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$299+ Cheap flights from George Bush Intcntl (IAH) to Glasgow

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 11/20. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — GLA
oct. 11 — oct. 181
sáb. 10/11
sáb. 10/18
1 adult, Economy
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Cheap flight deals from George Bush Intcntl to Glasgow

Discover tips and strategies to find the most affordable flight options for your journey from George Bush Intcntl (IAH) to Glasgow (GG1). 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 septiembre 11, 2025.

Round-trip from

$574
(British Airways)

One-way from

$299
(Kiwi.com)

Popular in

June

Cheapest in

October

Average price

$787
From Houston George Bush Intcntl to Glasgow
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One-way flight from Houston George Bush Intcntl to Glasgow
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Highest demand for flights based on searches. 21% potential increase in price ($228 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($31 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from George Bush Intcntl to Glasgow

Cheapest flights from George Bush Intcntl to Glasgow
Explore the most affordable flight options available from George Bush Intcntl to Glasgow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septiembre 11, 2025.

This British Airways deal was found by Cheapflights users on 9/10. 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.
lun. 11/249:45 pmIAH - GLA
1 stop12h 50mBritish Airways
mié. 12/39:45 amGLA - IAH
2 stops17h 43mBritish Airways
Deal found 9/10$574
This American Airlines deal was found by Cheapflights users on 9/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/2412:10 pmIAH - GLA
2 stops15h 40mAmerican Airlines
mié. 12/311:40 amGLA - IAH
2 stops18h 29mAmerican Airlines
Deal found 9/10$577
This oojo deal was found by Cheapflights users on 9/10. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/710:55 amIAH - GLA
2 stops19h 15mBritish Airways
mar. 10/2810:50 amGLA - IAH
2 stops31h 45mBritish Airways
Deal found 9/10$587
This Expedia deal was found by Cheapflights users on 9/11. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/69:50 pmIAH - GLA
1 stop15h 15mBritish Airways
mar. 11/119:50 amGLA - IAH
2 stops17h 40mBritish Airways
Deal found 9/11$618
This lol.travel deal was found by Cheapflights users on 9/11. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 9/213:30 pmIAH - GLA
1 stop15h 30mVirgin Atlantic
lun. 10/64:55 pmGLA - IAH
1 stop26h 20mVirgin Atlantic
Deal found 9/11$621
This American Airlines deal was found by Cheapflights users on 9/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/65:45 pmIAH - GLA
2 stops15h 25mAmerican Airlines
mar. 11/116:25 amGLA - IAH
2 stops18h 59mAmerican Airlines
Deal found 9/11$625
This American Airlines deal was found by Cheapflights users on 9/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 10/267:12 pmIAH - GLA
2 stops16h 28mAmerican Airlines
sáb. 11/86:35 amGLA - IAH
2 stops16h 45mAmerican Airlines
Deal found 9/10$627
This American Airlines deal was found by Cheapflights users on 9/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 9/213:30 pmIAH - GLA
1 stop22h 20mAmerican Airlines
lun. 10/610:35 amGLA - IAH
2 stops18h 40mAmerican Airlines
Deal found 9/11$631
This American Airlines deal was found by Cheapflights users on 9/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/73:01 pmIAH - GLA
2 stops15h 09mAmerican Airlines
mar. 10/215:50 amGLA - IAH
1 stop13h 55mAmerican Airlines
Deal found 9/11$632
This Expedia deal was found by Cheapflights users on 9/11. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 9/217:23 pmIAH - GLA
2 stops20h 07mMultiple Airlines
lun. 10/68:50 pmGLA - IAH
2 stops28h 13mMultiple Airlines
Deal found 9/11$633

Cheapflights Fare Finder

 
Customize your flight search to find flights from George Bush Intcntl to Glasgow 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 septiembre 11, 2025.
Use the filters below to find and compare flights from Houston George Bush Intcntl Airport to Glasgow that are best for you.

Fly from

George Bush Intcntl

Fly to

Glasgow

Route

Depart

Return

Price

HoustonGlasgow

IAH - GLA

IAHGLA

Houston George Bush Intcntl

lun. 11/24

9:45 pm-4:35 pm

1 stop12h 50m

Glasgow Intl

mié. 12/3

9:45 am-9:28 pm

2 stops17h 43m

$574

HoustonGlasgow

IAH - GLA

IAHGLA

Houston George Bush Intcntl

mar. 11/25

12:10 pm-10:45 am

2 stops16h 35m

Glasgow Intl

mié. 12/3

10:55 am-12:09 am

2 stops19h 14m

$577

HoustonGlasgow

IAH - GLA

IAHGLA

Houston George Bush Intcntl

lun. 11/24

12:10 pm-10:45 am

2 stops16h 35m

Glasgow Intl

mié. 12/3

10:55 am-12:09 am

2 stops19h 14m

$577

HoustonGlasgow

IAH - GLA

IAHGLA

Houston George Bush Intcntl

dom. 9/21

3:30 pm-1:00 pm

1 stop15h 30m

Glasgow Intl

lun. 10/6

4:55 pm-1:15 pm

1 stop26h 20m

$621

HoustonGlasgow

IAH - GLA

IAHGLA

Houston George Bush Intcntl

dom. 10/26

2:23 pm-10:45 am

2 stops15h 22m

Glasgow Intl

dom. 11/9

12:50 pm-11:51 pm

2 stops17h 01m

$627

HoustonGlasgow

IAH - GLA

IAHGLA

Houston George Bush Intcntl

dom. 10/26

7:12 pm-4:40 pm

2 stops16h 28m

Glasgow Intl

sáb. 11/8

6:35 am-5:20 pm

2 stops16h 45m

$627

HoustonGlasgow

IAH - GLA

IAHGLA

Houston George Bush Intcntl

mar. 10/7

3:01 pm-12:10 pm

2 stops15h 09m

Glasgow Intl

mar. 10/21

5:50 am-1:45 pm

1 stop13h 55m

$632

HoustonGlasgow

IAH - GLA

IAHGLA

Houston George Bush Intcntl

dom. 9/21

7:23 pm-9:30 pm

2 stops20h 07m

Glasgow Intl

lun. 10/6

8:50 pm-7:03 pm

2 stops28h 13m

$633

HoustonGlasgow

IAH - GLA

IAHGLA

Houston George Bush Intcntl

mié. 10/15

3:30 pm-10:20 am

1 stop12h 50m

Glasgow Intl

mié. 11/5

9:45 am-9:30 pm

2 stops17h 45m

$639

HoustonGlasgow

IAH - GLA

IAHGLA

Houston George Bush Intcntl

jue. 11/20

6:20 pm-6:55 am

3 stops54h 35m

$311

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

Showing 1-10 of 17 results
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Best time to book a flight from George Bush Intcntl to Glasgow

Have a flexible travel schedule? Discover the best time to fly to Glasgow 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 Glasgow

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

Use this chart to determine the optimal time to book a round-trip flight from George Bush Intcntl to Glasgow. Price data was last updated on August 29, 2025.

The best time to book flights from Houston George Bush Intcntl Airport to Glasgow is 16 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, November is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Glasgow (average of $664). Flying from Houston George Bush Intcntl Airport to Glasgow in June is currently the most expensive (average of $1,150). 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 GLA?

Find hourly flight availability from George Bush Intcntl to Glasgow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated septiembre 11, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 15% on flights from Houston George Bush Intcntl Airport to Glasgow by exploring options for tickets at noon.

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

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

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

Reviews of airlines servicing Glasgow

Get insights into the airlines that provide service to Glasgow. 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 Glasgow. Reviews last updated septiembre 11, 2025.
Peruse reviews from past customers who have flown with American Airlines and British Airways from Houston George Bush Intcntl Airport to Glasgow to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.2
Good
10,000 reviews

Overall

7.2

Comfort

7.2

Boarding

7.5

Crew

8.0

Food

6.4

Entertainment

6.9

Reviews

1 / 20
6.0
Good

sheila,Mar 2025

DFW - MSP

We were delayed for 3 hours with no real reason or offer for compensation
American Airlines
7.2
Good
10,000 reviews
American Airlines
7.2
Good
10,000 reviews

Overall

7.2

Comfort

7.2

Boarding

7.5

Crew

8.0

Food

6.4

Entertainment

6.9

Reviews

1 / 20
6.0
Good

sheila,Mar 2025

DFW - MSP

We were delayed for 3 hours with no real reason or offer for compensation
British Airways
6.7
Okay
7,361 reviews
American Airlines
7.2
Good
10,000 reviews

Overall

7.2

Comfort

7.2

Boarding

7.5

Crew

8.0

Food

6.4

Entertainment

6.9

Reviews

1 / 20
6.0
Good

sheila,Mar 2025

DFW - MSP

We were delayed for 3 hours with no real reason or offer for compensation

Related info for your journey

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

    For as low as $574, British Airways can have you in Glasgow from Houston George Bush Intcntl Airport in 12h 50m. The distance from Houston George Bush Intcntl Airport to Glasgow is about 4560 mi. This flight may include one or multiple stops.

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

    Currently priced at $600, British Airways will fly you from Houston George Bush Intcntl Airport to Glasgow and back. In addition to British Airways, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on American Airlines for as low as $626. These flights start at 27% lower than the current average price 3 months from now.

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

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

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

    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 Glasgow.

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

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

    Currently, November is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Glasgow (average of $664). Flying from Houston George Bush Intcntl Airport to Glasgow in June is currently the most expensive (average of $1,150). 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 5 airlines flying from George Bush Intcntl to Glasgow

Discover the top 5 airlines that operate flights from George Bush Intcntl to Glasgow. 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 septiembre 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$600Average$828FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$626Average$873FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$712Average$1,084FlexibilityNo cancel feeOn-time69%
DeltaCheapest$737Average$1,499FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$886Average$1,192FlexibilityNo cancel feeOn-time75%

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