$474+ 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 5/18. Fares are subject to change and may not be available on all flights or dates of travel.
STL — IST
Mar 10 — Mar 171
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 February 8, 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 February 8, 2026.
This Booking.com deal was found by Cheapflights users on 2/7. 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.
Wed 4/223:30 pm
STL
- IST
1 stop17h 25m
Lufthansa
Wed 5/65:40 am
IST
- STL
1 stop15h 45m
Lufthansa
Deal found 2/7![Lufthansa logo]()
$551
This oojo deal was found by Cheapflights users on 2/7. 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 4/2911:45 am
STL
- IST
2 stops28h 40m
British Airways
Tue 5/57:55 pm
IST
- STL
2 stops28h 46m
British Airways
Deal found 2/7![British Airways logo]()
$561
This United Airlines deal was found by Cheapflights users on 2/7. 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.
Wed 4/226:15 am
STL
- IST
3 stops31h 10m
United Airlines
Wed 5/65:40 am
IST
- STL
1 stop15h 45m
United Airlines
Deal found 2/7![United Airlines logo]()
$567
This United Airlines deal was found by Cheapflights users on 2/7. 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 4/216:15 am
STL
- IST
3 stops31h 00m
United Airlines
Tue 5/51:55 pm
IST
- STL
2 stops30h 11m
United Airlines
Deal found 2/7![United Airlines logo]()
$575
This Booking.com deal was found by Cheapflights users on 2/7. 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.
Wed 4/293:30 pm
STL
- IST
1 stop13h 30m
Lufthansa
Tue 5/51:55 pm
IST
- STL
1 stop31h 30m
Lufthansa
Deal found 2/7![Lufthansa logo]()
$578
This Trip.com deal was found by Cheapflights users on 2/7. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/219:35 pm
STL
- IST
1 stop19h 30m
British Airways
Tue 5/57:55 pm
IST
- STL
1 stop31h 35m
British Airways
Deal found 2/7![British Airways logo]()
$590
This Expedia deal was found by Cheapflights users on 2/8. 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.
Mon 4/274:05 pm
STL
- IST
2 stops21h 20m
Multiple Airlines
Tue 5/55:50 pm
IST
- STL
1 stop27h 35m
Multiple Airlines
Deal found 2/8![Multiple Airlines logo]()
$592
This Booking.com deal was found by Cheapflights users on 2/8. 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.
Wed 3/1811:28 am
STL
- IST
2 stops27h 17m
Lufthansa
Wed 4/155:40 am
IST
- STL
1 stop15h 45m
Lufthansa
Deal found 2/8![Lufthansa logo]()
$593
This United Airlines deal was found by Cheapflights users on 2/6. 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.
Wed 3/184:05 pm
STL
- IST
2 stops22h 40m
United Airlines
Wed 4/155:40 am
IST
- STL
1 stop15h 45m
United Airlines
Deal found 2/6![United Airlines logo]()
$597
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 February 8, 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 February 8, 2026.
This United Airlines deal was found by Cheapflights users on 2/7. 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.
Wed 4/226:15 am
STL
- IST
3 stops31h 10m
United Airlines
Wed 5/65:40 am
IST
- STL
1 stop15h 45m
United Airlines
Deal found 2/7![United Airlines logo]()
$567
This Booking.com deal was found by Cheapflights users on 2/7. 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.
Wed 4/293:30 pm
STL
- IST
1 stop13h 30m
Lufthansa
Tue 5/51:55 pm
IST
- STL
1 stop31h 30m
Lufthansa
Deal found 2/7![Lufthansa logo]()
$578
This Delta deal was found by Cheapflights users on 2/5. 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 3/235:59 pm
STL
- IST
2 stops25h 51m
Delta
Mon 3/305:20 pm
IST
- STL
2 stops31h 45m
Delta
Deal found 2/5![Delta logo]()
$616
This United Airlines deal was found by Cheapflights users on 2/8. 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 4/2710:00 am
STL
- IST
2 stops19h 00m
United Airlines
Tue 5/51:55 pm
IST
- STL
2 stops30h 11m
United Airlines
Deal found 2/8![United Airlines logo]()
$576
This Booking.com deal was found by Cheapflights users on 2/8. 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.
Wed 3/1811:28 am
STL
- IST
2 stops27h 17m
Lufthansa
Wed 4/155:40 am
IST
- STL
1 stop15h 45m
Lufthansa
Deal found 2/8![Lufthansa logo]()
$593
This Delta deal was found by Cheapflights users on 2/5. 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 3/231:39 pm
STL
- IST
2 stops30h 11m
Delta
Tue 4/76:00 am
IST
- STL
2 stops22h 42m
Delta
Deal found 2/5![Delta logo]()
$627
This United Airlines deal was found by Cheapflights users on 2/8. 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.
Wed 3/185:15 am
STL
- IST
2 stops33h 30m
United Airlines
Wed 4/155:40 am
IST
- STL
2 stops17h 44m
United Airlines
Deal found 2/8![United Airlines logo]()
$601
This Delta deal was found by Cheapflights users on 2/5. 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 3/2310:12 am
STL
- IST
2 stops33h 38m
Delta
Wed 4/86:00 am
IST
- STL
2 stops22h 42m
Delta
Deal found 2/5![Delta logo]()
$627
This United Airlines deal was found by Cheapflights users on 2/5. 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 3/235:41 pm
STL
- IST
2 stops21h 04m
United Airlines
Thu 4/95:40 am
IST
- STL
2 stops24h 48m
United Airlines
Deal found 2/5![United Airlines logo]()
$603
This United Airlines deal was found by Cheapflights users on 2/5. 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.
Sat 3/214:05 pm
STL
- IST
2 stops22h 40m
United Airlines
Thu 4/95:40 am
IST
- STL
2 stops24h 48m
United Airlines
Deal found 2/5![United Airlines logo]()
$607
Last-minute flights from St. Louis to IstanbulDiscover last-minute flight deals from St. Louis to Istanbul. Data last updated February 8, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Istanbul. Data last updated February 8, 2026 and is based on user searches.
This Booking.com deal was found by Cheapflights users on 2/8. 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.
Wed 3/1811:28 am
STL
- IST
2 stops27h 17m
Lufthansa
Wed 4/155:40 am
IST
- STL
1 stop15h 45m
Lufthansa
Deal found 2/8![Lufthansa logo]()
$593
This United Airlines deal was found by Cheapflights users on 2/7. 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.
Wed 3/184:05 pm
STL
- IST
2 stops22h 40m
United Airlines
Wed 4/155:40 am
IST
- STL
1 stop15h 45m
United Airlines
Deal found 2/7![United Airlines logo]()
$597
This United Airlines deal was found by Cheapflights users on 2/5. 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.
Wed 3/184:05 pm
STL
- IST
2 stops22h 40m
United Airlines
Thu 4/95:40 am
IST
- STL
2 stops24h 48m
United Airlines
Deal found 2/5![United Airlines logo]()
$607
This Expedia deal was found by Cheapflights users on 2/5. 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.
Wed 3/1811:28 am
STL
- IST
2 stops27h 17m
Multiple Airlines
Wed 4/83:00 pm
IST
- STL
2 stops32h 24m
Multiple Airlines
Deal found 2/5![Multiple Airlines logo]()
$678
This Travelocity deal was found by Cheapflights users on 2/5. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/217:00 pm
STL
- IST
2 stops43h 45m
Multiple Airlines
Wed 4/87:00 pm
IST
- STL
2 stops28h 24m
Multiple Airlines
Deal found 2/5![Multiple Airlines logo]()
$689
This Delta deal was found by Cheapflights users on 2/5. 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 3/235:59 pm
STL
- IST
2 stops25h 51m
Delta
Mon 3/305:20 pm
IST
- STL
2 stops31h 45m
Delta
Deal found 2/5![Delta logo]()
$616
This Delta deal was found by Cheapflights users on 2/5. 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 3/2310:12 am
STL
- IST
2 stops33h 38m
Delta
Wed 4/86:00 am
IST
- STL
2 stops22h 42m
Delta
Deal found 2/5![Delta logo]()
$627
This Lufthansa deal was found by Cheapflights users on 2/7. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/241:14 pm
STL
- IST
2 stops25h 31m
Lufthansa
Tue 3/315:40 am
IST
- STL
2 stops23h 28m
Lufthansa
Deal found 2/7![Lufthansa logo]()
$603
This Flightnetwork deal was found by Cheapflights users on 2/7. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/244:05 pm
STL
- IST
2 stops22h 40m
Multiple Airlines
Tue 3/315:50 pm
IST
- STL
1 stop27h 35m
Multiple Airlines
Deal found 2/7![Multiple Airlines logo]()
$611
This KAYAK deal was found by Cheapflights users on 2/6. 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 3/256:00 am
STL
- IST
2 stops28h 05m
Lufthansa
Wed 4/15:40 am
IST
- STL
1 stop15h 45m
Lufthansa
Deal found 2/6![Lufthansa logo]()
$605
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 February 8, 2026.
Search for one-way flight options from St. Louis to Istanbul. Find affordable one-way fares based on user searches. Data last updated February 8, 2026.
This Mytrip deal was found by Cheapflights users on 2/4. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/187:30 am
STL
- IST
3 stops31h 55m
Multiple Airlines
Deal found 2/4![Multiple Airlines logo]()
$474
This United Airlines deal was found by Cheapflights users on 2/4. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/182:20 pm
STL
- IST
2 stops46h 55m
United Airlines
Deal found 2/4![United Airlines logo]()
$648
This Trip.com deal was found by Cheapflights users on 2/5. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/296:55 pm
STL
- IST
2 stops23h 10m
Lufthansa
Deal found 2/5![Lufthansa logo]()
$790
This Trip.com deal was found by Cheapflights users on 2/5. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/299:35 pm
STL
- IST
1 stop18h 45m
British Airways
Deal found 2/5![British Airways logo]()
$1,002
This Kiwi.com deal was found by Cheapflights users on 2/5. 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 5/87:00 am
STL
- IST
3 stops46h 05m
Multiple Airlines
Deal found 2/5![Multiple Airlines logo]()
$2,143
This Cheapflightsfares deal was found by Cheapflights users on 2/8. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/83:30 pm
STL
- IST
1 stop13h 30m
Lufthansa
Deal found 2/8![Lufthansa logo]()
$3,145
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 February 8, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $551 (Booking.com) |
One-way from | $474 (Mytrip) |
Popular in | June |
Cheapest in | December |
Average price | $829 |
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 February 8, 2026.
Use the filters below to find and compare flights from St. Louis to Istanbul Airport that are best for you.
Fly from
St. Louis
Fly to
Istanbul
Route
Depart
Return
Price
St. LouisIstanbul
STL - IST
STLIST
Lambert-St Louis
Wed 4/22
6:15 am-9:25 pm
3 stops31h 10m
Istanbul
Wed 5/6
5:40 am-1:25 pm
1 stop15h 45m
$567
St. LouisIstanbul
STL - IST
STLIST
Lambert-St Louis
Mon 4/27
10:00 am-1:00 pm
2 stops19h 00m
Istanbul
Tue 5/5
1:55 pm-12:06 pm
2 stops30h 11m
$576
St. LouisIstanbul
STL - IST
STLIST
Lambert-St Louis
Wed 4/29
3:30 pm-1:00 pm
1 stop13h 30m
Istanbul
Tue 5/5
1:55 pm-1:25 pm
1 stop31h 30m
$578
St. LouisIstanbul
STL - IST
STLIST
Lambert-St Louis
Wed 3/18
11:28 am-10:45 pm
2 stops27h 17m
Istanbul
Wed 4/15
5:40 am-1:25 pm
1 stop15h 45m
$593
St. LouisIstanbul
STL - IST
STLIST
Lambert-St Louis
Wed 3/18
5:15 am-10:45 pm
2 stops33h 30m
Istanbul
Wed 4/15
5:40 am-3:24 pm
2 stops17h 44m
$601
St. LouisIstanbul
STL - IST
STLIST
Lambert-St Louis
Mon 3/23
5:41 pm-10:45 pm
2 stops21h 04m
Istanbul
Thu 4/9
5:40 am-10:28 pm
2 stops24h 48m
$603
St. LouisIstanbul
STL - IST
STLIST
Lambert-St Louis
Sat 3/21
4:05 pm-10:45 pm
2 stops22h 40m
Istanbul
Thu 4/9
5:40 am-10:28 pm
2 stops24h 48m
$607
St. LouisIstanbul
STL - IST
STLIST
Lambert-St Louis
Mon 3/23
5:59 pm-3:50 am
2 stops25h 51m
Istanbul
Mon 3/30
5:20 pm-5:05 pm
2 stops31h 45m
$616
St. LouisIstanbul
STL - IST
STLIST
Lambert-St Louis
Mon 3/23
1:39 pm-3:50 am
2 stops30h 11m
Istanbul
Tue 4/7
6:00 am-8:42 pm
2 stops22h 42m
$627
St. LouisIstanbul
STL - IST
STLIST
Lambert-St Louis
Mon 3/23
10:12 am-3:50 am
2 stops33h 38m
Istanbul
Wed 4/8
6:00 am-8:42 pm
2 stops22h 42m
$627
Showing 1-10 of 16 results
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 February.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*2 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy2 stars | Trust Score*2 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 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?
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 February 6, 2026.
The best time to book flights from St. Louis to Istanbul Airport is 35 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 $483). Flying from St. Louis to Istanbul Airport in June is currently the most expensive (average of $1,160). 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?
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 90% 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 $738.
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 Chicago (ORD) have the shortest average one-way travel time for 1-stop routes: 13h 42m.
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 18m.
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 February 8, 2026.
Get a feel of what it's like to fly with Delta, Turkish Airlines, and Air Canada 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.
Overall
7.9
Entertainment
7.8
Comfort
7.9
Food
7.2
Boarding
8.1
Crew
8.5
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Overall
7.9
Entertainment
7.8
Comfort
7.9
Food
7.2
Boarding
8.1
Crew
8.5
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Overall
7.9
Entertainment
7.8
Comfort
7.9
Food
7.2
Boarding
8.1
Crew
8.5
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Overall
7.9
Entertainment
7.8
Comfort
7.9
Food
7.2
Boarding
8.1
Crew
8.5
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Overall
7.9
Entertainment
7.8
Comfort
7.9
Food
7.2
Boarding
8.1
Crew
8.5
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Overall
7.9
Entertainment
7.8
Comfort
7.9
Food
7.2
Boarding
8.1
Crew
8.5
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
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.
Traveling to a place near Istanbul Airport?
Book flights to Istanbul Airport if you plan to visit one of these locationsYalova
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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 February 8, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$576 | Average$872 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$586 | Average$1,089 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$617 | Average$847 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$627 | Average$948 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$633 | Average$1,110 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$687 | Average$1,153 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$866 | Average$1,301 | FlexibilityNo cancel fee | On-time77% |