Plan a flight · Mon 10:48 am EDT (14:48 UTC)

Raleigh-Durham International to Boise Air Trml/Gowen Field RDU → BOI

1,773 nautical miles (2,040 statute miles) northwest on a straight line, true course 297°, about 306° magnetic at the departure end (variation 9W). At 120 knots that is 16 h 34 min at the quickest height in today's winds (4,500 ft, a 13-knot headwind), arriving about 1:22 am MDT (07:22 UTC), after sunset at the destination. Right now RDU is VFR, wind from the northwest (310°) at 7 knots; BOI is VFR, wind from the northwest (310°) at 4 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 3W: moderate turbulence below 18,000 ft (due to mountain wave) up to 6,000 ft. Over the route from 50 to 149 nm out.
AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, mist). Over the route from 100 to 249 nm out.
AIRMET SIERRA 1E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, mist). Over the route from 110 to 319 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 747 to 896 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 route from 986 to 1703 nm out.
AIRMET TANGO 4W: moderate turbulence above 18,000 ft (due to mountain wave) from 34,000 ft to 43,000 ft. Over the route from 1255 to 1345 nm out.
AIRMET TANGO 2W: moderate turbulence below 18,000 ft (due to mountain wave) up to 22,000 ft. Near the route, 1305 nm along the route.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 1365 to 1733 nm out.
AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the last 379 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 RDU.

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

B739 at 33,000 ft, 17 nm south, 9:00 am EDT (13:00 UTC): light turbulence, remarks: ztlfd 33. At the departure end, 17 nm south of the line.
as filed, and in English
```
ATL UA /OV GSO/TM 1300/FL330/TP B739/TB LGT/RM ZTLFD 33
```
Report
a routine report filed through ATL
Where
over GSO
Time
13:00 UTC
Height
at 33,000 ft
Aircraft
B739
Turbulence
light
Remarks
ztlfd 33
E145 at 4,000 ft, 36 nm northeast, 8:06 am EDT (12:06 UTC): a broken layer above 4,000 ft, remarks: during the descent 20SW roa bases 4,000 ft. 80 nm along the route, 36 nm northeast of the line.
as filed, and in English
```
ROA UA /OV ROA170020/TM 1206/FL040/TP E145/SK BKN040/RM DURD 20SW ROA BASES 040
```
Report
a routine report filed through ROA
Where
20 nm south (170°) of ROA
Time
12:06 UTC
Height
at 4,000 ft
Aircraft
E145
Sky
a broken layer from 4,000 ft
Remarks
during the descent 20SW roa bases 4,000 ft
A321 at 30,000 ft, 48 nm south, 7:55 am EDT (11:55 UTC): light turbulence, remarks: ztlfd 43. 120 nm along the route, 48 nm south of the line.
as filed, and in English
```
ATL UA /OV BZM330010/TM 1155/FL300/TP A321/TB LGT/RM ZTLFD 43
```
Report
a routine report filed through ATL
Where
10 nm northwest (330°) of BZM
Time
11:55 UTC
Height
at 30,000 ft
Aircraft
A321
Turbulence
light
Remarks
ztlfd 43
C56X at 18,000 ft, 46 nm southwest, 9:01 am EDT (13:01 UTC): no turbulence, clear from 18,000 ft to 60,000 ft. 259 nm along the route, 46 nm southwest of the line.
as filed, and in English
```
LOZ UA /OV LOZ/TM 1301/FL180/TP C56X/SK SKC/TB NEG
```
Report
a routine report filed through LOZ
Where
over LOZ
Time
13:01 UTC
Height
at 18,000 ft
Aircraft
C56X
Sky
clear
Turbulence
none
SR22 climbing, 4 nm south, 10:30 am EDT (14:30 UTC): a routine report with nothing remarked on. 309 nm along the route, 4 nm south of the line.
as filed, and in English
```
LEX UA /OV LEX180003/TM 1430/FLDURC/TP SR22/SK TOPS 017
```
Report
a routine report filed through LEX
Where
3 nm south (180°) of LEX
Time
14:30 UTC
Height
during the climb
Aircraft
SR22
Sky
tops 1,700 ft
E170 at 26,000 ft, 25 nm north, 10:17 am EDT (14:17 UTC): no turbulence. 309 nm along the route, 25 nm north of the line.
as filed, and in English
```
IND UA /OV FLM220015/TM 1417/FL260/TP E170/TB NEG
```
Report
a routine report filed through IND
Where
15 nm southwest (220°) of FLM
Time
14:17 UTC
Height
at 26,000 ft
Aircraft
E170
Turbulence
none
BE58 climbing, 2 nm northeast, 10:08 am EDT (14:08 UTC): overcast above 500 ft. 309 nm along the route, 2 nm northeast of the line.
as filed, and in English
```
LEX UA /OV LEX045002/TM 1408/FLDURC/TP BE58/SK OVC 005
```
Report
a routine report filed through LEX
Where
2 nm northeast (045°) of LEX
Time
14:08 UTC
Height
during the climb
Aircraft
BE58
Sky
overcast from 500 ft
BE30 climbing, 3 nm south, 9:40 am EDT (13:40 UTC): a routine report with nothing remarked on. 309 nm along the route, 3 nm south of the line.
as filed, and in English
```
LEX UA /OV LEX180002/TM 1340/FLDURC/TP BE30/SK TOPS 013
```
Report
a routine report filed through LEX
Where
2 nm south (180°) of LEX
Time
13:40 UTC
Height
during the climb
Aircraft
BE30
Sky
tops 1,300 ft
E55P climbing, 1 nm southwest, 8:22 am EDT (12:22 UTC): a routine report with nothing remarked on. 309 nm along the route, 1 nm southwest of the line.
as filed, and in English
```
LEX UA /OV LEX270002/TM 1222/FLDURC/TP E55P/SK VV002 TOPS 018
```
Report
a routine report filed through LEX
Where
2 nm west (270°) of LEX
Time
12:22 UTC
Height
during the climb
Aircraft
E55P
Sky
sky obscured from 200 ft, tops 1,800 ft
A319 climbing, 3 nm northeast, 7:55 am EDT (11:55 UTC): a routine report with nothing remarked on. 309 nm along the route, 3 nm northeast of the line.
as filed, and in English
```
LEX UA /OV LEX045003/TM 1155/FLDURC/TP A319/SK TOPS 020
```
Report
a routine report filed through LEX
Where
3 nm northeast (045°) of LEX
Time
11:55 UTC
Height
during the climb
Aircraft
A319
Sky
tops 2,000 ft
B739 at 17,000 ft, 5 nm east, 10:13 am EDT (14:13 UTC): remarks: clear and smooth. 329 nm along the route, 5 nm east of the line.
as filed, and in English
```
LEX UA /OV FFT/TM 1413/FL170/TP B739/RM CLEAR AND SMOOTH
```
Report
a routine report filed through LEX
Where
over FFT
Time
14:13 UTC
Height
at 17,000 ft
Aircraft
B739
Remarks
clear and smooth
AC90 at 28,000 ft, 15 nm northeast, 8:17 am EDT (12:17 UTC): light chop turbulence, no icing. 359 nm along the route, 15 nm northeast of the line.
as filed, and in English
```
SDF UA /OV IIU010030/TM 1217/FL280/TP AC90/TB OCNL LGT CHOP/IC NEG
```
Report
a routine report filed through SDF
Where
30 nm north (010°) of IIU
Time
12:17 UTC
Height
at 28,000 ft
Aircraft
AC90
Turbulence
occasional light chop
Icing
none
EMBRAER at 400 ft, 44 nm north, 9:37 am EDT (13:37 UTC): haze, remarks: ils runway 23 ceiling at 400 ft. 388 nm along the route, 44 nm north of the line.
as filed, and in English
```
BAK UA /OV KBAK/TM 1337/FL004/TP EMBRAER/WX HZ/RM ILS RWY 23 CEILING 004
```
Report
a routine report filed through BAK
Where
over KBAK
Time
13:37 UTC
Height
at 400 ft
Aircraft
EMBRAER
Weather
haze
Remarks
ils runway 23 ceiling at 400 ft
G280 at 200 ft, 44 nm north, 9:10 am EDT (13:10 UTC): fog, remarks: ils runway 23 runway environment aquired at at 20,000 ft feet above ground. 388 nm along the route, 44 nm north of the line.
as filed, and in English
```
BAK UA /OV KBAK/TM 1310/FL002/TP G280/WX FG/RM ILS RWY 23 RUNWAY ENVIRONMENT AQUIRED AT 200 FEET AGL
```
Report
a routine report filed through BAK
Where
over KBAK
Time
13:10 UTC
Height
at 200 ft
Aircraft
G280
Weather
fog
Remarks
ils runway 23 runway environment aquired at at 20,000 ft feet above ground

9 more routine reports are on the map.

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 16 forecast points nearest it (RDU, ROA, TRI, CVG, LOU, EVV, SPI, BRL, DSM, OMA, GRI, ONL, BFF, LND, PIH, BOI). 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	270° at 14 kt	+13 kt	13 °C	107 kt	16 h 34 min	1:22 am MDT (07:22 UTC)
6,500 ft	270° at 15 kt	+14 kt	15 °C	106 kt	16 h 44 min	1:32 am MDT (07:32 UTC)
8,500 ft	260° at 17 kt	+15 kt	10 °C	105 kt	16 h 53 min	1:41 am MDT (07:41 UTC)
10,500 ft	250° at 20 kt	+17 kt	5 °C	103 kt	17 h 13 min	2:01 am MDT (08:01 UTC)
12,500 ft	250° at 22 kt	+19 kt	2 °C	101 kt	17 h 33 min	2:21 am MDT (08:21 UTC)
14,500 ft	250° at 25 kt	+21 kt	-3 °C	99 kt	17 h 55 min	2:43 am MDT (08:43 UTC)
16,500 ft	240° at 27 kt	+22 kt	-7 °C	98 kt	18 h 06 min	2:54 am MDT (08:54 UTC)
18,000 ft FL180	240° at 29 kt	+23 kt	-10 °C	97 kt	18 h 17 min	3:05 am MDT (09:05 UTC)
24,000 ft FL240	240° at 37 kt	+30 kt	-22 °C	90 kt	19 h 42 min	4:30 am MDT (10:30 UTC)
30,000 ft FL300	260° at 49 kt	+46 kt	-32 °C	74 kt	23 h 58 min	8:46 am MDT (14:46 UTC)
34,000 ft FL340	260° at 54 kt	+52 kt	-38 °C	68 kt	26 h 04 min	10:52 am MDT (16:52 UTC)
39,000 ft FL390	260° at 47 kt	+47 kt	-46 °C	73 kt	24 h 17 min	9:05 am MDT (15:05 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
RDU	used from 0 nm out; 25 nm from the line	340/12	330/17 14°	320/20 10°	330/25 6°	340/34 -6°	340/38 -19°	330/37 -32°	330/35 -42°	310/36 -51°
ROA	used from 50 nm out; 55 nm from the line	310/18	350/22 15°	350/21 9°	340/24 6°	320/31 -6°	310/34 -19°	310/39 -35°	310/46 -42°	310/33 -49°
TRI	used from 149 nm out; 43 nm from the line		340/26 15°	330/23 10°	330/23 6°	290/28 -6°	290/32 -19°	290/36 -34°	310/47 -41°	320/47 -49°
CVG	used from 249 nm out; 81 nm from the line	260/20	280/18 15°	270/19 8°	290/30 5°	280/31 -7°	290/37 -19°	280/46 -35°	290/55 -40°	310/57 -48°
LOU	used from 299 nm out; 36 nm from the line	260/17	270/15 15°	260/19 10°	280/27 5°	280/30 -7°	280/29 -18°	280/44 -34°	290/56 -39°	310/56 -48°
EVV	used from 398 nm out; 54 nm from the line	270/15	250/15 14°	260/24 11°	270/28 6°	280/30 -7°	280/34 -18°	290/48 -33°	290/59 -38°	300/56 -48°
SPI	used from 498 nm out; 47 nm from the line	230/24	240/21 15°	260/11 12°	280/19 6°	270/23 -8°	280/34 -20°	290/55 -33°	290/62 -37°	290/55 -47°
BRL	used from 598 nm out; 52 nm from the line	240/28	240/25 18°	250/26 12°	260/29 5°	260/24 -8°	270/36 -20°	280/57 -33°	290/65 -37°	290/54 -46°
DSM	used from 697 nm out; 72 nm from the line	230/34	230/32 20°	220/33 12°	240/35 5°	250/39 -7°	250/43 -21°	280/61 -31°	280/73 -37°	280/67 -47°
OMA	used from 797 nm out; 44 nm from the line	210/23	240/34 20°	230/40 14°	220/43 7°	240/38 -8°	250/47 -21°	270/70 -29°	270/79 -36°	270/68 -48°
GRI	used from 946 nm out; 39 nm from the line		270/26 19°	230/33 13°	230/39 8°	230/43 -9°	240/55 -21°	250/76 -28°	260/84 -36°	260/68 -47°
ONL	used from 996 nm out; 48 nm from the line		270/16 17°	250/25 13°	230/34 7°	230/46 -9°	240/57 -22°	250/72 -31°	250/87 -36°	250/75 -46°
BFF	used from 1096 nm out; 96 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°
LND	used from 1345 nm out; 75 nm from the line			220/16 3°	230/26 -1°	210/30 -14°	220/57 -26°	220/60 -31°	220/62 -38°	220/52 -44°
PIH	used from 1544 nm out; 53 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°
BOI	used from 1693 nm out; 55 nm from the line		360/9 1°	L/V -5°	180/10 -12°	200/58 -21°	180/62 -31°	200/41 -31°	210/34 -32°	200/29 -41°

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
RDU Raleigh/Durham, NC	departure	VFR	from the northwest (310°) at 7 knots	10+ mi	none	435 ft	9:51 am EDT (13:51 UTC)
GSO Greensboro, NC	60 nm out, 13 nm south of the line, tower	VFR Sky: a few clouds at 25,000 feet	from the west-northwest (300°) at 11 knots	10+ mi	none	925 ft	13:54 UTC
LEX Lexington, KY	309 nm out, 1 nm southeast of the line, tower	low IFR Sky: overcast at 200 feet Weather: mist	from the south (190°) at 6 knots	4 mi	200 ft	979 ft	14:09 UTC
LOU Louisville, KY	359 nm out, 9 nm south of the line, tower	VFR	from the south (170°) at 4 knots	10+ mi	none	545 ft	13:53 UTC
SPI Springfield, IL	568 nm out, 14 nm north of the line, tower	VFR	from the south-southwest (200°) at 7 knots	10+ mi	none	597 ft	13:52 UTC
OMA Omaha, NE	867 nm out, 10 nm northeast of the line, tower	VFR Sky: scattered clouds at 12,000 feet, scattered clouds at 25,000 feet	from the south-southeast (160°) at 11 knots	10+ mi	none	984 ft	13:52 UTC
OLU Columbus, NE	926 nm out, 3 nm west of the line	VFR	from the south (190°) at 10 knots	10+ mi	none	1,447 ft	13:56 UTC
TIF Thedford, NE	1076 nm out, 5 nm southwest of the line	low IFR Sky: overcast at 300 feet	from the north-northwest (330°) at 7 knots	7 mi	300 ft	2,925 ft	14:35 UTC
CPR Casper, WY	1345 nm out, 2 nm north of the line, tower	IFR Sky: a broken layer at 600 feet, a broken layer at 4,900 feet	from the north (350°) at 9 knots	10+ mi	600 ft	5,344 ft	13:53 UTC
IDA Idaho Falls, ID	1594 nm out, 8 nm north of the line, tower	IFR Sky: overcast at 800 feet Weather: rain, mist	from the west-southwest (250°) at 6 knots	6 mi	800 ft	4,743 ft	13:53 UTC
SUN Hailey, ID	1693 nm out, 4 nm east of the line, tower	low IFR Sky: a broken layer at 400 feet, overcast at 900 feet Weather: light rain	from the southeast (130°) at 10 knots	4 mi	400 ft	5,319 ft	13:47 UTC
BOI Boise, ID	destination	VFR Sky: overcast at 9,500 feet	from the northwest (310°) at 4 knots	10+ mi	9,500 ft	2,871 ft	7:53 am MDT (13:53 UTC)

The highest airport on this list sits at 5,344 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At BOI when you get there the forecast at the estimated arrival, 1:22 am MDT (07:22 UTC)

Wind from the northwest at 10 knots, visibility more than 6 miles, a broken layer at 10,000 feet VFR

The whole forecast for BOI

From Mon 6:00 am MDT (12:00 UTC): wind from the west-northwest at 5 knots, visibility more than 6 miles, scattered clouds at 4,000 feet, a broken layer at 8,000 feet
From Mon 12:00 pm MDT (18:00 UTC): wind from the northwest at 10 knots, visibility more than 6 miles, a broken layer at 10,000 feet

The forecast for RDU, the departure

From Mon 8:00 am EDT (12:00 UTC): wind from the west-southwest at 10 knots, visibility more than 6 miles, a few clouds at 7,000 feet
From Mon 10:00 am EDT (14:00 UTC): wind from the northwest at 11 knots, gusting to 19, visibility more than 6 miles, scattered clouds at 3,000 feet, scattered clouds at 10,000 feet
At times between Mon 11:00 am EDT (15:00 UTC) and 1:00 pm EDT (17:00 UTC): wind from the northwest at 12 knots, gusting to 22, a broken layer at 3,000 feet
From Mon 5:30 pm EDT (21:30 UTC): wind from the northwest at 3 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 RDU 6:43 pm EDT (22:43 UTC), at BOI 7:05 pm MDT (01:05 UTC) (civil twilight ends 7:33 pm MDT (01:33 UTC)). At 120 knots the arrival at BOI is before sunrise there (7:56 am MDT (13:56 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 Southeast · loop National Weather Service

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

Radar now, the upper Mississippi valley · 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: Raleigh-Durham International, Boise Air Trml/Gowen Field.