NATs
North Atlantic Tracks (NATs) are daily high altitude transatlantic routes between western Europe and the eastern coast of North-America, which provide consistent separation between aircraft. Westward tracks are named incrementally from the beginning of the alphabet (A,B,C...), with the northernmost tracks named first. Similarly, eastward tracks are named incrementally from the end of the alphabet (Z,Y,X...), with the southernmost tracks named first. Daily updates for each direction allow for routing around weather systems and tracking of favourable tailwinds to improve efficiency. The table below shows the current valid NATs and the upcoming published NATs, along with the permissible flight levels in each direction.

Track Valid From Valid To Route East Levels West Levels
A 20 Sep 1130 UTC 20 Sep 1900 UTC 61/20 63/30 63/40 62/50 - 310 320 330 350 360 370
A 21 Sep 1130 UTC 21 Sep 1900 UTC 61/20 62/30 61/40 59/50 - 310 320 330 350 360 370
B 20 Sep 1130 UTC 20 Sep 1900 UTC 60/20 62/30 62/40 61/50 - 310 320 330 350 360 370
B 21 Sep 1130 UTC 21 Sep 1900 UTC 60/20 61/30 60/40 58/50 - 310 320 330 340 350 360 370
C 20 Sep 1130 UTC 20 Sep 1900 UTC 59/20 61/30 61/40 60/50 - 310 320 330 350 360 370 380 390
C 21 Sep 1130 UTC 21 Sep 1900 UTC 59/20 60/30 59/40 57/50 - 310 320 330 340 350 360 370 380 390
D 20 Sep 1130 UTC 20 Sep 1900 UTC 55/20 53/30 50/40 47/50 - 310 320 330 350 360 370 390
D 21 Sep 1130 UTC 21 Sep 1900 UTC 58/20 59/30 58/40 56/50 - 310 320 330 340 350 360 370 380 390
E 20 Sep 1130 UTC 20 Sep 1900 UTC 54/20 52/30 49/40 46/50 - 310 320 330 350 360 370 390
E 21 Sep 1130 UTC 21 Sep 1900 UTC 5730/20 5830/30 5730/40 5530/50 - 350 360 370 380 390
F 20 Sep 1130 UTC 20 Sep 1900 UTC 53/20 51/30 48/40 45/50 - 310 320 330 350 360 370 390
F 21 Sep 1130 UTC 21 Sep 1900 UTC 57/20 58/30 57/40 55/50 - 310 320 330 340 350 360 370 380 390
G 20 Sep 1130 UTC 20 Sep 1900 UTC 52/20 50/30 47/40 44/50 - 310 320 330 350 360 370 390
G 21 Sep 1130 UTC 21 Sep 1900 UTC 56/20 57/30 56/40 54/50 - 310 320 330 340 350 360 370 380 390
H 20 Sep 1130 UTC 20 Sep 1900 UTC 51/20 49/30 46/40 43/50 - 310 320 330 350 360 370 390
J 20 Sep 1130 UTC 20 Sep 1900 UTC 50/20 48/30 45/40 42/50 42/60 - 310 320 330 350 360 370 390
K 20 Sep 1130 UTC 20 Sep 1900 UTC 44/40 41/50 - 310 330 350 370 390
S 22 Sep 0100 UTC 22 Sep 0800 UTC 57/50 57/40 58/30 57/20 320 340 350 360 380 390 400 -
T 21 Sep 0100 UTC 21 Sep 0800 UTC 53/50 54/40 54/30 54/20 320 330 340 350 360 370 380 390 400 -
T 22 Sep 0100 UTC 22 Sep 0800 UTC 56/50 56/40 57/30 56/20 320 340 350 360 380 390 400 -
U 21 Sep 0100 UTC 21 Sep 0800 UTC 52/50 53/40 53/30 53/20 320 330 340 350 360 370 380 390 400 -
U 22 Sep 0100 UTC 22 Sep 0800 UTC 49/50 50/40 51/30 52/20 320 330 340 350 360 370 380 390 400 -
V 21 Sep 0100 UTC 21 Sep 0800 UTC 51/50 52/40 52/30 52/20 320 330 340 350 360 370 380 390 400 -
V 22 Sep 0100 UTC 22 Sep 0800 UTC 48/50 49/40 50/30 51/20 320 330 340 350 360 370 380 390 400 -
W 21 Sep 0100 UTC 21 Sep 0800 UTC 5030/50 5130/40 5130/30 5130/20 350 360 370 380 390 -
W 22 Sep 0100 UTC 22 Sep 0800 UTC 4730/50 4830/40 4930/30 5030/20 350 360 370 380 390 -
X 21 Sep 0100 UTC 21 Sep 0800 UTC 50/50 51/40 51/30 51/20 320 330 340 350 360 370 380 390 400 -
X 22 Sep 0100 UTC 22 Sep 0800 UTC 47/50 48/40 49/30 50/20 320 330 340 350 360 370 380 390 400 -
Y 21 Sep 0100 UTC 21 Sep 0800 UTC 49/50 50/40 50/30 50/20 320 330 340 350 360 370 380 390 400 -
Y 22 Sep 0100 UTC 22 Sep 0800 UTC 46/50 47/40 48/30 49/20 320 330 350 360 380 390 400 -
Z 21 Sep 0100 UTC 21 Sep 0800 UTC 44/50 46/40 46/30 45/20 350 370 -
Z 22 Sep 0100 UTC 22 Sep 0800 UTC 43/50 46/40 47/30 48/20 48/15 320 360 380 400 -
PACOTS
Pacific Organised Track System (PACOTS) tracks are daily high altitude pacific routes between eastern Asia and the western coast of North-America. Eastward tracks are named numerically (1,2,3...). Similarly, westward tracks are named incrementally from the beginning of the alphabet (A,B,C...). Daily updates for each direction allow for routing around weather systems and tracking of favourable tailwinds to improve efficiency. The table below shows the current valid PACOTS tracks and the upcoming published PACOTS tracks.

Track Valid From Valid To Route
1 21 Sep 0700 UTC 21 Sep 2100 UTC 42N160E 45N170E 47N180E 49N170W 52N160W 53N150W 52N140W
11 21 Sep 1000 UTC 21 Sep 2100 UTC 36N150E 38N160E 38N170E 36N180E 32N170W
12 21 Sep 1000 UTC 21 Sep 2100 UTC 36N150E 36N160E 34N170E 31N180E 27N170W
14 21 Sep 0700 UTC 21 Sep 2100 UTC 39N160E 41N170E 42N180E 43N170W 44N160W 44N150W 42N140W 38N130W
2 21 Sep 0700 UTC 21 Sep 2100 UTC 41N160E 44N170E 45N180E 46N170W 47N160W 47N150W 46N140W 42N130W
3 21 Sep 0700 UTC 21 Sep 2100 UTC 40N160E 43N170E 44N180E 45N170W 46N160W 46N150W 44N140W 40N130W
8 21 Sep 0700 UTC 21 Sep 2100 UTC 41N160E 44N170E 45N180E 47N170W 48N160W 48N150W 47N140W 43N130W
A 21 Sep 1900 UTC 22 Sep 0800 UTC 24N170W 27N180E 29N170E 30N160E 32N150E
C 21 Sep 1900 UTC 22 Sep 0800 UTC 52N140W 54N150W 56N160W 56N170W
E 21 Sep 1900 UTC 22 Sep 0800 UTC 42N130W 45N140W 48N150W 51N160W 53N170W 53N180E
F 21 Sep 1900 UTC 22 Sep 0800 UTC 43N140W 46N150W 49N160W 50N170W 49N180E 47N170E 44N160E
H 21 Sep 1900 UTC 22 Sep 0800 UTC 36N140W 34N150W 32N160W 30N170W 29N180E 28N170E 26N160E 25N150E 22N140E
J 21 Sep 0500 UTC 21 Sep 2100 UTC 47N140W 50N150W 54N160W
K 21 Sep 0500 UTC 21 Sep 2100 UTC 35N140W 34N150W 33N160W 31N170W 30N180E 29N170E 28N160E 27N150E 27N140E
M 21 Sep 1900 UTC 22 Sep 0800 UTC 52N140W 54N150W 56N160W 56N170W
Warning: Do not use this data for real-world aviation or navigation. No guarantee of current accuracy is given.