Jacksonville International to Seattle-Tacoma International JAX → SEA
2,120 nautical miles (2,439 statute miles) northwest on a straight line, true course 310°, about 316° magnetic at the departure end (variation 6W). At 120 knots that is 17 h 58 min at the quickest height in today's winds (4,500 ft, a 2-knot headwind), arriving about 1:08 pm PDT (20:08 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: 8 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
- SIGMET 8W: thunderstorms (a convective SIGMET) up to 35,000 ft, moving from the southwest at 40 knots, until 11:55 pm EDT (03:55 UTC). Over the route from 1310 to 1490 nm out.
as issued
WSUS33 KKCI 120155 MKCW WST 120155 CONVECTIVE SIGMET 8W VALID UNTIL 0355Z CO MT WY FROM 40N SHR-60WNW RAP-20ENE CYS-30SW CYS-10NW BOY-40N SHR AREA TS MOV FROM 22040KT. TOPS TO FL350.
- AIRMET TANGO 6W: moderate turbulence above 18,000 ft from 28,000 ft to 40,000 ft. Over the route from 210 to 250 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 810 to 1040 nm out.
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the route from 1230 to 1840 nm out.
- AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 1310 to 1630 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 1380 to 1520 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 1420 to 1800 nm out.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 1420 to 1930 nm out.
- AIRMET ZULU 3C: moderate icing up to 22,000 ft. Over the route from 1440 to 1640 nm out.
- AIRMET ZULU 2C: moderate icing up to 16,000 ft. Over the route from 1700 to 2020 nm out.
- AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the last 140 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 JAX.
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 20:00–03:00 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 17 forecast points nearest it (JAX, CSG, BHM, HSV, MEM, CGI, SGF, MKC, SLN, GRI, BFF, LND, BIL, DLN, LWS, YKM, SEA). 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 | 240° at 6 kt | +2 kt | 19 °C | 118 kt | 17 h 58 min | 1:08 pm PDT (20:08 UTC) |
| 6,500 ft | 270° at 7 kt | +6 kt | 12 °C | 114 kt | 18 h 36 min | 1:46 pm PDT (20:46 UTC) |
| 8,500 ft | 260° at 9 kt | +6 kt | 8 °C | 114 kt | 18 h 36 min | 1:46 pm PDT (20:46 UTC) |
| 10,500 ft | 260° at 11 kt | +9 kt | 5 °C | 111 kt | 19 h 06 min | 2:16 pm PDT (21:16 UTC) |
| 12,500 ft | 260° at 13 kt | +11 kt | 2 °C | 109 kt | 19 h 27 min | 2:37 pm PDT (21:37 UTC) |
| 14,500 ft | 260° at 15 kt | +12 kt | -2 °C | 108 kt | 19 h 38 min | 2:48 pm PDT (21:48 UTC) |
| 16,500 ft | 260° at 17 kt | +13 kt | -7 °C | 107 kt | 19 h 49 min | 2:59 pm PDT (21:59 UTC) |
| 18,000 ft FL180 | 260° at 18 kt | +13 kt | -10 °C | 107 kt | 19 h 49 min | 2:59 pm PDT (21:59 UTC) |
| 24,000 ft FL240 | 250° at 23 kt | +17 kt | -20 °C | 103 kt | 20 h 35 min | 3:45 pm PDT (22:45 UTC) |
| 30,000 ft FL300 | 250° at 29 kt | +20 kt | -34 °C | 100 kt | 21 h 12 min | 4:22 pm PDT (23:22 UTC) |
| 34,000 ft FL340 | 260° at 36 kt | +28 kt | -40 °C | 92 kt | 23 h 03 min | 6:13 pm PDT (01:13 UTC) |
| 39,000 ft FL390 | 260° at 40 kt | +33 kt | -48 °C | 87 kt | 24 h 22 min | 7:32 pm PDT (02:32 UTC) |
Based on data from the 11th at 18:00 UTC; valid on the 12th at 00:00 UTC for use 20:00 to 03:00 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| JAX | used from 0 nm out; 25 nm from the line | 280/14 | 300/22 16° | 260/27 15° | 260/26 9° | 240/41 -6° | 230/38 -16° | 220/44 -32° | 200/49 -41° | 200/52 -53° |
| CSG | used from 100 nm out; 82 nm from the line | 300/20 | 330/41 15° | 320/42 11° | 320/41 7° | 300/33 -6° | 290/33 -18° | 270/32 -34° | 260/31 -41° | 260/24 -51° |
| BHM | used from 250 nm out; 45 nm from the line | 300/16 | 330/32 16° | 320/37 11° | 330/37 6° | 310/33 -7° | 310/30 -18° | 320/40 -34° | 330/43 -41° | 330/30 -49° |
| HSV | used from 350 nm out; 36 nm from the line | 290/15 | 330/34 16° | 330/38 11° | 330/40 5° | 320/36 -7° | 320/31 -18° | 320/44 -34° | 330/53 -41° | 330/34 -48° |
| MEM | used from 450 nm out; 49 nm from the line | 240/9 | 280/14 17° | 280/20 12° | 290/25 5° | 320/25 -6° | 330/31 -18° | 320/52 -32° | 330/58 -41° | 320/42 -50° |
| CGI | used from 550 nm out; 76 nm from the line | 250/10 | 290/12 17° | 290/18 11° | 300/22 5° | 320/25 -8° | 330/30 -18° | 320/53 -33° | 320/66 -42° | 320/56 -50° |
| SGF | used from 600 nm out; 89 nm from the line | 210/21 | 210/21 16° | 240/28 12° | 260/24 7° | 280/21 -6° | 280/26 -18° | 290/38 -31° | 290/37 -41° | 300/49 -52° |
| MKC | used from 750 nm out; 55 nm from the line | 200/28 | 220/30 16° | 270/20 11° | 280/22 7° | 260/27 -6° | 270/27 -18° | 280/38 -32° | 270/38 -40° | 280/50 -52° |
| SLN | used from 900 nm out; 60 nm from the line | 190/37 | 220/39 20° | 240/31 14° | 250/24 7° | 260/25 -7° | 250/26 -17° | 250/44 -31° | 260/47 -40° | 260/47 -50° |
| GRI | used from 950 nm out; 60 nm from the line | 210/31 19° | 240/21 14° | 240/17 6° | 260/27 -7° | 260/34 -18° | 240/45 -32° | 250/56 -40° | 260/62 -51° | |
| BFF | used from 1150 nm out; 87 nm from the line | 120/24 | 180/31 13° | 210/26 7° | 230/25 -7° | 240/41 -20° | 230/52 -36° | 250/56 -41° | 260/57 -45° | |
| LND | used from 1400 nm out; 99 nm from the line | 180/33 10° | 190/50 3° | 210/59 -9° | 200/50 -21° | 190/41 -34° | 230/55 -39° | 240/65 -47° | ||
| BIL | used from 1550 nm out; 94 nm from the line | 080/24 | 130/14 -1° | 180/33 0° | 210/43 -10° | 220/58 -21° | 200/55 -36° | 220/75 -44° | 240/83 -48° | |
| DLN | used from 1600 nm out; 70 nm from the line | 080/10 -3° | 180/8 -3° | 180/23 -14° | 200/58 -22° | 200/80 -36° | 220/85 -41° | 230/81 -45° | ||
| LWS | used from 1800 nm out; 68 nm from the line | 010/5 | 050/14 -2° | 040/12 -6° | 160/7 -10° | 190/30 -22° | 200/54 -27° | 200/48 -35° | 210/40 -37° | 230/32 -41° |
| YKM | used from 1950 nm out; 70 nm from the line | 030/16 | 020/18 0° | 030/30 -8° | 030/23 -13° | 020/40 -23° | 010/73 -29° | 010/54 -36° | 360/29 -37° | 330/16 -40° |
| SEA | used from 2050 nm out; 45 nm from the line | 360/9 | 350/10 1° | 010/10 -5° | 030/20 -11° | 020/60 -17° | 010/86 -26° | 360/90 -40° | 010/68 -42° | 360/31 -43° |
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 |
|---|---|---|---|---|---|---|---|
| JAX Jacksonville, FL | departure | no report just now | 29 ft | ||||
| CSG Columbus, GA | 210 nm out, 13 nm south of the line, tower | no report just now | 397 ft | ||||
| BHM Birmingham, AL | 320 nm out, 20 nm southwest of the line, tower | no report just now | 650 ft | ||||
| MKL Jackson, TN | 480 nm out, 15 nm northeast of the line, tower | no report just now | 434 ft | ||||
| IXD Olathe, KS | 820 nm out, 11 nm northeast of the line, tower | no report just now | 1,087 ft | ||||
| FOE Topeka, KS | 850 nm out, 5 nm west of the line, tower | no report just now | 1,077 ft | ||||
| AIA Alliance, NE | 1230 nm out, 5 nm southwest of the line | no report just now | 3,930 ft | ||||
| LSK Lusk, WY | 1310 nm out, 3 nm northwest of the line | no report just now | 4,966 ft | ||||
| DLN Dillon, MT | 1690 nm out, 7 nm west of the line | no report just now | 5,244 ft | ||||
| LWS Lewiston, ID | 1890 nm out, 4 nm west of the line, tower | no report just now | 1,442 ft | ||||
| MWH Moses Lake, WA | 2000 nm out, 18 nm north of the line, tower | no report just now | 1,188 ft | ||||
| SEA Seattle, WA | destination | no report just now | 432 ft |
The highest airport on this list sits at 5,244 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At SEA when you get there the forecast at the estimated arrival, 1:08 pm PDT (20:08 UTC)
SEA has no terminal forecast; use the nearest airport that does.
Temporary flight restrictions on the line or within 25 nm of it
- 6/8389 Jacksonville, FL, Thursday, October 15, 2026 through Sunday, October 18, 2026 UTC 11 nm from the route, at the departure end · air shows/sports · starts Thursday 15 October · ZJX
- 6/6783 Perry, GA, Friday, October 9, 2026 through Monday, October 19, 2026 UTC 22 nm from the route, 160 nm along the route · drones kept away from a public gathering · until 19 October · ZTL
Daylight
Sunset at JAX 6:59 pm EDT (22:59 UTC), at SEA 6:27 pm PDT (01:27 UTC) (civil twilight ends 6:58 pm PDT (01:58 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: Jacksonville International, Seattle-Tacoma International.