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

Washington, DC (DCA) to Salt Lake City, UT (SLC) flight delay odds

72.6% of 365 official scheduled DCA-to-SLC flights arrived on time; 14.8% arrived at least 30 minutes late and 0.8% 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
72.6%arrived on time
14.8%30+ min late
0.8%cancelled
365scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late9.3%all scheduled flights
120+ minutes late4.7%all scheduled flights
Diverted0.0%did not reach as scheduled
Average arrival+17.9 mincompleted flights

Which departure time was most reliable for DCA to SLC?

Only Evening met the DCA-to-SLC departure window threshold: 72.6% of 365 scheduled flights arrived on time during July 2025–June 2026.

Departure windowFlightsOn time30+ minCancelled
Evening36572.6%14.8%0.8%

Which weekday was most reliable for DCA to SLC?

Among qualifying DCA-to-SLC weekday results, Saturday had the highest on-time rate: 78.8% of 52 flights. Wednesday was lowest at 59.6% across 52 flights.

DayFlightsOn time30+ minCancelled
Monday5273.1%19.2%0.0%
Tuesday5377.4%15.1%0.0%
Wednesday5259.6%23.1%0.0%
Thursday5271.2%15.4%0.0%
Friday5273.1%9.6%0.0%
Saturday5278.8%13.5%1.9%
Sunday5275.0%7.7%3.8%

Which airline was most reliable for DCA to SLC?

Only Delta Air Lines met the DCA-to-SLC airline threshold: 72.6% of 365 scheduled flights arrived on time during July 2025–June 2026.

AirlineFlightsOn time30+ minCancelled
Delta Air Lines36572.6%14.8%0.8%

Which month was most reliable for DCA to SLC?

Among qualifying DCA-to-SLC month results, November 2025 had the highest on-time rate: 90.0% of 30 flights. January 2026 was lowest at 54.8% across 31 flights.

MonthFlightsOn time30+ minCancelled
July 20253158.1%38.7%0.0%
August 20253183.9%6.5%0.0%
September 20253076.7%13.3%0.0%
October 20253177.4%6.5%0.0%
November 20253090.0%3.3%0.0%
December 20253180.6%9.7%0.0%
January 20263154.8%22.6%3.2%
February 20262875.0%10.7%7.1%
March 20263167.7%12.9%0.0%
April 20263070.0%6.7%0.0%
May 20263177.4%12.9%0.0%
June 20263060.0%33.3%0.0%

What drove DCA to SLC delay minutes?

Late aircraft was the largest recorded DCA-to-SLC delay category, accounting for 38.8% of 7,696 BTS-attributed delay minutes during July 2025–June 2026.

Airline32.3%
Late aircraft38.8%
National airspace28.1%
Weather0.9%
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.