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$566+ 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 5/23. Fares are subject to change and may not be available on all flights or dates of travel.
STL — IST
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
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 February 20, 2025.

Round-trip from

$668
(Expedia)

Popular in

June

Cheapest in

February

Average price

$928
From Lambert-St Louis to Istanbul
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($184 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 February 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 February 20, 2025.

This Expedia deal was found by Cheapflights users on 2/19. 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.
Wed 3/1911:39 amSTL - SAW
2 stops19h 06mBritish Airways
Wed 3/263:50 pmSAW - STL
2 stops35h 40mBritish Airways
Deal found 2/19$668
This Expedia deal was found by Cheapflights users on 2/19. 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.
Wed 3/1911:39 amSTL - IST
2 stops28h 51mBritish Airways
Wed 3/267:35 amIST - STL
2 stops22h 43mBritish Airways
Deal found 2/19$673
This Gotogate deal was found by Cheapflights users on 2/19. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/194:45 pmSTL - IST
1 stop17h 20mMultiple Airlines
Wed 3/267:00 pmIST - STL
2 stops52h 06mMultiple Airlines
Deal found 2/19$940
This United Airlines deal was found by Cheapflights users on 2/19. 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.
Wed 3/194:45 pmSTL - IST
1 stop17h 20mUnited Airlines
Thu 3/276:50 amIST - STL
2 stops21h 59mUnited Airlines
Deal found 2/19$942
This Delta deal was found by Cheapflights users on 2/19. 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.
Tue 3/186:10 amSTL - IST
2 stops26h 45mDelta
Thu 3/275:55 pmIST - STL
2 stops34h 57mDelta
Deal found 2/19$967
This Lufthansa deal was found by Cheapflights users on 2/19. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/194:45 pmSTL - IST
1 stop17h 20mLufthansa
Mon 3/246:55 pmIST - STL
2 stops36h 37mLufthansa
Deal found 2/19$1,010
This American Airlines deal was found by Cheapflights users on 2/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/112:21 pmSTL - SAW
2 stops16h 24mMultiple Airlines
Tue 3/183:50 pmSAW - STL
2 stops25h 08mMultiple Airlines
Deal found 2/19$1,018
This FlightHub deal was found by Cheapflights users on 2/18. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/112:21 pmSTL - IST
2 stops37h 59mQatar Airways
Fri 3/148:10 pmIST - STL
2 stops44h 48mQatar Airways
Deal found 2/18$1,051
This Air Canada deal was found by Cheapflights users on 2/19. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/113:50 pmSTL - IST
2 stops18h 15mAir Canada
Tue 3/183:00 pmIST - STL
3 stops28h 02mAir Canada
Deal found 2/19$1,087
This oojo deal was found by Cheapflights users on 2/19. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/17:23 amSTL - SAW
2 stops51h 22mQatar Airways
Fri 9/128:05 pmSAW - STL
2 stops31h 49mQatar Airways
Deal found 2/19$1,098
This FlightHub deal was found by Cheapflights users on 2/19. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/175:33 pmSTL - IST
1 stop14h 37mTurkish Airlines
Tue 3/257:35 amIST - STL
1 stop14h 48mTurkish Airlines
Deal found 2/19$1,262
This oojo deal was found by Cheapflights users on 2/19. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/79:50 amSTL - IST
2 stops25h 45mRoyal Jordanian
Fri 6/132:05 amIST - STL
2 stops25h 41mRoyal Jordanian
Deal found 2/19$1,592

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 20, 2025.

Fly from

St. Louis

Fly to

Istanbul

Route

Depart

Return

Price

St. LouisIstanbul

STL - SAW

STLSAW

Lambert-St Louis

Wed 3/19

11:39 am-2:45 pm

2 stops19h 06m

Istanbul Sabiha Gokcen

Wed 3/26

3:50 pm-7:30 pm

2 stops35h 40m

$668

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Wed 3/19

11:39 am-12:30 am

2 stops28h 51m

Istanbul

Wed 3/26

7:35 am-10:18 pm

2 stops22h 43m

$673

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Wed 3/19

4:45 pm-6:05 pm

1 stop17h 20m

Istanbul

Wed 3/26

7:00 pm-3:06 pm

2 stops52h 06m

$940

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Wed 3/19

4:45 pm-6:05 pm

1 stop17h 20m

Istanbul

Thu 3/27

6:50 am-8:49 pm

2 stops21h 59m

$942

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Tue 3/18

6:10 am-4:55 pm

2 stops26h 45m

Istanbul

Thu 3/27

5:55 pm-8:52 pm

2 stops34h 57m

$967

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Wed 3/19

4:45 pm-6:05 pm

1 stop17h 20m

Istanbul

Mon 3/24

6:55 pm-11:32 pm

2 stops36h 37m

$1,010

St. LouisIstanbul

STL - SAW

STLSAW

Lambert-St Louis

Tue 3/11

2:21 pm-2:45 pm

2 stops16h 24m

Istanbul Sabiha Gokcen

Tue 3/18

3:50 pm-8:58 am

2 stops25h 08m

$1,018

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Tue 3/11

2:21 pm-12:20 pm

2 stops37h 59m

Istanbul

Fri 3/14

8:10 pm-8:58 am

2 stops44h 48m

$1,051

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Tue 3/11

3:50 pm-6:05 pm

2 stops18h 15m

Istanbul

Tue 3/18

3:00 pm-11:02 am

3 stops28h 02m

$1,087

St. LouisIstanbul

STL - SAW

STLSAW

Lambert-St Louis

Fri 8/1

7:23 am-6:45 pm

2 stops51h 22m

Istanbul Sabiha Gokcen

Fri 9/12

8:05 pm-7:54 pm

2 stops31h 49m

$1,098

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Showing 1-10 of 19 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.

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 February 14, 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 February 20, 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 February 20, 2025.
Peruse reviews from past customers who have flown with Emirates, Delta and KLM 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.
Emirates
8.1
Very good
3,276 reviews

Boarding

8.1

Entertainment

8.2

Comfort

8.0

Crew

8.3

Food

7.9

Overall

8.1

Reviews

1 / 20

4.0
Okay

Anonymous,Dec 2024

IAD - DXB

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
3,276 reviews
Emirates
8.1
Very good
3,276 reviews

Boarding

8.1

Entertainment

8.2

Comfort

8.0

Crew

8.3

Food

7.9

Overall

8.1

Reviews

1 / 20

4.0
Okay

Anonymous,Dec 2024

IAD - DXB

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.

Delta
8.0
Very good
8,219 reviews
Emirates
8.1
Very good
3,276 reviews

Boarding

8.1

Entertainment

8.2

Comfort

8.0

Crew

8.3

Food

7.9

Overall

8.1

Reviews

1 / 20

4.0
Okay

Anonymous,Dec 2024

IAD - DXB

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
1,333 reviews
Emirates
8.1
Very good
3,276 reviews

Boarding

8.1

Entertainment

8.2

Comfort

8.0

Crew

8.3

Food

7.9

Overall

8.1

Reviews

1 / 20

4.0
Okay

Anonymous,Dec 2024

IAD - DXB

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
7.4
Good
3,613 reviews
Emirates
8.1
Very good
3,276 reviews

Boarding

8.1

Entertainment

8.2

Comfort

8.0

Crew

8.3

Food

7.9

Overall

8.1

Reviews

1 / 20

4.0
Okay

Anonymous,Dec 2024

IAD - DXB

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
8,765 reviews
Emirates
8.1
Very good
3,276 reviews

Boarding

8.1

Entertainment

8.2

Comfort

8.0

Crew

8.3

Food

7.9

Overall

8.1

Reviews

1 / 20

4.0
Okay

Anonymous,Dec 2024

IAD - DXB

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 $668. Other airlines that can offer you cheap pricing are Delta, from $975, and Lufthansa, from $1,002. British Airways is priced at 41% 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 February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$623Average$1,068FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$718Average$1,083FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$718Average$871FlexibilityNo cancel feeOn-time71%
LufthansaCheapest$764Average$1,144FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$878Average$1,212FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$1,042Average$1,389FlexibilityNo cancel feeOn-time67%
Turkish AirlinesCheapest$1,076Average$1,349FlexibilityNo cancel feeOn-time77%
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