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$630+ Cheap flights from St. Louis (STL) to Istanbul

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/18. Fares are subject to change and may not be available on all flights or dates of travel.
STL — IST
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
1 adult, Economy
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Cheapflights Tip: The best prices from Lambert-St Louis to Istanbul are usually found in February or October, booked 31 days in advance, depart on a Wednesday or Tuesday and return on a Monday

Cheap 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 28, 2025.

Round-trip from

$982
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$996
From Lambert-St Louis to Istanbul
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($185 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($33 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2025
Search Deals

Find flight deals from St. Louis to Istanbul

Cheapest flights from St. Louis to Istanbul
Explore the most affordable flight options available from St. Louis to Istanbul. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 28, 2025.

This Delta deal was found by Cheapflights users on 3/27. 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.
Tue 11/182:18 pmSTL - IST
2 stops28h 52mDelta
Tue 12/25:10 amIST - STL
2 stops27h 29mDelta
Deal found 3/27$630
This Gurufare deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1811:56 amSTL - SAW
2 stops17h 49mBritish Airways
Tue 12/23:50 pmSAW - STL
2 stops35h 25mBritish Airways
Deal found 3/27$693
This Kiwi.com deal was found by Cheapflights users on 3/27. 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 4/266:58 pmSTL - IST
1 stop37h 37mMultiple Airlines
Sat 5/34:35 amIST - STL
2 stops27h 31mMultiple Airlines
Deal found 3/27$982
This oojo deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/229:49 amSTL - IST
2 stops36h 31mQatar Airways
Mon 9/81:45 pmIST - STL
2 stops41h 40mQatar Airways
Deal found 3/27$1,032
This Ovago deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/284:45 pmSTL - IST
1 stop17h 20mLufthansa
Fri 4/46:10 amIST - STL
2 stops25h 05mLufthansa
Deal found 3/27$1,066
This Air Canada deal was found by Cheapflights users on 3/27. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/181:30 pmSTL - IST
2 stops25h 10mAir Canada
Sun 9/289:20 pmIST - STL
2 stops30h 37mAir Canada
Deal found 3/27$1,112
This FlightHub deal was found by Cheapflights users on 3/27. 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.
Tue 11/185:18 pmSTL - IST
1 stop13h 42mTurkish Airlines
Tue 12/27:35 amIST - STL
1 stop15h 43mTurkish Airlines
Deal found 3/27$1,202
This oojo deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/263:29 pmSTL - SAW
2 stops36h 41mQatar Airways
Sat 5/38:05 pmSAW - STL
2 stops34h 07mQatar Airways
Deal found 3/27$1,213
This United deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/181:30 pmSTL - IST
2 stops23h 50mUnited Airlines
Sun 9/286:10 amIST - STL
1 stop15h 20mUnited Airlines
Deal found 3/27$1,220
This Mytrip deal was found by Cheapflights users on 3/28. 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.
Wed 5/287:30 amSTL - SAW
2 stops30h 05mMultiple Airlines
Tue 6/109:40 amSAW - STL
3 stops22h 14mMultiple Airlines
Deal found 3/28$1,354
This Gurufare deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/38:05 pmSTL - IST
2 stops38h 45mBritish Airways
Wed 7/238:25 amIST - STL
2 stops19h 58mBritish Airways
Deal found 3/27$1,365
This Emirates deal was found by Cheapflights users on 3/27. 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 Emirates is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/183:15 pmSTL - IST
2 stops42h 15mEmirates
Mon 12/11:50 amIST - STL
2 stops29h 16mEmirates
Deal found 3/27$2,556

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 28, 2025.
Use the filters below to find and compare flights from St. Louis to Istanbul that are best for you.

Fly from

St. Louis

Fly to

Istanbul

Route

Depart

Return

Price

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Sat 4/26

6:58 pm-4:35 pm

1 stop37h 37m

Istanbul

Sat 5/3

4:35 am-12:06 am

2 stops27h 31m

$982

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Sun 5/18

1:30 pm-10:40 pm

2 stops25h 10m

Istanbul

Sun 9/28

9:20 pm-7:57 pm

2 stops30h 37m

$1,112

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Sat 4/26

1:46 pm-3:25 am

2 stops29h 39m

Istanbul

Sat 5/3

4:20 am-3:06 pm

2 stops18h 46m

$1,130

St. LouisIstanbul

STL - SAW

STLSAW

Lambert-St Louis

Fri 8/22

2:49 pm-3:20 pm

2 stops16h 31m

Istanbul Sabiha Gokcen

Mon 9/8

3:00 pm-4:08 pm

2 stops33h 08m

$1,168

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Sun 4/20

3:30 pm-5:00 pm

1 stop17h 30m

Istanbul

Wed 4/30

6:10 am-1:30 pm

1 stop15h 20m

$1,175

St. LouisIstanbul

STL - SAW

STLSAW

Lambert-St Louis

Sat 4/26

3:29 pm-12:10 pm

2 stops36h 41m

Istanbul Sabiha Gokcen

Sat 5/3

8:05 pm-10:12 pm

2 stops34h 07m

$1,213

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Sun 5/18

1:30 pm-9:20 pm

2 stops23h 50m

Istanbul

Sun 9/28

6:10 am-1:30 pm

1 stop15h 20m

$1,220

St. LouisIstanbul

STL - SAW

STLSAW

Lambert-St Louis

Wed 5/28

7:30 am-9:35 pm

2 stops30h 05m

Istanbul Sabiha Gokcen

Tue 6/10

9:40 am-11:54 pm

3 stops22h 14m

$1,354

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Mon 6/9

8:10 am-5:45 am

1 stop13h 35m

Istanbul

Wed 6/18

2:25 pm-10:45 pm

1 stop16h 20m

$1,606

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Sat 4/26

3:40 pm-9:35 pm

2 stops45h 55m

Istanbul

Fri 5/2

2:10 am-9:48 pm

2 stops27h 38m

$2,948

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Showing 1-10 of 13 results
1
2

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

Have a flexible travel schedule? Discover the best time to fly to Istanbul from St. Louis with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from St. Louis to Istanbul

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

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Istanbul. Price data was last updated on March 21, 2025.

The price you pay for your flight from St. Louis to Istanbul may vary depending on when you book. For the best chance of a lower fare, look to book 31 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, November is the cheapest month in which you can book a flight from St. Louis to Istanbul (average of $923). Flying from St. Louis to Istanbul in June is currently the most expensive (average of $1,423). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from STL to IST?

Find hourly flight availability from St. Louis to Istanbul. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 28, 2025.

It’s typically best to fly out from St. Louis to Istanbul at noon. Doing so could potentially save you 6% on the flight price compared to flying in the morning, which is usually more expensive.

Rainfall in Istanbul by month

Plan your trip to Istanbul by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Istanbul ranges from 0.4 - 3.9 inches per month. December is typically the wettest month, when rainfall can reach 3.9 in. July is typically the driest time to visit Istanbul when rainfall is around 0.4 in.

Temperature in Istanbul by month

Plan your trip to Istanbul by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Istanbul, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 41.0 F).

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 28, 2025.
Peruse reviews from past customers who have flown with Asiana Airlines, Emirates and Delta from St. Louis to Istanbul to help guide your decision. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Asiana Airlines
8.2
Very good
440 reviews

Entertainment

7.8

Overall

8.2

Comfort

8.0

Food

8.0

Boarding

8.3

Crew

8.5

Reviews

1 / 20
4.0
Okay

Ramón,Feb 2025

ICN - SGN

The same as my experience from NYC to Incheon, just 1 EVER LASTING LONG LINE. No group calling out anything, just telling everyone to line up.
Asiana Airlines
8.2
Very good
440 reviews
Asiana Airlines
8.2
Very good
440 reviews

Entertainment

7.8

Overall

8.2

Comfort

8.0

Food

8.0

Boarding

8.3

Crew

8.5

Reviews

1 / 20
4.0
Okay

Ramón,Feb 2025

ICN - SGN

The same as my experience from NYC to Incheon, just 1 EVER LASTING LONG LINE. No group calling out anything, just telling everyone to line up.
Emirates
8.0
Very good
3,190 reviews
Asiana Airlines
8.2
Very good
440 reviews

Entertainment

7.8

Overall

8.2

Comfort

8.0

Food

8.0

Boarding

8.3

Crew

8.5

Reviews

1 / 20
4.0
Okay

Ramón,Feb 2025

ICN - SGN

The same as my experience from NYC to Incheon, just 1 EVER LASTING LONG LINE. No group calling out anything, just telling everyone to line up.
Delta
8.0
Very good
7,897 reviews
Asiana Airlines
8.2
Very good
440 reviews

Entertainment

7.8

Overall

8.2

Comfort

8.0

Food

8.0

Boarding

8.3

Crew

8.5

Reviews

1 / 20
4.0
Okay

Ramón,Feb 2025

ICN - SGN

The same as my experience from NYC to Incheon, just 1 EVER LASTING LONG LINE. No group calling out anything, just telling everyone to line up.
Qatar Airways
7.4
Good
3,538 reviews
Asiana Airlines
8.2
Very good
440 reviews

Entertainment

7.8

Overall

8.2

Comfort

8.0

Food

8.0

Boarding

8.3

Crew

8.5

Reviews

1 / 20
4.0
Okay

Ramón,Feb 2025

ICN - SGN

The same as my experience from NYC to Incheon, just 1 EVER LASTING LONG LINE. No group calling out anything, just telling everyone to line up.
United Airlines
7.4
Good
8,603 reviews
Asiana Airlines
8.2
Very good
440 reviews

Entertainment

7.8

Overall

8.2

Comfort

8.0

Food

8.0

Boarding

8.3

Crew

8.5

Reviews

1 / 20
4.0
Okay

Ramón,Feb 2025

ICN - SGN

The same as my experience from NYC to Incheon, just 1 EVER LASTING LONG LINE. No group calling out anything, just telling everyone to line up.

Related info for your journey

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

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

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

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

    Cheapflights users have booked flights from St. Louis to Istanbul round-trip from $1,112. Other airlines that can offer you cheap pricing are Delta, from $1,130, and British Airways, from $1,168. Air Canada is priced at 2% lower than the current average price of a flight leaving 3 months from now.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from St. Louis to Istanbul by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

    Currently, November is the cheapest month in which you can book a flight from St. Louis to Istanbul (average of $923). Flying from St. Louis to Istanbul in June is currently the most expensive (average of $1,423). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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

Top 7 airlines flying from St. Louis to Istanbul

Discover the top 7 airlines that operate flights from St. Louis to Istanbul. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$623Average$1,040FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$718Average$1,064FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$718Average$871FlexibilityNo cancel feeOn-time71%
LufthansaCheapest$764Average$1,132FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$878Average$1,212FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$970Average$1,511FlexibilityNo cancel feeOn-time67%
Turkish AirlinesCheapest$1,162Average$1,352FlexibilityNo cancel feeOn-time77%
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