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

Miami, FL (MIA) to Dallas, TX (DAL) flight delay odds

Historically, 70.7% of scheduled reportable flights on this direction arrived on time in July 2025–June 2026. The sample includes 420 flights.

HISTORICAL ROUTE SIGNALGenerally reliable
70.7%arrived on time
17.6%30+ min late
0.7%cancelled
420scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late8.6%all scheduled flights
120+ minutes late2.6%all scheduled flights
Diverted1.0%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 morning8994.4%3.4%1.1%
Late morning11181.1%9.0%0.0%
Afternoon17361.8%20.8%0.6%
Evening4734.0%53.2%2.1%

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
Monday5284.6%3.8%1.9%
Tuesday4983.7%10.2%0.0%
Wednesday4979.6%8.2%0.0%
Thursday5375.5%13.2%0.0%
Friday5479.6%9.3%0.0%
Saturday8748.3%33.3%1.1%
Sunday7663.2%28.9%1.3%

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 Airlines42070.7%17.6%0.7%

Monthly trend

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

MonthFlightsOn time30+ minCancelled
July 20253971.8%12.8%0.0%
August 20253366.7%21.2%0.0%
September 20253080.0%0.0%0.0%
October 20252378.3%4.3%0.0%
November 20253482.4%11.8%2.9%
December 20253688.9%5.6%0.0%
January 20263366.7%18.2%3.0%
February 20262889.3%10.7%0.0%
March 20264367.4%27.9%0.0%
April 20263961.5%23.1%0.0%
May 20264158.5%22.0%2.4%
June 20264151.2%39.0%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.

Airline22.6%
Late aircraft54.1%
National airspace21.4%
Weather1.8%
Security0.0%
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.