$588+ 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 3/31. 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
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
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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
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.
Wed 4/225:35 pm
STL
- SAW
2 stops15h 30m
KLM
Wed 4/298:50 am
SAW
- STL
2 stops19h 54m
KLM
Deal found 3/23![KLM logo]()
$932
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.
Wed 4/225:35 pm
STL
- SAW
2 stops15h 30m
KLM
Wed 4/298:50 am
SAW
- STL
2 stops19h 54m
KLM
Deal found 3/23![KLM logo]()
$932
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 KAYAK 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2011:14 am
STL
- SAW
2 stops26h 56m
Iberia
Sat 5/210:00 am
SAW
- STL
2 stops41h 33m
Iberia
Deal found 3/21![Iberia logo]()
$1,347
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 Qatar Airways 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/276:35 am
STL
- SAW
2 stops45h 35m
Qatar Airways
Sun 6/71:35 pm
SAW
- STL
2 stops42h 19m
Qatar Airways
Deal found 3/20![Qatar Airways logo]()
$1,731
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 KLM 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/315:59 pm
STL
- SAW
2 stops19h 01m
KLM
Sat 4/48:50 am
SAW
- STL
2 stops23h 08m
KLM
Deal found 3/22![KLM logo]()
$1,246
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 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 3/23. 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 Qatar Airways 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/161:21 pm
STL
- SAW
2 stops38h 49m
Qatar Airways
Sat 5/231:35 pm
SAW
- STL
2 stops42h 19m
Qatar Airways
Deal found 3/19![Qatar Airways logo]()
$1,749
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/289:39 am
STL
- SAW
2 stops26h 01m
Iberia
Sat 6/610:00 am
SAW
- STL
2 stops30h 33m
Iberia
Deal found 3/23![Iberia logo]()
$1,923
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
This Qatar Airways 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/282:36 pm
STL
- SAW
2 stops37h 34m
Qatar Airways
Mon 6/81:35 pm
SAW
- STL
2 stops42h 19m
Qatar Airways
Deal found 3/19![Qatar Airways logo]()
$2,072
This KLM 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/2810:49 am
STL
- SAW
2 stops22h 16m
KLM
Mon 6/82:40 pm
SAW
- STL
2 stops33h 37m
KLM
Deal found 3/22![KLM logo]()
$2,073
This KLM 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/236:04 pm
STL
- SAW
2 stops20h 51m
KLM
Sun 5/318:50 am
SAW
- STL
2 stops39h 56m
KLM
Deal found 3/19![KLM logo]()
$2,440
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 KLM 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/315:59 pm
STL
- SAW
2 stops19h 01m
KLM
Sat 4/48:50 am
SAW
- STL
2 stops23h 08m
KLM
Deal found 3/22![KLM logo]()
$1,246
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
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.
Wed 4/225:35 pm
STL
- SAW
2 stops15h 30m
KLM
Wed 4/298:50 am
SAW
- STL
2 stops19h 54m
KLM
Deal found 3/23![KLM logo]()
$932
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 3/297:52 am
STL
- SAW
3 stops53h 13m
Multiple Airlines
Deal found 3/20![Multiple Airlines logo]()
$634
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 3/20. 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 3/314:51 pm
STL
- SAW
3 stops55h 14m
Multiple Airlines
Deal found 3/20![Multiple Airlines logo]()
$650
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
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
- SAW
3 stops39h 09m
Multiple Airlines
Deal found 3/20![Multiple Airlines logo]()
$654
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.
Sat 3/284:21 pm
STL
- SAW
3 stops44h 44m
Multiple Airlines
Deal found 3/20![Multiple Airlines logo]()
$662
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 March 23, 2026.
Round-trip from | $637 (Delta) |
|---|---|
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 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 - SAW
STLSAW
Lambert-St Louis
Wed 4/22
5:35 pm-5:05 pm
2 stops15h 30m
Istanbul Sabiha Gokcen
Wed 4/29
8:50 am-8:44 pm
2 stops19h 54m
$932
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
Showing 1-10 of 36 resultsSorted by cheapest first
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-TR5
STL-IST
STL-SAW
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
STL-TR5
STL-IST
STL-SAW
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 March 13, 2026.
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 $483). Flying from St. Louis to Istanbul 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?
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.
See what other customers who have flown with Delta,Turkish Airlines, andAir 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.
Crew
8.5
Boarding
8.1
Comfort
7.9
Food
7.2
Overall
7.9
Entertainment
7.8
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Crew
8.5
Boarding
8.1
Comfort
7.9
Food
7.2
Overall
7.9
Entertainment
7.8
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Crew
8.5
Boarding
8.1
Comfort
7.9
Food
7.2
Overall
7.9
Entertainment
7.8
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Crew
8.5
Boarding
8.1
Comfort
7.9
Food
7.2
Overall
7.9
Entertainment
7.8
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Crew
8.5
Boarding
8.1
Comfort
7.9
Food
7.2
Overall
7.9
Entertainment
7.8
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Crew
8.5
Boarding
8.1
Comfort
7.9
Food
7.2
Overall
7.9
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.
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Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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Alternative routes for St. Louis to Istanbul
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Complete your trip
Complete your trip to Istanbul by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from St. Louis to Istanbul by cabin class
Find flights from St. Louis to Istanbul, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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.
Popular flight searches
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% |