BTS DATA COMPLETE THROUGH JUNE 2026HISTORICAL ODDS · NOT LIVE FLIGHT STATUS
DelayOddsKnow the route before you book
BWI→SAT

Baltimore, MD (BWI) to San Antonio, TX (SAT) flight delay odds

75.7% of 736 official scheduled BWI-to-SAT flights arrived on time; 14.4% arrived at least 30 minutes late and 1.4% were cancelled during July 2025–June 2026.

Source: U.S. Bureau of Transportation Statistics · Reporting window: July 2025–June 2026 · Updated September 16, 2026

HISTORICAL ROUTE SIGNALGenerally reliable
75.7%arrived on time
14.4%30+ min late
1.4%cancelled
736scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late7.5%all scheduled flights
120+ minutes late2.6%all scheduled flights
Diverted0.1%did not reach as scheduled
Average arrival+5.6 mincompleted flights

Which departure time was most reliable for BWI to SAT?

Among qualifying BWI-to-SAT departure window results, Early morning had the highest on-time rate: 90.8% of 141 flights. Evening was lowest at 66.4% across 289 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning14190.8%4.3%1.4%
Late morning14785.7%6.8%1.4%
Afternoon13372.9%18.8%0.0%
Evening28966.4%19.7%2.1%

Which weekday was most reliable for BWI to SAT?

Among qualifying BWI-to-SAT weekday results, Tuesday had the highest on-time rate: 83.5% of 109 flights. Saturday was lowest at 66.7% across 72 flights.

DayFlightsOn time30+ minCancelled
Monday12276.2%12.3%1.6%
Tuesday10983.5%9.2%0.0%
Wednesday10477.9%11.5%1.9%
Thursday11976.5%14.3%0.8%
Friday12275.4%17.2%0.8%
Saturday7266.7%25.0%1.4%
Sunday8869.3%14.8%3.4%

Which airline was most reliable for BWI to SAT?

Only Southwest Airlines met the BWI-to-SAT airline threshold: 75.6% of 735 scheduled flights arrived on time during July 2025–June 2026.

AirlineFlightsOn time30+ minCancelled
Southwest Airlines73575.6%14.4%1.4%
Spirit Airlines1100.0%0.0%0.0%

Which month was most reliable for BWI to SAT?

Among qualifying BWI-to-SAT month results, November 2025 had the highest on-time rate: 86.9% of 61 flights. June 2026 was lowest at 54.7% across 75 flights.

MonthFlightsOn time30+ minCancelled
July 20258572.9%21.2%2.4%
August 20257183.1%8.5%1.4%
September 20256985.5%13.0%0.0%
October 20257580.0%10.7%0.0%
November 20256186.9%6.6%0.0%
December 20257174.6%15.5%1.4%
January 20263971.8%15.4%5.1%
February 20263582.9%0.0%8.6%
March 20265182.4%11.8%0.0%
April 20265276.9%11.5%0.0%
May 20265259.6%23.1%0.0%
June 20267554.7%26.7%1.3%

What drove BWI to SAT delay minutes?

Late aircraft was the largest recorded BWI-to-SAT delay category, accounting for 45.9% of 9,612 BTS-attributed delay minutes during July 2025–June 2026.

Airline32.7%
Late aircraft45.9%
National airspace16.7%
Weather4.2%
Security0.6%
This is historical evidence, not a forecast.

Weather, schedules and operations change. For a trip you have already booked, use the airline or airport for live status.