Flight number record

OO 4067

SkyWest Airlines · Austin to McAllen

Route: AUS → MFE
Departs: 22:39
Flights: 311
Period: September 2025 to August 2026

Historical statistics for September 2025 to August 2026, not live status. For today’s OO 4067, 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 4067 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 2.3 hours. That rests on 311 flights, with a median arrival 12 minutes early.

Set against the rest of the country, OO 4067's record is 7 points better than the US average of 77.3%. That gap is worth roughly 68 fewer late arrivals for every thousand flights.

On time

84.1%

Arrivals under 15 minutes late, of 308 completed flights

Avg delay

138 min

Across delayed arrivals only, not all flights

Cancelled

0.64%

National rate is 1.89%

1 hour+ late

7.5%

National rate is 8.3%

These figures cover 311 flights between September 2025 and August 2026. The median arrival is 12 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 4067 flies

OO 4067 flies AUS to MFE without a single fixed slot. Its most common scheduled departure was 22:39, used on 68 of 311 flights, with 22:35 (65 flights) and 22:33 (35 flights) next.

Departs 22:3968 flights21.9%
Departs 22:3565 flights20.9%
Departs 22:3335 flights11.3%

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 22:39 departure sits in the 8pm–5am window. Across every US flight scheduled in that window the on-time rate is 70.1%, and OO 4067 runs 14 points better at 84.1%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.

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Against the route

OO 4067 next to AUS to MFE

Every carrier on AUS to MFE combined arrived on time 83.8% of the time across 1,032 flights, so OO 4067 is about level with it. Across its whole network SkyWest Airlines managed 78.7%, which this flight beats by 5 points.

OO 4067 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
OO 4067thin sample	311	84.1%	138 min	0.64%	B+
All SkyWest Airlines on AUS–MFE	1,032	83.8%	89 min	0.39%	B+
All carriers on AUS–MFE	1,032	83.8%	89 min	0.39%	B+
SkyWest Airlines, whole network	855,406	78.7%	88 min	1.79%	B

Across the year

OO 4067 quarter by quarter

OO 4067 did not run the same all year. Its best quarter was Oct–Dec 2025 at 91.2% on time and its weakest Apr–Jun 2026 at 77.3%, a swing of 14 points on roughly 78 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 202526 flights—
Oct–Dec 202580 flights91.2%
Jan–Mar 202676 flights77.3%
Apr–Jun 202677 flights77.3%
Jul–Sep 202652 flights86.5%

Scale runs 70% to 95%. Rows with fewer than 30 flights show a dash.

By weekday, OO 4067 did best on Wednesday at 92.0% on time and worst on Sunday at 68.8%. Each day rests on about 44 flights, so a gap of 23 points is worth noticing but could still narrow in another year.

Arrival by arrival

How late OO 4067 runs when it is late

OO 4067 often beats the schedule: 127 of 308 completed flights, 41%, arrived 15 minutes or more early. The 49 late arrivals split 9 under half an hour, 17 between 30 and 60 minutes, and 23 an hour or more.

15+ min early127 flights41.2%
Within 15 min132 flights42.9%
15–29 min late9 flights2.9%
30–59 min late17 flights5.5%
1–2 hours late14 flights4.5%
2+ hours late9 flights2.9%

Scale runs 0% to 100%.

Share of 308 completed flights by arrival against schedule.

17 of 64 late departures made up the time and arrived on time, 27% of them. Only 2 left on time and still arrived late.

The worst days

Worst days for OO 4067

The latest arrival of the period was on 2 December 2025, 17 hours 18 minutes behind schedule; most of its delay minutes were filed as national airspace system delay. On three of the five worst days the largest share was filed as carrier-caused (crew, maintenance, fuelling, baggage).

The latest arrivals of OO 4067 in the period
Date	Arrived late by	Largest filed cause
2 December 2025	17 hours 18 minutes	National Airspace System
6 August 2026	12 hours 47 minutes	Carrier
20 July 2026	11 hours 57 minutes	Carrier
28 April 2026	11 hours 16 minutes	Carrier
26 May 2026	8 hours 45 minutes	Extreme weather

Delay causes

Why OO 4067 runs late

Carrier accounts for 63% of the 6,739 delay minutes carriers reported here, and the remaining four split what is left.

Carrier
63%
National Airspace System
21%
Extreme weather
16%

Extreme weather accounts for 16% of delay minutes, well above the single-digit share typical across the system. Weather delays are lumpy: they arrive as whole bad days rather than as a steady drag, so the quarterly figures above are the more useful view of the risk. The national share is 6%, so this operation carries roughly 2.6 times the usual weather exposure. The split is drawn from 6,739 delay minutes reported on OO 4067.

Cancellations are rare at 0.64%, below the national 1.89% and low enough to earn the plus on the grade. Roughly one flight in 100 is called off; the risk here is arriving late, not not arriving.

Connections and routes

What a delay on this flight costs

7.5% 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 2.3 hours, which a normal layover absorbs.

Every one of the 311 flights under OO 4067 in the data flew AUS to MFE. 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. 311 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 4067

For a booking, read OO 4067 as 84.1% on time with 0.64% cancelled over 311 flights. Those are rates from the past twelve months, not a forecast for any particular day.

Where to go next

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 22 October 2026; recomputed monthly. How this data is collected.

Key figures