WN3521 Flight Status Southwest Airlines: Chicago to Boston (SWA3521)

How long is the WN3521 flight from Chicago to Boston?

The average flight time from Chicago to Boston is 1 hour and 56 minutes. The flight distance is 1381 km / 858 miles and the average flight speed is 721 km/h / 448 mph.

How many WN3521 flights are operated per week?

1 flight per week. The flight WN3521 is operated on Sunday.

What is the On-Time Performance (OTP) of Southwest Airlines Flight WN3521 Chicago to Boston?

The Airportia On-Time Performance Rating for Southwest Airlines Flight WN3521 is 3.7/5 stars. This metric is calculated using data from the past 10 flights.

Which terminal is the flight WN3521 arriving at?

Flight WN3521 arrives at Boston Logan International Airport (BOS) Terminal B.

When was the latest WN3521 flight?

The latest flight took off on Monday, June 15th, 2026 with the flight status being Landed on 22:33.

How else can the flight WN3521 be referenced as?

This Southwest Airlines flight can also be referenced as SWA3521, WN 3521, SWA 3521.

How often is flight WN3521 delayed?

On average, 100% of all WN3521 flights are delayed. The average delay is 78 minutes.

Can I get compensation for my delayed or cancelled WN3521 flight or baggage issues?

If your WN3521 flight was cancelled, delayed, or if you experienced baggage issues such as delayed, damaged, or lost bags, you may be entitled to compensation. Compensation amounts and eligibility depend on various regulations, including EC 261/2004, UK261, CA Montreal Convention, US GoodWill, BR-ANAC, SA-GACA and TK-SHY.