OnTimeRoutes
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Delta Air Lines PDX to LAX on-time performance

Delta Air Lines nonstop flights from Portland to Los Angeles · Aug 2025 – Jul 2026

On-time arrivals
90%
arrived < 15 min late
Cancelled
0.9%
15 flights
Avg arrival delay
10 min
94 min when late
Rank on route
#1 of 4
route average 87% on time

Key facts

  • Delta Air Lines flights on PDX to LAX arrived on time 90% of the time in Aug 2025 – Jul 2026.
  • 0.9% were cancelled, and 4% arrived an hour or more late.
  • That ranks #1 of 4 airlines on this route, which averaged 87% on time overall.
  • The largest source of delay minutes was late-arriving aircraft (55%).

On-time trend by month

70%85%100%July 2025: 93.1% on time, 0.7% cancelledJul ’25August 2025: 86.5% on time, 2.1% cancelledAug ’25September 2025: 95.6% on time, 0.0% cancelledSep ’25October 2025: 93.8% on time, 0.0% cancelledOct ’25November 2025: 87.4% on time, 0.7% cancelledNov ’25December 2025: 90.0% on time, 0.0% cancelledDec ’25January 2026: 92.9% on time, 0.0% cancelledJan ’26February 2026: 87.9% on time, 1.6% cancelledFeb ’26March 2026: 92.5% on time, 1.3% cancelledMar ’26April 2026: 87.5% on time, 1.4% cancelledApr ’26May 2026: 90.5% on time, 0.7% cancelledMay ’26June 2026: 92.9% on time, 2.1% cancelledJun ’26July 2026: 85.7% on time, 0.7% cancelledJul ’26
On-time arrival rate by month. Hover a bar for exact figures.

Why this airline's flights were late

  • Late-arriving aircraft55%
  • Airline (crew, maintenance, cleaning, fueling)39%
  • Air traffic control & airport congestion6%
  • Extreme weather0%
  • Security0%

Other airlines on PDX to LAX

Full PDX to LAX comparison →
Delta Air Lines on-time record across all routes →

1,691 Delta Air Lines flights tracked on this route; 15 cancelled, 0 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.