OnTimeRoutes
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Delta Air Lines SLC to BWI on-time performance

Delta Air Lines nonstop flights from Salt Lake City to Baltimore · Aug 2025 – Jul 2026

On-time arrivals
78%
arrived < 15 min late
Cancelled
1.7%
6 flights
Avg arrival delay
9 min
35 min when late
Rank on route
#2 of 2
route average 81% on time

Key facts

  • Delta Air Lines flights on SLC to BWI arrived on time 78% of the time in Aug 2025 – Jul 2026.
  • 1.7% were cancelled, and 2% arrived an hour or more late.
  • That ranks #2 of 2 airlines on this route, which averaged 81% on time overall.
  • The largest source of delay minutes was air traffic control & airport congestion (46%).

On-time trend by month

10%55%100%July 2025: 83.9% on time, 0.0% cancelledJul ’25August 2025: 93.5% on time, 0.0% cancelledAug ’25September 2025: 100.0% on time, 0.0% cancelledSep ’25October 2025: 80.0% on time, 0.0% cancelledOct ’25November 2025: 92.6% on time, 3.6% cancelledNov ’25December 2025: 53.6% on time, 3.4% cancelledDec ’25January 2026: 79.3% on time, 3.2% cancelledJan ’26February 2026: 76.9% on time, 7.1% cancelledFeb ’26March 2026: 93.5% on time, 0.0% cancelledMar ’26April 2026: 93.1% on time, 3.3% cancelledApr ’26May 2026: 22.6% on time, 0.0% cancelledMay ’26June 2026: 66.7% on time, 0.0% cancelledJun ’26July 2026: 87.1% on time, 0.0% cancelledJul ’26
On-time arrival rate by month. Hover a bar for exact figures.

Why this airline's flights were late

  • Air traffic control & airport congestion46%
  • Airline (crew, maintenance, cleaning, fueling)41%
  • Late-arriving aircraft13%
  • Extreme weather0%
  • Security0%

Other airlines on SLC to BWI

360 Delta Air Lines flights tracked on this route; 6 cancelled, 1 diverted.

Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. How we calculate this.