$377+ Cheap flights from St. Louis (STL) to Istanbul (IST)
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 1/6. Fares are subject to change and may not be available on all flights or dates of travel.
STL — IST
Sep 21 — Sep 281
Round-trip
1 adult, Economy
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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.Cheap flight deals from St. Louis to Istanbul
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Best
Last-minute
One-way
Cheapest flights from St. Louis to IstanbulExplore 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 August 22, 2026.
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 August 22, 2026.
This Expedia deal was found by Cheapflights users on 8/21. 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.
Sat 11/286:50 pm -
2 stops42h 55m
Sat 12/56:30 am -
2 stops23h 43m
Deal found 8/21![Lufthansa logo]()
$859
This oojo deal was found by Cheapflights users on 8/18. 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.
Wed 9/236:00 pm -
2 stops19h 25m
Sun 11/224:30 am -
2 stops27h 54m
Deal found 8/18![Lufthansa logo]()
$921
This KAYAK deal was found by Cheapflights users on 8/20. 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.
Mon 9/287:01 pm -
2 stops23h 04m
Fri 10/95:40 am -
1 stop15h 45m
Deal found 8/20![Lufthansa logo]()
$963
This oojo deal was found by Cheapflights users on 8/18. 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.
Mon 9/76:53 pm -
2 stops23h 12m
Mon 9/283:45 am -
2 stops17h 40m
Deal found 8/18![Lufthansa logo]()
$965
This United Airlines deal was found by Cheapflights users on 8/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/275:36 pm -
2 stops19h 59m
Fri 10/95:40 am -
1 stop15h 45m
Deal found 8/20![United Airlines logo]()
$969
This KAYAK deal was found by Cheapflights users on 8/20. 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.
Mon 9/287:01 pm -
2 stops23h 04m
Mon 10/53:45 am -
2 stops25h 36m
Deal found 8/20![Lufthansa logo]()
$972
This United Airlines deal was found by Cheapflights users on 8/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/293:30 pm -
1 stop21h 45m
Wed 10/75:40 am -
2 stops22h 36m
Deal found 8/20![United Airlines logo]()
$975
This oojo deal was found by Cheapflights users on 8/18. 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.
Sun 9/66:54 pm -
2 stops18h 41m
Mon 9/143:45 am -
2 stops17h 40m
Deal found 8/18![Lufthansa logo]()
$976
This oojo deal was found by Cheapflights users on 8/18. 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.
Sat 10/31:25 pm -
2 stops23h 50m
Sat 10/317:05 pm -
2 stops30h 47m
Deal found 8/18![Lufthansa logo]()
$978
This United Airlines deal was found by Cheapflights users on 8/20. 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 United Airlines is selected, and click “Compare selected ” under the list of providers to see comparable flight deals.
Sun 9/273:11 pm -
2 stops22h 24m
Wed 10/75:40 am -
2 stops24h 50m
Deal found 8/20![United Airlines logo]()
$980
Best flights from St. Louis to IstanbulDiscover carefully curated flight deals from St. Louis to Istanbul that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 22, 2026.
Discover carefully curated flight deals from St. Louis to Istanbul that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 22, 2026.
This United Airlines deal was found by Cheapflights users on 8/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/26:30 am -
3 stops31h 15m
Fri 2/56:30 am -
1 stop16h 15m
Deal found 8/20![United Airlines logo]()
$825
This United deal was found by Cheapflights users on 8/21. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/143:30 pm -
1 stop13h 30m
Mon 9/285:55 pm -
1 stop27h 30m
Deal found 8/21![Multiple Airlines logo]()
$1,042
This British Airways deal was found by Cheapflights users on 8/19. 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.
Mon 9/1411:01 am -
2 stops19h 59m
Mon 9/288:15 pm -
2 stops28h 33m
Deal found 8/19![British Airways logo]()
$1,055
This United Airlines deal was found by Cheapflights users on 8/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/46:15 am -
2 stops31h 20m
Sun 10/115:50 am -
2 stops24h 40m
Deal found 8/20![United Airlines logo]()
$1,040
This United Airlines deal was found by Cheapflights users on 8/18. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/66:54 pm -
2 stops18h 41m
Thu 10/151:55 pm -
1 stop31h 30m
Deal found 8/18![United Airlines logo]()
$1,041
This United Airlines deal was found by Cheapflights users on 8/22. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2012:10 pm -
2 stops25h 25m
Sun 9/271:55 pm -
2 stops40h 35m
Deal found 8/22![United Airlines logo]()
$1,060
This United Airlines deal was found by Cheapflights users on 8/22. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/216:53 pm -
2 stops18h 32m
Sun 9/271:55 pm -
2 stops40h 35m
Deal found 8/22![United Airlines logo]()
$1,061
Last-minute flights from St. Louis to IstanbulDiscover last-minute flight deals from St. Louis to Istanbul. Data last updated August 22, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Istanbul. Data last updated August 22, 2026 and is based on user searches.
This oojo deal was found by Cheapflights users on 8/18. 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.
Sun 9/66:54 pm -
2 stops18h 41m
Mon 9/143:45 am -
2 stops17h 40m
Deal found 8/18![Lufthansa logo]()
$976
This oojo deal was found by Cheapflights users on 8/18. 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.
Mon 9/76:53 pm -
2 stops23h 12m
Mon 9/283:45 am -
2 stops17h 40m
Deal found 8/18![Lufthansa logo]()
$965
This oojo deal was found by Cheapflights users on 8/18. 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.
Wed 9/236:00 pm -
2 stops19h 25m
Sun 11/224:30 am -
2 stops27h 54m
Deal found 8/18![Lufthansa logo]()
$921
This KAYAK deal was found by Cheapflights users on 8/20. 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.
Sat 9/267:01 pm -
2 stops42h 34m
Fri 10/95:40 am -
1 stop15h 45m
Deal found 8/20![Lufthansa logo]()
$986
This United Airlines deal was found by Cheapflights users on 8/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/275:36 pm -
2 stops19h 59m
Fri 10/95:40 am -
1 stop15h 45m
Deal found 8/20![United Airlines logo]()
$969
This United Airlines deal was found by Cheapflights users on 8/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/278:00 am -
2 stops21h 00m
Tue 10/65:40 am -
3 stops23h 41m
Deal found 8/20![United Airlines logo]()
$980
This KAYAK deal was found by Cheapflights users on 8/20. 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.
Mon 9/287:01 pm -
2 stops23h 04m
Fri 10/95:40 am -
1 stop15h 45m
Deal found 8/20![Lufthansa logo]()
$963
This KAYAK deal was found by Cheapflights users on 8/20. 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.
Mon 9/287:01 pm -
2 stops23h 04m
Mon 10/53:45 am -
2 stops25h 36m
Deal found 8/20![Lufthansa logo]()
$972
This KAYAK deal was found by Cheapflights users on 8/20. 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.
Mon 9/287:01 pm -
2 stops23h 04m
Mon 10/51:55 pm -
1 stop31h 30m
Deal found 8/20![Lufthansa logo]()
$983
This United Airlines deal was found by Cheapflights users on 8/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/283:30 pm -
1 stop13h 30m
Thu 10/81:55 pm -
1 stop31h 30m
Deal found 8/20![United Airlines logo]()
$985
This United Airlines deal was found by Cheapflights users on 8/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/293:30 pm -
1 stop21h 45m
Wed 10/75:40 am -
2 stops22h 36m
Deal found 8/20![United Airlines logo]()
$975
This United Airlines deal was found by Cheapflights users on 8/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/293:30 pm -
1 stop21h 45m
Tue 10/65:40 am -
1 stop15h 45m
Deal found 8/20![United Airlines logo]()
$984
One-way flights from St. Louis to IstanbulSearch for one-way flight options from St. Louis to Istanbul. Find affordable one-way fares based on user searches. Data last updated August 22, 2026.
Search for one-way flight options from St. Louis to Istanbul. Find affordable one-way fares based on user searches. Data last updated August 22, 2026.
This FlightHub deal was found by Cheapflights users on 8/19. 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.
Wed 1/67:04 pm -
2 stops22h 46m
Deal found 8/19![Lufthansa logo]()
$377
This oojo deal was found by Cheapflights users on 8/18. 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.
Fri 11/276:50 pm -
2 stops23h 00m
Deal found 8/18![Lufthansa logo]()
$388
This Kiwi.com deal was found by Cheapflights users on 8/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/282:29 pm -
3 stops45h 01m
Deal found 8/18![Multiple Airlines logo]()
$392
This Kiwi.com deal was found by Cheapflights users on 8/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2212:17 pm -
3 stops47h 13m
Deal found 8/19![Multiple Airlines logo]()
$405
This Kiwi.com deal was found by Cheapflights users on 8/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/252:29 pm -
3 stops49h 36m
Deal found 8/19![Multiple Airlines logo]()
$420
This Kiwi.com deal was found by Cheapflights users on 8/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2912:17 pm -
3 stops47h 13m
Deal found 8/18![Multiple Airlines logo]()
$437
This oojo deal was found by Cheapflights users on 8/18. 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.
Mon 9/2112:59 pm -
2 stops16h 01m
Deal found 8/18![Lufthansa logo]()
$440
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 (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 August 22, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $825 (United Airlines) |
One-way from | $377 (FlightHub) |
Popular in | June |
Cheapest in | December |
Average price | $1,164 |
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 7,457,451 searches. Data last updated August 22, 2026.
Use the filters below to find and compare flights from St. Louis to Istanbul Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
St. LouisIstanbul
STL Lambert-St Louis - IST Istanbul
STLIST
Lambert-St Louis
Tue 2/2
6:30 am-10:45 pm
3 stops31h 15m
Istanbul
Fri 2/5
6:30 am-1:45 pm
1 stop16h 15m
$825
St. LouisIstanbul
STL Lambert-St Louis - IST Istanbul
STLIST
Lambert-St Louis
Sun 10/4
6:15 am-9:35 pm
2 stops31h 20m
Istanbul
Sun 10/11
5:50 am-10:30 pm
2 stops24h 40m
$1,040
St. LouisIstanbul
STL Lambert-St Louis - IST Istanbul
STLIST
Lambert-St Louis
Sun 9/6
6:54 pm-9:35 pm
2 stops18h 41m
Istanbul
Thu 10/15
1:55 pm-1:25 pm
1 stop31h 30m
$1,041
Quickest round-trip
St. LouisIstanbul
STL Lambert-St Louis - IST Istanbul
STLIST
Lambert-St Louis
Mon 9/14
3:30 pm-1:00 pm
1 stop13h 30m
Istanbul
Mon 9/28
5:55 pm-1:25 pm
1 stop27h 30m
$1,042
St. LouisIstanbul
STL Lambert-St Louis - IST Istanbul
STLIST
Lambert-St Louis
Mon 9/14
11:01 am-3:00 pm
2 stops19h 59m
Istanbul
Mon 9/28
8:15 pm-4:48 pm
2 stops28h 33m
$1,055
St. LouisIstanbul
STL Lambert-St Louis - IST Istanbul
STLIST
Lambert-St Louis
Sun 9/20
12:10 pm-9:35 pm
2 stops25h 25m
Istanbul
Sun 9/27
1:55 pm-10:30 pm
2 stops40h 35m
$1,060
St. LouisIstanbul
STL Lambert-St Louis - IST Istanbul
STLIST
Lambert-St Louis
Mon 9/21
6:53 pm-9:25 pm
2 stops18h 32m
Istanbul
Sun 9/27
1:55 pm-10:30 pm
2 stops40h 35m
$1,061
Cheapest one-way
St. LouisIstanbul
STL Lambert-St Louis - IST Istanbul
STLIST
Lambert-St Louis
Tue 9/22
12:17 pm-7:30 pm
3 stops47h 13m
$406
St. LouisIstanbul
STL Lambert-St Louis - IST Istanbul
STLIST
Lambert-St Louis
Wed 1/6
3:40 pm-6:10 pm
1 stop17h 30m
$408
St. LouisIstanbul
STL Lambert-St Louis - IST Istanbul
STLIST
Lambert-St Louis
Fri 9/25
2:29 pm-12:05 am
3 stops49h 36m
$420
Showing 1-10 of 16 resultsSorted by cheapest first
Compare providers for flights from St. Louis to Istanbul
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Istanbul in August.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on St. Louis-Istanbul Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Istanbul Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Istanbul Airport flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on St. Louis-Istanbul Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Istanbul Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
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.
STL-IST
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 Airport
Prices
More
How far ahead should I book a flight from St. Louis to Istanbul Airport?
The best time to book flights from St. Louis to Istanbul Airport is 28 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 St. Louis to Istanbul Airport?
Currently, December is the cheapest month in which you can book a flight from St. Louis to Istanbul Airport (average of $597). Flying from St. Louis to Istanbul Airport in June is currently the most expensive (average of $1,357). 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.
How much does it cost to fly round-trip from St. Louis to Istanbul Airport?
Airfare is typical for this route at the moment.
St. Louis to Istanbul Airport flights typically cost between $748 and $1,178 in February.The cheapest round-trip price found within the last 5 days was $825 on United Airlines (Feb 2-Feb 5).
What’s the top layover airport for flights from St. Louis to Istanbul Airport?
Share of 1-stop round-trip flights from St. Louis to Istanbul Airport chosen by Cheapflights users in the past 12 months, using the same layover each way.
Frankfurt am Main (FRA) – chosen by Cheapflights users on 78% of 1-stop itineraries from St. Louis to Istanbul Airport on Cheapflights.
What’s the cheapest layover airport for flights from St. Louis to Istanbul Airport?
Average round-trip fare for 1-stop flights from St. Louis to Istanbul Airport, chosen by Cheapflights users in the past 12 months, with the same layover each way.
Frankfurt am Main (FRA) is the most affordable 1-stop option, with an average round-trip price of $708.
What’s the fastest layover option from St. Louis to Istanbul Airport?
Shortest average travel time for 1-stop one-way flights from St. Louis to Istanbul Airport, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Frankfurt am Main (FRA) have the shortest average one-way travel time for 1-stop routes: 13h 29m.
Which airport typically offers the quickest layover for flights from St. Louis to Istanbul Airport?
Average layover duration for 1-stop one-way flights from St. Louis to Istanbul Airport, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Chicago (ORD) offer the fastest connection on this route, with an average layover time of 2h 05m.
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 August 22, 2026.
Get a feel of what it's like to fly with KLM,Delta, andTurkish Airlines from St. Louis to Istanbul Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.4
Entertainment
7.2
Food
7.3
Overall
7.8
Boarding
7.8
Comfort
7.7
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Crew
8.4
Entertainment
7.2
Food
7.3
Overall
7.8
Boarding
7.8
Comfort
7.7
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Crew
8.4
Entertainment
7.2
Food
7.3
Overall
7.8
Boarding
7.8
Comfort
7.7
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Crew
8.4
Entertainment
7.2
Food
7.3
Overall
7.8
Boarding
7.8
Comfort
7.7
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Crew
8.4
Entertainment
7.2
Food
7.3
Overall
7.8
Boarding
7.8
Comfort
7.7
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Crew
8.4
Entertainment
7.2
Food
7.3
Overall
7.8
Boarding
7.8
Comfort
7.7
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
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Top 6 airlines flying from St. Louis to Istanbul
Discover the top 6 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 7,457,451 searches. Data last updated August 22, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$576 | Average$1,094 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$585 | Average$1,003 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$589 | Average$944 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$608 | Average$1,069 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$633 | Average$1,074 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$866 | Average$1,321 | FlexibilityNo cancel fee | On-time77% |