Find cheap flights from St. Louis to Istanbul - Compare and Save

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Everything you should know

Nonstop flights
Not available
There are currently no direct flights between St. Louis and Istanbul. You'll need to take a connecting flight to reach the destination.
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Top routes
STL - IST
Cheapest • 9% average savings
STL - SAW
Most popular
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When to book
6 weeks
in advance
Our data shows that travelers who book at least 6 weeks in advance save around 44% compared to booking last minute.
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When to travel
January
Cheapest • 41% price drop
June
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Frankfurt am Main (FRA)
Cheapest • Avg $983 (round-trip)
Chicago O'Hare Intl (ORD)
Shortest trip • 15h 30m (one-way)
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Flight Deals

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

 
Discover the best prices for you by selecting your travel dates on KAYAK.

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

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STL  St. Louis Lambert Airport-TR5 Treorchy Treherbert
5728 mimulti-stop
Multiple Airlines Logo
TR5  Treorchy Treherbert-STL St. Louis Lambert Airport
5728 mimulti-stop
Multiple Airlines
Booking Insights

Price, demand and travel trends for St. Louis to Istanbul flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

What's the cheapest day of the week to fly from St. Louis to Istanbul?

Based on deals KAYAK users found in the last 12 months, Sunday is the cheapest day of the week to fly from St. Louis to Istanbul. It’s 21% cheaper than the average day, while Saturday is the most expensive, with prices 12% higher.

What’s the cheapest month to fly from St. Louis to Istanbul?

•January is the cheapest month to fly from St. Louis to Istanbul at $595 round-trip.
•June ($1,353) and May ($1,294) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 127% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from St. Louis to Istanbul the cheapest?

Flights from St. Louis to Istanbul are cheapest 6 weeks before departure. Booking in this window typically costs about 44% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

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Key details for St. Louis to Istanbul flights

Low season

January
Beat the crowds with an average 40% drop in travelers.
The most popular month to fly with an average 56% increase in travelers.

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

Your St. Louis to Istanbul flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What cabin classes can I book on flights from St. Louis to Istanbul?

    Four cabin classes are available on flights from St. Louis to Istanbul:

    • Economy Class
    • Premium Economy Class
    • Business Class
    • First Class

    Prices vary by airline.

  • How long is a flight from St. Louis to Istanbul?

    A nonstop flight from St. Louis to Istanbul takes 00m, covering 5,728 miles.

  • Do I need a passport to fly from St. Louis to Istanbul?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a St. Louis to Istanbul flight?

    Round-trip flights from St. Louis to Istanbul range from $793 to $1,243, with an average of $1,010 over the past 12 months. Anything below $793 counts as a good deal.

  • How expensive are last-minute St. Louis to Istanbul flights?

    Last-minute fares on this route (booked within two weeks of departure) run 26% above the $1,010 route average. Book 6 weeks before departure for the lowest fares.

  • What car rental options are available in Istanbul?

    Since Istanbul is served by multiple airports, car rental options and rates can vary depending on which one you fly into.
    Near Istanbul Airport (IST) — daily rates from around $10:

    • CIRCULAR
    • Avec Car Rental
    • Ok Mobility
    • Alamo
    • Autounion Car Rental

    Near Istanbul Sabiha Gokcen Airport (SAW) — daily rates from around $12:

    • Avec Car Rental
    • CIRCULAR
    • Final Rentals
    • ESSENCE CAR RENTAL
    • 724Rent

  • Which airports can I use when flying from St. Louis to Istanbul?

    Flights from St. Louis to Istanbul usually depart from Lambert-St Louis (STL) and may arrive at several airports in Istanbul area, including Istanbul (IST) and Istanbul Sabiha Gokcen (SAW).

  • Which airports do connecting flights from St. Louis to Istanbul pass through?

    One-stop flights from St. Louis to Istanbul most commonly connect through:

    • Frankfurt am Main (FRA) - 53% of one-stop connections
    • Chicago O'Hare Intl (ORD) - 46% of one-stop connections
    • Seattle/Tacoma Intl (SEA) - 1% of one-stop connections

  • Can I save money by using flexible dates for flights from St. Louis to Istanbul?

    Yes. Flexible dates can save you up to 29% on flights from St. Louis to Istanbul. Sunday is the cheapest departure day at $807 round-trip on average, while Saturday is the most expensive at $1,135, a difference of $328.

    Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

  • How much time can I save by choosing a different layover airport from St. Louis to Istanbul?

    Flying via Chicago O'Hare Intl (ORD) gives the shortest average 1-stop total travel time at 15h 30m, compared with 15h 56m via Frankfurt am Main (FRA) and 25h 36m via Seattle/Tacoma Intl (SEA).

  • What is the time difference between St. Louis and Istanbul?

    Istanbul is 8 hours ahead of St. Louis (Turkey Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Istanbul?

    Some of the most popular sights in Istanbul are Taksim Square, Sultan Ahmet Camii and Beyazit Meydani. These are among the most viewed places in Istanbul on KAYAK.

Your guide to booking St. Louis to Istanbul flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Sunday departure and avoid flying on Saturday. On this route, Sunday flights average $807, about $328 less than Saturday fares (29% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 6 weeks before you fly. On this route, that window historically saves about 44% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your St. Louis to Istanbul trip for January. Fares historically average $595 round-trip in that month - typically $758 less than the most expensive month, which is June (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Istanbul Sabiha Gokcen Airport.

    • Isg Sabiha Gökçen Airport Hotel
    • Radisson Blu Hotel & Spa, Istanbul Tuzla
    • Home Plus Hotel

More options for your flight from St. Louis to Istanbul

Complete your trip to Istanbul with a hotel stay or car rental

Car rentals in Istanbul
Hotels in Istanbul
Vacations in Istanbul