Plan a flight · Mon 10:19 am CDT (15:19 UTC)

Okc Will Rogers International to Billings Logan International OKC → BIL

798 nautical miles (919 statute miles) northwest on a straight line, true course 325°, about 321° magnetic at the departure end (variation 4E). At 120 knots that is 6 h 46 min at the quickest height in today's winds (18,000 ft, a 2-knot headwind), arriving about 4:05 pm MDT (22:05 UTC). Right now OKC is VFR, wind from the south (190°) at 16 knots, gusting to 27; 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: 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

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, 120 nm along the route.
AIRMET TANGO 3W: 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 449 to 539 nm out.
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 319 nm of the route.
AIRMET TANGO 4W: moderate turbulence above 18,000 ft (due to mountain wave) from 34,000 ft to 43,000 ft. Near the route, 519 nm along the route.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the last 100 nm of 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 OKC.

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

BE20 at 16,000 ft, 43 nm southwest, 8:38 am CDT (13:38 UTC): light turbulence, light rime icing, -2 °C, remarks: zkcfdc xj. 160 nm along the route, 43 nm southwest of the line.
as filed, and in English
```
LBL UA /OV LBL070035/TM 1338/FL160/TP BE20/TA M02/TB LGT/IC LGT RIME/RM /ZKCFDC XJ
```
Report
a routine report filed through LBL
Where
35 nm east (070°) of LBL
Time
13:38 UTC
Height
at 16,000 ft
Aircraft
BE20
Temperature
−2 °C
Turbulence
light
Icing
light rime
Remarks
zkcfdc xj
C56X at 6,000 ft, 8 nm northeast, 9:37 am CDT (14:37 UTC): clear from 6,000 ft to 60,000 ft, remarks: ZDVWC-19. 379 nm along the route, 8 nm northeast of the line.
as filed, and in English
```
HEQ UA /OV HEQ/TM 1437/FL060/TP C56X/SK SKC/RM -ZDVWC-19
```
Report
a routine report filed through HEQ
Where
over HEQ
Time
14:37 UTC
Height
at 6,000 ft
Aircraft
C56X
Sky
clear
Remarks
ZDVWC-19
BE20 at 8,000 ft, 44 nm northeast, 8:15 am CDT (13:15 UTC): no turbulence, no icing, remarks: durd-zdvwc 31. 469 nm along the route, 44 nm northeast of the line.
as filed, and in English
```
AIA UA /OV KAIA/TM 1315/FL080/TP BE20/SK TOP 045 BASE 002/TB NEG/IC NEG/RM DURD-ZDVWC- 31
```
Report
a routine report filed through AIA
Where
over KAIA
Time
13:15 UTC
Height
at 8,000 ft
Aircraft
BE20
Sky
top 4,500 ft base 200 ft
Turbulence
none
Icing
none
Remarks
durd-zdvwc 31
E175L at 10,000 ft, 46 nm southwest, 9:05 am CDT (14:05 UTC): overcast from 10,500 ft to 11,500 ft. 599 nm along the route, 46 nm southwest of the line.
as filed, and in English
```
CPR UA /OV CPR110010/TM 1405/FL100/TP E175L/SK OVC105-TOP115
```
Report
a routine report filed through CPR
Where
10 nm east (110°) of CPR
Time
14:05 UTC
Height
at 10,000 ft
Aircraft
E175L
Sky
overcast from 10,500 ft, tops 11,500 ft
C25A at 5,000 ft, 3 nm west, 8:00 am CDT (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 westbound cruising heights for this course (VFR: even thousands plus 500 ft; above 18,000 ft the forecast levels), with the wind averaged along the line from the 7 forecast points nearest it (OKC, GAG, GCK, GLD, BFF, RAP, 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
4,500 ft	260° at 14 kt	+5 kt	18 °C	115 kt	6 h 56 min	4:15 pm MDT (22:15 UTC)
6,500 ft	260° at 15 kt	+6 kt	17 °C	114 kt	7 h	4:19 pm MDT (22:19 UTC)
8,500 ft	250° at 20 kt	+7 kt	14 °C	113 kt	7 h 04 min	4:23 pm MDT (22:23 UTC)
10,500 ft	250° at 25 kt	+6 kt	6 °C	114 kt	7 h	4:19 pm MDT (22:19 UTC)
12,500 ft	240° at 29 kt	+6 kt	3 °C	114 kt	7 h	4:19 pm MDT (22:19 UTC)
14,500 ft	240° at 31 kt	+4 kt	-2 °C	116 kt	6 h 53 min	4:12 pm MDT (22:12 UTC)
16,500 ft	240° at 33 kt	+3 kt	-7 °C	117 kt	6 h 49 min	4:08 pm MDT (22:08 UTC)
18,000 ft FL180	230° at 35 kt	+2 kt	-10 °C	118 kt	6 h 46 min	4:05 pm MDT (22:05 UTC)
24,000 ft FL240	240° at 45 kt	+5 kt	-22 °C	115 kt	6 h 56 min	4:15 pm MDT (22:15 UTC)
30,000 ft FL300	240° at 67 kt	+12 kt	-31 °C	108 kt	7 h 23 min	4:42 pm MDT (22:42 UTC)
34,000 ft FL340	240° at 72 kt	+12 kt	-37 °C	108 kt	7 h 23 min	4:42 pm MDT (22:42 UTC)
39,000 ft FL390	240° at 71 kt	+15 kt	-46 °C	105 kt	7 h 36 min	4:55 pm MDT (22:55 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
OKC	used from 0 nm out; 25 nm from the line	200/23	220/26 19°	210/12 16°	230/16 8°	250/36 -6°	250/45 -17°	260/61 -28°	270/51 -37°	270/42 -49°
GAG	used from 50 nm out; 62 nm from the line		230/27 21°	230/27 15°	230/26 8°	240/41 -7°	250/54 -19°	250/72 -27°	260/70 -37°	260/64 -49°
GCK	used from 150 nm out; 49 nm from the line		250/23 20°	230/35 13°	240/47 7°	240/42 -7°	250/43 -20°	240/81 -28°	250/87 -37°	250/83 -49°
GLD	used from 249 nm out; 37 nm from the line		240/22	250/24 13°	250/39 6°	230/42 -8°	230/55 -21°	240/87 -30°	240/96 -36°	250/93 -48°
BFF	used from 399 nm out; 56 nm from the line		310/15	280/27 8°	250/27 2°	230/30 -12°	240/52 -22°	250/66 -32°	240/78 -37°	240/76 -43°
RAP	used from 599 nm out; 123 nm from the line		310/18 6°	270/15 6°	260/20 2°	240/28 -11°	240/42 -23°	240/47 -35°	230/47 -36°	240/56 -44°
BIL	used from 649 nm out; 125 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
OKC Oklahoma City, OK	departure	VFR	from the south (190°) at 16 knots, gusting to 27	10+ mi	none	1,295 ft	9:52 am CDT (14:52 UTC)
RQO El Reno, OK	20 nm out, 14 nm southwest of the line	VFR	from the south-southwest (200°) at 21 knots, gusting to 26	10+ mi	none	1,420 ft	14:55 UTC
AVK Alva, OK	100 nm out, 6 nm east of the line	VFR	from the south-southwest (210°) at 22 knots, gusting to 29	10+ mi	none	1,476 ft	15:15 UTC
DDC Dodge City, KS	180 nm out, 9 nm west of the line	VFR	from the southwest (230°) at 13 knots, gusting to 22	8 mi	none	2,595 ft	14:52 UTC
OEL Oakley, KS	269 nm out, 7 nm northeast of the line	VFR	from the west-southwest (250°) at 15 knots, gusting to 20	10+ mi	none	3,045 ft	14:55 UTC
SYF St Francis, KS	329 nm out, 5 nm southwest of the line	VFR	from the west (280°) at 4 knots	10+ mi	none	3,429 ft	14:55 UTC
SNY Sidney, NE	429 nm out, 3 nm east of the line	VFR	from the south (190°) at 9 knots, gusting to 17	10+ mi	none	4,314 ft	19:53 UTC
GUR Guernsey, WY	529 nm out, 15 nm southwest of the line, tower	VFR	from the east-southeast (110°) at 4 knots	10+ mi	none	4,401 ft	14:55 UTC
DGW Douglas, WY	569 nm out, 17 nm southwest of the line	VFR Sky: a few clouds at 11,000 feet	from the north-northeast (020°) at 16 knots, gusting to 22	10+ mi	none	4,932 ft	14:53 UTC
BYG Buffalo, WY	679 nm out, 5 nm northwest of the line	low IFR Sky: overcast at 400 feet	from the north-northwest (330°) at 16 knots, gusting to 23	10+ mi	400 ft	4,970 ft	14:53 UTC
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 4,970 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, 4:05 pm MDT (22:05 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 OKC, the departure

From Mon 7:00 am CDT (12:00 UTC): wind from the south at 11 knots, visibility more than 6 miles, low-level wind shear, clear skies
From Mon 9:00 am CDT (14:00 UTC): wind from the south-southwest at 17 knots, gusting to 27, visibility more than 6 miles, scattered clouds at 25,000 feet
From Mon 8:00 pm CDT (01:00 UTC): wind from the south at 12 knots, visibility more than 6 miles, scattered clouds at 25,000 feet

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

No temporary flight restriction on or near this route right now.

Daylight

Sunset at OKC 6:59 pm CDT (23:59 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 southern Plains · 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: Okc Will Rogers International, Billings Logan International.