HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Barcelona

$242+ Cheap flights from George Bush Intcntl (IAH) to Barcelona

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 10/29. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — BCN
Oct 25 — Nov 11
Sat 10/25
Sat 11/1
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from George Bush Intcntl to Barcelona 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.

Cheapflights Tip: The best prices from Houston George Bush Intcntl to Barcelona are usually found in February or October, booked 84 days in advance, depart on a Tuesday or Sunday and return on a Monday

Cheap flight deals from George Bush Intcntl to Barcelona

Discover tips and strategies to find the most affordable flight options for your journey from George Bush Intcntl (IAH) to Barcelona (S37). 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 September 25, 2025.

Round-trip from

$597
(United Airlines)

One-way from

$242
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$820
From Houston George Bush Intcntl to Barcelona
Search Deals
One-way flight from Houston George Bush Intcntl to Barcelona
Search Deals
Highest demand for flights based on searches. 29% potential increase in price ($379 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($49 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

Find flight deals from George Bush Intcntl to Barcelona

Cheapest flights from George Bush Intcntl to Barcelona
Explore the most affordable flight options available from George Bush Intcntl to Barcelona. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 25, 2025.

This United Airlines deal was found by Cheapflights users on 9/24. 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.
Mon 12/811:20 amIAH - BCN
1 stop15h 15mUnited Airlines
Mon 12/151:45 pmBCN - IAH
1 stop31h 50mUnited Airlines
Deal found 9/24$597
This United Airlines deal was found by Cheapflights users on 9/25. 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.
Mon 11/2411:50 amIAH - BCN
1 stop14h 45mUnited Airlines
Mon 12/11:45 pmBCN - IAH
1 stop31h 50mUnited Airlines
Deal found 9/25$598
This Kiwi.com deal was found by Cheapflights users on 9/24. 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.
Thu 12/411:00 amIAH - BCN
1 stop19h 20mMultiple Airlines
Mon 12/156:35 pmBCN - IAH
2 stops25h 26mMultiple Airlines
Deal found 9/24$599
This FlightHub deal was found by Cheapflights users on 9/25. 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.
Tue 10/79:00 pmIAH - BCN
1 stop37h 05mTurkish Airlines
Tue 10/216:30 pmBCN - IAH
1 stop25h 10mTurkish Airlines
Deal found 9/25$600
This United Airlines deal was found by Cheapflights users on 9/24. 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 12/39:46 amIAH - BCN
2 stops16h 49mUnited Airlines
Mon 12/151:45 pmBCN - IAH
1 stop31h 50mUnited Airlines
Deal found 9/24$602
This Kiwi.com deal was found by Cheapflights users on 9/24. 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.
Fri 12/511:00 amIAH - BCN
1 stop19h 20mMultiple Airlines
Thu 12/116:35 pmBCN - IAH
1 stop31h 58mMultiple Airlines
Deal found 9/24$603
This United Airlines deal was found by Cheapflights users on 9/24. 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.
Mon 11/311:50 amIAH - BCN
1 stop14h 45mUnited Airlines
Sun 11/91:35 pmBCN - IAH
2 stops33h 10mUnited Airlines
Deal found 9/24$606
This British Airways deal was found by Cheapflights users on 9/24. 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.
Wed 12/33:50 pmIAH - BCN
1 stop12h 20mBritish Airways
Wed 12/1012:20 pmBCN - IAH
1 stop32h 45mBritish Airways
Deal found 9/24$608
This CrystalTravel deal was found by Cheapflights users on 9/25. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/54:30 pmIAH - BCN
1 stop13h 30mLufthansa
Sat 11/156:50 amBCN - IAH
1 stop14h 45mLufthansa
Deal found 9/25$611
This United Airlines deal was found by Cheapflights users on 9/24. 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.
Sat 12/66:14 pmIAH - BCN
1 stop31h 06mUnited Airlines
Mon 12/151:45 pmBCN - IAH
1 stop31h 50mUnited Airlines
Deal found 9/24$614

Cheapflights Fare Finder

 
Customize your flight search to find flights from George Bush Intcntl to Barcelona 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 September 25, 2025.
Use the filters below to find and compare flights from Houston George Bush Intcntl Airport to Barcelona that are best for you.

Fly from

George Bush Intcntl

Fly to

Barcelona

Route

Depart

Return

Price

HoustonBarcelona

IAH - BCN

IAHBCN

Houston George Bush Intcntl

Mon 11/24

11:50 am-9:35 am

1 stop14h 45m

Barcelona-El Prat

Mon 12/1

1:45 pm-2:35 pm

1 stop31h 50m

$598

HoustonBarcelona

IAH - BCN

IAHBCN

Houston George Bush Intcntl

Wed 12/3

3:50 pm-11:10 am

1 stop12h 20m

Barcelona-El Prat

Wed 12/10

12:20 pm-2:05 pm

1 stop32h 45m

$608

HoustonBarcelona

IAH - BCN

IAHBCN

Houston George Bush Intcntl

Mon 11/3

7:20 am-9:35 am

2 stops19h 15m

Barcelona-El Prat

Sun 11/9

1:35 pm-3:45 pm

2 stops33h 10m

$610

HoustonBarcelona

IAH - BCN

IAHBCN

Houston George Bush Intcntl

Fri 10/31

12:15 pm-8:20 am

1 stop14h 05m

Barcelona-El Prat

Fri 11/7

6:50 am-2:35 pm

1 stop14h 45m

$632

HoustonBarcelona

IAH - BCN

IAHBCN

Houston George Bush Intcntl

Thu 12/4

9:50 pm-10:25 am

1 stop29h 35m

Barcelona-El Prat

Wed 12/10

11:15 am-2:05 pm

1 stop33h 50m

$633

HoustonBarcelona

IAH - BCN

IAHBCN

Houston George Bush Intcntl

Mon 12/8

9:45 pm-7:45 pm

1 stop15h 00m

Barcelona-El Prat

Sun 12/14

6:40 am-8:00 pm

1 stop20h 20m

$633

HoustonBarcelona

IAH - BCN

IAHBCN

Houston George Bush Intcntl

Fri 12/5

1:34 pm-9:00 am

1 stop12h 26m

Barcelona-El Prat

Tue 12/9

11:00 am-8:31 pm

1 stop16h 31m

$633

HoustonBarcelona

IAH - BCN

IAHBCN

Houston George Bush Intcntl

Tue 12/9

3:50 pm-7:45 pm

1 stop20h 55m

Barcelona-El Prat

Sun 12/14

6:40 am-8:00 pm

1 stop20h 20m

$633

HoustonBarcelona

IAH - BCN

IAHBCN

Houston George Bush Intcntl

Sat 12/6

6:14 pm-8:20 am

1 stop31h 06m

Barcelona-El Prat

Sun 12/14

10:30 am-8:16 pm

1 stop16h 46m

$639

HoustonBarcelona

IAH - BCN

IAHBCN

Houston George Bush Intcntl

Thu 12/4

8:15 pm-9:35 am

2 stops30h 20m

Barcelona-El Prat

Mon 12/8

1:45 pm-2:35 pm

1 stop31h 50m

$645

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/25

Showing 1-10 of 21 results
1
2
3

Best time to book a flight from George Bush Intcntl to Barcelona

Have a flexible travel schedule? Discover the best time to fly to Barcelona from George Bush Intcntl with our price prediction graph.
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 Barcelona

How far ahead should I book a flight from Houston George Bush Intcntl Airport to Barcelona?

Use this chart to determine the optimal time to book a round-trip flight from George Bush Intcntl to Barcelona. Price data was last updated on September 19, 2025.

The price you pay for your flight from Houston George Bush Intcntl Airport to Barcelona may vary depending on when you book. For the best chance of a lower fare, look to book 84 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 Barcelona?

Currently, January is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Barcelona (average of $523). Flying from Houston George Bush Intcntl Airport to Barcelona in June is currently the most expensive (average of $1,060). 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.

What is the cheapest time of day to fly from IAH to BCN?

Find hourly flight availability from George Bush Intcntl to Barcelona. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 25, 2025.

A simple way to save on the total cost of your ticket is to fly from Houston George Bush Intcntl Airport to Barcelona in the evening. If you’re flexible enough to do this you can expect to save up to 33% on your trip compared to booking a flight in the morning.

What is the cheapest day to fly from Houston George Bush Intcntl Airport to Barcelona?

Use this chart to determine the cheapest time to fly round-trip from George Bush Intcntl to Barcelona. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Houston George Bush Intcntl Airport to Barcelona flight should consider departing on Tuesday evenings when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Barcelona

Get insights into the airlines that provide service to Barcelona. 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 Barcelona. Reviews last updated September 25, 2025.
See what other customers who have flown with United Airlines, Turkish Airlines, and American Airlines from Houston George Bush Intcntl Airport to Barcelona have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,926 reviews

Comfort

7.3

Boarding

7.7

Food

6.6

Crew

8.1

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
United Airlines
7.4
Good
8,926 reviews
United Airlines
7.4
Good
8,926 reviews

Comfort

7.3

Boarding

7.7

Food

6.6

Crew

8.1

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
Turkish Airlines
7.3
Good
3,977 reviews
United Airlines
7.4
Good
8,926 reviews

Comfort

7.3

Boarding

7.7

Food

6.6

Crew

8.1

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,926 reviews

Comfort

7.3

Boarding

7.7

Food

6.6

Crew

8.1

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
Iberia
7.0
Good
2,955 reviews
United Airlines
7.4
Good
8,926 reviews

Comfort

7.3

Boarding

7.7

Food

6.6

Crew

8.1

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
British Airways
6.7
Okay
7,399 reviews
United Airlines
7.4
Good
8,926 reviews

Comfort

7.3

Boarding

7.7

Food

6.6

Crew

8.1

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.

Related info for your journey

Find useful and relevant information for your journey from George Bush Intcntl to Barcelona. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    Airlines like United Airlines and British Airways fly from Houston George Bush Intcntl Airport to Barcelona in about 12h 20m. The time it takes to get you to your destination can typically vary by up to 2h 25m. Houston George Bush Intcntl Airport and Barcelona are separated by a distance of 5232 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Houston George Bush Intcntl Airport to Barcelona round-trip?

    According to our current data, Iberia ($531), KLM ($556), and British Airways ($565) offers the cheapest pricing from Houston George Bush Intcntl Airport to Barcelona. Iberia is priced at 42% lower than the current average price of a flight leaving 3 months from now.

  • Where are the most common layover locations when flying from Houston George Bush Intcntl Airport to Barcelona?

    Houston George Bush Intcntl Airport to Barcelona flights have a layover in Frankfurt am Main most of the time.

  • What are some popular things to do or see while on a layover in Frankfurt am Main?

    If you're on a layover in Frankfurt am Main and looking for things to do, consider visiting Römerberg, Hauptwache, or Festhalle. Römerberg, Hauptwache, and Festhalle can be visited by traveling about 7.4 mi, 7.4 mi, and 6.5 mi respectively from Frankfurt am Main. Those on a layover in Frankfurt am Main in need of a rental car can book one at Frankfurt am Main for about $43.

  • Where are the least popular layover locations for Houston George Bush Intcntl Airport to Barcelona flights?

    The least popular layover on flights from Houston George Bush Intcntl Airport to Barcelona is London.

  • Can I find deals for flights from George Bush Intcntl to Barcelona that include hotel bookings?

    Yes. In addition to deals on George Bush Intcntl to Barcelona flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from George Bush Intcntl to Barcelona?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from George Bush Intcntl to Barcelona.

  • Can I find deals for business class flights from George Bush Intcntl to Barcelona?

    Yes. Cheapflights offers flight deals from George Bush Intcntl to Barcelona by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Houston George Bush Intcntl Airport to Barcelona?

    Currently, January is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Barcelona (average of $523). Flying from Houston George Bush Intcntl Airport to Barcelona in June is currently the most expensive (average of $1,060). 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.

See more FAQs

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 for George Bush Intcntl to Barcelona

See prices for flight routes from nearby airports that may be better suited for you.
Hobby to Barcelona-El Prat flights
George Bush Intcntl to Barcelona-El Prat flights

Top 10 airlines flying from George Bush Intcntl to Barcelona

Discover the top 10 airlines that operate flights from George Bush Intcntl to Barcelona. 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 September 25, 2025.
AirlineCheapestAverageFlexibilityOn-time
IberiaCheapest$531Average$975FlexibilityNo cancel feeOn-time77%
KLMCheapest$556Average$885FlexibilityNo cancel feeOn-time75%
British AirwaysCheapest$565Average$882FlexibilityNo cancel feeOn-time70%
DeltaCheapest$565Average$868FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$567Average$857FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$572Average$1,044FlexibilityNo cancel feeOn-time69%
Turkish AirlinesCheapest$651Average$742FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$659Average$1,033FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$693Average$1,130FlexibilityNo cancel feeOn-time71%
Air FranceCheapest$780Average$1,192FlexibilityNo cancel feeOn-time77%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.