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

Boston, MA (BOS) to Dallas, TX (DAL) flight delay odds

52.7% of 260 official scheduled BOS-to-DAL flights arrived on time; 33.8% arrived at least 30 minutes late and 0.0% 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 SIGNALHigher disruption
52.7%arrived on time
33.8%30+ min late
0.0%cancelled
260scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late17.3%all scheduled flights
120+ minutes late5.4%all scheduled flights
Diverted0.8%did not reach as scheduled
Average arrival+26.5 mincompleted flights

Which departure time was most reliable for BOS to DAL?

Among qualifying BOS-to-DAL departure window results, Afternoon had the highest on-time rate: 57.4% of 136 flights. Evening was lowest at 31.5% across 92 flights.

Departure windowFlightsOn time30+ minCancelled
Afternoon13657.4%30.1%0.0%
Evening9231.5%48.9%0.0%

Which weekday was most reliable for BOS to DAL?

Among qualifying BOS-to-DAL weekday results, Saturday had the highest on-time rate: 67.5% of 40 flights. Thursday was lowest at 47.4% across 38 flights.

DayFlightsOn time30+ minCancelled
Monday4050.0%35.0%0.0%
Thursday3847.4%42.1%0.0%
Friday4365.1%23.3%0.0%
Saturday4067.5%17.5%0.0%
Sunday4450.0%40.9%0.0%

Which airline was most reliable for BOS to DAL?

Only Southwest Airlines met the BOS-to-DAL airline threshold: 52.7% of 260 scheduled flights arrived on time during July 2025–June 2026.

AirlineFlightsOn time30+ minCancelled
Southwest Airlines26052.7%33.8%0.0%

Which month was most reliable for BOS to DAL?

Among qualifying BOS-to-DAL month results, December 2025 had the highest on-time rate: 86.7% of 15 flights. September 2025 was lowest at 28.6% across 21 flights.

MonthFlightsOn time30+ minCancelled
July 20253167.7%12.9%0.0%
August 20252365.2%21.7%0.0%
September 20252128.6%57.1%0.0%
October 20253056.7%30.0%0.0%
November 20251883.3%16.7%0.0%
December 20251586.7%6.7%0.0%
March 20262737.0%44.4%0.0%
April 20263043.3%43.3%0.0%
May 20263138.7%45.2%0.0%
June 20263036.7%50.0%0.0%

What drove BOS to DAL delay minutes?

Late aircraft was the largest recorded BOS-to-DAL delay category, accounting for 58.2% of 7,762 BTS-attributed delay minutes during July 2025–June 2026.

Airline20.2%
Late aircraft58.2%
National airspace18.4%
Weather3.3%
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.