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828 km · Domestic

Baltimore/Washington International Thurgood Marshall (BWI) – Indianapolis (IND)

In July 2026, 231 flights operated between Baltimore/Washington International Thurgood Marshall and Indianapolis (both directions), and 67.1% 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
January176179▲ 1.7%
February174153▼ 12.1%
March182174▼ 4.4%
April194212▲ 9.3%
May210211▲ 0.5%
June226228▲ 0.9%
July229231▲ 0.9%
August194––
September190––
October238–in progress
November199––
December194––
Year to date (Jan–Jul)1,3911,388▼ 0.2%

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
January80.7%83.8%▲ 3.8%
February82.8%83.7%▲ 1.1%
March78.0%73.6%▼ 5.6%
April81.4%78.3%▼ 3.8%
May79.0%74.4%▼ 5.8%
June73.5%75.4%▲ 2.6%
July70.7%67.1%▼ 5.1%
August79.4%––
September87.4%––
October79.8%–in progress
November86.4%––
December70.6%––
Year-to-date average (Jan–Jul)78.0%76.6%▼ 1.8%

Cancelled flights by month

The most recent periods19 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January57▲ 40.0%
February19▲ 800.0%
March24▲ 100.0%
April00–
May00–
June20▼ 100.0%
July97▼ 22.2%
August2––
September0––
October0–in progress
November3––
December0––
Year to date (Jan–Jul)1927▲ 42.1%

By direction

BWI → IND

Scheduled flights
2,189
Flights operated
2,164
Cancelled
25 · 1.1%
On-time departures
73.9%

IND → BWI

Scheduled flights
2,190
Flights operated
2,164
Cancelled
26 · 1.2%
On-time departures
82.8%

BWI → IND and IND → BWI counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
Southwest Airlines WN 4,379 100.0% 78.3% 51

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 delay05:00–06:00-1.4min · 409 recorded · 402 measured
Gap to highest-delay hour23.1min05:00 ↔ 18:00
Recorded flights4,379BWI–IND

Departure hour

On-time departures Partial coverage: only airlines that report on-time data to the US DOT

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

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

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———
05:0096.8%-1.4 min402409
06:00Fewer than 200 measured departures—125126
07:00Fewer than 200 measured departures—108108
08:0093.1%1.8 min305307
09:0089.3%4.1 min400401
10:0087.9%4.2 min281284
11:00Fewer than 200 measured departures—164164
12:00Fewer than 200 measured departures—153153
13:0078.3%10.1 min230230
14:0074.3%13.6 min249250
15:0069.3%16.9 min358362
16:00Fewer than 200 measured departures—175177
17:0070.9%17.6 min285289
18:0067.5%21.6 min305313
19:0064.3%19.6 min227234
20:00Fewer than 200 measured departures—166168
21:0063.0%21.6 min238239
22:00Fewer than 200 measured departures—157165
23:00No observations———

Day of week

On-time departures Partial coverage: only airlines that report on-time data to the US DOT

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

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

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

View the figures
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
Monday77.0%14.3 min648664
Tuesday83.5%7.4 min605609
Wednesday83.7%6.9 min601605
Thursday79.2%10.0 min662664
Friday77.7%11.7 min674678
Saturday76.8%12.2 min465466
Sunday71.0%17.1 min673693

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

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

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

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
Jan82.3%6.5 min355367
Feb83.2%7.0 min327337
Mar75.8%16.0 min356362
Apr79.8%9.4 min406406
May76.7%12.5 min421421
Jun74.5%15.4 min454456
Jul68.9%19.3 min460476
AugFewer than 200 measured departures—194196
SepFewer than 200 measured departures—190190
Oct81.0%9.6 min378378
Nov85.0%6.8 min401404
Dec74.4%12.6 min386386

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 77.4% 3,390
  • Delayed >15 min 21.4% 938
  • Cancelled 1.2% 51
  • 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

55
55 of 55
Flight numbersBy direction DeparturesOn time
WN3361 BWI → IND 112 83.8%
WN2585 IND → BWI 96 89.6%
WN1098 BWI → IND 91 77.5%
WN1714 BWI → IND 61 82.0%
WN1716 BWI → IND 61 69.5%
WN1717 BWI → IND 61 32.8%
WN1841 IND → BWI 60 86.2%
WN547 IND → BWI 60 61.4%
WN1625 IND → BWI 58 93.0%
WN1739 BWI → IND 58 100.0%
WN1982 IND → BWI 58 96.4%
WN2113 IND → BWI 58 91.2%
WN1155 BWI → IND 57 54.4%
WN1740 BWI → IND 57 75.4%
WN1916 IND → BWI 57 87.7%
WN1925 IND → BWI 57 96.5%
WN2617 BWI → IND 57 77.2%
WN725 IND → BWI 57 75.4%
WN409 IND → BWI 55 76.4%
WN4388 IND → BWI 50 86.0%
WN4925 BWI → IND 50 77.1%
WN1912 BWI → IND 49 71.4%
WN2147 IND → BWI 49 91.8%
WN450 BWI → IND 47 80.4%
WN484 BWI → IND 47 95.6%
WN3151 IND → BWI 46 75.6%
WN1063 IND → BWI 43 69.1%
WN3192 IND → BWI 43 97.7%
WN377 IND → BWI 43 86.1%
WN1253 IND → BWI 42 100.0%
WN2155 BWI → IND 42 95.2%
WN2460 IND → BWI 42 66.7%
WN3216 IND → BWI 42 87.5%
WN397 IND → BWI 42 95.2%
WN4536 IND → BWI 42 65.9%
WN866 IND → BWI 42 92.3%
WN960 BWI → IND 42 81.0%
WN330 BWI → IND 40 72.5%
WN1044 IND → BWI 37 86.1%
WN4115 BWI → IND 36 72.2%
WN1712 BWI → IND 34 82.4%
WN2485 IND → BWI 34 88.2%
WN3248 IND → BWI 34 97.1%
WN961 BWI → IND 34 41.2%
WN1147 BWI → IND 33 45.2%
WN3364 IND → BWI 33 93.8%
WN4216 BWI → IND 33 50.0%
WN660 BWI → IND 33 81.8%
WN962 BWI → IND 33 46.9%
WN1690 BWI → IND 32 81.3%
WN2459 IND → BWI 32 62.5%
WN4463 BWI → IND 32 40.6%
WN4547 BWI → IND 32 67.7%
WN1121 IND → BWI 31 93.6%
WN1751 BWI → IND 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 231 +0.9% 7 67.1%
June 2026 228 +0.9% 0 75.4%
May 2026 211 +0.5% 0 74.4%
April 2026 212 +9.3% 0 78.3%
March 2026 174 −4.4% 4 73.6%
February 2026 153 −12.1% 9 83.7%
January 2026 179 +1.7% 7 83.8%
December 2025 194 +1.0% 0 70.6%
November 2025 199 −1.5% 3 86.4%
October 2025 238 +70.0% 0 79.8%
September 2025 190 0 87.4%
August 2025 194 2 79.4%
July 2025 229 9 70.7%
June 2025 226 2 73.5%
May 2025 210 0 79.0%
April 2025 194 0 81.4%
March 2025 182 2 78.0%
February 2025 174 1 82.8%
January 2025 176 5 80.7%
December 2024 192 0 78.1%
November 2024 202 0 83.7%
October 2024 140 0 82.9%

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