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761 km · Domestic

Baltimore/Washington International Thurgood Marshall (BWI) – Charleston (CHS)

In July 2026, 210 flights operated between Baltimore/Washington International Thurgood Marshall and Charleston (both directions), and 64.8% 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
January167180▲ 7.8%
February160158▼ 1.3%
March214207▼ 3.3%
April228218▼ 4.4%
May250225▼ 10.0%
June233213▼ 8.6%
July225210▼ 6.7%
August197––
September180––
October236–in progress
November202––
December202––
Year to date (Jan–Jul)1,4771,411▼ 4.5%

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
January79.6%88.9%▲ 11.7%
February85.0%84.2%▼ 0.9%
March87.9%74.4%▼ 15.4%
April83.3%78.9%▼ 5.3%
May80.0%74.7%▼ 6.6%
June74.7%70.0%▼ 6.3%
July67.6%64.8%▼ 4.1%
August78.2%––
September87.8%––
October81.4%–in progress
November82.2%––
December78.2%––
Year-to-date average (Jan–Jul)79.7%76.6%▼ 4.0%

Cancelled flights by month

The most recent periods19 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January1512▼ 20.0%
February04–
March23▲ 50.0%
April00–
May00–
June51▼ 80.0%
July910▲ 11.1%
August1––
September0––
October0–in progress
November4––
December4––
Year to date (Jan–Jul)3130▼ 3.2%

Airlines on this route

  1. Southwest Airlines 98.8%
  2. Spirit Airlines 1.2%

Oct 1, 2024 – Jul 31, 2026

By direction

BWI → CHS

Scheduled flights
2,253
Flights operated
2,220
Cancelled
33 · 1.5%
On-time departures
75.2%

CHS → BWI

Scheduled flights
2,252
Flights operated
2,214
Cancelled
38 · 1.7%
On-time departures
82.7%

BWI → CHS and CHS → BWI counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
Southwest Airlines WN 4,449 98.8% 78.9% 71
Spirit Airlines NK 56 1.2% 83.9% 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 delay07:00–08:001.2min · 436 recorded · 429 measured
Gap to highest-delay hour25.3min07:00 ↔ 20:00
Recorded flights4,505BWI–CHS

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 · Fewer than 200 measured departures · 5 recorded · 5 measured · Source: the US BTS 06:00 · Fewer than 200 measured departures · 29 recorded · 29 measured · Source: the US BTS 07:00 · 95.1% · 436 recorded · 429 measured · Source: the US BTS 08:00 · 91.7% · 783 recorded · 775 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 73 recorded · 73 measured · Source: the US BTS 10:00 · Fewer than 200 measured departures · 184 recorded · 182 measured · Source: the US BTS 11:00 · 81.7% · 353 recorded · 350 measured · Source: the US BTS 12:00 · Fewer than 200 measured departures · 170 recorded · 169 measured · Source: the US BTS 13:00 · 86.3% · 241 recorded · 240 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 181 recorded · 179 measured · Source: the US BTS 15:00 · 72.3% · 253 recorded · 249 measured · Source: the US BTS 16:00 · 68.4% · 240 recorded · 237 measured · Source: the US BTS 17:00 · 67.4% · 348 recorded · 340 measured · Source: the US BTS 18:00 · 76.3% · 444 recorded · 435 measured · Source: the US BTS 19:00 · 65.9% · 344 recorded · 337 measured · Source: the US BTS 20:00 · 59.0% · 387 recorded · 371 measured · Source: the US BTS 21:00 · Fewer than 200 measured departures · 29 recorded · 29 measured · Source: the US BTS 22:00 · Fewer than 200 measured departures · 5 recorded · 5 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 · Fewer than 200 measured departures · 5 recorded · 5 measured · Source: the US BTS 06:00 · Fewer than 200 measured departures · 29 recorded · 29 measured · Source: the US BTS 07:00 · 1.2 min · 436 recorded · 429 measured · Source: the US BTS 08:00 · 1.9 min · 783 recorded · 775 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 73 recorded · 73 measured · Source: the US BTS 10:00 · Fewer than 200 measured departures · 184 recorded · 182 measured · Source: the US BTS 11:00 · 7.9 min · 353 recorded · 350 measured · Source: the US BTS 12:00 · Fewer than 200 measured departures · 170 recorded · 169 measured · Source: the US BTS 13:00 · 4.1 min · 241 recorded · 240 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 181 recorded · 179 measured · Source: the US BTS 15:00 · 14.4 min · 253 recorded · 249 measured · Source: the US BTS 16:00 · 20.7 min · 240 recorded · 237 measured · Source: the US BTS 17:00 · 15.2 min · 348 recorded · 340 measured · Source: the US BTS 18:00 · 11.7 min · 444 recorded · 435 measured · Source: the US BTS 19:00 · 20.9 min · 344 recorded · 337 measured · Source: the US BTS 20:00 · 26.5 min · 387 recorded · 371 measured · Source: the US BTS 21:00 · Fewer than 200 measured departures · 29 recorded · 29 measured · Source: the US BTS 22:00 · Fewer than 200 measured departures · 5 recorded · 5 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 · 5 · 5 recorded · 5 measured · Source: the US BTS 06:00 · 29 · 29 recorded · 29 measured · Source: the US BTS 07:00 · 436 · 436 recorded · 429 measured · Source: the US BTS 08:00 · 783 · 783 recorded · 775 measured · Source: the US BTS 09:00 · 73 · 73 recorded · 73 measured · Source: the US BTS 10:00 · 184 · 184 recorded · 182 measured · Source: the US BTS 11:00 · 353 · 353 recorded · 350 measured · Source: the US BTS 12:00 · 170 · 170 recorded · 169 measured · Source: the US BTS 13:00 · 241 · 241 recorded · 240 measured · Source: the US BTS 14:00 · 181 · 181 recorded · 179 measured · Source: the US BTS 15:00 · 253 · 253 recorded · 249 measured · Source: the US BTS 16:00 · 240 · 240 recorded · 237 measured · Source: the US BTS 17:00 · 348 · 348 recorded · 340 measured · Source: the US BTS 18:00 · 444 · 444 recorded · 435 measured · Source: the US BTS 19:00 · 344 · 344 recorded · 337 measured · Source: the US BTS 20:00 · 387 · 387 recorded · 371 measured · Source: the US BTS 21:00 · 29 · 29 recorded · 29 measured · Source: the US BTS 22:00 · 5 · 5 recorded · 5 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———
05:00Fewer than 200 measured departures—55
06:00Fewer than 200 measured departures—2929
07:0095.1%1.2 min429436
08:0091.7%1.9 min775783
09:00Fewer than 200 measured departures—7373
10:00Fewer than 200 measured departures—182184
11:0081.7%7.9 min350353
12:00Fewer than 200 measured departures—169170
13:0086.3%4.1 min240241
14:00Fewer than 200 measured departures—179181
15:0072.3%14.4 min249253
16:0068.4%20.7 min237240
17:0067.4%15.2 min340348
18:0076.3%11.7 min435444
19:0065.9%20.9 min337344
20:0059.0%26.5 min371387
21:00Fewer than 200 measured departures—2929
22:00Fewer than 200 measured departures—55
23:00No observations———

Day of week

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
Monday · 76.9% · 710 recorded · 697 measured · Source: the US BTS Tuesday · 83.7% · 592 recorded · 582 measured · Source: the US BTS Wednesday · 82.8% · 590 recorded · 581 measured · Source: the US BTS Thursday · 76.9% · 676 recorded · 667 measured · Source: the US BTS Friday · 78.6% · 717 recorded · 707 measured · Source: the US BTS Saturday · 80.5% · 498 recorded · 493 measured · Source: the US BTS Sunday · 75.0% · 722 recorded · 707 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 · 14.7 min · 710 recorded · 697 measured · Source: the US BTS Tuesday · 6.5 min · 592 recorded · 582 measured · Source: the US BTS Wednesday · 7.7 min · 590 recorded · 581 measured · Source: the US BTS Thursday · 11.6 min · 676 recorded · 667 measured · Source: the US BTS Friday · 11.0 min · 717 recorded · 707 measured · Source: the US BTS Saturday · 8.3 min · 498 recorded · 493 measured · Source: the US BTS Sunday · 12.5 min · 722 recorded · 707 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 · 710 · 710 recorded · 697 measured · Source: the US BTS Tuesday · 592 · 592 recorded · 582 measured · Source: the US BTS Wednesday · 590 · 590 recorded · 581 measured · Source: the US BTS Thursday · 676 · 676 recorded · 667 measured · Source: the US BTS Friday · 717 · 717 recorded · 707 measured · Source: the US BTS Saturday · 498 · 498 recorded · 493 measured · Source: the US BTS Sunday · 722 · 722 recorded · 707 measured · Source: the US BTS

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View the figures
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
Monday76.9%14.7 min697710
Tuesday83.7%6.5 min582592
Wednesday82.8%7.7 min581590
Thursday76.9%11.6 min667676
Friday78.6%11.0 min707717
Saturday80.5%8.3 min493498
Sunday75.0%12.5 min707722

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 · 84.4% · 374 recorded · 347 measured · Source: the US BTS Feb · 84.6% · 322 recorded · 318 measured · Source: the US BTS Mar · 81.2% · 426 recorded · 421 measured · Source: the US BTS Apr · 81.2% · 446 recorded · 446 measured · Source: the US BTS May · 77.5% · 475 recorded · 475 measured · Source: the US BTS Jun · 72.4% · 452 recorded · 446 measured · Source: the US BTS Jul · 66.2% · 454 recorded · 435 measured · Source: the US BTS Aug · Fewer than 200 measured departures · 198 recorded · 197 measured · Source: the US BTS Sep · Fewer than 200 measured departures · 180 recorded · 180 measured · Source: the US BTS Oct · 82.5% · 376 recorded · 376 measured · Source: the US BTS Nov · 82.4% · 408 recorded · 403 measured · Source: the US BTS Dec · 77.2% · 394 recorded · 390 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 · 5.9 min · 374 recorded · 347 measured · Source: the US BTS Feb · 7.3 min · 322 recorded · 318 measured · Source: the US BTS Mar · 8.8 min · 426 recorded · 421 measured · Source: the US BTS Apr · 7.0 min · 446 recorded · 446 measured · Source: the US BTS May · 13.2 min · 475 recorded · 475 measured · Source: the US BTS Jun · 18.7 min · 452 recorded · 446 measured · Source: the US BTS Jul · 21.9 min · 454 recorded · 435 measured · Source: the US BTS Aug · Fewer than 200 measured departures · 198 recorded · 197 measured · Source: the US BTS Sep · Fewer than 200 measured departures · 180 recorded · 180 measured · Source: the US BTS Oct · 7.0 min · 376 recorded · 376 measured · Source: the US BTS Nov · 6.0 min · 408 recorded · 403 measured · Source: the US BTS Dec · 8.5 min · 394 recorded · 390 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 · 347 measured · Source: the US BTS Feb · 322 · 322 recorded · 318 measured · Source: the US BTS Mar · 426 · 426 recorded · 421 measured · Source: the US BTS Apr · 446 · 446 recorded · 446 measured · Source: the US BTS May · 475 · 475 recorded · 475 measured · Source: the US BTS Jun · 452 · 452 recorded · 446 measured · Source: the US BTS Jul · 454 · 454 recorded · 435 measured · Source: the US BTS Aug · 198 · 198 recorded · 197 measured · Source: the US BTS Sep · 180 · 180 recorded · 180 measured · Source: the US BTS Oct · 376 · 376 recorded · 376 measured · Source: the US BTS Nov · 408 · 408 recorded · 403 measured · Source: the US BTS Dec · 394 · 394 recorded · 390 measured · Source: the US BTS

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View the figures
Month of yearOn-time departuresAverage departure delayWith departure timeRecorded flights
Jan84.4%5.9 min347374
Feb84.6%7.3 min318322
Mar81.2%8.8 min421426
Apr81.2%7.0 min446446
May77.5%13.2 min475475
Jun72.4%18.7 min446452
Jul66.2%21.9 min435454
AugFewer than 200 measured departures—197198
SepFewer than 200 measured departures—180180
Oct82.5%7.0 min376376
Nov82.4%6.0 min403408
Dec77.2%8.5 min390394

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 77.7% 3,500
  • Delayed >15 min 20.7% 934
  • Cancelled 1.6% 71
  • 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

57
57 of 57
Flight numbersBy direction DeparturesOn time
WN2379 BWI → CHS 147 76.6%
WN1742 CHS → BWI 114 81.1%
WN3237 CHS → BWI 90 94.3%
WN1161 CHS → BWI 68 92.4%
WN1637 BWI → CHS 61 80.3%
WN2007 CHS → BWI 61 88.1%
WN1639 BWI → CHS 60 56.1%
WN1843 CHS → BWI 59 82.8%
WN1073 CHS → BWI 58 96.4%
WN3401 CHS → BWI 58 98.3%
WN3652 CHS → BWI 58 94.8%
WN3778 CHS → BWI 58 84.5%
WN4460 CHS → BWI 58 89.1%
WN4622 BWI → CHS 58 82.1%
WN490 BWI → CHS 58 74.1%
WN3144 BWI → CHS 57 63.2%
WN899 BWI → CHS 57 62.5%
WN2008 CHS → BWI 51 88.2%
WN4387 BWI → CHS 51 82.4%
WN1144 CHS → BWI 50 62.5%
WN1600 CHS → BWI 50 94.0%
WN1881 BWI → CHS 50 84.0%
WN2708 CHS → BWI 50 48.0%
WN3004 CHS → BWI 50 80.0%
WN898 BWI → CHS 50 90.0%
WN184 BWI → CHS 49 27.3%
WN1929 CHS → BWI 49 85.7%
WN1086 BWI → CHS 48 75.0%
WN473 BWI → CHS 47 90.9%
WN192 BWI → CHS 46 73.9%
WN1336 BWI → CHS 45 95.4%
WN900 BWI → CHS 45 68.9%
WN1452 BWI → CHS 43 41.5%
WN1614 CHS → BWI 42 83.3%
WN1774 CHS → BWI 42 95.2%
WN2936 BWI → CHS 42 87.8%
WN297 BWI → CHS 42 92.9%
WN558 BWI → CHS 42 85.7%
WN1291 BWI → CHS 40 80.0%
WN3333 BWI → CHS 39 76.9%
WN3463 CHS → BWI 39 82.1%
WN1587 CHS → BWI 38 79.0%
WN2011 CHS → BWI 36 68.6%
WN2152 BWI → CHS 36 51.4%
WN1629 BWI → CHS 35 80.0%
WN1890 CHS → BWI 35 50.0%
WN470 CHS → BWI 34 27.3%
WN997 BWI → CHS 34 79.4%
WN1286 BWI → CHS 33 60.6%
WN1448 BWI → CHS 33 87.9%
WN1766 CHS → BWI 33 100.0%
WN1844 CHS → BWI 33 100.0%
WN3534 BWI → CHS 33 84.9%
WN3964 CHS → BWI 33 90.6%
WN1956 CHS → BWI 31 77.4%
WN1501 BWI → CHS 30 56.7%
WN3817 BWI → CHS 30 86.7%

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 210 −6.7% 10 64.8%
June 2026 213 −8.6% 1 70.0%
May 2026 225 −10.0% 0 74.7%
April 2026 218 −4.4% 0 78.9%
March 2026 207 −3.3% 3 74.4%
February 2026 158 −1.2% 4 84.2%
January 2026 180 +7.8% 12 88.9%
December 2025 202 +7.4% 4 78.2%
November 2025 202 +0.5% 4 82.2%
October 2025 236 +68.6% 0 81.4%
September 2025 180 0 87.8%
August 2025 197 1 78.2%
July 2025 225 9 67.6%
June 2025 233 5 74.7%
May 2025 250 0 80.0%
April 2025 228 0 83.3%
March 2025 214 2 87.9%
February 2025 160 0 85.0%
January 2025 167 15 79.6%
December 2024 188 0 76.1%
November 2024 201 1 82.6%
October 2024 140 0 84.3%

How to read this chart

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