Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from St. Louis to Istanbul from $566

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Istanbul departing on 6/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from St. Louis to Istanbul

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
5:24 pm - 3:30 am
STL
-
IST
26h 06m
2 stops
Delta Logo
4:25 am - 4:58 pm
IST
-
STL
20h 33m
2 stops
$823Delta
Mon, Jul 6 - Fri, Jul 17
Qatar Airways Logo
12:27 pm - 7:20 am
STL
-
IST
34h 53m
2 stops
Qatar Airways Logo
8:50 am - 8:09 pm
IST
-
STL
43h 19m
2 stops
$940Qatar Airways
Sun, Apr 26 - Fri, May 1
Delta Logo
7:01 pm - 1:20 am
STL
-
IST
22h 19m
2 stops
Delta Logo
6:00 am - 5:05 pm
IST
-
STL
19h 05m
2 stops
$953Delta
Fri, May 8 - Fri, May 15
Qatar Airways Logo
12:27 pm - 7:20 am
STL
-
IST
34h 53m
2 stops
Qatar Airways Logo
11:00 am - 10:17 pm
IST
-
STL
43h 17m
2 stops
$972Qatar Airways
Mon, Apr 20 - Sat, Apr 25
Delta Logo
5:59 pm - 1:20 am
STL
-
IST
23h 21m
2 stops
Delta Logo
5:20 pm - 5:44 pm
IST
-
STL
32h 24m
2 stops
$1,023Delta
Sat, Apr 25 - Mon, May 4
Delta Logo
10:50 am - 1:20 am
STL
-
IST
30h 30m
2 stops
Delta Logo
5:20 pm - 4:42 pm
IST
-
STL
31h 22m
2 stops
$1,038Delta
Sat, Apr 25 - Mon, May 4
Delta Logo
6:15 pm - 1:20 am
STL
-
IST
23h 05m
2 stops
Delta Logo
4:25 am - 4:55 pm
IST
-
STL
20h 30m
2 stops
$1,053Delta
Mon, May 18 - Wed, Sep 9
Delta Logo
5:35 pm - 1:20 am
STL
-
IST
23h 45m
2 stops
Delta Logo
6:00 am - 8:44 pm
IST
-
STL
22h 44m
2 stops
$1,058Delta
Mon, Apr 20 - Sat, Apr 25
KLM Logo
11:25 am - 4:20 pm
STL
-
IST
20h 55m
2 stops
KLM Logo
6:00 am - 5:00 pm
IST
-
STL
19h 00m
2 stops
$1,069KLM
Wed, May 27 - Sun, Jun 7
Delta Logo
6:10 pm - 3:30 am
STL
-
IST
25h 20m
2 stops
Delta Logo
4:25 am - 4:58 pm
IST
-
STL
20h 33m
2 stops
$1,093Delta
Mon, Jul 6 - Fri, Jul 17

Delta flights from St. Louis to Istanbul Airport

Our best Delta deals on St. Louis to Istanbul Airport flight tickets
Delta
May 4
STL5:35 pmLambert-St Louis
25h 55m
2 stops
IST3:30 amIstanbul
May 11
IST5:20 pmIstanbul
30h 50m
2 stops
STL4:10 pmLambert-St Louis
$638
Delta
Aug 15
STL4:13 pmLambert-St Louis
27h 17m
2 stops
IST3:30 amIstanbul
Sep 2
IST4:25 amIstanbul
24h 06m
2 stops
STL8:31 pmLambert-St Louis
$813
Delta
Jul 6
STL5:24 pmLambert-St Louis
26h 06m
2 stops
IST3:30 amIstanbul
Jul 17
IST4:25 amIstanbul
20h 33m
2 stops
STL4:58 pmLambert-St Louis
$823

KLM flights from St. Louis to Istanbul Airport

Our best KLM deals on St. Louis to Istanbul Airport flight tickets
KLM
Apr 20
STL5:35 pmLambert-St Louis
14h 45m
2 stops
IST4:20 pmIstanbul
May 2
IST6:00 amIstanbul
18h 42m
2 stops
STL4:42 pmLambert-St Louis
$849
KLM
May 27
STL11:25 amLambert-St Louis
20h 55m
2 stops
IST4:20 pmIstanbul
Jun 7
IST6:00 amIstanbul
19h 00m
2 stops
STL5:00 pmLambert-St Louis
$1,069
KLM
Jun 8
STL4:13 pmLambert-St Louis
16h 07m
2 stops
IST4:20 pmIstanbul
Jun 28
IST6:00 amIstanbul
19h 00m
2 stops
STL5:00 pmLambert-St Louis
$1,230

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to Istanbul Airport 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, momondo users made 832,500 searches. Data last updated April 10, 2026.
Use the filters below to find and compare flights from St. Louis to Istanbul Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Mon 7/6

5:24 pm-3:30 am

2 stops26h 06m

Istanbul

Fri 7/17

4:25 am-4:58 pm

2 stops20h 33m

$823

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Sun 4/26

12:27 pm-7:20 am

2 stops34h 53m

Istanbul

Fri 5/1

8:50 am-8:09 pm

2 stops43h 19m

$940

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Fri 5/8

7:01 pm-1:20 am

2 stops22h 19m

Istanbul

Fri 5/15

6:00 am-5:05 pm

2 stops19h 05m

$953

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Mon 4/20

12:27 pm-7:20 am

2 stops34h 53m

Istanbul

Sat 4/25

11:00 am-10:17 pm

2 stops43h 17m

$972

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Sat 4/25

5:59 pm-1:20 am

2 stops23h 21m

Istanbul

Mon 5/4

5:20 pm-5:44 pm

2 stops32h 24m

$1,023

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Sat 4/25

10:50 am-1:20 am

2 stops30h 30m

Istanbul

Mon 5/4

5:20 pm-4:42 pm

2 stops31h 22m

$1,038

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Mon 5/18

6:15 pm-1:20 am

2 stops23h 05m

Istanbul

Wed 9/9

4:25 am-4:55 pm

2 stops20h 30m

$1,053

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Mon 4/20

5:35 pm-1:20 am

2 stops23h 45m

Istanbul

Sat 4/25

6:00 am-8:44 pm

2 stops22h 44m

$1,058
Quickest round-trip

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Wed 5/27

11:25 am-4:20 pm

2 stops20h 55m

Istanbul

Sun 6/7

6:00 am-5:00 pm

2 stops19h 00m

$1,069

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Mon 7/6

6:10 pm-3:30 am

2 stops25h 20m

Istanbul

Fri 7/17

4:25 am-4:58 pm

2 stops20h 33m

$1,093

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Istanbul from

How to get the cheapest flight ticket from St. Louis to Istanbul Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between St. Louis and Istanbul Airport?

What is the cheapest month to fly to Istanbul Airport?

In general, December is the cheapest month to fly from St. Louis to Istanbul Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $607. If you don’t want to visit Istanbul Airport in December, then you should wait until January to fly from St. Louis, when ticket prices are also cheap, with an average price of $661.

How far in advance should I book a flight to Istanbul Airport?

You are more likely to see cheaper flights to Istanbul Airport from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Istanbul Airport for around $920 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Istanbul Airport from St. Louis for as low as $727 on momondo.

Can stopping save me money on St. Louis to Istanbul Airport flights?

You could potentially save up to 6% on your flight if you consider stops on a St. Louis to Istanbul Airport flight.

How have St. Louis to Istanbul Airport flight prices changed over time?

As of April 2026, prices for St. Louis to Istanbul Airport flights are approximately 14% more expensive when compared to flights at the same time last year.

When to book flights from St. Louis to Istanbul Airport

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Istanbul Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap St. Louis to Istanbul Airport (STL to IST) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Istanbul Airport

Fastest flight time

15h 45m

Direct flights

None
The fastest flight from St. Louis to Istanbul Airport takes 15h 45m
There are no direct flights from St. Louis to Istanbul Airport. There are no popular flight routes from St. Louis to Istanbul Airport.
Search flight deals

Frequently asked questions about flying from St. Louis to Istanbul Airport

  • How far is Lambert-St Louis to Istanbul by plane?

    Lambert-St Louis and Istanbul are 5707.5 mi apart from one another. Typically, this will take 15h 45m by plane in normal conditions.

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Istanbul Airport?

    Prices for flights from Lambert-St Louis Airport to Istanbul Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Lambert-St Louis Airport to Istanbul Airport?

  • How old do you have to be to fly from Lambert-St Louis Airport to Istanbul Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Istanbul Airport.

  • What documentation or ID do you need to fly to Istanbul Airport?

    The travel and health documents required for your trip to Istanbul Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Istanbul Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from St. Louis to Istanbul Airport?

Best airlines flying from St. Louis to Istanbul Airport

Compare and see reviews for airlines that fly from St. Louis to Istanbul Airport with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $545Free CancellationRating
7.1
11,564 reviews
Search American Airlines flights
British AirwaysPriceFrom $576Free CancellationRating
6.7
7,869 reviews
Search British Airways flights
LufthansaPriceFrom $585Free CancellationRating
6.8
7,905 reviews
Search Lufthansa flights
KLMPriceFrom $608Free CancellationRating
7.7
1,493 reviews
Search KLM flights
DeltaPriceFrom $613Free CancellationRating
7.9
8,399 reviews
Search Delta flights
Air CanadaPriceFrom $627Free CancellationRating
7.1
10,915 reviews
Search Air Canada flights
United AirlinesPriceFrom $633Free CancellationRating
7.4
9,562 reviews
Search United Airlines flights
Turkish AirlinesPriceFrom $866Free CancellationRating
7.3
4,306 reviews
Search Turkish Airlines flights

Traveling to a place near Istanbul?

Book flights to Istanbul if you plan to visit one of these locations
Yalova

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Istanbul?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from St. Louis to Istanbul for you.

Can I find flights from St. Louis to Istanbul with flexible booking policies on momondo?

Flights from St. Louis to Istanbul with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from St. Louis to Istanbul?

Once all potential St. Louis to Istanbul flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from St. Louis to Istanbul right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Istanbul, momondo offers a useful price alert feature which will track prices for flights to Istanbul from St. Louis and alert you when they change.

An easier way to manage your Istanbul Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sun 5/10
Sun 5/17
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Istanbul

Popular cities in Turkey

Popular flights according to clicks in the last 7 days on momondo
Flights to Istanbul Sabiha Gokcen Airportfrom $646