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Cheap flights from Houston George Bush Intcntl Airport to Istanbul Airport from £449

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 6/9. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — IST
1 May — 8 May1
1 adult
1 adult, Economy, 0 bags

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 1 April 2026.

Tue 11/815:25
IAH
-
IST
2 stops28h 05m
Delta
Fri 21/804:25
IST
-
IAH
1 stop17h 15m
Delta
Deal found 28/3£634
Sun 25/1017:05
IAH
-
IST
1 stop26h 45m
Delta
Tue 3/1104:50
IST
-
IAH
1 stop18h 05m
Delta
Deal found 1/4£640
Mon 26/1013:15
IAH
-
IST
2 stops30h 35m
Delta
Mon 2/1117:55
IST
-
IAH
2 stops33h 33m
Delta
Deal found 1/4£641
Wed 5/815:55
IAH
-
IST
1 stop27h 35m
Delta
Fri 21/806:00
IST
-
IAH
2 stops23h 59m
Delta
Deal found 1/4£647
Mon 10/815:25
IAH
-
IST
2 stops28h 05m
Delta
Sun 23/817:20
IST
-
IAH
1 stop27h 55m
Delta
Deal found 31/3£672
Tue 1/915:55
IAH
-
IST
1 stop27h 35m
Delta
Mon 21/917:20
IST
-
IAH
1 stop27h 55m
Delta
Deal found 31/3£678
Mon 14/915:40
IAH
-
IST
2 stops27h 50m
Delta
Wed 30/906:00
IST
-
IAH
1 stop15h 15m
Delta
Deal found 1/4£681
Wed 2/915:55
IAH
-
IST
1 stop27h 35m
Delta
Wed 16/917:20
IST
-
IAH
2 stops31h 08m
Delta
Deal found 1/4£685
Tue 1/915:55
IAH
-
IST
1 stop27h 35m
Delta
Tue 22/906:00
IST
-
IAH
2 stops25h 51m
Delta
Deal found 31/3£685

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 1 April 2026.

Round-trip from

£634

One-way from

£449

Popular in

June

Cheapest in

March

Average price

£726

Good round-trip deal

£571 or less
Delta
  • Delta
  • 11/8-21/8
  • 3 total stops
  • 45h 20m total
  • Houston to Istanbul
Search Deals
Delta
  • Delta
  • 6/9
  • 1 total stop
  • 17h 00m total
  • Houston to Istanbul
Search Deals
Highest demand for flights based on searches. 24% potential increase in price (£192 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (£30 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2026
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 1 April 2026.
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

Fly to

Route

Depart

Return

Price

Cheapest return flight

HoustonIstanbul

IAH - IST

IAHIST

Houston George Bush Intcntl

Sun 30/8

15:40-03:30

2 stops27h 50m

Istanbul

Wed 11/11

17:55-13:30

1 stop28h 35m

£672

HoustonIstanbul

IAH - IST

IAHIST

Houston George Bush Intcntl

Tue 8/9

15:55-03:30

1 stop27h 35m

Istanbul

Mon 28/9

17:20-13:15

1 stop27h 55m

£678

HoustonIstanbul

IAH - IST

IAHIST

Houston George Bush Intcntl

Sun 30/8

15:40-03:30

2 stops27h 50m

Istanbul

Mon 14/9

17:20-13:15

1 stop27h 55m

£710

HoustonIstanbul

IAH - IST

IAHIST

Houston George Bush Intcntl

Sun 10/5

15:25-01:20

1 stop25h 55m

Istanbul

Sat 23/5

04:25-13:35

1 stop17h 10m

£797
Fastest return journey

HoustonIstanbul

IAH - IST

IAHIST

Houston George Bush Intcntl

Mon 7/9

15:20-16:20

1 stop17h 00m

Istanbul

Sat 12/9

04:25-13:40

1 stop17h 15m

£797

HoustonIstanbul

IAH - IST

IAHIST

Houston George Bush Intcntl

Sun 12/4

15:25-01:20

1 stop25h 55m

Istanbul

Sun 26/4

17:20-13:20

1 stop28h 00m

£797

HoustonIstanbul

IAH - IST

IAHIST

Houston George Bush Intcntl

Tue 30/6

17:00-03:30

1 stop26h 30m

Istanbul

Wed 30/9

06:00-18:28

2 stops20h 28m

£799

HoustonIstanbul

IAH - IST

IAHIST

Houston George Bush Intcntl

Fri 24/4

15:50-16:20

2 stops16h 30m

Istanbul

Thu 30/4

17:20-13:20

1 stop28h 00m

£800

HoustonIstanbul

IAH - IST

IAHIST

Houston George Bush Intcntl

Fri 1/5

12:38-16:20

2 stops19h 42m

Istanbul

Wed 6/5

04:25-13:35

1 stop17h 10m

£800

HoustonIstanbul

IAH - IST

IAHIST

Houston George Bush Intcntl

Mon 7/9

15:20-16:20

1 stop17h 00m

Istanbul

Sat 12/9

04:25-16:28

2 stops20h 03m

£805

Flights are sorted by cheapest return flights first.

Deals found on 30/3

Showing 1-10 of 20 resultsSorted by cheapest first
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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 13 March 2026.

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 51 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 £453). Flying from Houston George Bush Intcntl Airport to Istanbul Airport in June is currently the most expensive (average of £782). 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 1 April 2026.

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.

How much does it cost for a return flight from Houston George Bush Intcntl Airport to Istanbul Airport?

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?

    Delta and KLM can get you from Houston George Bush Intcntl Airport to Istanbul Airport in just under 16h 55m. Your travel time can differ by up to 10h 40m. The distance from Houston George Bush Intcntl Airport to Istanbul Airport is about 6353 mi. This flight may include one or multiple stops.

  • 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: Thai Airways (92%), IndiGo (92%), Pakistan International Airlines( 92%).

  • 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 £482. On average you can expect to pay £580. The most popular route, (Houston George Bush Intcntl - Istanbul), can usually be booked for £1,108.

  • 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 £453). Flying from Houston George Bush Intcntl Airport to Istanbul Airport in June is currently the most expensive (average of £782). 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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How does Cheapflights help users find flights from George Bush Intcntl to Istanbul?

Cheapflights makes it easy to find George Bush Intcntl to Istanbul flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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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