Missoula Montana Airport to Terre Haute Regional MSO → HUF
1,248 nautical miles (1,436 statute miles) east on a straight line, true course 101°, about 088° magnetic at the departure end (variation 13E). At 120 knots that is 7 h 39 min at the quickest height in today's winds (39,000 ft, a 43-knot tailwind), arriving about 3:13 pm EDT (19:13 UTC). 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: 2 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 C17C: thunderstorms (a convective SIGMET) up to 36,000 ft, moving from the southwest at 40 knots, until 6:55 am MDT (12:55 UTC). Near the route, 519 nm along the route.
as issued
WSUS32 KKCI 121055 MKCC WST 121055 CONVECTIVE SIGMET 17C VALID UNTIL 1255Z SD ND FROM 20NW BIS-60E BIS-20WNW PIR-20SW DPR-20NW BIS AREA TS MOV FROM 22040KT. TOPS TO FL360.
- AIRMET ZULU 2C: moderate icing up to 18,000 ft. Over the first 260 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 260 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 729 nm out.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 270 to 379 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). Over the route from 759 to 1068 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
No pilot reports within 50 nautical miles of the line in the last three hours.
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 12 forecast points nearest it (GPI, GTF, BIL, MLS, RAP, PIR, ONL, FSD, DSM, BRL, SPI, IND). A plus sign is a headwind, a minus sign a tailwind.
| Height | Average wind | Head- or tailwind | Temperature | Ground speed | Time en route | Arrival |
|---|---|---|---|---|---|---|
| 5,500 ft | 260° at 18 kt | −14 kt | 10 °C | 134 kt | 9 h 19 min | 4:53 pm EDT (20:53 UTC) |
| 7,500 ft | 250° at 17 kt | −13 kt | 12 °C | 133 kt | 9 h 23 min | 4:57 pm EDT (20:57 UTC) |
| 9,500 ft | 240° at 18 kt | −12 kt | 6 °C | 132 kt | 9 h 27 min | 5:01 pm EDT (21:01 UTC) |
| 11,500 ft | 240° at 21 kt | −13 kt | 3 °C | 133 kt | 9 h 23 min | 4:57 pm EDT (20:57 UTC) |
| 13,500 ft | 240° at 22 kt | −14 kt | -1 °C | 134 kt | 9 h 19 min | 4:53 pm EDT (20:53 UTC) |
| 15,500 ft | 240° at 23 kt | −14 kt | -5 °C | 134 kt | 9 h 19 min | 4:53 pm EDT (20:53 UTC) |
| 17,500 ft | 230° at 24 kt | −14 kt | -9 °C | 134 kt | 9 h 19 min | 4:53 pm EDT (20:53 UTC) |
| 18,000 ft FL180 | 230° at 24 kt | −14 kt | -10 °C | 134 kt | 9 h 19 min | 4:53 pm EDT (20:53 UTC) |
| 24,000 ft FL240 | 230° at 35 kt | −19 kt | -23 °C | 139 kt | 8 h 59 min | 4:33 pm EDT (20:33 UTC) |
| 30,000 ft FL300 | 240° at 42 kt | −29 kt | -34 °C | 149 kt | 8 h 23 min | 3:57 pm EDT (19:57 UTC) |
| 34,000 ft FL340 | 250° at 49 kt | −36 kt | -38 °C | 156 kt | 8 h | 3:34 pm EDT (19:34 UTC) |
| 39,000 ft FL390 | 250° at 53 kt | −43 kt | -46 °C | 163 kt | 7 h 39 min | 3:13 pm EDT (19:13 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; 94 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; 63 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 150 nm out; 65 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 299 nm out; 56 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° | |
| RAP | used from 399 nm out; 81 nm from the line | 250/28 16° | 260/31 10° | 240/25 4° | 210/35 -10° | 200/45 -23° | 230/47 -31° | 230/47 -36° | 230/51 -46° | |
| PIR | used from 549 nm out; 29 nm from the line | 230/15 15° | 220/22 14° | 220/24 6° | 200/32 -10° | 210/48 -22° | 240/45 -33° | 240/43 -37° | 250/55 -46° | |
| ONL | used from 649 nm out; 72 nm from the line | 250/31 22° | 230/27 16° | 220/25 8° | 230/25 -9° | 220/29 -22° | 250/42 -33° | 250/48 -36° | 250/52 -46° | |
| FSD | used from 699 nm out; 46 nm from the line | 210/20 | 230/23 21° | 220/25 14° | 230/30 5° | 230/26 -9° | 240/30 -21° | 270/33 -36° | 260/47 -37° | 270/58 -47° |
| DSM | used from 848 nm out; 64 nm from the line | 250/47 | 260/25 20° | 240/19 11° | 240/31 5° | 250/26 -9° | 260/38 -20° | 260/47 -34° | 270/58 -37° | 270/61 -47° |
| BRL | used from 998 nm out; 35 nm from the line | 250/32 | 250/19 17° | 260/15 11° | 270/16 3° | 290/23 -7° | 260/42 -20° | 270/52 -34° | 280/63 -39° | 290/64 -48° |
| SPI | used from 1098 nm out; 37 nm from the line | 260/28 | 250/22 15° | 250/14 9° | 260/20 6° | 280/27 -7° | 280/34 -19° | 280/48 -32° | 280/59 -41° | 300/60 -49° |
| IND | used from 1198 nm out; 69 nm from the line | 270/22 | 290/19 15° | 270/19 8° | 270/18 4° | 290/28 -7° | 280/35 -20° | 270/37 -34° | 300/51 -42° | 300/61 -51° |
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 | no report just now | 3,205 ft | ||||
| HLN Helena, MT | 90 nm out, 1 nm west of the line, tower | no report just now | 3,877 ft | ||||
| BIL Billings, MT | 240 nm out, 12 nm south of the line, tower | no report just now | 3,662 ft | ||||
| EFC Belle Fourche, SD | 449 nm out, 16 nm southwest of the line | no report just now | 3,190 ft | ||||
| PIR Pierre, SD | 599 nm out, 17 nm north of the line | no report just now | 1,744 ft | ||||
| MHE Mitchell, SD | 699 nm out, 19 nm northeast of the line | no report just now | 1,304 ft | ||||
| SKI Sac City, IA | 858 nm out, 4 nm southwest of the line | no report just now | 1,249 ft | ||||
| DSM Des Moines, IA | 928 nm out, 25 nm south of the line, tower | no report just now | 957 ft | ||||
| PIA Peoria, IL | 1118 nm out, 11 nm north of the line, tower | no report just now | 660 ft | ||||
| CMI Champaign/Urbana, IL | 1188 nm out, 9 nm northeast of the line, tower | no report just now | 754 ft | ||||
| HUF Terre Haute, IN | destination | no report just now | 589 ft |
The highest airport on this list sits at 3,877 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At HUF when you get there the forecast at the estimated arrival, 3:13 pm EDT (19:13 UTC)
HUF has no terminal forecast; use the nearest airport that does.
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
Daylight
Sunset at MSO 6:53 pm MDT (00:53 UTC), at HUF 7:14 pm EDT (23:14 UTC) (civil twilight ends 7:41 pm EDT (23:41 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
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, Terre Haute Regional.