Flight number record
OO 3727
SkyWest Airlines · Salt Lake City to Redmond
- Route
- SLC → RDM
- Departs
- 10:45
- Flights
- 255
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s OO 3727, 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 3727 earns an A+. Close to nine flights in ten arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 15 points better than the national rate of 77.3%. When something does go wrong the average delay runs about an hour. That rests on 255 flights, with a median arrival 8 minutes early.
Set against the rest of the country, OO 3727's record is 15 points better than the US average of 77.3%. That gap is worth roughly 148 fewer late arrivals for every thousand flights.
Key figures
On time
92.1%
Arrivals under 15 minutes late, of 254 completed flights
Avg delay
66 min
Across delayed arrivals only, not all flights
Cancelled
0.00%
National rate is 1.89%
1 hour+ late
3.5%
National rate is 8.3%
These figures cover 255 flights between September 2025 and August 2026. The median arrival is 8 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 3727 flies
OO 3727 flies SLC to RDM without a single fixed slot. Its most common scheduled departure was 10:45, used on 112 of 255 flights, with 10:56 (38 flights) and 11:00 (36 flights) next.
- Departs 10:45112 flights43.9%
- Departs 10:5638 flights14.9%
- Departs 11:0036 flights14.1%
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 10:45 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 83.9%, and OO 3727 runs 8 points better at 92.1%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.
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Against the route
OO 3727 next to SLC to RDM
Every carrier on SLC to RDM combined arrived on time 93.2% of the time across 729 flights, so OO 3727 is about level with it. Across its whole network SkyWest Airlines managed 78.7%, which this flight beats by 13 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| OO 3727thin sample | 255 | 92.1% | 66 min | 0.00% | A+ |
| All SkyWest Airlines on SLC–RDM | 729 | 93.2% | 100 min | 0.41% | A+ |
| All carriers on SLC–RDM | 729 | 93.2% | 100 min | 0.41% | A+ |
| SkyWest Airlines, whole network | 855,406 | 78.7% | 88 min | 1.79% | B |
Across the year
OO 3727 quarter by quarter
Quarter by quarter OO 3727 held fairly steady: 92.1% in Jan–Mar 2026, 91.2% in Apr–Jun 2026 and 93.5% in Jul–Sep 2026. A spread of 2 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.
- Oct–Dec 202512 flights—
- Jan–Mar 202690 flights92.1%
- Apr–Jun 202691 flights91.2%
- Jul–Sep 202662 flights93.5%
Scale runs 85% to 100%. Rows with fewer than 30 flights show a dash.
By weekday, OO 3727 did best on Sunday at 100.0% on time and worst on Wednesday at 86.1%. Each day rests on about 36 flights, so a gap of 14 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late OO 3727 runs when it is late
OO 3727 often beats the schedule: 70 of 254 completed flights, 28%, arrived 15 minutes or more early. Most of the lateness is short. 10 of the 20 late arrivals were under half an hour behind, and 9 reached an hour or more.
- 15+ min early70 flights27.6%
- Within 15 min164 flights64.6%
- 15–29 min late10 flights3.9%
- 30–59 min late1 flights0.4%
- 1–2 hours late6 flights2.4%
- 2+ hours late3 flights1.2%
Scale runs 0% to 100%.
Share of 254 completed flights by arrival against schedule.
Only 19 of 254 completed flights left 15 minutes late or more, too few to say how often the time is made up.
The worst days
Worst days for OO 3727
The latest arrival of the period was on 18 August 2026, 4 hours 58 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on four of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 18 August 2026 | 4 hours 58 minutes | Carrier |
| 18 February 2026 | 2 hours 51 minutes | Carrier |
| 19 May 2026 | 2 hours 10 minutes | Carrier |
| 7 May 2026 | 1 hour 34 minutes | Carrier |
| 7 April 2026 | 1 hour 33 minutes | Extreme weather |
Delay causes
Why OO 3727 runs late
Carrier accounts for 80% of the 1,312 delay minutes carriers reported here, and the remaining four split what is left.
- 80%Carrier
- 13%National Airspace System
- 7%Extreme weather
The largest share of delay minutes, 80%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 1,049 of the 1,312 delay minutes reported here. The split is drawn from 1,312 delay minutes reported on OO 3727.
Cancellations are rare at 0.00%, below the national 1.89% 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
Badly late arrivals are rare here: only 3.5% land an hour or more behind schedule, against 8.3% nationally. Connections built on this flight are about as safe as US domestic connections get, though a cancelled flight still ignores every layover you give it.
The 525 miles between these two airports put this in the middle of the US network, around two and a half to three hours of block time. That is enough cruise to absorb a ten-minute late pushback and not enough to absorb thirty.
The same number turns up on five other city pairs in the data, including RDM to SLC (224), DTW to STL (1) and STL to DTW (1), but none flew often enough under OO 3727 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to SLC to RDM only.
One caution: this is a thin sample. 255 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 3727
For a booking, OO 3727 has one of the better records a US domestic flight can show: 92.1% on time and 0.00% cancelled. That is a base rate, not a promise about any single day.
Related
Where to go next
- SLC to RDM, every carrier and departure
- RDM to SLC, the return direction
- Salt Lake City International (SLC) delay statistics
- SkyWest Airlines on-time record
- Every SkyWest Airlines flight number with a record
- The most and least reliable flight numbers in the US
- The best day of the week to fly, and why it is the second lever
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 ; recomputed monthly. How this data is collected.