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944 km · Domestic

Nashville (BNA) – Baltimore/Washington International Thurgood Marshall (BWI)

In July 2026, 292 flights operated between Nashville and Baltimore/Washington International Thurgood Marshall (both directions), and 56.5% 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
January248239▼ 3.6%
February248253▲ 2.0%
March317295▼ 6.9%
April346311▼ 10.1%
May352327▼ 7.1%
June328291▼ 11.3%
July333292▼ 12.3%
August338––
September332––
October336–in progress
November285––
December259––
Year to date (Jan–Jul)2,1722,008▼ 7.6%

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
January82.7%90.0%▲ 8.8%
February83.1%81.8%▼ 1.6%
March78.5%69.8%▼ 11.1%
April85.0%76.5%▼ 10.0%
May73.3%70.9%▼ 3.3%
June67.7%60.5%▼ 10.6%
July69.7%56.5%▼ 18.9%
August74.0%––
September83.1%––
October74.4%–in progress
November77.5%––
December75.7%––
Year-to-date average (Jan–Jul)77.1%72.3%▼ 6.3%

Cancelled flights by month

The most recent periods19 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January1521▲ 40.0%
February010–
March36▲ 100.0%
April02–
May50▼ 100.0%
June62▼ 66.7%
July128▼ 33.3%
August8––
September1––
October2–in progress
November1––
December6––
Year to date (Jan–Jul)4149▲ 19.5%

Airlines on this route

  1. Southwest Airlines 96.8%
  2. Spirit Airlines 3.2%

Oct 1, 2024 – Jul 31, 2026

By direction

BNA → BWI

Scheduled flights
3,362
Flights operated
3,307
Cancelled
55 · 1.6%
On-time departures
74.8%

BWI → BNA

Scheduled flights
3,343
Flights operated
3,290
Cancelled
53 · 1.6%
On-time departures
77.2%

BNA → BWI and BWI → BNA counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
Southwest Airlines WN 6,491 96.8% 76.0% 102
Spirit Airlines NK 214 3.2% 75.0% 6

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 delay05:00–06:00-3.3min · 232 recorded · 228 measured
Gap to highest-delay hour32.5min05:00 ↔ 20:00
Recorded flights6,705BNA–BWI

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 · 99.6% · 232 recorded · 228 measured · Source: the US BTS 06:00 · 93.9% · 764 recorded · 757 measured · Source: the US BTS 07:00 · 92.0% · 251 recorded · 249 measured · Source: the US BTS 08:00 · 93.4% · 373 recorded · 365 measured · Source: the US BTS 09:00 · 86.5% · 667 recorded · 661 measured · Source: the US BTS 10:00 · 87.4% · 246 recorded · 238 measured · Source: the US BTS 11:00 · Fewer than 200 measured departures · 172 recorded · 171 measured · Source: the US BTS 12:00 · 77.4% · 263 recorded · 261 measured · Source: the US BTS 13:00 · 64.7% · 609 recorded · 598 measured · Source: the US BTS 14:00 · 73.5% · 381 recorded · 374 measured · Source: the US BTS 15:00 · 78.5% · 304 recorded · 298 measured · Source: the US BTS 16:00 · 64.4% · 299 recorded · 295 measured · Source: the US BTS 17:00 · 63.9% · 422 recorded · 415 measured · Source: the US BTS 18:00 · 63.6% · 514 recorded · 506 measured · Source: the US BTS 19:00 · 63.1% · 505 recorded · 490 measured · Source: the US BTS 20:00 · 56.5% · 293 recorded · 287 measured · Source: the US BTS 21:00 · 62.6% · 314 recorded · 310 measured · Source: the US BTS 22:00 · Fewer than 200 measured departures · 96 recorded · 94 measured · Source: the US BTS 23:00 · No observations · 0 recorded · 0 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 · -3.3 min · 232 recorded · 228 measured · Source: the US BTS 06:00 · 0.5 min · 764 recorded · 757 measured · Source: the US BTS 07:00 · 0.7 min · 251 recorded · 249 measured · Source: the US BTS 08:00 · 2.0 min · 373 recorded · 365 measured · Source: the US BTS 09:00 · 5.7 min · 667 recorded · 661 measured · Source: the US BTS 10:00 · 4.8 min · 246 recorded · 238 measured · Source: the US BTS 11:00 · Fewer than 200 measured departures · 172 recorded · 171 measured · Source: the US BTS 12:00 · 9.1 min · 263 recorded · 261 measured · Source: the US BTS 13:00 · 16.9 min · 609 recorded · 598 measured · Source: the US BTS 14:00 · 14.1 min · 381 recorded · 374 measured · Source: the US BTS 15:00 · 9.7 min · 304 recorded · 298 measured · Source: the US BTS 16:00 · 26.9 min · 299 recorded · 295 measured · Source: the US BTS 17:00 · 21.2 min · 422 recorded · 415 measured · Source: the US BTS 18:00 · 20.7 min · 514 recorded · 506 measured · Source: the US BTS 19:00 · 20.4 min · 505 recorded · 490 measured · Source: the US BTS 20:00 · 29.2 min · 293 recorded · 287 measured · Source: the US BTS 21:00 · 21.9 min · 314 recorded · 310 measured · Source: the US BTS 22:00 · Fewer than 200 measured departures · 96 recorded · 94 measured · Source: the US BTS 23:00 · No observations · 0 recorded · 0 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 · 232 · 232 recorded · 228 measured · Source: the US BTS 06:00 · 764 · 764 recorded · 757 measured · Source: the US BTS 07:00 · 251 · 251 recorded · 249 measured · Source: the US BTS 08:00 · 373 · 373 recorded · 365 measured · Source: the US BTS 09:00 · 667 · 667 recorded · 661 measured · Source: the US BTS 10:00 · 246 · 246 recorded · 238 measured · Source: the US BTS 11:00 · 172 · 172 recorded · 171 measured · Source: the US BTS 12:00 · 263 · 263 recorded · 261 measured · Source: the US BTS 13:00 · 609 · 609 recorded · 598 measured · Source: the US BTS 14:00 · 381 · 381 recorded · 374 measured · Source: the US BTS 15:00 · 304 · 304 recorded · 298 measured · Source: the US BTS 16:00 · 299 · 299 recorded · 295 measured · Source: the US BTS 17:00 · 422 · 422 recorded · 415 measured · Source: the US BTS 18:00 · 514 · 514 recorded · 506 measured · Source: the US BTS 19:00 · 505 · 505 recorded · 490 measured · Source: the US BTS 20:00 · 293 · 293 recorded · 287 measured · Source: the US BTS 21:00 · 314 · 314 recorded · 310 measured · Source: the US BTS 22:00 · 96 · 96 recorded · 94 measured · Source: the US BTS 23:00 · No observations · 0 recorded · 0 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———
05:0099.6%-3.3 min228232
06:0093.9%0.5 min757764
07:0092.0%0.7 min249251
08:0093.4%2.0 min365373
09:0086.5%5.7 min661667
10:0087.4%4.8 min238246
11:00Fewer than 200 measured departures—171172
12:0077.4%9.1 min261263
13:0064.7%16.9 min598609
14:0073.5%14.1 min374381
15:0078.5%9.7 min298304
16:0064.4%26.9 min295299
17:0063.9%21.2 min415422
18:0063.6%20.7 min506514
19:0063.1%20.4 min490505
20:0056.5%29.2 min287293
21:0062.6%21.9 min310314
22:00Fewer than 200 measured departures—9496
23:00No observations———

Day of week

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
Monday · 72.5% · 1,013 recorded · 991 measured · Source: the US BTS Tuesday · 79.3% · 905 recorded · 893 measured · Source: the US BTS Wednesday · 84.2% · 888 recorded · 881 measured · Source: the US BTS Thursday · 73.5% · 1,015 recorded · 1,008 measured · Source: the US BTS Friday · 75.2% · 1,027 recorded · 1,005 measured · Source: the US BTS Saturday · 76.7% · 830 recorded · 817 measured · Source: the US BTS Sunday · 72.0% · 1,027 recorded · 1,002 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 · 15.4 min · 1,013 recorded · 991 measured · Source: the US BTS Tuesday · 9.5 min · 905 recorded · 893 measured · Source: the US BTS Wednesday · 6.6 min · 888 recorded · 881 measured · Source: the US BTS Thursday · 13.2 min · 1,015 recorded · 1,008 measured · Source: the US BTS Friday · 15.0 min · 1,027 recorded · 1,005 measured · Source: the US BTS Saturday · 12.5 min · 830 recorded · 817 measured · Source: the US BTS Sunday · 15.4 min · 1,027 recorded · 1,002 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 · 1,013 · 1,013 recorded · 991 measured · Source: the US BTS Tuesday · 905 · 905 recorded · 893 measured · Source: the US BTS Wednesday · 888 · 888 recorded · 881 measured · Source: the US BTS Thursday · 1,015 · 1,015 recorded · 1,008 measured · Source: the US BTS Friday · 1,027 · 1,027 recorded · 1,005 measured · Source: the US BTS Saturday · 830 · 830 recorded · 817 measured · Source: the US BTS Sunday · 1,027 · 1,027 recorded · 1,002 measured · Source: the US BTS

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View the figures
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
Monday72.5%15.4 min9911,013
Tuesday79.3%9.5 min893905
Wednesday84.2%6.6 min881888
Thursday73.5%13.2 min1,0081,015
Friday75.2%15.0 min1,0051,027
Saturday76.7%12.5 min817830
Sunday72.0%15.4 min1,0021,027

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 · 86.2% · 523 recorded · 487 measured · Source: the US BTS Feb · 82.4% · 511 recorded · 501 measured · Source: the US BTS Mar · 74.4% · 621 recorded · 612 measured · Source: the US BTS Apr · 81.0% · 659 recorded · 657 measured · Source: the US BTS May · 72.2% · 684 recorded · 679 measured · Source: the US BTS Jun · 64.3% · 627 recorded · 619 measured · Source: the US BTS Jul · 63.5% · 645 recorded · 625 measured · Source: the US BTS Aug · 74.0% · 346 recorded · 338 measured · Source: the US BTS Sep · 83.1% · 333 recorded · 332 measured · Source: the US BTS Oct · 76.7% · 573 recorded · 571 measured · Source: the US BTS Nov · 83.1% · 606 recorded · 605 measured · Source: the US BTS Dec · 77.2% · 577 recorded · 571 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
Jan · 6.1 min · 523 recorded · 487 measured · Source: the US BTS Feb · 6.4 min · 511 recorded · 501 measured · Source: the US BTS Mar · 12.3 min · 621 recorded · 612 measured · Source: the US BTS Apr · 9.8 min · 659 recorded · 657 measured · Source: the US BTS May · 16.4 min · 684 recorded · 679 measured · Source: the US BTS Jun · 21.5 min · 627 recorded · 619 measured · Source: the US BTS Jul · 24.2 min · 645 recorded · 625 measured · Source: the US BTS Aug · 11.1 min · 346 recorded · 338 measured · Source: the US BTS Sep · 7.8 min · 333 recorded · 332 measured · Source: the US BTS Oct · 10.8 min · 573 recorded · 571 measured · Source: the US BTS Nov · 7.7 min · 606 recorded · 605 measured · Source: the US BTS Dec · 11.5 min · 577 recorded · 571 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 · 523 · 523 recorded · 487 measured · Source: the US BTS Feb · 511 · 511 recorded · 501 measured · Source: the US BTS Mar · 621 · 621 recorded · 612 measured · Source: the US BTS Apr · 659 · 659 recorded · 657 measured · Source: the US BTS May · 684 · 684 recorded · 679 measured · Source: the US BTS Jun · 627 · 627 recorded · 619 measured · Source: the US BTS Jul · 645 · 645 recorded · 625 measured · Source: the US BTS Aug · 346 · 346 recorded · 338 measured · Source: the US BTS Sep · 333 · 333 recorded · 332 measured · Source: the US BTS Oct · 573 · 573 recorded · 571 measured · Source: the US BTS Nov · 606 · 606 recorded · 605 measured · Source: the US BTS Dec · 577 · 577 recorded · 571 measured · Source: the US BTS

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View the figures
Month of yearOn-time departuresAverage departure delayWith departure timeRecorded flights
Jan86.2%6.1 min487523
Feb82.4%6.4 min501511
Mar74.4%12.3 min612621
Apr81.0%9.8 min657659
May72.2%16.4 min679684
Jun64.3%21.5 min619627
Jul63.5%24.2 min625645
Aug74.0%11.1 min338346
Sep83.1%7.8 min332333
Oct76.7%10.8 min571573
Nov83.1%7.7 min605606
Dec77.2%11.5 min571577

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 74.8% 5,013
  • Delayed >15 min 23.6% 1,584
  • Cancelled 1.6% 108
  • 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

96
96 of 96
Flight numbersBy direction DeparturesOn time
WN2344 BNA → BWI 120 87.2%
WN2812 BNA → BWI 97 78.4%
WN1227 BWI → BNA 80 87.0%
WN206 BWI → BNA 77 86.7%
WN1247 BNA → BWI 70 77.1%
WN1400 BNA → BWI 64 69.8%
WN4136 BNA → BWI 64 85.5%
WN961 BNA → BWI 64 96.9%
WN4085 BWI → BNA 63 77.4%
WN1591 BWI → BNA 61 81.7%
WN2794 BNA → BWI 61 47.5%
WN1102 BWI → BNA 60 63.8%
WN1051 BWI → BNA 58 86.2%
WN1251 BWI → BNA 58 77.2%
WN1358 BWI → BNA 58 64.9%
WN2231 BWI → BNA 58 87.3%
WN3304 BWI → BNA 58 96.6%
WN467 BNA → BWI 58 30.4%
WN548 BNA → BWI 58 94.6%
WN843 BWI → BNA 58 80.0%
WN1345 BNA → BWI 57 56.1%
WN879 BWI → BNA 57 60.7%
WN943 BNA → BWI 57 98.3%
WN2047 BNA → BWI 56 88.9%
WN459 BNA → BWI 55 94.1%
WN468 BNA → BWI 54 25.9%
WN2318 BWI → BNA 52 82.7%
WN606 BNA → BWI 52 54.9%
WN945 BNA → BWI 51 87.8%
WN2451 BWI → BNA 50 100.0%
WN2659 BWI → BNA 50 92.0%
WN275 BNA → BWI 50 85.7%
WN2994 BNA → BWI 50 58.0%
WN3944 BWI → BNA 50 74.0%
WN422 BWI → BNA 50 74.0%
WN549 BNA → BWI 50 56.0%
WN874 BWI → BNA 50 92.0%
WN960 BNA → BWI 50 68.0%
WN1005 BNA → BWI 49 98.0%
WN3701 BWI → BNA 49 68.8%
WN4306 BNA → BWI 49 62.5%
WN462 BNA → BWI 49 85.7%
WN3403 BWI → BNA 48 72.3%
WN2548 BNA → BWI 47 88.9%
WN2701 BWI → BNA 47 97.7%
WN550 BNA → BWI 47 66.0%
NK2581 BWI → BNA 46 86.7%
WN3535 BWI → BNA 46 95.7%
NK2582 BNA → BWI 45 70.5%
WN2195 BWI → BNA 44 74.4%
WN1014 BWI → BNA 43 51.2%
WN1391 BNA → BWI 42 85.7%
WN2433 BWI → BNA 42 69.1%
WN3440 BNA → BWI 42 95.2%
WN3665 BWI → BNA 42 42.9%
WN4111 BNA → BWI 42 52.4%
WN496 BWI → BNA 42 80.0%
WN748 BNA → BWI 42 57.1%
WN952 BNA → BWI 42 100.0%
WN1086 BWI → BNA 41 73.2%
WN1592 BWI → BNA 40 82.1%
WN2589 BWI → BNA 39 89.7%
WN3777 BWI → BNA 39 92.3%
WN687 BWI → BNA 38 61.8%
NK2239 BNA → BWI 36 65.7%
NK2240 BWI → BNA 36 57.1%
WN1061 BNA → BWI 36 97.1%
WN3867 BNA → BWI 36 74.3%
WN298 BNA → BWI 35 30.3%
WN4488 BNA → BWI 35 54.6%
WN1162 BNA → BWI 34 97.1%
WN2911 BNA → BWI 34 97.1%
WN3245 BWI → BNA 34 54.6%
WN1324 BNA → BWI 33 63.6%
WN1539 BNA → BWI 33 41.9%
WN2065 BNA → BWI 33 93.9%
WN2652 BWI → BNA 33 90.9%
WN3044 BWI → BNA 33 84.9%
WN3363 BWI → BNA 33 63.6%
WN487 BWI → BNA 33 78.8%
WN686 BWI → BNA 33 69.7%
WN753 BNA → BWI 33 84.9%
WN1050 BWI → BNA 32 100.0%
WN1194 BNA → BWI 32 68.8%
WN1485 BWI → BNA 32 90.6%
WN1853 BNA → BWI 32 84.4%
WN2940 BWI → BNA 32 81.3%
WN3347 BNA → BWI 32 29.0%
WN3471 BNA → BWI 32 50.0%
WN1217 BWI → BNA 31 96.8%
WN1272 BWI → BNA 31 77.4%
WN1283 BWI → BNA 31 58.1%
WN2699 BWI → BNA 31 67.7%
WN3384 BWI → BNA 31 87.1%
WN374 BNA → BWI 31 48.4%
WN4520 BNA → BWI 30 76.7%

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 292 −12.3% 8 56.5%
June 2026 291 −11.3% 2 60.5%
May 2026 327 −7.1% 0 70.9%
April 2026 311 −10.1% 2 76.5%
March 2026 295 −6.9% 6 69.8%
February 2026 253 +2.0% 10 81.8%
January 2026 239 −3.6% 21 90.0%
December 2025 259 −17.0% 6 75.7%
November 2025 285 −10.9% 1 77.5%
October 2025 336 +43.0% 2 74.4%
September 2025 332 1 83.1%
August 2025 338 8 74.0%
July 2025 333 12 69.7%
June 2025 328 6 67.7%
May 2025 352 5 73.3%
April 2025 346 0 85.0%
March 2025 317 3 78.5%
February 2025 248 0 83.1%
January 2025 248 15 82.7%
December 2024 312 0 78.5%
November 2024 320 0 88.1%
October 2024 235 0 80.0%

How to read this chart

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