Route on-time record
BHM to BWI: most on-time flights and the best time to fly
Birmingham (Birmingham-Shuttlesworth International Airport) to Baltimore (Baltimore/Washington International Thurgood Marshall Airport). 346 nonstop flights in Jun 2025 to May 2026, 81% arrived within 15 minutes and 2.0% were cancelled. The most reliable flight number was Southwest 1562 at 10:25 AM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
BHM → BWI
Birmingham to Baltimore: 346 nonstop flights a year
On time (12 months)
81%
Cancelled
2.0%
avg delay 14 min
Best time to leave
9 AM to noon
95% on time vs 75% noon to 3 PM
Most reliable airline
Southwest
80% chance on time
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 · Southwest 1562
10:25 AM → 1:25 PM2h 00m nonstop
Local times, typical schedule. Last flown 2026-05-29.
90%
chance on time
- On time (history)
- 100%
- Cancelled
- 0.0%
- Avg arrival delay
- 0 min
- Arrived on time 100% of the time (23 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (9 AM to noon: 95% on time; Noon to 3 PM: 75%).
- Short track record (23 flights), so its score leans on the airline's record at this hour.
Limited track record · 23 flights
Find Southwest 1562 fares Opens this date on Aviasales#2 · Southwest 3073
3:15 PM → 6:20 PM2h 05m nonstop
Local times, typical schedule. Last flown 2026-05-31.
81%
chance on time
- On time (history)
- 83%
- Cancelled
- 0.0%
- Avg arrival delay
- 18 min
- Arrived on time 83% of the time (24 flights, Jun 2025 to May 2026).
- Lands inside BWI's trouble window: 81% of its 43 ground stops and delay programs started between 2 PM and 8 PM.
- Short track record (24 flights), so its score leans on the airline's record at this hour.
Limited track record · 24 flights
Find Southwest 3073 fares Opens this date on Aviasales#3 · Southwest 693
2:40 PM → 5:40 PM2h 00m nonstop
Local times, typical schedule. Last flown 2026-04-06.
78%
chance on time
- On time (history)
- 79%
- Cancelled
- 6.7%
- Avg arrival delay
- 13 min
- Arrived on time 79% of the time (14 flights, Jun 2025 to May 2026).
- Leaves in this route's least on-time window (Noon to 3 PM: 75% on time; 9 AM to noon: 95%).
- Lands inside BWI's trouble window: 81% of its 43 ground stops and delay programs started between 2 PM and 8 PM.
- 73% of its delay minutes came from the plane arriving late from an earlier flight.
Limited track record · 14 flights
Find Southwest 693 fares Opens this date on Aviasales#4 · Southwest 1712
12:40 PM → 3:35 PM1h 55m nonstop
Local times, typical schedule. Last flown 2026-04-05.
75%
chance on time
- On time (history)
- 77%
- Cancelled
- 0.0%
- Avg arrival delay
- 30 min
- Arrived on time 77% of the time (13 flights, Jun 2025 to May 2026).
- Leaves in this route's least on-time window (Noon to 3 PM: 75% on time; 9 AM to noon: 95%).
- Lands inside BWI's trouble window: 81% of its 43 ground stops and delay programs started between 2 PM and 8 PM.
- 88% of its delay minutes came from the plane arriving late from an earlier flight.
Limited track record · 13 flights
Find Southwest 1712 fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- Southwest Airlines80%
346 flights · 81% on time as flown · 2.0% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM93%
30 flights · avg delay 2 min
- 9 AM to noon95%
79 flights · avg delay 5 min
- Noon to 3 PM75%
124 flights · avg delay 16 min
- 3 to 6 PM80%
86 flights · avg delay 15 min
Best day: Tuesday (88%). Worst: Friday (75%).
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 aircraft58%
- Air traffic control and airport volume30%
- Airline (crew, maintenance, boarding)12%
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
BHM to BWI questions
- What time of day is best to fly BHM to BWI?
- 9 AM to noon: 95% of flights arrived on time, against 75% for departures noon to 3 PM.
- Which airline is most on time from BHM to BWI?
- Southwest, with a season-adjusted 80% chance of operating and arriving on time over 346 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 BHM to BWI?
- June (71% on time); the best was September (91%), 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 BHM
- BWI to BHM (return)
- BHM to ATL 88%
- BHM to DFW 79%
- BHM to CLT 84%
- BHM to DEN 84%
- BHM to ORD 77%
- BHM to DCA 77%
- BHM to DAL 81%
- BHM to MCO 79%
- BHM to MIA 85%
- BHM to PHL 83%
- BHM to MDW 84%
- BHM to HOU 85%
Live status: FAA delays and ground stops