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Route · SJC → PHX · 2020–2025 BTS data

San Jose to Phoenix

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), SJC to PHX (San Jose to Phoenix) ranks #512 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

86.3%
On-time
+7.3 pts
vs US avg
68 min
Delay when late
16,551
Flights
#512 of 4927
Corpus placement

Cancelled

0.3%

Best Month

Sep 2024 91%

Worst Month

Oct 2025 76%

Distance

621 mi

Carriers

33

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Dec 2025 276 51 0 0 WN,AA,MQ,OO
Nov 2025 274 55 4 0 OO,MQ,AA,WN
Oct 2025 253 60 0 1 AA,OO,WN,MQ
Sep 2025 201 29 3 0 MQ,WN,OO,AA
Aug 2025 208 31 0 1 AA,OO,WN,MQ
Jul 2025 247 44 2 0 AA,WN,MQ
Jun 2025 239 45 0 0 AA,OO,WN,MQ
May 2025 266 36 3 0 AA,OO,WN
Apr 2025 288 38 0 0 OO,WN,AA
Mar 2025 318 49 0 0 AA,OO,WN,F9
Feb 2025 245 25 0 0 AA,OO,WN,F9
Jan 2025 241 25 0 0 AA,OO,WN,F9,MQ
Dec 2024 297 38 1 0 AA,F9,MQ,OO,WN
Nov 2024 302 33 0 0 OO,MQ,WN,F9,AA
Oct 2024 295 38 1 0 MQ,OO,WN,F9,AA
Sep 2024 259 23 0 1 WN,OO,AA,F9,MQ
Aug 2024 283 34 0 2 AA,F9,MQ,WN,OO
Jul 2024 283 47 1 2 MQ,OO,WN
Jun 2024 273 47 0 0 AA,MQ,OO,WN
May 2024 299 43 0 0 AA,MQ,OO,WN
Apr 2024 293 33 2 0 AA,MQ,OO,WN
Mar 2024 299 47 1 1 AA,MQ,OO,WN
Feb 2024 237 30 0 0 AA,MQ,OO,WN
Jan 2024 232 42 1 0 AA,MQ,WN,OO

SJC–PHX seasonal on-time pattern

Best: April (89.7%) · weakest: July (80.7%)

80%82%84%86%88%90%92% JanFebMarAprMayJunJulAugSepOctNovDec 85%

Strongest calendar month

April

89.7% on-time · ~240 flights/mo

Busiest calendar month

March

~271 flights/mo avg

Weakest calendar month

July

80.7% on-time · ~231 flights/mo

Cancellation Rate

0.3%

19 of 6,408 flights

Diversion Rate

0.1%

8 of 6,408 flights

Explore origin & destination

On-time and delay data for the airports this route connects.

SJC - San Jose

Full on-time, delay-cause, and seasonal performance for San Jose, CA.

SJC on-time profile

PHX - Phoenix

Full on-time, delay-cause, and seasonal performance for Phoenix, AZ.

PHX on-time profile

Compare the two airports

See SJC and PHX side by side on delays, cancellations, and reliability.

Compare SJC vs PHX

Origin-hub reliability standing

Among SJC's stronger departures

SJC → PHX posts a 86.3% on-time rate, landing in the ≥85% band with 21 of 31 BTS-tracked routes leaving San Jose. The same hub also shows 9 mid-band and 1 challenged departures · fleet-wide on-time rank #831 of 4927 (highest on-time = #1).

What the Data Says About SJC to PHX

San Jose to Phoenix (SJC to PHX) is one of the more dependable pairings in the BTS On-Time Performance dataset: a 86.3% on-time rate across 16,551 flights, with delays that do happen averaging 68.1 minutes. The corridor runs roughly 621 miles and is served by 33 carriers. Over the most recent 24 months, 19 of 6,408 flights were cancelled (0.3%) and 8 diverted (0.1%).

Monthly performance varies moderately here: Sep 2024 was the strongest month at 91% on-time versus Oct 2025 at 76%, a 15-point difference.

On the multi-year calendar, SJC–PHX peaks in April at 89.7% on-time while March carries the heaviest traffic (~271 flights per month) ; the softest month is July at 80.7%, a 9.0-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does SJC to PHX rank among US routes by traffic? ▼
According to PlainFlights' route traffic ranking, SJC to PHX ranks #512 of 4927 tracked domestic routes by total flights (most flights = #1). That ordinal matches our busiest-routes listing (total_flights DESC). See /methodology#corpus-placement for the exact sort basis.
How often are flights delayed from SJC to PHX? ▼
Flights from San Jose to Phoenix have a 86.3% on-time rate based on 16,551 flights. The average delay is 68.1 minutes. The best recent month was Sep 2024 with 91% on-time.
What is the cancellation rate for SJC to PHX? ▼
Over the last 24 months, 0.3% of flights on this route were cancelled (19 of 6,408 flights) and 0.1% were diverted.
How far is the flight from SJC to PHX? ▼
The flight distance from San Jose (SJC) to Phoenix (PHX) is approximately 621 miles. This route is served by 33 carriers.
When is the best time to fly from SJC to PHX? ▼
The best recent month for on-time performance was Sep 2024 (91% on-time). The worst was Oct 2025 (76% on-time). Consider booking during months with historically better performance.

Airports on this route

SJC Airport

San Jose
PHX Airport

Phoenix
Data source

Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.

Read our methodology - how this data is sourced, computed, and verified.

Using SJC–PHX data

SJC–PHX runs 7.3 pts above the national 79% average; the remaining risk is month-to-month swing and carrier mix, not a weak headline rate.

  • Compare SJC and PHX airport profiles: delay causes and top routes differ even on the same corridor. SJC airport
  • If your dates flex, April (89.7% on-time) beats July (80.7%) on this corridor. Seasonal chart
  • 4 other routes post a similar 86.3% on-time rate; compare before you commit to this pairing. Similar routes

On-time rate reflects the BTS historical average across all reporting carriers on this origin–destination pair, not any single flight or booking recommendation.

Data sourced from U.S. Department of Transportation Bureau of Transportation Statistics (BTS) On-Time Performance data. See our methodology for details. Retrieved and formatted by PlainFlights

Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.