ATL to BWI flight delays & on-time performance
Nonstop flights from Hartsfield Jackson Atlanta International Airport to Baltimore/Washington International Thurgood Marshall Airport · 577 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at ATL or BWI 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 Baltimore (BWI) arrived on time 76% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 2.1% were cancelled, and 8% arrived an hour or more late.
- Delta Air Lines was the most punctual airline here (79% on time); Frontier Airlines was the least (61%).
- Departures scheduled around 8am did best (94% on time); around 9pm did worst (52%).
- Wednesday was the most reliable day to fly (84% on time) and Sunday the least (69%).
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (39%).
Which airline is most on time from ATL to BWI?
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 |
|---|---|---|---|---|---|
| Spirit Airlines | 82% | 1.9% | 15 min | 8.7% | 107 |
| Delta Air Lines | 79% | 2.0% | 14 min | 6.9% | 2,811 |
| Southwest Airlines | 78% | 1.9% | 15 min | 6.8% | 1,562 |
| Frontier Airlines | 61% | 2.7% | 28 min | 14.9% | 924 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 5am85%82 flights
- 6am95%117 flights
- 7am90%507 flights
- 8am94%299 flights
- 9am76%183 flights
- 10am87%244 flights
- 11am88%426 flights
- 12pm79%99 flights
- 1pm78%427 flights
- 2pm73%369 flights
- 3pm73%335 flights
- 4pm69%480 flights
- 5pm65%234 flights
- 6pm67%427 flights
- 7pm55%174 flights
- 8pm72%197 flights
- 9pm52%188 flights
- 10pm65%547 flights
- 11pm74%69 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday71%1.8% cancelled
- Tuesday79%2.0% cancelled
- Wednesday84%0.9% cancelled
- Thursday77%1.2% cancelled
- Friday75%1.4% cancelled
- Saturday75%3.4% cancelled
- Sunday69%3.8% 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)39%
- Late-arriving aircraft38%
- Air traffic control & airport congestion19%
- Extreme weather4%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather52%
- Airline (crew, maintenance, cleaning, fueling)44%
- Air traffic control & airport congestion4%
- Security0%
ATL to BWI: common questions
- How often are ATL to BWI flights on time?
- 76% 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 Baltimore cancelled?
- 2.1% of scheduled flights were cancelled (112 of 5,404).
- How long are typical delays?
- Across all flights the average arrival delay was 16 min (early arrivals count as zero). Flights that were late arrived 62 min behind schedule on average, and 8.3% of flights were an hour or more late.
- How long is taxi time at ATL?
- Flights on this route spent 16 min taxiing from the gate to takeoff on average.
Related routes
Return trip: BWI to ATL — 81% 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 → BWI, nonstop flights by US airlines that report to the DOT. How we calculate this.