Route on-time record
BWI to ATL: most on-time flights and the best time to fly
Baltimore (Baltimore/Washington International Thurgood Marshall Airport) to Atlanta (Hartsfield Jackson Atlanta International Airport). 5,431 nonstop flights in Jun 2025 to May 2026, 79% arrived within 15 minutes and 2.0% were cancelled. The most reliable flight number was Delta 2950 at 6:00 AM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
BWI → ATL
Baltimore to Atlanta: 5,431 nonstop flights a year
On time (12 months)
79%
Cancelled
2.0%
avg delay 16 min
Best time to leave
Before 9 AM
87% on time vs 67% 6 to 9 PM
Most reliable airline
Delta
82% chance on time
Lowest nonstop fare seen in the next two months: $37 (Frontier 2633 on 2026-11-13). 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 · Delta 2950
6:00 AM → 8:08 AM2h 01m nonstop
Local times, typical schedule. Last flown 2026-05-31.
90%
chance on time
- On time (history)
- 93%
- Cancelled
- 3.0%
- Avg arrival delay
- 4 min
- Arrived on time 93% of the time (354 flights, Jun 2025 to May 2026).
- Cancelled 3.0% of the time (11 of 365).
- Leaves in this route's most on-time window (Before 9 AM: 87% on time; 6 to 9 PM: 67%).
- Departs outside BWI's trouble window (2 PM to 8 PM, when 81% of its 43 ground stops and delay programs started).
Strong track record · 354 flights
Find Delta 2950 fares Opens this date on Aviasales#2 · Delta 2579
7:00 AM → 9:35 AM2h 00m nonstop
Local times, typical schedule. Last flown 2026-05-31.
88%
chance on time
- On time (history)
- 89%
- Cancelled
- 1.5%
- Avg arrival delay
- 12 min
- Arrived on time 89% of the time (319 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 87% on time; 6 to 9 PM: 67%).
- Departs outside BWI's trouble window (2 PM to 8 PM, when 81% of its 43 ground stops and delay programs started).
Strong track record · 319 flights
Find Delta 2579 fares Opens this date on Aviasales#3 · Delta 1592
10:52 AM → 12:55 PM1h 57m nonstop
Local times, typical schedule. Last flown 2026-05-31.
87%
chance on time
- On time (history)
- 89%
- Cancelled
- 2.1%
- Avg arrival delay
- 9 min
- Arrived on time 89% of the time (286 flights, Jun 2025 to May 2026).
- Departs outside BWI's trouble window (2 PM to 8 PM, when 81% of its 43 ground stops and delay programs started).
Strong track record · 286 flights
Find Delta 1592 fares Opens this date on Aviasales#4 · Delta 2562
8:38 AM → 10:40 AM2h 02m nonstop
Local times, typical schedule. Last flown 2026-05-31.
87%
chance on time
- On time (history)
- 90%
- Cancelled
- 2.9%
- Avg arrival delay
- 11 min
- Arrived on time 90% of the time (335 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 87% on time; 6 to 9 PM: 67%).
- Departs outside BWI's trouble window (2 PM to 8 PM, when 81% of its 43 ground stops and delay programs started).
Strong track record · 335 flights
Find Delta 2562 fares Opens this date on Aviasales#5 · Southwest 3049
8:10 AM → 10:10 AM2h 00m nonstop
Local times, typical schedule. Last flown 2026-05-31.
84%
chance on time
- On time (history)
- 85%
- Cancelled
- 1.8%
- Avg arrival delay
- 11 min
- Arrived on time 85% of the time (54 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 87% on time; 6 to 9 PM: 67%).
- Departs outside BWI's trouble window (2 PM to 8 PM, when 81% of its 43 ground stops and delay programs started).
- Short track record (54 flights), so its score leans on the airline's record at this hour.
Limited track record · 54 flights
Find Southwest 3049 fares Opens this date on Aviasales#6 · Delta 801
11:50 AM → 1:41 PM1h 54m nonstop
Local times, typical schedule. Last flown 2026-05-31.
84%
chance on time
- On time (history)
- 85%
- Cancelled
- 1.9%
- Avg arrival delay
- 9 min
- Arrived on time 85% of the time (308 flights, Jun 2025 to May 2026).
- Departs outside BWI's trouble window (2 PM to 8 PM, when 81% of its 43 ground stops and delay programs started).
- Lands inside ATL's trouble window: 59% of its 96 ground stops and delay programs started between 1 PM and 7 PM.
Strong track record · 308 flights
Find Delta 801 fares Opens this date on Aviasales#7 · Southwest 237
9:15 AM → 11:20 AM2h 05m nonstop
Local times, typical schedule. Last flown 2026-04-06.
82%
chance on time
- On time (history)
- 87%
- Cancelled
- 6.1%
- Avg arrival delay
- 5 min
- Arrived on time 87% of the time (31 flights, Jun 2025 to May 2026).
- Cancelled 6.1% of the time (2 of 33).
- Departs outside BWI's trouble window (2 PM to 8 PM, when 81% of its 43 ground stops and delay programs started).
- Short track record (31 flights), so its score leans on the airline's record at this hour.
Limited track record · 31 flights
Find Southwest 237 fares Opens this date on Aviasales#8 · Delta 2711
2:38 PM → 4:38 PM1h 56m nonstop
Local times, typical schedule. Last flown 2026-05-31.
81%
chance on time
- On time (history)
- 81%
- Cancelled
- 1.3%
- Avg arrival delay
- 14 min
- Arrived on time 81% of the time (298 flights, Jun 2025 to May 2026).
- Departs inside BWI's trouble window: 81% of its 43 ground stops and delay programs started between 2 PM and 8 PM.
- Lands inside ATL's trouble window: 59% of its 96 ground stops and delay programs started between 1 PM and 7 PM.
Strong track record · 298 flights
Find Delta 2711 fares Opens this date on Aviasales#9 · Delta 2942
6:59 PM → 9:12 PM2h 13m nonstop
Local times, typical schedule. Last flown 2026-04-12.
79%
chance on time
- On time (history)
- 84%
- Cancelled
- 0.0%
- Avg arrival delay
- 62 min
- Arrived on time 84% of the time (31 flights, Jun 2025 to May 2026).
- Never cancelled in 31 scheduled flights.
- Leaves in this route's least on-time window (6 to 9 PM: 67% on time; Before 9 AM: 87%).
- Departs inside BWI's trouble window: 81% of its 43 ground stops and delay programs started between 2 PM and 8 PM.
Limited track record · 31 flights
Find Delta 2942 fares Opens this date on Aviasales#10 · Frontier 4427
8:52 AM → 11:07 AM2h 15m nonstop
Local times, typical schedule. Last flown 2026-05-31.
78%
chance on time
- On time (history)
- 79%
- Cancelled
- 0.0%
- Avg arrival delay
- 14 min
- Arrived on time 79% of the time (43 flights, Jun 2025 to May 2026).
- Never cancelled in 43 scheduled flights.
- Leaves in this route's most on-time window (Before 9 AM: 87% on time; 6 to 9 PM: 67%).
- Departs outside BWI's trouble window (2 PM to 8 PM, when 81% of its 43 ground stops and delay programs started).
Limited track record · 43 flights
Find Frontier 4427 fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- Delta Air Lines82%
2,838 flights · 84% on time as flown · 2.2% cancel
- Spirit Airlines82%
165 flights · 83% on time as flown · 1.3% cancel
- Southwest Airlines76%
1,580 flights · 77% on time as flown · 1.4% cancel
- Frontier Airlines66%
848 flights · 67% on time as flown · 2.6% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM87%
1,810 flights · avg delay 10 min
- 9 AM to noon86%
917 flights · avg delay 11 min
- Noon to 3 PM82%
821 flights · avg delay 12 min
- 3 to 6 PM71%
929 flights · avg delay 24 min
- 6 to 9 PM67%
871 flights · avg delay 28 min
Best day: Wednesday (84%). Worst: Sunday (74%).
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 aircraft39%
- Airline (crew, maintenance, boarding)32%
- Air traffic control and airport volume25%
- Severe weather4%
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
BWI to ATL questions
- What time of day is best to fly BWI to ATL?
- Before 9 AM: 87% of flights arrived on time, against 67% for departures 6 to 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 BWI to ATL?
- Delta, with a season-adjusted 82% chance of operating and arriving on time over 2,838 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 BWI to ATL?
- July (65% on time); the best was October (86%), 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 BWI
- ATL to BWI (return)
- BWI to MCO 75%
- BWI to BOS 74%
- BWI to FLL 75%
- BWI to CLT 80%
- BWI to DEN 76%
- BWI to TPA 79%
- BWI to ORD 75%
- BWI to MIA 74%
- BWI to DTW 81%
- BWI to PVD 78%
- BWI to BNA 80%
- BWI to MDW 76%
Live status: FAA delays and ground stops