DAL (Dallas) to BUF (Buffalo) flights arrive on time 90% of the time. The most reliable airline on this route is Southwest Airlines at 90%. The average delay is 16 minutes. Delays on this route are most often caused by air traffic and busy airspace.
Source: Bureau of Transportation Statistics. Updated July 2026.DAL → BUF
DAL (Dallas) to BUF (Buffalo)
DAL → BUF on-time performance by month
25
JanFebMarAprMayJunJulAugSepOctNovDec
Worse
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This route is usually on time. About 90% of flights arrive on schedule.
Delays on this route are most often caused by air traffic and busy airspace.
Accurate?
Accurate?
Good to know
Departing from DAL
79% on timeTSA is currently ~13 min. Best time: 4 AM (about 5 min).
Arriving at BUF
77% on timeWhen flights into BUF are late, the average delay is 72 minutes. Build buffer if you have ground plans.
If connecting at BUF: TSA is ~5 min right now. Allow at least 60 minutes for a domestic connection.
BUF has a 2.1% cancellation rate — keep the airline app handy for rebooking.
Flight cancelled or delayed?
Check what Southwest Airlines owes you — refund rights, action plan, complaint email. Free.
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Delay odds & gate info
TSA wait & weather
48-hour conditions check
When-to-leave timeline
Post-landing trip report
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Data last updated July 2026. Source: Bureau of Transportation Statistics.