move when we arrived in Cabo due to the cramped leg area!

From Atlanta to Cabo I would have hoped on a plane that size I would have been able to breathe and wiggle my feet a little! The leg room in that plane is non existent and I am only 5”4’. And the air vent either wasn’t working very well or just could not blow air from the ceiling to the seat area as I was suffocating through the entire flight! And please don’t say I would have been more comfortable in first class because I cannot afford those rates and have always travelled Main Cabin without issues !

The pilots were good. Disappointing when planes don't have electrical ports

The check in was horrible. I stood in line for 1 hour to check in with an Air France ticket. Then I was told I had to go to Delta counter onstead to check in instead. It made no sense.

Generally good. The crew is excellent. The food could be better.

Good aorcraft 777 but Worst food ever Breakfast was a bû’with matonnaise… Staff was nice but invisible most of the flight

Business class in the second leg - CDG-EVN was a disaster.

worst experience ever i choose my seat in advance and also have my seat selected in my boarding and the they told me that my seat has been changed without notify me

No bording was given for next trip on same carrier, food was very moderate.

No birding was given for next trip on same carrier, food was very moderate.

We transited through Chad and what was supposed to be a 1hr 20 minutes transit time lasted over 4hrs. We didn't get regular updates until we complained. After a 10hr flight from Paris no form of refreshment given and finally arrived Abuja over 6hrs later and none of my bags came

The line at boarding was not well organized and managed

Je n'ai pas pû incliner mon siège et une des hôtesses ne comprenait pas ce que je disais. Je devais parler fort

There was a group of school age passengers that were very loud and unruly with their chaperones were no where to be found.

Trip was smooth bumpy from the wind but no issues at all the crew attendant was very pleasant and had great customer service

I liked everything about the flight. The service was excellent!

Delayed a day due to snow storm. Was upgraded. That kind of made up for significant delays from FLL to COS with no compensation or acknowledgement.

The Polaris experience is top notch. From departure lounge to arrival lounge. Everything was top notch. One of the best first class experience

The leg space between me and the seat in front of me was excellent.

Over two hours wait to get wheelchair assistance from arrival to the departure gate for LA was unreasonable even though there appreared to be heavy demand.

The seats were uncomfortable. The flight was almost 9 hours and they didn’t serve lunch

Got automatically assigned a middle seat, unless I fork out extra money for seat assigment.

The crew was nice but the people going to Orange County are so entitled. Everyone thinks everything is suppose for be perfect for them. Tough crowd.

This is not a Business Class equipped airplane and even the crew apologize before take over BUT BUT Air Canada charged full business class fare

All was good, except our baggage was lost for most of a day. We are thankful that it was found quickly and delivered to our hotel. Rouge was fine outside of that problem.

You do not have a space for flight cancelled. BUT!!! Air Canada handled it great. Was booked on another airline for the next day. The original flight was booked solid. But he precheck by the maintenance found a mechanical problem and the plane was not safe to fly. It was an inconvenience to have to wait until next day but I would rather arrive safely.

Very good other than we have to wait for one crew and we’re delayed and the pilot and his co- pilot has to make a difference to be right on time arrival. Disappointed about no food service also.

I had written all my complaints on my trip from Grand Junction to Denver so I will repeat it here! I was absolutely appalled that I had to pay for a regular seat that I choose 24 hrs before boarding! Also I checked my large bag which I had to pay for as well, and by the time I boarded all the room in the bins were gone so also had to check that one. I noticed people pulling out oversized suitcases, bigger than the measurements stated for carry on, and also large pack packs stuffed full! So these people were taking up 2 or 3 spaces that the rest of us should have been able to use but couldn’t! NoTV on the flight! Thankfully I had downloaded the United Airlines app and was able to watch movies on my phone. Don’t remember the last time I flew in a plane with no movie screens!

I was appalled to have to pay for just a regular seat when I went to book 24 hrs before my flight! Because it was only an hour flight I didn’t choose a seat from Grand Junction to Denver, but I did for Toronto and had to pay just to choose a regular available seat! In my 60+ years of flying this was the first time I have heard of this. Also, allowing people to bring on “huge “ suitcases, not carry on size, but much bigger, and then a large pack pack stuffed. So they take up all the room in the overhead bins and if we are later boarding, there is no room so we have to check our small carry on. I have already paid for and checked in one bag! I certainly will not choose to fly with United again unless it is the “only” airline available!

Easy boarding, roomy seats, plenty of good food, very helpful snd friendly staff. Very smooth flight! Only thing that could have been better was to have cranberry juice. Women like this as it helps avoid UTI’s and not as sweet as other juices.

The crew was friendly, the seats are too small. Air travel is barely tolerable anymore.

Food was icecold or frozen including breakfast. Hopeless service. Rude crew.

The flight was very uncomfortable and there was no snacks served for the 13 hours international flight. In addition, the flight was delayed 3 hours

We missed the flight to Barcelona because the flight from Baltimore was delayed. We flew on Vueling VW6653. Our luggage didn’t arrive. Please help us get our luggage. We are staying at Hotel Gran Via in Barcelona

The seats were tiny, being of a fairly petite build, I don’t usually expect to feel crammed and cramped in a seat, but I definitely was on this flight. I couldn’t even bend over to get anything out from under the seat in front and getting up to go to the bathroom at night with the seat backs reclined was nearly impossible. I had to do gymnastics to get over and out. For an airline that does long flights overnight, it’s kind of ridiculous.

Not connecting flights. Missed my flight from Dublin to Liverpool because I arrived at Dublin one hour too late. For this mistake, they offered me a flight from Dublin to Manchester. Thats great and all, but I waste time and money to commute to Liverpool. Be sure to check the time of your connecting flights, because they sure don’t when they sell it to you

Excellent! Great flight attendants, good food (in business class, at least), very comfortable. Touchscreen and remote wasn’t great.

In economy and food was ok, but with limited leg space (and I was in a 2 seat configuration) it was difficult to eat with a tiny seat tray. I spilt wine on my trousers. First time on British Air (I usually fly Turkish Air) and in a 777. Heathrow was pleasant but changing terminals awkward.

Starting with the flight Cairo to London the plain was so poor no entertainment at all uncomfortable seats although it’s 5 hours long,then an American airline plain took me from London to Miami it was a bad experience the crew most of flight time not available and they asked us to help our selves for any snacks if we need. From Miami to London actually was perfect flight with a huge plain and perfect crew but from London to Cairo was horrible plain with stiff fixed seats not movable no entertainment or wi fi very poor Menu which is unacceptable for a business class

I've done hundreds of flights in my life, and this flight was one of the best I've ever taken, From beginning to end, everything went smoothly, professionally, and with a smile and friendly attitude from all employees I interacted with. The food was delicious (and free), as were the drinks. There was just a genial and effective way in the way that British Airways organized the flight -that reminded of days in the 70's, 80's, and 90's, when flying was a fun, and exciting adventure. I enjoyed and had confidence in the abilities of the flight crew, I'll be flying British Airways several more times this summer. Thank you so much for the great experience! Cheryl Olso

My baggage did not arrived with me. Took 3 days to get it after so may calls and follow up

Terrible! I missed my flight to my final destination and British airlines and American Airlines keep pointing fingers on each other’s. Nobody wants to take responsibility

Terrible. Flight was 3 hours delayed and I missed my other flight to my final destination

Book cheap flights from Houston to Lisbon

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Houston to Lisbon found on KAYAK in the last 72 hours.
6/24Mon
2 stops
39h 02mIAH-LIS
$360
7/31Wed
3 stops
29h 51mIAH-LIS
$413
9/24Tue
1 stopAir Canada
15h 05mIAH-LIS
$652
10/21Mon
1 stopBritish Airways
18h 32mIAH-LIS
$745
10/21Mon
2 stopsAmerican Airlines
16h 55mIAH-LIS
$761
6/24Mon
1 stopBritish Airways
20h 25mIAH-LIS
$848
8/31Sat
2 stopsAir Canada
40h 55mIAH-LIS
$877
8/31Sat
1 stopUnited Airlines
32h 33mIAH-LIS
$898
5/21Tue
2 stopsAmerican Airlines
25h 01mIAH-LIS
$973
5/21Tue
3 stopsUnited Airlines
16h 40mIAH-LIS
$4,712

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Last minute flights from George Bush Intcntl to Lisbon

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Houston to Lisbon that are departing in the next 10 days.
5/11Sat
multi-stop
28h 05mIAH-LIS
5/24Fri
multi-stop
32h 47mLIS-IAH
$1,020
5/11Sat
multi-stop
27h 05mIAH-LIS
5/21Tue
multi-stop
37h 17mLIS-IAH
$1,031
5/8Wed
multi-stopUnited Airlines
12h 30mIAH-LIS
5/15Wed
multi-stopUnited Airlines
34h 45mLIS-IAH
$1,547
5/8Wed
multi-stopUnited Airlines
14h 22mIAH-LIS
5/15Wed
multi-stopUnited Airlines
22h 50mLIS-IAH
$1,561
5/11Sat
multi-stopAir Canada
13h 35mIAH-LIS
5/29Wed
multi-stopAir Canada
16h 06mLIS-IAH
$1,891
5/11Sat
multi-stopBritish Airways
20h 25mIAH-LIS
5/29Wed
multi-stopBritish Airways
16h 10mLIS-IAH
$1,899
5/11Sat
multi-stopAir Canada
13h 35mIAH-LIS
5/25Sat
multi-stopAir Canada
17h 46mLIS-IAH
$1,941
5/11Sat
multi-stopBritish Airways
20h 25mIAH-LIS
5/26Sun
multi-stopBritish Airways
25h 00mLIS-IAH
$1,958
5/8Wed
multi-stopAmerican Airlines
20h 50mIAH-LIS
5/19Sun
multi-stopAmerican Airlines
22h 39mLIS-IAH
$2,074
5/8Wed
multi-stopAmerican Airlines
18h 10mIAH-LIS
5/19Sun
multi-stopAmerican Airlines
18h 54mLIS-IAH
$2,077

Search by stops

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Houston George Bush Airport - Lisbon Flights

Departure:

Houston George Bush Airport (IAH)United States

Destination:

Lisbon (LIS)Portugal

Return flight deals:

Lisbon - Houston George Bush Airport

Cabin classes:

Browse destinations: