Flight number record
OO 4743
SkyWest Airlines · Amarillo to Denver
- Route
- AMA → DEN
- Departs
- 17:20
- Flights
- 316
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s OO 4743, 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 4743 sits in the middle of the pack with a C−. About seven flights in ten arrive on time by the DOT's definition, 9 points worse than the national rate of 77.3%. The late ones land an hour and a half behind schedule. That rests on 316 flights, with a median arrival 2 minutes late.
The national on-time rate over the same period is 77.3%, so OO 4743 runs 9 points behind the country as a whole. Across a thousand flights that is about 88 extra late arrivals.
Key figures
On time
68.5%
Arrivals under 15 minutes late, of 305 completed flights
Avg delay
85 min
Across delayed arrivals only, not all flights
Cancelled
3.48%
National rate is 1.89%
1 hour+ late
14.4%
National rate is 8.3%
These figures cover 316 flights between September 2025 and August 2026. Beyond the headline rate, 14.4% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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 4743 flies
OO 4743 flies AMA to DEN without a single fixed slot. Its most common scheduled departure was 17:20, used on 69 of 316 flights, with 17:30 (52 flights) and 17:35 (50 flights) next.
- Departs 17:2069 flights21.8%
- Departs 17:3052 flights16.5%
- Departs 17:3550 flights15.8%
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 17:20 departure sits in the 5pm–8pm window. Across every US flight scheduled in that window the on-time rate is 68.0%, and OO 4743 runs level with that at 68.5%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.
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 4743 next to AMA to DEN
Every carrier on AMA to DEN combined arrived on time 80.2% of the time across 682 flights, so OO 4743 is 12 points behind it. Across its whole network SkyWest Airlines managed 78.7%, which this flight trails by 10 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| OO 4743thin sample | 316 | 68.5% | 85 min | 3.48% | C− |
| All SkyWest Airlines on AMA–DEN | 682 | 80.2% | 93 min | 2.20% | B |
| All carriers on AMA–DEN | 682 | 80.2% | 93 min | 2.20% | B |
| SkyWest Airlines, whole network | 855,406 | 78.7% | 88 min | 1.79% | B |
Across the year
OO 4743 quarter by quarter
OO 4743 did not run the same all year. Its best quarter was Jan–Mar 2026 at 84.9% on time and its weakest Jul–Sep 2026 at 52.9%, a swing of 32 points on roughly 79 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 202526 flights—
- Oct–Dec 202582 flights71.8%
- Jan–Mar 202678 flights84.9%
- Apr–Jun 202677 flights64.9%
- Jul–Sep 202653 flights52.9%
Scale runs 45% to 90%. Rows with fewer than 30 flights show a dash.
By weekday, OO 4743 ranged from 60.8% on Wednesday to 71.4% on Thursday. With about 45 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 4743 runs when it is late
OO 4743 often beats the schedule: 79 of 305 completed flights, 26%, arrived 15 minutes or more early. The 96 late arrivals split 23 under half an hour, 29 between 30 and 60 minutes, and 44 an hour or more.
- 15+ min early79 flights25.9%
- Within 15 min130 flights42.6%
- 15–29 min late23 flights7.5%
- 30–59 min late29 flights9.5%
- 1–2 hours late22 flights7.2%
- 2+ hours late22 flights7.2%
Scale runs 0% to 100%.
Share of 305 completed flights by arrival against schedule.
12 of 84 late departures made up the time and arrived on time, 14% of them. In the other direction, 24 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 DEN.
The worst days
Worst days for OO 4743
The latest arrival of the period was on 20 February 2026, 6 hours 9 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The five worst days are spread across February, July, December and August, with no single month standing out.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 20 February 2026 | 6 hours 9 minutes | Carrier |
| 6 July 2026 | 5 hours 25 minutes | Carrier |
| 19 December 2025 | 5 hours 8 minutes | Extreme weather |
| 21 August 2026 | 4 hours 19 minutes | National Airspace System |
| 23 August 2026 | 4 hours 17 minutes | National Airspace System |
Delay causes
Why OO 4743 runs late
National Airspace System accounts for 49% of the 8,114 delay minutes carriers reported here, and the remaining four split what is left.
- 49%National Airspace System
- 21%Carrier
- 19%Late-arriving aircraft
- 12%Extreme weather
Extreme weather accounts for 12% 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 2.0 times the usual weather exposure. The split is drawn from 8,114 delay minutes reported on OO 4743.
Cancellations run at 3.48%, against 1.89% nationally. That is about one flight in 30 cancelled outright. A cancelled flight is invisible in every on-time figure on this page, so the punctuality numbers above describe only the flights that actually operated.
Connections and routes
What a delay on this flight costs
14.4% of arrivals land a full hour or more behind schedule, against 8.3% nationally. Ninety minutes is the honest minimum for a connection here, and two hours if the onward flight is on a separate ticket.
The same number turns up on eight other city pairs in the data, including CHA to DEN (7), IAH to PWM (5) and LIT to ORD (4), but none flew often enough under OO 4743 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to AMA to DEN only.
One caution: this is a thin sample. 316 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 4743
For a booking, the cancellation rate is the figure to plan around on OO 4743: 3.48% of its 316 scheduled flights did not operate. A late arrival costs an hour and a half, but a cancellation costs the day, so leave a later option open.
Related
Where to go next
- 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
- What a cancellation rate actually tells you (and what it hides)
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.