Flight Time from Chicago (ORD) to Phuket (HKT)

The 14,448 km between ORD and HKT converts to 17.66 hours of flying under the 850 km/h + 40 min model. Model it before booking: one stop ≈ 21.2 h total, two stops ≈ 25.2 h, per the slider above.

Past the 9,000 km mark this is an ultra-long-haul sector: the 17.66 hours in the air plus cabin time makes a one-stop routing with a lounge stop worth pricing against the non-stop. The clock moves 13 h forward (UTC−6 → UTC+7), so a morning departure can land well into the local evening.

If fares into HKT spike, the airports tabulated below are the first places to check; each row shows the distance back to Phuket and the flight time from Chicago. From ORD, reaching KUL instead takes about 1.4 h — less airborne time than the 17.66 h non-stop, and the surface leg into Phuket still has to be won back.

Companion flight-time pages exist for 2 of these alternatives (KUL first among them) — see Related calculators. Ground transfer from the alternative airport back into Phuket is the catch for arrivals off the ORD service: the 641 km back-offset is time you must win back in fare savings.

Put a departure hour on the math: wheels-up at 10:00 from ORD puts you on the ground at HKT around 16:40 local time, once the 13-hour gain is applied. Daily spend shifts at landing: $88 in Phuket against $230 at home in Chicago, using the dataset's mid-range figures.

A $142 per-day gap favors staying longer in Phuket and moving on from Chicago quickly. With 13 hours gained eastbound, the 14,448 km out to Phuket ends in a serious jet-lag bill — plan a quiet first day.