Flight number record
OO 5758
SkyWest Airlines · Houston to Memphis
- Route
- IAH → MEM
- Departs
- 11:55
- Flights
- 250
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s OO 5758, 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 5758 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 10 points better than the national rate of 77.3%. When something does go wrong the average delay runs an hour and a half. That rests on 250 flights, with a median arrival 6 minutes early.
Set against the rest of the country, OO 5758's record is 10 points better than the US average of 77.3%. That gap is worth roughly 103 fewer late arrivals for every thousand flights.
Key figures
On time
87.6%
Arrivals under 15 minutes late, of 250 completed flights
Avg delay
85 min
Across delayed arrivals only, not all flights
Cancelled
0.00%
National rate is 1.89%
1 hour+ late
5.2%
National rate is 8.3%
These figures cover 250 flights between September 2025 and August 2026. The median arrival is 6 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.
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 5758 flies
OO 5758 flies IAH to MEM without a single fixed slot. Its most common scheduled departure was 11:55, used on 92 of 250 flights, with 12:15 (60 flights) and 12:10 (46 flights) next.
- Departs 11:5592 flights36.8%
- Departs 12:1560 flights24.0%
- Departs 12:1046 flights18.4%
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 11:55 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.3%, and OO 5758 runs 9 points better at 87.6%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.
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 5758 next to IAH to MEM
Every carrier on IAH to MEM combined arrived on time 80.6% of the time across 1,075 flights, so OO 5758 is 7 points ahead of it. SkyWest flew 719 flights on the same city pair under all its flight numbers, including this one, and those ran 84.7% on time. Across its whole network SkyWest Airlines managed 78.7%, which this flight beats by 9 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| OO 5758thin sample | 250 | 87.6% | 85 min | 0.00% | A+ |
| All SkyWest Airlines on IAH–MEM | 719 | 84.7% | 68 min | 0.97% | B+ |
| All carriers on IAH–MEM | 1,075 | 80.6% | 59 min | 1.02% | B |
| SkyWest Airlines, whole network | 855,406 | 78.7% | 88 min | 1.79% | B |
Across the year
OO 5758 quarter by quarter
OO 5758 did not run the same all year. Its best quarter was Oct–Dec 2025 at 91.3% on time and its weakest Apr–Jun 2026 at 75.8%, a swing of 16 points on roughly 83 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 202529 flights—
- Oct–Dec 202592 flights91.3%
- Jan–Mar 20265 flights—
- Apr–Jun 202662 flights75.8%
- Jul–Sep 202662 flights87.1%
Scale runs 65% to 95%. Rows with fewer than 30 flights show a dash.
By weekday, OO 5758 did best on Thursday at 94.4% on time and worst on Monday at 78.4%. Each day rests on about 36 flights, so a gap of 16 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late OO 5758 runs when it is late
The 31 late arrivals split 11 under half an hour, 7 between 30 and 60 minutes, and 13 an hour or more.
- 15+ min early42 flights16.8%
- Within 15 min177 flights70.8%
- 15–29 min late11 flights4.4%
- 30–59 min late7 flights2.8%
- 1–2 hours late5 flights2.0%
- 2+ hours late8 flights3.2%
Scale runs 0% to 100%.
Share of 250 completed flights by arrival against schedule.
4 of 27 late departures made up the time and arrived on time, 15% of them. 8 flights left on time and still arrived late.
The worst days
Worst days for OO 5758
The latest arrival of the period was on 24 November 2025, 4 hours 39 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on three of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 24 November 2025 | 4 hours 39 minutes | Carrier |
| 18 December 2025 | 4 hours 36 minutes | Carrier |
| 19 May 2026 | 3 hours 41 minutes | Late-arriving aircraft |
| 26 July 2026 | 3 hours 31 minutes | Carrier |
| 29 June 2026 | 3 hours 24 minutes | Extreme weather |
Delay causes
Why OO 5758 runs late
Carrier accounts for 48% of the 2,630 delay minutes carriers reported here, and the remaining four split what is left.
- 48%Carrier
- 22%Late-arriving aircraft
- 15%Extreme weather
- 15%National Airspace System
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 2.5 times the usual weather exposure. The split is drawn from 2,630 delay minutes reported on OO 5758.
Cancellations are rare at 0.00%, below the national 1.89% and low enough to earn the plus on the grade. Almost no flights are called off; the risk here is arriving late, not not arriving.
Connections and routes
What a delay on this flight costs
5.2% 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 an hour and a half, which a normal layover absorbs.
The same number turns up on one other city pair in the data, including TUL to IAH (126), but none flew often enough under OO 5758 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to IAH to MEM only.
One caution: this is a thin sample. 250 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 5758
For a booking, OO 5758 has one of the better records a US domestic flight can show: 87.6% on time and 0.00% cancelled. That is a base rate, not a promise about any single day.
Related
Where to go next
- IAH to MEM, every carrier and departure
- MEM to IAH, the return direction
- United Airlines 1794 on the same route72.5%
- George Bush Intercontinental (IAH) delay statistics
- Memphis International (MEM) 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
- Worst months to fly in the US, ranked by the data
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.