Flight number record
OO 6406
SkyWest Airlines · Palm Springs to Phoenix
- Route
- PSP → PHX
- Departs
- 06:39
- Flights
- 365
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s OO 6406, check with SkyWest Airlines. SkyWest Airlines flies under contract for larger airlines, so a ticket for this flight may show a different airline code and number.
OO 6406 earns a B+. More than four flights in five arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 7 points better than the national rate of 77.3%. When something does go wrong the average delay runs about 2.2 hours. That rests on 365 flights, with a median arrival 10 minutes early.
Set against the rest of the country, OO 6406's record is 7 points better than the US average of 77.3%. That gap is worth roughly 74 fewer late arrivals for every thousand flights.
Key figures
On time
84.7%
Arrivals under 15 minutes late, of 365 completed flights
Avg delay
131 min
Across delayed arrivals only, not all flights
Cancelled
0.00%
National rate is 1.89%
1 hour+ late
6.8%
National rate is 8.3%
These figures cover 365 flights between September 2025 and August 2026. The median arrival is 10 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.
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Schedule
When OO 6406 flies
OO 6406 flies PSP to PHX without a single fixed slot. Its most common scheduled departure was 06:39, used on 50 of 365 flights, with 06:32 (48 flights) and 06:38 (44 flights) next.
- Departs 06:3950 flights13.7%
- Departs 06:3248 flights13.2%
- Departs 06:3844 flights12.1%
Scale runs 0% to 100%.
Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.
A 06:39 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and OO 6406 runs 5 points worse at 84.7%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.
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Against the route
OO 6406 next to PSP to PHX
Every carrier on PSP to PHX combined arrived on time 80.8% of the time across 1,439 flights, so OO 6406 is 4 points ahead of it. SkyWest flew 684 flights on the same city pair under all its flight numbers, including this one, and those ran 81.5% on time. Across its whole network SkyWest Airlines managed 78.7%, which this flight beats by 6 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| OO 6406 | 365 | 84.7% | 131 min | 0.00% | B+ |
| All SkyWest Airlines on PSP–PHX | 684 | 81.5% | 120 min | 1.02% | B |
| All carriers on PSP–PHX | 1,439 | 80.8% | 108 min | 0.90% | B+ |
| SkyWest Airlines, whole network | 855,406 | 78.7% | 88 min | 1.79% | B |
Across the year
OO 6406 quarter by quarter
OO 6406 did not run the same all year. Its best quarter was Apr–Jun 2026 at 89.0% on time and its weakest Oct–Dec 2025 at 77.2%, a swing of 12 points on roughly 73 flights a quarter. The twelve-month rate averages over that, so if you are flying in a weak quarter the quarter's own figure is the better guide.
- Jul–Sep 202530 flights86.7%
- Oct–Dec 202592 flights77.2%
- Jan–Mar 202690 flights87.8%
- Apr–Jun 202691 flights89.0%
- Jul–Sep 202662 flights83.9%
Scale runs 70% to 95%.
By weekday, OO 6406 did best on Friday at 94.2% on time and worst on Saturday at 76.9%. Each day rests on about 52 flights, so a gap of 17 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late OO 6406 runs when it is late
OO 6406 often beats the schedule: 128 of 365 completed flights, 35%, arrived 15 minutes or more early. The 56 late arrivals split 18 under half an hour, 13 between 30 and 60 minutes, and 25 an hour or more.
- 15+ min early128 flights35.1%
- Within 15 min181 flights49.6%
- 15–29 min late18 flights4.9%
- 30–59 min late13 flights3.6%
- 1–2 hours late7 flights1.9%
- 2+ hours late18 flights4.9%
Scale runs 0% to 100%.
Share of 365 completed flights by arrival against schedule.
7 of 45 late departures made up the time and arrived on time, 16% of them. 18 flights left on time and still arrived late.
The worst days
Worst days for OO 6406
The latest arrival of the period was on 18 January 2026, 15 hours 10 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on four of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 18 January 2026 | 15 hours 10 minutes | Carrier |
| 26 October 2025 | 12 hours 25 minutes | Carrier |
| 3 January 2026 | 9 hours 44 minutes | National Airspace System |
| 13 June 2026 | 8 hours 6 minutes | Carrier |
| 6 September 2025 | 6 hours 47 minutes | Carrier |
Delay causes
Why OO 6406 runs late
Carrier accounts for 70% of the 7,348 delay minutes carriers reported here, and the remaining four split what is left.
- 70%Carrier
- 19%National Airspace System
- 7%Late-arriving aircraft
- 4%Extreme weather
The largest share of delay minutes, 70%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 5,166 of the 7,348 delay minutes reported here. The split is drawn from 7,348 delay minutes reported on OO 6406.
Cancellations are rare at 0.00%, below the national 1.89% and low enough to earn the plus on the grade. Almost no flights are called off; the risk here is arriving late, not not arriving.
Connections and routes
What a delay on this flight costs
6.8% of arrivals land an hour or more late, close to the national 8.3%, so a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last about 2.2 hours, which a normal layover absorbs.
Every one of the 365 flights under OO 6406 in the data flew PSP to PHX. The number was not reused on any other city pair, which makes this a clean record of one route.
One caution: this is a thin sample. 365 flights over twelve months is enough to clear this site's floor but not enough to pin the rate down tightly, and a single bad week moves it by more than a point. Treat the grade as a rough reading.
What to do with this
Booking OO 6406
For a booking, read OO 6406 as 84.7% on time with 0.00% cancelled over 365 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- PSP to PHX, every carrier and departure
- PHX to PSP, the return direction
- Phoenix Sky Harbor International (PHX) delay statistics
- SkyWest Airlines on-time record
- Every SkyWest Airlines flight number with a record
- The most and least reliable flight numbers in the US
- Worst months to fly in the US, ranked by the data
A flight number here means SkyWest Airlines’s own number as it reports to the DOT. How the figures are computed is on the methodology page.
Source: US DOT Bureau of Transportation Statistics, on-time performance data, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.