Route on-time record
SEA to BNA: most on-time flights and the best time to fly
Seattle (Seattle–Tacoma International Airport) to Nashville (Nashville International Airport). 1,475 nonstop flights in Jun 2025 to May 2026, 76% arrived within 15 minutes and 0.7% were cancelled. The most reliable flight number was Delta 1710 at 9:04 AM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
SEA → BNA
Seattle to Nashville: 1,475 nonstop flights a year
On time (12 months)
76%
Cancelled
0.7%
avg delay 12 min
Best time to leave
Before 9 AM
87% on time vs 75% after 9 PM
Most reliable airline
Delta
83% 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 · Delta 1710
9:04 AM → 3:37 PM4h 33m nonstop
Local times, typical schedule. Last flown 2026-05-31.
85%
chance on time
- On time (history)
- 84%
- Cancelled
- 1.1%
- Avg arrival delay
- 12 min
- Arrived on time 84% of the time (178 flights, Jun 2025 to May 2026).
- Departs outside SEA's trouble window (4 PM to 10 PM, when 54% of its 68 ground stops and delay programs started).
- Lands inside BNA's trouble window: 64% of its 44 ground stops and delay programs started between 1 PM and 7 PM.
Moderate track record · 178 flights
Find Delta 1710 fares Opens this date on Aviasales#2 · Delta 815
5:35 PM → 11:52 PM4h 24m nonstop
Local times, typical schedule. Last flown 2026-05-31.
83%
chance on time
- On time (history)
- 83%
- Cancelled
- 0.0%
- Avg arrival delay
- 11 min
- Arrived on time 83% of the time (290 flights, Jun 2025 to May 2026).
- Never cancelled in 290 scheduled flights.
- Departs inside SEA's trouble window: 54% of its 68 ground stops and delay programs started between 4 PM and 10 PM.
Strong track record · 290 flights
Find Delta 815 fares Opens this date on Aviasales#3 · Alaska 522
9:51 AM → 4:21 PM4h 30m nonstop
Local times, typical schedule. Last flown 2026-05-31.
75%
chance on time
- On time (history)
- 76%
- Cancelled
- 0.6%
- Avg arrival delay
- 11 min
- Arrived on time 76% of the time (352 flights, Jun 2025 to May 2026).
- Departs outside SEA's trouble window (4 PM to 10 PM, when 54% of its 68 ground stops and delay programs started).
- Lands inside BNA's trouble window: 64% of its 44 ground stops and delay programs started between 1 PM and 7 PM.
Strong track record · 352 flights
Find Alaska 522 fares Opens this date on Aviasales#4 · Alaska 388
5:19 PM → 11:59 PM4h 40m nonstop
Local times, typical schedule. Last flown 2026-05-31.
74%
chance on time
- On time (history)
- 82%
- Cancelled
- 0.0%
- Avg arrival delay
- 5 min
- Arrived on time 82% of the time (39 flights, Jun 2025 to May 2026).
- Never cancelled in 40 scheduled flights.
- Departs inside SEA's trouble window: 54% of its 68 ground stops and delay programs started between 4 PM and 10 PM.
Limited track record · 39 flights
Find Alaska 388 fares Opens this date on Aviasales#5 · Alaska 382
11:15 PM → 5:40 AM4h 25m nonstop
Local times, typical schedule. Last flown 2026-05-31.
69%
chance on time
- On time (history)
- 69%
- Cancelled
- 1.6%
- Avg arrival delay
- 14 min
- Arrived on time 69% of the time (314 flights, Jun 2025 to May 2026).
- Leaves in this route's least on-time window (After 9 PM: 75% on time; Before 9 AM: 87%).
- Departs outside SEA's trouble window (4 PM to 10 PM, when 54% of its 68 ground stops and delay programs started).
Strong track record · 314 flights
Find Alaska 382 fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- Delta Air Lines83%
504 flights · 84% on time as flown · 0.5% cancel
- Alaska Airlines73%
843 flights · 73% on time as flown · 1.0% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM87%
103 flights · avg delay 7 min
- 9 AM to noon76%
476 flights · avg delay 12 min
- 3 to 6 PM76%
629 flights · avg delay 12 min
- After 9 PM75%
265 flights · avg delay 14 min
Best day: Wednesday (83%). Worst: Friday (76%).
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
- Airline (crew, maintenance, boarding)40%
- Late-arriving aircraft35%
- Air traffic control and airport volume23%
- 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
SEA to BNA questions
- What time of day is best to fly SEA to BNA?
- Before 9 AM: 87% of flights arrived on time, against 75% for departures after 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 SEA to BNA?
- Delta, with a season-adjusted 83% chance of operating and arriving on time over 504 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 SEA to BNA?
- June (68% on time); the best was March (87%), 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 SEA
- BNA to SEA (return)
- SEA to LAX 83%
- SEA to PHX 79%
- SEA to SFO 69%
- SEA to ANC 74%
- SEA to DEN 77%
- SEA to LAS 77%
- SEA to ORD 75%
- SEA to GEG 81%
- SEA to DFW 77%
- SEA to PDX 82%
- SEA to SAN 78%
- SEA to SMF 81%
Most on-time flights from SEA on every route →
Live status: FAA delays and ground stops