| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Jun 03 | BOS | AUS | 15:14 | 17:52 |
Landed
|
Track > |
| Jun 02 | BOS | AUS | 15:16 | 17:54 |
Landed
|
Track > |
| Jun 01 | BOS | AUS | 13:50 | 16:35 |
Landed
|
Track > |
| May 31 | BOS | AUS | 14:30 | 17:23 |
Landed Late
|
Track > |
| May 29 | BOS | AUS | 13:51 | 16:36 |
Landed
|
Track > |
| May 28 | BOS | AUS | 13:55 | 16:43 |
Landed
|
Track > |
| May 27 | BOS | AUS | 15:00 | 18:03 |
Landed
|
Track > |
| May 26 | BOS | AUS | 14:48 | 17:47 |
Landed
|
Track > |
| May 25 | BOS | AUS | 14:11 | 17:11 |
Landed
|
Track > |
| May 24 | BOS | AUS | 11:25 | 14:25 |
Landed
|
Track > |
Southwest Airlines Flight WN3857 connects Boston, United States to Austin, United States, taking off from Boston Logan International Airport BOS and landing at Austin Bergstrom International Airport AUS.
How long is the WN3857 flight from Boston to Austin?
The average flight time from Boston to Austin is 3 hours and 50 minutes. The flight distance is 2729 km / 1696 miles and the average flight speed is 710 km/h / 441 mph.
What is the On-Time Performance (OTP) of Southwest Airlines Flight WN3857 Boston to Austin?
The Airportia On-Time Performance Rating for Southwest Airlines Flight WN3857 is 5/5 stars. This metric is calculated using data from the past 10 flights.
When was the latest WN3857 flight?
The latest flight took off on Wednesday, June 3rd, 2026 with the flight status being Landed on 17:52.
How else can the flight WN3857 be referenced as?
This Southwest Airlines flight can also be referenced as SWA3857, WN 3857, SWA 3857.
How often is flight WN3857 delayed?
On average, 20% of all WN3857 flights are delayed. The average delay is 12 minutes.
Can I get compensation for my delayed or cancelled WN3857 flight or baggage issues?
If your WN3857 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 WN3857 Flight Tracker above for more details.
Other flights departing from Boston BOS: WN898, 9K109, 9K3032, 9K5172
Other flights arriving at Austin AUS: WN2588, WN3077, WN1874, WN1311
All flights connecting Boston BOS to Austin AUS.