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Route Reliability

Los Angeles → San Francisco

LAX–SFO · 337 miles · Los Angeles International Airport to San Francisco International Airport

72
Usually Fine
WanderNerd Reliability Score
69%
Arrive within 15 minutes
12 min
Average arrival delay
0.9%
Cancelled
11,748
Flights in the data

Data through May 2026.

Who flies it best

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

  1. 1.Alaska Airlines71%2,305 flights
  2. 2.American Airlines71%1,773 flights
  3. 3.United Airlines71%3,583 flights
  4. 4.Delta Air Lines68%2,375 flights
  5. 5.Southwest Airlines64%1,325 flights
  6. 6.Frontier Airlines54%387 flights

What the data says

Morning flights do better here.

LAX–SFO flights departing between 3–6 AM arrived on time 100% of the time, versus 55% between 6–9 PM.

Sunday scaries are real for this one.

LAX–SFO flights arrived on time 75% of the time on Saturdays. On Sundays: 65%.

Alaska Airlines has a clear lead on this route.

Alaska Airlines arrived on time 71% of the time on this route; Frontier Airlines managed 54%.

Recent months have been rougher.

LAX–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
  • Mon67%(1757 flights)
  • Tue74%(1549 flights)
  • Wed70%(1549 flights)
  • Thu67%(1730 flights)
  • Fri66%(1747 flights)
  • Sat75%(1535 flights)
  • Sun65%(1756 flights)
On-time by departure window
  • 3–6 AM100%(40 flights)
  • 6–9 AM77%(2472 flights)
  • 9 AM–12 PM65%(1877 flights)
  • 12–3 PM72%(1599 flights)
  • 3–6 PM74%(2049 flights)
  • 6–9 PM55%(2412 flights)
  • 9 PM–12 AM71%(1174 flights)
On-time trend by month
46%
May

Jun 80% → May 46% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202580%984
July 202571%981
August 202576%996
September 202571%963
October 202566%1048
November 202564%955
December 202568%968
January 202682%860
February 202671%855
March 202685%999
April 202650%988
May 202646%1026

Same trip, other airports

Keep nerding

Based on 11,748 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.