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Route Reliability

SCE → Washington

SCE–IAD · 132 miles · SCE Airport to Washington Dulles International Airport

86
Pretty Reliable
WanderNerd Reliability Score
87%
Arrive within 15 minutes
5 min
Average arrival delay
1.9%
Cancelled
1,144
Flights in the data

Data through May 2026.

United Airlines is the only airline in this data on this route, arriving on time 87% of the time across 1,144 flights. No comparison to make.

What the data says

The late departure is the smart one here.

SCE–IAD flights departing between 6–9 PM arrived on time 90% of the time, versus 82% between 12–3 PM.

Wednesday comes out ahead.

A small edge: 89% on time on Wednesdays against 83% on Tuesdays.

Ticking up lately.

SCE–IAD flights arrived on time 88% of the time over the last three months in the data, compared with 83% in the three months before that.

Best historical flights

Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.

Top flights by on-time rate

More flights on this route

The breakdown

On-time by weekday
  • Mon86%(165 flights)
  • Tue83%(163 flights)
  • Wed89%(160 flights)
  • Thu86%(164 flights)
  • Fri89%(167 flights)
  • Sat87%(138 flights)
  • Sun87%(162 flights)
On-time by departure window
  • 6–9 AM89%(243 flights)
  • 9 AM–12 PM87%(343 flights)
  • 12–3 PM82%(103 flights)
  • 3–6 PM85%(256 flights)
  • 6–9 PM90%(174 flights)
On-time trend by month
82%
May

Jun 77% → May 82% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202577%78
July 202579%85
August 202592%90
September 202596%90
October 202594%97
November 202586%106
December 202578%92
January 202681%88
February 202691%77
March 202688%93
April 202695%115
May 202682%108

Keep nerding

Based on 1,144 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.