| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Jul 30 | BOS | ZRH | 22:09 | 10:56 |
En-Route
|
Track > |
| Jul 29 | BOS | ZRH | 22:32 | 11:03 |
Landed
|
Track > |
| Jul 28 | BOS | ZRH | 21:58 | 10:49 |
Landed
|
Track > |
| Jul 27 | BOS | ZRH | 22:11 | 11:05 |
Landed
|
Track > |
| Jul 26 | BOS | ZRH | 22:02 | 10:52 |
Landed
|
Track > |
| Jul 25 | BOS | ZRH | 22:17 | 11:00 |
Landed
|
Track > |
| Jul 24 | BOS | ZRH | 21:59 | 11:02 |
Landed
|
Track > |
| Jul 23 | BOS | ZRH | 22:12 | 11:07 |
Landed
|
Track > |
| Jul 22 | BOS | ZRH | 22:13 | 11:08 |
Landed
|
Track > |
| Jul 21 | BOS | ZRH | 22:15 | 11:14 |
Landed Late
|
Track > |
United Airlines Flight UA9721 connects Boston, United States to Zurich, Switzerland, taking off from Boston Logan International Airport BOS and landing at Zurich Airport ZRH.
How long is the UA9721 flight from Boston to Zurich?
The average flight time from Boston to Zurich is 6 hours and 50 minutes. The flight distance is 6010 km / 3734 miles and the average flight speed is 878 km/h / 546 mph.
How many UA9721 flights are operated per week?
7 flights per week. The flight UA9721 is operated on Monday, Tuesday, Wednesday, Thursday, Friday, Saturday and Sunday.
What is the On-Time Performance (OTP) of United Airlines Flight UA9721 Boston to Zurich?
The Airportia On-Time Performance Rating for United Airlines Flight UA9721 is 4.9/5 stars. This metric is calculated using data from the past 10 flights.
Which terminal is the flight UA9721 arriving at?
Flight UA9721 arrives at Zurich Airport (ZRH) Terminal 2.
When was the latest UA9721 flight?
The latest flight took off on Friday, July 31st, 2026 with the flight status being En-Route on 10:56.
How else can the flight UA9721 be referenced as?
This United Airlines flight can also be referenced as UAL9721, UA 9721, UAL 9721.
How often is flight UA9721 delayed?
On average, 80% of all UA9721 flights are delayed. The average delay is 9 minutes.
Can I get compensation for my delayed or cancelled UA9721 flight or baggage issues?
If your UA9721 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 UA9721 Flight Tracker above for more details.
Other flights departing from Boston BOS: LX53, AF331, B61323, B68351
Other flights arriving at Zurich ZRH: LX53, LX975, LX1051, LX1485
All flights connecting Boston BOS to Zurich ZRH.
