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$494+ 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 3/6. Fares are subject to change and may not be available on all flights or dates of travel.
STL — IST
ene. 26 — feb. 21
dom. 1/26
dom. 2/2
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 (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 enero 21, 2025.

Round-trip from

$647
(Air France)

One-way from

$494
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$1,027
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 ($196 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 January 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 enero 21, 2025.

This Air France deal was found by Cheapflights users on 1/21. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 3/211:50 amSTL - IST
2 stops20h 05mMultiple Airlines
vie. 3/145:10 amIST - STL
2 stops20h 55mMultiple Airlines
Deal found 1/21$647
This Gotogate deal was found by Cheapflights users on 1/21. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 3/510:49 amSTL - IST
2 stops28h 41mBritish Airways
mié. 3/127:35 amIST - STL
2 stops22h 43mBritish Airways
Deal found 1/21$696
This oojo deal was found by Cheapflights users on 1/21. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 3/211:25 amSTL - SAW
2 stops18h 25mBritish Airways
vie. 3/147:30 pmSAW - STL
2 stops31h 59mBritish Airways
Deal found 1/21$712
This American Airlines deal was found by Cheapflights users on 1/21. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 3/211:04 amSTL - SAW
3 stops18h 46mMultiple Airlines
dom. 3/163:50 pmSAW - STL
2 stops34h 09mMultiple Airlines
Deal found 1/21$884
This Cheapflightsfares deal was found by Cheapflights users on 1/21. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 3/25:34 pmSTL - IST
2 stops20h 11mLufthansa
vie. 3/146:50 amIST - STL
1 stop16h 05mLufthansa
Deal found 1/21$892
This Delta deal was found by Cheapflights users on 1/21. 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.
mié. 5/144:00 pmSTL - IST
2 stops27h 25mDelta
mié. 5/284:20 amIST - STL
2 stops20h 25mDelta
Deal found 1/21$990
This oojo deal was found by Cheapflights users on 1/20. 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.
mar. 2/43:10 pmSTL - SAW
2 stops42h 55mQatar Airways
mar. 2/111:40 pmSAW - STL
2 stops41h 29mQatar Airways
Deal found 1/20$1,010
This United Airlines deal was found by Cheapflights users on 1/21. 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.
lun. 2/171:39 pmSTL - IST
2 stops19h 26mUnited Airlines
vie. 2/286:50 amIST - STL
2 stops22h 54mUnited Airlines
Deal found 1/21$1,015
This Justfly.com deal was found by Cheapflights users on 1/20. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 2/283:50 pmSTL - IST
2 stops17h 15mAir Canada
vie. 3/73:00 pmIST - STL
3 stops30h 12mAir Canada
Deal found 1/20$1,100
This FlightHub deal was found by Cheapflights users on 1/21. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 2/45:30 pmSTL - IST
1 stop13h 40mTurkish Airlines
mié. 2/127:35 amIST - STL
1 stop17h 03mTurkish Airlines
Deal found 1/21$1,297
This oojo deal was found by Cheapflights users on 1/21. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 5/142:57 pmSTL - IST
2 stops37h 48mRoyal Jordanian
mar. 5/272:05 amIST - STL
2 stops29h 18mRoyal Jordanian
Deal found 1/21$1,758
This oojo deal was found by Cheapflights users on 1/21. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 3/58:40 amSTL - IST
2 stops44h 45mEmirates
mar. 3/111:50 amIST - STL
2 stops28h 25mEmirates
Deal found 1/21$1,956

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 enero 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

dom. 3/2

11:50 am-4:55 pm

2 stops20h 05m

Istanbul

vie. 3/14

5:10 am-6:05 pm

2 stops20h 55m

$647

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

mié. 3/5

10:49 am-12:30 am

2 stops28h 41m

Istanbul

mié. 3/12

7:35 am-10:18 pm

2 stops22h 43m

$696

St. LouisIstanbul

STL - SAW

STLSAW

Lambert-St Louis

dom. 3/2

11:25 am-2:50 pm

2 stops18h 25m

Istanbul Sabiha Gokcen

vie. 3/14

7:30 pm-7:29 pm

2 stops31h 59m

$712

St. LouisIstanbul

STL - SAW

STLSAW

Lambert-St Louis

dom. 3/2

11:04 am-2:50 pm

3 stops18h 46m

Istanbul Sabiha Gokcen

dom. 3/16

3:50 pm-5:59 pm

2 stops34h 09m

$884

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

dom. 3/2

3:45 pm-10:45 pm

1 stop22h 00m

Istanbul

vie. 3/14

6:50 am-2:55 pm

1 stop16h 05m

$892

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

mié. 5/14

4:00 pm-3:25 am

2 stops27h 25m

Istanbul

mié. 5/28

4:20 am-4:45 pm

2 stops20h 25m

$990

St. LouisIstanbul

STL - SAW

STLSAW

Lambert-St Louis

mar. 2/4

3:10 pm-7:05 pm

2 stops42h 55m

Istanbul Sabiha Gokcen

mar. 2/11

1:40 pm-10:09 pm

2 stops41h 29m

$1,010

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

lun. 2/17

1:39 pm-6:05 pm

2 stops19h 26m

Istanbul

vie. 2/28

6:50 am-8:44 pm

2 stops22h 54m

$1,015

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

vie. 2/28

3:50 pm-6:05 pm

2 stops17h 15m

Istanbul

vie. 3/7

3:00 pm-12:12 pm

3 stops30h 12m

$1,100

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

mar. 2/4

5:30 pm-4:10 pm

1 stop13h 40m

Istanbul

mié. 2/12

7:35 am-3:38 pm

1 stop17h 03m

$1,297

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/21

Showing 1-10 of 14 results
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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?

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 17, 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 55 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 enero 21, 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 enero 21, 2025.
Emirates
8.1
Very good
3,360 reviews

Comfort

8.0

Boarding

8.1

Crew

8.3

Entertainment

8.2

Overall

8.1

Food

7.9

Reviews

1 / 10

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.

Emirates
8.1
Very good
3,360 reviews
Emirates
8.1
Very good
3,360 reviews

Comfort

8.0

Boarding

8.1

Crew

8.3

Entertainment

8.2

Overall

8.1

Food

7.9

Reviews

1 / 10

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.

KLM
7.8
Good
1,341 reviews
Emirates
8.1
Very good
3,360 reviews

Comfort

8.0

Boarding

8.1

Crew

8.3

Entertainment

8.2

Overall

8.1

Food

7.9

Reviews

1 / 10

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.

Qatar Airways
7.5
Good
3,752 reviews
Emirates
8.1
Very good
3,360 reviews

Comfort

8.0

Boarding

8.1

Crew

8.3

Entertainment

8.2

Overall

8.1

Food

7.9

Reviews

1 / 10

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.

United Airlines
7.4
Good
8,985 reviews
Emirates
8.1
Very good
3,360 reviews

Comfort

8.0

Boarding

8.1

Crew

8.3

Entertainment

8.2

Overall

8.1

Food

7.9

Reviews

1 / 10

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.

Turkish Airlines
7.3
Good
3,931 reviews
Emirates
8.1
Very good
3,360 reviews

Comfort

8.0

Boarding

8.1

Crew

8.3

Entertainment

8.2

Overall

8.1

Food

7.9

Reviews

1 / 10

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.

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 $696. Other airlines that can offer you cheap pricing are Lufthansa, from $892, and Qatar Airways, from $960. British Airways is priced at 38% 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

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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 enero 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$623Average$977FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$718Average$1,099FlexibilityNo cancel feeOn-time70%
LufthansaCheapest$764Average$1,144FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$827Average$986FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$878Average$1,212FlexibilityNo cancel feeOn-time69%
Turkish AirlinesCheapest$968Average$1,329FlexibilityNo cancel feeOn-time77%
Air CanadaCheapest$1,042Average$1,391FlexibilityNo cancel feeOn-time67%
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