Flight number record

OO 5839

SkyWest Airlines · Bakersfield to Denver

Route: BFL → DEN
Departs: 05:05
Flights: 261
Period: September 2025 to August 2026

Historical statistics for September 2025 to August 2026, not live status. For today’s OO 5839, 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 5839 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 2.3 hours. That rests on 261 flights, with a median arrival 14 minutes early.

Set against the rest of the country, OO 5839's record is 15 points better than the US average of 77.3%. That gap is worth roughly 150 fewer late arrivals for every thousand flights.

On time

92.3%

Arrivals under 15 minutes late, of 259 completed flights

Avg delay

138 min

Across delayed arrivals only, not all flights

Cancelled

0.38%

National rate is 1.89%

1 hour+ late

5.4%

National rate is 8.3%

These figures cover 261 flights between September 2025 and August 2026. The median arrival is 14 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 5839 flies

OO 5839 flies BFL to DEN without a single fixed slot. Its most common scheduled departure was 05:05, used on 132 of 261 flights, with 05:10 (55 flights) and 05:15 (53 flights) next.

Departs 05:05132 flights50.6%
Departs 05:1055 flights21.1%
Departs 05:1553 flights20.3%

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 05:05 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and OO 5839 runs 3 points better at 92.3%. 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 5839 next to BFL to DEN

Every carrier on BFL to DEN combined arrived on time 86.4% of the time across 728 flights, so OO 5839 is 6 points ahead of it. SkyWest flew 627 flights on the same city pair under all its flight numbers, including this one, and those ran 85.2% on time. Across its whole network SkyWest Airlines managed 78.7%, which this flight beats by 14 points.

OO 5839 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
OO 5839thin sample	261	92.3%	138 min	0.38%	A+
All SkyWest Airlines on BFL–DEN	627	85.2%	79 min	0.32%	A+
All carriers on BFL–DEN	728	86.4%	82 min	0.41%	A+
SkyWest Airlines, whole network	855,406	78.7%	88 min	1.79%	B

Across the year

OO 5839 quarter by quarter

OO 5839 did not run the same all year. Its best quarter was Jul–Sep 2025 at 100.0% on time and its weakest Jan–Mar 2026 at 87.5%, a swing of 13 points on roughly 65 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 flights100.0%
Oct–Dec 202592 flights94.5%
Jan–Mar 202689 flights87.5%
Apr–Jun 202650 flights92.0%

Scale runs 80% to 100%.

By weekday, OO 5839 did best on Friday at 100.0% on time and worst on Saturday at 80.6%. Each day rests on about 37 flights, so a gap of 19 points is worth noticing but could still narrow in another year.

Arrival by arrival

How late OO 5839 runs when it is late

OO 5839 often beats the schedule: 127 of 259 completed flights, 49%, arrived 15 minutes or more early. When OO 5839 is late it tends to be very late: 14 of its 20 late arrivals were an hour or more behind, and 6 were two hours or more.

15+ min early127 flights49.0%
Within 15 min112 flights43.2%
15–29 min late4 flights1.5%
30–59 min late2 flights0.8%
1–2 hours late8 flights3.1%
2+ hours late6 flights2.3%

Scale runs 0% to 100%.

Share of 259 completed flights by arrival against schedule.

Only 17 of 259 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 5839

The latest arrival of the period was on 13 December 2025, 9 hours 12 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. The five worst days are spread across December, January, March and May, with no single month standing out.

The latest arrivals of OO 5839 in the period
Date	Arrived late by	Largest filed cause
13 December 2025	9 hours 12 minutes	Late-arriving aircraft
20 January 2026	8 hours 20 minutes	Extreme weather
16 March 2026	5 hours 24 minutes	Carrier
16 May 2026	4 hours 26 minutes	Late-arriving aircraft
3 December 2025	3 hours 47 minutes	Extreme weather

Delay causes

Why OO 5839 runs late

Carriers report a reason for every delay minute they cause, in five DOT categories. The split below is by minutes, not by number of flights, so a handful of very long weather delays weighs as much as many short ones. It covers 2,759 reported delay minutes.

Carrier
33%
Extreme weather
33%
Late-arriving aircraft
30%
National Airspace System
4%

Extreme weather accounts for 33% 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 5.4 times the usual weather exposure. The split is drawn from 2,759 delay minutes reported on OO 5839.

Cancellations are rare at 0.38%, 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

5.4% 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 2.3 hours, which a normal layover absorbs.

The 845 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 two other city pairs in the data, including ORD to GRB (58) and XNA to ORD (1), but none flew often enough under OO 5839 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to BFL to DEN only.

One caution: this is a thin sample. 261 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 5839

For a booking, OO 5839 has one of the better records a US domestic flight can show: 92.3% on time and 0.38% 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, September 2025 to August 2026. Last updated 22 October 2026; recomputed monthly. How this data is collected.

Key figures