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

Baltimore, MD (BWI) to Miami, FL (MIA) flight delay odds

Historically, 72.9% of scheduled reportable flights on this direction arrived on time in July 2025–June 2026. The sample includes 2,286 flights.

HISTORICAL ROUTE SIGNALGenerally reliable
72.9%arrived on time
15.4%30+ min late
2.1%cancelled
2,286scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late8.7%all scheduled flights
120+ minutes late3.5%all scheduled flights
Diverted0.3%did not reach as scheduled
Average arrival+10.3 mincompleted flights

When is this route most reliable?

The same route can behave differently through the day. These are scheduled departure windows, not actual departure times. Small time windows with fewer than 40 flights are withheld.

Departure windowFlightsOn time30+ minCancelled
Early morning79583.6%7.3%1.5%
Late morning28078.9%10.0%2.5%
Afternoon39267.6%18.9%2.6%
Evening80662.7%23.7%2.4%

Weekday comparison

Day-of-week results use at least 30 scheduled flights per row. Look for broad patterns, not tiny percentage differences.

DayFlightsOn time30+ minCancelled
Monday32673.6%11.7%4.0%
Tuesday29079.3%11.7%0.3%
Wednesday28077.9%13.2%1.1%
Thursday32275.8%14.3%0.9%
Friday33070.9%16.4%1.5%
Saturday38872.2%17.3%1.8%
Sunday35063.1%21.7%4.6%

Airline comparison

Marketing-carrier results make codeshare flights easier to compare as travelers buy them. Dedicated route-airline reports require at least 160 flights.

AirlineFlightsOn time30+ minCancelled
Southwest Airlines1,18170.9%15.7%1.9%
American Airlines68978.1%12.6%2.3%
Frontier Airlines26566.8%22.3%3.4%
Envoy Air11481.6%10.5%0.0%
Spirit Airlines3759.5%21.6%2.7%

Monthly trend

Month-by-month results show whether a twelve-month average hides an unusual period.

MonthFlightsOn time30+ minCancelled
July 202518956.6%30.2%4.8%
August 202519766.0%22.8%0.5%
September 202515589.0%2.6%0.0%
October 202517882.0%11.8%0.6%
November 202518375.4%12.6%3.3%
December 202521867.4%17.0%1.8%
January 202621371.4%14.6%6.1%
February 202618373.2%14.2%3.3%
March 202618072.8%12.8%3.3%
April 202620779.2%10.1%0.5%
May 202620476.5%13.2%0.5%
June 202617969.3%20.7%0.0%

What drove reported delay minutes?

BTS cause minutes are reported for qualifying delayed flights. These shares describe recorded delay minutes—not the chance that a particular cause will affect your next flight.

Airline29.0%
Late aircraft39.4%
National airspace24.0%
Weather7.2%
Security0.4%
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.