Route reliability record
EWR→AUS
Newark to Austin
- Flights
- 2,056
- Period
- September 2025 to August 2026
- Distance
- 1,504 mi
- Carriers
- 3
This route lands a B−, about a point better than the national rate of 77.3%. 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 rests on 2,056 EWR to AUS flights, with a median arrival 9 minutes early.
Best time to fly EWR to AUS: a 5am–8am departure, ideally on a Tuesday. Flights in that window arrived on time 92.3% of the time and Tuesday flights 86.6%, against 78.4% for the route overall.
The US average over the same twelve months is 77.3%, so there is little to separate this route from the country as a whole. The variation that matters here is internal: which carrier, and what time of day.
Key figures
On time
78.4%
Arrivals under 15 minutes late, of 1,987 completed flights
Avg delay
76 min
Across delayed arrivals only, not all flights
Cancelled
3.11%
National rate is 1.89%
Best carrier
United
79.8% on time across 1,735 flights
These figures cover 2,056 flights between September 2025 and August 2026. Beyond the headline rate, 9.2% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Carrier by carrier
Which airline is most reliable on EWR to AUS
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 | 23 | 90.5% | 29 min | 0.00% | A+ |
| United Airlines | 1,735 | 79.8% | 76 min | 2.48% | B |
| Spirit Airlinesthin sample | 298 | 68.5% | 80 min | 7.05% | C− |
Flight by flight
Flights on EWR to AUS
The flight numbers below flew this route at least 250 times in the period, busiest first. Each has its own record, with its schedule and delay causes.
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.
Best ways to make this trip
The most reliable ways to fly Newark to Austin
Every airline on this route and on the routes between nearby airports, ranked by how often a scheduled flight actually operated and arrived on time. 2 of the top 3 use a different airport at one end.
| Option | Airline | Success | On time | Cancelled | Best departure | Most punctual flight |
|---|---|---|---|---|---|---|
| 1. JFK → AUSNew York to Austin | Delta Air Lines | 80.5% | 83.2% | 3.20% | 5am–8am, Fri | DL 2323 12:59 |
| 2. EWR → AUSNewark to Austin | United Airlines | 77.8% | 79.8% | 2.48% | 5am–8am, Tue | UA 1155 12:20 |
| 3. JFK → AUSNew York to Austin | American Airlines | 74.5% | 77.5% | 3.81% | 5am–8am, Tue | AA 2772 17:53 |
Success is the share of scheduled flights that operated and arrived less than 15 minutes late, so a cancelled flight counts against it. “(route)” means the best time comes from every carrier on the route rather than this airline alone.
Departure window
The best time of day to leave
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.
- 5am–8am374 flights92.3%
- 8am–11am216 flights77.8%
- 11am–2pm393 flights81.5%
- 2pm–5pm313 flights74.5%
- 5pm–8pm392 flights73.6%
- 8pm–5am368 flights69.0%
Scale runs 60% to 100%.
Book the early departure. Flights leaving between 5am–8am arrive on time 92.3% of the time, against 69.0% for the overnight 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 11am–2pm window is the busiest, with 393 flights scheduled in it.
Explore
Filter EWR to AUS by airline, time, month and day
Pick a breakdown and a carrier. The dashed mark on each row is the same slice for every US flight.
On EWR to AUS, the best departure window is 5am–8am at 92.3% on time and the worst is 8pm–5am at 69.0%, a wide gap of 23.3 points. All US flights leaving 5am–8am ran 89.3%.
- 5–8am92.3%
- 8–11am77.8%
- 11am–2pm81.5%
- 2–5pm74.5%
- 5–8pm73.6%
- 8pm–5am69.0%
best all US flightsScale 60% to 95%.
Across the year
When delays peak on this route
This route's year swings by 17 points from best month to worst, which is wide. An annual average tells you very little about the week you are actually flying, so read the strip rather than the headline if your dates are fixed.
July is the worst month at 69.3% on time, 17 points below September, the best at 86.7%. 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. December was the busiest month here, with 215 flights.
Across the week, Tuesday is the strongest day at 86.6% on time and Sunday the weakest at 70.1%, a spread of 17 points.
Delay causes
Why this route gets delayed
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 33,000 reported delay minutes.
- 39%Late-arriving aircraft
- 29%Carrier
- 28%National Airspace System
- 3%Extreme weather
- 0%Security
39% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 33,000 reported delay minutes here, that single category outweighs weather by 11 to one. The split is drawn from 32,714 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 92.3% on time here.
Cancellations run at 3.11%, against 1.89% nationally. That is about one flight in 30 cancelled outright. A cancelled flight is invisible in every on-time figure on this page, so the punctuality numbers above describe only the flights that actually operated.
Connections and stage length
What a delay here actually costs
9.2% 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.
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 77.1% on time across 2,054 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 2,056 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.
Work out the risk of missing a connection in AUS after this flight
What to do with this
Booking this route
Put together: the delay figures matter less here than the 3.11% cancellation rate. A late arrival costs you a little over an hour; a cancelled flight costs you the day. Book the 5am–8am departure so there is still a schedule behind you if it goes wrong, and treat a same-day connection as optimistic. 1,987 completed flights over 12 months sit behind that.
Common questions
EWR to AUS questions
How often is EWR to AUS delayed?
About one flight in five arrives at least 15 minutes late, which is the Department of Transportation's definition of a delayed arrival. That works out to 21.6% of the 2,056 flights in this analysis, against 22.7% nationally. Delayed flights are late by a little over an hour on average.
How reliable is EWR to AUS compared with the rest of the country?
78.4% of flights arrive on time here against a national 77.3%, a difference of about a point in its favour. That is worth a B− on this site's grading scale.
What time of day has the fewest delays on EWR to AUS?
The 5am–8am departure window is the strongest at 92.3% on time. The 8pm–5am window is the weakest at 69.0%, 23 points behind. Later departures inherit delays from earlier flights the same aircraft has already flown, which is why the curve slopes the way it does.
How bad are July delays on EWR to AUS?
July is the weakest month at 69.3% on time, compared with 86.7% in September. Across the year that is 17 points between the best and worst months. Moving flexible dates out of that month is one of the few things that reliably helps.
Related
Where to go next
- AUS to EWR — the return legseparate record
- Newark Liberty International (EWR) delay statistics
- Austin-Bergstrom International (AUS) delay statistics
- United Airlines on EWR to AUS79.8%
- Spirit Airlines on EWR to AUS68.5%
- EWR to MCO, a related route77.9%
- DEN to AUS, a related route76.2%
- EWR to ATL, a related route76.9%
- Republic Airways on-time record90.5%
- United Airlines on-time record79.8%
- Spirit Airlines on-time record68.5%
- The US routes with the most cancellations
- Why the first flight of the morning is statistically safest
Direction matters. EWR to AUS and AUS to EWR are scored separately because they are separate operations, with different departure banks and different aircraft. Compare the return leg.
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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.