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$417+ 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 12/27. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — GLA
Nov 25 — Dec 21
Tue 11/25
Tue 12/2
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 October 26, 2025.

Round-trip from

$610
(Delta)

One-way from

$417
(Kiwi.com)

Popular in

June

Cheapest in

April

Average price

$679
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. 20% potential increase in price ($212 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($24 potential savings vs. average RT price).
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Average for round-trip flights in October 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 October 26, 2025.

This Delta deal was found by Cheapflights users on 10/25. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/243:30 pmIAH - GLA
1 stop19h 05mDelta
Wed 12/31:25 pmGLA - IAH
1 stop30h 05mDelta
Deal found 10/25$610
This Delta deal was found by Cheapflights users on 10/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/83:30 pmIAH - GLA
1 stop15h 15mDelta
Tue 12/239:05 amGLA - IAH
1 stop34h 25mDelta
Deal found 10/23$611
This Delta deal was found by Cheapflights users on 10/25. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/246:40 pmIAH - GLA
2 stops15h 55mDelta
Tue 12/21:25 pmGLA - IAH
1 stop30h 05mDelta
Deal found 10/25$614
This Delta deal was found by Cheapflights users on 10/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/87:01 amIAH - GLA
2 stops23h 44mDelta
Wed 12/249:05 amGLA - IAH
1 stop34h 25mDelta
Deal found 10/23$615
This KLM deal was found by Cheapflights users on 10/24. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/243:30 pmIAH - GLA
1 stop15h 15mKLM
Wed 12/36:05 amGLA - IAH
2 stops17h 39mKLM
Deal found 10/24$620
This Delta deal was found by Cheapflights users on 10/24. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/253:30 pmIAH - GLA
1 stop19h 05mDelta
Wed 12/36:05 amGLA - IAH
2 stops21h 06mDelta
Deal found 10/24$621
This Delta deal was found by Cheapflights users on 10/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/87:01 amIAH - GLA
2 stops19h 29mDelta
Thu 12/256:05 amGLA - IAH
2 stops41h 28mDelta
Deal found 10/23$625
This Air France deal was found by Cheapflights users on 10/24. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/253:30 pmIAH - GLA
1 stop24h 40mMultiple Airlines
Wed 12/35:20 pmGLA - IAH
1 stop26h 10mMultiple Airlines
Deal found 10/24$630
This KAYAK deal was found by Cheapflights users on 10/25. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/264:30 pmIAH - GLA
1 stop13h 35mLufthansa
Thu 12/412:50 pmGLA - IAH
2 stops39h 57mLufthansa
Deal found 10/25$650
This KAYAK deal was found by Cheapflights users on 10/25. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/236:36 pmIAH - GLA
2 stops22h 34mLufthansa
Thu 12/412:50 pmGLA - IAH
2 stops36h 05mLufthansa
Deal found 10/25$655

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 October 26, 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

Tue 11/25

3:30 pm-4:35 pm

1 stop19h 05m

Glasgow Intl

Wed 12/3

9:05 am-1:30 pm

1 stop34h 25m

$610

HoustonGlasgow

IAH - GLA

IAHGLA

Houston George Bush Intcntl

Tue 11/25

3:30 pm-4:35 pm

1 stop19h 05m

Glasgow Intl

Thu 12/4

9:05 am-1:30 pm

1 stop34h 25m

$610

HoustonGlasgow

IAH - GLA

IAHGLA

Houston George Bush Intcntl

Mon 11/24

3:30 pm-4:35 pm

1 stop19h 05m

Glasgow Intl

Wed 12/3

1:25 pm-1:30 pm

1 stop30h 05m

$610

HoustonGlasgow

IAH - GLA

IAHGLA

Houston George Bush Intcntl

Tue 11/25

3:30 pm-4:35 pm

1 stop19h 05m

Glasgow Intl

Tue 12/2

9:05 am-1:30 pm

1 stop34h 25m

$610

HoustonGlasgow

IAH - GLA

IAHGLA

Houston George Bush Intcntl

Mon 11/24

3:30 pm-4:35 pm

1 stop19h 05m

Glasgow Intl

Tue 12/2

9:05 am-1:30 pm

1 stop34h 25m

$610

HoustonGlasgow

IAH - GLA

IAHGLA

Houston George Bush Intcntl

Tue 12/9

3:30 pm-12:45 pm

1 stop15h 15m

Glasgow Intl

Wed 12/24

5:20 pm-1:30 pm

1 stop26h 10m

$611

HoustonGlasgow

IAH - GLA

IAHGLA

Houston George Bush Intcntl

Mon 12/8

3:30 pm-4:35 pm

1 stop19h 05m

Glasgow Intl

Wed 12/24

1:25 pm-1:30 pm

1 stop30h 05m

$611

HoustonGlasgow

IAH - GLA

IAHGLA

Houston George Bush Intcntl

Mon 12/8

3:30 pm-12:45 pm

1 stop15h 15m

Glasgow Intl

Thu 12/25

6:05 am-1:30 pm

1 stop13h 25m

$611

HoustonGlasgow

IAH - GLA

IAHGLA

Houston George Bush Intcntl

Tue 12/9

12:40 pm-12:45 pm

2 stops18h 05m

Glasgow Intl

Tue 12/23

1:25 pm-1:30 pm

1 stop30h 05m

$615

HoustonGlasgow

IAH - GLA

IAHGLA

Houston George Bush Intcntl

Sat 12/27

9:34 pm-8:20 am

2 stops52h 46m

$417

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/24

Showing 1-10 of 14 results
1
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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 October 24, 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, October is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Glasgow (average of $578). Flying from Houston George Bush Intcntl Airport to Glasgow in June is currently the most expensive (average of $978). 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 October 26, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 11% on flights from Houston George Bush Intcntl Airport to Glasgow by exploring options for tickets in the evening.

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 Friday mornings when fares are most often at their lowest. Saturday mornings 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 October 26, 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
11,031 reviews

Overall

7.2

Entertainment

6.9

Comfort

7.2

Crew

8.0

Food

6.4

Boarding

7.5

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
11,031 reviews
American Airlines
7.2
Good
11,031 reviews

Overall

7.2

Entertainment

6.9

Comfort

7.2

Crew

8.0

Food

6.4

Boarding

7.5

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
7,476 reviews
American Airlines
7.2
Good
11,031 reviews

Overall

7.2

Entertainment

6.9

Comfort

7.2

Crew

8.0

Food

6.4

Boarding

7.5

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 $610, Delta can have you in Glasgow from Houston George Bush Intcntl Airport in 19h 05m. The distance from Houston George Bush Intcntl Airport to Glasgow is about 4560 mi.

  • 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 26% 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, October is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Glasgow (average of $578). Flying from Houston George Bush Intcntl Airport to Glasgow in June is currently the most expensive (average of $978). 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

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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 October 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$600Average$845FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$626Average$927FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$712Average$1,065FlexibilityNo cancel feeOn-time69%
DeltaCheapest$758Average$1,294FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$886Average$1,192FlexibilityNo cancel feeOn-time75%

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