Route on-time record
BNA to BHM: most on-time flights and the best time to fly
Nashville (Nashville International Airport) to Birmingham (Birmingham-Shuttlesworth International Airport). 455 nonstop flights in Jun 2025 to May 2026, 80% arrived within 15 minutes and 0.9% were cancelled. The most reliable flight number was Southwest 1157 at 9:45 AM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
BNA → BHM
Nashville to Birmingham: 455 nonstop flights a year
On time (12 months)
80%
Cancelled
0.9%
avg delay 10 min
Best time to leave
9 AM to noon
90% on time vs 71% after 9 PM
Most reliable airline
Southwest
79% chance on time
Lowest nonstop fare seen in the next two months: $272 (Southwest 4923 on 2026-10-26). 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 1157
9:45 AM → 10:50 AM1h 05m nonstop
Local times, typical schedule. Last flown 2026-05-29. Same departure also flew as Southwest 3110; its record covers all of them.
88%
chance on time
- On time (history)
- 92%
- Cancelled
- 0.0%
- Avg arrival delay
- 4 min
- Arrived on time 92% of the time (72 flights, Jun 2025 to May 2026).
- Never cancelled in 72 scheduled flights.
- Leaves in this route's most on-time window (9 AM to noon: 90% on time; After 9 PM: 71%).
- Departs outside BNA's trouble window (1 PM to 7 PM, when 64% of its 44 ground stops and delay programs started).
Moderate track record · 72 flights
Find Southwest 1157 fares Opens this date on Aviasales#2 · Southwest 3881
2:00 PM → 3:00 PM1h 00m nonstop
Local times, typical schedule. Last flown 2026-05-30.
77%
chance on time
- On time (history)
- 88%
- Cancelled
- 0.0%
- Avg arrival delay
- 7 min
- Arrived on time 88% of the time (8 flights, Jun 2025 to May 2026).
- Departs inside BNA's trouble window: 64% of its 44 ground stops and delay programs started between 1 PM and 7 PM.
- Short track record (8 flights), so its score leans on the airline's record at this hour.
Limited track record · 8 flights
Find Southwest 3881 fares Opens this date on Aviasales#3 · Southwest 447
9:50 PM → 10:50 PM1h 00m nonstop
Local times, typical schedule. Last flown 2026-05-31.
76%
chance on time
- On time (history)
- 76%
- Cancelled
- 0.0%
- Avg arrival delay
- 11 min
- Arrived on time 76% of the time (54 flights, Jun 2025 to May 2026).
- Never cancelled in 54 scheduled flights.
- Leaves in this route's least on-time window (After 9 PM: 71% on time; 9 AM to noon: 90%).
- Departs outside BNA's trouble window (1 PM to 7 PM, when 64% of its 44 ground stops and delay programs started).
Limited track record · 54 flights
Find Southwest 447 fares Opens this date on Aviasales#4 · Southwest 2186
10:35 PM → 11:35 PM1h 00m nonstop
Local times, typical schedule. Last flown 2026-04-06.
73%
chance on time
- On time (history)
- 72%
- Cancelled
- 3.0%
- Avg arrival delay
- 17 min
- Arrived on time 72% of the time (32 flights, Jun 2025 to May 2026).
- Cancelled 3.0% of the time (1 of 33).
- Leaves in this route's least on-time window (After 9 PM: 71% on time; 9 AM to noon: 90%).
- Departs outside BNA's trouble window (1 PM to 7 PM, when 64% of its 44 ground stops and delay programs started).
Limited track record · 32 flights
Find Southwest 2186 fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- Southwest Airlines79%
455 flights · 80% on time as flown · 0.9% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- 9 AM to noon90%
82 flights · avg delay 4 min
- Noon to 3 PM78%
202 flights · avg delay 11 min
- 3 to 6 PM81%
89 flights · avg delay 9 min
- After 9 PM71%
73 flights · avg delay 15 min
Best day: Tuesday (91%). Worst: Friday (72%).
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 aircraft53%
- Airline (crew, maintenance, boarding)35%
- Air traffic control and airport volume10%
- Severe weather2%
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
BNA to BHM questions
- What time of day is best to fly BNA to BHM?
- 9 AM to noon: 90% of flights arrived on time, against 71% for departures after 9 PM.
- Which airline is most on time from BNA to BHM?
- Southwest, with a season-adjusted 79% chance of operating and arriving on time over 455 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 BNA to BHM?
- July (67% on time); the best was January (90%), 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 BNA
- BHM to BNA (return)
- BNA to ORD 70%
- BNA to DCA 74%
- BNA to ATL 84%
- BNA to LGA 72%
- BNA to DEN 76%
- BNA to CLT 78%
- BNA to DFW 74%
- BNA to MCO 75%
- BNA to AUS 82%
- BNA to BOS 69%
- BNA to PHL 74%
- BNA to TPA 75%
Live status: FAA delays and ground stops