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Cheap flights from Illinois to Istanbul from $330

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Istanbul departing on 11/23. 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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Cheap round-trip flights

Enter your travel dates to find the best prices.
Lufthansa Logo
3:50 pm - 6:05 pmSTL-IST
17h 15m1 stop
Lufthansa Logo
6:30 am - 1:55 pmIST-STL
16h 25m1 stop
$551Lufthansa
Find Deal
Fri, Jan 16 - Sun, Jan 25
Lufthansa Logo
3:50 pm - 6:05 pmSTL-IST
17h 15m1 stop
Lufthansa Logo
6:30 am - 12:05 amIST-STL
26h 35m2 stops
$560Lufthansa
Find Deal
Sun, Jan 18 - Mon, Feb 16
Multiple Airlines Logo
3:50 pm - 6:05 pmSTL-IST
17h 15m1 stop
Multiple Airlines Logo
6:30 am - 3:29 pmIST-STL
41h 59m2 stops
$561Multiple Airlines
Find Deal
Wed, Jan 14 - Sat, Jan 31
Multiple Airlines Logo
11:22 am - 6:05 pmSTL-IST
21h 43m2 stops
Multiple Airlines Logo
6:30 am - 3:29 pmIST-STL
41h 59m2 stops
$571Multiple Airlines
Find Deal
Wed, Jan 14 - Sat, Jan 31
United Airlines Logo
8:05 am - 6:05 pmSTL-IST
25h 00m2 stops
United Airlines Logo
6:30 am - 2:30 pmIST-STL
17h 00m2 stops
$574United Airlines
Find Deal
Sun, Feb 1 - Sun, Feb 8
British Airways Logo
1:59 pm - 5:25 pmSTL-IST
18h 26m2 stops
British Airways Logo
8:20 am - 11:38 pmIST-STL
24h 18m2 stops
$575British Airways
Find Deal
Sun, Dec 7 - Sun, Dec 14
Delta Logo
1:00 pm - 3:50 amSTL-IST
29h 50m2 stops
Delta Logo
4:50 am - 11:38 pmIST-STL
27h 48m2 stops
$586Delta
Find Deal
Wed, Feb 11 - Mon, Feb 16
British Airways Logo
1:59 pm - 5:25 pmSTL-IST
18h 26m2 stops
British Airways Logo
2:55 pm - 8:38 pmIST-STL
38h 43m2 stops
$597British Airways
Find Deal
Sat, Dec 6 - Fri, Dec 12
Delta Logo
6:35 am - 4:55 pmSTL-IST
25h 20m2 stops
Delta Logo
4:50 am - 8:45 pmIST-STL
24h 55m2 stops
$687Delta
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Fri, Jan 16 - Sat, Jan 24
United Airlines Logo
4:50 pm - 6:05 pmSTL-IST
17h 15m1 stop
United Airlines Logo
5:50 am - 9:47 pmIST-STL
23h 57m2 stops
$819United Airlines
Find Deal
Fri, Mar 27 - Tue, Mar 31

Lufthansa flights from Illinois to Istanbul Airport

Our best Lufthansa deals on Illinois to Istanbul Airport flight tickets
Lufthansa
Jan 16
STL3:50 pmLambert-St Louis
17h 15m
1 stop
IST6:05 pmIstanbul
Jan 25
IST6:30 amIstanbul
16h 25m
1 stop
STL1:55 pmLambert-St Louis
$551
Find similar
Lufthansa
Jan 18
STL3:50 pmLambert-St Louis
17h 15m
1 stop
IST6:05 pmIstanbul
Feb 16
IST6:30 amIstanbul
26h 35m
2 stops
STL12:05 amLambert-St Louis
$560
Find similar
Lufthansa
Jan 18
STL1:15 pmLambert-St Louis
24h 30m
2 stops
IST10:45 pmIstanbul
Feb 16
IST6:30 amIstanbul
26h 35m
2 stops
STL12:05 amLambert-St Louis
$564
Find similar

United Airlines flights from Illinois to Istanbul Airport

Our best United Airlines deals on Illinois to Istanbul Airport flight tickets
United Airlines
Feb 1
STL8:05 amLambert-St Louis
25h 00m
2 stops
IST6:05 pmIstanbul
Feb 8
IST6:30 amIstanbul
17h 00m
2 stops
STL2:30 pmLambert-St Louis
$574
Find similar
United Airlines
Mar 27
STL4:50 pmLambert-St Louis
17h 15m
1 stop
IST6:05 pmIstanbul
Mar 31
IST5:50 amIstanbul
23h 57m
2 stops
STL9:47 pmLambert-St Louis
$819
Find similar
United Airlines
Mar 27
MLI5:37 pmMoline Quad-City
21h 08m
2 stops
IST10:45 pmIstanbul
Mar 31
IST5:50 amIstanbul
24h 32m
2 stops
MLI10:22 pmMoline Quad-City
$824
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Illinois 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 November 10, 2025.
Use the filters below to find and compare flights from Illinois to Istanbul Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Fri 1/16

3:50 pm-6:05 pm

1 stop17h 15m

Istanbul

Sun 1/25

6:30 am-1:55 pm

1 stop16h 25m

$551

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Sun 1/18

3:50 pm-6:05 pm

1 stop17h 15m

Istanbul

Mon 2/16

6:30 am-12:05 am

2 stops26h 35m

$560

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Wed 1/14

3:50 pm-6:05 pm

1 stop17h 15m

Istanbul

Sat 1/31

6:30 am-3:29 pm

2 stops41h 59m

$561

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Wed 1/14

11:22 am-6:05 pm

2 stops21h 43m

Istanbul

Sat 1/31

6:30 am-3:29 pm

2 stops41h 59m

$571

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Sun 2/1

8:05 am-6:05 pm

2 stops25h 00m

Istanbul

Sun 2/8

6:30 am-2:30 pm

2 stops17h 00m

$574

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Sun 12/7

1:59 pm-5:25 pm

2 stops18h 26m

Istanbul

Sun 12/14

8:20 am-11:38 pm

2 stops24h 18m

$575

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Wed 2/11

1:00 pm-3:50 am

2 stops29h 50m

Istanbul

Mon 2/16

4:50 am-11:38 pm

2 stops27h 48m

$586

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Sat 12/6

1:59 pm-5:25 pm

2 stops18h 26m

Istanbul

Fri 12/12

2:55 pm-8:38 pm

2 stops38h 43m

$597

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Fri 1/16

6:35 am-4:55 pm

2 stops25h 20m

Istanbul

Sat 1/24

4:50 am-8:45 pm

2 stops24h 55m

$687

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Fri 3/27

4:50 pm-6:05 pm

1 stop17h 15m

Istanbul

Tue 3/31

5:50 am-9:47 pm

2 stops23h 57m

$819

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Istanbul from

How to get the cheapest flight ticket from Illinois 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 cheapest month to fly to Istanbul Airport?

In general, January is the cheapest month to fly from Illinois to Istanbul Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $902. If you don’t want to visit Istanbul Airport in January, then you should wait until November to fly from Illinois, when ticket prices are also cheap, with an average price of $928.

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

Our data shows that Wednesday is the least expensive day to fly to Istanbul Airport. Tickets to fly out on this day can be as low as $900. On the other hand, Friday is the most expensive day to depart from Illinois because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,006.

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

At noon is the cheapest time of day to fly from Illinois to Istanbul Airport when you can find flight prices for as low as $682. Flying to Istanbul Airport at noon is an ideal time because this is during off-peak travel hours. Flights in the afternoon are often more expensive with an average ticket price of $1,032.

What is the cheapest Illinois to Istanbul flight route?

Fly from Chicago O'Hare Intl to Istanbul for the best Illinois - Istanbul flight prices

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

You are more likely to see cheaper flights to Istanbul Airport from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Istanbul Airport for around $1,031 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Istanbul Airport from Illinois for as low as $864 on momondo.

What cabin class options are available on Illinois to Istanbul flights?

There are 3 cabin classes available to choose from on Illinois to Istanbul flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Illinois to Istanbul Airport flights?

No. A direct flight is the cheapest option for a flight between Illinois to Istanbul Airport.

Cheap Illinois to Istanbul Airport flight deals and tips

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

Best Price Found

$449

Fastest flight time

10h 20m

Direct flights

Every day
The best one-way flight to Istanbul Airport from Illinois in the past 72 hours is $449. The best round-trip flight deal from Illinois to Istanbul Airport found on momondo in the last 72 hours is $663.
The fastest flight from Illinois to Istanbul Airport takes 10h 20m
Direct flights go from Illinois to Istanbul Airport every day.
Search flight deals

  • When did momondo last update prices for flights from Illinois to Istanbul Airport?

    Prices for flights from Illinois to Istanbul Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Illinois to Istanbul Airport?

  • How old do you have to be to fly from Illinois to Istanbul Airport?

    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 Illinois 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 plane model from Illinois to Istanbul Airport?

Best airlines flying from Illinois to Istanbul Airport

Compare and see reviews for airlines that fly from Illinois to Istanbul Airport with momondo
Airline
Rating
Free Cancellation
Price
Air SerbiaPriceFrom $382Free CancellationRating
6.2
207 reviews
Search Air Serbia flights
IcelandairPriceFrom $446Free CancellationRating
7.1
578 reviews
Search Icelandair flights
Turkish AirlinesPriceFrom $659Free CancellationRating
7.3
4,041 reviews
Search Turkish Airlines flights
LOTPriceFrom $683Free CancellationRating
7.6
1,135 reviews
Search LOT flights
KLMPriceFrom $719Free CancellationRating
7.7
1,410 reviews
Search KLM flights
Etihad AirwaysPriceFrom $721Free CancellationRating
7.4
1,289 reviews
Search Etihad Airways flights
Royal JordanianPriceFrom $742Free CancellationRating
6.8
434 reviews
Search Royal Jordanian flights
LufthansaPriceFrom $780Free CancellationRating
6.8
7,565 reviews
Search Lufthansa flights
DeltaPriceFrom $781Free CancellationRating
7.9
8,006 reviews
Search Delta flights
Air CanadaPriceFrom $785Free CancellationRating
7.1
10,437 reviews
Search Air Canada 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 Illinois to Istanbul?

Finding the right flight to Istanbul from Illinois is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Istanbul quick and easy, saving you time and money.

Can I find flights from Illinois to Istanbul with flexible booking policies on momondo?

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

How can momondo help me find flights from Illinois to Istanbul?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Istanbul from Illinois.

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

Price alerts on flights to Istanbul from Illinois 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.

An easier way to manage your Istanbul Airport trip

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