Plan a flight · Mon 6:11 am MDT (12:11 UTC)

Missoula Montana Airport to Lehigh Valley International MSO → ABE

1,699 nautical miles (1,955 statute miles) east on a straight line, true course 089°, about 076° magnetic at the departure end (variation 13E). At 120 knots that is 9 h 53 min at the quickest height in today's winds (39,000 ft, a 52-knot tailwind), arriving about 6:04 pm EDT (22:04 UTC). Right now MSO is VFR, wind from the north-northeast (020°) at 3 knots; ABE is marginal VFR, wind calm. For planning, not a briefing: the legal preflight briefing comes from Flight Service (1-800-WX-BRIEF) or the FAA's own tools. Airlines fly this pair: 1 flights in the DOT's last twelve reported months, the route's page.

The route the straight line, the warnings crossed, restrictions, pilot reports and the airports along the way · click a mark for its words

Green, blue, red and purple airport dots are the flying conditions reported there now (VFR, marginal VFR, IFR, low IFR); grey means no report. Red areas are SIGMETs, orange areas AIRMETs, hatched red areas temporary flight restrictions. Map tiles: OpenFreeMap, data © OpenStreetMap contributors.

Warnings the route crosses SIGMETs and AIRMETs whose area the line passes through or comes within 25 nm of

SIGMET C18C: thunderstorms (a convective SIGMET) up to 36,000 ft, moving from the southwest at 40 knots, until 7:55 am MDT (13:55 UTC). Over the route from 550 to 620 nm out.
as issued
```
WSUS32 KKCI 121155
MKCC WST 121155
CONVECTIVE SIGMET 18C
VALID UNTIL 1355Z
SD ND
FROM 50NE BIS-70W FAR-40N PIR-40N DPR-50NE BIS
AREA TS MOV FROM 22040KT. TOPS TO FL360.
```
AIRMET ZULU 2C: moderate icing up to 18,000 ft. Over the first 310 nm of the route.
AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the first 20 nm of the route.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the first 220 nm of the route.
AIRMET SIERRA 4E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the route from 30 to 799 nm out.
AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 320 to 410 nm out.
AIRMET TANGO 2W: low-level wind shear (due to air speed loss or gain of 20 knots or more below 2,000 ft above the ground). Near the route, 1179 nm along the route.
AIRMET SIERRA 3E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the last 430 nm of the route.
AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 24,000 ft to 33,000 ft. Over the last 190 nm of the route.
AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, mist). Over the route from 1509 to 1669 nm out.

A SIGMET warns of weather hazardous to all aircraft; an AIRMET of weather that matters to small aircraft and to flying without instruments. "From 60 to 180 nm out" is measured along the route from MSO.

Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first

urgent SF50 descending, 47 nm east, 4:50 am MDT (10:50 UTC): light turbulence, overcast above 1,200 ft, remarks: during the descent runway 5. At the destination end, 47 nm east of the line.
as filed, and in English
```
MMU UUA /OV MMU/TM 1050/FLDURD/TP SF50/SK OVC012/TB LGT/RM DURD RWY 5
```
Report
an urgent report filed through MMU
Where
over MMU
Time
10:50 UTC
Height
during the descent
Aircraft
SF50
Sky
overcast from 1,200 ft
Turbulence
light
Remarks
during the descent runway 5
E170 at 15,000 ft, 17 nm south, 5:56 am MDT (11:56 UTC): moderate chop turbulence. 1029 nm along the route, 17 nm south of the line.
as filed, and in English
```
Y50 UA /OV Y50330025/TM 1156/FL150/TP E170/TB MOD CHOP
```
Report
a routine report filed through Y50
Where
25 nm northwest (330°) of Y50
Time
11:56 UTC
Height
at 15,000 ft
Aircraft
E170
Turbulence
moderate chop
C340 at 24,000 ft, 5 nm southeast, 4:59 am MDT (10:59 UTC): light to moderate icing, -22 °C. 410 nm along the route, 5 nm southeast of the line.
as filed, and in English
```
DIK UA /OV DIK240054/TM 1059/FL240/TP C340/TA M22/IC LGT-MOD CLR /ZLC
```
Report
a routine report filed through DIK
Where
54 nm southwest (240°) of DIK
Time
10:59 UTC
Height
at 24,000 ft
Aircraft
C340
Temperature
−22 °C
Icing
light to moderate clear zlc
C441 at 5,000 ft, 41 nm south, 5:52 am MDT (11:52 UTC): no turbulence, no icing, remarks: during the climb. 660 nm along the route, 41 nm south of the line.
as filed, and in English
```
ABR UA /OV ABR/TM 1152/FL050/TP C441/SK BASEUNKN-TOP032/TB NEG/IC NEG/RM DURC
```
Report
a routine report filed through ABR
Where
over ABR
Time
11:52 UTC
Height
at 5,000 ft
Aircraft
C441
Sky
BASEUNKN-TOP032
Turbulence
none
Icing
none
Remarks
during the climb
E75L at 1,300 ft, 50 nm north, 5:20 am MDT (11:20 UTC): overcast from 1,300 ft to 2,900 ft. 709 nm along the route, 50 nm north of the line.
as filed, and in English
```
FAR UA /OV FAR/TM 1120/FL013/TP E75L/SK OVC013-TOP029
```
Report
a routine report filed through FAR
Where
over FAR
Time
11:20 UTC
Height
at 1,300 ft
Aircraft
E75L
Sky
overcast from 1,300 ft, tops 2,900 ft
E75L at 20,000 ft, 31 nm north, 4:35 am MDT (10:35 UTC): light to moderate turbulence above 20,000 ft. 859 nm along the route, 31 nm north of the line.
as filed, and in English
```
JMR UA /OV JMR/TM 1035/FL200/TP E75L/TB CONS LGT OCNL MOD 200
```
Report
a routine report filed through JMR
Where
over JMR
Time
10:35 UTC
Height
at 20,000 ft
Aircraft
E75L
Turbulence
continuous light occasional moderate at 20,000 ft
B739 at 34,000 ft, 5 nm west, 5:49 am MDT (11:49 UTC): no turbulence. 1289 nm along the route, 5 nm west of the line.
as filed, and in English
```
FNT UA /OV FNT340025/TM 1149/FL340/TP B739/TB NEG
```
Report
a routine report filed through FNT
Where
25 nm north (340°) of FNT
Time
11:49 UTC
Height
at 34,000 ft
Aircraft
B739
Turbulence
none
CL35 at 6,000 ft, 33 nm southwest, 4:47 am MDT (10:47 UTC): overcast from 1,400 ft to 2,600 ft; clear from 2,600 ft to 60,000 ft, remarks: clear above 2,600 ft. 1319 nm along the route, 33 nm southwest of the line.
as filed, and in English
```
PTK UA /OV PTK270006/TM 1047/FL060/TP CL35/SK OVC014-TOP026/RM CLEAR ABOVE 026
```
Report
a routine report filed through PTK
Where
6 nm west (270°) of PTK
Time
10:47 UTC
Height
at 6,000 ft
Aircraft
CL35
Sky
overcast from 1,400 ft, tops 2,600 ft
Remarks
clear above 2,600 ft
B350 at 2,000 ft, 28 nm southwest, 5:22 am MDT (11:22 UTC): a routine report with nothing remarked on. 1329 nm along the route, 28 nm southwest of the line.
as filed, and in English
```
PTK UA /OV PTK090005/TM 1122/FL020/TP B350/WX FV10SM
```
Report
a routine report filed through PTK
Where
5 nm east (090°) of PTK
Time
11:22 UTC
Height
at 2,000 ft
Aircraft
B350
Weather
flight visibility 10 miles
B739 at 9,000 ft, 29 nm southwest, 4:33 am MDT (10:33 UTC): no turbulence, no icing, clear from 9,000 ft to 60,000 ft, wind 295° at 13 knots, remarks: during the descent. 1339 nm along the route, 29 nm southwest of the line.
as filed, and in English
```
DTW UA /OV DXO033026/TM 1033/FL090/TP B739/SK SKC/WV 29513KTS/TB NEG/IC NEG/RM DURD
```
Report
a routine report filed through DTW
Where
26 nm northeast (033°) of DXO
Time
10:33 UTC
Height
at 9,000 ft
Aircraft
B739
Sky
clear
Wind
from 295° at 13 knots
Turbulence
none
Icing
none
Remarks
during the descent
UAL2759 at 35,000 ft, 46 nm southwest, 5:14 am MDT (11:14 UTC): no turbulence, wind 313° at 72 knots. 1409 nm along the route, 46 nm southwest of the line.
as filed, and in English
```
ARP UAL2759 4155N 08149W 1114 F350 313/072KT TB SMTH IC
```
Report
a routine report filed through ARP
AC90 at 2,000 ft, 12 nm southwest, 5:05 am MDT (11:05 UTC): overcast from 2,000 ft to 4,000 ft. 1469 nm along the route, 12 nm southwest of the line.
as filed, and in English
```
ERI UA /OV JUNOG/TM 1105/FL020/TP AC90/SK OVC020-TOP040
```
Report
a routine report filed through ERI
Where
junog
Time
11:05 UTC
Height
at 2,000 ft
Aircraft
AC90
Sky
overcast from 2,000 ft, tops 4,000 ft
AC90 at 2,000 ft, 9 nm south, 5:05 am MDT (11:05 UTC): remarks: bases reported at at 2,000 ft. 1469 nm along the route, 9 nm south of the line.
as filed, and in English
```
ERI UA /OV KERI/TM 1105/FL020/TP AC90/RM BASES REPORTED AT 020
```
Report
a routine report filed through ERI
Where
over KERI
Time
11:05 UTC
Height
at 2,000 ft
Aircraft
AC90
Remarks
bases reported at at 2,000 ft
C208 at 2,700 ft, 2 nm north, 4:01 am MDT (10:01 UTC): remarks: zob. 1539 nm along the route, 2 nm north of the line.
as filed, and in English
```
BFD UA /OV BFD/TM 1001/FL027/TP C208/SK BASE027 TOP043/RM ZOB
```
Report
a routine report filed through BFD
Where
over BFD
Time
10:01 UTC
Height
at 2,700 ft
Aircraft
C208
Sky
BASE027 TOP043
Remarks
zob

2 more routine reports are on the map.

Winds aloft along the route, and the time en route the forecast for use 08:00–15:00 UTC · at 120 knots true airspeed

The eastbound cruising heights for this course (VFR: odd thousands plus 500 ft; above 18,000 ft the forecast levels), with the wind averaged along the line from the 15 forecast points nearest it (GPI, GTF, BIL, MLS, DIK, ABR, AXN, MSP, LSE, GRB, MKG, CLE, BUF, PSB, AVP). A plus sign is a headwind, a minus sign a tailwind.

Height	Average wind	Head- or tailwind	Temperature	Ground speed	Time en route	Arrival
3,500 ft	270° at 10 kt	−9 kt		129 kt	13 h 10 min	9:21 pm EDT (01:21 UTC)
5,500 ft	280° at 8 kt	−9 kt	4 °C	129 kt	13 h 10 min	9:21 pm EDT (01:21 UTC)
7,500 ft	270° at 10 kt	−11 kt	10 °C	131 kt	12 h 58 min	9:09 pm EDT (01:09 UTC)
9,500 ft	260° at 13 kt	−13 kt	6 °C	133 kt	12 h 46 min	8:57 pm EDT (00:57 UTC)
11,500 ft	260° at 16 kt	−16 kt	2 °C	136 kt	12 h 30 min	8:41 pm EDT (00:41 UTC)
13,500 ft	260° at 18 kt	−18 kt	-1 °C	138 kt	12 h 19 min	8:30 pm EDT (00:30 UTC)
15,500 ft	260° at 20 kt	−21 kt	-6 °C	141 kt	12 h 03 min	8:14 pm EDT (00:14 UTC)
17,500 ft	270° at 22 kt	−23 kt	-10 °C	143 kt	11 h 53 min	8:04 pm EDT (00:04 UTC)
18,000 ft FL180	270° at 22 kt	−23 kt	-11 °C	143 kt	11 h 53 min	8:04 pm EDT (00:04 UTC)
24,000 ft FL240	260° at 26 kt	−27 kt	-23 °C	147 kt	11 h 33 min	7:44 pm EDT (23:44 UTC)
30,000 ft FL300	260° at 30 kt	−31 kt	-36 °C	151 kt	11 h 15 min	7:26 pm EDT (23:26 UTC)
34,000 ft FL340	270° at 40 kt	−42 kt	-42 °C	162 kt	10 h 29 min	6:40 pm EDT (22:40 UTC)
39,000 ft FL390	270° at 49 kt	−52 kt	-48 °C	172 kt	9 h 53 min	6:04 pm EDT (22:04 UTC)

Based on data from the 12th at 06:00 UTC; valid on the 12th at 12:00 UTC for use 08:00 to 15:00 UTC; temperatures above 24,000 ft are below zero. Heights are above sea level; a height is left out when the forecast has no wind for it over most of the line (the ground is higher). Ground speed is the airspeed less the headwind; the time en route is for the straight line and ignores climb, descent and routing around weather.

The forecast points as issued

Point	From	3,000	6,000	9,000	12,000	18,000	24,000	30,000	34,000	39,000
GPI	used from 0 nm out; 89 nm from the line		090/8 -4°	140/7 -7°	090/10 -8°	110/10 -19°	210/25 -30°	200/24 -40°	210/31 -39°	210/35 -42°
GTF	used from 50 nm out; 49 nm from the line		L/V	L/V -7°	240/8 -8°	240/30 -14°	240/40 -28°	210/52 -38°	210/76 -38°	220/72 -43°
BIL	used from 200 nm out; 64 nm from the line		300/14	270/19 -2°	260/26 -2°	220/28 -13°	210/51 -25°	220/56 -33°	220/61 -39°	220/72 -45°
MLS	used from 250 nm out; 67 nm from the line		290/17 -1°	250/18 0°	230/25 0°	220/31 -11°	220/32 -24°	220/50 -32°	220/60 -38°	230/71 -46°
DIK	used from 400 nm out; 41 nm from the line		190/12 5°	230/29 7°	220/33 1°	220/43 -11°	210/47 -23°	220/53 -33°	240/56 -40°	250/72 -47°
ABR	used from 550 nm out; 90 nm from the line	080/12	210/12 17°	220/22 12°	230/26 5°	220/28 -10°	230/41 -21°	250/36 -36°	260/47 -39°	260/63 -47°
AXN	used from 700 nm out; 51 nm from the line	110/6	260/10 16°	240/17 12°	250/20 5°	260/29 -10°	260/35 -22°	260/29 -38°	270/48 -41°	270/61 -48°
MSP	used from 849 nm out; 28 nm from the line	250/12	250/17 17°	240/26 12°	250/26 5°	280/26 -9°	280/32 -22°	270/37 -38°	280/47 -41°	280/55 -48°
LSE	used from 949 nm out; 65 nm from the line	250/25	240/21 17°	240/28 11°	250/28 5°	280/24 -10°	280/31 -21°	260/35 -37°	270/45 -43°	280/59 -47°
GRB	used from 999 nm out; 69 nm from the line	250/32	250/22 17°	240/18 8°	280/21 6°	280/34 -11°	280/35 -21°	280/39 -37°	270/52 -45°	290/60 -49°
MKG	used from 1149 nm out; 48 nm from the line	260/28	260/18 15°	250/16 9°	260/22 4°	280/31 -9°	270/35 -21°	270/44 -35°	270/42 -45°	290/61 -51°
CLE	used from 1299 nm out; 118 nm from the line	310/7	350/20 14°	340/16 9°	320/21 2°	320/32 -8°	330/34 -20°	330/45 -36°	320/60 -45°	320/64 -51°
BUF	used from 1449 nm out; 72 nm from the line	300/11	330/15 11°	340/26 8°	330/28 2°	340/31 -10°	340/32 -21°	340/52 -37°	340/59 -46°	330/66 -53°
PSB	used from 1549 nm out; 39 nm from the line		020/21 12°	360/28 7°	360/29 1°	350/33 -10°	350/42 -22°	350/49 -37°	340/63 -43°	350/39 -52°
AVP	used from 1649 nm out; 32 nm from the line	010/20	020/24 11°	360/19 8°	350/23 2°	320/24 -11°	330/25 -22°	330/27 -37°	310/28 -42°	290/30 -50°

The weather now: both ends and the airports along the way public airports with a weather report within 25 nm of the line, one for each stretch

Airport	Where	Conditions	Wind	Visibility	Ceiling	Elevation	Reported
MSO Missoula, MT	departure	VFR Sky: overcast at 7,500 feet	from the north-northeast (020°) at 3 knots	10+ mi	7,500 ft	3,205 ft	5:53 am MDT (11:53 UTC)
HLN Helena, MT	90 nm out, 20 nm south of the line, tower	VFR Sky: a few clouds at 2,100 feet, overcast at 4,600 feet	from the west (270°) at 7 knots	10+ mi	4,600 ft	3,877 ft	11:53 UTC
LWT Lewistown, MT	190 nm out, 9 nm north of the line	no report just now				4,170 ft
DIK Dickinson, ND	460 nm out, 15 nm north of the line	IFR Sky: overcast at 500 feet Weather: light rain, mist	from the northeast (050°) at 8 knots	2.5 mi	500 ft	2,592 ft	12:03 UTC
BIS Bismarck, ND	550 nm out, 24 nm north of the line, tower	IFR Sky: overcast at 600 feet Weather: mist	from the north-northeast (030°) at 6 knots	6 mi	600 ft	1,661 ft	11:52 UTC
STC St Cloud, MN	829 nm out, 5 nm east of the line, tower	VFR	calm	10+ mi	none	1,030 ft	11:53 UTC
EAU Eau Claire, WI	949 nm out, 11 nm south of the line, tower	VFR	from the south (180°) at 4 knots	10+ mi	none	913 ft	11:56 UTC
CWA Mosinee, WI	1029 nm out, 6 nm north of the line, tower	VFR Sky: a broken layer at 17,000 feet	from the south-southeast (160°) at 5 knots	10+ mi	17,000 ft	1,277 ft	11:50 UTC
MBS Saginaw, MI	1279 nm out, 9 nm north of the line, tower	marginal VFR Weather: mist	from the south-southwest (210°) at 7 knots	4 mi	none	668 ft	11:53 UTC
ERI Erie, PA	1469 nm out, 9 nm south of the line, tower	marginal VFR Sky: overcast at 3,000 feet	variable at 4 knots	10+ mi	3,000 ft	732 ft	00:51 UTC
IPT Williamsport, PA	1619 nm out, 5 nm east of the line, tower	VFR Sky: overcast at 3,900 feet	from the west (260°) at 10 knots	10+ mi	3,900 ft	528 ft	11:54 UTC
ABE Allentown, PA	destination	marginal VFR Sky: overcast at 1,600 feet	calm	10+ mi	1,600 ft	393 ft	7:51 am EDT (11:51 UTC)

The highest airport on this list sits at 4,170 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At ABE when you get there the forecast at the estimated arrival, 6:04 pm EDT (22:04 UTC)

Wind from the west-northwest at 8 knots, visibility more than 6 miles, scattered clouds at 25,000 feet VFR

The whole forecast for ABE

From Mon 8:00 am EDT (12:00 UTC): wind from the north at 8 knots, visibility more than 6 miles, a broken layer at 1,500 feet
From Mon 11:00 am EDT (15:00 UTC): wind from the north-northwest at 10 knots, visibility more than 6 miles, scattered clouds at 3,500 feet
From Mon 6:00 pm EDT (22:00 UTC): wind from the west-northwest at 8 knots, visibility more than 6 miles, scattered clouds at 25,000 feet
From Mon 9:00 pm EDT (01:00 UTC): wind light and variable, visibility more than 6 miles, a few clouds at 25,000 feet

The forecast for MSO, the departure

From Mon 6:00 am MDT (12:00 UTC): wind from the east at 2 knots, visibility more than 6 miles, showers nearby, scattered clouds at 1,500 feet, a broken layer at 4,000 feet
From Mon 8:00 am MDT (14:00 UTC): wind from the east-southeast at 4 knots, visibility more than 6 miles, overcast at 5,000 feet
From Mon 2:00 pm MDT (20:00 UTC): wind from the east-southeast at 5 knots, visibility more than 6 miles, overcast at 10,000 feet

Temporary flight restrictions on the line or within 25 nm of it

6/8927 Kalispell, MT, Wednesday, October 14, 2026 through Wednesday, October 14, 2026 Local on the route, at the departure end · a VIP movement · starts Wednesday 14 October · ZSE
6/8923 Kalispell, MT, Wednesday, October 14, 2026 through Wednesday, October 14, 2026 Local on the route, at the departure end · a VIP movement · starts Wednesday 14 October · ZLC
6/6656 ANOKA, MN, Monday, October 5, 2026 through Monday, October 19, 2026 Local 10 nm from the route, 869 nm along the route · security · until 19 October · ZMP

Daylight

Sunset at MSO 6:53 pm MDT (00:53 UTC), at ABE 6:26 pm EDT (22:26 UTC) (civil twilight ends 6:53 pm EDT (22:53 UTC)).

Each restriction opens the FAA's own page with the exact area, heights and times. Ordinary notices to air missions (closed runways, lights out) are not shown: the FAA's notice search is not open to sites like this one at this time.

Radar and forecast charts for the regions crossed government pictures, the latest each time the page loads

Radar now, the northern Rockies · loop National Weather Service

Radar now, the upper Mississippi valley · loop National Weather Service

Radar now, the central Great Lakes · loop National Weather Service

Radar, the whole country · loop National Weather Service

Surface analysis now Weather Prediction Center

Forecast chart, 12 hours ahead Weather Prediction Center

Forecast chart, 24 hours ahead Weather Prediction Center

Sources: the Aviation Weather Center's data service (SIGMETs, AIRMETs, graphical AIRMETs, pilot reports, winds and temperatures aloft, observations and terminal forecasts), the National Weather Service radar, the Weather Prediction Center's charts, the FAA's temporary flight restriction list and shapes, and the FAA's airport file for the positions, elevations and magnetic variation. Fetched when the page is viewed and kept a few minutes. Each leg is the straight line between its two airports; airways, terrain and airspace are not considered. The airports in detail: Missoula Montana Airport, Lehigh Valley International.