WN701 BOS → MDW

Southwest Airlines · Boston, MA to Chicago, IL · 58 flights observed, 2026-01-06 to 2026-03-04 · 861 mi

This flight runs much more reliably at some times of day than others — 93% on-time departing 12–3pm vs. 40% departing 3–6pm.

WN701 covers more than one route in the data window — the stats below are for BOS → MDW, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
69%
Median delay
-2 min
90th percentile
+37 min
Cancellation rate
7%

How often is WN701 on time?

Across 58 flights on BOS → MDW from 2026-01-06 to 2026-03-04, WN701 arrived within 15 minutes of schedule 69% of the time. The median arrival delay was -2 min, and the worst 10% of flights arrived +37 min or later. 7% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time3769%
16-30 min917%
31-60 min713%
61-120 min12%
2+ hrs00%

Performance by month

MonthFlightsOn-timeAvg delay
2026-012580%-1 min
2026-022564%+6 min
2026-03425%+21 min

Performance by day of week

DayFlightsOn-time
Mon729%
Tue875%
Wed9100%
Thu8100%
Fri875%
Sat825%
Sun667%

Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…