Ontario International to Louisville Muhammad Ali International ONT → SDF
1,557 nautical miles (1,792 statute miles) east on a straight line, true course 072°, about 060° magnetic at the departure end (variation 12E). At 120 knots that is 8 h 12 min at the quickest height in today's winds (34,000 ft, a 70-knot tailwind), arriving about 1:14 pm EDT (17:14 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: 3,255 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 SIERRA 2E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the first 30 nm of the route.
- AIRMET TANGO 1W: moderate turbulence below 18,000 ft (due to mountain wave) up to 12,000 ft. Over the route from 20 to 459 nm out.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 200 to 339 nm out.
- AIRMET SIERRA 2E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the route from 260 to 319 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 270 to 719 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 339 to 479 nm out.
- AIRMET TANGO 2W: moderate turbulence below 18,000 ft (due to mountain wave) up to 22,000 ft. Over the route from 469 to 649 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 599 to 1248 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, fog). Over the last 80 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 ONT.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
Not fetched just now.
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 14 forecast points nearest it (ONT, BLH, PRC, FMN, ALS, PUB, GCK, ICT, MKC, SGF, COU, STL, 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 | 240° at 27 kt | −26 kt | 146 kt | 10 h 40 min | 3:42 pm EDT (19:42 UTC) | |
| 5,500 ft | 240° at 24 kt | −23 kt | 22 °C | 143 kt | 10 h 53 min | 3:55 pm EDT (19:55 UTC) |
| 7,500 ft | 230° at 23 kt | −20 kt | 11 °C | 140 kt | 11 h 07 min | 4:09 pm EDT (20:09 UTC) |
| 9,500 ft | 230° at 23 kt | −20 kt | 8 °C | 140 kt | 11 h 07 min | 4:09 pm EDT (20:09 UTC) |
| 11,500 ft | 230° at 26 kt | −23 kt | 4 °C | 143 kt | 10 h 53 min | 3:55 pm EDT (19:55 UTC) |
| 13,500 ft | 230° at 29 kt | −27 kt | 1 °C | 147 kt | 10 h 36 min | 3:38 pm EDT (19:38 UTC) |
| 15,500 ft | 230° at 33 kt | −31 kt | -3 °C | 151 kt | 10 h 19 min | 3:21 pm EDT (19:21 UTC) |
| 17,500 ft | 230° at 37 kt | −35 kt | -7 °C | 155 kt | 10 h 03 min | 3:05 pm EDT (19:05 UTC) |
| 18,000 ft FL180 | 240° at 38 kt | −35 kt | -8 °C | 155 kt | 10 h 03 min | 3:05 pm EDT (19:05 UTC) |
| 24,000 ft FL240 | 240° at 48 kt | −45 kt | -20 °C | 165 kt | 9 h 26 min | 2:28 pm EDT (18:28 UTC) |
| 30,000 ft FL300 | 240° at 66 kt | −66 kt | -30 °C | 186 kt | 8 h 22 min | 1:24 pm EDT (17:24 UTC) |
| 34,000 ft FL340 | 250° at 69 kt | −70 kt | -37 °C | 190 kt | 8 h 12 min | 1:14 pm EDT (17:14 UTC) |
| 39,000 ft FL390 | 250° at 60 kt | −62 kt | -48 °C | 182 kt | 8 h 33 min | 1:35 pm EDT (17:35 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| ONT | used from 0 nm out; 25 nm from the line | 250/11 | 200/20 4° | 210/27 3° | 220/26 -4° | 240/32 -13° | 220/52 -21° | 220/67 -30° | 220/72 -37° | 220/65 -46° |
| BLH | used from 100 nm out; 69 nm from the line | 240/19 | 210/20 10° | 200/27 4° | 210/34 -2° | 220/59 -10° | 220/67 -20° | 220/75 -29° | 230/78 -38° | 220/90 -47° |
| PRC | used from 200 nm out; 51 nm from the line | 200/37 6° | 200/35 0° | 220/60 -11° | 220/71 -20° | 220/88 -29° | 220/98 -35° | 220/94 -45° | ||
| FMN | used from 349 nm out; 115 nm from the line | 220/16 6° | 220/39 1° | 220/50 -10° | 230/67 -23° | 230/94 -29° | 230/102 -35° | 230/90 -46° | ||
| ALS | used from 549 nm out; 56 nm from the line | 240/35 3° | 230/54 -9° | 240/66 -19° | 230/85 -26° | 240/87 -34° | 240/70 -47° | |||
| PUB | used from 699 nm out; 97 nm from the line | 260/45 11° | 240/38 6° | 230/47 -8° | 230/51 -19° | 240/74 -29° | 240/82 -35° | 250/72 -48° | ||
| GCK | used from 749 nm out; 84 nm from the line | 240/40 22° | 240/40 14° | 240/38 7° | 230/39 -7° | 230/45 -20° | 250/73 -28° | 260/74 -36° | 260/64 -49° | |
| ICT | used from 898 nm out; 79 nm from the line | 230/45 | 240/33 21° | 230/23 14° | 230/22 7° | 240/29 -7° | 240/36 -20° | 260/78 -29° | 270/69 -36° | 270/56 -49° |
| MKC | used from 1098 nm out; 75 nm from the line | 240/49 | 240/21 20° | 220/19 13° | 230/21 6° | 260/26 -7° | 250/37 -19° | 270/66 -31° | 270/65 -38° | 280/60 -48° |
| SGF | used from 1148 nm out; 49 nm from the line | 230/37 | 260/20 15° | 250/16 13° | 250/15 8° | 260/28 -7° | 250/31 -17° | 280/59 -31° | 280/59 -39° | 290/55 -50° |
| COU | used from 1248 nm out; 49 nm from the line | 250/36 | 260/14 16° | 250/5 12° | 260/12 6° | 260/24 -7° | 260/35 -19° | 280/58 -31° | 280/62 -40° | 290/60 -49° |
| STL | used from 1298 nm out; 41 nm from the line | 250/26 | 240/21 15° | 240/22 11° | 250/23 6° | 270/28 -7° | 260/30 -19° | 280/52 -31° | 280/57 -40° | 300/57 -49° |
| EVV | used from 1398 nm out; 51 nm from the line | 270/25 | 290/17 15° | 260/10 8° | 270/16 5° | 280/29 -6° | 280/33 -19° | 290/38 -33° | 300/53 -41° | 310/54 -51° |
| LOU | used from 1497 nm out; 38 nm from the line | 300/16 | 310/19 15° | 310/17 9° | 300/15 4° | 300/26 -6° | 280/34 -19° | 290/30 -34° | 310/49 -42° | 310/58 -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 |
|---|---|---|---|---|---|---|---|
| ONT Ontario, CA | departure | no report just now | 944 ft | ||||
| SBD San Bernardino, CA | 20 nm out, 4 nm south of the line, tower | no report just now | 1,159 ft | ||||
| IFP Bullhead City, AZ | 160 nm out, 18 nm north of the line, tower | no report just now | 707 ft | ||||
| RQE Window Rock, AZ | 429 nm out, 24 nm south of the line | no report just now | 6,742 ft | ||||
| SKX Taos, NM | 599 nm out, 13 nm southeast of the line | no report just now | 7,094 ft | ||||
| RTN Raton, NM | 659 nm out, 6 nm southeast of the line | no report just now | 6,352 ft | ||||
| HQG Hugoton, KS | 809 nm out, 8 nm southeast of the line | no report just now | 3,134 ft | ||||
| BEC Wichita, KS | 1018 nm out, 5 nm southwest of the line, tower | no report just now | 1,408 ft | ||||
| OZS Camdenton, MO | 1228 nm out, 4 nm south of the line | no report just now | 1,061 ft | ||||
| TBN Fort Leonard Wood, MO | 1258 nm out, 20 nm south of the line, tower | no report just now | 1,159 ft | ||||
| EVV Evansville, IN | 1477 nm out, 10 nm southwest of the line, tower | no report just now | 421 ft | ||||
| SDF Louisville, KY | destination | no report just now | 500 ft |
The highest airport on this list sits at 7,094 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, 1:14 pm EDT (17:14 UTC)
SDF has no terminal forecast; use the nearest airport that does.
Temporary flight restrictions on the line or within 25 nm of it
- 4/3635 DISNEYLAND THEME PARK, ANAHEIM,, CA 19 nm from the route, at the departure end · security · ZLA
- 6/8891 Bullhead City, AZ, Wednesday, October 14, 2026 Local 8 nm from the route, 160 nm along the route · a VIP movement · starts Wednesday 14 October · ZLA
Daylight
Sunset at ONT 6:18 pm PDT (01:18 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
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: Ontario International, Louisville Muhammad Ali International.