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606 km · Domestic

Baltimore/Washington International Thurgood Marshall (BWI) – Manchester-Boston (MHT)

In July 2026, 293 flights operated between Baltimore/Washington International Thurgood Marshall and Manchester-Boston (both directions), and 76.8% 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
January213255▲ 19.7%
February200255▲ 27.5%
March246288▲ 17.1%
April262295▲ 12.6%
May272306▲ 12.5%
June257291▲ 13.2%
July255293▲ 14.9%
August292––
September292––
October300–in progress
November286––
December306––
Year to date (Jan–Jul)1,7051,983▲ 16.3%

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
January85.0%84.7%▼ 0.4%
February83.0%80.8%▼ 2.7%
March85.4%79.5%▼ 6.9%
April87.8%84.1%▼ 4.2%
May75.0%77.1%▲ 2.8%
June68.5%82.1%▲ 19.9%
July64.3%76.8%▲ 19.4%
August78.1%––
September87.3%––
October77.7%–in progress
November87.8%––
December79.4%––
Year-to-date average (Jan–Jul)78.4%80.7%▲ 2.9%

Cancelled flights by month

The most recent periods19 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January49▲ 125.0%
February25▲ 150.0%
March62▼ 66.7%
April00–
May00–
June10▼ 100.0%
July990.0%
August0––
September0––
October0–in progress
November7––
December0––
Year to date (Jan–Jul)2225▲ 13.6%

By direction

BWI → MHT

Scheduled flights
2,989
Flights operated
2,958
Cancelled
31 · 1.0%
On-time departures
73.9%

MHT → BWI

Scheduled flights
2,992
Flights operated
2,969
Cancelled
23 · 0.8%
On-time departures
87.4%

BWI → MHT and MHT → BWI counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
Southwest Airlines WN 5,981 100.0% 80.6% 54

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 delay05:00–06:00-2.7min · 537 recorded · 533 measured
Gap to highest-delay hour31.2min05:00 ↔ 22:00
Recorded flights5,981BWI–MHT

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 · 97.0% · 537 recorded · 533 measured · Source: the US BTS 06:00 · 94.2% · 349 recorded · 345 measured · Source: the US BTS 07:00 · 94.8% · 290 recorded · 288 measured · Source: the US BTS 08:00 · 92.7% · 305 recorded · 302 measured · Source: the US BTS 09:00 · 90.4% · 355 recorded · 354 measured · Source: the US BTS 10:00 · 89.2% · 427 recorded · 426 measured · Source: the US BTS 11:00 · 85.4% · 343 recorded · 342 measured · Source: the US BTS 12:00 · 83.7% · 378 recorded · 375 measured · Source: the US BTS 13:00 · 77.7% · 417 recorded · 412 measured · Source: the US BTS 14:00 · 75.0% · 351 recorded · 348 measured · Source: the US BTS 15:00 · 77.6% · 511 recorded · 508 measured · Source: the US BTS 16:00 · 75.9% · 279 recorded · 278 measured · Source: the US BTS 17:00 · 66.5% · 398 recorded · 394 measured · Source: the US BTS 18:00 · 71.2% · 207 recorded · 205 measured · Source: the US BTS 19:00 · Fewer than 200 measured departures · 114 recorded · 112 measured · Source: the US BTS 20:00 · Fewer than 200 measured departures · 153 recorded · 150 measured · Source: the US BTS 21:00 · 68.1% · 270 recorded · 266 measured · Source: the US BTS 22:00 · 48.1% · 297 recorded · 289 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 · -2.7 min · 537 recorded · 533 measured · Source: the US BTS 06:00 · -2.2 min · 349 recorded · 345 measured · Source: the US BTS 07:00 · -1.0 min · 290 recorded · 288 measured · Source: the US BTS 08:00 · 0.3 min · 305 recorded · 302 measured · Source: the US BTS 09:00 · 2.7 min · 355 recorded · 354 measured · Source: the US BTS 10:00 · 2.9 min · 427 recorded · 426 measured · Source: the US BTS 11:00 · 6.6 min · 343 recorded · 342 measured · Source: the US BTS 12:00 · 6.8 min · 378 recorded · 375 measured · Source: the US BTS 13:00 · 12.0 min · 417 recorded · 412 measured · Source: the US BTS 14:00 · 12.1 min · 351 recorded · 348 measured · Source: the US BTS 15:00 · 11.6 min · 511 recorded · 508 measured · Source: the US BTS 16:00 · 16.5 min · 279 recorded · 278 measured · Source: the US BTS 17:00 · 20.4 min · 398 recorded · 394 measured · Source: the US BTS 18:00 · 14.4 min · 207 recorded · 205 measured · Source: the US BTS 19:00 · Fewer than 200 measured departures · 114 recorded · 112 measured · Source: the US BTS 20:00 · Fewer than 200 measured departures · 153 recorded · 150 measured · Source: the US BTS 21:00 · 17.4 min · 270 recorded · 266 measured · Source: the US BTS 22:00 · 28.5 min · 297 recorded · 289 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 · 537 · 537 recorded · 533 measured · Source: the US BTS 06:00 · 349 · 349 recorded · 345 measured · Source: the US BTS 07:00 · 290 · 290 recorded · 288 measured · Source: the US BTS 08:00 · 305 · 305 recorded · 302 measured · Source: the US BTS 09:00 · 355 · 355 recorded · 354 measured · Source: the US BTS 10:00 · 427 · 427 recorded · 426 measured · Source: the US BTS 11:00 · 343 · 343 recorded · 342 measured · Source: the US BTS 12:00 · 378 · 378 recorded · 375 measured · Source: the US BTS 13:00 · 417 · 417 recorded · 412 measured · Source: the US BTS 14:00 · 351 · 351 recorded · 348 measured · Source: the US BTS 15:00 · 511 · 511 recorded · 508 measured · Source: the US BTS 16:00 · 279 · 279 recorded · 278 measured · Source: the US BTS 17:00 · 398 · 398 recorded · 394 measured · Source: the US BTS 18:00 · 207 · 207 recorded · 205 measured · Source: the US BTS 19:00 · 114 · 114 recorded · 112 measured · Source: the US BTS 20:00 · 153 · 153 recorded · 150 measured · Source: the US BTS 21:00 · 270 · 270 recorded · 266 measured · Source: the US BTS 22:00 · 297 · 297 recorded · 289 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———
05:0097.0%-2.7 min533537
06:0094.2%-2.2 min345349
07:0094.8%-1.0 min288290
08:0092.7%0.3 min302305
09:0090.4%2.7 min354355
10:0089.2%2.9 min426427
11:0085.4%6.6 min342343
12:0083.7%6.8 min375378
13:0077.7%12.0 min412417
14:0075.0%12.1 min348351
15:0077.6%11.6 min508511
16:0075.9%16.5 min278279
17:0066.5%20.4 min394398
18:0071.2%14.4 min205207
19:00Fewer than 200 measured departures—112114
20:00Fewer than 200 measured departures—150153
21:0068.1%17.4 min266270
22:0048.1%28.5 min289297
23:00No observations———

Day of week

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
Monday · 77.6% · 915 recorded · 899 measured · Source: the US BTS Tuesday · 85.2% · 847 recorded · 840 measured · Source: the US BTS Wednesday · 84.8% · 846 recorded · 843 measured · Source: the US BTS Thursday · 81.5% · 895 recorded · 891 measured · Source: the US BTS Friday · 80.9% · 906 recorded · 904 measured · Source: the US BTS Saturday · 79.5% · 738 recorded · 733 measured · Source: the US BTS Sunday · 74.8% · 834 recorded · 817 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 · 11.6 min · 915 recorded · 899 measured · Source: the US BTS Tuesday · 5.2 min · 847 recorded · 840 measured · Source: the US BTS Wednesday · 6.4 min · 846 recorded · 843 measured · Source: the US BTS Thursday · 9.4 min · 895 recorded · 891 measured · Source: the US BTS Friday · 9.8 min · 906 recorded · 904 measured · Source: the US BTS Saturday · 7.7 min · 738 recorded · 733 measured · Source: the US BTS Sunday · 13.8 min · 834 recorded · 817 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 · 915 · 915 recorded · 899 measured · Source: the US BTS Tuesday · 847 · 847 recorded · 840 measured · Source: the US BTS Wednesday · 846 · 846 recorded · 843 measured · Source: the US BTS Thursday · 895 · 895 recorded · 891 measured · Source: the US BTS Friday · 906 · 906 recorded · 904 measured · Source: the US BTS Saturday · 738 · 738 recorded · 733 measured · Source: the US BTS Sunday · 834 · 834 recorded · 817 measured · Source: the US BTS

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View the figures
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
Monday77.6%11.6 min899915
Tuesday85.2%5.2 min840847
Wednesday84.8%6.4 min843846
Thursday81.5%9.4 min891895
Friday80.9%9.8 min904906
Saturday79.5%7.7 min733738
Sunday74.8%13.8 min817834

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 · 84.8% · 481 recorded · 468 measured · Source: the US BTS Feb · 81.8% · 462 recorded · 455 measured · Source: the US BTS Mar · 82.2% · 542 recorded · 534 measured · Source: the US BTS Apr · 85.8% · 557 recorded · 557 measured · Source: the US BTS May · 76.1% · 578 recorded · 578 measured · Source: the US BTS Jun · 75.7% · 549 recorded · 548 measured · Source: the US BTS Jul · 71.0% · 566 recorded · 548 measured · Source: the US BTS Aug · 78.1% · 292 recorded · 292 measured · Source: the US BTS Sep · 87.3% · 292 recorded · 292 measured · Source: the US BTS Oct · 79.6% · 486 recorded · 486 measured · Source: the US BTS Nov · 88.9% · 572 recorded · 565 measured · Source: the US BTS Dec · 79.1% · 604 recorded · 604 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 · 5.8 min · 481 recorded · 468 measured · Source: the US BTS Feb · 8.0 min · 462 recorded · 455 measured · Source: the US BTS Mar · 7.8 min · 542 recorded · 534 measured · Source: the US BTS Apr · 4.7 min · 557 recorded · 557 measured · Source: the US BTS May · 11.8 min · 578 recorded · 578 measured · Source: the US BTS Jun · 12.2 min · 549 recorded · 548 measured · Source: the US BTS Jul · 23.9 min · 566 recorded · 548 measured · Source: the US BTS Aug · 11.2 min · 292 recorded · 292 measured · Source: the US BTS Sep · 3.5 min · 292 recorded · 292 measured · Source: the US BTS Oct · 7.5 min · 486 recorded · 486 measured · Source: the US BTS Nov · 3.4 min · 572 recorded · 565 measured · Source: the US BTS Dec · 8.1 min · 604 recorded · 604 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 · 481 · 481 recorded · 468 measured · Source: the US BTS Feb · 462 · 462 recorded · 455 measured · Source: the US BTS Mar · 542 · 542 recorded · 534 measured · Source: the US BTS Apr · 557 · 557 recorded · 557 measured · Source: the US BTS May · 578 · 578 recorded · 578 measured · Source: the US BTS Jun · 549 · 549 recorded · 548 measured · Source: the US BTS Jul · 566 · 566 recorded · 548 measured · Source: the US BTS Aug · 292 · 292 recorded · 292 measured · Source: the US BTS Sep · 292 · 292 recorded · 292 measured · Source: the US BTS Oct · 486 · 486 recorded · 486 measured · Source: the US BTS Nov · 572 · 572 recorded · 565 measured · Source: the US BTS Dec · 604 · 604 recorded · 604 measured · Source: the US BTS

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View the figures
Month of yearOn-time departuresAverage departure delayWith departure timeRecorded flights
Jan84.8%5.8 min468481
Feb81.8%8.0 min455462
Mar82.2%7.8 min534542
Apr85.8%4.7 min557557
May76.1%11.8 min578578
Jun75.7%12.2 min548549
Jul71.0%23.9 min548566
Aug78.1%11.2 min292292
Sep87.3%3.5 min292292
Oct79.6%7.5 min486486
Nov88.9%3.4 min565572
Dec79.1%8.1 min604604

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 79.9% 4,780
  • Delayed >15 min 19.2% 1,147
  • Cancelled 0.9% 54
  • 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

87
87 of 87
Flight numbersBy direction DeparturesOn time
WN279 MHT → BWI 123 96.7%
WN1575 BWI → MHT 97 61.5%
WN3443 BWI → MHT 82 74.4%
WN3479 BWI → MHT 79 89.9%
WN2355 MHT → BWI 77 92.2%
WN1855 MHT → BWI 74 91.8%
WN4086 BWI → MHT 73 87.7%
WN1790 BWI → MHT 70 52.9%
WN1706 MHT → BWI 64 96.8%
WN1767 BWI → MHT 64 67.2%
WN1760 BWI → MHT 63 87.1%
WN1949 MHT → BWI 61 86.4%
WN1919 MHT → BWI 60 52.5%
WN1766 BWI → MHT 59 59.3%
WN3993 MHT → BWI 59 93.0%
WN1004 BWI → MHT 58 69.6%
WN111 MHT → BWI 58 94.8%
WN1209 BWI → MHT 58 65.5%
WN1651 BWI → MHT 58 87.5%
WN1909 MHT → BWI 58 91.2%
WN2578 MHT → BWI 58 70.7%
WN3789 MHT → BWI 58 86.2%
WN3796 MHT → BWI 58 86.2%
WN3997 MHT → BWI 58 96.6%
WN4151 BWI → MHT 58 70.7%
WN4963 BWI → MHT 58 94.8%
WN992 MHT → BWI 58 77.2%
WN1003 BWI → MHT 57 80.7%
WN1206 BWI → MHT 57 93.0%
WN1668 BWI → MHT 57 39.6%
WN2213 BWI → MHT 57 80.7%
WN2415 BWI → MHT 57 70.2%
WN2699 BWI → MHT 57 86.0%
WN2967 BWI → MHT 57 94.7%
WN3412 MHT → BWI 57 94.7%
WN3413 MHT → BWI 57 86.0%
WN4657 MHT → BWI 57 98.3%
WN4659 MHT → BWI 57 100.0%
WN2950 MHT → BWI 56 89.3%
WN1449 MHT → BWI 54 92.5%
WN2690 MHT → BWI 52 59.6%
WN1816 BWI → MHT 51 74.5%
WN1002 BWI → MHT 50 96.0%
WN1211 BWI → MHT 50 62.0%
WN1731 BWI → MHT 50 70.0%
WN2918 MHT → BWI 50 96.0%
WN3788 MHT → BWI 50 92.0%
WN4736 BWI → MHT 50 60.0%
WN173 MHT → BWI 47 100.0%
WN2590 BWI → MHT 47 69.6%
WN2855 MHT → BWI 47 84.8%
WN1891 MHT → BWI 45 84.4%
WN329 MHT → BWI 45 95.5%
WN3958 MHT → BWI 45 97.8%
WN1289 BWI → MHT 43 40.0%
WN1786 BWI → MHT 43 69.8%
WN2459 MHT → BWI 43 90.7%
WN3205 BWI → MHT 43 97.5%
WN1121 MHT → BWI 42 90.5%
WN1688 MHT → BWI 42 81.0%
WN3472 BWI → MHT 42 73.8%
WN3496 BWI → MHT 42 66.7%
WN4136 MHT → BWI 42 88.1%
WN4442 BWI → MHT 42 82.9%
WN490 MHT → BWI 42 73.8%
WN2292 MHT → BWI 40 87.5%
WN1541 BWI → MHT 34 82.4%
WN1746 BWI → MHT 34 64.7%
WN2939 BWI → MHT 34 100.0%
WN1050 BWI → MHT 33 35.5%
WN1603 BWI → MHT 33 60.6%
WN1638 MHT → BWI 33 75.8%
WN1647 MHT → BWI 33 97.0%
WN1942 BWI → MHT 33 97.0%
WN269 BWI → MHT 33 97.0%
WN2745 MHT → BWI 33 81.8%
WN3307 BWI → MHT 33 78.1%
WN3959 MHT → BWI 33 87.5%
WN4018 MHT → BWI 33 97.0%
WN4019 MHT → BWI 33 87.9%
WN573 MHT → BWI 33 93.8%
WN2457 BWI → MHT 32 84.4%
WN1255 MHT → BWI 31 100.0%
WN1351 BWI → MHT 31 93.6%
WN1841 BWI → MHT 31 67.7%
WN3811 MHT → BWI 31 61.3%
WN2514 MHT → BWI 30 90.0%

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 293 +14.9% 9 76.8%
June 2026 291 +13.2% 0 82.1%
May 2026 306 +12.5% 0 77.1%
April 2026 295 +12.6% 0 84.1%
March 2026 288 +17.1% 2 79.5%
February 2026 255 +27.5% 5 80.8%
January 2026 255 +19.7% 9 84.7%
December 2025 306 +2.7% 0 79.4%
November 2025 286 +2.5% 7 87.8%
October 2025 300 +61.3% 0 77.7%
September 2025 292 0 87.3%
August 2025 292 0 78.1%
July 2025 255 9 64.3%
June 2025 257 1 68.5%
May 2025 272 0 75.0%
April 2025 262 0 87.8%
March 2025 246 6 85.4%
February 2025 200 2 83.0%
January 2025 213 4 85.0%
December 2024 298 0 78.9%
November 2024 279 0 90.0%
October 2024 186 0 82.8%

How to read this chart

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