✈ ORD → SIN
18H 40M IN ECONOMY = A FELONY AGAINST YOURSELF. UPGRADE.
Flight from Chicago to Singapore
From O'Hare (ORD), USA North America → Changi (SIN), Singapore Asia
How long is the flight from Chicago to Singapore?
A nonstop flight from Chicago (ORD) to Singapore (SIN) takes about 18 hours 40 minutes, covering a great-circle distance of 9,352 miles (15,050 km). Actual scheduled time varies by airline, routing, and wind — expect ±15 to 30 minutes from this estimate.
Avg flight time
18h 40m
Nonstop, scheduled
Distance
9,352 mi
15,050 km · great-circle
Avg speed
806 km/h
Door-to-door including taxi
Time zones & jet lag
Chicago timezone
UTC-5
America/Chicago
Singapore timezone
UTC+8
Asia/Singapore
Time difference
+13h
13 hours ahead
Jet lag (rough)
~13d
Eastward — worse
CO₂ footprint per passenger
Economy class, single passenger. Source: DEFRA 2024 averages.
This flight emits roughly 3.6× the CO₂ of an equivalent train trip and 0.9× a car driven alone over the same distance.