Plan a flight · Mon 12:04 am PDT (07:04 UTC)

Portland International to Louisville Muhammad Ali International PDX → SDF

1,691 nautical miles (1,945 statute miles) east on a straight line, true course 092°, about 076° magnetic at the departure end (variation 16E). At 120 knots that is 10 h 26 min at the quickest height in today's winds (39,000 ft, a 42-knot tailwind), arriving about 1:30 pm EDT (17:30 UTC). Right now PDX is VFR, wind variable at 3 knots; SDF 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: 1,763 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 179 nm of the route.
AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 99 to 328 nm out.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 159 to 686 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 259 to 1004 nm out.
AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the route from 259 to 438 nm out.
AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 338 to 726 nm out.
AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 577 to 776 nm out.
AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 38,000 ft. Over the route from 597 to 835 nm out.
AIRMET TANGO 1W: 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 617 to 815 nm out.
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 945 to 1392 nm out.
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 89 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 PDX.

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

E75L at 1,500 ft, 47 nm north, 9:49 pm PDT (04:49 UTC): remarks: low-level wind shear loss of 8 knots on final. 149 nm along the route, 47 nm north of the line.
as filed, and in English
```
PSC UA /OV PSC120003/TM 0449/FL015/TP E75L/RM LLWS LOSS OF 8 KTS ON FINAL
```
Report
a routine report filed through PSC
Where
3 nm southeast (120°) of PSC
Time
04:49 UTC
Height
at 1,500 ft
Aircraft
E75L
Remarks
low-level wind shear loss of 8 knots on final
E75L descending, 16 nm north, 9:35 pm PDT (04:35 UTC): light turbulence from 11,000 ft to 14,000 ft, light rime icing from 8,000 ft to 12,000 ft, -10 °C. 149 nm along the route, 16 nm north of the line.
as filed, and in English
```
GEG UA /OV PDT/TM 0435/FLDURD/TP E75L/TA M10/TB LT TURB 140-110/IC LT RIME 120-080
```
Report
a routine report filed through GEG
Where
over PDT
Time
04:35 UTC
Height
during the descent
Aircraft
E75L
Temperature
−10 °C
Turbulence
lt turbulence from 14,000 ft to 11,000 ft
Icing
lt rime from 12,000 ft to 8,000 ft

Winds aloft along the route, and the time en route the forecast for use 02:00–09:00 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 14 forecast points nearest it (PDX, YKM, LWS, DLN, BIL, LND, RAP, ONL, OMA, DSM, BRL, SPI, EVV, LOU). 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	230° at 15 kt	−7 kt		127 kt	13 h 19 min	4:23 pm EDT (20:23 UTC)
5,500 ft	220° at 13 kt	−5 kt	15 °C	125 kt	13 h 32 min	4:36 pm EDT (20:36 UTC)
7,500 ft	230° at 10 kt	−5 kt	7 °C	125 kt	13 h 32 min	4:36 pm EDT (20:36 UTC)
9,500 ft	240° at 10 kt	−6 kt	4 °C	126 kt	13 h 25 min	4:29 pm EDT (20:29 UTC)
11,500 ft	240° at 13 kt	−8 kt	2 °C	128 kt	13 h 13 min	4:17 pm EDT (20:17 UTC)
13,500 ft	240° at 15 kt	−9 kt	-2 °C	129 kt	13 h 07 min	4:11 pm EDT (20:11 UTC)
15,500 ft	240° at 16 kt	−11 kt	-6 °C	131 kt	12 h 55 min	3:59 pm EDT (19:59 UTC)
17,500 ft	240° at 17 kt	−12 kt	-11 °C	132 kt	12 h 49 min	3:53 pm EDT (19:53 UTC)
18,000 ft FL180	240° at 18 kt	−12 kt	-12 °C	132 kt	12 h 49 min	3:53 pm EDT (19:53 UTC)
24,000 ft FL240	240° at 23 kt	−16 kt	-22 °C	136 kt	12 h 26 min	3:30 pm EDT (19:30 UTC)
30,000 ft FL300	250° at 31 kt	−24 kt	-34 °C	144 kt	11 h 45 min	2:49 pm EDT (18:49 UTC)
34,000 ft FL340	260° at 41 kt	−37 kt	-39 °C	157 kt	10 h 46 min	1:50 pm EDT (17:50 UTC)
39,000 ft FL390	260° at 46 kt	−42 kt	-46 °C	162 kt	10 h 26 min	1:30 pm EDT (17:30 UTC)

Based on data from the 12th at 00:00 UTC; valid on the 12th at 06:00 UTC for use 02:00 to 09:00 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
PDX	used from 0 nm out; 25 nm from the line	L/V	030/7 1°	020/12 -6°	020/29 -9°	010/69 -16°	010/81 -25°	360/83 -40°	360/67 -46°	320/29 -42°
YKM	used from 50 nm out; 63 nm from the line	070/10	040/15 -1°	020/27 -8°	030/25 -13°	020/48 -20°	010/83 -27°	010/77 -37°	010/49 -40°	350/14 -41°
LWS	used from 149 nm out; 84 nm from the line	070/10	080/12 -2°	030/12 -6°	080/7 -10°	170/34 -21°	160/46 -32°	200/33 -35°	220/22 -35°	230/18 -38°
DLN	used from 298 nm out; 102 nm from the line			090/6 -6°	240/22 -4°	210/34 -16°	210/62 -25°	210/66 -34°	210/82 -36°	220/77 -42°
BIL	used from 547 nm out; 86 nm from the line		080/13	180/9 -2°	210/38 0°	220/51 -11°	210/46 -22°	210/58 -35°	230/73 -39°	230/72 -45°
LND	used from 597 nm out; 93 nm from the line			200/23 6°	220/31 1°	220/39 -11°	230/39 -23°	220/51 -28°	220/66 -37°	230/68 -45°
RAP	used from 696 nm out; 120 nm from the line		180/23 12°	200/38 13°	210/38 6°	220/28 -10°	230/34 -21°	230/37 -36°	250/52 -38°	250/59 -46°
ONL	used from 945 nm out; 76 nm from the line		210/31 20°	230/27 13°	230/18 7°	220/19 -8°	240/26 -20°	250/44 -35°	270/52 -39°	260/57 -47°
OMA	used from 1094 nm out; 70 nm from the line	220/47	240/33 19°	250/18 11°	230/17 6°	260/29 -8°	250/33 -19°	250/51 -33°	260/61 -40°	270/62 -49°
DSM	used from 1243 nm out; 32 nm from the line	230/40	250/33 17°	250/18 12°	240/17 5°	260/28 -8°	270/34 -19°	260/41 -33°	260/55 -41°	270/62 -51°
BRL	used from 1342 nm out; 46 nm from the line	230/24	240/29 15°	290/16 10°	280/15 4°	260/23 -7°	260/32 -19°	260/36 -33°	280/48 -41°	280/59 -52°
SPI	used from 1442 nm out; 18 nm from the line	220/21	250/23 16°	260/27 9°	270/14 6°	270/23 -7°	270/31 -19°	270/28 -33°	290/48 -42°	300/55 -52°
EVV	used from 1541 nm out; 69 nm from the line	280/15	290/12 17°	310/16 10°	320/13 5°	310/22 -6°	320/26 -18°	320/38 -33°	310/56 -41°	320/55 -51°
LOU	used from 1641 nm out; 27 nm from the line	310/18	340/28 16°	340/29 10°	350/27 3°	330/27 -7°	340/39 -19°	330/58 -33°	330/67 -41°	330/40 -49°

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
PDX Portland, OR	departure	VFR	variable at 3 knots	10+ mi	none	30 ft	11:53 pm PDT (06:53 UTC)
PDT Pendleton, OR	159 nm out, 16 nm north of the line, tower	VFR Sky: overcast at 6,500 feet	from the south (180°) at 3 knots	10+ mi	6,500 ft	1,494 ft	06:53 UTC
JSY Joseph, OR	229 nm out, 4 nm northwest of the line	VFR	from the south-southwest (210°) at 4 knots	10+ mi	none	4,126 ft	14:30 UTC
WYS West Yellowstone, MT	487 nm out, 2 nm southeast of the line	low IFR Sky: overcast at 400 feet Weather: mist	calm	3 mi	400 ft	6,649 ft	06:50 UTC
COD Cody, WY	577 nm out, 6 nm northeast of the line	IFR Sky: a broken layer at 600 feet, overcast at 1,500 feet	from the north-northeast (030°) at 9 knots	10+ mi	600 ft	5,102 ft	06:56 UTC
HSR Hot Springs, SD	835 nm out, 6 nm southwest of the line	no report just now				3,150 ft
RBE Bassett, NE	1004 nm out, 2 nm southeast of the line	no report just now				2,349 ft
OMA Omaha, NE	1183 nm out, 19 nm south of the line, tower	VFR Sky: a few clouds at 25,000 feet	from the southeast (140°) at 9 knots	10+ mi	none	984 ft	06:52 UTC
AIO Atlantic, IA	1223 nm out, 4 nm northwest of the line	VFR	from the south (180°) at 7 knots	10+ mi	none	1,164 ft	06:55 UTC
SPI Springfield, IL	1482 nm out, 10 nm northeast of the line, tower	VFR	from the south (190°) at 6 knots	10+ mi	none	597 ft	06:52 UTC
FRH French Lick, IN	1641 nm out, 3 nm southeast of the line	marginal VFR	calm	5 mi	none	792 ft	06:55 UTC
SDF Louisville, KY	destination	marginal VFR Weather: mist	calm	5 mi	none	500 ft	2:56 am EDT (06:56 UTC)

The highest airport on this list sits at 6,649 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At SDF when you get there the forecast at the estimated arrival, 1:30 pm EDT (17:30 UTC)

Wind from the south-southwest at 6 knots, visibility more than 6 miles, scattered clouds at 25,000 feet VFR

The whole forecast for SDF

From Mon 2:00 am EDT (06:00 UTC): wind from the south at 3 knots, visibility more than 6 miles, clear skies
At times between Mon 5:00 am EDT (09:00 UTC) and 9:00 am EDT (13:00 UTC): visibility ½ mile, fog, clear skies
From Mon 10:00 am EDT (14:00 UTC): wind from the south-southwest at 6 knots, visibility more than 6 miles, scattered clouds at 25,000 feet
From Mon 8:00 pm EDT (00:00 UTC): wind from the south at 3 knots, visibility more than 6 miles, clear skies

The forecast for PDX, the departure

From Sun 11:00 pm PDT (06:00 UTC): wind light and variable, visibility more than 6 miles, clear skies
From Mon 3:00 pm PDT (22:00 UTC): wind from the west-northwest at 5 knots, visibility more than 6 miles, clear skies

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 PDX 6:28 pm PDT (01:28 UTC), at SDF 7:09 pm EDT (23:09 UTC) (civil twilight ends 7:36 pm EDT (23:36 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 Northwest · loop National Weather Service

Radar now, the northern Rockies · 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: Portland International, Louisville Muhammad Ali International.