Route on-time record
JFK to BOS: most on-time flights and the best time to fly
New York (John F. Kennedy International Airport) to Boston (Boston Logan International Airport). 5,761 nonstop flights in Jun 2025 to May 2026, 73% arrived within 15 minutes and 4.2% were cancelled. The most reliable flight number was Republic 5765 at 6:00 AM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
JFK → BOS
New York to Boston: 5,761 nonstop flights a year
On time (12 months)
73%
Cancelled
4.2%
avg delay 22 min
Best time to leave
Before 9 AM
90% on time vs 60% 3 to 6 PM
Most reliable airline
Republic
74% chance on time
Lowest nonstop fare seen in the next two months: $86 (JetBlue 818 on 2026-10-20). 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 · Republic 5765 · sold as American Eagle, Delta Connection or United Express
6:00 AM → 7:15 AM1h 22m nonstop
Local times, typical schedule. Last flown 2026-05-31.
90%
chance on time
- On time (history)
- 92%
- Cancelled
- 1.7%
- Avg arrival delay
- 7 min
- Arrived on time 92% of the time (341 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 90% on time; 3 to 6 PM: 60%).
- 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 · 341 flights
Find 6:00 AM flight fares Opens this date on Aviasales#2 · Republic 4543 · sold as American Eagle, Delta Connection or United Express
6:30 AM → 7:47 AM1h 17m nonstop
Local times, typical schedule. Last flown 2026-04-06.
88%
chance on time
- On time (history)
- 96%
- Cancelled
- 6.7%
- Avg arrival delay
- 2 min
- Arrived on time 96% of the time (28 flights, Jun 2025 to May 2026).
- Cancelled 6.7% of the time (2 of 30).
- Leaves in this route's most on-time window (Before 9 AM: 90% on time; 3 to 6 PM: 60%).
- Departs outside JFK's trouble window (1 PM to 7 PM, when 66% of its 167 ground stops and delay programs started).
Limited track record · 28 flights
Find 6:30 AM flight fares Opens this date on Aviasales#3 · Republic 4376 · sold as American Eagle, Delta Connection or United Express
8:29 AM → 9:55 AM1h 26m nonstop
Local times, typical schedule. Last flown 2026-05-31.
88%
chance on time
- On time (history)
- 90%
- Cancelled
- 0.0%
- Avg arrival delay
- 5 min
- Arrived on time 90% of the time (161 flights, Jun 2025 to May 2026).
- Never cancelled in 161 scheduled flights.
- Leaves in this route's most on-time window (Before 9 AM: 90% on time; 3 to 6 PM: 60%).
- Departs outside JFK's trouble window (1 PM to 7 PM, when 66% of its 167 ground stops and delay programs started).
Moderate track record · 161 flights
Find 8:29 AM flight fares Opens this date on Aviasales#4 · Republic 5733 · sold as American Eagle, Delta Connection or United Express
9:57 AM → 11:10 AM1h 20m nonstop
Local times, typical schedule. Last flown 2026-05-31.
85%
chance on time
- On time (history)
- 88%
- Cancelled
- 1.6%
- Avg arrival delay
- 9 min
- Arrived on time 88% of the time (358 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).
Strong track record · 358 flights
Find 9:57 AM flight fares Opens this date on Aviasales#5 · JetBlue 118
6:30 AM → 7:43 AM1h 13m nonstop
Local times, typical schedule. Last flown 2026-05-20.
84%
chance on time
- On time (history)
- 88%
- Cancelled
- 3.4%
- Avg arrival delay
- 8 min
- Arrived on time 88% of the time (200 flights, Jun 2025 to May 2026).
- Cancelled 3.4% of the time (7 of 207).
- Leaves in this route's most on-time window (Before 9 AM: 90% on time; 3 to 6 PM: 60%).
- 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 · 200 flights
Find JetBlue 118 fares Opens this date on Aviasales#6 · JetBlue 2718
6:40 AM → 7:56 AM1h 16m nonstop
Local times, typical schedule. Last flown 2026-05-31.
83%
chance on time
- On time (history)
- 88%
- Cancelled
- 4.8%
- Avg arrival delay
- 10 min
- Arrived on time 88% of the time (80 flights, Jun 2025 to May 2026).
- Cancelled 4.8% of the time (4 of 84).
- Leaves in this route's most on-time window (Before 9 AM: 90% on time; 3 to 6 PM: 60%).
- Departs outside JFK's trouble window (1 PM to 7 PM, when 66% of its 167 ground stops and delay programs started).
Moderate track record · 80 flights
Find JetBlue 2718 fares Opens this date on Aviasales#7 · Republic 4667 · sold as American Eagle, Delta Connection or United Express
9:40 AM → 11:04 AM1h 24m nonstop
Local times, typical schedule. Last flown 2026-05-20.
83%
chance on time
- On time (history)
- 89%
- Cancelled
- 0.0%
- Avg arrival delay
- 8 min
- Arrived on time 89% of the time (44 flights, Jun 2025 to May 2026).
- Never cancelled in 44 scheduled flights.
- 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 (44 flights), so its score leans on the airline's record at this hour.
Limited track record · 44 flights
Find 9:40 AM flight fares Opens this date on Aviasales#8 · JetBlue 1018
9:30 AM → 11:02 AM1h 32m nonstop
Local times, typical schedule. Last flown 2026-05-31.
78%
chance on time
- On time (history)
- 81%
- Cancelled
- 1.1%
- Avg arrival delay
- 17 min
- Arrived on time 81% of the time (93 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).
- 65% of its delay minutes came from the plane arriving late from an earlier flight.
Moderate track record · 93 flights
Find JetBlue 1018 fares Opens this date on Aviasales#9 · Republic 4687 · sold as American Eagle, Delta Connection or United Express
1:59 PM → 3:16 PM1h 17m nonstop
Local times, typical schedule. Last flown 2026-04-06. Same departure also flew as Republic 4615; its record covers all of them.
76%
chance on time
- On time (history)
- 79%
- Cancelled
- 2.6%
- Avg arrival delay
- 19 min
- Arrived on time 79% of the time (152 flights, Jun 2025 to May 2026).
- Departs inside JFK's trouble window: 66% of its 167 ground stops and delay programs started between 1 PM and 7 PM.
- Lands inside BOS's trouble window: 79% of its 196 ground stops and delay programs started between noon and 6 PM.
Moderate track record · 152 flights
Find 1:59 PM flight fares Opens this date on Aviasales#10 · Republic 4708 · sold as American Eagle, Delta Connection or United Express
10:10 AM → 11:25 AM1h 15m nonstop
Local times, typical schedule. Last flown 2026-04-06.
73%
chance on time
- On time (history)
- 74%
- Cancelled
- 3.3%
- Avg arrival delay
- 23 min
- Arrived on time 74% of the time (238 flights, Jun 2025 to May 2026).
- Cancelled 3.3% of the time (8 of 246).
- 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 · 238 flights
Find 10:10 AM flight fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- Republic Airways (sold as American Eagle, Delta Connection or United Express)74%
2,916 flights · 78% on time as flown · 4.6% cancel
- JetBlue67%
2,477 flights · 69% on time as flown · 3.9% cancel
- Delta Air Lines65%
368 flights · 66% on time as flown · 3.3% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM90%
1,161 flights · avg delay 8 min
- 9 AM to noon85%
972 flights · avg delay 11 min
- Noon to 3 PM70%
983 flights · avg delay 24 min
- 3 to 6 PM60%
1,057 flights · avg delay 33 min
- 6 to 9 PM61%
584 flights · avg delay 32 min
- After 9 PM67%
1,004 flights · avg delay 28 min
Best day: Tuesday (79%). Worst: Sunday (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 aircraft40%
- Air traffic control and airport volume35%
- Airline (crew, maintenance, boarding)23%
- Severe weather1%
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 BOS questions
- What time of day is best to fly JFK to BOS?
- Before 9 AM: 90% of flights arrived on time, against 60% for departures 3 to 6 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 BOS?
- Republic, with a season-adjusted 74% chance of operating and arriving on time over 2,916 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 BOS?
- July (65% on time); the best was November (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
- BOS to JFK (return)
- JFK to LAX 78%
- JFK to SFO 75%
- 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