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$986+ Cheap flights from St. Louis (STL) to Istanbul (IST)

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 8/27. Fares are subject to change and may not be available on all flights or dates of travel.
STL — IST
Mar 15 — Mar 221
Sat 3/15
Sat 3/22
1 adult, Economy
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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 (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 10, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$986
(oojo)

Popular in

June

Cheapest in

February

Average price

$975
Provider with most accurate pricing for Lambert-St Louis-Istanbul flight deals.
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Provider most trusted by Cheapflights users for Lambert-St Louis-Istanbul flights.
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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).
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Cheapest flight prices on average. 2% potential price decrease ($34 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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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 10, 2025.

This oojo deal was found by Cheapflights users on 3/9. 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 8/279:49 amSTL - IST
2 stops36h 31mQatar Airways
Sun 9/148:05 pmIST - STL
2 stops35h 20mQatar Airways
Deal found 3/9$986
This Kiwi.com deal was found by Cheapflights users on 3/9. 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 4/226:30 amSTL - IST
1 stop26h 30mMultiple Airlines
Fri 5/24:35 amIST - STL
2 stops27h 31mMultiple Airlines
Deal found 3/9$998
This Delta deal was found by Cheapflights users on 3/9. 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 3/115:37 pmSTL - IST
2 stops26h 33mDelta
Thu 3/205:10 amIST - STL
2 stops26h 21mDelta
Deal found 3/9$1,048
This Ovago deal was found by Cheapflights users on 3/9. 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.
Mon 4/285:35 pmSTL - IST
2 stops19h 45mLufthansa
Fri 5/96:10 amIST - STL
1 stop15h 20mLufthansa
Deal found 3/9$1,079
This United deal was found by Cheapflights users on 3/9. 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 3/9$1,140
This FlightHub deal was found by Cheapflights users on 3/10. 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 4/223:40 pmSTL - IST
1 stop15h 00mTurkish Airlines
Fri 5/26:30 amIST - STL
1 stop16h 17mTurkish Airlines
Deal found 3/10$1,217
This oojo deal was found by Cheapflights users on 3/9. 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 6/11:45 pmSTL - IST
2 stops21h 30mBritish Airways
Sun 9/288:15 amIST - STL
2 stops23h 10mBritish Airways
Deal found 3/9$1,308
This oojo deal was found by Cheapflights users on 3/9. 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.
Thu 4/1712:00 pmSTL - IST
2 stops24h 30mRoyal Jordanian
Sat 4/262:10 amIST - STL
2 stops29h 23mRoyal Jordanian
Deal found 3/9$1,394
This Air Canada deal was found by Cheapflights users on 3/10. 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.
Tue 6/101:30 pmSTL - IST
2 stops19h 30mAir Canada
Sun 6/227:15 amIST - STL
2 stops20h 43mAir Canada
Deal found 3/10$1,445
This oojo deal was found by Cheapflights users on 3/9. 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 3/116:15 amSTL - IST
2 stops55h 40mEmirates
Wed 3/191:50 amIST - STL
2 stops28h 17mEmirates
Deal found 3/9$2,177
This oojo deal was found by Cheapflights users on 3/9. 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 8/226:00 pmSTL - IST
2 stops50h 50mAsiana Airlines
Sun 9/71:45 amIST - STL
2 stops30h 42mAsiana Airlines
Deal found 3/9$3,474

Find flights from St. Louis to Istanbul within your budget

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 10, 2025.

Fly from

St. Louis

Fly to

Istanbul

Route

Depart

Return

Price

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Wed 8/27

9:49 am-6:20 am

2 stops36h 31m

Istanbul

Sun 9/14

8:05 pm-11:25 pm

2 stops35h 20m

$986

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Tue 4/22

6:30 am-5:00 pm

1 stop26h 30m

Istanbul

Fri 5/2

4:35 am-12:06 am

2 stops27h 31m

$998

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Mon 4/7

10:30 am-3:25 am

2 stops32h 55m

Istanbul

Mon 4/14

4:20 am-9:36 pm

2 stops25h 16m

$1,070

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Mon 4/28

5:35 pm-9:20 pm

2 stops19h 45m

Istanbul

Fri 5/9

6:10 am-1:30 pm

1 stop15h 20m

$1,079

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

$1,140

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Tue 4/22

3:40 pm-2:40 pm

1 stop15h 00m

Istanbul

Fri 5/2

6:30 am-2:47 pm

1 stop16h 17m

$1,217

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Sun 6/1

1:45 pm-7:15 pm

2 stops21h 30m

Istanbul

Sun 9/28

8:15 am-11:25 pm

2 stops23h 10m

$1,308

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Fri 5/23

1:30 pm-10:40 pm

2 stops25h 10m

Istanbul

Sun 6/1

7:15 am-7:58 pm

2 stops20h 43m

$1,354

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Thu 4/17

12:00 pm-8:30 pm

2 stops24h 30m

Istanbul

Sat 4/26

2:10 am-11:33 pm

2 stops29h 23m

$1,394

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Tue 4/22

3:40 pm-1:10 am

2 stops25h 30m

Istanbul

Thu 5/1

2:10 am-9:48 pm

2 stops27h 38m

$2,398

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/9

Showing 1-10 of 11 results
1
2

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.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*1 star
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
GotogatePrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • 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.
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.

Travel insights for flights from St. Louis to Istanbul

Get recent, data-driven insights about flights from St. Louis to Istanbul including ideal travel times, pricing trends, and 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 March 7, 2025.

The best time to book flights from St. Louis to Istanbul Airport is 31 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, November is the cheapest month in which you can book a flight from St. Louis to Istanbul Airport (average of $923). Flying from St. Louis to Istanbul Airport 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 10, 2025.

It’s typically best to fly out from St. Louis to Istanbul Airport 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 Airport 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 Airport 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 Airport, 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 10, 2025.
Asiana Airlines
8.2
Very good
440 reviews

Boarding

8.4

Crew

8.5

Entertainment

7.8

Overall

8.2

Comfort

8.0

Food

8.0

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

Boarding

8.4

Crew

8.5

Entertainment

7.8

Overall

8.2

Comfort

8.0

Food

8.0

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
3,214 reviews
Asiana Airlines
8.2
Very good
440 reviews

Boarding

8.4

Crew

8.5

Entertainment

7.8

Overall

8.2

Comfort

8.0

Food

8.0

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
7,973 reviews
Asiana Airlines
8.2
Very good
440 reviews

Boarding

8.4

Crew

8.5

Entertainment

7.8

Overall

8.2

Comfort

8.0

Food

8.0

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
3,545 reviews
Asiana Airlines
8.2
Very good
440 reviews

Boarding

8.4

Crew

8.5

Entertainment

7.8

Overall

8.2

Comfort

8.0

Food

8.0

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
8,631 reviews
Asiana Airlines
8.2
Very good
440 reviews

Boarding

8.4

Crew

8.5

Entertainment

7.8

Overall

8.2

Comfort

8.0

Food

8.0

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?

    If you book a flight to Istanbul from St. Louis, you will be flying from Lambert-St Louis, which is the city’s only airport. Lambert-St Louis (STL) is located 12.7 mi from the center of St. Louis. There are 0 flights from Lambert-St Louis to Istanbul per day from 7 different airlines.

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

    Currently priced at $986, Qatar Airways will fly you from St. Louis to Istanbul Airport and back. In addition to Qatar Airways, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Delta and Lufthansa - these airlines can fly you to your destination from $1,070 and $1,079, respectively. You may be able to fly from St. Louis to Istanbul Airport for 13% less than the average price by searching for these airlines.

  • 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 Airport?

    Currently, November is the cheapest month in which you can book a flight from St. Louis to Istanbul Airport (average of $923). Flying from St. Louis to Istanbul Airport 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

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Alternative routes for St. Louis to Istanbul

See prices for flight routes from nearby airports that may be better suited for you.
Kansas City to Istanbul flights
St. Louis to Sabiha Gokcen flights
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Springfield to Istanbul flights

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 10, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$680Average$1,044FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$718Average$1,077FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$718Average$871FlexibilityNo cancel feeOn-time71%
LufthansaCheapest$764Average$1,134FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$878Average$1,212FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$1,042Average$1,389FlexibilityNo cancel feeOn-time67%
Turkish AirlinesCheapest$1,076Average$1,352FlexibilityNo cancel feeOn-time77%
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