Cheap flights from Glasgow to Houston George Bush Intcntl Airport from £625

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 17/3. Fares are subject to change and may not be available on all flights or dates of travel.
GLA — IAH
25 Dec — 1 Jan1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from Glasgow to Houston George Bush Intcntl are usually found in February or March, booked 44 days in advance, depart on a Monday or Thursday and return on a Monday

Cheap flight deals from Glasgow to George Bush Intcntl

Discover tips and strategies to find the most affordable flight options for your journey from Glasgow (GG1) to George Bush Intcntl (IAH). 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 25 November 2025.

Round-trip from

£625

Popular in

August

Cheapest in

February

Average price

£847
17/3-31/3
  • 17/3-31/3
  • 5 total stops
  • 68h 06m total
  • Glasgow to Houston
Highest demand for flights based on searches. 9% potential increase in price (£76 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease (£23 potential savings vs. average return price).
Average for round-trip flights in November 2025

Find flight deals from Glasgow to George Bush Intcntl

Enter your travel dates to find the best prices.

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

Wed 17/1205:55GLA - IAH
1 stop14h 10mBritish Airways
Wed 14/115:50IAH - GLA
1 stop15h 00mBritish Airways
Deal found 24/11£1,028

Cheapflights Fare Finder

 
Customise your flight search to find flights from Glasgow to George Bush Intcntl 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 858,174 searches. Data last updated 25 November 2025.
Use the filters below to find and compare flights from Glasgow to Houston George Bush Intcntl Airport that are best for you.

Fly from

Glasgow

Fly to

George Bush Intcntl

Route

Depart

Return

Price

GlasgowHouston

GLA - IAH

GLAIAH

Glasgow Intl

Tue 17/3

07:00-23:51

3 stops45h 51m

Houston George Bush Intcntl

Tue 31/3

11:15-15:30

2 stops22h 15m

£625

GlasgowHouston

GLA - IAH

GLAIAH

Glasgow Intl

Mon 4/5

19:55-22:40

3 stops32h 45m

Houston George Bush Intcntl

Mon 25/5

18:10-09:40

3 stops33h 30m

£682

GlasgowHouston

GLA - IAH

GLAIAH

Glasgow Intl

Tue 17/3

06:25-15:05

1 stop13h 40m

Houston George Bush Intcntl

Tue 31/3

15:30-12:10

1 stop14h 40m

£827

GlasgowHouston

GLA - IAH

GLAIAH

Glasgow Intl

Tue 27/1

06:05-13:30

1 stop13h 25m

Houston George Bush Intcntl

Wed 4/2

09:54-09:55

2 stops18h 01m

£872

GlasgowHouston

GLA - IAH

GLAIAH

Glasgow Intl

Tue 27/1

17:45-14:05

1 stop26h 20m

Houston George Bush Intcntl

Wed 4/2

15:50-10:45

1 stop12h 55m

£873

GlasgowHouston

GLA - IAH

GLAIAH

Glasgow Intl

Thu 22/1

09:55-20:00

1 stop16h 05m

Houston George Bush Intcntl

Mon 26/1

21:45-18:15

1 stop14h 30m

£901

GlasgowHouston

GLA - IAH

GLAIAH

Glasgow Intl

Thu 22/1

09:55-22:24

2 stops18h 29m

Houston George Bush Intcntl

Mon 26/1

11:18-09:50

2 stops16h 32m

£909

GlasgowHouston

GLA - IAH

GLAIAH

Glasgow Intl

Mon 4/5

09:05-19:15

1 stop16h 10m

Houston George Bush Intcntl

Mon 25/5

15:30-10:05

1 stop12h 35m

£927

GlasgowHouston

GLA - IAH

GLAIAH

Glasgow Intl

Tue 16/12

19:10-14:05

1 stop24h 55m

£807

GlasgowHouston

GLA - IAH

GLAIAH

Glasgow Intl

Thu 4/12

12:45-20:00

1 stop13h 15m

£963

Flights are sorted by cheapest return flights first.

Deals found on 23/11

Showing 1-10 of 15 results
1
2

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

Have a flexible travel schedule? Discover the best time to fly to George Bush Intcntl from Glasgow with our price prediction graph.
Estimated return 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 Glasgow to Houston George Bush Intcntl Airport

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

Use this chart to determine the optimal time to book a return flight from Glasgow to George Bush Intcntl. Price data was last updated on 21 November 2025.

To ensure you get the cheapest price possible for a flight from Glasgow to Houston George Bush Intcntl Airport, you should look to book at least 44 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, June is the cheapest month in which you can book a flight from Glasgow to Houston George Bush Intcntl Airport (average of £485). Flying from Glasgow to Houston George Bush Intcntl Airport in August is currently the most expensive (average of £756). 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 GLA to IAH?

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

It’s optimal to fly from Glasgow to Houston George Bush Intcntl Airport in the evening. By choosing this option you can save up to 47% on the cost of your flight, compared to a flight at midday.

Reviews of airlines servicing George Bush Intcntl

Get insights into the airlines that provide service to George Bush Intcntl. 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 George Bush Intcntl. Reviews last updated 25 November 2025.
Read reviews from past customers who have flown with KLM, Virgin Atlantic, andAir France from Glasgow to Houston George Bush Intcntl Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Comfort

7.6

Overall

7.7

Crew

8.4

Food

7.3

Boarding

7.8

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

Comfort

7.6

Overall

7.7

Crew

8.4

Food

7.3

Boarding

7.8

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

Comfort

7.6

Overall

7.7

Crew

8.4

Food

7.3

Boarding

7.8

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

Comfort

7.6

Overall

7.7

Crew

8.4

Food

7.3

Boarding

7.8

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

Comfort

7.6

Overall

7.7

Crew

8.4

Food

7.3

Boarding

7.8

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

Related info for your journey

Find useful and relevant information for your journey from Glasgow to George Bush Intcntl. 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 Glasgow to Houston George Bush Intcntl Airport?

    Departing from Glasgow to Houston George Bush Intcntl Airport will take you 13h 40m. The distance between Glasgow and Houston George Bush Intcntl Airport is about 4560 mi.

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

    Currently priced at £604, KLM will fly you from Glasgow to Houston George Bush Intcntl Airport and back. In addition to KLM, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Virgin Atlantic and British Airways - these airlines can fly you to your destination from £640 and £644, respectively. Users have found that KLM is 36% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Glasgow to Houston George Bush Intcntl Airport one-way?

    One-way options have recently been found by users for as low as £807 on Iberia. Other airlines that offer cheap prices include Finnair from £963 and British Airways from £976 one-way.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Glasgow to George Bush Intcntl 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 Glasgow to Houston George Bush Intcntl Airport?

    Currently, June is the cheapest month in which you can book a flight from Glasgow to Houston George Bush Intcntl Airport (average of £485). Flying from Glasgow to Houston George Bush Intcntl Airport in August is currently the most expensive (average of £756). 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

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Top 9 airlines flying from Glasgow to George Bush Intcntl

Discover the top 9 airlines that operate flights from Glasgow to George Bush Intcntl. 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 858,174 searches. Data last updated 25 November 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest£470Average£673FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
Turkish AirlinesCheapest£495Average£696FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights
FinnairCheapest£525Average£638FlexibilityNo cancel feeOn-time76%
Search Finnair flights
KLMCheapest£604Average£853FlexibilityNo cancel feeOn-time75%
Search KLM flights
Virgin AtlanticCheapest£640Average£858FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
LufthansaCheapest£644Average£793FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
British AirwaysCheapest£644Average£810FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Air FranceCheapest£667Average£1,017FlexibilityNo cancel feeOn-time77%
Search Air France flights
United AirlinesCheapest£726Average£811FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

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Can Cheapflights find flights from Glasgow to George Bush Intcntl with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Glasgow to George Bush Intcntl flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Glasgow to George Bush Intcntl become cheaper?

Yes, Cheapflights offers price alerts on Glasgow to George Bush Intcntl flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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