Flight number record

OO 5898

SkyWest Airlines · Springfield to Denver

Route: SGF → DEN
Departs: 09:10
Flights: 363
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s OO 5898, 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 5898 lands a B+, 6 points better than the national rate of 77.6%. About one flight in six 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 363 flights, with a median arrival 4 minutes early.

Set against the rest of the country, OO 5898's record is 6 points better than the US average of 77.6%. That gap is worth roughly 63 fewer late arrivals for every thousand flights.

On time

83.9%

Arrivals under 15 minutes late, of 360 completed flights

Avg delay

65 min

Across delayed arrivals only, not all flights

Cancelled

0.83%

National rate is 1.81%

1 hour+ late

5.6%

National rate is 8.1%

These figures cover 363 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 5898 flies

OO 5898 flies SGF to DEN without a single fixed slot. Its most common scheduled departure was 09:10, used on 91 of 363 flights, with 09:03 (61 flights) and 09:05 (51 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 09:1091 flights25.1%
Departs 09:0361 flights16.8%
Departs 09:0551 flights14.0%

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 09:10 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 84.1%, and OO 5898 runs level with that at 83.9%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.

Against the route

OO 5898 next to SGF to DEN

Every carrier on SGF to DEN combined arrived on time 79.6% of the time across 1,285 flights, so OO 5898 is 4 points ahead of it. Across its whole network SkyWest Airlines managed 79.0%, which this flight beats by 5 points.

OO 5898 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
OO 5898thin sample	363	83.9%	65 min	0.83%	B+
All SkyWest Airlines on SGF–DEN	1,285	79.6%	82 min	0.70%	B+
All carriers on SGF–DEN	1,285	79.6%	82 min	0.70%	B+
SkyWest Airlines, whole network	852,935	79.0%	88 min	1.77%	B

Across the year

OO 5898 quarter by quarter

OO 5898 did not run the same all year. Its best quarter was Apr–Jun 2026 at 88.8% on time and its weakest Jul–Sep 2025 at 75.0%, a swing of 14 points on roughly 91 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 202592 flights75.0%
Oct–Dec 202591 flights86.8%
Jan–Mar 202690 flights85.2%
Apr–Jun 202690 flights88.8%

Scale runs 65% to 95%. Rows with fewer than 30 flights show a dash.

By weekday, OO 5898 ranged from 79.2% on Tuesday to 90.2% on Sunday. 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.

Delay causes

Why OO 5898 runs late

One category carries most of the weight here. Carrier accounts for 64% of the 3,743 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
64%
National Airspace System
31%
Late-arriving aircraft
5%

The largest share of delay minutes, 64%, 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 2,396 of the 3,743 delay minutes reported here. The split is drawn from 3,743 delay minutes reported on OO 5898.

Cancellations are rare at 0.83%, below the national 1.81% 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

5.6% 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 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. It is also long enough that the aircraft usually flies three or four legs a day rather than six, which slows how fast delay compounds.

Every one of the 363 flights under OO 5898 in the data flew SGF to DEN. 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. 363 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 5898

For a booking, read OO 5898 as 83.9% on time with 0.83% cancelled over 363 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