Likely delayed: there are delays at WN 717's airports as of 6:47 PM ET. It arrived on time 78.7% of the time in June-August 2026. When it was late, the average delay was 55 minutes. None were cancelled. 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 (BOI → SMF): Next leg BOI → SMF, scheduled 7:20 PM local time. No delays at BOI right now. This flight number flew about 5 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; 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 |
|---|---|---|
| SFO → MDW San Francisco, CA to Chicago, IL | 5:35 AM → 11:40 AM | 100% |
| MEM → BNA Memphis, TN to Nashville, TN | 2:35 PM → 3:35 PM | 88% |
| BOI → SMF Boise, ID to Sacramento, CA | 7:20 PM → 7:45 PM | 68% |
Local times. Schedules change; check your booking.
How reliable is WN 717?
| Arrived on time (within 15 min) | 78.7% |
| Average delay when late | 55 min |
| Cancelled | 0% |
| Diverted | 0% |
| Flights tracked | 108 |
Best and worst days to fly WN 717
WN 717 was most reliable on Saturdays (100% on time) and least reliable on Fridays (46%).
| Monday | |
| Tuesday | |
| Wednesday | |
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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 BOI → SMF
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 717 delayed today?
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 717 usually on time?
WN 717 arrived within 15 minutes of schedule 78.7% of the time in June-August 2026, with an average delay of 55 minutes when late.
How often is WN 717 cancelled?
0% of WN 717 flights were cancelled in June-August 2026.