$588+ 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 3/31. Fares are subject to change and may not be available on all flights or dates of travel.
STL — IST
Apr 22 — Apr 291
Round-trip
1 adult, Economy
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Find cheap flights from St. Louis to Istanbul with Cheapflights
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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
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Best
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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 March 23, 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 March 23, 2026.
This Delta deal was found by Cheapflights users on 3/23. 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.
Wed 4/225:59 pm
STL
- IST
2 stops25h 31m
Delta
Wed 4/296:00 am
IST
- STL
2 stops22h 44m
Delta
Deal found 3/23![Delta logo]()
$637
This Billigflug deal was found by Cheapflights users on 3/22. 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 Billigflug is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/63:25 pm
STL
- IST
2 stops25h 55m
Multiple Airlines
Wed 5/134:25 am
IST
- STL
2 stops24h 44m
Multiple Airlines
Deal found 3/22![Multiple Airlines logo]()
$683
This Delta deal was found by Cheapflights users on 3/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/45:35 pm
STL
- IST
2 stops25h 55m
Delta
Mon 5/115:20 pm
IST
- STL
2 stops31h 56m
Delta
Deal found 3/20![Delta logo]()
$687
This Delta deal was found by Cheapflights users on 3/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/34:41 pm
STL
- IST
2 stops26h 49m
Delta
Wed 5/136:00 am
IST
- STL
2 stops23h 29m
Delta
Deal found 3/19![Delta logo]()
$688
This Delta deal was found by Cheapflights users on 3/21. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/205:59 pm
STL
- IST
2 stops25h 31m
Delta
Sat 5/26:00 am
IST
- STL
2 stops18h 42m
Delta
Deal found 3/21![Delta logo]()
$737
This Delta deal was found by Cheapflights users on 3/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/134:13 pm
STL
- IST
2 stops26h 37m
Delta
Thu 11/194:50 am
IST
- STL
2 stops22h 11m
Delta
Deal found 3/20![Delta logo]()
$738
This FlightHub deal was found by Cheapflights users on 3/23. 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 4/2212:15 pm
STL
- IST
2 stops29h 50m
Lufthansa
Wed 4/295:40 am
IST
- STL
1 stop15h 45m
Lufthansa
Deal found 3/23![Lufthansa logo]()
$772
This Justfly.com deal was found by Cheapflights users on 3/19. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/21:27 pm
STL
- IST
2 stops24h 18m
Lufthansa
Wed 11/186:30 am
IST
- STL
1 stop16h 25m
Lufthansa
Deal found 3/19![Lufthansa logo]()
$778
This Expedia deal was found by Cheapflights users on 3/19. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/37:09 pm
STL
- IST
2 stops18h 26m
Lufthansa
Wed 5/135:40 am
IST
- STL
1 stop15h 45m
Lufthansa
Deal found 3/19![Lufthansa logo]()
$781
This United Airlines deal was found by Cheapflights users on 3/21. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/37:09 pm
STL
- IST
2 stops18h 26m
United Airlines
Wed 5/135:40 am
IST
- STL
1 stop15h 45m
United Airlines
Deal found 3/21![United Airlines logo]()
$785
This Delta deal was found by Cheapflights users on 3/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/1710:07 am
STL
- IST
2 stops22h 13m
Delta
Fri 4/246:00 am
IST
- STL
2 stops26h 25m
Delta
Deal found 3/20![Delta logo]()
$787
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 March 23, 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 March 23, 2026.
This Delta deal was found by Cheapflights users on 3/21. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/205:59 pm
STL
- IST
2 stops25h 31m
Delta
Sat 5/26:00 am
IST
- STL
2 stops18h 42m
Delta
Deal found 3/21![Delta logo]()
$737
This KLM deal was found by Cheapflights users on 3/23. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/115:29 pm
STL
- IST
2 stops14h 51m
Multiple Airlines
Tue 4/214:25 am
IST
- STL
2 stops20h 17m
Multiple Airlines
Deal found 3/23![Multiple Airlines logo]()
$962
This United Airlines deal was found by Cheapflights users on 3/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/26:15 am
STL
- IST
3 stops22h 45m
United Airlines
Sat 5/95:50 am
IST
- STL
2 stops22h 01m
United Airlines
Deal found 3/19![United Airlines logo]()
$1,034
This KLM deal was found by Cheapflights users on 3/21. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/91:59 pm
STL
- IST
2 stops18h 21m
KLM
Sun 7/196:00 am
IST
- STL
2 stops18h 58m
KLM
Deal found 3/21![KLM logo]()
$1,302
This Delta deal was found by Cheapflights users on 3/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/1710:07 am
STL
- IST
2 stops22h 13m
Delta
Fri 4/246:00 am
IST
- STL
2 stops26h 25m
Delta
Deal found 3/20![Delta logo]()
$787
This Delta deal was found by Cheapflights users on 3/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/264:13 pm
STL
- IST
2 stops27h 17m
Delta
Wed 9/94:25 am
IST
- STL
2 stops19h 32m
Delta
Deal found 3/19![Delta logo]()
$852
This Delta deal was found by Cheapflights users on 3/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/85:45 pm
STL
- IST
2 stops25h 45m
Delta
Wed 7/156:00 am
IST
- STL
2 stops18h 55m
Delta
Deal found 3/20![Delta logo]()
$872
This United Airlines deal was found by Cheapflights users on 3/22. 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.
Wed 4/151:10 pm
STL
- IST
2 stops19h 45m
United Airlines
Sun 4/191:55 pm
IST
- STL
2 stops17h 16m
United Airlines
Deal found 3/22![United Airlines logo]()
$1,180
This Turkish Airlines deal was found by Cheapflights users on 3/21. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/207:45 am
STL
- IST
1 stop14h 00m
Multiple Airlines
Sat 5/22:45 pm
IST
- STL
1 stop16h 00m
Multiple Airlines
Deal found 3/21![Multiple Airlines logo]()
$1,212
This Delta deal was found by Cheapflights users on 3/22. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/34:41 pm
STL
- IST
2 stops26h 49m
Delta
Fri 6/56:00 am
IST
- STL
2 stops23h 09m
Delta
Deal found 3/22![Delta logo]()
$977
This Delta deal was found by Cheapflights users on 3/23. 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.
Sat 5/165:36 pm
STL
- IST
2 stops25h 54m
Delta
Sat 5/235:20 pm
IST
- STL
2 stops30h 50m
Delta
Deal found 3/23![Delta logo]()
$1,072
This Delta deal was found by Cheapflights users on 3/18. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/284:25 pm
STL
- IST
2 stops24h 55m
Delta
Mon 6/85:20 pm
IST
- STL
2 stops29h 11m
Delta
Deal found 3/18![Delta logo]()
$1,312
Last-minute flights from St. Louis to IstanbulDiscover last-minute flight deals from St. Louis to Istanbul. Data last updated March 23, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Istanbul. Data last updated March 23, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 3/21. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/2810:50 am
STL
- IST
2 stops32h 40m
Delta
Sat 4/45:20 pm
IST
- STL
2 stops31h 45m
Delta
Deal found 3/21![Delta logo]()
$1,107
This Delta deal was found by Cheapflights users on 3/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/11:39 pm
STL
- IST
2 stops29h 51m
Delta
Wed 4/155:20 pm
IST
- STL
2 stops29h 09m
Delta
Deal found 3/20![Delta logo]()
$1,050
This Gotogate deal was found by Cheapflights users on 3/20. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/13:30 pm
STL
- IST
1 stop13h 30m
Lufthansa
Wed 4/155:40 am
IST
- STL
1 stop15h 45m
Lufthansa
Deal found 3/20![Lufthansa logo]()
$1,097
This KLM deal was found by Cheapflights users on 3/23. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/115:29 pm
STL
- IST
2 stops14h 51m
Multiple Airlines
Tue 4/214:25 am
IST
- STL
2 stops20h 17m
Multiple Airlines
Deal found 3/23![Multiple Airlines logo]()
$962
This IEagle deal was found by Cheapflights users on 3/23. 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 IEagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/117:45 am
STL
- IST
1 stop23h 05m
Turkish Airlines
Tue 4/216:30 am
IST
- STL
1 stop22h 43m
Turkish Airlines
Deal found 3/23![Turkish Airlines logo]()
$1,094
This Delta deal was found by Cheapflights users on 3/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/1710:07 am
STL
- IST
2 stops22h 13m
Delta
Fri 4/246:00 am
IST
- STL
2 stops26h 25m
Delta
Deal found 3/20![Delta logo]()
$787
This Delta deal was found by Cheapflights users on 3/21. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/205:59 pm
STL
- IST
2 stops25h 31m
Delta
Sat 5/26:00 am
IST
- STL
2 stops18h 42m
Delta
Deal found 3/21![Delta logo]()
$737
This Justfly.com deal was found by Cheapflights users on 3/21. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/206:55 pm
STL
- IST
2 stops23h 10m
Lufthansa
Sat 5/25:50 pm
IST
- STL
1 stop27h 35m
Lufthansa
Deal found 3/21![Lufthansa logo]()
$837
This Delta deal was found by Cheapflights users on 3/23. 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.
Wed 4/225:59 pm
STL
- IST
2 stops25h 31m
Delta
Wed 4/296:00 am
IST
- STL
2 stops22h 44m
Delta
Deal found 3/23![Delta logo]()
$637
This FlightHub deal was found by Cheapflights users on 3/23. 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 4/2212:15 pm
STL
- IST
2 stops29h 50m
Lufthansa
Wed 4/295:40 am
IST
- STL
1 stop15h 45m
Lufthansa
Deal found 3/23![Lufthansa logo]()
$772
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 March 23, 2026.
Search for one-way flight options from St. Louis to Istanbul. Find affordable one-way fares based on user searches. Data last updated March 23, 2026.
This oojo deal was found by Cheapflights users on 3/20. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/317:00 am
STL
- IST
2 stops44h 55m
Qatar Airways
Deal found 3/20![Qatar Airways logo]()
$588
This oojo deal was found by Cheapflights users on 3/22. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/307:00 am
STL
- IST
2 stops44h 55m
Qatar Airways
Deal found 3/22![Qatar Airways logo]()
$590
This Kiwi.com deal was found by Cheapflights users on 3/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/3112:14 pm
STL
- IST
3 stops47h 16m
Multiple Airlines
Deal found 3/20![Multiple Airlines logo]()
$595
This oojo deal was found by Cheapflights users on 3/20. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/17:00 am
STL
- IST
2 stops39h 20m
Qatar Airways
Deal found 3/20![Qatar Airways logo]()
$600
This Kiwi.com deal was found by Cheapflights users on 3/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/18:16 pm
STL
- IST
3 stops39h 14m
Multiple Airlines
Deal found 3/20![Multiple Airlines logo]()
$615
This oojo deal was found by Cheapflights users on 3/20. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/297:00 am
STL
- IST
2 stops39h 20m
Qatar Airways
Deal found 3/20![Qatar Airways logo]()
$628
This Kiwi.com deal was found by Cheapflights users on 3/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/298:06 pm
STL
- IST
3 stops39h 24m
Multiple Airlines
Deal found 3/20![Multiple Airlines logo]()
$641
This Kiwi.com deal was found by Cheapflights users on 3/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/174:19 pm
STL
- IST
3 stops34h 31m
Multiple Airlines
Deal found 3/22![Multiple Airlines logo]()
$651
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 March 23, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $683 (Billigflug) |
One-way from | $588 (oojo) |
Popular in | June |
Cheapest in | December |
Average price | $802 |
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 March 23, 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 - IST
STLIST
Lambert-St Louis
Mon 4/20
5:59 pm-3:30 am
2 stops25h 31m
Istanbul
Sat 5/2
6:00 am-4:42 pm
2 stops18h 42m
$737
St. LouisIstanbul
STL - IST
STLIST
Lambert-St Louis
Fri 4/17
10:07 am-4:20 pm
2 stops22h 13m
Istanbul
Fri 4/24
6:00 am-12:25 am
2 stops26h 25m
$787
St. LouisIstanbul
STL - IST
STLIST
Lambert-St Louis
Wed 8/26
4:13 pm-3:30 am
2 stops27h 17m
Istanbul
Wed 9/9
4:25 am-3:57 pm
2 stops19h 32m
$852
St. LouisIstanbul
STL - IST
STLIST
Lambert-St Louis
Wed 7/8
5:45 pm-3:30 am
2 stops25h 45m
Istanbul
Wed 7/15
6:00 am-4:55 pm
2 stops18h 55m
$872
St. LouisIstanbul
STL - IST
STLIST
Lambert-St Louis
Sat 4/11
5:29 pm-4:20 pm
2 stops14h 51m
Istanbul
Tue 4/21
4:25 am-4:42 pm
2 stops20h 17m
$962
St. LouisIstanbul
STL - IST
STLIST
Lambert-St Louis
Sun 5/3
4:41 pm-3:30 am
2 stops26h 49m
Istanbul
Fri 6/5
6:00 am-9:09 pm
2 stops23h 09m
$977
St. LouisIstanbul
STL - IST
STLIST
Lambert-St Louis
Sat 5/2
6:15 am-1:00 pm
3 stops22h 45m
Istanbul
Sat 5/9
5:50 am-7:51 pm
2 stops22h 01m
$1,034
St. LouisIstanbul
STL - IST
STLIST
Lambert-St Louis
Sat 5/16
5:36 pm-3:30 am
2 stops25h 54m
Istanbul
Sat 5/23
5:20 pm-4:10 pm
2 stops30h 50m
$1,072
St. LouisIstanbul
STL - IST
STLIST
Lambert-St Louis
Wed 4/15
1:10 pm-4:55 pm
2 stops19h 45m
Istanbul
Sun 4/19
1:55 pm-11:11 pm
2 stops17h 16m
$1,180
Quickest round-trip
St. LouisIstanbul
STL - IST
STLIST
Lambert-St Louis
Mon 4/20
7:45 am-5:45 am
1 stop14h 00m
Istanbul
Sat 5/2
2:45 pm-10:45 pm
1 stop16h 00m
$1,212
Showing 1-10 of 22 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 March.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*2 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 Accuracy- | Trust Score*1 star | |
| 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
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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 March 13, 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 March 23, 2026.
Get a feel of what it's like to fly with Delta,Turkish Airlines, andAir 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
Crew
8.5
Boarding
8.1
Comfort
7.9
Food
7.2
Entertainment
7.8
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Overall
7.9
Crew
8.5
Boarding
8.1
Comfort
7.9
Food
7.2
Entertainment
7.8
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Overall
7.9
Crew
8.5
Boarding
8.1
Comfort
7.9
Food
7.2
Entertainment
7.8
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Overall
7.9
Crew
8.5
Boarding
8.1
Comfort
7.9
Food
7.2
Entertainment
7.8
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Overall
7.9
Crew
8.5
Boarding
8.1
Comfort
7.9
Food
7.2
Entertainment
7.8
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Overall
7.9
Crew
8.5
Boarding
8.1
Comfort
7.9
Food
7.2
Entertainment
7.8
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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Other flights to Istanbul
Explore flights to Istanbul departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on March 23, 2026.
St. Louis and Istanbul flights
Browse other St. Louis and Istanbul flight options. Last updated on March 23, 2026.
Other flights from St. Louis
Browse through other flights departing from St. Louis. Flights are based on user searches made on Cheapflights and were last updated on March 23, 2026.
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Check out other popular destinations found by fellow travelers in 2026
Top 8 airlines flying from St. Louis to Istanbul
Discover the top 8 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 March 23, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$545 | Average$1,204 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$576 | Average$837 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$585 | Average$1,066 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$608 | Average$847 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$627 | Average$948 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$633 | Average$1,070 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$687 | Average$1,153 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$866 | Average$1,336 | FlexibilityNo cancel fee | On-time77% |