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Cheap flights from Illinois to Istanbul from $316

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 10/6. 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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0 bags

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Find the cheapest flights from Illinois to Istanbul

Cheap round-trip flights

Lufthansa Logo
3:50 pm - 10:45 pmSTL-IST
21h 55m1 stop
Lufthansa Logo
6:30 am - 1:55 pmIST-STL
16h 25m1 stop
$582Lufthansa
Find Deal
Wed, Nov 5 - Wed, Nov 19
Lufthansa Logo
1:10 pm - 10:45 pmSTL-IST
24h 35m2 stops
Lufthansa Logo
6:30 am - 1:55 pmIST-STL
16h 25m1 stop
$602Lufthansa
Find Deal
Wed, Nov 5 - Wed, Nov 19
Air Canada Logo
4:05 pm - 8:10 pmSTL-IST
19h 05m2 stops
Air Canada Logo
3:10 pm - 3:29 pmIST-STL
33h 19m2 stops
$613Air Canada
Find Deal
Tue, Nov 25 - Fri, Dec 5
Lufthansa Logo
3:50 pm - 10:45 pmSTL-IST
21h 55m1 stop
Lufthansa Logo
6:30 am - 1:55 pmIST-STL
16h 25m1 stop
$615Lufthansa
Find Deal
Wed, Nov 5 - Wed, Nov 12
United Airlines Logo
1:35 pm - 5:45 pmSTL-IST
19h 10m2 stops
United Airlines Logo
6:30 am - 1:55 pmIST-STL
16h 25m1 stop
$616United Airlines
Find Deal
Tue, Nov 25 - Fri, Dec 5
American Airlines Logo
7:54 pm - 12:50 amSTL-IST
20h 56m2 stops
American Airlines Logo
7:35 am - 11:07 pmIST-STL
24h 32m2 stops
$625American Airlines
Find Deal
Sun, Oct 26 - Tue, Nov 11
Multiple Airlines Logo
4:50 pm - 10:45 pmSTL-IST
21h 55m1 stop
Multiple Airlines Logo
9:25 pm - 3:29 pmIST-STL
51h 04m2 stops
$631Multiple Airlines
Find Deal
Sun, Oct 26 - Tue, Nov 11
Multiple Airlines Logo
7:00 am - 5:45 pmSTL-IST
25h 45m2 stops
Multiple Airlines Logo
9:25 pm - 3:29 pmIST-STL
51h 04m2 stops
$636Multiple Airlines
Find Deal
Tue, Nov 25 - Tue, Dec 2
Air Canada Logo
4:05 pm - 12:35 amSTL-IST
23h 30m2 stops
Air Canada Logo
9:25 pm - 3:29 pmIST-STL
51h 04m2 stops
$638Air Canada
Find Deal
Sun, Jan 18 - Mon, Feb 16
United Airlines Logo
1:35 pm - 6:05 pmSTL-IST
19h 30m2 stops
United Airlines Logo
6:30 am - 6:47 pmIST-STL
21h 17m2 stops
$640United Airlines
Find Deal
Wed, Nov 5 - Wed, Nov 12

Air Canada flights from Illinois to Istanbul Airport

Our best Air Canada deals on Illinois to Istanbul Airport flight tickets
Air Canada
Nov 25
STL4:05 pmLambert-St Louis
19h 05m
2 stops
IST8:10 pmIstanbul
Dec 5
IST3:10 pmIstanbul
33h 19m
2 stops
STL3:29 pmLambert-St Louis
$613
Find similar
Air Canada
Jan 18
STL4:05 pmLambert-St Louis
23h 30m
2 stops
IST12:35 amIstanbul
Feb 16
IST9:25 pmIstanbul
51h 04m
2 stops
STL3:29 pmLambert-St Louis
$638
Find similar
Air Canada
Nov 27
STL4:05 pmLambert-St Louis
19h 05m
2 stops
IST8:10 pmIstanbul
Dec 5
IST1:40 pmIstanbul
34h 49m
2 stops
STL3:29 pmLambert-St Louis
$663
Find similar

United Airlines flights from Illinois to Istanbul Airport

Our best United Airlines deals on Illinois to Istanbul Airport flight tickets
United Airlines
Nov 25
STL1:35 pmLambert-St Louis
19h 10m
2 stops
IST5:45 pmIstanbul
Dec 5
IST6:30 amIstanbul
16h 25m
1 stop
STL1:55 pmLambert-St Louis
$616
Find similar
United Airlines
Nov 5
STL1:35 pmLambert-St Louis
19h 30m
2 stops
IST6:05 pmIstanbul
Nov 12
IST6:30 amIstanbul
21h 17m
2 stops
STL6:47 pmLambert-St Louis
$640
Find similar
United Airlines
Jan 18
STL3:50 pmLambert-St Louis
17h 15m
1 stop
IST6:05 pmIstanbul
Feb 16
IST6:30 amIstanbul
41h 59m
2 stops
STL3:29 pmLambert-St Louis
$682
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 September 25, 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

Wed 11/5

3:50 pm-10:45 pm

1 stop21h 55m

Istanbul

Wed 11/19

6:30 am-1:55 pm

1 stop16h 25m

$582

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Wed 11/5

1:10 pm-10:45 pm

2 stops24h 35m

Istanbul

Wed 11/19

6:30 am-1:55 pm

1 stop16h 25m

$602

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Tue 11/25

4:05 pm-8:10 pm

2 stops19h 05m

Istanbul

Fri 12/5

3:10 pm-3:29 pm

2 stops33h 19m

$613

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Wed 11/5

3:50 pm-10:45 pm

1 stop21h 55m

Istanbul

Wed 11/12

6:30 am-1:55 pm

1 stop16h 25m

$615

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Tue 11/25

1:35 pm-5:45 pm

2 stops19h 10m

Istanbul

Fri 12/5

6:30 am-1:55 pm

1 stop16h 25m

$616

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Sun 10/26

7:54 pm-12:50 am

2 stops20h 56m

Istanbul

Tue 11/11

7:35 am-11:07 pm

2 stops24h 32m

$625

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Sun 10/26

4:50 pm-10:45 pm

1 stop21h 55m

Istanbul

Tue 11/11

9:25 pm-3:29 pm

2 stops51h 04m

$631

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Tue 11/25

7:00 am-5:45 pm

2 stops25h 45m

Istanbul

Tue 12/2

9:25 pm-3:29 pm

2 stops51h 04m

$636

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Sun 1/18

4:05 pm-12:35 am

2 stops23h 30m

Istanbul

Mon 2/16

9:25 pm-3:29 pm

2 stops51h 04m

$638

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Wed 11/5

1:35 pm-6:05 pm

2 stops19h 30m

Istanbul

Wed 11/12

6:30 am-6:47 pm

2 stops21h 17m

$640

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 $926. 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 $926.

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 $1,002.

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 $1,040 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 $890 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

$395

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 $395. The best round-trip flight deal from Illinois to Istanbul Airport found on momondo in the last 72 hours is $726.
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
6.3
199 reviews
Search Air Serbia flights
IcelandairPriceFrom $517Free CancellationRating
7.0
545 reviews
Search Icelandair flights
Turkish AirlinesPriceFrom $632Free CancellationRating
7.3
3,976 reviews
Search Turkish Airlines flights
DeltaPriceFrom $653Free CancellationRating
7.9
7,973 reviews
Search Delta flights
British AirwaysPriceFrom $654Free CancellationRating
6.7
7,399 reviews
Search British Airways flights
LOTPriceFrom $683Free CancellationRating
7.6
1,118 reviews
Search LOT flights
American AirlinesPriceFrom $700Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
Etihad AirwaysPriceFrom $721Free CancellationRating
7.4
1,260 reviews
Search Etihad Airways flights
Royal JordanianPriceFrom $747Free CancellationRating
6.8
426 reviews
Search Royal Jordanian flights
KLMPriceFrom $753Free CancellationRating
7.8
1,391 reviews
Search KLM 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.

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