Carrier route record
UAEWR→AUS
United Airlines · Newark to Austin
- Flights
- 1,739
- Period
- July 2025 to June 2026
- Share of route
- 83%
- Carriers
- 3
Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with United Airlines.
United on EWR to AUS lands a B, 2 points better than the national rate of 77.6%. About one flight in five arrives 15 minutes late or worse, and those flights are late by a little over an hour on average. That is a workable record, not a spotless one. That rests on 1,739 flights, with a median arrival 10 minutes early.
The US average over the same twelve months is 77.6%, so there is little to separate United on EWR to AUS from the country as a whole. The variation that matters here is internal: which carrier, and what time of day.
Key figures
On time
79.6%
Arrivals under 15 minutes late, of 1,707 completed flights
Avg delay
77 min
Across delayed arrivals only, not all flights
Cancelled
1.73%
National rate is 1.81%
Whole route
78.2%
Every carrier on EWR to AUS, 2,107 flights
These figures cover 1,739 flights between July 2025 and June 2026. Beyond the headline rate, 8.6% of arrivals land a full hour or more behind schedule. That is the number that wrecks a connection, and it is not visible in an on-time percentage alone.
Carrier by carrier
United against every carrier on EWR to AUS
United flew 1,739 of the 2,107 flights on EWR to AUS, most of the route. Its 79.6% on time is about level with the route as a whole at 78.2%. Ranked by on-time rate it is number two of three carriers on the route, where the range runs from Republic at 88.2% to Spirit at 70.3%. Two 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 |
|---|---|---|---|---|---|
| Republic Airwaysthin sample | 19 | 88.2% | 29 min | 0.00% | A+ |
| United Airlines (this page) | 1,739 | 79.6% | 77 min | 1.73% | B |
| Spirit Airlinesthin sample | 349 | 70.3% | 82 min | 6.02% | C− |
Flight by flight
United flight numbers on EWR to AUS
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 23 points, against half a point between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.
- 5am–8am336 flights94.6%
- 8am–11am90 flights75.6%
- 11am–2pm370 flights84.1%
- 2pm–5pm292 flights73.7%
- 5pm–8pm424 flights72.0%
- 8pm–5am227 flights73.4%
Scale runs 65% to 100%. Rows with fewer than 30 flights show a dash.
Book the early departure. Flights leaving between 5am–8am arrive on time 94.6% of the time, against 72.0% for the evening window. That is 23 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 5pm–8pm window is the busiest, with 424 flights scheduled in it.
Across the year
United on EWR to AUS through the year
July is the worst month at 61.1% on time, 28 points below March, the best at 89.3%. 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. November was the busiest month here, with 168 flights.
Across the week, Tuesday is the strongest day at 86.0% on time and Sunday the weakest at 70.9%. 15 points is a smaller lever than departure hour, but it is free.
Delay causes
Why United runs late on this route
One category carries most of the weight here. Late-arriving aircraft accounts for 47% of the 27,000 delay minutes carriers reported, and the remaining four split what is left. The split is by minutes rather than by flights, so a few very long delays count for as much as many short ones.
- 47%Late-arriving aircraft
- 24%Carrier
- 24%National Airspace System
- 6%Extreme weather
47% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. That is a cascade, and cascades start small and grow through the day. Across 27,000 reported delay minutes here, that single category outweighs weather by 8 to one. It is the strongest argument for booking the first departure of the morning, when the aircraft has been sitting at the gate overnight with nothing to inherit. The split is drawn from 26,684 reported delay minutes.
The practical consequence: the 5am–8am departure is the one that starts clean. Its aircraft has no earlier leg to be late from, which is exactly why that window shows 94.6% on time here.
Cancellations sit at 1.73% against a national 1.81%, which is ordinary. Diversions add another 0.12%.
Connections and stage length
What a delay here costs
8.6% of arrivals land an hour or more late, close to the national 8.1%. That is the figure that decides a connection, and it says a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last a little over an hour, which a normal layover absorbs.
At 1,504 miles this is transcontinental flying, and long routes get a quiet structural advantage. Scheduled block time on a flight this length carries more padding in absolute minutes, so a twenty-minute late departure often still becomes an on-time arrival. Read the on-time rate here as slightly flattering next to a short-haul route with the same operational quality.
The return leg runs 78.8% on time across 1,737 flights, within about a point of this direction. The two legs are scored separately because they usually differ; on this city pair they happen not to.
The sample behind these figures is 1,739 flights, enough that the headline rate is stable to within roughly a point. The hour-block and month splits divide that further, so read the thinner bars with more caution than the headline.
What to do with this
Booking United on EWR to AUS
Put together: the calendar is the biggest lever here, not the carrier or the hour. March runs 89.3% on time and July 61.1%, a swing of 28 points. If the dates move at all, move them out of July before you think about anything else. 1,707 completed flights over 12 months sit behind that.
Related
Where to go next
- EWR to AUS, every carrier
- United on AUS to EWR, the return leg
- Spirit Airlines on EWR to AUS70.3%
- United Airlines network-wide record
- Newark Liberty International (EWR) delay statistics
- Austin-Bergstrom International (AUS) delay statistics
- Why the first flight of the morning is statistically safest
- The best time of day to fly, according to 7.04 million flight records
Source: US DOT Bureau of Transportation Statistics, on-time performance data, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.