Route reliability record
HPN→ATL
White Plains to Atlanta
- Flights
- 717
- Period
- July 2025 to June 2026
- Distance
- 781 mi
- Carriers
- 1
This route lands a B, 6 points better than the national rate of 77.6%. About one flight in six 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 717 HPN to ATL flights, with a median arrival 10 minutes early.
Set against the rest of the country, this route's record is 6 points better than the US average of 77.6%. That gap is worth roughly 55 fewer late arrivals for every thousand flights.
Key figures
On time
83.1%
Arrivals under 15 minutes late, of 691 completed flights
Avg delay
89 min
Across delayed arrivals only, not all flights
Cancelled
2.65%
National rate is 1.81%
Best carrier
Delta
83.1% on time across 717 flights
These figures cover 717 flights between July 2025 and June 2026. The median arrival is 10 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.
Carrier by carrier
Which airline is most reliable on HPN to ATL
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 |
|---|---|---|---|---|---|
| Delta Air Lines | 717 | 83.1% | 89 min | 2.65% | B |
Best ways to make this trip
The most reliable ways to fly White Plains to Atlanta
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. 4 of the top 5 use a different airport at one end.
| Option | Airline | Success | On time | Cancelled | Best departure | Most punctual flight |
|---|---|---|---|---|---|---|
| 1. JFK → ATLNew York to Atlanta | Delta Air Lines | 81.0% | 82.2% | 1.51% | 5am–8am, Wed | DL 2342 12:25 |
| 2. HPN → ATLWhite Plains to Atlanta | Delta Air Lines | 80.9% | 83.1% | 2.65% | 5am–8am, Fri | — |
| 3. LGA → ATLNew York to Atlanta | Delta Air Lines | 77.5% | 79.9% | 2.98% | 5am–8am, Wed | DL 342 06:59 |
| 4. EWR → ATLNewark to Atlanta | Delta Air Lines | 77.4% | 80.1% | 3.40% | 5am–8am, Wed | DL 1673 07:00 |
| 5. EWR → ATLNewark to Atlanta | United Airlines | 75.4% | 77.4% | 2.60% | 5am–8am, Wed | UA 1287 21:10 |
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 13 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–8am359 flights89.5%
- 8am–11am—
- 11am–2pm358 flights76.7%
- 2pm–5pm—
- 5pm–8pm—
- 8pm–5am—
Scale runs 70% to 95%. Rows with fewer than 30 flights show a dash.
The weak window here is the middle of the day, not the evening: 11am–2pm runs 76.7% on time against 89.5% for 5am–8am. That shape usually means a departure bank rather than an accumulating delay, so the recovery later in the afternoon is real rather than noise. The 5am–8am window is the busiest, with 359 flights scheduled in it.
Across the year
When delays peak on this route
This route's year swings by 20 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.
December is the weak month at 73.3% on time, against 93.4% in August. 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. January was the busiest month here, with 62 flights.
Across the week, Friday is the strongest day at 93.1% on time and Sunday the weakest at 74.5%. 19 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 10,000 reported delay minutes.
- 42%Carrier
- 32%Late-arriving aircraft
- 16%National Airspace System
- 9%Extreme weather
- 1%Security
The largest share of delay minutes, 42%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. Unlike weather, that is a management outcome, and it is the category where the gap between two carriers on the same schedule is genuinely earned. It accounts for 4,363 of the 10,000 delay minutes reported here. The split is drawn from 10,395 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 89.5% on time here.
Cancellations run at 2.65%, against 1.81% nationally. That is about one flight in 40 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
5.9% 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 an hour and a half, 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. 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.
The return leg is a different operation and performs like one: it runs 77.9% on time across 717 flights, 5 points below 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 5 points of difference.
One caution: this is a thin sample. 717 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.
Work out the risk of missing a connection in ATL after this flight
What to do with this
Booking this route
Put together: treat all of this as provisional. 717 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 83.1% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 691 completed flights over 12 months sit behind that.
Common questions
HPN to ATL questions
How often is HPN to ATL delayed?
About one flight in six arrives at least 15 minutes late, which is the Department of Transportation's definition of a delayed arrival. That works out to 16.9% of the 717 flights in this analysis, against 22.4% nationally. Delayed flights are late by an hour and a half on average.
How reliable is HPN to ATL compared with the rest of the country?
83.1% of flights arrive on time here against a national 77.6%, a difference of 6 points in its favour. That is worth a B on this site's grading scale.
What time of day has the fewest delays on HPN to ATL?
The 5am–8am departure window is the strongest at 89.5% on time. The 11am–2pm window is the weakest at 76.7%, 13 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 December delays on HPN to ATL?
December is the weakest month at 73.3% on time, compared with 93.4% in August. Across the year that is 20 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
- ATL to HPN — the return legseparate record
- Hartsfield-Jackson Atlanta International (ATL) delay statistics
- HPN to PBI, a related route73.9%
- LGA to ATL, a related route76.6%
- HPN to ORD, a related route78.7%
- Delta Air Lines on-time record83.1%
- The US routes with the most cancellations
- Why the first flight of the morning is statistically safest
Direction matters. HPN to ATL and ATL to HPN 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, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.