Cosmic radiation on flights from Chicago (ORD)

Chicago O'Hare International Airport, Chicago, United States. ICAO KORD, at 41.98°, -87.9°. FlightDose publishes 2 routes from here and 2 to here, each direction on its own page.

Of the 2 published routes from ORD, the flight to New York (ORD → LGA) receives the least, about 4.87 µSv for a standard flight, and the flight to London (ORD → LHR) the most, about 31.2 µSv. A route's dose depends mostly on its hours in the air and how far it runs from the equator (why latitude matters).

Updated 4 October 2026

Routes from ORD

ORD → LGANew York, 1 h 35 min4.87 µSv
ORD → LHRLondon, 7 h 11 min31.2 µSv

Routes to ORD

LGA → ORDNew York, 1 h 49 min5.93 µSv
LHR → ORDLondon, 8 h 14 min36.2 µSv

Standard flight: 35,000 ft, estimated time in the air, solar conditions of August 2026; CARI-7.

Routes from ORD, shaded by modelled dose rate. Select a route to open its page.

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