Flight number record

OO 5425

SkyWest Airlines · San Francisco to Redmond

Route: SFO → RDM
Departs: 16:30
Flights: 274
Period: September 2025 to August 2026

Historical statistics for September 2025 to August 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 77.3%. Roughly one flight in four arrives 15 minutes late or worse, and those flights are late by about an hour on average. That rests on 274 flights, with a median arrival 5 minutes early.

On time

77.6%

Arrivals under 15 minutes late, of 268 completed flights

Avg delay

61 min

Across delayed arrivals only, not all flights

Cancelled

1.82%

National rate is 1.89%

1 hour+ late

6.3%

National rate is 8.3%

These figures cover 274 flights between September 2025 and August 2026. The median arrival is 5 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 5425 flies

OO 5425 flies SFO to RDM without a single fixed slot. Its most common scheduled departure was 16:30, used on 56 of 274 flights, with 16:10 (51 flights) and 16:40 (48 flights) next.

Departs 16:3056 flights20.4%
Departs 16:1051 flights18.6%
Departs 16:4048 flights17.5%

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 16:30 departure sits in the 2pm–5pm window. Across every US flight scheduled in that window the on-time rate is 71.9%, and OO 5425 runs 6 points better at 77.6%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.

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Against the route

OO 5425 next to SFO to RDM

Every carrier on SFO to RDM combined arrived on time 74.6% of the time across 1,310 flights, so OO 5425 is 3 points ahead of it. SkyWest flew 654 flights on the same city pair under all its flight numbers, including this one, and those ran 68.8% on time. Across its whole network SkyWest Airlines managed 78.7%, close to this flight's figure.

OO 5425 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
OO 5425thin sample	274	77.6%	61 min	1.82%	B
All SkyWest Airlines on SFO–RDM	654	68.8%	65 min	1.38%	C
All carriers on SFO–RDM	1,310	74.6%	64 min	0.99%	C+
SkyWest Airlines, whole network	855,406	78.7%	88 min	1.79%	B

Across the year

OO 5425 quarter by quarter

Quarter by quarter OO 5425 held fairly steady: 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 202523 flights—
Oct–Dec 202591 flights78.0%
Jan–Mar 202689 flights75.3%
Apr–Jun 202643 flights80.5%
Jul–Sep 202628 flights—

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

By weekday, OO 5425 did best on Saturday at 86.1% on time and worst on Thursday at 73.8%. Each day rests on about 39 flights, so a gap of 12 points is worth noticing but could still narrow in another year.

Arrival by arrival

How late OO 5425 runs when it is late

The 60 late arrivals split 26 under half an hour, 17 between 30 and 60 minutes, and 17 an hour or more.

15+ min early55 flights20.5%
Within 15 min153 flights57.1%
15–29 min late26 flights9.7%
30–59 min late17 flights6.3%
1–2 hours late7 flights2.6%
2+ hours late10 flights3.7%

Scale runs 0% to 100%.

Share of 268 completed flights by arrival against schedule.

9 of 61 late departures made up the time and arrived on time, 15% of them. 8 flights left on time and still arrived late.

The worst days

Worst days for OO 5425

The latest arrival of the period was on 27 December 2025, 5 hours 11 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). Three of the five worst days fell in December 2025.

The latest arrivals of OO 5425 in the period
Date	Arrived late by	Largest filed cause
27 December 2025	5 hours 11 minutes	Carrier
27 February 2026	3 hours 32 minutes	Carrier
22 December 2025	3 hours 6 minutes	Carrier
30 November 2025	2 hours 59 minutes	Late-arriving aircraft
19 December 2025	2 hours 56 minutes	Late-arriving aircraft

Delay causes

Why OO 5425 runs late

Carrier accounts for 45% of the 3,635 delay minutes carriers reported here, and the remaining four split what is left.

Carrier
45%
Late-arriving aircraft
29%
National Airspace System
22%
Extreme weather
3%

The largest share of delay minutes, 45%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 1,643 of the 3,635 delay minutes reported here. The split is drawn from 3,635 delay minutes reported on OO 5425.

Cancellations sit at 1.82% against a national 1.89%, which is ordinary. Diversions add another 0.36%.

Connections and routes

What a delay on this flight costs

6.3% 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 an hour, which a normal layover absorbs.

The same number turns up on four other city pairs in the data, including JAX to IAH (17), LAX to PHX (15) 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. 274 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 77.6% on time with 1.82% cancelled over 274 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