Carrier route record
UAIAH→OMA
United Airlines · Houston to Omaha
- 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 IAH to OMA lands a B+, level with the national rate of 77.3%. Roughly one flight in four arrives 15 minutes late or worse, and those flights are late by about an hour on average. That rests on 687 flights, with a median arrival 3 minutes early.
The US average over the same twelve months is 77.3%, so there is little to separate United on IAH to OMA from the country as a whole. The variation that matters here is internal: which carrier, and what time of day.
Key figures
On time
77.4%
Arrivals under 15 minutes late, of 685 completed flights
Avg delay
57 min
Across delayed arrivals only, not all flights
Cancelled
0.15%
National rate is 1.89%
Whole route
77.8%
Every carrier on IAH to OMA, 810 flights
These figures cover 687 flights between September 2025 and August 2026. The median arrival is 3 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 IAH to OMA
United flew 687 of the 810 flights on IAH to OMA, most of the route. Its 77.4% on time is about level with the route as a whole at 77.8%. Ranked by on-time rate it is last of two carriers on the route, where the range runs from SkyWest at 80.5% to United at 77.4%. 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 |
|---|---|---|---|---|---|
| SkyWest Airlinesthin sample | 123 | 80.5% | 70 min | 0.00% | B+ |
| United Airlines (this page) | 687 | 77.4% | 57 min | 0.15% | B+ |
Flight by flight
United flight numbers on IAH to OMA
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 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 15 points, against half a point between the best and worst carrier.
- 5am–8am—
- 8am–11am—
- 11am–2pm56 flights87.5%
- 2pm–5pm156 flights86.5%
- 5pm–8pm126 flights74.6%
- 8pm–5am349 flights72.7%
Scale runs 65% to 95%. Rows with fewer than 30 flights show a dash.
The best window here is not the first bank but the 11am–2pm slot at 87.5% on time, ahead of 8pm–5am at 72.7%. Where the curve peaks mid-day rather than at dawn, the constraint is usually congestion at one end rather than the aircraft's own rotation. The 8pm–5am window is the busiest, with 349 flights scheduled in it.
Across the year
United on IAH to OMA through the year
June is the worst month at 58.2% on time, 29 points below February, the best at 87.5%. Summer afternoon convection and peak-season schedules land on the same weeks every year, so this is a pattern you can book around rather than a run of bad luck. January was the busiest month here, with 62 flights.
Across the week, Friday is the strongest day at 82.5% on time and Sunday the weakest at 68.3%, a spread of 14 points.
Arrival by arrival
How late United on IAH to OMA runs when it is late
The 155 late arrivals split 51 under half an hour, 53 between 30 and 60 minutes, and 51 an hour or more.
- 15+ min early147 flights21.5%
- Within 15 min383 flights55.9%
- 15–29 min late51 flights7.4%
- 30–59 min late53 flights7.7%
- 1–2 hours late34 flights5.0%
- 2+ hours late17 flights2.5%
Scale runs 0% to 100%.
Share of 685 completed flights by arrival against schedule.
25 of 145 late departures made up the time and arrived on time, 17% of them. In the other direction, 35 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 OMA.
The worst days
Worst days for United on IAH to OMA
The latest arrival of the period was on 19 June 2026, 4 hours 43 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. The same cause led on three of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 19 June 2026 | 4 hours 43 minutes | Late-arriving aircraft |
| 12 March 2026 | 4 hours 12 minutes | Late-arriving aircraft |
| 18 July 2026 | 3 hours 43 minutes | Carrier |
| 29 July 2026 | 3 hours 29 minutes | Carrier |
| 7 June 2026 | 3 hours 25 minutes | Late-arriving aircraft |
Delay causes
Why United runs late on this route
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 8,832 reported delay minutes.
- 42%Late-arriving aircraft
- 40%Carrier
- 16%National Airspace System
- 2%Extreme weather
42% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 8,832 reported delay minutes here, that single category outweighs weather by 19 to one. The split is drawn from 8,832 reported delay minutes.
The largest share of delay minutes, 40%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 3,534 of the 8,832 delay minutes reported here.
Cancellations are rare at 0.15%, 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
7.4% 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 an hour, which a normal layover absorbs.
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 89.6% on time across 687 flights, 12 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 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 IAH to OMA
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 77.4% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 685 completed flights over 12 months sit behind that.
Related
Where to go next
- IAH to OMA, every carrier
- United on OMA to IAH, the return leg
- SkyWest Airlines on IAH to OMA80.5%
- United Airlines network-wide record
- George Bush Intercontinental (IAH) delay statistics
- Eppley Airfield (OMA) delay statistics
- Why the first flight of the morning is statistically safest
- The best time of day to fly, according to 7.05 million flight records
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.