STL - IST

$564 Find Cheap Flights from St. Louis to Istanbul Airport - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Istanbul departing on 9/23. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

Save 21% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Everything you should know

Cheapest round-trip
$807
Typical prices: $576-$721
Lufthansa
Wed 1/13Tue 1/19
STL - IST • 2 stops
Cheapest one-way
$425
Typical prices: $644-$683
Multiple Airlines
Wed 9/23
STL - IST • 3 stops
Nonstop flights
Not available
There are currently no direct flights between St. Louis and Istanbul. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Frankfurt am Main (FRA)
Cheapest • Avg $1,043 (round-trip)
Chicago (ORD)
Shortest trip • 14h 18m (one-way)
Insights
Insights
Insights
Insights
When to book
5 weeks
in advance
Our data shows that travelers who book at least 5 weeks in advance save around 25% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
December
Cheapest • 36% price drop
July
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Istanbul!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from St. Louis to Istanbul (STL-IST)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Istanbul that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from St. Louis to Istanbul

Wed, Jan 13 - Tue, Jan 19
Lufthansa Logo
7:04 pm - 2:50 amSTL  Lambert-St Louis-IST Istanbul
22h 46m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss
Lufthansa Logo
4:30 am - 6:38 pmIST  Istanbul-STL Lambert-St Louis
23h 08m2 stops Munich Franz Josef Strauss Washington, D.C. Dulles Intl
$807Lufthansa
Wed, Jan 13 - Tue, Jan 19
Lufthansa Logo
3:40 pm - 10:45 pmSTL  Lambert-St Louis-IST Istanbul
22h 05m1 stop Frankfurt am Main
Lufthansa Logo
4:30 am - 7:40 pmIST  Istanbul-STL Lambert-St Louis
24h 10m2 stops Munich Franz Josef Strauss Newark
$819Lufthansa
Sun, Jan 10 - Sun, Jan 24
Multiple Airlines Logo
3:40 pm - 10:45 pmSTL  Lambert-St Louis-IST Istanbul
22h 05m1 stop Frankfurt am Main
Multiple Airlines Logo
5:30 am - 3:26 pmIST  Istanbul-STL Lambert-St Louis
42h 56m2 stops Kastrup Copenhagen Toronto Pearson Intl
$848Multiple Airlines
Tue, Sep 8 - Mon, Feb 8
British Airways Logo
8:07 pm - 1:05 amSTL  Lambert-St Louis-IST Istanbul
20h 58m2 stops Chicago O'Hare Intl London Heathrow
British Airways Logo
6:40 pm - 4:43 pmIST  Istanbul-STL Lambert-St Louis
31h 03m2 stops London Heathrow Chicago O'Hare Intl
$865British Airways
Sun, Jan 10 - Sun, Jan 24
United Airlines Logo
6:30 am - 10:45 pmSTL  Lambert-St Louis-IST Istanbul
31h 15m3 stops Newark Montreal Pierre Elliott Trudeau Intl Frankfurt am Main
United Airlines Logo
6:30 am - 11:09 pmIST  Istanbul-STL Lambert-St Louis
25h 39m2 stops Frankfurt am Main Chicago O'Hare Intl
$879United Airlines
Mon, Sep 14 - Tue, Sep 29
Multiple Airlines Logo
3:30 pm - 1:00 pmSTL  Lambert-St Louis-IST Istanbul
13h 30m1 stop Frankfurt am Main
Multiple Airlines Logo
5:40 am - 12:13 pmIST  Istanbul-STL Lambert-St Louis
38h 33m3 stops Frankfurt am Main Houston George Bush Intcntl Chicago O'Hare Intl
$903Multiple Airlines
Mon, Sep 14 - Tue, Sep 29
United Airlines Logo
3:30 pm - 9:25 pmSTL  Lambert-St Louis-IST Istanbul
21h 55m1 stop Frankfurt am Main
United Airlines Logo
5:40 am - 9:21 pmIST  Istanbul-STL Lambert-St Louis
23h 41m3 stops Frankfurt am Main Austin Bergstrom Chicago O'Hare Intl
$908United Airlines
Sun, Jan 10 - Sun, Jan 24
British Airways Logo
2:54 pm - 12:50 amSTL  Lambert-St Louis-IST Istanbul
24h 56m2 stops Boston Logan Intl London Heathrow
British Airways Logo
9:25 pm - 9:08 pmIST  Istanbul-STL Lambert-St Louis
32h 43m2 stops London Heathrow Chicago O'Hare Intl
$955British Airways
Wed, Sep 30 - Thu, Oct 8
KLM Logo
11:21 am - 4:20 pmSTL  Lambert-St Louis-IST Istanbul
20h 59m2 stops Minneapolis St Paul Amsterdam Schiphol
KLM Logo
4:25 am - 6:15 pmIST  Istanbul-STL Lambert-St Louis
21h 50m2 stops Paris Charles de Gaulle Atlanta Hartsfield-Jackson
$1,028KLM
Sun, Aug 23 - Tue, Sep 8
Delta Logo
3:39 pm - 3:30 amSTL  Lambert-St Louis-IST Istanbul
27h 51m2 stops Atlanta Hartsfield-Jackson Paris Charles de Gaulle
Delta Logo
5:20 pm - 3:54 pmIST  Istanbul-STL Lambert-St Louis
30h 34m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson
$1,212Delta
Booking Insights

KAYAK's insights & trends for St. Louis to Istanbul flights

Get data-powered insights and trends into flights from St. Louis to Istanbul to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from St. Louis to Istanbul Airport?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from St. Louis to Istanbul Airport departing in January.

Flight prices are typical for this route right now.

Flights to Istanbul Airport from St. Louis usually cost between $694 and $1,355 in January.
The lowest price found in the past 5 days was $807 on Lufthansa (Jan 13-Jan 19).

What is the cheapest month to fly from St. Louis to Istanbul Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from St. Louis to Istanbul Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from St. Louis to Istanbul Airport is December, where tickets cost $597 (return) on average. On the other hand, the most expensive months are June and May, where the average cost of round-trip tickets is $1,357 and $1,225 respectively.

How far in advance should I book a flight from St. Louis to Istanbul Airport?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from St. Louis to Istanbul Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from St. Louis to Istanbul Airport, you should book around 5 weeks before departure, which saves you about 25% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 13 weeks before departure.

Find deals

Good to know

Low season

February

Cheapest flight

$564
Best time to beat the crowds but there is an average 5% increase in price.
Most popular time to fly with an average 11% increase in price.
Flight from St. Louis to Istanbul Airport

When to book flights from St. Louis to Istanbul

Are your dates flexible? Find out the best times to travel from St. Louis to Istanbul based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking St. Louis to Istanbul Airport flights

  • What is the cheapest flight from St. Louis to Istanbul Airport?

    In the last 5 days, the lowest price for a flight from St. Louis to Istanbul Airport was $425 for a one-way ticket and $807 for a round-trip.

  • Do I need a passport to fly between St. Louis and Istanbul Airport?

    A passport is required to fly from St. Louis to Istanbul Airport.

  • Which airports will I be using when flying from St. Louis to Istanbul Airport?

    When flying out of St. Louis you will be using Lambert-St Louis. You will be landing at Istanbul Airport, also known as Istanbul.

  • Which aircraft models fly most regularly from St. Louis to Istanbul Airport?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from St. Louis to Istanbul Airport?

    oneworld, SkyTeam, and Star Alliance are the airline alliances operating flights between St. Louis and Istanbul Airport, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from St. Louis to Istanbul, KLM or Delta?

    The two airlines most popular with KAYAK users for flights from St. Louis to Istanbul are KLM and Delta. With an average price for the route of $1,042 and an overall rating of 7.8, KLM is the most popular choice. Delta is also a great choice for the route, with an average price of $944 and an overall rating of 7.8.

  • How does KAYAK find such low prices on flights from St. Louis to Istanbul Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from St. Louis to Istanbul Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from St. Louis to Istanbul Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Istanbul Airport from St. Louis is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from St. Louis to Istanbul Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Istanbul Airport with an airline and back to St. Louis with another airline. Booking your flights between St. Louis and IST can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis to Istanbul Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Istanbul Airport from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight from St. Louis to Istanbul

Information on your arrival and departure airports

St. Louis (STL)
Istanbul (IST)