BWI (Baltimore) to ORD (Chicago) flights arrive on time 79% of the time. The most reliable airline on this route is Southwest Airlines at 83%. The average delay is 82 minutes. Delays on this route are most often caused by the incoming plane arriving late.
Source: Bureau of Transportation Statistics. Updated July 2026.BWI → ORD
BWI (Baltimore) to ORD (Chicago)
BWI → ORD on-time performance by month
24
25
26
JanFebMarAprMayJunJulAugSepOctNovDec
Worse
Better
This route is on time most of the time. About 79% of flights arrive on schedule.
Delays on this route are most often caused by the incoming plane arriving late.
Accurate?
Southwest Airlines is significantly more reliable on this route at 83% on time vs SkyWest Airlines at 46%.
Airline Comparison
Southwest Airlines leads at 83% on time; SkyWest Airlines trails at 46%.
Accurate?
Good to know
Departing from BWI
80% on timeTSA is currently ~12 min. Best time: 4 AM (about 5 min).
Arriving at ORD
75% on timeWhen flights into ORD are late, the average delay is 79 minutes. Build buffer if you have ground plans.
If connecting at ORD: TSA is ~16 min right now. Allow at least 60 minutes for a domestic connection.
Flight cancelled or delayed?
Check what Southwest Airlines owes you — refund rights, action plan, complaint email. Free.
Flying out of BWI? We'll brief you.
Delays, TSA, weather, gates — we'll let you know if something matters.
Know someone flying soon?
Send them the link — delay data, TSA waits, weather, all free.
Data last updated July 2026. Source: Bureau of Transportation Statistics.