Flight number record

OO 5325

SkyWest Airlines · Colorado Springs to Houston

Route: COS → IAH
Departs: 07:30
Flights: 270
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s OO 5325, 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 5325 earns an A+. More than four flights in five arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 8 points better than the national rate of 77.6%. When something does go wrong the average delay runs an hour and a half. That rests on 270 flights, with a median arrival 13 minutes early.

Set against the rest of the country, OO 5325's record is 8 points better than the US average of 77.6%. That gap is worth roughly 82 fewer late arrivals for every thousand flights.

On time

85.8%

Arrivals under 15 minutes late, of 268 completed flights

Avg delay

94 min

Across delayed arrivals only, not all flights

Cancelled

0.37%

National rate is 1.81%

1 hour+ late

9.0%

National rate is 8.1%

These figures cover 270 flights between July 2025 and June 2026. Beyond the headline rate, 9.0% of arrivals land a full hour or more behind schedule. That is the number that wrecks a connection, and it is not visible in an on-time percentage alone.

Schedule

When OO 5325 flies

OO 5325 flies COS to IAH without a single fixed slot. Its most common scheduled departure was 07:30, used on 67 of 270 flights, with 07:42 (50 flights) and 07:36 (44 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 07:3067 flights24.8%
Departs 07:4250 flights18.5%
Departs 07:3644 flights16.3%

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 07:30 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and OO 5325 runs 4 points worse at 85.8%. 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 5325 next to COS to IAH

Every carrier on COS to IAH combined arrived on time 86.2% of the time across 278 flights, so OO 5325 is about level with it. Across its whole network SkyWest Airlines managed 79.0%, which this flight beats by 7 points.

OO 5325 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
OO 5325thin sample	270	85.8%	94 min	0.37%	A+
All SkyWest Airlines on COS–IAHthin sample	278	86.2%	94 min	0.36%	A+
All carriers on COS–IAHthin sample	278	86.2%	94 min	0.36%	A+
SkyWest Airlines, whole network	852,935	79.0%	88 min	1.77%	B

Across the year

OO 5325 quarter by quarter

OO 5325 did not run the same all year. Its best quarter was Oct–Dec 2025 at 92.0% on time and its weakest Apr–Jun 2026 at 78.0%, a swing of 14 points on roughly 68 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 flights85.9%
Oct–Dec 202576 flights92.0%
Jan–Mar 202652 flights84.3%
Apr–Jun 202650 flights78.0%

Scale runs 70% to 95%. Rows with fewer than 30 flights show a dash.

By weekday, OO 5325 did best on Tuesday at 94.7% on time and worst on Thursday at 81.6%. Each day rests on about 39 flights, so a gap of 13 points is worth noticing but could still narrow in another year.

Delay causes

Why OO 5325 runs late

One category carries most of the weight here. Carrier accounts for 72% of the 3,575 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
72%
Extreme weather
15%
National Airspace System
8%
Late-arriving aircraft
5%

Extreme weather accounts for 15% of delay minutes, well above the single-digit share typical across the system. Weather delays are lumpy: they arrive as whole bad days rather than as a steady drag, so the quarterly figures above are the more useful view of the risk. The national share is 6%, so this operation carries roughly 2.4 times the usual weather exposure. The split is drawn from 3,575 delay minutes reported on OO 5325.

Cancellations are rare at 0.37%, 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

For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 9.0% of arrivals land a full hour or more behind schedule, against 8.1% nationally. A 45-minute layover does not survive that, and no amount of walking quickly changes it. Ninety minutes is the honest minimum here, and two hours if the onward flight is on a separate ticket.

The 809 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.

The same number turns up on eight other city pairs in the data, including OMA to IAH (22), IAH to SAT (14) and ABQ to SFO (9), but none flew often enough under OO 5325 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to COS to IAH only.

One caution: this is a thin sample. 270 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 5325

For a booking, OO 5325 has one of the better records a US domestic flight can show: 85.8% on time and 0.37% cancelled. That is a base rate, not a promise about any single 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