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WanderNerd

Route Reliability

Baltimore → Las Vegas

BWILAS · 2,106 miles · Baltimore/Washington International Thurgood Marshall Airport to Harry Reid International Airport

83
Pretty Reliable
WanderNerd Reliability Score
81%
Arrive within 15 minutes
3 min
Average arrival delay
1.1%
Cancelled
1,846
Flights in the data

Data through May 2026.

Who flies it best

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

  1. 1.Spirit Airlines88%211 flights
  2. 2.Southwest Airlines80%1,635 flights

What the data says

Morning-you made the right choice.

BWI–LAS flights departing between 6–9 AM arrived on time 93% of the time, versus 63% between 9 PM–12 AM.

Saturday has been the better bet.

A small edge: 83% on time on Saturdays against 78% on Sundays.

Spirit Airlines runs this route best.

Spirit Airlines arrived on time 88% of the time on this route; Southwest Airlines managed 80%.

Ticking up lately.

BWI–LAS flights arrived on time 81% of the time over the last three months in the data, compared with 78% in the three months before that.

Flights on this route

The breakdown

On-time by weekday
  • Mon81%(267 flights)
  • Tue83%(259 flights)
  • Wed83%(268 flights)
  • Thu79%(265 flights)
  • Fri79%(265 flights)
  • Sat83%(220 flights)
  • Sun78%(273 flights)
On-time by departure window
  • 3–6 AM(6 flights)
  • 6–9 AM93%(605 flights)
  • 9 AM–12 PM87%(223 flights)
  • 12–3 PM74%(245 flights)
  • 3–6 PM72%(278 flights)
  • 6–9 PM72%(395 flights)
  • 9 PM–12 AM63%(65 flights)
On-time trend by month
86%
May

Jun 78% → May 86% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202578%171
July 202568%163
August 202587%160
September 202584%167
October 202586%186
November 202588%155
December 202571%150
January 202675%122
February 202688%111
March 202682%141
April 202677%145
May 202686%146

Based on 1,846 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.