Route reliability record
EWR→DFW
Newark to Dallas-Fort Worth
- Flights
- 111,854
- Period
- June 2025 to May 2026
- Distance
- 1,370 mi
- Carriers
- 2
This route draws a C. About one flight in three arrive at least 15 minutes late, and the typical late arrival is roughly 50 minutes behind schedule. Build slack into anything you connect to. That rests on 111,854 flights, of which United Airlines flew 53,482 at 67.3% on time.
The national on-time rate over the same period is 75.9%, so this route runs 9 points behind the country as a whole. Across a thousand flights that is about 88 extra late arrivals.
Key figures
On time
67.1%
Arrivals under 15 minutes late, of 109,411 completed flights
Avg delay
52 min
Across delayed arrivals only, not all flights
Cancelled
2.02%
National rate is 2.23%
Best carrier
United
67.3% on time across 53,482 flights
These figures cover 112,000 flights between June 2025 and May 2026. Beyond the headline rate, 10.8% 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
Which airline is most reliable on EWR to DFW
The two carriers here are closely matched: half a point separate the best from the worst. At that spread, schedule and price are better tie-breakers than reliability. Sample sizes are shown so you can see which rows are worth weighing.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| United Airlines | 53,482 | 67.3% | 58 min | 1.30% | C |
| Allegiant Air | 58,372 | 66.9% | 46 min | 2.68% | C |
No carrier stands out. United tops the table at 67.3%, half a point clear of the bottom, which is inside the range this kind of sample moves year to year.
Departure window
The best time of day to leave
Departure time is the single lever a traveller controls, and it moves the odds more than most people expect. Each bar below is the on-time rate for flights scheduled to leave inside that window, across 112,000 flights.
- 5am–8am17,338 flights72.1%
- 8am–11am22,930 flights68.1%
- 11am–2pm20,693 flights63.6%
- 2pm–5pm19,574 flights66.1%
- 5pm–8pm20,134 flights62.1%
- 8pm–5am11,185 flights67.6%
Scale runs 55% to 80%. Rows with fewer than 30 flights show a dash.
The 5pm–8pm window is where this operation falls apart: 62.1% on time, against 72.1% for the 5am–8am slot. By evening the aircraft flying these rotations have absorbed a full day of small delays and there is no slack left to recover in.
Across the year
When delays peak on this route
Twelve months, one bar each, drawn from the same 111,854 flights. The strip shows how much of this route's record is set by the calendar rather than by the operation.
January is the weak month at 60.1% on time, against 71.1% in May. 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.
Across the week, Tuesday is the strongest day at 68.9% on time and Saturday the weakest at 64.5%. 4 points is a smaller lever than departure hour, but it is free.
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 1.87 million reported delay minutes.
- 41%National Airspace System
- 31%Late-arriving aircraft
- 18%Carrier
- 10%Extreme weather
- 0%Security
41% 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 762,000 minutes out of 1.87 million, against a national NAS share of 30%.
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 72.1% on time here.
Cancellations sit at 2.02% against a national 2.23%, which is ordinary. Diversions add another 0.17%.
Connections and stage length
What a delay here actually costs
For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 10.8% of arrivals land a full hour or more behind schedule, against 8.6% 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.
The 1,370 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. It is also long enough that the aircraft usually flies three or four legs a day rather than six, which slows how fast delay compounds.
111,854 flights sit behind these numbers, which is a large enough sample that the headline rate is not moving on noise. Where a sub-group falls below 30 flights the site shows a dash instead of a percentage.
What to do with this
Booking this route
Put together: take the 5am–8am departure, avoid January if the dates are flexible, and if two carriers are within a few dollars of each other, United is the one with the record behind it. None of that guarantees an on-time arrival; it moves the odds by 10 points, which is the most any booking decision can do.
Common questions
EWR to DFW questions
How often is EWR to DFW delayed?
About one flight in three arrive at least 15 minutes late, which is the Department of Transportation's definition of a delayed arrival. That works out to 32.9% of the 111,854 flights in this analysis, against 24.1% nationally. Delayed flights are late by roughly 50 minutes on average.
Which airline is most reliable on EWR to DFW?
United Airlines leads at 67.3% on time across 53,482 flights. Allegiant Air is at the other end on 66.9%, a gap of half a point. Sample size matters as much as the percentage: a rate built from a few hundred flights moves around far more than one built from ten thousand.
What time of day has the fewest delays on EWR to DFW?
The 5am–8am departure window is the strongest at 72.1% on time. The 5pm–8pm window is the weakest at 62.1%, 10 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 January delays on EWR to DFW?
January is the weakest month at 60.1% on time, compared with 71.1% in May. Across the year that is 11 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
- Newark Liberty International (EWR) delay statistics
- Dallas/Fort Worth International (DFW) delay statistics
- United Airlines on-time record67.3%
- Allegiant Air on-time record66.9%
- The best time of day to fly, according to 11.3 million flight records
- Connecting flights: how much buffer the data says you need
The reverse direction, DFW to EWR, does not clear this site’s 365-flight floor and has no page of its own.
Source: US DOT Bureau of Transportation Statistics, on-time performance data, June 2025 to May 2026. Updated monthly. How this data is collected.