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$400+ 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
Feb 8 — Feb 151
Sat 2/8
Sat 2/15
1 adult, Economy
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The best prices from Lambert-St Louis to Istanbul are usually found in February or October, booked 55 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 February 3, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$957
(Delta)

One-way from

$400
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$882
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
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One-way flight from Lambert-St Louis to Istanbul
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Highest demand for flights based on searches. 14% potential increase in price ($198 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($30 potential savings vs. average RT price).
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Average for round-trip flights in February 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 February 3, 2025.

This Delta deal was found by Cheapflights users on 2/3. 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 4/145:32 pmSTL - IST
2 stops25h 53mDelta
Tue 5/134:20 amIST - STL
2 stops21h 33mDelta
Deal found 2/3$957
This Cheapflightsfares deal was found by Cheapflights users on 2/3. 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.
Wed 4/163:30 pmSTL - IST
1 stop13h 35mLufthansa
Wed 5/142:00 pmIST - STL
2 stops33h 47mLufthansa
Deal found 2/3$985
This United Airlines deal was found by Cheapflights users on 2/3. 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 4/133:30 pmSTL - IST
1 stop13h 35mUnited Airlines
Sun 5/116:10 amIST - STL
1 stop15h 20mUnited Airlines
Deal found 2/3$1,136
This FlightHub deal was found by Cheapflights users on 2/3. 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.
Mon 4/143:40 pmSTL - IST
1 stop15h 00mTurkish Airlines
Tue 5/136:30 amIST - STL
1 stop16h 17mTurkish Airlines
Deal found 2/3$1,334
This Air Canada deal was found by Cheapflights users on 2/3. 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.
Sat 2/83:50 pmSTL - IST
2 stops21h 55mMultiple Airlines
Mon 2/243:00 pmIST - STL
3 stops28h 47mMultiple Airlines
Deal found 2/3$1,356
This Air Canada deal was found by Cheapflights users on 2/2. 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 6/87:30 amSTL - IST
2 stops21h 35mAir Canada
Mon 7/78:20 pmIST - STL
2 stops26h 56mAir Canada
Deal found 2/2$1,471
This oojo deal was found by Cheapflights users on 2/3. 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 6/86:03 amSTL - IST
2 stops29h 32mRoyal Jordanian
Sat 7/52:05 amIST - STL
2 stops25h 41mRoyal Jordanian
Deal found 2/3$1,700
This Emirates deal was found by Cheapflights users on 2/2. 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.
Mon 7/145:18 pmSTL - IST
2 stops23h 52mEmirates
Wed 8/202:10 amIST - STL
2 stops26h 54mEmirates
Deal found 2/2$2,865
This Asiana Airlines deal was found by Cheapflights users on 2/2. 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 Asiana Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/117:10 pmSTL - IST
2 stops37h 00mAsiana Airlines
Wed 7/21:45 amIST - STL
2 stops35h 13mAsiana Airlines
Deal found 2/2$3,480

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 February 3, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Mon 4/14

5:32 pm-3:25 am

2 stops25h 53m

Istanbul

Tue 5/13

4:20 am-5:53 pm

2 stops21h 33m

$957

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Wed 4/16

3:30 pm-1:05 pm

1 stop13h 35m

Istanbul

Wed 5/14

2:00 pm-3:47 pm

2 stops33h 47m

$985

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Sun 4/13

3:30 pm-1:05 pm

1 stop13h 35m

Istanbul

Sun 5/11

6:10 am-1:30 pm

1 stop15h 20m

$1,136

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Mon 4/14

3:40 pm-2:40 pm

1 stop15h 00m

Istanbul

Tue 5/13

6:30 am-2:47 pm

1 stop16h 17m

$1,334

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Sun 6/1

3:30 pm-9:20 pm

1 stop21h 50m

Istanbul

Sun 9/28

7:45 pm-7:57 pm

2 stops32h 12m

$1,364

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Sun 6/8

7:30 am-1:05 pm

2 stops21h 35m

Istanbul

Mon 7/7

8:20 pm-3:16 pm

2 stops26h 56m

$1,471

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Sun 6/8

6:03 am-7:35 pm

2 stops29h 32m

Istanbul

Sat 7/5

2:05 am-7:46 pm

2 stops25h 41m

$1,700

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Mon 7/14

5:18 pm-1:10 am

2 stops23h 52m

Istanbul

Wed 8/20

2:10 am-9:04 pm

2 stops26h 54m

$2,865

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Wed 6/11

7:10 pm-4:10 pm

2 stops37h 00m

Istanbul

Wed 7/2

1:45 am-4:58 am

2 stops35h 13m

$3,480

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Mon 3/31

5:24 pm-1:05 am

2 stops47h 41m

$400

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/3

Showing 1-10 of 11 results
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Compare providers for flights from St. Louis to Istanbul

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Istanbul in February.
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
SmartFaresPrice Accuracy1 starTrust 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 January 31, 2025.

The best time to book flights from St. Louis to Istanbul Airport is 55 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 February 3, 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 February 3, 2025.
Get a feel of what it's like to fly with Asiana Airlines, Emirates and Delta from St. Louis to Istanbul by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Asiana Airlines
8.3
Very good
455 reviews

Comfort

8.1

Entertainment

7.8

Boarding

8.4

Crew

8.5

Overall

8.3

Food

8.1

Reviews

1 / 20

2.0
Mediocre

Alex,Nov 2024

ICN - SIN

Next time I never flight with Asiana Airlines, not anymore, this is my first time also my last time

Asiana Airlines
8.3
Very good
455 reviews
Asiana Airlines
8.3
Very good
455 reviews

Comfort

8.1

Entertainment

7.8

Boarding

8.4

Crew

8.5

Overall

8.3

Food

8.1

Reviews

1 / 20

2.0
Mediocre

Alex,Nov 2024

ICN - SIN

Next time I never flight with Asiana Airlines, not anymore, this is my first time also my last time

Emirates
8.1
Very good
3,311 reviews
Asiana Airlines
8.3
Very good
455 reviews

Comfort

8.1

Entertainment

7.8

Boarding

8.4

Crew

8.5

Overall

8.3

Food

8.1

Reviews

1 / 20

2.0
Mediocre

Alex,Nov 2024

ICN - SIN

Next time I never flight with Asiana Airlines, not anymore, this is my first time also my last time

Delta
8.0
Very good
8,415 reviews
Asiana Airlines
8.3
Very good
455 reviews

Comfort

8.1

Entertainment

7.8

Boarding

8.4

Crew

8.5

Overall

8.3

Food

8.1

Reviews

1 / 20

2.0
Mediocre

Alex,Nov 2024

ICN - SIN

Next time I never flight with Asiana Airlines, not anymore, this is my first time also my last time

United Airlines
7.4
Good
8,892 reviews
Asiana Airlines
8.3
Very good
455 reviews

Comfort

8.1

Entertainment

7.8

Boarding

8.4

Crew

8.5

Overall

8.3

Food

8.1

Reviews

1 / 20

2.0
Mediocre

Alex,Nov 2024

ICN - SIN

Next time I never flight with Asiana Airlines, not anymore, this is my first time also my last time

Turkish Airlines
7.3
Good
3,896 reviews
Asiana Airlines
8.3
Very good
455 reviews

Comfort

8.1

Entertainment

7.8

Boarding

8.4

Crew

8.5

Overall

8.3

Food

8.1

Reviews

1 / 20

2.0
Mediocre

Alex,Nov 2024

ICN - SIN

Next time I never flight with Asiana Airlines, not anymore, this is my first time also my last time

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 $957, Delta will fly you from St. Louis to Istanbul Airport and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Lufthansa and United Airlines - these airlines can fly you to your destination from $985 and $1,136, respectively. You may be able to fly from St. Louis to Istanbul Airport for 15% 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.

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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.
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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 February 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$623Average$977FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$718Average$1,088FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$718Average$871FlexibilityNo cancel feeOn-time71%
LufthansaCheapest$764Average$1,170FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$878Average$1,212FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$1,042Average$1,387FlexibilityNo cancel feeOn-time67%
Turkish AirlinesCheapest$1,047Average$1,333FlexibilityNo cancel feeOn-time77%
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