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447 km · Domestic

Baltimore/Washington International Thurgood Marshall (BWI) – Frederick Douglass Greater Rochester (ROC)

In July 2026, 180 flights operated between Baltimore/Washington International Thurgood Marshall and Frederick Douglass Greater Rochester (both directions), and 56.1% 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
January183182▼ 0.5%
February172174▲ 1.2%
March183185▲ 1.1%
April181180▼ 0.6%
May1861860.0%
June176179▲ 1.7%
July176180▲ 2.3%
August186––
September180––
October186–in progress
November178––
December186––
Year to date (Jan–Jul)1,2571,266▲ 0.7%

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
January83.6%79.7%▼ 4.7%
February75.6%70.7%▼ 6.5%
March77.6%67.6%▼ 12.9%
April72.4%76.7%▲ 5.9%
May66.1%67.2%▲ 1.7%
June64.2%62.6%▼ 2.5%
July56.8%56.1%▼ 1.2%
August74.2%––
September85.0%––
October75.3%–in progress
November80.9%––
December66.7%––
Year-to-date average (Jan–Jul)70.9%68.7%▼ 3.2%

Cancelled flights by month

The most recent periods19 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January36▲ 100.0%
February06–
March31▼ 66.7%
April00–
May00–
June51▼ 80.0%
July86▼ 25.0%
August0––
September0––
October0–in progress
November4––
December4––
Year to date (Jan–Jul)1920▲ 5.3%

By direction

BWI → ROC

Scheduled flights
1,991
Flights operated
1,965
Cancelled
26 · 1.3%
On-time departures
67.5%

ROC → BWI

Scheduled flights
1,992
Flights operated
1,971
Cancelled
21 · 1.1%
On-time departures
77.9%

BWI → ROC and ROC → BWI counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
Southwest Airlines WN 3,983 100.0% 72.7% 47

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 delay06:00–07:001.8min · 480 recorded · 477 measured
Gap to highest-delay hour30.3min06:00 ↔ 22:00
Recorded flights3,983BWI–ROC

Departure hour

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
00:00 · Fewer than 200 measured departures · 1 recorded · 1 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 · Fewer than 200 measured departures · 179 recorded · 176 measured · Source: the US BTS 06:00 · 95.8% · 480 recorded · 477 measured · Source: the US BTS 07:00 · Fewer than 200 measured departures · 4 recorded · 4 measured · Source: the US BTS 08:00 · Fewer than 200 measured departures · 5 recorded · 5 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 43 recorded · 43 measured · Source: the US BTS 10:00 · 82.6% · 482 recorded · 478 measured · Source: the US BTS 11:00 · 80.3% · 260 recorded · 259 measured · Source: the US BTS 12:00 · 69.0% · 452 recorded · 449 measured · Source: the US BTS 13:00 · Fewer than 200 measured departures · 181 recorded · 180 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 172 recorded · 172 measured · Source: the US BTS 15:00 · 68.9% · 309 recorded · 305 measured · Source: the US BTS 16:00 · 67.7% · 425 recorded · 418 measured · Source: the US BTS 17:00 · 55.4% · 255 recorded · 251 measured · Source: the US BTS 18:00 · Fewer than 200 measured departures · 77 recorded · 75 measured · Source: the US BTS 19:00 · Fewer than 200 measured departures · 3 recorded · 3 measured · Source: the US BTS 20:00 · Fewer than 200 measured departures · 137 recorded · 137 measured · Source: the US BTS 21:00 · 58.6% · 246 recorded · 239 measured · Source: the US BTS 22:00 · 40.5% · 272 recorded · 264 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 · Fewer than 200 measured departures · 1 recorded · 1 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 · Fewer than 200 measured departures · 179 recorded · 176 measured · Source: the US BTS 06:00 · 1.8 min · 480 recorded · 477 measured · Source: the US BTS 07:00 · Fewer than 200 measured departures · 4 recorded · 4 measured · Source: the US BTS 08:00 · Fewer than 200 measured departures · 5 recorded · 5 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 43 recorded · 43 measured · Source: the US BTS 10:00 · 8.6 min · 482 recorded · 478 measured · Source: the US BTS 11:00 · 7.3 min · 260 recorded · 259 measured · Source: the US BTS 12:00 · 16.1 min · 452 recorded · 449 measured · Source: the US BTS 13:00 · Fewer than 200 measured departures · 181 recorded · 180 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 172 recorded · 172 measured · Source: the US BTS 15:00 · 16.3 min · 309 recorded · 305 measured · Source: the US BTS 16:00 · 17.7 min · 425 recorded · 418 measured · Source: the US BTS 17:00 · 27.2 min · 255 recorded · 251 measured · Source: the US BTS 18:00 · Fewer than 200 measured departures · 77 recorded · 75 measured · Source: the US BTS 19:00 · Fewer than 200 measured departures · 3 recorded · 3 measured · Source: the US BTS 20:00 · Fewer than 200 measured departures · 137 recorded · 137 measured · Source: the US BTS 21:00 · 21.7 min · 246 recorded · 239 measured · Source: the US BTS 22:00 · 32.1 min · 272 recorded · 264 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 · 1 · 1 recorded · 1 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 · 179 · 179 recorded · 176 measured · Source: the US BTS 06:00 · 480 · 480 recorded · 477 measured · Source: the US BTS 07:00 · 4 · 4 recorded · 4 measured · Source: the US BTS 08:00 · 5 · 5 recorded · 5 measured · Source: the US BTS 09:00 · 43 · 43 recorded · 43 measured · Source: the US BTS 10:00 · 482 · 482 recorded · 478 measured · Source: the US BTS 11:00 · 260 · 260 recorded · 259 measured · Source: the US BTS 12:00 · 452 · 452 recorded · 449 measured · Source: the US BTS 13:00 · 181 · 181 recorded · 180 measured · Source: the US BTS 14:00 · 172 · 172 recorded · 172 measured · Source: the US BTS 15:00 · 309 · 309 recorded · 305 measured · Source: the US BTS 16:00 · 425 · 425 recorded · 418 measured · Source: the US BTS 17:00 · 255 · 255 recorded · 251 measured · Source: the US BTS 18:00 · 77 · 77 recorded · 75 measured · Source: the US BTS 19:00 · 3 · 3 recorded · 3 measured · Source: the US BTS 20:00 · 137 · 137 recorded · 137 measured · Source: the US BTS 21:00 · 246 · 246 recorded · 239 measured · Source: the US BTS 22:00 · 272 · 272 recorded · 264 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.

View the figures
Departure hourOn-time departuresAverage departure delayWith departure timeRecorded flights
00:00Fewer than 200 measured departures—11
01:00No observations———
02:00No observations———
03:00No observations———
04:00No observations———
05:00Fewer than 200 measured departures—176179
06:0095.8%1.8 min477480
07:00Fewer than 200 measured departures—44
08:00Fewer than 200 measured departures—55
09:00Fewer than 200 measured departures—4343
10:0082.6%8.6 min478482
11:0080.3%7.3 min259260
12:0069.0%16.1 min449452
13:00Fewer than 200 measured departures—180181
14:00Fewer than 200 measured departures—172172
15:0068.9%16.3 min305309
16:0067.7%17.7 min418425
17:0055.4%27.2 min251255
18:00Fewer than 200 measured departures—7577
19:00Fewer than 200 measured departures—33
20:00Fewer than 200 measured departures—137137
21:0058.6%21.7 min239246
22:0040.5%32.1 min264272
23:00No observations———

Day of week

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
Monday · 68.8% · 564 recorded · 551 measured · Source: the US BTS Tuesday · 72.8% · 571 recorded · 563 measured · Source: the US BTS Wednesday · 77.5% · 571 recorded · 568 measured · Source: the US BTS Thursday · 71.3% · 560 recorded · 558 measured · Source: the US BTS Friday · 71.2% · 564 recorded · 562 measured · Source: the US BTS Saturday · 76.0% · 586 recorded · 583 measured · Source: the US BTS Sunday · 71.1% · 567 recorded · 551 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 · 17.0 min · 564 recorded · 551 measured · Source: the US BTS Tuesday · 16.6 min · 571 recorded · 563 measured · Source: the US BTS Wednesday · 11.6 min · 571 recorded · 568 measured · Source: the US BTS Thursday · 14.7 min · 560 recorded · 558 measured · Source: the US BTS Friday · 14.0 min · 564 recorded · 562 measured · Source: the US BTS Saturday · 12.1 min · 586 recorded · 583 measured · Source: the US BTS Sunday · 15.7 min · 567 recorded · 551 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 · 564 · 564 recorded · 551 measured · Source: the US BTS Tuesday · 571 · 571 recorded · 563 measured · Source: the US BTS Wednesday · 571 · 571 recorded · 568 measured · Source: the US BTS Thursday · 560 · 560 recorded · 558 measured · Source: the US BTS Friday · 564 · 564 recorded · 562 measured · Source: the US BTS Saturday · 586 · 586 recorded · 583 measured · Source: the US BTS Sunday · 567 · 567 recorded · 551 measured · Source: the US BTS

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View the figures
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
Monday68.8%17.0 min551564
Tuesday72.8%16.6 min563571
Wednesday77.5%11.6 min568571
Thursday71.3%14.7 min558560
Friday71.2%14.0 min562564
Saturday76.0%12.1 min583586
Sunday71.1%15.7 min551567

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 · 81.6% · 374 recorded · 365 measured · Source: the US BTS Feb · 73.1% · 352 recorded · 346 measured · Source: the US BTS Mar · 72.6% · 372 recorded · 368 measured · Source: the US BTS Apr · 74.5% · 361 recorded · 361 measured · Source: the US BTS May · 66.7% · 372 recorded · 372 measured · Source: the US BTS Jun · 63.4% · 361 recorded · 355 measured · Source: the US BTS Jul · 56.5% · 370 recorded · 356 measured · Source: the US BTS Aug · Fewer than 200 measured departures · 186 recorded · 186 measured · Source: the US BTS Sep · Fewer than 200 measured departures · 180 recorded · 180 measured · Source: the US BTS Oct · 81.1% · 318 recorded · 318 measured · Source: the US BTS Nov · 81.5% · 361 recorded · 357 measured · Source: the US BTS Dec · 70.2% · 376 recorded · 372 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 · 7.9 min · 374 recorded · 365 measured · Source: the US BTS Feb · 11.9 min · 352 recorded · 346 measured · Source: the US BTS Mar · 17.1 min · 372 recorded · 368 measured · Source: the US BTS Apr · 9.7 min · 361 recorded · 361 measured · Source: the US BTS May · 16.8 min · 372 recorded · 372 measured · Source: the US BTS Jun · 19.0 min · 361 recorded · 355 measured · Source: the US BTS Jul · 32.0 min · 370 recorded · 356 measured · Source: the US BTS Aug · Fewer than 200 measured departures · 186 recorded · 186 measured · Source: the US BTS Sep · Fewer than 200 measured departures · 180 recorded · 180 measured · Source: the US BTS Oct · 9.4 min · 318 recorded · 318 measured · Source: the US BTS Nov · 9.5 min · 361 recorded · 357 measured · Source: the US BTS Dec · 15.4 min · 376 recorded · 372 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 · 374 · 374 recorded · 365 measured · Source: the US BTS Feb · 352 · 352 recorded · 346 measured · Source: the US BTS Mar · 372 · 372 recorded · 368 measured · Source: the US BTS Apr · 361 · 361 recorded · 361 measured · Source: the US BTS May · 372 · 372 recorded · 372 measured · Source: the US BTS Jun · 361 · 361 recorded · 355 measured · Source: the US BTS Jul · 370 · 370 recorded · 356 measured · Source: the US BTS Aug · 186 · 186 recorded · 186 measured · Source: the US BTS Sep · 180 · 180 recorded · 180 measured · Source: the US BTS Oct · 318 · 318 recorded · 318 measured · Source: the US BTS Nov · 361 · 361 recorded · 357 measured · Source: the US BTS Dec · 376 · 376 recorded · 372 measured · Source: the US BTS

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

View the figures
Month of yearOn-time departuresAverage departure delayWith departure timeRecorded flights
Jan81.6%7.9 min365374
Feb73.1%11.9 min346352
Mar72.6%17.1 min368372
Apr74.5%9.7 min361361
May66.7%16.8 min372372
Jun63.4%19.0 min355361
Jul56.5%32.0 min356370
AugFewer than 200 measured departures—186186
SepFewer than 200 measured departures—180180
Oct81.1%9.4 min318318
Nov81.5%9.5 min357361
Dec70.2%15.4 min372376

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 71.9% 2,862
  • Delayed >15 min 27.0% 1,074
  • Cancelled 1.2% 47
  • 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

56
56 of 56
Flight numbersBy direction DeparturesOn time
WN331 ROC → BWI 123 93.4%
WN4800 BWI → ROC 109 61.1%
WN819 ROC → BWI 102 76.2%
WN3064 ROC → BWI 98 79.4%
WN4244 BWI → ROC 83 87.8%
WN944 BWI → ROC 75 88.0%
WN1845 ROC → BWI 64 87.1%
WN1416 BWI → ROC 63 83.9%
WN1524 BWI → ROC 61 70.5%
WN2270 ROC → BWI 61 94.9%
WN766 BWI → ROC 61 43.6%
WN1682 ROC → BWI 59 61.4%
WN1287 BWI → ROC 58 82.8%
WN1432 ROC → BWI 58 74.1%
WN1673 ROC → BWI 58 81.0%
WN1711 ROC → BWI 58 70.7%
WN1904 BWI → ROC 58 86.2%
WN2291 BWI → ROC 58 63.8%
WN2758 BWI → ROC 58 34.5%
WN3256 BWI → ROC 58 81.0%
WN3337 ROC → BWI 58 91.1%
WN3338 ROC → BWI 58 75.4%
WN3339 ROC → BWI 58 64.3%
WN3892 BWI → ROC 58 50.0%
WN4028 ROC → BWI 58 100.0%
WN4168 ROC → BWI 58 82.8%
WN4545 ROC → BWI 58 94.8%
WN4630 BWI → ROC 58 66.1%
WN2759 BWI → ROC 57 63.2%
WN3458 ROC → BWI 57 51.8%
WN4029 ROC → BWI 57 64.9%
WN4680 ROC → BWI 57 96.5%
WN1745 ROC → BWI 54 85.2%
WN2854 ROC → BWI 50 88.0%
WN2878 BWI → ROC 47 84.4%
WN1887 BWI → ROC 46 65.2%
WN1706 ROC → BWI 42 45.2%
WN1947 ROC → BWI 42 73.8%
WN1081 BWI → ROC 41 25.6%
WN573 ROC → BWI 35 88.6%
WN1247 BWI → ROC 34 29.0%
WN3612 ROC → BWI 34 40.6%
WN4354 ROC → BWI 34 50.0%
WN153 ROC → BWI 33 87.9%
WN1551 ROC → BWI 33 93.8%
WN1730 BWI → ROC 33 33.3%
WN1799 ROC → BWI 33 84.9%
WN2392 ROC → BWI 33 57.6%
WN2519 BWI → ROC 33 51.5%
WN2761 BWI → ROC 33 78.8%
WN2875 BWI → ROC 33 72.7%
WN2951 ROC → BWI 33 69.7%
WN687 ROC → BWI 33 81.3%
WN2102 ROC → BWI 31 87.1%
WN2693 BWI → ROC 31 46.7%
WN3037 BWI → ROC 31 87.1%

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 180 +2.3% 6 56.1%
June 2026 179 +1.7% 1 62.6%
May 2026 186 +0.0% 0 67.2%
April 2026 180 −0.6% 0 76.7%
March 2026 185 +1.1% 1 67.6%
February 2026 174 +1.2% 6 70.7%
January 2026 182 −0.5% 6 79.7%
December 2025 186 +0.0% 4 66.7%
November 2025 178 −0.6% 4 80.9%
October 2025 186 +40.9% 0 75.3%
September 2025 180 0 85.0%
August 2025 186 0 74.2%
July 2025 176 8 56.8%
June 2025 176 5 64.2%
May 2025 186 0 66.1%
April 2025 181 0 72.4%
March 2025 183 3 77.6%
February 2025 172 0 75.6%
January 2025 183 3 83.6%
December 2024 186 0 73.7%
November 2024 179 0 82.1%
October 2024 132 0 89.4%

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