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Route Reliability

Las Vegas → San Francisco

LAS–SFO · 414 miles · Harry Reid International Airport to San Francisco International Airport

70
Usually Fine
WanderNerd Reliability Score
67%
Arrive within 15 minutes
13 min
Average arrival delay
0.7%
Cancelled
6,051
Flights in the data

Data through May 2026.

Who flies it best

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

  1. 1.United Airlines72%2,733 flights
  2. 2.Alaska Airlines69%1,143 flights
  3. 3.Frontier Airlines67%866 flights
  4. 4.Southwest Airlines55%1,309 flights

What the data says

Morning-you made the right choice.

LAS–SFO flights departing between 3–6 AM arrived on time 95% of the time, versus 52% between 6–9 PM.

Sunday scaries are real for this one.

LAS–SFO flights arrived on time 77% of the time on Saturdays and just 62% on Sundays. That gap is worth planning around.

United Airlines has a clear lead on this route.

United Airlines arrived on time 72% of the time on this route; Southwest Airlines managed 55%.

Recent months have been rougher.

LAS–SFO flights arrived on time 60% of the time over the last three months in the data, compared with 73% 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
  • Mon65%(914 flights)
  • Tue73%(732 flights)
  • Wed68%(752 flights)
  • Thu63%(916 flights)
  • Fri63%(925 flights)
  • Sat77%(790 flights)
  • Sun62%(976 flights)
On-time by departure window
  • 3–6 AM95%(21 flights)
  • 6–9 AM77%(1442 flights)
  • 9 AM–12 PM72%(1100 flights)
  • 12–3 PM66%(741 flights)
  • 3–6 PM70%(1001 flights)
  • 6–9 PM52%(1267 flights)
  • 9 PM–12 AM55%(433 flights)
On-time trend by month
41%
May

Jun 77% → May 41% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202577%489
July 202566%488
August 202575%520
September 202564%515
October 202560%517
November 202563%488
December 202568%508
January 202679%517
February 202673%445
March 202684%485
April 202654%503
May 202641%530

Same trip, other airports

Keep nerding

Based on 6,051 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.