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871 km · Domestic

Nashville (BNA) – Washington Dulles (IAD)

In July 2026, 191 flights operated between Nashville and Washington Dulles (both directions), and 77.5% 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
January114108▼ 5.3%
February112131▲ 17.0%
March127173▲ 36.2%
April161177▲ 9.9%
May210172▼ 18.1%
June238184▼ 22.7%
July198191▼ 3.5%
August200––
September158––
October186–in progress
November176––
December141––
Year to date (Jan–Jul)1,1601,136▼ 2.1%

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
January82.5%83.3%▲ 1.0%
February86.6%87.0%▲ 0.5%
March83.5%81.5%▼ 2.4%
April83.2%87.6%▲ 5.3%
May81.9%82.6%▲ 0.9%
June81.5%80.4%▼ 1.3%
July77.8%77.5%▼ 0.4%
August89.5%––
September89.9%––
October87.1%–in progress
November78.4%––
December80.1%––
Year-to-date average (Jan–Jul)82.4%82.8%▲ 0.5%

Cancelled flights by month

The most recent periods19 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January38▲ 166.7%
February05–
March01–
April01–
May00–
June00–
July45▲ 25.0%
August0––
September0––
October0–in progress
November0––
December0––
Year to date (Jan–Jul)720▲ 185.7%

Airlines on this route

  1. United Airlines 93.7%
  2. Allegiant Air 3.8%
  3. Republic Airways 2.4%
  4. Southwest Airlines 0.1%

Oct 1, 2024 – Jul 31, 2026

By direction

BNA → IAD

Scheduled flights
1,806
Flights operated
1,790
Cancelled
16 · 0.9%
On-time departures
80.8%

IAD → BNA

Scheduled flights
1,805
Flights operated
1,794
Cancelled
11 · 0.6%
On-time departures
87.4%

BNA → IAD and IAD → BNA counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
United Airlines UA 3,385 93.7% 84.3% 25
Allegiant Air G4 138 3.8% 78.7% 2
Republic Airways YX 86 2.4% 86.0% 0
Southwest Airlines WN 2 0.1% 100.0% 0

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 delay08:00–09:002.6min · 996 recorded · 986 measured
Gap to highest-delay hour17.9min08:00 ↔ 18:00
Recorded flights3,611BNA–IAD

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 · 1 recorded · 1 measured · Source: the US BTS 07:00 · Fewer than 200 measured departures · 5 recorded · 5 measured · Source: the US BTS 08:00 · 92.3% · 996 recorded · 986 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 22 recorded · 22 measured · Source: the US BTS 10:00 · Fewer than 200 measured departures · 2 recorded · 2 measured · Source: the US BTS 11:00 · Fewer than 200 measured departures · 140 recorded · 139 measured · Source: the US BTS 12:00 · 92.5% · 377 recorded · 372 measured · Source: the US BTS 13:00 · 82.4% · 751 recorded · 748 measured · Source: the US BTS 14:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 92 recorded · 91 measured · Source: the US BTS 16:00 · Fewer than 200 measured departures · 6 recorded · 6 measured · Source: the US BTS 17:00 · 80.9% · 625 recorded · 622 measured · Source: the US BTS 18:00 · 70.9% · 571 recorded · 567 measured · Source: the US BTS 19:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 20:00 · Fewer than 200 measured departures · 5 recorded · 5 measured · Source: the US BTS 21:00 · Fewer than 200 measured departures · 17 recorded · 17 measured · Source: the US BTS 22:00 · Fewer than 200 measured departures · 1 recorded · 1 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 · No observations · 0 recorded · 0 measured · Source: the US BTS 06:00 · Fewer than 200 measured departures · 1 recorded · 1 measured · Source: the US BTS 07:00 · Fewer than 200 measured departures · 5 recorded · 5 measured · Source: the US BTS 08:00 · 2.6 min · 996 recorded · 986 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 22 recorded · 22 measured · Source: the US BTS 10:00 · Fewer than 200 measured departures · 2 recorded · 2 measured · Source: the US BTS 11:00 · Fewer than 200 measured departures · 140 recorded · 139 measured · Source: the US BTS 12:00 · 4.6 min · 377 recorded · 372 measured · Source: the US BTS 13:00 · 15.0 min · 751 recorded · 748 measured · Source: the US BTS 14:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 92 recorded · 91 measured · Source: the US BTS 16:00 · Fewer than 200 measured departures · 6 recorded · 6 measured · Source: the US BTS 17:00 · 17.0 min · 625 recorded · 622 measured · Source: the US BTS 18:00 · 20.5 min · 571 recorded · 567 measured · Source: the US BTS 19:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 20:00 · Fewer than 200 measured departures · 5 recorded · 5 measured · Source: the US BTS 21:00 · Fewer than 200 measured departures · 17 recorded · 17 measured · Source: the US BTS 22:00 · Fewer than 200 measured departures · 1 recorded · 1 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 · No observations · 0 recorded · 0 measured · Source: the US BTS 06:00 · 1 · 1 recorded · 1 measured · Source: the US BTS 07:00 · 5 · 5 recorded · 5 measured · Source: the US BTS 08:00 · 996 · 996 recorded · 986 measured · Source: the US BTS 09:00 · 22 · 22 recorded · 22 measured · Source: the US BTS 10:00 · 2 · 2 recorded · 2 measured · Source: the US BTS 11:00 · 140 · 140 recorded · 139 measured · Source: the US BTS 12:00 · 377 · 377 recorded · 372 measured · Source: the US BTS 13:00 · 751 · 751 recorded · 748 measured · Source: the US BTS 14:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 15:00 · 92 · 92 recorded · 91 measured · Source: the US BTS 16:00 · 6 · 6 recorded · 6 measured · Source: the US BTS 17:00 · 625 · 625 recorded · 622 measured · Source: the US BTS 18:00 · 571 · 571 recorded · 567 measured · Source: the US BTS 19:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 20:00 · 5 · 5 recorded · 5 measured · Source: the US BTS 21:00 · 17 · 17 recorded · 17 measured · Source: the US BTS 22:00 · 1 · 1 recorded · 1 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———
05:00No observations———
06:00Fewer than 200 measured departures—11
07:00Fewer than 200 measured departures—55
08:0092.3%2.6 min986996
09:00Fewer than 200 measured departures—2222
10:00Fewer than 200 measured departures—22
11:00Fewer than 200 measured departures—139140
12:0092.5%4.6 min372377
13:0082.4%15.0 min748751
14:00No observations———
15:00Fewer than 200 measured departures—9192
16:00Fewer than 200 measured departures—66
17:0080.9%17.0 min622625
18:0070.9%20.5 min567571
19:00No observations———
20:00Fewer than 200 measured departures—55
21:00Fewer than 200 measured departures—1717
22:00Fewer than 200 measured departures—11
23:00No observations———

Day of week

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
Monday · 83.0% · 524 recorded · 518 measured · Source: the US BTS Tuesday · 86.4% · 465 recorded · 463 measured · Source: the US BTS Wednesday · 87.4% · 492 recorded · 491 measured · Source: the US BTS Thursday · 83.1% · 565 recorded · 562 measured · Source: the US BTS Friday · 84.0% · 522 recorded · 518 measured · Source: the US BTS Saturday · 84.2% · 489 recorded · 487 measured · Source: the US BTS Sunday · 81.3% · 554 recorded · 545 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 · 15.5 min · 524 recorded · 518 measured · Source: the US BTS Tuesday · 10.2 min · 465 recorded · 463 measured · Source: the US BTS Wednesday · 9.1 min · 492 recorded · 491 measured · Source: the US BTS Thursday · 10.7 min · 565 recorded · 562 measured · Source: the US BTS Friday · 12.8 min · 522 recorded · 518 measured · Source: the US BTS Saturday · 9.5 min · 489 recorded · 487 measured · Source: the US BTS Sunday · 11.2 min · 554 recorded · 545 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 · 524 · 524 recorded · 518 measured · Source: the US BTS Tuesday · 465 · 465 recorded · 463 measured · Source: the US BTS Wednesday · 492 · 492 recorded · 491 measured · Source: the US BTS Thursday · 565 · 565 recorded · 562 measured · Source: the US BTS Friday · 522 · 522 recorded · 518 measured · Source: the US BTS Saturday · 489 · 489 recorded · 487 measured · Source: the US BTS Sunday · 554 · 554 recorded · 545 measured · Source: the US BTS

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View the figures
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
Monday83.0%15.5 min518524
Tuesday86.4%10.2 min463465
Wednesday87.4%9.1 min491492
Thursday83.1%10.7 min562565
Friday84.0%12.8 min518522
Saturday84.2%9.5 min487489
Sunday81.3%11.2 min545554

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 · 82.9% · 233 recorded · 222 measured · Source: the US BTS Feb · 86.8% · 248 recorded · 243 measured · Source: the US BTS Mar · 82.3% · 301 recorded · 300 measured · Source: the US BTS Apr · 85.5% · 339 recorded · 338 measured · Source: the US BTS May · 82.2% · 382 recorded · 382 measured · Source: the US BTS Jun · 81.0% · 422 recorded · 422 measured · Source: the US BTS Jul · 77.6% · 398 recorded · 389 measured · Source: the US BTS Aug · 89.5% · 200 recorded · 200 measured · Source: the US BTS Sep · Fewer than 200 measured departures · 158 recorded · 158 measured · Source: the US BTS Oct · 89.5% · 306 recorded · 306 measured · Source: the US BTS Nov · 85.0% · 354 recorded · 354 measured · Source: the US BTS Dec · 84.8% · 270 recorded · 270 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 · 9.7 min · 233 recorded · 222 measured · Source: the US BTS Feb · 5.0 min · 248 recorded · 243 measured · Source: the US BTS Mar · 16.0 min · 301 recorded · 300 measured · Source: the US BTS Apr · 7.0 min · 339 recorded · 338 measured · Source: the US BTS May · 15.9 min · 382 recorded · 382 measured · Source: the US BTS Jun · 15.0 min · 422 recorded · 422 measured · Source: the US BTS Jul · 24.1 min · 398 recorded · 389 measured · Source: the US BTS Aug · 4.4 min · 200 recorded · 200 measured · Source: the US BTS Sep · Fewer than 200 measured departures · 158 recorded · 158 measured · Source: the US BTS Oct · 4.6 min · 306 recorded · 306 measured · Source: the US BTS Nov · 9.8 min · 354 recorded · 354 measured · Source: the US BTS Dec · 7.4 min · 270 recorded · 270 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 · 233 · 233 recorded · 222 measured · Source: the US BTS Feb · 248 · 248 recorded · 243 measured · Source: the US BTS Mar · 301 · 301 recorded · 300 measured · Source: the US BTS Apr · 339 · 339 recorded · 338 measured · Source: the US BTS May · 382 · 382 recorded · 382 measured · Source: the US BTS Jun · 422 · 422 recorded · 422 measured · Source: the US BTS Jul · 398 · 398 recorded · 389 measured · Source: the US BTS Aug · 200 · 200 recorded · 200 measured · Source: the US BTS Sep · 158 · 158 recorded · 158 measured · Source: the US BTS Oct · 306 · 306 recorded · 306 measured · Source: the US BTS Nov · 354 · 354 recorded · 354 measured · Source: the US BTS Dec · 270 · 270 recorded · 270 measured · Source: the US BTS

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View the figures
Month of yearOn-time departuresAverage departure delayWith departure timeRecorded flights
Jan82.9%9.7 min222233
Feb86.8%5.0 min243248
Mar82.3%16.0 min300301
Apr85.5%7.0 min338339
May82.2%15.9 min382382
Jun81.0%15.0 min422422
Jul77.6%24.1 min389398
Aug89.5%4.4 min200200
SepFewer than 200 measured departures—158158
Oct89.5%4.6 min306306
Nov85.0%9.8 min354354
Dec84.8%7.4 min270270

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 83.5% 3,014
  • Delayed >15 min 15.8% 570
  • Cancelled 0.7% 27
  • 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

20
20 of 20
Flight numbersBy direction DeparturesOn time
UA2125 BNA → IAD 615 81.7%
UA1709 BNA → IAD 429 90.7%
UA2336 IAD → BNA 382 94.0%
UA2264 IAD → BNA 284 80.1%
UA495 BNA → IAD 253 72.5%
UA1858 IAD → BNA 173 89.4%
UA1873 IAD → BNA 173 86.1%
UA1460 BNA → IAD 165 63.8%
UA1366 IAD → BNA 140 91.4%
UA213 IAD → BNA 125 92.8%
UA1050 BNA → IAD 86 87.2%
UA2156 IAD → BNA 84 90.4%
UA2098 IAD → BNA 54 90.7%
UA444 BNA → IAD 50 68.0%
G44353 BNA → IAD 40 79.5%
UA2349 IAD → BNA 37 97.3%
UA267 BNA → IAD 37 83.8%
UA1140 IAD → BNA 35 57.1%
UA1839 IAD → BNA 32 93.8%
UA1071 IAD → BNA 30 69.0%

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 191 −3.5% 5 77.5%
June 2026 184 −22.7% 0 80.4%
May 2026 172 −18.1% 0 82.6%
April 2026 177 +9.9% 1 87.6%
March 2026 173 +36.2% 1 81.5%
February 2026 131 +17.0% 5 87.0%
January 2026 108 −5.3% 8 83.3%
December 2025 141 +9.3% 0 80.1%
November 2025 176 −1.1% 0 78.4%
October 2025 186 +55.0% 0 87.1%
September 2025 158 0 89.9%
August 2025 200 0 89.5%
July 2025 198 4 77.8%
June 2025 238 0 81.5%
May 2025 210 0 81.9%
April 2025 161 0 83.2%
March 2025 127 0 83.5%
February 2025 112 0 86.6%
January 2025 114 3 82.5%
December 2024 129 0 89.9%
November 2024 178 0 91.6%
October 2024 120 0 93.3%

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