Flight number record

OO 5425

SkyWest Airlines · San Francisco to Redmond

Route: SFO → RDM
Departs: 16:30
Flights: 276
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s OO 5425, 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 5425 lands a B, level with the national rate of 77.6%. Roughly one flight in four arrives 15 minutes late or worse, and those flights are late by about an hour on average. That is a workable record, not a spotless one. That rests on 276 flights, with a median arrival 4 minutes early.

On time

77.0%

Arrivals under 15 minutes late, of 270 completed flights

Avg delay

64 min

Across delayed arrivals only, not all flights

Cancelled

1.81%

National rate is 1.81%

1 hour+ late

7.4%

National rate is 8.1%

These figures cover 276 flights between July 2025 and June 2026. The median arrival is 4 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.

Schedule

When OO 5425 flies

OO 5425 flies SFO to RDM without a single fixed slot. Its most common scheduled departure was 16:30, used on 78 of 276 flights, with 16:40 (56 flights) and 16:10 (51 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 16:3078 flights28.3%
Departs 16:4056 flights20.3%
Departs 16:1051 flights18.5%

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 16:30 departure sits in the 2pm–5pm window. Across every US flight scheduled in that window the on-time rate is 72.4%, and OO 5425 runs 5 points better at 77.0%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.

Against the route

OO 5425 next to SFO to RDM

Every carrier on SFO to RDM combined arrived on time 77.7% of the time across 1,278 flights, so OO 5425 is about level with it. SkyWest flew 657 flights on the same city pair under all its flight numbers, including this one, and those ran 71.4% on time. Across its whole network SkyWest Airlines managed 79.0%, which this flight trails by 2 points.

OO 5425 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
OO 5425thin sample	276	77.0%	64 min	1.81%	B
All SkyWest Airlines on SFO–RDM	657	71.4%	60 min	1.37%	C
All carriers on SFO–RDM	1,278	77.7%	60 min	1.02%	B
SkyWest Airlines, whole network	852,935	79.0%	88 min	1.77%	B

Across the year

OO 5425 quarter by quarter

Quarter by quarter OO 5425 held fairly steady: 75.5% in Jul–Sep 2025, 78.0% in Oct–Dec 2025, 75.3% in Jan–Mar 2026 and 80.5% in Apr–Jun 2026. A spread of 5 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.

Jul–Sep 202553 flights75.5%
Oct–Dec 202591 flights78.0%
Jan–Mar 202689 flights75.3%
Apr–Jun 202643 flights80.5%

Scale runs 65% to 85%. Rows with fewer than 30 flights show a dash.

By weekday, OO 5425 did best on Saturday at 87.1% on time and worst on Sunday at 70.7%. Each day rests on about 39 flights, so a gap of 16 points is worth noticing but could still narrow in another year.

Delay causes

Why OO 5425 runs late

One category carries most of the weight here. Carrier accounts for 48% of the 3,954 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
48%
Late-arriving aircraft
31%
National Airspace System
19%
Extreme weather
1%

The largest share of delay minutes, 48%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. Unlike weather, that is a management outcome, and it is the category where the gap between two carriers on the same schedule is genuinely earned. It accounts for 1,907 of the 3,954 delay minutes reported here. The split is drawn from 3,954 delay minutes reported on OO 5425.

Cancellations sit at 1.81% against a national 1.81%, which is ordinary. Diversions add another 0.36%.

Connections and routes

What a delay on this flight costs

7.4% of arrivals land an hour or more late, close to the national 8.1%. That is the figure that decides a connection, and it says a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last about an hour, which a normal layover absorbs.

The same number turns up on five other city pairs in the data, including JAX to IAH (17), BDL to ORD (13) and ORD to GRR (11), but none flew often enough under OO 5425 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to SFO to RDM only.

One caution: this is a thin sample. 276 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 5425

For a booking, read OO 5425 as 77.0% on time with 1.81% cancelled over 276 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