Chicago to Sofia
10h 49m The flight from Chicago O'Hare International Airport (ORD) to Sofia Airport (SOF) covers 8,366 km (5,198 miles) and takes approximately 10h 49m gate to gate for a typical jet.
The route heads north-east on an initial great-circle bearing of 45°, passing near 58.2° N, 32.7° W at its midpoint.
The route
The great-circle path — the shortest line between the two airports across the curve of the earth. On a flat map it looks bent; on a globe it is straight.
Flight time at different cruise speeds
Aircraft type, winds and routing all move the real number. This is the same distance flown at different speeds, plus the 25-minute ground and climb allowance.
| Typical of | Cruise speed | Airborne | Gate to gate |
|---|---|---|---|
| Turboprop / regional | 550 km/h | 15h 13m | 15h 38m |
| Narrowbody jet (A320, 737) | 780 km/h | 10h 44m | 11h 09m |
| Widebody jet (777, 787, A350) | 900 km/h | 9h 18m | 9h 43m |
| Private jet (Gulfstream) | 850 km/h | 9h 51m | 10h 16m |
Headwinds on an eastbound long-haul routinely add 30–60 minutes; the same route westbound can be quicker. Airlines publish schedules with padding built in.
Both airports
| ORD | SOF | |
|---|---|---|
| Airport | Chicago O'Hare International Airport | Sofia Airport |
| City | Chicago | Sofia |
| Country | United States | Bulgaria |
| ICAO | KORD | LBSF |
| Coordinates | 41.9786, -87.9048 | 42.6964, 23.4177 |
| Elevation | 680 ft | 1,742 ft |
Questions
How long is the flight from Chicago to Sofia?
A non-stop flight from Chicago (ORD) to Sofia (SOF) takes about 10h 49m. The great-circle distance is 8,366 km (5,198 miles, 4,517 nautical miles), flying north-east on an initial bearing of 45°.
How far is Chicago from Sofia?
8,366 kilometres in a straight line over the earth's surface — 5,198 miles or 4,517 nautical miles. Actual flown distance is usually 2–5% longer because aircraft follow airways, avoid weather and route around restricted airspace.
Is there a non-stop flight between ORD and SOF?
This page calculates the direct-line time and distance; it does not track airline schedules. At 8,366 km the route is comfortably within range of a non-stop service if an airline chooses to fly it. Check an airline or booking site for what is actually scheduled.
What should I expect on a 10h 49m flight?
Anything past six hours is a long-haul flight: expect at least one meal service, a significant time-zone shift, and enough sitting that circulation and hydration start to matter. Cabin altitude, dry air and disrupted sleep do more damage to a training routine than the flight itself.
Airport coordinates from OurAirports (public domain). Distance is a great-circle calculation; flight time uses the model described on the method page. Flight times are great-circle estimates for planning only — always check the airline's published schedule.