What is the cheapest airline that flies from Lambert-St Louis to Istanbul?

Delta, United Airlines, and KLM are the most popular carriers operating from Lambert-St Louis to Istanbul

What airlines fly to Istanbul?

Lufthansa, Turkish Airlines and Delta are the top three most popular airlines that fly to Istanbul from St. Louis according to our data. Lufthansa is the first choice among our users, with 52% of people opting to fly with this airline when traveling to Istanbul. Keep in mind that there are 8 different airlines that fly to Istanbul on a routine basis, so you have a few additional options to choose from.

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

Prices for flights from Lambert-St Louis Airport to Istanbul were last updated today.

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

The number of operators available for flights from Lambert-St Louis Airport to Istanbul is 8 as of April 2026.

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

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Lambert-St Louis Airport to Istanbul.

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

The travel and health documents you'll need for your trip to Istanbul may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Istanbul. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$435 Cheap Flights from St. Louis to Istanbul in 2026

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

Prices are currently low for flights on this route. Typical prices usually range from $1,299 to $889. The lowest price recently found on this route was $684.

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Find the cheapest flights from St. Louis to Istanbul

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:10 pm - 3:30 am

STL

IST

25h 20m

2 stops

4:25 am - 11:53 pm

IST

STL

27h 28m

2 stops

$684Delta

Mon, Jul 6 - Fri, Jul 17

6:10 pm - 3:30 am

STL

IST

25h 20m

2 stops

4:25 am - 11:53 pm

IST

STL

27h 28m

2 stops

$685Delta

Mon, Jul 6 - Fri, Jul 17

5:45 pm - 3:30 am

STL

IST

25h 45m

2 stops

5:55 pm - 5:06 pm

IST

STL

32h 11m

2 stops

$694Delta

Wed, Sep 16 - Tue, Nov 3

6:48 pm - 2:05 am

STL

IST

23h 17m

2 stops

5:40 am - 6:56 pm

IST

STL

21h 16m

2 stops

$823Lufthansa

Mon, Jul 27 - Tue, Aug 25

3:30 pm - 4:55 pm

STL

IST

17h 25m

1 stop

5:40 am - 5:30 pm

IST

STL

19h 50m

2 stops

$835Lufthansa

Mon, Jul 27 - Tue, Aug 25

4:15 pm - 7:45 pm

STL

SAW

19h 30m

2 stops

9:15 am - 3:30 pm

SAW

STL

39h 15m

2 stops

$1,038Multiple Airlines

Tue, Oct 27 - Sat, Nov 7

6:04 pm - 9:00 pm

STL

SAW

18h 56m

2 stops

8:50 am - 8:39 pm

SAW

STL

19h 49m

2 stops

$1,063KLM

Wed, May 27 - Sun, Jun 7

6:04 pm - 9:00 pm

STL

SAW

18h 56m

2 stops

8:50 am - 8:39 pm

SAW

STL

19h 49m

2 stops

$1,064KLM

Thu, May 28 - Mon, Jun 8

2:40 pm - 4:45 pm

STL

SAW

18h 05m

2 stops

7:55 am - 8:07 pm

SAW

STL

20h 12m

2 stops

$1,420Multiple Airlines

Sun, Aug 16 - Thu, Aug 20

4:29 pm - 12:10 pm

STL

SAW

35h 41m

2 stops

1:40 pm - 3:29 pm

SAW

STL

34h 49m

2 stops

$1,661Qatar Airways

Wed, Sep 16 - Tue, Nov 3

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Delta flights from St. Louis to Istanbul

Our best Delta deals on St. Louis to Istanbul flight tickets

Delta

Oct 27

STL9:45 amLambert-St Louis

24h 10m

2 stops

IST5:55 pmIstanbul

Nov 11

IST7:15 amIstanbul

33h 57m

2 stops

STL8:12 amLambert-St Louis

$639

Delta

Jul 6

STL6:10 pmLambert-St Louis

25h 20m

2 stops

IST3:30 amIstanbul

Jul 17

IST4:25 amIstanbul

27h 28m

2 stops

STL11:53 pmLambert-St Louis

$684

Delta

Sep 16

STL5:45 pmLambert-St Louis

25h 45m

2 stops

IST3:30 amIstanbul

Nov 3

IST5:55 pmIstanbul

32h 11m

2 stops

STL5:06 pmLambert-St Louis

$694

Qatar Airways flights from St. Louis to Istanbul

Our best Qatar Airways deals on St. Louis to Istanbul flight tickets

Qatar Airways

Aug 24

STL9:31 amLambert-St Louis

42h 24m

2 stops

IST11:55 amIstanbul

Aug 28

IST11:40 amIstanbul

44h 19m

2 stops

STL11:59 pmLambert-St Louis

$980

Qatar Airways

May 4

STL4:30 pmLambert-St Louis

39h 00m

2 stops

IST3:30 pmIstanbul

May 17

IST11:10 amIstanbul

43h 09m

2 stops

STL10:19 pmLambert-St Louis

$1,022

Qatar Airways

May 7

STL11:06 amLambert-St Louis

36h 14m

2 stops

IST7:20 amIstanbul

May 19

IST5:00 pmIstanbul

38h 56m

2 stops

STL11:56 pmLambert-St Louis

$1,034

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

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-11:53 pm

2 stops27h 28m

$684

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-11:53 pm

2 stops27h 28m

$685

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Wed 9/16

5:45 pm-3:30 am

2 stops25h 45m

Istanbul

Tue 11/3

5:55 pm-5:06 pm

2 stops32h 11m

$694

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Mon 7/27

6:48 pm-2:05 am

2 stops23h 17m

Istanbul

Tue 8/25

5:40 am-6:56 pm

2 stops21h 16m

$823

Quickest round-trip

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Mon 7/27

3:30 pm-4:55 pm

1 stop17h 25m

Istanbul

Tue 8/25

5:40 am-5:30 pm

2 stops19h 50m

$835

St. LouisIstanbul

STL - SAW

STLSAW

Lambert-St Louis

Tue 10/27

4:15 pm-7:45 pm

2 stops19h 30m

Istanbul Sabiha Gokcen

Sat 11/7

9:15 am-3:30 pm

2 stops39h 15m

$1,038

St. LouisIstanbul

STL - SAW

STLSAW

Lambert-St Louis

Wed 5/27

6:04 pm-9:00 pm

2 stops18h 56m

Istanbul Sabiha Gokcen

Sun 6/7

8:50 am-8:39 pm

2 stops19h 49m

$1,063

St. LouisIstanbul

STL - SAW

STLSAW

Lambert-St Louis

Thu 5/28

6:04 pm-9:00 pm

2 stops18h 56m

Istanbul Sabiha Gokcen

Mon 6/8

8:50 am-8:39 pm

2 stops19h 49m

$1,064

St. LouisIstanbul

STL - SAW

STLSAW

Lambert-St Louis

Sun 8/16

2:40 pm-4:45 pm

2 stops18h 05m

Istanbul Sabiha Gokcen

Thu 8/20

7:55 am-8:07 pm

2 stops20h 12m

$1,420

St. LouisIstanbul

STL - SAW

STLSAW

Lambert-St Louis

Wed 9/16

4:29 pm-12:10 pm

2 stops35h 41m

Istanbul Sabiha Gokcen

Tue 11/3

1:40 pm-3:29 pm

2 stops34h 49m

$1,661

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

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

Prices

Airlines

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

What is the cheapest month to fly to Istanbul?

In general, December is the cheapest month to fly from St. Louis to Istanbul. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $479. If you aren’t able to travel to Istanbul during the month of December, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $545.

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

You are more likely to see cheaper flights to Istanbul from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Istanbul for around $942 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Istanbul from St. Louis for as low as $732 on momondo.

Cheap St. Louis to Istanbul flight deals and tips

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

Fastest flight time	18h 05m
Direct flights	None

The fastest flight from St. Louis to Istanbul takes 18h 05m

There are no direct flights from St. Louis to Istanbul. There are no popular flight routes from St. Louis to Istanbul.

Search flight deals

Frequently asked questions about flying from St. Louis to Istanbul

How far is Lambert-St Louis to Istanbul by plane?
There are 5728.1 mi between Lambert-St Louis and Istanbul. In terms of flight time, this usually takes a little over 18h 05m.
When did momondo last update prices for flights from Lambert-St Louis Airport to Istanbul?
Prices for flights from Lambert-St Louis Airport to Istanbul were last updated today.
How many operators does momondo search for flights from Lambert-St Louis Airport to Istanbul?
The number of operators available for flights from Lambert-St Louis Airport to Istanbul is 8 as of April 2026.
How old do you have to be to fly from Lambert-St Louis Airport to Istanbul?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Lambert-St Louis Airport to Istanbul.
What documentation or ID do you need to fly to Istanbul?
The travel and health documents you'll need for your trip to Istanbul may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Istanbul. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from St. Louis to Istanbul

Compare and see reviews for airlines that fly from St. Louis to Istanbul with momondo

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $545	Free Cancellation	Rating 7.1 11,681 reviews	Search American Airlines flights
British Airways	PriceFrom $576	Free Cancellation	Rating 6.7 7,937 reviews	Search British Airways flights
Lufthansa	PriceFrom $585	Free Cancellation	Rating 6.8 7,962 reviews	Search Lufthansa flights
KLM	PriceFrom $608	Free Cancellation	Rating 7.8 1,512 reviews	Search KLM flights
Delta	PriceFrom $613	Free Cancellation	Rating 7.9 8,464 reviews	Search Delta flights
Air Canada	PriceFrom $627	Free Cancellation	Rating 7.1 10,982 reviews	Search Air Canada flights
United Airlines	PriceFrom $633	Free Cancellation	Rating 7.4 9,677 reviews	Search United Airlines flights
Turkish Airlines	PriceFrom $866	Free Cancellation	Rating 7.4 4,346 reviews	Search Turkish Airlines flights

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from St. Louis to Istanbul. Millions of users trust and use momondo every year so you are in good hands.

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

Yes. momondo allows you to filter the results for St. Louis to Istanbul flights to just show those with flexible booking policies.

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?

Price alerts on flights to Istanbul from St. Louis are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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Cheap flights from St. Louis to Istanbul from $435

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 6/22. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Delta flights from St. Louis to Istanbul

Our best Delta deals on St. Louis to Istanbul flight tickets

Qatar Airways flights from St. Louis to Istanbul

Our best Qatar Airways deals on St. Louis to Istanbul flight tickets

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

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

What is the cheapest month to fly to Istanbul?

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

What is the cheapest airline that flies from Lambert-St Louis to Istanbul?

What airlines fly to Istanbul?

Cheap St. Louis to Istanbul flight deals and tips

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

Fastest flight time

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Frequently asked questions about flying from St. Louis to Istanbul

Best airlines flying from St. Louis to Istanbul

Compare and see reviews for airlines that fly from St. Louis to Istanbul with momondo

Why use momondo?

An easier way to manage your Istanbul 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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Turkey

Fly into one of these airports located in Istanbul

Airports listed have a maximum distance of 20.9 mi from Istanbul

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