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

Seattle, WA (SEA) to Dallas/Fort Worth, TX (DFW) flight delay odds

75.2% of 5,233 official scheduled SEA-to-DFW flights arrived on time; 13.7% arrived at least 30 minutes late and 2.0% 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 SIGNALGenerally reliable
75.2%arrived on time
13.7%30+ min late
2.0%cancelled
5,233scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late6.7%all scheduled flights
120+ minutes late2.8%all scheduled flights
Diverted1.0%did not reach as scheduled
Average arrival+8.4 mincompleted flights

Which departure time was most reliable for SEA to DFW?

Among qualifying SEA-to-DFW departure window results, Early morning had the highest on-time rate: 87.0% of 1,262 flights. Afternoon was lowest at 69.7% across 842 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning1,26287.0%5.5%2.2%
Late morning1,36971.4%16.0%1.5%
Afternoon84269.7%18.8%1.7%
Evening97971.2%16.5%2.9%
Night78173.6%13.7%2.0%

Which weekday was most reliable for SEA to DFW?

Among qualifying SEA-to-DFW weekday results, Wednesday had the highest on-time rate: 81.8% of 720 flights. Sunday was lowest at 68.2% across 770 flights.

DayFlightsOn time30+ minCancelled
Monday78475.0%15.8%1.9%
Tuesday74678.2%11.3%1.6%
Wednesday72081.8%11.1%1.2%
Thursday75777.9%11.6%1.1%
Friday77372.1%15.0%1.9%
Saturday68373.6%14.2%3.4%
Sunday77068.2%16.5%3.2%

Which airline was most reliable for SEA to DFW?

Among qualifying SEA-to-DFW airline results, Alaska Airlines had the highest on-time rate: 77.5% of 1,755 flights. Delta Air Lines was lowest at 73.5% across 712 flights.

AirlineFlightsOn time30+ minCancelled
American Airlines2,73874.5%14.4%2.8%
Alaska Airlines1,75577.5%11.1%1.0%
Delta Air Lines71273.5%16.9%1.7%
Frontier Airlines2846.4%32.1%0.0%

Which month was most reliable for SEA to DFW?

Among qualifying SEA-to-DFW month results, February 2026 had the highest on-time rate: 87.2% of 344 flights. July 2025 was lowest at 63.6% across 505 flights.

MonthFlightsOn time30+ minCancelled
July 202550563.6%23.2%1.6%
August 202547669.7%17.2%2.7%
September 202543079.3%12.3%1.4%
October 202544281.4%10.2%0.7%
November 202541176.6%13.6%1.7%
December 202545573.8%14.5%0.7%
January 202639769.0%14.4%9.3%
February 202634487.2%6.1%0.3%
March 202638682.4%9.1%2.8%
April 202641483.6%7.0%0.7%
May 202648274.9%11.0%1.5%
June 202649167.4%20.8%1.6%

What drove SEA to DFW delay minutes?

Airline was the largest recorded SEA-to-DFW delay category, accounting for 47.3% of 89,399 BTS-attributed delay minutes during July 2025–June 2026.

Airline47.3%
Late aircraft36.4%
National airspace14.2%
Weather2.0%
Security0.1%
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.