Skip to content
WanderNerd
Check a flight

Route Reliability

Las Vegas → Washington

LAS–DCA · 2,089 miles · Harry Reid International Airport to Ronald Reagan Washington National Airport

74
Usually Fine
WanderNerd Reliability Score
76%
Arrive within 15 minutes
8 min
Average arrival delay
1.0%
Cancelled
730
Flights in the data

Data through May 2026.

Who flies it best

Ranked by on-time arrivals. Historical results, not predictions.

  1. 1.American Airlines79%365 flights
  2. 2.Southwest Airlines73%365 flights

What the data says

The 6–9 AM departure wins.

LAS–DCA flights departing between 6–9 AM arrived on time 83% of the time, versus 71% between 9 AM–12 PM.

Wednesdays have been rough.

LAS–DCA flights arrived on time 89% of the time on Saturdays and just 67% on Wednesdays. That gap is worth planning around.

American Airlines has a slight edge here.

American Airlines arrived on time 79% of the time on this route; Southwest Airlines managed 73%.

Flights on this route

The breakdown

On-time by weekday
  • Mon74%(100 flights)
  • Tue74%(102 flights)
  • Wed67%(103 flights)
  • Thu75%(103 flights)
  • Fri72%(100 flights)
  • Sat89%(103 flights)
  • Sun79%(102 flights)
On-time by departure window
  • 6–9 AM83%(87 flights)
  • 9 AM–12 PM71%(301 flights)
  • 12–3 PM79%(325 flights)
On-time trend by month
77%
May

Jun 69% → May 77% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202569%58
July 202560%58
August 202583%60
September 202570%60
October 202568%62
November 202578%59
December 202581%62
January 202683%57
February 202675%55
March 202675%60
April 202690%60
May 202677%62

Same trip, other airports

Keep nerding

Based on 730 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.