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1,607 km · Domestic

Baltimore/Washington International Thurgood Marshall (BWI) – Louis Armstrong New Orleans (MSY)

In July 2026, 174 flights operated between Baltimore/Washington International Thurgood Marshall and Louis Armstrong New Orleans (both directions), and 57.5% 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
January171144▼ 15.8%
February201156▼ 22.4%
March249189▼ 24.1%
April234200▼ 14.5%
May214186▼ 13.1%
June214172▼ 19.6%
July217174▼ 19.8%
August200––
September192––
October227–in progress
November220––
December226––
Year to date (Jan–Jul)1,5001,221▼ 18.6%

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
January83.6%84.0%▲ 0.5%
February80.6%79.5%▼ 1.4%
March81.9%65.6%▼ 19.9%
April86.3%82.5%▼ 4.4%
May77.1%71.5%▼ 7.3%
June62.1%61.6%▼ 0.8%
July65.0%57.5%▼ 11.5%
August87.0%––
September83.3%––
October78.0%–in progress
November80.9%––
December81.0%––
Year-to-date average (Jan–Jul)76.7%71.7%▼ 6.4%

Cancelled flights by month

The most recent periods19 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January217▼ 66.7%
February04–
March35▲ 66.7%
April00–
May00–
June20▼ 100.0%
July74▼ 42.9%
August5––
September0––
October0–in progress
November1––
December2––
Year to date (Jan–Jul)3320▼ 39.4%

Airlines on this route

  1. Southwest Airlines 83.9%
  2. Spirit Airlines 15.3%
  3. Frontier Airlines 0.8%

Oct 1, 2024 – Jul 31, 2026

By direction

BWI → MSY

Scheduled flights
2,203
Flights operated
2,172
Cancelled
31 · 1.4%
On-time departures
75.0%

MSY → BWI

Scheduled flights
2,188
Flights operated
2,157
Cancelled
31 · 1.4%
On-time departures
79.4%

BWI → MSY and MSY → BWI counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
Southwest Airlines WN 3,684 83.9% 76.4% 53
Spirit Airlines NK 671 15.3% 81.7% 9
Frontier Airlines F9 36 0.8% 77.8% 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 delay05:00–06:00-0.6min · 255 recorded · 250 measured
Gap to highest-delay hour26.5min05:00 ↔ 21:00
Recorded flights4,391BWI–MSY

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 · 94.8% · 255 recorded · 250 measured · Source: the US BTS 06:00 · 95.0% · 487 recorded · 482 measured · Source: the US BTS 07:00 · Fewer than 200 measured departures · 116 recorded · 116 measured · Source: the US BTS 08:00 · 90.0% · 314 recorded · 311 measured · Source: the US BTS 09:00 · 85.1% · 303 recorded · 301 measured · Source: the US BTS 10:00 · 88.3% · 260 recorded · 256 measured · Source: the US BTS 11:00 · Fewer than 200 measured departures · 138 recorded · 138 measured · Source: the US BTS 12:00 · Fewer than 200 measured departures · 86 recorded · 85 measured · Source: the US BTS 13:00 · 85.3% · 223 recorded · 218 measured · Source: the US BTS 14:00 · 70.6% · 350 recorded · 343 measured · Source: the US BTS 15:00 · 69.5% · 350 recorded · 347 measured · Source: the US BTS 16:00 · 65.4% · 293 recorded · 289 measured · Source: the US BTS 17:00 · 62.2% · 246 recorded · 241 measured · Source: the US BTS 18:00 · Fewer than 200 measured departures · 202 recorded · 198 measured · Source: the US BTS 19:00 · 67.7% · 261 recorded · 257 measured · Source: the US BTS 20:00 · Fewer than 200 measured departures · 194 recorded · 191 measured · Source: the US BTS 21:00 · 58.0% · 262 recorded · 257 measured · Source: the US BTS 22:00 · Fewer than 200 measured departures · 51 recorded · 49 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 · -0.6 min · 255 recorded · 250 measured · Source: the US BTS 06:00 · 0.6 min · 487 recorded · 482 measured · Source: the US BTS 07:00 · Fewer than 200 measured departures · 116 recorded · 116 measured · Source: the US BTS 08:00 · 5.0 min · 314 recorded · 311 measured · Source: the US BTS 09:00 · 6.4 min · 303 recorded · 301 measured · Source: the US BTS 10:00 · 5.0 min · 260 recorded · 256 measured · Source: the US BTS 11:00 · Fewer than 200 measured departures · 138 recorded · 138 measured · Source: the US BTS 12:00 · Fewer than 200 measured departures · 86 recorded · 85 measured · Source: the US BTS 13:00 · 9.0 min · 223 recorded · 218 measured · Source: the US BTS 14:00 · 17.6 min · 350 recorded · 343 measured · Source: the US BTS 15:00 · 18.9 min · 350 recorded · 347 measured · Source: the US BTS 16:00 · 20.4 min · 293 recorded · 289 measured · Source: the US BTS 17:00 · 24.0 min · 246 recorded · 241 measured · Source: the US BTS 18:00 · Fewer than 200 measured departures · 202 recorded · 198 measured · Source: the US BTS 19:00 · 22.0 min · 261 recorded · 257 measured · Source: the US BTS 20:00 · Fewer than 200 measured departures · 194 recorded · 191 measured · Source: the US BTS 21:00 · 25.9 min · 262 recorded · 257 measured · Source: the US BTS 22:00 · Fewer than 200 measured departures · 51 recorded · 49 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 · 255 · 255 recorded · 250 measured · Source: the US BTS 06:00 · 487 · 487 recorded · 482 measured · Source: the US BTS 07:00 · 116 · 116 recorded · 116 measured · Source: the US BTS 08:00 · 314 · 314 recorded · 311 measured · Source: the US BTS 09:00 · 303 · 303 recorded · 301 measured · Source: the US BTS 10:00 · 260 · 260 recorded · 256 measured · Source: the US BTS 11:00 · 138 · 138 recorded · 138 measured · Source: the US BTS 12:00 · 86 · 86 recorded · 85 measured · Source: the US BTS 13:00 · 223 · 223 recorded · 218 measured · Source: the US BTS 14:00 · 350 · 350 recorded · 343 measured · Source: the US BTS 15:00 · 350 · 350 recorded · 347 measured · Source: the US BTS 16:00 · 293 · 293 recorded · 289 measured · Source: the US BTS 17:00 · 246 · 246 recorded · 241 measured · Source: the US BTS 18:00 · 202 · 202 recorded · 198 measured · Source: the US BTS 19:00 · 261 · 261 recorded · 257 measured · Source: the US BTS 20:00 · 194 · 194 recorded · 191 measured · Source: the US BTS 21:00 · 262 · 262 recorded · 257 measured · Source: the US BTS 22:00 · 51 · 51 recorded · 49 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
00:00No observations———
01:00No observations———
02:00No observations———
03:00No observations———
04:00No observations———
05:0094.8%-0.6 min250255
06:0095.0%0.6 min482487
07:00Fewer than 200 measured departures—116116
08:0090.0%5.0 min311314
09:0085.1%6.4 min301303
10:0088.3%5.0 min256260
11:00Fewer than 200 measured departures—138138
12:00Fewer than 200 measured departures—8586
13:0085.3%9.0 min218223
14:0070.6%17.6 min343350
15:0069.5%18.9 min347350
16:0065.4%20.4 min289293
17:0062.2%24.0 min241246
18:00Fewer than 200 measured departures—198202
19:0067.7%22.0 min257261
20:00Fewer than 200 measured departures—191194
21:0058.0%25.9 min257262
22:00Fewer than 200 measured departures—4951
23:00No observations———

Day of week

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
Monday · 78.6% · 681 recorded · 667 measured · Source: the US BTS Tuesday · 83.4% · 529 recorded · 519 measured · Source: the US BTS Wednesday · 81.0% · 528 recorded · 521 measured · Source: the US BTS Thursday · 72.1% · 675 recorded · 669 measured · Source: the US BTS Friday · 76.2% · 682 recorded · 675 measured · Source: the US BTS Saturday · 79.3% · 522 recorded · 521 measured · Source: the US BTS Sunday · 73.3% · 774 recorded · 757 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 · 14.5 min · 681 recorded · 667 measured · Source: the US BTS Tuesday · 9.9 min · 529 recorded · 519 measured · Source: the US BTS Wednesday · 8.0 min · 528 recorded · 521 measured · Source: the US BTS Thursday · 15.4 min · 675 recorded · 669 measured · Source: the US BTS Friday · 15.1 min · 682 recorded · 675 measured · Source: the US BTS Saturday · 11.5 min · 522 recorded · 521 measured · Source: the US BTS Sunday · 16.2 min · 774 recorded · 757 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 · 681 · 681 recorded · 667 measured · Source: the US BTS Tuesday · 529 · 529 recorded · 519 measured · Source: the US BTS Wednesday · 528 · 528 recorded · 521 measured · Source: the US BTS Thursday · 675 · 675 recorded · 669 measured · Source: the US BTS Friday · 682 · 682 recorded · 675 measured · Source: the US BTS Saturday · 522 · 522 recorded · 521 measured · Source: the US BTS Sunday · 774 · 774 recorded · 757 measured · Source: the US BTS

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View the figures
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
Monday78.6%14.5 min667681
Tuesday83.4%9.9 min519529
Wednesday81.0%8.0 min521528
Thursday72.1%15.4 min669675
Friday76.2%15.1 min675682
Saturday79.3%11.5 min521522
Sunday73.3%16.2 min757774

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 · 83.8% · 343 recorded · 315 measured · Source: the US BTS Feb · 80.1% · 361 recorded · 357 measured · Source: the US BTS Mar · 74.9% · 446 recorded · 438 measured · Source: the US BTS Apr · 84.6% · 434 recorded · 434 measured · Source: the US BTS May · 74.5% · 400 recorded · 400 measured · Source: the US BTS Jun · 61.9% · 388 recorded · 386 measured · Source: the US BTS Jul · 61.6% · 402 recorded · 391 measured · Source: the US BTS Aug · 87.0% · 205 recorded · 200 measured · Source: the US BTS Sep · Fewer than 200 measured departures · 192 recorded · 192 measured · Source: the US BTS Oct · 79.8% · 372 recorded · 372 measured · Source: the US BTS Nov · 82.2% · 417 recorded · 415 measured · Source: the US BTS Dec · 81.1% · 431 recorded · 429 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 · 9.6 min · 343 recorded · 315 measured · Source: the US BTS Feb · 11.9 min · 361 recorded · 357 measured · Source: the US BTS Mar · 13.7 min · 446 recorded · 438 measured · Source: the US BTS Apr · 6.8 min · 434 recorded · 434 measured · Source: the US BTS May · 16.2 min · 400 recorded · 400 measured · Source: the US BTS Jun · 29.8 min · 388 recorded · 386 measured · Source: the US BTS Jul · 25.4 min · 402 recorded · 391 measured · Source: the US BTS Aug · 5.9 min · 205 recorded · 200 measured · Source: the US BTS Sep · Fewer than 200 measured departures · 192 recorded · 192 measured · Source: the US BTS Oct · 8.4 min · 372 recorded · 372 measured · Source: the US BTS Nov · 10.1 min · 417 recorded · 415 measured · Source: the US BTS Dec · 9.1 min · 431 recorded · 429 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 · 343 · 343 recorded · 315 measured · Source: the US BTS Feb · 361 · 361 recorded · 357 measured · Source: the US BTS Mar · 446 · 446 recorded · 438 measured · Source: the US BTS Apr · 434 · 434 recorded · 434 measured · Source: the US BTS May · 400 · 400 recorded · 400 measured · Source: the US BTS Jun · 388 · 388 recorded · 386 measured · Source: the US BTS Jul · 402 · 402 recorded · 391 measured · Source: the US BTS Aug · 205 · 205 recorded · 200 measured · Source: the US BTS Sep · 192 · 192 recorded · 192 measured · Source: the US BTS Oct · 372 · 372 recorded · 372 measured · Source: the US BTS Nov · 417 · 417 recorded · 415 measured · Source: the US BTS Dec · 431 · 431 recorded · 429 measured · Source: the US BTS

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View the figures
Month of yearOn-time departuresAverage departure delayWith departure timeRecorded flights
Jan83.8%9.6 min315343
Feb80.1%11.9 min357361
Mar74.9%13.7 min438446
Apr84.6%6.8 min434434
May74.5%16.2 min400400
Jun61.9%29.8 min386388
Jul61.6%25.4 min391402
Aug87.0%5.9 min200205
SepFewer than 200 measured departures—192192
Oct79.8%8.4 min372372
Nov82.2%10.1 min415417
Dec81.1%9.1 min429431

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 76.1% 3,343
  • Delayed >15 min 22.5% 986
  • Cancelled 1.4% 62
  • 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

58
58 of 58
Flight numbersBy direction DeparturesOn time
WN126 MSY → BWI 118 93.0%
WN754 BWI → MSY 117 83.9%
WN537 MSY → BWI 86 76.5%
NK1832 BWI → MSY 63 88.9%
NK1833 MSY → BWI 63 82.3%
NK938 BWI → MSY 63 91.9%
NK943 MSY → BWI 63 80.7%
WN1235 BWI → MSY 63 76.3%
WN1813 BWI → MSY 61 80.3%
WN2061 MSY → BWI 61 55.9%
WN3589 MSY → BWI 61 81.0%
WN2125 BWI → MSY 60 44.8%
WN1044 MSY → BWI 58 96.6%
WN1225 BWI → MSY 58 86.2%
WN1845 BWI → MSY 58 93.0%
WN3249 BWI → MSY 58 84.5%
WN3481 MSY → BWI 58 96.6%
WN4567 BWI → MSY 58 43.6%
WN968 BWI → MSY 58 89.5%
WN1226 BWI → MSY 57 77.2%
WN1588 MSY → BWI 57 80.4%
WN2191 BWI → MSY 57 79.0%
WN4281 MSY → BWI 57 92.6%
WN1849 BWI → MSY 56 76.8%
WN3245 MSY → BWI 56 100.0%
WN3841 MSY → BWI 55 85.5%
WN2062 MSY → BWI 52 80.8%
WN2363 BWI → MSY 52 42.3%
WN3789 MSY → BWI 50 60.0%
WN4323 BWI → MSY 50 34.7%
WN4551 MSY → BWI 49 91.8%
NK1703 MSY → BWI 46 86.4%
NK1704 BWI → MSY 46 73.3%
WN1357 BWI → MSY 46 75.6%
WN1971 BWI → MSY 46 87.0%
NK2577 BWI → MSY 42 95.2%
NK2580 MSY → BWI 42 78.6%
WN2475 MSY → BWI 42 71.4%
WN3176 BWI → MSY 42 90.0%
WN2985 MSY → BWI 41 95.1%
WN2986 MSY → BWI 41 51.2%
WN4692 BWI → MSY 41 68.3%
WN4285 MSY → BWI 39 66.7%
NK2285 MSY → BWI 35 57.1%
NK2286 BWI → MSY 35 65.7%
WN646 MSY → BWI 34 85.3%
WN1060 BWI → MSY 33 78.8%
WN1649 BWI → MSY 33 56.3%
WN1769 BWI → MSY 33 87.9%
WN1837 MSY → BWI 33 59.4%
WN2760 BWI → MSY 33 58.1%
WN3849 MSY → BWI 33 59.4%
WN3893 BWI → MSY 33 66.7%
WN846 MSY → BWI 33 66.7%
WN1862 BWI → MSY 31 61.3%
WN1889 MSY → BWI 31 90.3%
WN2223 BWI → MSY 31 90.3%
WN678 MSY → BWI 30 73.3%

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 174 −19.8% 4 57.5%
June 2026 172 −19.6% 0 61.6%
May 2026 186 −13.1% 0 71.5%
April 2026 200 −14.5% 0 82.5%
March 2026 189 −24.1% 5 65.6%
February 2026 156 −22.4% 4 79.5%
January 2026 144 −15.8% 7 84.0%
December 2025 226 +11.3% 2 81.0%
November 2025 220 +12.8% 1 80.9%
October 2025 227 +56.6% 0 78.0%
September 2025 192 0 83.3%
August 2025 200 5 87.0%
July 2025 217 7 65.0%
June 2025 214 2 62.1%
May 2025 214 0 77.1%
April 2025 234 0 86.3%
March 2025 249 3 81.9%
February 2025 201 0 80.6%
January 2025 171 21 83.6%
December 2024 203 0 81.3%
November 2024 195 1 83.6%
October 2024 145 0 82.8%

How to read this chart

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