Carrier route record
UAOMA→IAH
United Airlines · Omaha to Houston
- Flights
- 687
- Period
- September 2025 to August 2026
- Share of route
- 85%
- Carriers
- 2
Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with United Airlines.
United on OMA to IAH 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 12 points better than the national rate of 77.3%. When something does go wrong the average delay runs a little over an hour. That rests on 687 flights, with a median arrival 12 minutes early.
Set against the rest of the country, United's OMA to IAH record is 12 points better than the US average of 77.3%. That gap is worth roughly 123 fewer late arrivals for every thousand flights.
Key figures
On time
89.6%
Arrivals under 15 minutes late, of 683 completed flights
Avg delay
71 min
Across delayed arrivals only, not all flights
Cancelled
0.58%
National rate is 1.89%
Whole route
87.3%
Every carrier on OMA to IAH, 809 flights
These figures cover 687 flights between September 2025 and August 2026. The median arrival is 12 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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Carrier by carrier
United against every carrier on OMA to IAH
United flew 687 of the 809 flights on OMA to IAH, most of the route. Its 89.6% on time is 2 points better than the route as a whole, which runs 87.3%. Ranked by on-time rate it is first of two carriers on the route, where the range runs from United at 89.6% to SkyWest at 74.4%. One of those carriers flew fewer than 365 flights here, so treat their positions as rough.
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 (this page) | 687 | 89.6% | 71 min | 0.58% | A+ |
| SkyWest Airlinesthin sample | 122 | 74.4% | 74 min | 0.00% | C+ |
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Departure window
When United runs best on this route
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 14 points, against half a point between the best and worst carrier.
- 5am–8am349 flights91.9%
- 8am–11am282 flights88.6%
- 11am–2pm—
- 2pm–5pm32 flights78.1%
- 5pm–8pm24 flights—
- 8pm–5am—
Scale runs 70% to 95%. Rows with fewer than 30 flights show a dash.
Book the early departure. Flights leaving between 5am–8am arrive on time 91.9% of the time, against 78.1% for the afternoon window. That is 14 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 5am–8am window is the busiest, with 349 flights scheduled in it.
Across the year
United on OMA to IAH through the year
December is the weak month at 80.6% on time, against 94.7% in November. Winter delays cluster: a single storm system can account for most of a month's shortfall, so an average December hides both very good weeks and genuinely unflyable days. January was the busiest month here, with 62 flights.
Across the week, Friday is the strongest day at 94.9% on time and Monday the weakest at 84.5%, a spread of 10 points.
Arrival by arrival
How late United on OMA to IAH runs when it is late
United on OMA to IAH often beats the schedule: 303 of 683 completed flights, 44%, arrived 15 minutes or more early. The 71 late arrivals split 27 under half an hour, 23 between 30 and 60 minutes, and 21 an hour or more.
- 15+ min early303 flights44.4%
- Within 15 min309 flights45.2%
- 15–29 min late27 flights4.0%
- 30–59 min late23 flights3.4%
- 1–2 hours late11 flights1.6%
- 2+ hours late10 flights1.5%
Scale runs 0% to 100%.
Share of 683 completed flights by arrival against schedule.
18 of 65 late departures made up the time and arrived on time, 28% of them. 24 flights left on time and still arrived late.
The worst days
Worst days for United on OMA to IAH
The latest arrival of the period was on 28 July 2026, 8 hours 11 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. On three of the five worst days the largest share was filed as carrier-caused (crew, maintenance, fuelling, baggage).
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 28 July 2026 | 8 hours 11 minutes | Late-arriving aircraft |
| 27 May 2026 | 5 hours 49 minutes | Carrier |
| 30 July 2026 | 4 hours 28 minutes | Carrier |
| 16 March 2026 | 3 hours 45 minutes | National Airspace System |
| 23 February 2026 | 3 hours 43 minutes | Carrier |
Delay causes
Why United runs late on this route
Carrier accounts for 44% of the 5,010 delay minutes carriers reported here, and the remaining four split what is left.
- 44%Carrier
- 33%National Airspace System
- 16%Late-arriving aircraft
- 8%Extreme weather
The largest share of delay minutes, 44%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 2,205 of the 5,010 delay minutes reported here. The split is drawn from 5,010 reported delay minutes.
33% of delay minutes are charged to the National Airspace System: air traffic volume, runway configuration, ground stops. No carrier can price its way out of that, which is why airport choice moves the number here more than carrier choice does. That is 1,640 minutes out of 5,010, against a national NAS share of 21%.
Cancellations are rare at 0.58%, 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
Badly late arrivals are rare here: only 3.1% land an hour or more behind schedule, against 8.3% 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 781 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 77.4% on time across 687 flights, 12 points below 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 12 points of difference.
One caution: this is a thin sample. 687 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 United on OMA to IAH
Put together: treat all of this as provisional. 687 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 89.6% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 683 completed flights over 12 months sit behind that.
Related
Where to go next
- OMA to IAH, every carrier
- United on IAH to OMA, the return leg
- SkyWest Airlines on OMA to IAH74.4%
- United Airlines network-wide record
- Eppley Airfield (OMA) delay statistics
- George Bush Intercontinental (IAH) delay statistics
- The best time of day to fly, according to 7.05 million flight records
- Worst months to fly in the US, ranked by the data
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.