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

Qatar Airways and Turkish Airlines are the most popular carriers operating from Lambert-St Louis to Istanbul

What airlines fly to Istanbul?

Lufthansa, Turkish Airlines and British Airways 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 45% of people opting to fly with this airline when traveling to Istanbul. Keep in mind that there are 7 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 7 as of July 2025.

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.

$352 Cheap Flights from St. Louis to Istanbul in 2025

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

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

Trusted and free

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

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from St. Louis to Istanbul

Round-trip

One-way

Last minute

Cheap round-trip flights

6:30 pm - 12:25 amSTL-IST

44h 55m2 stops

7:35 am - 9:49 pmIST-STL

23h 14m2 stops

$644British Airways

Find Deal

Tue, Dec 23 - Tue, Jan 20

6:43 pm - 10:45 pmSTL-IST

44h 02m2 stops

1:50 pm - 3:29 pmIST-STL

58h 39m2 stops

$646

Find Deal

Sat, Nov 1 - Mon, Nov 10

3:29 pm - 4:55 pmSTL-IST

16h 26m2 stops

4:50 am - 6:04 pmIST-STL

22h 14m2 stops

$669KLM

Find Deal

Tue, Dec 23 - Mon, Jan 19

2:15 pm - 3:25 amSTL-IST

29h 10m2 stops

5:05 pm - 4:35 pmIST-STL

31h 30m2 stops

$739Delta

Find Deal

Tue, Aug 12 - Wed, Aug 20

5:45 pm - 3:25 amSTL-IST

25h 40m2 stops

5:05 pm - 7:01 pmIST-STL

33h 56m2 stops

$789Delta

Find Deal

Sat, Aug 9 - Mon, Aug 25

12:15 pm - 4:20 pmSTL-IST

20h 05m2 stops

6:10 am - 4:40 pmIST-STL

18h 30m2 stops

$885KLM

Find Deal

Sun, Sep 28 - Wed, Oct 22

1:30 pm - 2:50 pmSTL-IST

17h 20m2 stops

7:15 am - 3:18 pmIST-STL

40h 03m2 stops

$896Air Canada

Find Deal

Sun, Sep 28 - Thu, Oct 23

5:28 pm - 9:20 pmSTL-IST

19h 52m2 stops

2:00 pm - 3:44 pmIST-STL

33h 44m2 stops

$900Lufthansa

Find Deal

Tue, Sep 30 - Wed, Oct 22

11:39 am - 9:20 pmSTL-IST

25h 41m2 stops

2:00 pm - 1:30 pmIST-STL

31h 30m1 stop

$904Lufthansa

Find Deal

Mon, Sep 29 - Tue, Oct 21

1:30 pm - 4:15 amSTL-IST

30h 45m2 stops

7:15 am - 7:38 pmIST-STL

20h 23m2 stops

$918Air Canada

Find Deal

Wed, Oct 1 - Fri, Oct 24

British Airways flights from St. Louis to Istanbul

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

British Airways

Dec 23

STL6:30 pmLambert-St Louis

44h 55m

2 stops

IST12:25 amIstanbul

Jan 20

IST7:35 amIstanbul

23h 14m

2 stops

STL9:49 pmLambert-St Louis

$644

Find similar

British Airways

Dec 23

STL5:57 pmLambert-St Louis

45h 28m

2 stops

IST12:25 amIstanbul

Jan 20

IST7:35 amIstanbul

23h 14m

2 stops

STL9:49 pmLambert-St Louis

$657

Find similar

British Airways

Aug 9

STL7:44 pmLambert-St Louis

39h 31m

2 stops

IST7:15 pmIstanbul

Aug 16

IST7:50 pmIstanbul

27h 59m

2 stops

STL3:49 pmLambert-St Louis

$845

Find similar

KLM flights from St. Louis to Istanbul

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

KLM

Dec 23

STL3:29 pmLambert-St Louis

16h 26m

2 stops

IST4:55 pmIstanbul

Jan 19

IST4:50 amIstanbul

22h 14m

2 stops

STL6:04 pmLambert-St Louis

$669

Find similar

KLM

Sep 28

STL12:15 pmLambert-St Louis

20h 05m

2 stops

IST4:20 pmIstanbul

Oct 22

IST6:10 amIstanbul

18h 30m

2 stops

STL4:40 pmLambert-St Louis

$885

Find similar

KLM

Sep 27

STL12:15 pmLambert-St Louis

20h 05m

2 stops

IST4:20 pmIstanbul

Oct 22

IST6:10 amIstanbul

18h 30m

2 stops

STL4:40 pmLambert-St Louis

$907

Find similar

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 cheapest month to fly to Istanbul?

In general, October 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 $902. If you aren’t able to travel to Istanbul during the month of October, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $941.

What is the cheapest day to depart on your flight to Istanbul?

The cheapest day to depart from St. Louis to Istanbul is on a Wednesday when prices can be found for as low as $1,050. Be sure to avoid booking your departure on a Monday as prices are generally higher than usual. According to our data, the average ticket price to Istanbul on Monday is $1,257.

What is the cheapest time of day to depart on your flight to Istanbul?

Our most recent data shows that the best time of day to fly to Istanbul is at noon. Flights from St. Louis to Istanbul during this time can be as low as $1,116. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $1,190 on average. Flights to Istanbul from St. Louis in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

How far in advance should I book a flight 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 $1,100 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 $850 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

Best Price Found	$352
Fastest flight time	16h 10m
Direct flights	None
Airports in Istanbul	2 airports

The best one-way flight to Istanbul from St. Louis in the past 72 hours is $352. The best round-trip flight deal from St. Louis to Istanbul found on momondo in the last 72 hours is $644.

The fastest flight from St. Louis to Istanbul takes 16h 10m

There are no direct flights from St. Louis to Istanbul. Popular non-direct routes for this connection are Lambert-St Louis Airport - Istanbul Sabiha Gokcen Airport and Lambert-St Louis Airport - Istanbul Airport.

There are 2 airports near Istanbul: Istanbul Sabiha Gokcen (SAW), Istanbul (IST)

Search flight deals

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 16h 10m.
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 7 as of July 2025.
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
Air Canada	PriceFrom $627	Free Cancellation	Rating 7.1 9,725 reviews	Search Air Canada flights
British Airways	PriceFrom $662	Free Cancellation	Rating 6.6 7,134 reviews	Search British Airways flights
American Airlines	PriceFrom $674	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
Delta	PriceFrom $680	Free Cancellation	Rating 8.0 7,956 reviews	Search Delta flights
Lufthansa	PriceFrom $735	Free Cancellation	Rating 6.8 7,208 reviews	Search Lufthansa flights
United Airlines	PriceFrom $762	Free Cancellation	Rating 7.4 8,858 reviews	Search United Airlines flights
Turkish Airlines	PriceFrom $1,162	Free Cancellation	Rating 7.3 3,901 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.