No delays reported for WN 1139 (BWI→MDW, MDW→BZN, BZN→SAN) as of 6:47 PM ET. It arrived on time 64.7% of the time in June-August 2026. When it was late, the average delay was 51 minutes. None were cancelled. Right now there are no reported delays at BWI, MDW, BZN, SAN.
May not fly today
Leg 1 of 3 (BWI → MDW): Next leg BWI → MDW, scheduled 10:00 AM local time. No delays at BWI right now. This flight number flew about 3 days a week in June-August 2026, so it may not operate today.
Cancellation risk: Low 0% 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 |
|---|---|---|
| BWI → MDW Baltimore, MD to Chicago, IL | 10:00 AM → 11:00 AM | 69% |
| MDW → BZN Chicago, IL to Bozeman, MT | 11:00 AM → 1:10 PM | 58% |
| BZN → SAN Bozeman, MT to San Diego, CA | 1:50 PM → 3:30 PM | 61% |
Local times. Schedules change; check your booking.
How reliable is WN 1139?
| Arrived on time (within 15 min) | 64.7% |
| Average delay when late | 51 min |
| Cancelled | 0% |
| Diverted | 0% |
| Flights tracked | 116 |
Best and worst days to fly WN 1139
WN 1139 was most reliable on Saturdays (79% on time) and least reliable on Tuesdays (47%).
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| Tuesday | |
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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.
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 1139 delayed today?
Right now there are no reported delays at BWI, MDW, BZN, SAN. Checked 6:47 PM ET. For this flight's gate and exact status, check the Southwest app.
Is WN 1139 usually on time?
WN 1139 arrived within 15 minutes of schedule 64.7% of the time in June-August 2026, with an average delay of 51 minutes when late.
How often is WN 1139 cancelled?
0% of WN 1139 flights were cancelled in June-August 2026.