Route on-time record
JFK to BUF: most on-time flights and the best time to fly
New York (John F. Kennedy International Airport) to Buffalo (Buffalo Niagara International Airport). 1,213 nonstop flights in Jun 2025 to May 2026, 74% arrived within 15 minutes and 4.3% were cancelled. The most reliable flight number was JetBlue 1602 at 7:30 AM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
JFK → BUF
New York to Buffalo: 1,213 nonstop flights a year
On time (12 months)
74%
Cancelled
4.3%
avg delay 24 min
Best time to leave
Before 9 AM
89% on time vs 57% after 9 PM
Most reliable airline
JetBlue
71% chance on time
Lowest nonstop fare seen in the next two months: $91 (JetBlue 2902 on 2026-10-22). Fares open on our travel partner (Aviasales). Pick the flight number you chose here.
Most reliable nonstop flights
Ranked by the chance the flight operates and arrives within 15 minutes of schedule, from Jun 2025 to May 2026 records.
#1 · JetBlue 1602
7:30 AM → 8:58 AM1h 34m nonstop
Local times, typical schedule. Last flown 2026-05-31.
83%
chance on time
- On time (history)
- 87%
- Cancelled
- 3.8%
- Avg arrival delay
- 11 min
- Arrived on time 87% of the time (301 flights, Jun 2025 to May 2026).
- Cancelled 3.8% of the time (12 of 313).
- Leaves in this route's most on-time window (Before 9 AM: 89% on time; After 9 PM: 57%).
- Departs outside JFK's trouble window (1 PM to 7 PM, when 66% of its 167 ground stops and delay programs started).
Strong track record · 301 flights
Find JetBlue 1602 fares Opens this date on Aviasales#2 · JetBlue 2902
1:29 PM → 2:59 PM1h 29m nonstop
Local times, typical schedule. Last flown 2026-05-20.
81%
chance on time
- On time (history)
- 85%
- Cancelled
- 4.3%
- Avg arrival delay
- 10 min
- Arrived on time 85% of the time (266 flights, Jun 2025 to May 2026).
- Cancelled 4.3% of the time (12 of 278).
- Departs inside JFK's trouble window: 66% of its 167 ground stops and delay programs started between 1 PM and 7 PM.
Strong track record · 266 flights
Find JetBlue 2902 fares Opens this date on Aviasales#3 · JetBlue 2402
12:15 PM → 1:42 PM1h 27m nonstop
Local times, typical schedule. Last flown 2026-05-31.
73%
chance on time
- On time (history)
- 83%
- Cancelled
- 0.0%
- Avg arrival delay
- 6 min
- Arrived on time 83% of the time (12 flights, Jun 2025 to May 2026).
- Departs outside JFK's trouble window (1 PM to 7 PM, when 66% of its 167 ground stops and delay programs started).
- Short track record (12 flights), so its score leans on the airline's record at this hour.
Limited track record · 12 flights
Find JetBlue 2402 fares Opens this date on Aviasales#4 · JetBlue 1202
7:14 PM → 8:53 PM1h 39m nonstop
Local times, typical schedule. Last flown 2026-05-31.
61%
chance on time
- On time (history)
- 62%
- Cancelled
- 4.4%
- Avg arrival delay
- 39 min
- Arrived on time 62% of the time (284 flights, Jun 2025 to May 2026).
- Cancelled 4.4% of the time (13 of 297).
- Departs outside JFK's trouble window (1 PM to 7 PM, when 66% of its 167 ground stops and delay programs started).
Strong track record · 284 flights
Find JetBlue 1202 fares Opens this date on Aviasales#5 · JetBlue 102
7:30 PM → 9:17 PM1h 45m nonstop
Local times, typical schedule. Last flown 2026-05-31.
59%
chance on time
- On time (history)
- 60%
- Cancelled
- 4.9%
- Avg arrival delay
- 34 min
- Arrived on time 60% of the time (268 flights, Jun 2025 to May 2026).
- Cancelled 4.9% of the time (14 of 283).
- Departs outside JFK's trouble window (1 PM to 7 PM, when 66% of its 167 ground stops and delay programs started).
Strong track record · 268 flights
Find JetBlue 102 fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- JetBlue71%
1,213 flights · 74% on time as flown · 4.3% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM89%
334 flights · avg delay 7 min
- 9 AM to noon82%
156 flights · avg delay 13 min
- Noon to 3 PM79%
159 flights · avg delay 22 min
- 3 to 6 PM64%
197 flights · avg delay 38 min
- 6 to 9 PM62%
189 flights · avg delay 31 min
- After 9 PM57%
178 flights · avg delay 43 min
Best day: Tuesday (80%). Worst: Sunday (70%).
Smarter routing
Nearby airports that run more on time
EWR → ROC 81% chance on time
Newark Liberty International Airport to Frederick Douglass Greater Rochester International Airport · 633 flights a year · 76 mi from your airports · yours: 71%
EWR → BUF 74% chance on time
Newark Liberty International Airport to Buffalo Niagara International Airport · 398 flights a year · 21 mi from your airports · yours: 71%
On time by month
All airlines, Jun 2023 to May 2026. Several years per month, so one stormy season doesn't define a month. Travel-month estimates use this seasonal pattern.
What delays this route
- Late-arriving aircraft41%
- Airline (crew, maintenance, boarding)40%
- Air traffic control and airport volume12%
- Severe weather6%
Share of delay minutes by the cause airlines report to the US DOT.
Historical odds, not a guarantee. Built from the US DOT Bureau of Transportation Statistics on-time reports (Jun 2025 to May 2026), FAA ground stop and delay program advisories, and 20 years of airport weather observations. Covers US airlines that report to the DOT; schedules are flights operated recently, so confirm times when you book. ATIS Alerts is not affiliated with any airline. Fares are what Aviasales travelers saw in recent searches (USD, one way, 1 adult), not live quotes; the partner site shows the current price. Fare links go to our travel partner and may earn us a commission at no cost to you. Affiliate disclosure
JFK to BUF questions
- What time of day is best to fly JFK to BUF?
- Before 9 AM: 89% of flights arrived on time, against 57% for departures after 9 PM. Later flights inherit delays from earlier ones, so the first departures of the day usually run best.
- Which airline is most on time from JFK to BUF?
- JetBlue, with a season-adjusted 71% chance of operating and arriving on time over 1,213 flights. The adjustment compares each airline with what the route did in the months it flew, so a carrier that skipped a stormy month gets no free credit.
- What is the worst month for delays on JFK to BUF?
- July (61% on time); the best was April (83%), averaged over Jun 2023 to May 2026.
- Is this a prediction for my flight?
- No. These are historical odds from the US DOT on-time reports, FAA advisories and airport weather records. Check your flight status and the FAA delay board on the day you fly.
More routes from JFK
- BUF to JFK (return)
- JFK to LAX 78%
- JFK to SFO 75%
- JFK to BOS 73%
- JFK to MCO 73%
- JFK to MIA 76%
- JFK to ATL 76%
- JFK to FLL 72%
- JFK to LAS 80%
- JFK to PHX 78%
- JFK to SEA 68%
- JFK to DCA 67%
- JFK to SAN 79%
Live status: FAA delays and ground stops