| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Aug 02 | MDW | BOS | 21:42 | 00:35 |
Delayed
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| Jul 26 | MDW | BOS | 19:18 | 22:10 |
Landed
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| Jul 19 | MDW | BOS | 19:16 | 22:04 |
Landed
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| Jul 12 | MDW | BOS | 18:59 | 21:51 |
Landed
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| Jul 05 | MDW | BOS | 19:00 | 21:46 |
Landed
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| Jun 28 | MDW | BOS | 19:37 | 22:25 |
Landed Late
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| Jun 21 | MDW | BOS | 19:14 | 21:57 |
Landed
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| Jun 14 | MDW | BOS | 19:26 | 22:33 |
Landed Late
|
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| Jun 07 | MDW | BOS | 21:19 | 00:04 |
Delayed
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Track > |
Southwest Airlines Flight WN3521 connects Chicago, United States to Boston, United States, taking off from Chicago Midway International Airport MDW and landing at Boston Logan International Airport BOS.
How long is the WN3521 flight from Chicago to Boston?
The average flight time from Chicago to Boston is 1 hour and 50 minutes. The flight distance is 1381 km / 858 miles and the average flight speed is 753 km/h / 468 mph.
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 4.4/5 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, August 3rd, 2026 with the flight status being En-Route on 00:35.
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, 56% of all WN3521 flights are delayed. The average delay is 67 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.
See our WN3521 Flight Tracker above for more details.
Other flights departing from Chicago MDW: WN2756, WN3669, WN4194, WN4263
Other flights arriving at Boston BOS: UA2798, B6330, AA2306, DL1502
All flights connecting Chicago MDW to Boston BOS.