Business class fares › From Chicago › Istanbul

Chicago to Istanbul business class (CHI–IST)

The cheapest round-trip business class fare from Chicago to Istanbul seen on Aviasales in recent days is €3,527 ($3,898), departing 5 Dec 2026 and returning 12 Dec 2026, 2 stops, sold by Т-Банк (seen 13 Nov 2026, checked 14 Nov 2026). €3,527 is 14% below this route's 11-day average of €4,082 (range €3,527–€5,363 since 2026-10-25). Search these dates: https://flat.flights/go/chicago-to-istanbul/?d=2026-12-05&r=2026-12-12

Business class fares found (14 Nov 2026)

Round trip	USD	Outbound	Return	Stops	Sold by	Book
€3,527	$3,898	5 Dec 2026	12 Dec 2026	2 stops	Т-Банк	1 adult · 2 adults

One adult, business cabin, as last seen by Aviasales users; price and availability change. The live search shows today's fares for other dates.

Price data: Chicago to Istanbul business class

Cheapest round trip now: €3,527 ($3,898)
Is it a good price? €3,527 is 14% below this route's 11-day average of €4,082 (range €3,527–€5,363 since 2026-10-25).
Cheapest departure month seen in the next 6 months: December 2026 (from €3,527, $3,898)
Over the last 11 days (since 25 Oct 2026) the cheapest daily fare averaged €4,082, ranging €3,527–€5,363.
Great-circle distance: 8,813 km (5,477 miles)

First class, nonstop, one way & cabin options: Chicago to Istanbul

No nonstop business class round trip departing in the next 6 months was seen.
Cheapest one-way Business seen: €1,773 ($1,960), departing 15 Jan 2027, 2 stops (seen 10 Nov 2026). Search one-way Business
Budget-premium alternative: Compare Premium Economy on Chicago to Istanbul
Nonstop flights seen in recent searches include (checked 11 Nov 2026; any cabin, a sample, not the full schedule; numbers joined by "/" are one flight sold by several airlines): Turkish Airlines TK 6 (ORD–IST); Turkish Airlines TK 186 (ORD–IST).
Lie-flat business seat: Likely. Nonstop flights seen include ones sold only by airlines whose long-haul business class has lie-flat seats (Turkish Airlines); connecting itineraries depend on the airlines used.

Route facts

From: Chicago, United States (airports: DPA, MDW, ORD, PWK, RFD)
To: Istanbul, Turkiye (airports: IST, SAW)
Fares cover every airport of both cities; the live search lets you pick a specific airport.

Book

Search Chicago to Istanbul business class (1 adult) · Search for 2 adults · Premium Economy

Link to share: https://flat.flights/go/chicago-to-istanbul/

Arrival & stay in Istanbul

Hotels in Istanbul (2026-12-05 → 2026-12-12): Compare 5-star & business hotels
Airport transfer in Istanbul: Book private airport pickup
Mobile data in Turkiye: Turkiye travel eSIM (instant activation)

FAQ

How much is business class from Chicago to Istanbul?

When is business class from Chicago to Istanbul cheapest?

Among departures in the next 6 months seen in recent searches, the cheapest month is December 2026, from €3,527 ($3,898) round trip.

Is there a nonstop business class fare from Chicago to Istanbul?

None of the cheapest business class fares seen recently is nonstop; the cheapest options have 2 stops. Nonstop flights may exist at higher prices.