Flight number record

OO 5951

SkyWest Airlines · San Luis Obispo to San Francisco

Route: SBP → SFO
Departs: 14:19
Flights: 321
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s OO 5951, 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 5951 sits in the middle of the pack with a C+. About seven flights in ten arrive on time by the DOT's definition, 8 points worse than the national rate of 77.6%. The late ones land about an hour behind schedule. That rests on 321 flights, with a median arrival 3 minutes early.

The national on-time rate over the same period is 77.6%, so OO 5951 runs 8 points behind the country as a whole. Across a thousand flights that is about 78 extra late arrivals.

On time

69.8%

Arrivals under 15 minutes late, of 321 completed flights

Avg delay

58 min

Across delayed arrivals only, not all flights

Cancelled

0.00%

National rate is 1.81%

1 hour+ late

9.0%

National rate is 8.1%

These figures cover 321 flights between July 2025 and June 2026. Beyond the headline rate, 9.0% of arrivals land a full hour or more behind schedule. That is the number that wrecks a connection, and it is not visible in an on-time percentage alone.

Schedule

When OO 5951 flies

OO 5951 flies SBP to SFO without a single fixed slot. Its most common scheduled departure was 14:19, used on 65 of 321 flights, with 14:21 (55 flights) and 14:27 (49 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 14:1965 flights20.2%
Departs 14:2155 flights17.1%
Departs 14:2749 flights15.3%

Scale runs 0% to 100%. Rows with fewer than 30 flights show a dash.

Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.

A 14:19 departure sits in the 2pm–5pm window. Across every US flight scheduled in that window the on-time rate is 72.4%, and OO 5951 runs 3 points worse at 69.8%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.

Against the route

OO 5951 next to SBP to SFO

Every carrier on SBP to SFO combined arrived on time 62.1% of the time across 1,145 flights, so OO 5951 is 8 points ahead of it. SkyWest flew 965 flights on the same city pair under all its flight numbers, including this one, and those ran 62.3% on time. Across its whole network SkyWest Airlines managed 79.0%, which this flight trails by 9 points.

OO 5951 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
OO 5951thin sample	321	69.8%	58 min	0.00%	C+
All SkyWest Airlines on SBP–SFO	965	62.3%	67 min	1.14%	D
All carriers on SBP–SFO	1,145	62.1%	70 min	1.14%	D
SkyWest Airlines, whole network	852,935	79.0%	88 min	1.77%	B

Across the year

OO 5951 quarter by quarter

OO 5951 did not run the same all year. Its best quarter was Jul–Sep 2025 at 85.4% on time and its weakest Apr–Jun 2026 at 42.0%, a swing of 43 points on roughly 80 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 202589 flights85.4%
Oct–Dec 202592 flights73.9%
Jan–Mar 202690 flights65.6%
Apr–Jun 202650 flights42.0%

Scale runs 35% to 90%. Rows with fewer than 30 flights show a dash.

By weekday, OO 5951 did best on Tuesday at 80.4% on time and worst on Wednesday at 60.9%. Each day rests on about 46 flights, so a gap of 20 points is worth noticing but could still narrow in another year.

Delay causes

Why OO 5951 runs late

One category carries most of the weight here. Carrier accounts for 45% of the 5,668 delay minutes carriers reported, and the remaining four split what is left. The split is by minutes rather than by flights, so a few very long delays count for as much as many short ones.

Carrier
45%
National Airspace System
43%
Late-arriving aircraft
9%
Extreme weather
3%

43% of delay minutes are charged to the National Airspace System: air traffic volume, runway configuration, ground stops. No carrier can price its way out of that, which is why airport choice moves the number here more than carrier choice does. That is 2,453 minutes out of 5,668, against a national NAS share of 21%. The split is drawn from 5,668 delay minutes reported on OO 5951.

Cancellations are rare at 0.00%, below the national 1.81% 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

For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 9.0% of arrivals land a full hour or more behind schedule, against 8.1% nationally. A 45-minute layover does not survive that, and no amount of walking quickly changes it. Ninety minutes is the honest minimum here, and two hours if the onward flight is on a separate ticket.

Every one of the 321 flights under OO 5951 in the data flew SBP to SFO. 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. 321 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 5951

For a booking, read OO 5951 as 69.8% on time with 0.00% cancelled over 321 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, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.

Key figures