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Route Reliability

Phoenix → San Francisco

PHX–SFO · 651 miles · Phoenix Sky Harbor International Airport to San Francisco International Airport

75
Usually Fine
WanderNerd Reliability Score
72%
Arrive within 15 minutes
13 min
Average arrival delay
0.7%
Cancelled
4,704
Flights in the data

Data through May 2026.

Who flies it best

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

  1. 1.United Airlines76%1,573 flights
  2. 2.American Airlines72%1,672 flights
  3. 3.Frontier Airlines72%254 flights
  4. 4.Alaska Airlines71%126 flights
  5. 5.Southwest Airlines64%1,079 flights

What the data says

Morning-you made the right choice.

PHX–SFO flights departing between 3–6 AM arrived on time 97% of the time, versus 55% between 9 PM–12 AM.

Skip Monday if you can.

PHX–SFO flights arrived on time 81% of the time on Tuesdays. On Mondays: 67%.

United Airlines runs this route best.

United Airlines arrived on time 76% of the time on this route; Southwest Airlines managed 64%.

Recent months have been rougher.

PHX–SFO flights arrived on time 62% of the time over the last three months in the data, compared with 78% 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%(702 flights)
  • Tue81%(592 flights)
  • Wed71%(618 flights)
  • Thu67%(707 flights)
  • Fri71%(699 flights)
  • Sat80%(626 flights)
  • Sun67%(721 flights)
On-time by departure window
  • 3–6 AM97%(33 flights)
  • 6–9 AM79%(1073 flights)
  • 9 AM–12 PM74%(998 flights)
  • 12–3 PM70%(485 flights)
  • 3–6 PM72%(941 flights)
  • 6–9 PM65%(791 flights)
  • 9 PM–12 AM55%(344 flights)
On-time trend by month
47%
May

Jun 75% → May 47% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202575%362
July 202565%355
August 202574%341
September 202578%338
October 202571%371
November 202576%394
December 202575%423
January 202678%384
February 202681%382
March 202684%469
April 202656%429
May 202647%417

Same trip, other airports

Keep nerding

Based on 4,704 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.