UA9721 Flight Status United Airlines: Boston to Zurich (UAL9721)

United Airlines UA 9721

Landed On Time

BOS Boston

Scheduled
21:50
Actual
22:03

Terminal: E | Gate: E7

Departure: Sun, Nov 8, 2026 · local time EST

Boston Logan International Airport (BOS)

All BOS Departures >

ZRH Zurich

Scheduled
11:10
Actual
11:06

Terminal: 2

Arrival: Mon, Nov 9, 2026 · local time CET

Zurich Airport (ZRH)

All ZRH Arrivals >

Landed 1h 07m ago 100%

BOS 22:03 ZRH 11:06 +1

6,010 km (3,734 mi) flown

Route map BOS to ZRH Map of the great-circle route from Boston Logan International Airport, United States to Zurich Airport, Switzerland, 6010 km. The plane shows an estimated position based on departure and arrival times. Map data: Natural Earth. BOS ZRH Map data: Natural Earth

Estimated position based on departure and arrival times, not live tracking. Times are local at each airport.

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Distance: 6010 km / 3734 miles · Scheduled Duration: 07:20 · Actual Duration: 07:03

UA 9721 Flight Status & Schedule United Airlines Boston to Zurich

Date From To Departure Arrival Status Details
Nov 08 BOS ZRH 22:03 11:06 Landed Track >
Nov 07 BOS ZRH 22:15 11:01 Landed Track >
Nov 06 BOS ZRH 22:13 11:11 Landed Track >
Nov 05 BOS ZRH 22:08 11:08 Landed Track >
Nov 04 BOS ZRH 21:51 11:00 Landed Track >
Nov 03 BOS ZRH 22:02 11:10 Landed Track >
Nov 02 BOS ZRH 22:03 11:04 Landed Track >
Nov 01 BOS ZRH 22:54 12:03 Delayed Track >
Oct 31 BOS ZRH 23:09 11:09 Landed Track >

United Airlines flight UA 9721 links Boston and Zurich, 6,010 km (3,734 mi) apart, and flies six times a week: Tuesday, Wednesday, Thursday, Friday, Saturday and Sunday. Its timetable allows 7 h 20 min; in practice it usually takes about 7 h, so it often makes up time. Yesterday it left on time and landed at 11:06 the next morning, 4 minutes early.

< All Boston BOS Departures All Zurich ZRH Arrivals >

About UA 9721

Route
Boston Logan International Airport BOS to Zurich Airport ZRH
Distance
6,010 km (3,734 mi)
Typical flight time
7 h
Flies
Tue, Wed, Thu, Fri, Sat, Sun
On time
8 of the last 8
Usually departs from
Terminal E

UA 9721 FAQ

How long is the UA9721 flight?
The timetable allows 7 h 20 min. Boston to Zurich is 6,010 km (3,734 mi).
How often is UA9721 late?
None of the last 8 flights arrived 15 or more minutes late.
Which days does UA9721 fly?
Six times a week: Tuesday, Wednesday, Thursday, Friday, Saturday and Sunday, based on the schedule of the last 7 days.
Which terminal does UA9721 use?
It usually leaves from Terminal E at Boston Logan International Airport (BOS) and arrives at Terminal 2 at Zurich Airport (ZRH). Check the flight card above for today's terminal and gate.
What other flight numbers does UA9721 have?
Also listed as UAL9721 (United Airlines' ICAO code) and UA 9721.

UA9721 and Boston BOS to Zurich ZRH Flights

Flight UA9721 is a code-share United Airlines flight of the Swiss operated LX53.

Other flights departing from Boston BOS: B61323, LX53, YX4520

Other flights arriving at Zurich ZRH: LX53, IB627, LX1679, OS135

All flights connecting Boston BOS to Zurich ZRH.