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

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

82.7% of 365 official scheduled SLC-to-DCA flights arrived on time; 7.1% 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 SIGNALLower disruption
82.7%arrived on time
7.1%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 late2.2%all scheduled flights
120+ minutes late0.5%all scheduled flights
Diverted2.2%did not reach as scheduled
Average arrival-3.3 mincompleted flights

Which departure time was most reliable for SLC to DCA?

Only Late morning met the SLC-to-DCA departure window threshold: 82.7% of 365 scheduled flights arrived on time during July 2025–June 2026.

Departure windowFlightsOn time30+ minCancelled
Late morning36582.7%7.1%0.8%

Which weekday was most reliable for SLC to DCA?

Among qualifying SLC-to-DCA weekday results, Sunday had the highest on-time rate: 90.4% of 52 flights. Thursday was lowest at 76.9% across 52 flights.

DayFlightsOn time30+ minCancelled
Monday5278.8%17.3%0.0%
Tuesday5384.9%1.9%0.0%
Wednesday5280.8%9.6%0.0%
Thursday5276.9%11.5%0.0%
Friday5280.8%7.7%0.0%
Saturday5286.5%1.9%1.9%
Sunday5290.4%0.0%3.8%

Which airline was most reliable for SLC to DCA?

Only Delta Air Lines met the SLC-to-DCA airline threshold: 82.7% of 365 scheduled flights arrived on time during July 2025–June 2026.

AirlineFlightsOn time30+ minCancelled
Delta Air Lines36582.7%7.1%0.8%

Which month was most reliable for SLC to DCA?

Among qualifying SLC-to-DCA month results, December 2025 had the highest on-time rate: 93.5% of 31 flights. January 2026 was lowest at 67.7% across 31 flights.

MonthFlightsOn time30+ minCancelled
July 20253174.2%3.2%0.0%
August 20253180.6%9.7%0.0%
September 20253083.3%3.3%0.0%
October 20253187.1%6.5%0.0%
November 20253086.7%3.3%0.0%
December 20253193.5%3.2%0.0%
January 20263167.7%16.1%3.2%
February 20262875.0%7.1%7.1%
March 20263183.9%12.9%0.0%
April 20263086.7%3.3%0.0%
May 20263193.5%3.2%0.0%
June 20263080.0%13.3%0.0%

What drove SLC to DCA delay minutes?

National airspace was the largest recorded SLC-to-DCA delay category, accounting for 46.0% of 2,200 BTS-attributed delay minutes during July 2025–June 2026.

Airline41.7%
Late aircraft11.5%
National airspace46.0%
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.