Flight Time from Chicago (ORD) to Busan (PUS)

Non-stop, the ORD–PUS sector prices out at 13.22 hours — 10,667 km at 850 km/h plus 40 minutes of taxi, climb and approach. One connection is the realistic worst case for most calendars: expect the total to land near 15.7 hours with a single well-chosen hub, and near 21.7 hours with two.

At 10,667 km, crew and aircraft rotation limits start to shape schedules — expect either a genuine non-stop or a single well-placed technical stop rather than casual connections. Factor the 15-hour shift into recovery plans: eastbound arrivals at Busan generally bite harder than westbound ones.

Flexible-flier trick: price ORD against PUS and then against each nearby field below — secondary endpoints within 700 km sometimes clear the fare by a full cabin class. From ORD, reaching ICN instead takes about 1 h — less airborne time than the 13.22 h non-stop, and the surface leg into Busan still has to be won back.

Companion flight-time pages exist for 3 of these alternatives (ICN first among them) — see Related calculators. Ground transfer from the alternative airport back into Busan is the catch for arrivals off the ORD service: the 325 km back-offset is time you must win back in fare savings.

A 10:00 departure works out to roughly 14:13 on the clock in Busan — the 13.22 h airborne leg plus the UTC−6 → UTC+9 shift. Daily spend shifts at landing: $134 in Busan against $230 at home in Chicago, using the dataset's mid-range figures.

Busan undercuts Chicago by $96 a day on the dataset averages; let that shape how many nights you book at each end. With 15 hours gained eastbound, the 10,667 km out to Busan ends in a serious jet-lag bill — plan a quiet first day.