Tracked flight number

S4221

RZO221Azores AirlinesAug 21 – Sep 24, 2026

Data through Sep 24, 2026 UTC

Analysis window

Aug 21 – Sep 24, 2026

Every derived statistic, daily trend, route, tail number assignment, flight observation, and mapped path below uses this flight-date window.

Global rankings

Among tracked flight numbers · Aug 21 – Sep 24, 2026

Explore flight numbers

Tracked flights

#88,057of 163,734 · tied

Tracked distance

#36,802of 163,734

22,093 mi

Observed time

#36,866of 163,734

48.3 hr

Route breadth

#33,359of 163,734 · tied

Active aircraft

#95,450of 163,734 · tied

Active days

#86,739of 163,734 · tied

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Tracked flights9

9 active days

Tracked distance22,093 mi

2,455 mi avg per flight

Observed time48 hr 19 min

5 hr 22 min average

Tracking Confidence100.0%

Average across flights included in analytics

Named routes1

1 aircraft type

Average mid-flight altitude10,383 m

Average mid-flight speed743 km/h

Tracked activity

Aug 21 – Sep 24, 2026 · 9 active days

Flights9

Aug 21

Aug 23

Aug 28

Aug 30

Sep 4

Sep 6

Sep 11

Sep 13

Sep 20

Observed route footprint

Routes tracked as S4221

Directional airport pairings in Aug 21 – Sep 24, 2026.

1 routes shown

Route	Flights	Active days	Tail numbers	Tracked distance	Observed	First observed	Last observed
PDL → BOS	9	9	0	22,093 mi	48 hr 19 min	Aug 21, 2026, 8:59 AM UTC	Sep 20, 2026, 2:25 PM UTC

Observed tail number assignments

Tail numbers tracked as S4221

Open a tail number for its complete tracked profile.

4 tail numbers shown

Tail number	Type	Flights	Routes	Tracked distance	First observed	Last observed
CS-TSG	A21N	5	1	12,381 mi	Aug 21, 2026, 8:59 AM UTC	Sep 11, 2026, 2:46 PM UTC
CS-TSH	A21N	2	1	4,899 mi	Aug 23, 2026, 8:46 AM UTC	Sep 6, 2026, 2:48 PM UTC
CS-TSF	A21N	1	1	2,424 mi	Sep 20, 2026, 8:53 AM UTC	Sep 20, 2026, 2:25 PM UTC
CS-TSJ	A21N	1	1	2,389 mi	Sep 13, 2026, 10:38 AM UTC	Sep 13, 2026, 3:40 PM UTC

Observed aircraft types

Aircraft types tracked as S4221

Observed flights grouped by aircraft designator and matched to the aircraft reference catalog.

1 aircraft types shown

Type	Aircraft name	Flights	Makeup	Tail numbers	Tracked distance	Routes	First observed	Last observed
A21N	Airbus A321neo	9	100.0%	4	22,093 mi	1	Aug 21, 2026, 8:59 AM UTC	Sep 20, 2026, 2:25 PM UTC

Observation log

Flight observations

Latest 100 flights for S4221 within Aug 21 – Sep 24, 2026

10 observations shown

Confidence	Route	Tail number	Aircraft	First observed	Last observed	Observed	Tracked distance
High · 100	PDL → BOS	CS-TSF	A21N	Sep 20, 2026, 8:53 AM UTC	Sep 20, 2026, 2:25 PM UTC	5 hr 31 min	2,424 mi
Low · 20	Route unverified	CS-TSG	A21N	Sep 18, 2026, 8:51 AM UTC	Sep 18, 2026, 2:05 PM UTC	5 hr 14 min	2,468 mi
High · 100	PDL → BOS