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Cheap flights from Houston George Bush Intcntl Airport to Istanbul Airport from £458

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 26/12. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — IST
15 Jan — 22 Jan1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from Houston George Bush Intcntl to Istanbul are usually found in September or October, booked 57 days in advance, depart on a Thursday or Tuesday and return on a Tuesday

Cheap flight deals from George Bush Intcntl to Istanbul

Enter your travel dates to find the best prices.

Cheapest flights from George Bush Intcntl to Istanbul
Explore the most affordable flight options available from George Bush Intcntl to Istanbul. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 16 December 2025.

Wed 31/1215:30IAH - IST
1 stop16h 25mKLM
Thu 15/117:55IST - IAH
1 stop28h 35mKLM
Deal found 15/12£543
Mon 29/1216:05IAH - IST
1 stop26h 45mKLM
Wed 14/117:55IST - IAH
1 stop28h 35mKLM
Deal found 14/12£551
Sat 27/1214:55IAH - IST
Nonstop11h 50mTurkish Airlines
Thu 15/114:50IST - IAH
Nonstop13h 20mTurkish Airlines
Deal found 15/12£704
Fri 26/1215:30IAH - IST
1 stop16h 25mKLM
Wed 14/117:55IST - IAH
1 stop28h 35mKLM
Deal found 15/12£759
Mon 29/1216:30IAH - IST
1 stop21h 15mUnited Airlines
Wed 14/106:30IST - IAH
2 stops23h 16mUnited Airlines
Deal found 15/12£771
Mon 29/1213:32IAH - IST
2 stops19h 23mUnited Airlines
Thu 15/106:30IST - IAH
2 stops25h 11mUnited Airlines
Deal found 15/12£775
Wed 31/1215:30IAH - IST
1 stop16h 25mKLM
Wed 7/117:55IST - IAH
1 stop28h 35mKLM
Deal found 15/12£775
Tue 30/1218:38IAH - IST
2 stops24h 12mDelta
Mon 12/117:55IST - IAH
2 stops37h 01mDelta
Deal found 15/12£784
Mon 29/1216:05IAH - IST
1 stop26h 45mDelta
Mon 12/117:55IST - IAH
2 stops37h 01mDelta
Deal found 15/12£790
Mon 29/1213:32IAH - IST
2 stops19h 23mUnited Airlines
Tue 13/106:30IST - IAH
2 stops26h 12mUnited Airlines
Deal found 15/12£801
Mon 29/1216:30IAH - IST
1 stop21h 15mUnited Airlines
Sun 18/106:30IST - IAH
2 stops21h 34mUnited Airlines
Deal found 15/12£808
Mon 29/1213:32IAH - IST
2 stops19h 23mUnited Airlines
Sat 17/106:30IST - IAH
2 stops21h 31mUnited Airlines
Deal found 15/12£812

Find flight deals from George Bush Intcntl to Istanbul

Discover tips and strategies to find the most affordable flight options for your journey from George Bush Intcntl (IAH) to Istanbul (IST). 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 16 December 2025.

Round-trip from

£541

One-way from

£458

Popular in

June

Cheapest in

September

Average price

£874

Good round-trip deal

£688 or less
KLM
  • KLM
  • 20/1-2/2
  • 2 total stops
  • 34h 30m total
  • Houston to Istanbul
Search Deals
KLM
  • KLM
  • 26/12
  • 1 total stop
  • 16h 25m total
  • Houston to Istanbul
Search Deals
Highest demand for flights based on searches. 19% potential increase in price (£149 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£25 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from Houston George Bush Intcntl to Istanbul.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from George Bush Intcntl to Istanbul 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 16 December 2025.
Use the filters below to find and compare flights from Houston George Bush Intcntl Airport to Istanbul Airport that are best for you.

Fly from

George Bush Intcntl

Fly to

Istanbul

Route

Depart

Return

Price

HoustonIstanbul

IAH - IST

IAHIST

Houston George Bush Intcntl

Tue 20/1

15:30-16:55

1 stop16h 25m

Istanbul

Mon 2/2

04:50-13:55

1 stop18h 05m

£541

HoustonIstanbul

IAH - IST

IAHIST

Houston George Bush Intcntl

Sun 22/2

15:30-16:55

1 stop16h 25m

Istanbul

Mon 2/3

04:50-13:55

1 stop18h 05m

£541

HoustonIstanbul

IAH - IST

IAHIST

Houston George Bush Intcntl

Sat 14/2

15:30-16:55

1 stop16h 25m

Istanbul

Mon 16/2

04:50-13:55

1 stop18h 05m

£541

HoustonIstanbul

IAH - IST

IAHIST

Houston George Bush Intcntl

Fri 6/2

15:30-16:55

1 stop16h 25m

Istanbul

Fri 13/2

04:50-13:55

1 stop18h 05m

£541

HoustonIstanbul

IAH - IST

IAHIST

Houston George Bush Intcntl

Tue 10/3

16:30-16:55

1 stop16h 25m

Istanbul

Thu 26/3

04:50-14:55

1 stop18h 05m

£542

HoustonIstanbul

IAH - IST

IAHIST

Houston George Bush Intcntl

Mon 23/3

16:30-16:55

1 stop16h 25m

Istanbul

Tue 31/3

06:00-13:15

1 stop15h 15m

£543

HoustonIstanbul

IAH - IST

IAHIST

Houston George Bush Intcntl

Tue 10/3

16:30-16:55

1 stop16h 25m

Istanbul

Mon 23/3

17:55-14:30

1 stop28h 35m

£544

HoustonIstanbul

IAH - IST

IAHIST

Houston George Bush Intcntl

Tue 20/1

16:25-16:55

2 stops15h 30m

Istanbul

Wed 4/2

04:50-13:55

1 stop18h 05m

£545

HoustonIstanbul

IAH - IST

IAHIST

Houston George Bush Intcntl

Sun 15/3

17:05-03:50

1 stop26h 45m

Istanbul

Sat 21/3

17:55-14:30

1 stop28h 35m

£551

HoustonIstanbul

IAH - IST

IAHIST

Houston George Bush Intcntl

Sat 10/1

15:30-16:55

1 stop16h 25m

Istanbul

Thu 15/1

17:55-17:40

2 stops32h 45m

£551

Flights are sorted by cheapest return flights first.

Deals found on 16/12

Showing 1-10 of 21 results
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Best time to book a flight from George Bush Intcntl to Istanbul

Have a flexible travel schedule? Discover the best time to fly to Istanbul from George Bush Intcntl 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 Houston George Bush Intcntl Airport to Istanbul Airport

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

Use this chart to determine the optimal time to book a return flight from George Bush Intcntl to Istanbul. Price data was last updated on 12 December 2025.

To ensure you get the cheapest price possible for a flight from Houston George Bush Intcntl Airport to Istanbul Airport, you should look to book at least 57 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 Houston George Bush Intcntl Airport to Istanbul Airport?

Currently, December is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Istanbul Airport (average of £449). Flying from Houston George Bush Intcntl Airport to Istanbul Airport in June is currently the most expensive (average of £799). 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 IST?

Find hourly flight availability from George Bush Intcntl to Istanbul. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 16 December 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Houston George Bush Intcntl Airport to Istanbul Airport as you normally would.

Related info for your journey

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

    KLM can get you from Houston George Bush Intcntl Airport to Istanbul Airport in just under 16h 25m. Your travel time can differ by up to . The distance from Houston George Bush Intcntl Airport to Istanbul Airport is about 6353 mi.

  • What are the most reliable airlines from Houston George Bush Intcntl Airport to Istanbul Airport?

    Before booking your flight to Istanbul Airport from Houston George Bush Intcntl Airport, check out the most reliable airlines to get you to your destination on time: Turkish Airlines (79%), Thai Airways (69%), IndiGo( 69%).

  • What are the cheapest flights from Houston George Bush Intcntl Airport to Istanbul Airport?

    The cheapest flight price from Houston George Bush Intcntl Airport to Istanbul Airport is £432. On average you can expect to pay £997. The most popular route, (Houston George Bush Intcntl - Istanbul), can usually be booked for £1,095.

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

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

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

    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 Istanbul.

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

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

    Currently, December is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Istanbul Airport (average of £449). Flying from Houston George Bush Intcntl Airport to Istanbul Airport in June is currently the most expensive (average of £799). 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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Why should you use Cheapflights to find cheap flight tickets from George Bush Intcntl to Istanbul?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from George Bush Intcntl to Istanbul.

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

Need flexible booking options for your flight to Istanbul from George Bush Intcntl? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Yes! Start tracking prices for George Bush Intcntl to Istanbul flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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