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 19 Nov 1130 UTC 19 Nov 1900 UTC 58/20 58/30 58/40 57/50 - 310 320 330 340 350 360 370 380 390
A 20 Nov 1130 UTC 20 Nov 1900 UTC 58/20 59/30 60/40 61/50 - 310 320 330 350 360 380
B 19 Nov 1130 UTC 19 Nov 1900 UTC 57/20 57/30 57/40 56/50 - 310 320 330 340 350 360 370 380 390
B 20 Nov 1130 UTC 20 Nov 1900 UTC 55/20 56/30 57/40 57/50 - 310 320 330 340 350 360 370 380 390
C 19 Nov 1130 UTC 19 Nov 1900 UTC 56/20 56/30 56/40 55/50 - 310 320 330 340 350 360 370 380 390
C 20 Nov 1130 UTC 20 Nov 1900 UTC 54/20 55/30 56/40 56/50 - 310 320 330 340 350 360 370 380 390
D 19 Nov 1130 UTC 19 Nov 1900 UTC 55/20 55/30 55/40 54/50 - 310 320 330 340 350 360 370 380 390
D 20 Nov 1130 UTC 20 Nov 1900 UTC 53/20 54/30 55/40 54/50 - 310 320 330 340 350 360 370 380 390
E 19 Nov 1130 UTC 19 Nov 1900 UTC 54/20 54/30 54/40 53/50 - 310 320 330 340 350 360 370 380 390
E 20 Nov 1130 UTC 20 Nov 1900 UTC 52/20 53/30 54/40 53/50 - 310 320 330 340 350 360 370 380 390
F 19 Nov 1130 UTC 19 Nov 1900 UTC 53/20 53/30 53/40 52/50 - 310 320 330 340 350 360 370 380 390
F 20 Nov 1130 UTC 20 Nov 1900 UTC 51/20 52/30 53/40 52/50 - 310 320 330 340 350 360 370 380 390
G 19 Nov 1130 UTC 19 Nov 1900 UTC 52/20 52/30 52/40 51/50 - 310 320 330 340 350 360 370 380 390
G 20 Nov 1130 UTC 20 Nov 1900 UTC 50/20 51/30 52/40 51/50 - 310 320 330 340 350 360 370 380 390
H 19 Nov 1130 UTC 19 Nov 1900 UTC 51/20 51/30 51/40 50/50 - 310 320 330 340 350 360 370 380 390
J 19 Nov 1130 UTC 19 Nov 1900 UTC 50/20 50/30 50/40 49/50 - 310 320 330 340 350 360 370 380 390
Q 19 Nov 0100 UTC 19 Nov 0800 UTC 48/50 50/40 52/30 54/20 320 330 340 350 360 370 380 390 400 -
R 19 Nov 0100 UTC 19 Nov 0800 UTC 47/50 49/40 51/30 53/20 320 330 340 350 360 370 380 390 400 -
R 20 Nov 0100 UTC 20 Nov 0800 UTC 50/50 51/40 53/30 55/20 320 330 340 350 360 370 380 390 400 -
S 19 Nov 0100 UTC 19 Nov 0800 UTC 4630/50 4830/40 5030/30 5230/20 350 360 370 380 390 -
S 20 Nov 0100 UTC 20 Nov 0800 UTC 49/50 50/40 52/30 54/20 320 330 340 350 360 370 380 390 400 -
T 19 Nov 0100 UTC 19 Nov 0800 UTC 46/50 48/40 50/30 52/20 320 330 340 350 360 370 380 390 400 -
T 20 Nov 0100 UTC 20 Nov 0800 UTC 48/50 49/40 51/30 53/20 320 330 340 350 360 370 380 390 400 -
U 19 Nov 0100 UTC 19 Nov 0800 UTC 45/50 47/40 49/30 51/20 320 330 340 350 360 370 380 390 400 -
U 20 Nov 0100 UTC 20 Nov 0800 UTC 4730/50 4830/40 5030/30 5230/20 350 360 370 380 390 -
V 19 Nov 0100 UTC 19 Nov 0800 UTC 44/50 46/40 48/30 50/20 320 330 340 350 360 370 380 390 400 -
V 20 Nov 0100 UTC 20 Nov 0800 UTC 47/50 48/40 50/30 52/20 320 330 340 350 360 370 380 390 400 -
W 19 Nov 0100 UTC 19 Nov 0800 UTC 42/60 43/50 45/40 47/30 49/20 320 330 350 360 380 390 400 -
W 20 Nov 0100 UTC 20 Nov 0800 UTC 46/50 47/40 49/30 51/20 320 330 340 350 360 370 380 390 400 -
X 19 Nov 0100 UTC 19 Nov 0800 UTC 40/60 40/50 40/40 330 350 370 -
X 20 Nov 0100 UTC 20 Nov 0800 UTC 45/50 46/40 48/30 50/20 320 330 340 350 360 370 380 390 400 -
Y 19 Nov 0100 UTC 19 Nov 0800 UTC 36/50 41/40 46/30 48/20 48/15 320 360 380 400 -
Y 20 Nov 0100 UTC 20 Nov 0800 UTC 42/60 44/50 45/40 47/30 49/20 320 360 380 400 -
Z 19 Nov 0100 UTC 19 Nov 0800 UTC 34/50 39/40 44/30 47/20 47/15 320 360 380 400 -
Z 20 Nov 0100 UTC 20 Nov 0800 UTC 41/60 43/50 44/40 46/30 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 20 Nov 0700 UTC 20 Nov 2100 UTC 54N160W 52N150W 51N140W
11 20 Nov 1000 UTC 20 Nov 2100 UTC 35N150E 35N160E 33N170E 30N180E 26N170W
14 20 Nov 0700 UTC 20 Nov 2100 UTC 42N160E 45N170E 47N180E 48N170W 46N160W 43N150W 41N140W 38N130W
2 20 Nov 0700 UTC 20 Nov 2100 UTC 44N160E 47N170E 49N180E 50N170W 48N160W 45N150W 43N140W 41N130W
3 20 Nov 0700 UTC 20 Nov 2100 UTC 43N160E 46N170E 48N180E 49N170W 47N160W 44N150W 42N140W 40N130W
8 20 Nov 0700 UTC 20 Nov 2100 UTC 44N160E 47N170E 49N180E 50N170W 49N160W 46N150W 45N140W 44N130W
A 20 Nov 1900 UTC 21 Nov 0800 UTC 24N170W 26N180E 29N170E 31N160E 34N150E
A 19 Nov 1900 UTC 20 Nov 0800 UTC 26N170W 28N180E 31N170E 33N160E 34N150E
B 20 Nov 1900 UTC 21 Nov 0800 UTC 24N170W 26N180E 29N170E 31N160E 34N150E
C 20 Nov 1900 UTC 21 Nov 0800 UTC 53N140W 54N150W 51N160W 47N170W 44N180E 42N170E 40N160E
C 19 Nov 1900 UTC 20 Nov 0800 UTC 53N140W 56N150W 57N160W 56N170W 55N180E
E 20 Nov 1900 UTC 21 Nov 0800 UTC 43N140W 45N150W 44N160W 42N170W 40N180E 39N170E 38N160E 36N150E
E 19 Nov 1900 UTC 20 Nov 0800 UTC 43N140W 43N150W 43N160W 43N170W 43N180E 42N170E 41N160E
F 20 Nov 1900 UTC 21 Nov 0800 UTC 41N140W 43N150W 42N160W 41N170W 39N180E 37N170E 36N160E 35N150E
F 19 Nov 1900 UTC 20 Nov 0800 UTC 41N140W 42N150W 42N160W 41N170W 40N180E 39N170E 38N160E 36N150E
H 19 Nov 1900 UTC 20 Nov 0800 UTC 41N140W 40N150W 38N160W 36N170W 34N180E 31N170E 27N160E 25N150E 23N140E
H 20 Nov 1900 UTC 21 Nov 0800 UTC 39N140W 39N150W 37N160W 35N170W 33N180E 30N170E 27N160E 25N150E 23N140E
I 19 Nov 1900 UTC 20 Nov 0800 UTC 36N140W 38N150W 36N160W 35N170W 33N180E 31N170E 27N160E 25N150E 23N140E
I 20 Nov 1900 UTC 21 Nov 0800 UTC 36N140W 36N150W 35N160W 34N170W 32N180E 30N170E 27N160E 25N150E 23N140E
J 20 Nov 0500 UTC 20 Nov 2100 UTC 40N130W 42N140W 41N150W 40N160W 38N170W 35N180E 33N170E 30N160E 28N150E 27N140E
K 20 Nov 0500 UTC 20 Nov 2100 UTC 40N140W 40N150W 39N160W 37N170W 34N180E 32N170E 29N160E 26N150E 24N140E
M 20 Nov 1900 UTC 21 Nov 0800 UTC 58N160W 57N170W 56N180E
M 19 Nov 1900 UTC 20 Nov 0800 UTC 53N140W 56N150W 57N160W 56N170W 55N180E
Warning: Do not use this data for real-world aviation or navigation. No guarantee of current accuracy is given.