Plan a flight · Mon 8:01 am PDT (15:01 UTC)

Fresno Yosemite International to Billings Logan International FAT → BIL

739 nautical miles (850 statute miles) northeast on a straight line, true course 039°, about 026° magnetic at the departure end (variation 13E). At 120 knots that is 4 h 27 min at the quickest height in today's winds (34,000 ft, a 46-knot tailwind), arriving about 1:28 pm MDT (19:28 UTC). Right now FAT is VFR, wind from the southeast (130°) at 8 knots; BIL is VFR, wind from the southwest (230°) at 3 knots. 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

AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the first 180 nm of the route.
AIRMET SIERRA 2E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the first 60 nm of the route.
AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the last 589 nm of the route.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the last 579 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 last 310 nm of the route.
AIRMET ZULU 2C: moderate icing up to 18,000 ft. Near the route, 709 nm along the route.

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 FAT.

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

UAL1806 at 39,000 ft, 48 nm northwest, 5:32 am PDT (12:32 UTC): light chop turbulence, wind 238° at 14 knots. At the departure end, 48 nm northwest of the line.
as filed, and in English
```
ARP UAL1806 3722N 12024W 1232 F390 238/014KT TB OCNL LGT CHOP IC
```
Report
a routine report filed through ARP
B737 at 15,000 ft, 39 nm northwest, 5:12 am PDT (12:12 UTC): light chop turbulence, remarks: continuous light turbulence occasional moderate chop entered by zoa fdcs. 80 nm along the route, 39 nm northwest of the line.
as filed, and in English
```
FAT UA /OV FMG150080/TM 1212/FL150/TP B737/TB LGT/RM CONS LGT TURB OCNL MOD CHOP ENTERED BY ZOA FDCS
```
Report
a routine report filed through FAT
Where
80 nm southeast (150°) of FMG
Time
12:12 UTC
Height
at 15,000 ft
Aircraft
B737
Turbulence
light
Remarks
continuous light turbulence occasional moderate chop entered by zoa fdcs
BCS1 at 25,000 ft, 1 nm southeast, 5:22 am PDT (12:22 UTC): a routine report with nothing remarked on. 489 nm along the route, 1 nm southeast of the line.
as filed, and in English
```
PIH UA /OV PIH/TM 1222/FL250/TP BCS1/SK TOP 265/ZLC
```
Report
a routine report filed through PIH
Where
over PIH
Time
12:22 UTC
Height
at 25,000 ft
Aircraft
BCS1
Sky
top 26,500 ft; zlc
CRJ7 at 4,800 ft, 4 nm northeast, 5:10 am PDT (12:10 UTC): overcast above 4,800 ft, remarks: during the descent runway 21 pih. 489 nm along the route, 4 nm northeast of the line.
as filed, and in English
```
PIH UA /OV KPIH/TM 1210/FL048/TP CRJ7/SK OVC048-TOPUNKN/RM DURD RY21 PIH
```
Report
a routine report filed through PIH
Where
over KPIH
Time
12:10 UTC
Height
at 4,800 ft
Aircraft
CRJ7
Sky
overcast from 4,800 ft, tops unknown
Remarks
during the descent runway 21 pih
C25A at 5,000 ft, 3 nm west, 6:00 am PDT (13:00 UTC): light rime icing, 4 °C, remarks: lt rime in the descent. At the destination end, 3 nm west of the line.
as filed, and in English
```
BIL UA /OV 100006/TM 1300/FL050/TP C25A/TA 4/IC LT RIME/RM LT RIME IN THE DESCENT
```
Report
a routine report filed through BIL
Where
wind from 100° at 6 knots
Time
13:00 UTC
Height
at 5,000 ft
Aircraft
C25A
Temperature
4 °C
Icing
lt rime
Remarks
lt rime in the descent

Winds aloft along the route, and the time en route the forecast for use 14:00–21:00 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 6 forecast points nearest it (FAT, BIH, BAM, PIH, DLN, BIL). 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	light and variable	0		120 kt	6 h 10 min	3:11 pm MDT (21:11 UTC)
7,500 ft	240° at 3 kt	−3 kt	-3 °C	123 kt	6 h	3:01 pm MDT (21:01 UTC)
9,500 ft	230° at 6 kt	−6 kt	-3 °C	126 kt	5 h 52 min	2:53 pm MDT (20:53 UTC)
11,500 ft	220° at 12 kt	−12 kt	-6 °C	132 kt	5 h 36 min	2:37 pm MDT (20:37 UTC)
13,500 ft	220° at 18 kt	−18 kt	-10 °C	138 kt	5 h 21 min	2:22 pm MDT (20:22 UTC)
15,500 ft	210° at 25 kt	−24 kt	-13 °C	144 kt	5 h 08 min	2:09 pm MDT (20:09 UTC)
17,500 ft	210° at 31 kt	−31 kt	-17 °C	151 kt	4 h 54 min	1:55 pm MDT (19:55 UTC)
18,000 ft FL180	210° at 33 kt	−32 kt	-18 °C	152 kt	4 h 52 min	1:53 pm MDT (19:53 UTC)
24,000 ft FL240	200° at 35 kt	−33 kt	-27 °C	153 kt	4 h 50 min	1:51 pm MDT (19:51 UTC)
30,000 ft FL300	220° at 45 kt	−44 kt	-32 °C	164 kt	4 h 30 min	1:31 pm MDT (19:31 UTC)
34,000 ft FL340	220° at 47 kt	−46 kt	-37 °C	166 kt	4 h 27 min	1:28 pm MDT (19:28 UTC)
39,000 ft FL390	220° at 46 kt	−45 kt	-42 °C	165 kt	4 h 29 min	1:30 pm MDT (19:30 UTC)

Based on data from the 12th at 12:00 UTC; valid on the 12th at 18:00 UTC for use 14:00 to 21:00 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
FAT	used from 0 nm out; 25 nm from the line	L/V	170/5 2°	130/10 -4°	L/V -7°	350/60 -11°	340/62 -23°	320/36 -38°	270/25 -41°	250/32 -44°
BIH	used from 50 nm out; 28 nm from the line		L/V	340/7 -3°	L/V -8°	250/15 -17°	330/30 -24°	270/23 -34°	230/35 -39°	230/39 -44°
BAM	used from 150 nm out; 98 nm from the line			270/8 -4°	260/21 -11°	190/44 -21°	200/54 -28°	210/38 -31°	220/38 -35°	210/35 -41°
PIH	used from 350 nm out; 118 nm from the line		L/V	180/8 -1°	190/21 -6°	210/56 -18°	190/64 -28°	210/68 -31°	210/60 -36°	210/54 -42°
DLN	used from 599 nm out; 99 nm from the line			L/V -3°	170/16 -6°	180/21 -18°	190/27 -30°	210/63 -33°	210/62 -36°	210/51 -42°
BIL	used from 649 nm out; 65 nm from the line		L/V	250/11 -1°	240/20 -2°	230/28 -15°	220/28 -28°	220/53 -34°	220/55 -39°	220/63 -44°

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
FAT Fresno, CA	departure	VFR Sky: a broken layer at 10,000 feet	from the southeast (130°) at 8 knots	10+ mi	10,000 ft	335 ft	7:53 am PDT (14:53 UTC)
MMH Mammoth Lakes, CA	70 nm out, 4 nm southwest of the line	VFR Sky: a few clouds at 3,700 feet, a broken layer at 6,000 feet, overcast at 7,000 feet	from the west (270°) at 5 knots	10+ mi	6,000 ft	7,134 ft	14:55 UTC
TMT Austin, NV	200 nm out, 13 nm northwest of the line	VFR Sky: a broken layer at 3,200 feet, overcast at 4,200 feet Weather: light rain	calm	7 mi	3,200 ft	5,735 ft	14:35 UTC
LWL Wells, NV	340 nm out, 4 nm northeast of the line	no report just now				5,769 ft
BYI Burley, ID	439 nm out, 21 nm northwest of the line	marginal VFR Sky: scattered clouds at 900 feet, a broken layer at 1,200 feet, overcast at 2,600 feet Weather: light rain	from the west (260°) at 4 knots	10+ mi	1,200 ft	4,153 ft	14:53 UTC
PIH Pocatello, ID	489 nm out, 4 nm northeast of the line, tower	marginal VFR Sky: a broken layer at 1,700 feet, overcast at 7,500 feet	from the east (100°) at 4 knots	10+ mi	1,700 ft	4,451 ft	14:53 UTC
IDA Idaho Falls, ID	539 nm out, 8 nm west of the line, tower	IFR Sky: overcast at 900 feet Weather: light rain	from the south (190°) at 9 knots	10+ mi	900 ft	4,743 ft	14:53 UTC
RED Red Lodge, MT	689 nm out, 7 nm southeast of the line	no report just now				5,762 ft
BIL Billings, MT	destination	VFR Sky: a few clouds at 500 feet, a few clouds at 2,100 feet, scattered clouds at 3,700 feet	from the southwest (230°) at 3 knots	10+ mi	none	3,662 ft	8:53 am MDT (14:53 UTC)

The highest airport on this list sits at 7,134 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At BIL when you get there the forecast at the estimated arrival, 1:28 pm MDT (19:28 UTC)

Wind light and variable, visibility more than 6 miles, scattered clouds at 1,500 feet, overcast at 2,500 feet marginal VFR

The whole forecast for BIL

From Mon 6:00 am MDT (12:00 UTC): wind from the north-northwest at 8 knots, visibility more than 6 miles, light rain snow, a broken layer at 1,200 feet, overcast at 2,200 feet
From Mon 1:00 pm MDT (19:00 UTC): wind light and variable, visibility more than 6 miles, scattered clouds at 1,500 feet, overcast at 2,500 feet
From Mon 6:00 pm MDT (00:00 UTC): wind from the east at 9 knots, visibility 6 miles, light drizzle, mist, a few clouds at 300 feet, overcast at 1,800 feet
From Mon 10:00 pm MDT (04:00 UTC): wind from the east at 9 knots, visibility 4 miles, light drizzle, mist, scattered clouds at 300 feet, overcast at 1,200 feet
From Tue 3:00 am MDT (09:00 UTC): wind light and variable, visibility 3 miles, light rain, mist, scattered clouds at 300 feet, a broken layer at 1,200 feet and more above

The forecast for FAT, the departure

From Mon 5:00 am PDT (12:00 UTC): wind from the east-southeast at 13 knots, visibility more than 6 miles, a broken layer at 6,000 feet
From Mon 11:00 am PDT (18:00 UTC): wind from the south-southeast at 6 knots, visibility more than 6 miles, a broken layer at 10,000 feet

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

6/7094 45NM NE MERCED, CA, Sunday, October 4, 2026 through Tuesday, October 20, 2026 UTC 18 nm from the route, 40 nm along the route · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · until 20 October · ZOA

Daylight

Sunset at FAT 6:25 pm PDT (01:25 UTC), at BIL 6:32 pm MDT (00:32 UTC) (civil twilight ends 7:02 pm MDT (01:02 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 Pacific Southwest · loop National Weather Service

Radar now, the Pacific Northwest · loop National Weather Service

Radar now, the northern Rockies · 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: Fresno Yosemite International, Billings Logan International.