Flight number record

OO 5974

SkyWest Airlines · Fresno to San Francisco

Route: FAT → SFO
Departs: 14:05
Flights: 280
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s OO 5974, 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 5974 sits in the middle of the pack with a C. Close to three flights in four arrive on time by the DOT's definition, 4 points worse than the national rate of 77.6%. The late ones land an hour and a half behind schedule. That rests on 280 flights, with a median arrival 7 minutes early.

The national on-time rate over the same period is 77.6%, so OO 5974 runs 4 points behind the country as a whole. Across a thousand flights that is about 40 extra late arrivals.

On time

73.6%

Arrivals under 15 minutes late, of 277 completed flights

Avg delay

93 min

Across delayed arrivals only, not all flights

Cancelled

1.07%

National rate is 1.81%

1 hour+ late

12.3%

National rate is 8.1%

These figures cover 280 flights between July 2025 and June 2026. Beyond the headline rate, 12.3% 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 5974 flies

OO 5974 flies FAT to SFO without a single fixed slot. Its most common scheduled departure was 14:05, used on 74 of 280 flights, with 14:17 (49 flights) and 14:22 (37 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 14:0574 flights26.4%
Departs 14:1749 flights17.5%
Departs 14:2237 flights13.2%

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 14:05 departure sits in the 2pm–5pm window. Across every US flight scheduled in that window the on-time rate is 72.4%, and OO 5974 runs level with that at 73.6%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.

Against the route

OO 5974 next to FAT to SFO

Every carrier on FAT to SFO combined arrived on time 67.0% of the time across 1,276 flights, so OO 5974 is 7 points ahead of it. Across its whole network SkyWest Airlines managed 79.0%, which this flight trails by 5 points.

OO 5974 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
OO 5974thin sample	280	73.6%	93 min	1.07%	C
All SkyWest Airlines on FAT–SFO	1,276	67.0%	80 min	1.25%	C
All carriers on FAT–SFO	1,276	67.0%	80 min	1.25%	C
SkyWest Airlines, whole network	852,935	79.0%	88 min	1.77%	B

Across the year

OO 5974 quarter by quarter

Quarter by quarter OO 5974 held fairly steady: 79.3% in Jul–Sep 2025, 70.9% in Oct–Dec 2025 and 75.3% in Jan–Mar 2026. A spread of 8 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.

Jul–Sep 202592 flights79.3%
Oct–Dec 202581 flights70.9%
Jan–Mar 202686 flights75.3%
Apr–Jun 202621 flights—

Scale runs 60% to 85%. Rows with fewer than 30 flights show a dash.

By weekday, OO 5974 did best on Saturday at 87.8% on time and worst on Friday at 67.5%. Each day rests on about 40 flights, so a gap of 20 points is worth noticing but could still narrow in another year.

Delay causes

Why OO 5974 runs late

One category carries most of the weight here. National Airspace System accounts for 43% of the 6,757 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.

National Airspace System
43%
Late-arriving aircraft
30%
Carrier
23%
Extreme weather
4%

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 2,938 minutes out of 6,757, against a national NAS share of 21%. The split is drawn from 6,757 delay minutes reported on OO 5974.

Cancellations sit at 1.07% against a national 1.81%, which is ordinary. Diversions add another 0.00%.

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. 12.3% 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.

The same number turns up on three other city pairs in the data, including ORD to ATW (35), ORD to DLH (29) and ORD to GRR (2), but none flew often enough under OO 5974 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to FAT to SFO only.

One caution: this is a thin sample. 280 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 5974

For a booking, OO 5974 is a flight to put a long connection behind. 12.3% of its completed flights arrived an hour or more late, which a short layover will not absorb. If the onward flight is on a separate ticket, the risk sits with you.

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