Carrier route record
OOIAH→BNA
SkyWest Airlines · Houston to Nashville
- Flights
- 376
- Period
- September 2025 to August 2026
- Share of route
- 26%
- Carriers
- 2
Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with SkyWest Airlines.
SkyWest on IAH to BNA sits in the middle of the pack with a C+. About seven flights in ten arrive on time by the DOT's definition, 7 points worse than the national rate of 77.3%. The late ones land a little over an hour behind schedule. That rests on 376 flights, with a median arrival 1 minute late.
The national on-time rate over the same period is 77.3%, so SkyWest on IAH to BNA runs 7 points behind the country as a whole. Across a thousand flights that is about 74 extra late arrivals.
Key figures
On time
69.9%
Arrivals under 15 minutes late, of 372 completed flights
Avg delay
75 min
Across delayed arrivals only, not all flights
Cancelled
0.80%
National rate is 1.89%
Whole route
73.4%
Every carrier on IAH to BNA, 1,429 flights
These figures cover 376 flights between September 2025 and August 2026. Beyond the headline rate, 11.3% 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.
Carrier by carrier
SkyWest against every carrier on IAH to BNA
SkyWest flew 376 of the 1,429 flights on IAH to BNA, about 26% of it. Its 69.9% on time is 4 points worse than the route as a whole, which runs 73.4%. Ranked by on-time rate it is last of two carriers on the route, where the range runs from United at 74.7% to SkyWest at 69.9%.
Only one carrier clears this site's 365-flight floor here, so there is no comparison to draw. The table below is the full picture.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| United Airlines | 1,053 | 74.7% | 57 min | 0.47% | C+ |
| SkyWest Airlines (this page) | 376 | 69.9% | 75 min | 0.80% | C+ |
Flight by flight
SkyWest flight numbers on IAH to BNA
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.
Departure window
When SkyWest runs best on this route
Departure time is the single lever a traveller controls, and it moves the odds more than most people expect. Each bar below is the on-time rate for flights scheduled to leave inside that window, across 376 flights.
There are not enough flights in each departure window to split SkyWest's IAH to BNA record by time of day without the percentages moving on noise. The headline rate of 69.9% is the reliable figure here.
Across the year
SkyWest on IAH to BNA through the year
- Jul–Sep 202530 flights90.0%
- Oct–Dec 2025108 flights66.7%
- Jan–Mar 202693 flights72.2%
- Apr–Jun 2026101 flights64.4%
- Jul–Sep 202644 flights72.1%
Scale runs 55% to 95%.
Monthly volumes are too low here to break the year into twelve reliable readings. What the twelve-month total says is 69.9% on time across 376 flights.
SkyWest on IAH to BNA did not run the same all year. Its best quarter was Jul–Sep 2025 at 90.0% on time and its weakest Apr–Jun 2026 at 64.4%, a swing of 26 points on roughly 75 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.
Across the week, Wednesday is the strongest day at 78.0% on time and Saturday the weakest at 64.4%, a spread of 14 points.
Arrival by arrival
How late SkyWest on IAH to BNA runs when it is late
The 112 late arrivals split 37 under half an hour, 33 between 30 and 60 minutes, and 42 an hour or more.
- 15+ min early46 flights12.4%
- Within 15 min214 flights57.5%
- 15–29 min late37 flights9.9%
- 30–59 min late33 flights8.9%
- 1–2 hours late26 flights7.0%
- 2+ hours late16 flights4.3%
Scale runs 0% to 100%.
Share of 372 completed flights by arrival against schedule.
Time lost at the gate mostly stays lost. Of 95 departures that left 15 minutes late or more, only 10 made it up before arrival. In the other direction, 27 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 BNA.
The worst days
Worst days for SkyWest on IAH to BNA
The latest arrival of the period was on 17 May 2026, 13 hours 35 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The five worst days are spread across May, April, November, October and March, with no single month standing out.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 17 May 2026 | 13 hours 35 minutes | Carrier |
| 28 April 2026 | 12 hours 37 minutes | Extreme weather |
| 9 November 2025 | 4 hours 39 minutes | National Airspace System |
| 7 October 2025 | 3 hours 51 minutes | National Airspace System |
| 19 March 2026 | 3 hours 40 minutes | Carrier |
Delay causes
Why SkyWest runs late on this route
Carrier accounts for 44% of the 8,347 delay minutes carriers reported here, and the remaining four split what is left.
- 44%Carrier
- 21%National Airspace System
- 20%Late-arriving aircraft
- 15%Extreme weather
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 monthly strip above is the more useful view of the risk. The national share is 6%, so this operation carries roughly 2.6 times the usual weather exposure. The split is drawn from 8,347 reported delay minutes.
The largest share of delay minutes, 44%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 3,645 of the 8,347 delay minutes reported here.
Cancellations are rare at 0.80%, 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 stage length
What a delay here costs
11.3% 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 657 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 return leg is a different operation and performs like one: it runs 86.9% on time across 377 flights, 17 points above this direction. Departure banks, aircraft rotations and the congestion at each end all differ, so scoring the two directions together would average away a real 17 points of difference.
One caution: this is a thin sample. 376 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 SkyWest on IAH to BNA
Put together: treat all of this as provisional. 376 flights over twelve months is enough to clear this site's floor and not enough to be confident to better than a couple of points. The 69.9% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 372 completed flights over 12 months sit behind that.
Related
Where to go next
- IAH to BNA, every carrier
- SkyWest on BNA to IAH, the return leg
- United Airlines on IAH to BNA74.7%
- SkyWest Airlines network-wide record
- George Bush Intercontinental (IAH) delay statistics
- Nashville International (BNA) delay statistics
- How often a connection fails at the major US hubs
- How late do late flights run? The long tail of US delays
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.