Route profile
JFK→LAS
Flight reliability, delays and best times to fly from New York to Las Vegas, 2,248 miles.
Right now
Aviation weather is not currently a factor.
Aviation weather is not currently a factor.
Route reliability
July 2023 – July 2026
Better than 58% of comparable major US routes (4,598 compared)
Calculated from 10,910 flights. How this is calculated
JFK → LAS arrives on time 80.1% of the time; the return trip, LAS → JFK, arrives on time 78.6% of the time.
JFK → LAS spends 36.8 minutes on the ground on a 2,248-mile trip: 27.6 minutes from pushback to wheels-up at JFK and 9.2 minutes from touchdown to gate at LAS.
Source: US DOT Bureau of Transportation Statistics · Data covering July 2023 – July 2026
Why JFK → LAS flights are cancelled
July 2023 – July 2026
JFK → LAS cancelled 164 of 10,910 scheduled flights — about 1 in every 67. The reason filed most often was extreme weather, 45.1% of the cancellations coded on this route — about 1 in every 147 scheduled flights.
Share of cancellations
Of 164 cancelled departures carrying a reason code.
What each reason means
Conditions the carrier judged severe enough to stop the flight: a blizzard, a hurricane, a line of thunderstorms.
74 cancellations, 45.1% of the total.
Crew, maintenance, aircraft cleaning, baggage or fueling: what BTS counts as within the carrier’s own control.
56 cancellations, 34.1% of the total.
Airport capacity, air traffic control flow programs, heavy traffic and ordinary bad weather. A system decision, not the airline’s.
34 cancellations, 20.7% of the total.
A terminal evacuation, a security breach, screening equipment failure, or screening queues over 29 minutes.
0 cancellations, 0.0% of the total.
Reason codes are the operating airline’s own filing with US DOT, not an independent finding of fault. Ordinary bad weather is filed under air traffic, so weather’s full share is larger than its bar.
164 coded cancellations were recorded on JFK → LAS; the section appears from 50.
When it goes wrong
July 2023 – July 2026
42 min late
against a median of 12 min early
Percentiles over 10,910 operations; cancelled and diverted flights are counted separately.
Will your connection be tight enough?
Layovers at LAS after arriving from JFK.
| Connection time | Chance of missing | Reads as |
|---|---|---|
| 30 min | 32% | Likely to miss |
| 45 min | 19% | High risk |
| 60 min | 13% | Some risk |
| 90 min | 6.9% | Some risk |
| 120 min | 4.1% | Low risk |
This is one leg of a connection. Gate changes and the next flight's own schedule matter too. And a connection can fail before delay is even the question — this route cancels 1.50% of the time and diverts 0.20% of the time, which a late arrival never shows up in.
Chance of missing is the share of 10,724 arrivals on this route that landed later than the connection time less 30 minutes to reach the next gate.
The worst tenth of arrivals on this route land at least 42 minutes late (90th-percentile gate arrival delay), over 10,910 operations.
Any other layover length: connection checker.
Best time to fly
JFK → LAS flights departing 5–9 AM arrived on time 86.1% of the time, against 70.4% for 6–9 PM departures, a gap of 15.7 percentage points.
By departure window
By departure hour
- 12 AM to 5 AM: too few flights to score
- 6 AM: 84.6% on time from 995 flights
- 7 AM: 87.4% on time from 2,099 flights
- 8 AM: 83.8% on time from 517 flights
- 9 AM: 82.5% on time from 373 flights
- 10 AM: 83.8% on time from 409 flights
- 11 AM: 86.6% on time from 1,169 flights
- 12 PM: 81.6% on time from 290 flights
- 1 PM to 2 PM: too few flights to score
- 3 PM: 78.7% on time from 333 flights
- 4 PM: 79.2% on time from 956 flights
- 5 PM: 72.3% on time from 463 flights
- 6 PM: 76.8% on time from 805 flights
- 7 PM: 68.2% on time from 958 flights
- 8 PM: 61.8% on time from 366 flights
- 9 PM: 75.1% on time from 1,028 flights
- 10 PM to 11 PM: too few flights to score
Why JFK → LAS runs late
July 2023 – July 2026
crew, maintenance, boarding and fueling, all within the carrier’s control
airspace and airport capacity, including weather-driven flow control
the inbound aircraft was late, so this flight started late
weather severe enough to stop this flight specifically
screening or terminal security incidents
Share of the delay minutes US DOT attributed to each cause for JFK → LAS. Only delays of 15 minutes or more are attributed.
How this route holds up in bad weather
July 2023 – July 2026
Bad weather raises cancellations by a similar amount at both ends of JFK to LAS: 3.5 times the normal rate at JFK and 2.4 times at LAS. Cancelled in bad weather against normal hours: JFK 6.0% against 1.7%, LAS 2.0% against 0.8%. Flights that did leave LAS in bad weather arrived on time 58.5% of the time, against 78.5% in normal hours.
Bad weather and normal hours at the airports
Scheduled departures, July 2023 – July 2026| Departures from | JFK | LAS |
|---|---|---|
| Cancelled in bad weather | 6.0% | 2.0% |
| Cancelled in normal hours | 1.7% | 0.8% |
| Arrived on time, bad weather | 64.1% | 58.5% |
| Arrived on time, normal hours | 79.7% | 78.5% |
| Departures in bad weather | 46,497 | 14,522 |
Delta Air Lines (4.0% cancelled against 6.9% for the other carriers at JFK), American Airlines (4.6% cancelled against 6.6% for the other carriers at JFK) and Frontier Airlines (4.6% cancelled against 6.5% for the other carriers at JFK) cancelled fewer departures from JFK in bad weather than the other carriers there did in the same months. None of the route’s other carriers was clearly worse.
This route’s airlines in bad weather at JFK
All departures from JFK| Airline | Bad-weather departures | Cancelled | Other carriers |
|---|---|---|---|
| Delta Air Lines | 12,657 | 4.0%below the others | 6.9% |
| American Airlines | 6,152 | 4.6%below the others | 6.6% |
| Frontier Airlines | 672 | 4.6%below the others | 6.5% |
| JetBlue | 14,948 | 6.2%about level | 6.2% |
These are airport figures, not route figures: every scheduled departure from JFK and LAS, to any destination, in hours the weather report called bad. The airline rows count each carrier’s departures from JFK on every route.
Weather source and limits. In full: JFK (airlines), LAS, What Weather Costs Each Airport, Who Cancels More When the Weather Turns, Airports That Change Places When Weather Turns.
Airlines on this route
Carriers with at least 200 flights, by the airline that operated each one.
| Carrier | Flights | On time | Cancelled | Median delay | Severe |
|---|---|---|---|---|---|
| Delta Air Lines | 5,264 | 81.4% | 1.39% | -13 min | 6.1% |
| JetBlue | 4,342 | 78.9% | 1.70% | -11 min | 8.3% |
| American Airlines | 778 | 84.9% | 1.54% | -15 min | 5.2% |
| Frontier Airlines | 524 | 69.4% | 0.95% | -3 min | 8.9% |
Delta Air Lines flew 48.3% of the 10,908 flights listed.
American Airlines arrived on time 15.5 percentage points more often than Frontier Airlines on this route.
Flights on this route
Flight numbers with at least 600 operations here and still on the schedule.
B6411 (6:00 AM) arrived on time 89.9% of the time, 22.8 points more often than B6711 (7:54 PM) at 67.1%.
Weekly and seasonal patterns
By day of week
Wednesday is historically the most reliable day and Sunday the least, a gap of 6.2 percentage points.
By month
- Jan: 84.0%
- Feb: 76.6%
- Mar: 84.2%
- Apr: 82.3%
- May: 81.1%
- Jun: 76.9%
- Jul: 69.6%
- Aug: 77.8%
- Sep: 79.6%
- Oct: 82.3%
- Nov: 86.8%
- Dec: 82.0%
July is historically the weakest month and November the strongest, a spread of 17.2 percentage points.
Reliability over time
July 2023 – July 2026
- July 2023: 56.2% from 248 flights
- August 2023: 70.9% from 223 flights
- September 2023: 68.8% from 262 flights
- October 2023: 79.1% from 298 flights
- November 2023: 91.8% from 257 flights
- December 2023: 91.6% from 214 flights
- January 2024: 87.2% from 212 flights
- February 2024: 84.9% from 225 flights
- March 2024: 84.3% from 231 flights
- April 2024: 77.6% from 252 flights
- May 2024: 76.8% from 297 flights
- June 2024: 75.3% from 269 flights
- July 2024: 73.1% from 265 flights
- August 2024: 72.6% from 284 flights
- September 2024: 86.0% from 315 flights
- October 2024: 89.3% from 363 flights
- November 2024: 88.0% from 328 flights
- December 2024: 84.0% from 307 flights
- January 2025: 86.3% from 320 flights
- February 2025: 67.6% from 309 flights
- March 2025: 83.9% from 356 flights
- April 2025: 83.7% from 357 flights
- May 2025: 85.3% from 361 flights
- June 2025: 76.7% from 322 flights
- July 2025: 70.8% from 322 flights
- August 2025: 87.2% from 314 flights
- September 2025: 81.8% from 337 flights
- October 2025: 77.5% from 345 flights
- November 2025: 81.3% from 304 flights
- December 2025: 72.4% from 283 flights
- January 2026: 78.9% from 294 flights
- February 2026: 80.4% from 249 flights
- March 2026: 84.4% from 299 flights
- April 2026: 84.3% from 321 flights
- May 2026: 80.4% from 329 flights
- June 2026: 78.5% from 317 flights
- July 2026: 75.9% from 321 flights
Over the most recent 12 months (2025-08 to 2026-07), on-time arrivals averaged 80.3% against 81.5% in the 12 months before — broadly unchanged.
Data and methodology
Calculated by FlyerIntel from 10,910 JFK → LAS flight records from the US DOT Bureau of Transportation Statistics, covering July 2023 – July 2026. Late means 15 or more minutes past scheduled arrival; cancelled and diverted flights are left out of on-time rates.
Full methodology · Data sources · Report a problem
Related research: How Long a Layover Needs to Be · Two Airlines on One Route · Best Time of Day to Fly From Major US Airports
Analysis last recomputed