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Route on-time record

BNA to SEA: most on-time flights and the best time to fly

Nashville (Nashville International Airport) to Seattle (Seattle–Tacoma International Airport). 1,475 nonstop flights in Jun 2025 to May 2026, 73% arrived within 15 minutes and 0.9% were cancelled. The most reliable flight number was Delta 372 at 7:00 AM.

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BNA → SEA

Nashville to Seattle: 1,475 nonstop flights a year

On time (12 months)

73%

Cancelled

0.9%

avg delay 15 min

Best time to leave

9 AM to noon

84% on time vs 54% 6 to 9 PM

Most reliable airline

Delta

81% chance on time

Check BNA to SEA fares

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. #1 · Delta 372

    7:00 AM → 10:04 AM5h 05m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    84%

    chance on time

    On time (history)
    85%
    Cancelled
    0.5%
    Avg arrival delay
    10 min
    • Arrived on time 85% of the time (362 flights, Jun 2025 to May 2026).
    • Departs outside BNA's trouble window (1 PM to 7 PM, when 64% of its 44 ground stops and delay programs started).

    Strong track record · 362 flights

    Find Delta 372 fares Opens this date on Aviasales

  2. #2 · Alaska 281

    7:00 AM → 10:13 AM5h 13m nonstop

    Local times, typical schedule. Last flown 2026-05-12.

    81%

    chance on time

    On time (history)
    82%
    Cancelled
    0.9%
    Avg arrival delay
    7 min
    • Arrived on time 82% of the time (221 flights, Jun 2025 to May 2026).
    • Departs outside BNA's trouble window (1 PM to 7 PM, when 64% of its 44 ground stops and delay programs started).

    Strong track record · 221 flights

    Find Alaska 281 fares Opens this date on Aviasales

  3. #3 · Alaska 411

    9:00 AM → 12:07 PM5h 07m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    80%

    chance on time

    On time (history)
    87%
    Cancelled
    0.0%
    Avg arrival delay
    7 min
    • Arrived on time 87% of the time (30 flights, Jun 2025 to May 2026).
    • Never cancelled in 30 scheduled flights.
    • Leaves in this route's most on-time window (9 AM to noon: 84% on time; 6 to 9 PM: 54%).
    • 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 · 30 flights

    Find Alaska 411 fares Opens this date on Aviasales

  4. #4 · Delta 1705

    4:24 PM → 7:29 PM5h 05m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    75%

    chance on time

    On time (history)
    68%
    Cancelled
    0.0%
    Avg arrival delay
    11 min
    • Arrived on time 68% of the time (25 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.
    • Lands inside SEA's trouble window: 54% of its 68 ground stops and delay programs started between 4 PM and 10 PM.

    Limited track record · 25 flights

    Find Delta 1705 fares Opens this date on Aviasales

  5. #5 · Alaska 383

    7:11 AM → 10:19 AM5h 08m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    71%

    chance on time

    On time (history)
    71%
    Cancelled
    3.2%
    Avg arrival delay
    15 min
    • Arrived on time 71% of the time (211 flights, Jun 2025 to May 2026).
    • Cancelled 3.2% of the time (7 of 218).
    • Departs outside BNA's trouble window (1 PM to 7 PM, when 64% of its 44 ground stops and delay programs started).

    Strong track record · 211 flights

    Find Alaska 383 fares Opens this date on Aviasales

  6. #6 · Alaska 633

    7:03 PM → 10:11 PM5h 08m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    62%

    chance on time

    On time (history)
    74%
    Cancelled
    0.0%
    Avg arrival delay
    22 min
    • Arrived on time 74% of the time (19 flights, Jun 2025 to May 2026).
    • Leaves in this route's least on-time window (6 to 9 PM: 54% on time; 9 AM to noon: 84%).
    • 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 · 19 flights

    Find Alaska 633 fares Opens this date on Aviasales

  7. #7 · Alaska 524

    6:05 PM → 9:17 PM5h 12m nonstop

    Local times, typical schedule. Last flown 2026-05-12.

    58%

    chance on time

    On time (history)
    65%
    Cancelled
    0.0%
    Avg arrival delay
    15 min
    • Arrived on time 65% of the time (20 flights, Jun 2025 to May 2026).
    • Leaves in this route's least on-time window (6 to 9 PM: 54% on time; 9 AM to noon: 84%).
    • Departs inside BNA's trouble window: 64% of its 44 ground stops and delay programs started between 1 PM and 7 PM.
    • Lands inside SEA's trouble window: 54% of its 68 ground stops and delay programs started between 4 PM and 10 PM.

    Limited track record · 20 flights

    Find Alaska 524 fares Opens this date on Aviasales

Airlines on this route

Season-adjusted chance of operating and arriving on time.

  • Delta Air Lines81%

    504 flights · 83% on time as flown · 0.5% cancel

  • Alaska Airlines69%

    843 flights · 70% on time as flown · 1.4% cancel

On time by departure time

All airlines, scheduled local departure, Jun 2025 to May 2026.

  • Before 9 AM80%

    734 flights · avg delay 12 min

  • 9 AM to noon84%

    145 flights · avg delay 8 min

  • 3 to 6 PM69%

    339 flights · avg delay 18 min

  • 6 to 9 PM54%

    215 flights · avg delay 23 min

Best day: Wednesday (85%). Worst: Thursday (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.

J
78
F
83
M
82
A
82
M
79
J
76
J
74
A
77
S
82
O
87
N
84
D
73

What delays this route

  • Airline (crew, maintenance, boarding)34%
  • Late-arriving aircraft34%
  • Air traffic control and airport volume27%
  • 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

Finding the most reliable connections from BNA to SEA…

BNA to SEA questions

What time of day is best to fly BNA to SEA?
9 AM to noon: 84% of flights arrived on time, against 54% for departures 6 to 9 PM.
Which airline is most on time from BNA to SEA?
Delta, with a season-adjusted 81% 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 BNA to SEA?
December (73% on time); the best was October (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.

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