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3,176 km · Domestic

Nashville (BNA) – Seattle–Tacoma (SEA)

In July 2026, 366 flights operated between Nashville and Seattle–Tacoma (both directions), and 68.0% left on time, according to the US BTS.

Official · July 2026 according to the US BTS only airlines required to report on-time data to the US DOT

Flights per month

Only complete months are shown. A month appears once the source has published every day of it.

The most recent periods19 periods
PeriodFlights operated 2025Flights operated 2026Change vs last year
January162151▼ 6.8%
February1521520.0%
March179180▲ 0.6%
April195236▲ 21.0%
May246283▲ 15.0%
June345349▲ 1.2%
July374366▼ 2.1%
August349––
September269––
October230–in progress
November176––
December180––
Year to date (Jan–Jul)1,6531,717▲ 3.9%

On-time departures by month

Departures within 15 minutes of schedule.

The most recent periods19 periods
PeriodOn-time departures 2025On-time departures 2026Change vs last year
January86.4%80.1%▼ 7.3%
February82.9%90.1%▲ 8.7%
March86.0%83.3%▼ 3.1%
April83.1%88.6%▲ 6.6%
May80.5%80.9%▲ 0.5%
June70.4%75.6%▲ 7.4%
July68.2%68.0%▼ 0.3%
August65.0%––
September77.3%––
October82.2%–in progress
November83.5%––
December72.8%––
Year-to-date average (Jan–Jul)79.6%80.9%▲ 1.6%

Cancelled flights by month

The most recent periods19 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January211▲ 450.0%
February00–
March12▲ 100.0%
April20▼ 100.0%
May220.0%
June15▲ 400.0%
July24▲ 100.0%
August3––
September0––
October4–in progress
November0––
December0––
Year to date (Jan–Jul)1024▲ 140.0%

Airlines on this route

  1. Alaska Airlines 59.2%
  2. Delta Air Lines 33.5%
  3. Southwest Airlines 7.3%

Oct 1, 2024 – Jul 31, 2026

By direction

BNA → SEA

Scheduled flights
2,558
Flights operated
2,533
Cancelled
25 · 1.0%
On-time departures
77.3%

SEA → BNA

Scheduled flights
2,558
Flights operated
2,541
Cancelled
17 · 0.7%
On-time departures
79.0%

BNA → SEA and SEA → BNA counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
Alaska Airlines AS 3,030 59.2% 76.6% 29
Delta Air Lines DL 1,714 33.5% 86.5% 12
Southwest Airlines WN 372 7.3% 52.3% 1

Shares are of scheduled flights in the period shown. Codeshare flights are counted once, under the operating airline.

Flight timing & delays

Historical departures, grouped by the scheduled local time at the departure airport. These are recorded outcomes, not a forecast for your flight.

Times are local to the departure airport of each flight; both directions are combined.

US domestic sectors recorded by BTS

Source: the US BTS · Oct 12, 2024 → Jul 31, 2026

Lowest average delay07:00–08:004.2min · 1,264 recorded · 1,250 measured
Gap to highest-delay hour12.8min07:00 ↔ 18:00
Recorded flights5,116BNA–SEA

Departure hour

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
00:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 01:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 02:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 03:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 04:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 05:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 06:00 · Fewer than 200 measured departures · 14 recorded · 14 measured · Source: the US BTS 07:00 · 87.4% · 1,264 recorded · 1,250 measured · Source: the US BTS 08:00 · Fewer than 200 measured departures · 125 recorded · 124 measured · Source: the US BTS 09:00 · 88.0% · 738 recorded · 732 measured · Source: the US BTS 10:00 · 71.8% · 324 recorded · 323 measured · Source: the US BTS 11:00 · Fewer than 200 measured departures · 57 recorded · 57 measured · Source: the US BTS 12:00 · Fewer than 200 measured departures · 8 recorded · 8 measured · Source: the US BTS 13:00 · Fewer than 200 measured departures · 21 recorded · 21 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 33 recorded · 33 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 86 recorded · 85 measured · Source: the US BTS 16:00 · Fewer than 200 measured departures · 166 recorded · 165 measured · Source: the US BTS 17:00 · 73.5% · 1,484 recorded · 1,470 measured · Source: the US BTS 18:00 · 64.3% · 256 recorded · 255 measured · Source: the US BTS 19:00 · Fewer than 200 measured departures · 56 recorded · 56 measured · Source: the US BTS 20:00 · Fewer than 200 measured departures · 16 recorded · 16 measured · Source: the US BTS 21:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 22:00 · Fewer than 200 measured departures · 119 recorded · 119 measured · Source: the US BTS 23:00 · 78.9% · 349 recorded · 346 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

Average departure delay Partial coverage: only airlines that report on-time data to the US DOT
00:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 01:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 02:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 03:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 04:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 05:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 06:00 · Fewer than 200 measured departures · 14 recorded · 14 measured · Source: the US BTS 07:00 · 4.2 min · 1,264 recorded · 1,250 measured · Source: the US BTS 08:00 · Fewer than 200 measured departures · 125 recorded · 124 measured · Source: the US BTS 09:00 · 4.8 min · 738 recorded · 732 measured · Source: the US BTS 10:00 · 9.8 min · 324 recorded · 323 measured · Source: the US BTS 11:00 · Fewer than 200 measured departures · 57 recorded · 57 measured · Source: the US BTS 12:00 · Fewer than 200 measured departures · 8 recorded · 8 measured · Source: the US BTS 13:00 · Fewer than 200 measured departures · 21 recorded · 21 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 33 recorded · 33 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 86 recorded · 85 measured · Source: the US BTS 16:00 · Fewer than 200 measured departures · 166 recorded · 165 measured · Source: the US BTS 17:00 · 12.6 min · 1,484 recorded · 1,470 measured · Source: the US BTS 18:00 · 17.1 min · 256 recorded · 255 measured · Source: the US BTS 19:00 · Fewer than 200 measured departures · 56 recorded · 56 measured · Source: the US BTS 20:00 · Fewer than 200 measured departures · 16 recorded · 16 measured · Source: the US BTS 21:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 22:00 · Fewer than 200 measured departures · 119 recorded · 119 measured · Source: the US BTS 23:00 · 7.4 min · 349 recorded · 346 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

Recorded flights Partial coverage: only airlines that report on-time data to the US DOT
00:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 01:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 02:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 03:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 04:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 05:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 06:00 · 14 · 14 recorded · 14 measured · Source: the US BTS 07:00 · 1,264 · 1,264 recorded · 1,250 measured · Source: the US BTS 08:00 · 125 · 125 recorded · 124 measured · Source: the US BTS 09:00 · 738 · 738 recorded · 732 measured · Source: the US BTS 10:00 · 324 · 324 recorded · 323 measured · Source: the US BTS 11:00 · 57 · 57 recorded · 57 measured · Source: the US BTS 12:00 · 8 · 8 recorded · 8 measured · Source: the US BTS 13:00 · 21 · 21 recorded · 21 measured · Source: the US BTS 14:00 · 33 · 33 recorded · 33 measured · Source: the US BTS 15:00 · 86 · 86 recorded · 85 measured · Source: the US BTS 16:00 · 166 · 166 recorded · 165 measured · Source: the US BTS 17:00 · 1,484 · 1,484 recorded · 1,470 measured · Source: the US BTS 18:00 · 256 · 256 recorded · 255 measured · Source: the US BTS 19:00 · 56 · 56 recorded · 56 measured · Source: the US BTS 20:00 · 16 · 16 recorded · 16 measured · Source: the US BTS 21:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 22:00 · 119 · 119 recorded · 119 measured · Source: the US BTS 23:00 · 349 · 349 recorded · 346 measured · Source: the US BTS

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View the figures
Departure hourOn-time departuresAverage departure delayWith departure timeRecorded flights
00:00No observations———
01:00No observations———
02:00No observations———
03:00No observations———
04:00No observations———
05:00No observations———
06:00Fewer than 200 measured departures—1414
07:0087.4%4.2 min1,2501,264
08:00Fewer than 200 measured departures—124125
09:0088.0%4.8 min732738
10:0071.8%9.8 min323324
11:00Fewer than 200 measured departures—5757
12:00Fewer than 200 measured departures—88
13:00Fewer than 200 measured departures—2121
14:00Fewer than 200 measured departures—3333
15:00Fewer than 200 measured departures—8586
16:00Fewer than 200 measured departures—165166
17:0073.5%12.6 min1,4701,484
18:0064.3%17.1 min255256
19:00Fewer than 200 measured departures—5656
20:00Fewer than 200 measured departures—1616
21:00No observations———
22:00Fewer than 200 measured departures—119119
23:0078.9%7.4 min346349

Day of week

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
Monday · 77.3% · 744 recorded · 741 measured · Source: the US BTS Tuesday · 80.7% · 713 recorded · 711 measured · Source: the US BTS Wednesday · 81.4% · 710 recorded · 705 measured · Source: the US BTS Thursday · 75.8% · 740 recorded · 736 measured · Source: the US BTS Friday · 75.0% · 753 recorded · 743 measured · Source: the US BTS Saturday · 79.9% · 709 recorded · 702 measured · Source: the US BTS Sunday · 77.2% · 747 recorded · 736 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

Average departure delay Partial coverage: only airlines that report on-time data to the US DOT
Monday · 10.3 min · 744 recorded · 741 measured · Source: the US BTS Tuesday · 6.8 min · 713 recorded · 711 measured · Source: the US BTS Wednesday · 6.4 min · 710 recorded · 705 measured · Source: the US BTS Thursday · 12.1 min · 740 recorded · 736 measured · Source: the US BTS Friday · 10.9 min · 753 recorded · 743 measured · Source: the US BTS Saturday · 8.8 min · 709 recorded · 702 measured · Source: the US BTS Sunday · 10.6 min · 747 recorded · 736 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

Recorded flights Partial coverage: only airlines that report on-time data to the US DOT
Monday · 744 · 744 recorded · 741 measured · Source: the US BTS Tuesday · 713 · 713 recorded · 711 measured · Source: the US BTS Wednesday · 710 · 710 recorded · 705 measured · Source: the US BTS Thursday · 740 · 740 recorded · 736 measured · Source: the US BTS Friday · 753 · 753 recorded · 743 measured · Source: the US BTS Saturday · 709 · 709 recorded · 702 measured · Source: the US BTS Sunday · 747 · 747 recorded · 736 measured · Source: the US BTS

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View the figures
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
Monday77.3%10.3 min741744
Tuesday80.7%6.8 min711713
Wednesday81.4%6.4 min705710
Thursday75.8%12.1 min736740
Friday75.0%10.9 min743753
Saturday79.9%8.8 min702709
Sunday77.2%10.6 min736747

Month of year

Months combine the same calendar month across the years shown; this is a seasonal pattern, not a monthly time series.

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
Jan · 83.4% · 326 recorded · 313 measured · Source: the US BTS Feb · 86.5% · 304 recorded · 304 measured · Source: the US BTS Mar · 84.7% · 362 recorded · 359 measured · Source: the US BTS Apr · 86.1% · 433 recorded · 431 measured · Source: the US BTS May · 80.7% · 533 recorded · 529 measured · Source: the US BTS Jun · 73.1% · 700 recorded · 694 measured · Source: the US BTS Jul · 68.1% · 746 recorded · 740 measured · Source: the US BTS Aug · 65.0% · 352 recorded · 349 measured · Source: the US BTS Sep · 77.3% · 269 recorded · 269 measured · Source: the US BTS Oct · 85.0% · 377 recorded · 372 measured · Source: the US BTS Nov · 84.7% · 352 recorded · 352 measured · Source: the US BTS Dec · 77.1% · 362 recorded · 362 measured · Source: the US BTS

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Average departure delay Partial coverage: only airlines that report on-time data to the US DOT
Jan · 3.6 min · 326 recorded · 313 measured · Source: the US BTS Feb · 4.0 min · 304 recorded · 304 measured · Source: the US BTS Mar · 5.9 min · 362 recorded · 359 measured · Source: the US BTS Apr · 5.7 min · 433 recorded · 431 measured · Source: the US BTS May · 6.8 min · 533 recorded · 529 measured · Source: the US BTS Jun · 14.8 min · 700 recorded · 694 measured · Source: the US BTS Jul · 16.1 min · 746 recorded · 740 measured · Source: the US BTS Aug · 17.8 min · 352 recorded · 349 measured · Source: the US BTS Sep · 9.0 min · 269 recorded · 269 measured · Source: the US BTS Oct · 4.9 min · 377 recorded · 372 measured · Source: the US BTS Nov · 3.9 min · 352 recorded · 352 measured · Source: the US BTS Dec · 9.4 min · 362 recorded · 362 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

Recorded flights Partial coverage: only airlines that report on-time data to the US DOT
Jan · 326 · 326 recorded · 313 measured · Source: the US BTS Feb · 304 · 304 recorded · 304 measured · Source: the US BTS Mar · 362 · 362 recorded · 359 measured · Source: the US BTS Apr · 433 · 433 recorded · 431 measured · Source: the US BTS May · 533 · 533 recorded · 529 measured · Source: the US BTS Jun · 700 · 700 recorded · 694 measured · Source: the US BTS Jul · 746 · 746 recorded · 740 measured · Source: the US BTS Aug · 352 · 352 recorded · 349 measured · Source: the US BTS Sep · 269 · 269 recorded · 269 measured · Source: the US BTS Oct · 377 · 377 recorded · 372 measured · Source: the US BTS Nov · 352 · 352 recorded · 352 measured · Source: the US BTS Dec · 362 · 362 recorded · 362 measured · Source: the US BTS

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View the figures
Month of yearOn-time departuresAverage departure delayWith departure timeRecorded flights
Jan83.4%3.6 min313326
Feb86.5%4.0 min304304
Mar84.7%5.9 min359362
Apr86.1%5.7 min431433
May80.7%6.8 min529533
Jun73.1%14.8 min694700
Jul68.1%16.1 min740746
Aug65.0%17.8 min349352
Sep77.3%9.0 min269269
Oct85.0%4.9 min372377
Nov84.7%3.9 min352352
Dec77.1%9.4 min362362

Delay and on-time rates need at least 200 measured departures per bucket. Smaller samples remain visible in the flight-count chart. An empty slot means no observations, not zero flights.

Recorded outcomes

  • On time 77.5% 3,965
  • Delayed >15 min 21.7% 1,109
  • Cancelled 0.8% 42
  • Missing departure time 0.0% 0

All recorded flights with a known scheduled local time, counted once. Missing actual times are shown separately.

On time means departing no more than 15 minutes after schedule. Cancelled flights and flights missing departure times are excluded from the on-time rate and average delay.

Flight numbers on this route

27
27 of 27
Flight numbersBy direction DeparturesOn time
DL372 BNA → SEA 656 92.8%
AS522 SEA → BNA 591 79.4%
AS382 SEA → BNA 584 77.0%
DL815 SEA → BNA 582 82.8%
AS383 BNA → SEA 440 82.6%
AS281 BNA → SEA 297 84.1%
DL1710 SEA → BNA 241 86.6%
AS522 BNA → SEA 223 52.7%
AS411 BNA → SEA 222 72.3%
AS400 SEA → BNA 141 81.3%
DL1710 BNA → SEA 112 73.0%
WN4455 SEA → BNA 61 55.7%
WN1314 BNA → SEA 57 49.1%
AS623 BNA → SEA 52 94.2%
AS1345 SEA → BNA 51 84.3%
AS416 SEA → BNA 51 68.6%
AS469 BNA → SEA 51 60.0%
AS388 SEA → BNA 49 77.6%
WN4784 BNA → SEA 49 25.0%
AS521 BNA → SEA 45 64.4%
WN1150 SEA → BNA 42 85.7%
AS230 BNA → SEA 34 79.4%
AS504 BNA → SEA 34 76.5%
DL1921 SEA → BNA 33 93.9%
DL1922 BNA → SEA 33 87.9%
AS369 BNA → SEA 31 96.8%
DL1705 BNA → SEA 31 80.7%

Flight numbers are the codes sold on tickets. On shared flights one aircraft can carry several of them. Only numbers with at least 30 flights have a page.

Monthly figures
PeriodFlights operated Change vs last yearCancelled On-time departures
July 2026 366 −2.1% 4 68.0%
June 2026 349 +1.2% 5 75.6%
May 2026 283 +15.0% 2 80.9%
April 2026 236 +21.0% 0 88.6%
March 2026 180 +0.6% 2 83.3%
February 2026 152 +0.0% 0 90.1%
January 2026 151 −6.8% 11 80.1%
December 2025 180 −1.1% 0 72.8%
November 2025 176 +0.0% 0 83.5%
October 2025 230 +62.0% 4 82.2%
September 2025 269 0 77.3%
August 2025 349 3 65.0%
July 2025 374 2 68.2%
June 2025 345 1 70.4%
May 2025 246 2 80.5%
April 2025 195 2 83.1%
March 2025 179 1 86.0%
February 2025 152 0 82.9%
January 2025 162 2 86.4%
December 2024 182 0 81.3%
November 2024 176 0 85.8%
October 2024 142 1 89.4%

How to read this chart

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