Carrier route record
UAAUS→EWR
United Airlines · Austin to Newark
- Flights
- 1,737
- 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 AUS to EWR lands a B, about a point 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 an hour and a half on average. That is a workable record, not a spotless one. That rests on 1,737 flights, with a median arrival 7 minutes early.
The US average over the same twelve months is 77.6%, so there is little to separate United on AUS to EWR from the country as a whole. The variation that matters here is internal: which carrier, and what time of day.
Key figures
On time
78.8%
Arrivals under 15 minutes late, of 1,696 completed flights
Avg delay
97 min
Across delayed arrivals only, not all flights
Cancelled
1.96%
National rate is 1.81%
Whole route
75.0%
Every carrier on AUS to EWR, 2,104 flights
These figures cover 1,737 flights between July 2025 and June 2026. Beyond the headline rate, 10.4% 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 AUS to EWR
United flew 1,737 of the 2,104 flights on AUS to EWR, most of the route. Its 78.8% on time is 4 points better than the route as a whole, which runs 75.0%. Ranked by on-time rate it is first of three carriers on the route, where the range runs from United at 78.8% to Spirit at 55.4%. 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 |
|---|---|---|---|---|---|
| United Airlines (this page) | 1,737 | 78.8% | 97 min | 1.96% | B |
| Republic Airwaysthin sample | 19 | 73.7% | 59 min | 0.00% | C+ |
| Spirit Airlinesthin sample | 348 | 55.4% | 88 min | 6.32% | D− |
Flight by flight
United flight numbers on AUS to EWR
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 32 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–8am433 flights92.7%
- 8am–11am340 flights90.7%
- 11am–2pm215 flights80.2%
- 2pm–5pm388 flights60.8%
- 5pm–8pm361 flights69.1%
- 8pm–5am—
Scale runs 50% to 100%. Rows with fewer than 30 flights show a dash.
Book the early departure. Flights leaving between 5am–8am arrive on time 92.7% of the time, against 60.8% for the afternoon window. That is 32 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 433 flights scheduled in it.
Across the year
United on AUS to EWR through the year
July is the worst month at 66.4% on time, 27 points below January, the best at 93.1%. 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 85.2% on time and Sunday the weakest at 70.2%. 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. National Airspace System accounts for 50% of the 35,000 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.
- 50%National Airspace System
- 25%Carrier
- 25%Late-arriving aircraft
- 0%Extreme weather
50% 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 17,000 minutes out of 35,000, against a national NAS share of 21%. The split is drawn from 34,884 reported delay minutes.
Cancellations sit at 1.96% against a national 1.81%, which is ordinary. Diversions add another 0.40%.
Connections and stage length
What a delay here costs
For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 10.4% of arrivals land a full hour or more behind schedule, against 8.1% nationally. A 45-minute layover does not survive that, and no amount of walking quickly changes it. Ninety minutes is the honest minimum here, and two hours if the onward flight is on a separate ticket.
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 79.6% on time across 1,739 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 1,737 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 AUS to EWR
Put together: the calendar is the biggest lever here, not the carrier or the hour. January runs 93.1% on time and July 66.4%, a swing of 27 points. If the dates move at all, move them out of July before you think about anything else. 1,696 completed flights over 12 months sit behind that.
Related
Where to go next
- AUS to EWR, every carrier
- United on EWR to AUS, the return leg
- Spirit Airlines on AUS to EWR55.4%
- United Airlines network-wide record
- Austin-Bergstrom International (AUS) delay statistics
- Newark Liberty International (EWR) delay statistics
- The best time of day to fly, according to 7.04 million flight records
- How often a connection fails at the major US hubs
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.