How often is WN3431 on time?

Across 15 flights on PHL → MDW from 2026-03-05 to 2026-04-06, WN3431 arrived within 15 minutes of schedule 79% of the time. The median arrival delay was +9 min, and the worst 10% of flights arrived +32 min or later. 7% of flights were cancelled.

Delay distribution

Arrival delay for completed flights (excludes cancellations and diversions).

Performance by month

Performance by day of week

Other routes

• WN3431 on RDU → MCO (23 flights)
• WN3431 on ABQ → BWI (4 flights)
• WN3431 on MIA → STL (39 flights)
• WN3431 on MCO → PHL (33 flights)
• WN3431 on SAN → SMF (58 flights)
• WN3431 on DTW → MDW (46 flights)
• WN3431 on LGA → DAL (18 flights)
• WN3431 on DAL → SLC (5 flights)
• WN3431 on LAS → DTW (24 flights)
• WN3431 on BWI → DTW (1 flights)
• WN3431 on LAS → SNA (31 flights)
• WN3431 on SNA → SMF (14 flights)
• WN3431 on SEA → LAS (1 flights)
• WN3431 on PDX → LAS (4 flights)
• WN3431 on ALB → MCO (15 flights)
• WN3431 on LAS → SJC (25 flights)
• WN3431 on LGB → LAS (24 flights)
• WN3431 on RNO → LGB (5 flights)

Related

• All Southwest Airlines flights on PHL → MDW
• Compare airlines on PHL → MDW
• Southwest Airlines on the return, MDW → PHL