No delays reported for WN 156 (BWI→PHX, MDW→DEN, BWI→SDF) as of 6:47 PM ET. It arrived on time 54.9% of the time in June-August 2026. When it was late, the average delay was 1h 4m. 9.8% of flights were cancelled. Right now there are no reported delays at BWI, PHX, MDW, DEN, SDF.
High cancellation risk
Leg 1 of 3 (BWI → PHX): Not seen in the air yet, 67 min after its scheduled 5:40 PM departure from BWI. It may be delayed, out of receiver range, or not flying today. This flight number flew about 5 days a week in June-August 2026, so it may not operate today. Line up a backup option.
9.8% of its flights were cancelled in June-August 2026.
Estimate from the schedule, live position and airport conditions, if this flight operates today. Check Southwest for official times. Live position: adsb.lol (open data, ODbL).
Book a backup seat BWI → SDFThis flight is cancelled often; a refundable backup costs little
What to do now
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Route and schedule
| Leg | Scheduled | On time |
|---|---|---|
| BWI → PHX Baltimore, MD to Phoenix, AZ | 5:40 PM → 7:30 PM | 45% |
| MDW → DEN Chicago, IL to Denver, CO | 8:15 PM → 9:50 PM | 43% |
| BWI → SDF Baltimore, MD to Louisville, KY | 10:40 PM → 12:25 AM | 58% |
Local times. Schedules change; check your booking.
How reliable is WN 156?
| Arrived on time (within 15 min) | 54.9% |
| Average delay when late | 64 min |
| Cancelled | 9.8% |
| Diverted | 1.1% |
| Flights tracked | 92 |
Best and worst days to fly WN 156
WN 156 was most reliable on Thursdays (73% on time) and least reliable on Saturdays (36%).
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Why it runs late
| Late-arriving plane | |
| Airline (crew, maintenance) | |
| Air traffic system | |
| Extreme weather |
Share of delay minutes by cause, as reported by Southwest to the Department of Transportation.
Other flights BWI → SDF
All flights on this route, ranked
Live status at its airports
We show airport-wide airport status, not this flight's gate or live position. For that, check the Southwest app.
Southwest delays and what you're owed · Airline phone numbers
About this data
On-time history: U.S. Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, June-August 2026. Live conditions: live airport status. "On time" means arriving within 15 minutes of schedule.
Common questions
Is WN 156 delayed today?
Right now there are no reported delays at BWI, PHX, MDW, DEN, SDF. Checked 6:47 PM ET. For this flight's gate and exact status, check the Southwest app.
Is WN 156 usually on time?
WN 156 arrived within 15 minutes of schedule 54.9% of the time in June-August 2026, with an average delay of 64 minutes when late.
How often is WN 156 cancelled?
9.8% of WN 156 flights were cancelled in June-August 2026.