No delays reported for WN 856 (MDW→PVD, BWI→BOS, BOS→DAL) as of 6:46 PM ET. It arrived on time 66.1% of the time in June-August 2026. When it was late, the average delay was 1h 25m. 0.8% of flights were cancelled. Right now there are no reported delays at MDW, PVD, BWI, BOS, DAL.
May not fly today
Leg 3 of 3 (BOS → DAL): Should be in the air from BOS, scheduled to land at DAL at 7:30 PM local time. This flight number flew about 3 days a week in June-August 2026, so it may not operate today.
Cancellation risk: Low 0.8% 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.
What to do now
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Route and schedule
| Leg | Scheduled | On time |
|---|---|---|
| MDW → PVD Chicago, IL to Providence, RI | 1:00 PM → 4:10 PM | 66% |
| BWI → BOS Baltimore, MD to Boston, MA | 2:15 PM → 3:45 PM | 17% |
| BOS → DAL Boston, MA to Dallas, TX | 4:30 PM → 7:30 PM | 17% |
Local times. Schedules change; check your booking.
How reliable is WN 856?
| Arrived on time (within 15 min) | 66.1% |
| Average delay when late | 85 min |
| Cancelled | 0.8% |
| Diverted | 1.6% |
| Flights tracked | 127 |
Best and worst days to fly WN 856
WN 856 was most reliable on Saturdays (92% on time) and least reliable on Fridays (29%).
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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 MDW → PVD
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 856 delayed today?
Right now there are no reported delays at MDW, PVD, BWI, BOS, DAL. Checked 6:46 PM ET. For this flight's gate and exact status, check the Southwest app.
Is WN 856 usually on time?
WN 856 arrived within 15 minutes of schedule 66.1% of the time in June-August 2026, with an average delay of 85 minutes when late.
How often is WN 856 cancelled?
0.8% of WN 856 flights were cancelled in June-August 2026.