Flight number record
OO 5481
SkyWest Airlines · Denver to Springfield
- Route
- DEN → SGF
- Departs
- 09:50
- Flights
- 365
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s OO 5481, 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 5481 lands a B+, 5 points better than the national rate of 77.3%. About one flight in six arrives 15 minutes late or worse, and those flights are late by about 50 minutes on average. That rests on 365 flights, with a median arrival 6 minutes early.
Set against the rest of the country, OO 5481's record is 5 points better than the US average of 77.3%. That gap is worth roughly 46 fewer late arrivals for every thousand flights.
Key figures
On time
81.9%
Arrivals under 15 minutes late, of 360 completed flights
Avg delay
49 min
Across delayed arrivals only, not all flights
Cancelled
0.82%
National rate is 1.89%
1 hour+ late
5.3%
National rate is 8.3%
These figures cover 365 flights between September 2025 and August 2026. The median arrival is 6 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.
Fare search by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Schedule
When OO 5481 flies
OO 5481 flies DEN to SGF without a single fixed slot. Its most common scheduled departure was 09:50, used on 88 of 365 flights, with 09:54 (82 flights) and 09:42 (37 flights) next.
- Departs 09:5088 flights24.1%
- Departs 09:5482 flights22.5%
- Departs 09:4237 flights10.1%
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 09:50 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 83.9%, and OO 5481 runs 2 points worse at 81.9%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.
Timetable by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Against the route
OO 5481 next to DEN to SGF
Every carrier on DEN to SGF combined arrived on time 79.3% of the time across 1,318 flights, so OO 5481 is 3 points ahead of it. Across its whole network SkyWest Airlines managed 78.7%, which this flight beats by 3 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| OO 5481 | 365 | 81.9% | 49 min | 0.82% | B+ |
| All SkyWest Airlines on DEN–SGF | 1,318 | 79.3% | 64 min | 0.83% | B+ |
| All carriers on DEN–SGF | 1,318 | 79.3% | 64 min | 0.83% | B+ |
| SkyWest Airlines, whole network | 855,406 | 78.7% | 88 min | 1.79% | B |
Across the year
OO 5481 quarter by quarter
OO 5481 did not run the same all year. Its best quarter was Jul–Sep 2025 at 93.3% on time and its weakest Apr–Jun 2026 at 76.9%, a swing of 16 points on roughly 73 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 202530 flights93.3%
- Oct–Dec 202592 flights86.7%
- Jan–Mar 202690 flights81.8%
- Apr–Jun 202691 flights76.9%
- Jul–Sep 202662 flights77.0%
Scale runs 70% to 100%.
By weekday, OO 5481 ranged from 77.6% on Saturday to 88.5% on Friday. With about 52 flights behind each day, a spread of 11 points is inside normal variation, so the day you fly is not worth changing for this flight.
Arrival by arrival
How late OO 5481 runs when it is late
OO 5481 often beats the schedule: 101 of 360 completed flights, 28%, arrived 15 minutes or more early. The 65 late arrivals split 28 under half an hour, 18 between 30 and 60 minutes, and 19 an hour or more.
- 15+ min early101 flights28.1%
- Within 15 min194 flights53.9%
- 15–29 min late28 flights7.8%
- 30–59 min late18 flights5.0%
- 1–2 hours late16 flights4.4%
- 2+ hours late3 flights0.8%
Scale runs 0% to 100%.
Share of 360 completed flights by arrival against schedule.
12 of 55 late departures made up the time and arrived on time, 22% of them. In the other direction, 22 flights left on time yet arrived 15 minutes late or more, so that delay built up after pushback: in the air, in a holding pattern or on the ground at SGF.
The worst days
Worst days for OO 5481
The latest arrival of the period was on 25 February 2026, 3 hours 30 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. On three of the five worst days the largest share was filed as carrier-caused (crew, maintenance, fuelling, baggage).
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 25 February 2026 | 3 hours 30 minutes | Late-arriving aircraft |
| 28 June 2026 | 2 hours 44 minutes | Carrier |
| 1 December 2025 | 2 hours 28 minutes | Carrier |
| 4 December 2025 | 1 hour 56 minutes | Late-arriving aircraft |
| 1 July 2026 | 1 hour 54 minutes | Carrier |
Delay causes
Why OO 5481 runs late
Carrier accounts for 63% of the 3,205 delay minutes carriers reported here, and the remaining four split what is left.
- 63%Carrier
- 27%Late-arriving aircraft
- 6%National Airspace System
- 3%Extreme weather
The largest share of delay minutes, 63%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 2,030 of the 3,205 delay minutes reported here. The split is drawn from 3,205 delay minutes reported on OO 5481.
Cancellations are rare at 0.82%, below the national 1.89% and low enough to earn the plus on the grade. Roughly one flight in 100 is called off; the risk here is arriving late, not not arriving.
Connections and routes
What a delay on this flight costs
5.3% 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 50 minutes, which a normal layover absorbs.
The 637 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.
Every one of the 365 flights under OO 5481 in the data flew DEN to SGF. 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. 365 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 5481
For a booking, read OO 5481 as 81.9% on time with 0.82% cancelled over 365 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- DEN to SGF, every carrier and departure
- SGF to DEN, the return direction
- SkyWest Airlines 4693 on the same route84.0%
- SkyWest Airlines 5886 on the same route72.0%
- Denver International (DEN) 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
- Worst months to fly in the US, ranked by the data
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.