BWI (Baltimore) to SAN (San Diego) flights arrive on time 75% of the time. The most reliable airline on this route is Spirit Airlines at 85%. The average delay is 51 minutes. Delays on this route are most often caused by the airline (crew, maintenance, or boarding).
Source: Bureau of Transportation Statistics. Updated October 2026.BWI → SAN
BWI (Baltimore) to SAN (San Diego)
BWI → SAN on-time performance by month
24
25
26
JanFebMarAprMayJunJulAugSepOctNovDec
Worse
Better
This route is delayed fairly often. About 75% of flights arrive on schedule.
Delays on this route are most often caused by the airline (crew, maintenance, or boarding).
Accurate?
Spirit Airlines edges out Southwest Airlines on this route — 85% vs 75% on time.
Airline Comparison
Spirit Airlines leads at 85% on time; Southwest Airlines trails at 75%.
Accurate?
Good to know
Departing from BWI
79% on timeTSA is currently ~14 min. Best time: 4 AM (about 5 min).
Arriving at SAN
78% on timeWhen flights into SAN are late, the average delay is 60 minutes. Build buffer if you have ground plans.
If connecting at SAN: TSA is ~17 min right now. Allow at least 60 minutes for a domestic connection.
Flight cancelled or delayed?
Check what Spirit 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.
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Data last updated October 2026. Source: Bureau of Transportation Statistics.