Flight number record

OO 5667

SkyWest Airlines · Tulsa to Denver

Route: TUL → DEN
Departs: 06:00
Flights: 361
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s OO 5667, 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 5667 earns an A+. Nearly every flight arrives 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 77.6%. When something does go wrong the average delay runs close to two hours. That rests on 361 flights, with a median arrival 15 minutes early.

Set against the rest of the country, OO 5667's record is 15 points better than the US average of 77.6%. That gap is worth roughly 154 fewer late arrivals for every thousand flights.

On time

93.0%

Arrivals under 15 minutes late, of 359 completed flights

Avg delay

101 min

Across delayed arrivals only, not all flights

Cancelled

0.55%

National rate is 1.81%

1 hour+ late

2.2%

National rate is 8.1%

These figures cover 361 flights between July 2025 and June 2026. The median arrival is 15 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 5667 flies

OO 5667 flies TUL to DEN without a single fixed slot. Its most common scheduled departure was 06:00, used on 208 of 361 flights, with 05:45 (113 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 06:00208 flights57.6%
Departs 05:45113 flights31.3%

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 06:00 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and OO 5667 runs 4 points better at 93.0%. 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 5667 next to TUL to DEN

Every carrier on TUL to DEN combined arrived on time 79.8% of the time across 2,430 flights, so OO 5667 is 13 points ahead of it. SkyWest flew 1,129 flights on the same city pair under all its flight numbers, including this one, and those ran 79.2% on time. Across its whole network SkyWest Airlines managed 79.0%, which this flight beats by 14 points.

OO 5667 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
OO 5667thin sample	361	93.0%	101 min	0.55%	A+
All SkyWest Airlines on TUL–DEN	1,129	79.2%	74 min	0.89%	B+
All carriers on TUL–DEN	2,430	79.8%	64 min	0.99%	B+
SkyWest Airlines, whole network	852,935	79.0%	88 min	1.77%	B

Across the year

OO 5667 quarter by quarter

Quarter by quarter OO 5667 held fairly steady: 93.4% in Jul–Sep 2025, 93.4% in Oct–Dec 2025, 93.1% in Jan–Mar 2026 and 92.2% in Apr–Jun 2026. A spread of about a point is about what a sample of this size moves on its own, so the annual figure is a fair summary.

Jul–Sep 202591 flights93.4%
Oct–Dec 202591 flights93.4%
Jan–Mar 202689 flights93.1%
Apr–Jun 202690 flights92.2%

Scale runs 85% to 100%. Rows with fewer than 30 flights show a dash.

By weekday, OO 5667 ranged from 86.5% on Monday to 98.0% on Friday. With about 52 flights behind each day, a spread of 12 points is inside normal variation, so the day you fly is not worth changing for this flight.

Delay causes

Why OO 5667 runs late

One category carries most of the weight here. Carrier accounts for 43% of the 2,525 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
43%
Late-arriving aircraft
31%
Extreme weather
23%
National Airspace System
3%

Extreme weather accounts for 23% 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 3.7 times the usual weather exposure. The split is drawn from 2,525 delay minutes reported on OO 5667.

Cancellations are rare at 0.55%, 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

Badly late arrivals are rare here: only 2.2% land an hour or more behind schedule, against 8.1% 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 541 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 two other city pairs in the data, including STL to ORD (1) and TUL to ORD (1), but none flew often enough under OO 5667 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to TUL to DEN only.

One caution: this is a thin sample. 361 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 5667

For a booking, OO 5667 has one of the better records a US domestic flight can show: 93.0% on time and 0.55% 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