Likely delayed: there are delays at WN 3579's airports as of 6:47 PM ET. It arrived on time 58.8% of the time in June-August 2026. When it was late, the average delay was 1h 5m. None were cancelled. MCO has delays (RWY:Disabled Aircraft, 16 minutes to 30 minutes (increasing)); SFO has major delays (wind, max 5 hours and 41 minutes), so this flight is likely to be delayed.
May not fly today
Leg 3 of 3 (BUR → SFO): Next leg BUR → SFO, scheduled 5:30 PM local time. No delays at BUR right now. This flight number flew about 3 days a week in June-August 2026, so it may not operate today.
Cancellation risk: Medium 0% of its flights were cancelled in June-August 2026; MCO, SFO has major delays.
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 → RIC Chicago, IL to Richmond, VA | 12:40 PM → 3:30 PM | 69% |
| RIC → MCO Richmond, VA to Orlando, FL | 4:10 PM → 6:15 PM | 33% |
| BUR → SFO Burbank, CA to San Francisco, CA | 5:30 PM → 6:50 PM | 67% |
Local times. Schedules change; check your booking.
How reliable is WN 3579?
| Arrived on time (within 15 min) | 58.8% |
| Average delay when late | 65 min |
| Cancelled | 0% |
| Diverted | 0% |
| Flights tracked | 97 |
Best and worst days to fly WN 3579
WN 3579 was most reliable on Wednesdays (100% on time) and least reliable on Sundays (39%).
| Monday | |
| Tuesday | |
| Wednesday | |
| Thursday | |
| Friday | |
| Saturday | Too few flights |
| Sunday |
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 → RIC
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 3579 delayed today?
MCO has delays (RWY:Disabled Aircraft, 16 minutes to 30 minutes (increasing)); SFO has major delays (wind, max 5 hours and 41 minutes), so this flight is likely to be delayed. Checked 6:47 PM ET. For this flight's gate and exact status, check the Southwest app.
Is WN 3579 usually on time?
WN 3579 arrived within 15 minutes of schedule 58.8% of the time in June-August 2026, with an average delay of 65 minutes when late.
How often is WN 3579 cancelled?
0% of WN 3579 flights were cancelled in June-August 2026.