Chicago to Sofia (ORD–SOF) — Airlines, Schedules & Connections

ORD Airport Page →
5,198 mi airlines charter/private
On-time Some delays Frequent delays
Connecting Flight Schedule 24 1-stop flights Verified 32m ago
No nonstop service between ORD and SOF. Nearest airports to ORD with scheduled service: Chicago Midway International Airport (MDW, 15 mi) · Gary Chicago International Airport (GYY, 36 mi) · Michigan City Municipal Airport (MGC, 59 mi)
Nonstop Charter / private 1-Stop 2-Stop Hide separate tickets Hide overnight Hide codeshares
  Flight Airline AC Dep Arr Dur OTP Sched  
✈ Nonstop

No flights match your filters.

No scheduled airline flights on this route — it's flown by charter / private operators (). No nonstop flights on this route. connecting options below.

✦ 1-Stop connections via 10 hubs
FRA Frankfurt am Main 11h 7m 3S5YAC → ETFBLH Frankfurt am Main (FRA) to Sofia flights
AMS Amsterdam 11h 10m ACAFEK → BTFB Amsterdam (AMS) to Sofia flights
CDG Paris (Roissy-en-France, Val-d'Oise) 11h 40m AAACAF → AFFB Paris (Roissy-en-France, Val-d'Oise) (CDG) to Sofia flights
ZRH Zurich 12h 2m ACLXOS → FBLX Zurich (ZRH) to Sofia flights
LHR London 12h 8m AAAYBA → BAFB London (LHR) to Sofia flights
WAW Warsaw 12h 10m B6LO → LOSKTP Warsaw (WAW) to Sofia flights
FCO Rome 12h 15m AAACAY → AZFBW6 Rome (FCO) to Sofia flights
DUB Dublin 12h 25m ACAFEI → FR Dublin (DUB) to Sofia flights
VIE Vienna 12h 35m OS → FRNHOS Vienna (VIE) to Sofia flights
MUC Munich 12h 40m ACLHUA → LHLXSQ Munich (MUC) to Sofia flights
✦ 1-STOP More options, longer trips
✧ 2-STOP Loading... Reach the hardest destinations
Chicago to Sofia
Connecting service available through multiple hubs.
5,198 mi 9h 27m nonstop +8h ahead

While no nonstop service exists between ORD and SOF, 1-stop connecting options are available.

Also explore Browse available seat maps ORD Routes SOF Routes ORD Live Flights SOF Live Flights ORD Delays
All flights from Sofia (SOF) Sofia to Chicago flights
Connections

Connection Landscape

1-stop and 2-stop options for ORD to SOF.
1-STOP
One-Stop Connections
24
Hubs
~11h
Fastest
~33h
Longest
FRA ~11h 7m AMS ~11h 10m CDG ~11h 40m ZRH ~12h 2m LHR ~12h 8m
Verified with published schedule alignment and minimum connection time.
2-STOP
Two-Stop Connections
2,246
Candidates
Two-stop connections loaded in the connections tab above.
Connections computed from published schedules with minimum connection time verification. Use the interactive explorer above the fold to filter by airline, tier, and layover time.
Reliability

On-Time Performance

What to expect at each end of your journey.
Outbound
ORD → SOF
60%
Moderate delays possible. Allow buffer time.
Departing
60%
Return
SOF → ORD
100%
Generally reliable. Most flights run on time.
Arriving
100%
OTP = percentage of flights arriving within 15 min of schedule. Based on airport-level delay snapshots. ORD delays →
Know before you go

Travel Essentials

Practical planning for this route.
Time Difference
+8h
Sofia is 8 hours ahead of Chicago.
ORD: CDT · SOF: EEST

When it's 6:00 PM in Chicago, it's 2:00 AM (next day) in Sofia.
Distance & Flight Time
5,198 mi / 8,366 km
Nonstop flight time is approximately 9h 27m gate to gate.
Visa & Entry

US passport holders enter Bulgaria visa-free for stays up to 90 days within any 180-day period. Bulgaria joined the Schengen area in 2024, so the 90-day clock is now shared with all other Schengen countries. Passport must be valid for at least 3 months beyond the planned departure from the Schengen area.

Verify entry requirements with official sources before travel.
Getting to ORD

CTA Blue Line runs 24/7 from downtown Loop stations to O'Hare (45 min, $5). Pace buses serve suburbs. Ride-shares cost $35–55 from downtown depending on traffic; add 30+ minutes during rush hour on the Kennedy Expressway.Economy parking lots E/F connect via ATS people mover. Terminal 5 (international) is separate from Terminals 1–3; allow extra time for inter-terminal transfers.

Facts

ORD–SOF Quick Facts

Key statistics for the Chicago to Sofia route.
Route details
Distance5,198 mi / 8,366 km
Flight time9h 27m
Time difference+8 hours
Airlines (nonstop)0
1-stop connectionsAvailable
Origin: ORD
Full nameChicago O'Hare International Airport
IATA / ICAOORD / KORD
TimezoneAmerica/Chicago
Passengers/yr80.0M
Elevation680 ft / 207 m
Destination: SOF
Full nameSofia Airport
IATA / ICAOSOF / LBSF
TimezoneEurope/Sofia
Passengers/yr7.9M
Elevation1,742 ft / 531 m
FAQ

Frequently Asked Questions

Common questions about ORD to SOF flights.
Nonstop flights from Chicago O'Hare International Airport to Sofia Airport take about 9h 27m gate to gate. The route covers 5,198 miles.
Yes, 1-stop connections are available, ranked by layover time. Common connecting points include Frankfurt Main, Amsterdam and Charles de Gaulle.
On a single ticket, yes. Your bags are checked through to SOF and move between planes without you. On two separate tickets you collect your bags at the connecting airport and recheck them, so build in extra layover time.
Sofia is 8 hours ahead of Chicago.
Click the 'Search Flights' button to check availability and prices on Google Flights. You can also compare airlines and schedules on this page to find the best option.
See the On-Time Performance section for the latest delay data at both airports. This shows departure and arrival reliability to help you plan.
Route data is updated regularly from official airline schedules. On-time performance data comes from recent airport delay snapshots.

Flights from ORD to SOF

Chicago O'Hare International Airport (ORD) and Sofia Airport (SOF) are connected through multiple connecting hub airports.

ORD to SOF Flight Duration and Schedule

Nonstop flight time from ORD to SOF is about 9 hours 27 minutes gate to gate. The route covers a distance of 5,198 miles (8,366 km).

Connecting Options and Alternatives

1-stop connecting options are also available, commonly via Frankfurt Main, Amsterdam and Charles de Gaulle. Two-stop connections are also available via intermediate hubs.