ATL to BOS flight delays & on-time performance
Nonstop flights from Hartsfield Jackson Atlanta International Airport to Boston Logan International Airport · 946 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at ATL or BOS right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Atlanta (ATL) to Boston (BOS) arrived on time 74% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 2.1% were cancelled, and 9% arrived an hour or more late.
- Delta Air Lines was the most punctual airline here (76% on time); Frontier Airlines was the least (67%).
- Departures scheduled around 8am did best (90% on time); around 4pm did worst (58%).
- Saturday was the most reliable day to fly (79% on time) and Sunday the least (68%).
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (37%).
Which airline is most on time from ATL to BOS?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| Delta Air Lines | 76% | 1.8% | 16 min | 8.2% | 3,693 |
| JetBlue | 70% | 3.2% | 27 min | 12.0% | 844 |
| Frontier Airlines | 67% | 2.6% | 19 min | 10.3% | 427 |
| Spirit Airlines | 62% | 0.0% | 22 min | 15.4% | 13 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 5am77%67 flights
- 6am88%191 flights
- 7am86%522 flights
- 8am90%308 flights
- 9am81%312 flights
- 10am87%210 flights
- 11am82%317 flights
- 12pm70%396 flights
- 1pm74%340 flights
- 2pm64%271 flights
- 3pm63%207 flights
- 4pm58%297 flights
- 5pm64%163 flights
- 6pm63%296 flights
- 7pm66%172 flights
- 8pm64%292 flights
- 9pm65%79 flights
- 10pm73%536 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday71%4.2% cancelled
- Tuesday73%1.4% cancelled
- Wednesday79%0.3% cancelled
- Thursday72%1.2% cancelled
- Friday76%0.8% cancelled
- Saturday79%1.9% cancelled
- Sunday68%4.5% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Airline (crew, maintenance, cleaning, fueling)37%
- Air traffic control & airport congestion35%
- Late-arriving aircraft25%
- Extreme weather3%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather52%
- Airline (crew, maintenance, cleaning, fueling)33%
- Air traffic control & airport congestion15%
- Security0%
ATL to BOS: common questions
- How often are ATL to BOS flights on time?
- 74% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Atlanta to Boston cancelled?
- 2.1% of scheduled flights were cancelled (103 of 4,977).
- How long are typical delays?
- Across all flights the average arrival delay was 18 min (early arrivals count as zero). Flights that were late arrived 65 min behind schedule on average, and 9.0% of flights were an hour or more late.
- How long is taxi time at ATL?
- Flights on this route spent 18 min taxiing from the gate to takeoff on average.
Related routes
Return trip: BOS to ATL — 78% on time
More flights from Atlanta
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: ATL → BOS, nonstop flights by US airlines that report to the DOT. How we calculate this.