HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Istanbul

$482+ Cheap flights from St. Louis (STL) to Istanbul

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 3/29. Fares are subject to change and may not be available on all flights or dates of travel.
STL — IST
ene. 3 — ene. 101
sáb. 1/3
sáb. 1/10
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from St. Louis to Istanbul with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Lambert-St Louis to Istanbul are usually found in December or March, booked 35 days in advance, depart on a Wednesday or Tuesday and return on a Monday

Cheap flight deals from St. Louis to Istanbul

Cheapest flights from St. Louis to Istanbul
Explore the most affordable flight options available from St. Louis to Istanbul. Find the lowest fares from popular airlines and budget airlines, with prices last updated on diciembre 4, 2025.

This CheapOair deal was found by Cheapflights users on 12/2. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/236:35 pmSTL - IST
2 stops58h 20mBritish Airways
mar. 1/202:55 pmIST - STL
2 stops36h 19mBritish Airways
Deal found 12/2$618
This Booking.com deal was found by Cheapflights users on 12/2. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/236:35 pmSTL - IST
2 stops58h 20mBritish Airways
dom. 1/119:20 pmIST - STL
2 stops34h 24mBritish Airways
Deal found 12/2$704
This Ovago deal was found by Cheapflights users on 12/4. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/53:50 pmSTL - IST
1 stop17h 15mLufthansa
vie. 12/126:30 amIST - STL
1 stop16h 25mLufthansa
Deal found 12/4$1,007
This Gurufare deal was found by Cheapflights users on 12/4. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/61:00 pmSTL - IST
2 stops24h 45mLufthansa
mié. 12/106:30 amIST - STL
1 stop16h 25mLufthansa
Deal found 12/4$1,009
This FlightHub deal was found by Cheapflights users on 12/4. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/46:42 pmSTL - IST
2 stops19h 03mLufthansa
mié. 12/246:30 amIST - STL
1 stop16h 25mLufthansa
Deal found 12/4$1,025
This Delta deal was found by Cheapflights users on 12/4. 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.
jue. 12/47:02 pmSTL - IST
2 stops36h 53mDelta
mar. 12/235:55 pmIST - STL
2 stops31h 33mDelta
Deal found 12/4$1,059
This Orbitz deal was found by Cheapflights users on 12/2. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/64:05 pmSTL - IST
2 stops18h 30mMultiple Airlines
lun. 12/89:20 pmIST - STL
2 stops51h 09mMultiple Airlines
Deal found 12/2$1,167
This Expedia deal was found by Cheapflights users on 12/4. 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.
vie. 12/53:23 pmSTL - SAW
2 stops59h 47mMultiple Airlines
vie. 12/121:40 pmSAW - STL
2 stops43h 17mMultiple Airlines
Deal found 12/4$1,486
This Qatar Airways deal was found by Cheapflights users on 12/4. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/67:00 amSTL - SAW
2 stops44h 10mQatar Airways
mié. 12/101:40 pmSAW - STL
2 stops43h 19mQatar Airways
Deal found 12/4$1,668
This Mytrip deal was found by Cheapflights users on 12/1. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/53:50 pmSTL - SAW
2 stops20h 35mMultiple Airlines
dom. 12/79:35 pmSAW - STL
3 stops35h 03mMultiple Airlines
Deal found 12/1$1,760
This Mytrip deal was found by Cheapflights users on 12/2. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/64:05 pmSTL - SAW
3 stops21h 10mMultiple Airlines
lun. 12/811:40 pmSAW - STL
3 stops31h 00mMultiple Airlines
Deal found 12/2$1,828
This Iberia deal was found by Cheapflights users on 12/4. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/411:50 amSTL - SAW
2 stops24h 15mIberia
jue. 12/259:15 amSAW - STL
2 stops33h 16mIberia
Deal found 12/4$1,873

Find flight deals from St. Louis to Istanbul

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Istanbul (TR5). 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 diciembre 4, 2025.

Round-trip from

$528
(oojo)

One-way from

$482
(Kiwi.com)

Popular in

June

Cheapest in

December

Average price

$617
From Lambert-St Louis to Istanbul
Search Deals
One-way flight from Lambert-St Louis to Istanbul
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($232 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($26 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis 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 2,558,603 searches. Data last updated diciembre 4, 2025.
Use the filters below to find and compare flights from St. Louis to Istanbul that are best for you.

Fly from

St. Louis

Fly to

Istanbul

Route

Depart

Return

Price

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

lun. 1/12

9:45 am-3:50 am

2 stops33h 05m

Istanbul

lun. 2/2

4:50 am-9:34 am

2 stops37h 44m

$548

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

lun. 1/12

1:18 pm-3:50 am

2 stops29h 32m

Istanbul

mar. 2/3

4:50 am-8:37 pm

2 stops24h 47m

$549

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

lun. 1/12

1:18 pm-3:50 am

2 stops29h 32m

Istanbul

mié. 1/28

4:50 am-4:37 pm

2 stops20h 47m

$549

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

lun. 1/12

1:18 pm-3:50 am

2 stops29h 32m

Istanbul

jue. 1/29

4:50 am-8:43 pm

2 stops24h 53m

$549

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

mié. 1/14

7:10 am-3:50 am

2 stops35h 40m

Istanbul

mar. 2/3

4:50 am-4:42 pm

2 stops20h 52m

$557

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

mié. 1/14

9:59 am-3:50 am

2 stops32h 51m

Istanbul

jue. 1/29

4:50 am-5:50 pm

2 stops22h 00m

$557

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

mié. 1/14

7:10 am-3:50 am

2 stops35h 40m

Istanbul

mié. 1/28

4:50 am-11:37 pm

2 stops27h 47m

$557

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

vie. 1/16

3:50 pm-6:05 pm

1 stop17h 15m

Istanbul

vie. 1/30

6:30 am-1:55 pm

1 stop16h 25m

$559

St. LouisIstanbul

STL - SAW

STLSAW

Lambert-St Louis

mar. 1/13

12:00 pm-5:25 pm

2 stops20h 25m

Istanbul Sabiha Gokcen

dom. 2/1

9:00 am-8:37 pm

2 stops20h 37m

$596

St. LouisIstanbul

STL - SAW

STLSAW

Lambert-St Louis

mar. 1/13

12:00 pm-5:25 pm

2 stops20h 25m

Istanbul Sabiha Gokcen

lun. 2/2

9:00 am-11:37 pm

2 stops23h 37m

$596

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/4

Showing 1-10 of 24 results
1
2
3

Best time to book a flight from St. Louis to Istanbul

Have a flexible travel schedule? Discover the best time to fly to Istanbul from St. Louis 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 St. Louis to Istanbul

How far ahead should I book a flight from St. Louis to Istanbul?

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Istanbul. Price data was last updated on November 28, 2025.

The price you pay for your flight from St. Louis to Istanbul may vary depending on when you book. For the best chance of a lower fare, look to book 35 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from St. Louis to Istanbul?

Currently, December is the cheapest month in which you can book a flight from St. Louis to Istanbul (average of $484). Flying from St. Louis to Istanbul in June is currently the most expensive (average of $1,162). 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 STL to IST?

Find hourly flight availability from St. Louis 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 diciembre 4, 2025.

It’s typically best to fly out from St. Louis to Istanbul at noon. Doing so could potentially save you 14% on the flight price compared to flying in the morning, which is usually more expensive.

How much does it cost to fly round-trip from St. Louis to Istanbul?

Reviews of airlines servicing Istanbul

Get insights into the airlines that provide service to Istanbul. 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 Istanbul. Reviews last updated diciembre 4, 2025.
See what other customers who have flown with Delta, Turkish Airlines, and Air Canada from St. Louis to Istanbul have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,011 reviews

Crew

8.5

Boarding

8.1

Food

7.3

Comfort

7.9

Overall

7.9

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,011 reviews
Delta
7.9
Good
8,011 reviews

Crew

8.5

Boarding

8.1

Food

7.3

Comfort

7.9

Overall

7.9

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Turkish Airlines
7.3
Good
4,076 reviews
Delta
7.9
Good
8,011 reviews

Crew

8.5

Boarding

8.1

Food

7.3

Comfort

7.9

Overall

7.9

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Air Canada
7.1
Good
10,500 reviews
Delta
7.9
Good
8,011 reviews

Crew

8.5

Boarding

8.1

Food

7.3

Comfort

7.9

Overall

7.9

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Lufthansa
6.8
Okay
7,612 reviews
Delta
7.9
Good
8,011 reviews

Crew

8.5

Boarding

8.1

Food

7.3

Comfort

7.9

Overall

7.9

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
British Airways
6.7
Okay
7,559 reviews
Delta
7.9
Good
8,011 reviews

Crew

8.5

Boarding

8.1

Food

7.3

Comfort

7.9

Overall

7.9

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Istanbul. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from St. Louis to Istanbul?

    Lambert-St Louis (STL) is the airport you will fly out of if you book a flight from St. Louis to Istanbul. You should not have trouble finding flights to Istanbul from Lambert-St Louis; the airport handles an average of 0 outbound flights to Istanbul per day. You should also have plenty of airline options to choose from since 7 airlines have flights from the St. Louis airport to Istanbul. It is only a 12.7 mi journey to Lambert-St Louis (STL) from St. Louis’s city center.

  • How long is the flight from St. Louis to Istanbul?

    There are many flights that can get you from St. Louis to Istanbul in 20h 25m. Fly via Delta or KLM to get the fastest option. The distance from St. Louis to Istanbul is about 5746 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from St. Louis to Istanbul round-trip?

    Cheapflights users have booked flights from St. Louis to Istanbul round-trip from $576. Other airlines that can offer you cheap pricing are KLM, from $617, and Air Canada, from $627. British Airways is priced at 44% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from St. Louis to Istanbul one-way?

    $367 is the cheapest one-way deal found within the past few days, from Lufthansa. You may also be able to find cheap deals on United Airlines and Turkish Airlines, with prices starting from $458 and $660, respectively.

  • Can I find deals for flights from St. Louis to Istanbul that include hotel bookings?

    Yes. In addition to deals on St. Louis to Istanbul flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to Istanbul?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Istanbul.

  • Can I find deals for business class flights from St. Louis to Istanbul?

    Yes. Cheapflights offers flight deals from St. Louis 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 St. Louis to Istanbul?

    Currently, December is the cheapest month in which you can book a flight from St. Louis to Istanbul (average of $484). Flying from St. Louis to Istanbul in June is currently the most expensive (average of $1,162). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 7 airlines flying from St. Louis to Istanbul

Discover the top 7 airlines that operate flights from St. Louis to Istanbul. 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 diciembre 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$576Average$755FlexibilityNo cancel feeOn-time70%
KLMCheapest$617Average$909FlexibilityNo cancel feeOn-time75%
Air CanadaCheapest$627Average$948FlexibilityNo cancel feeOn-time67%
DeltaCheapest$680Average$1,099FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$708Average$1,227FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$718Average$1,090FlexibilityNo cancel feeOn-time76%
Turkish AirlinesCheapest$1,200Average$1,373FlexibilityNo cancel feeOn-time77%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.