Fort Lauderdale/Hollywood International to Boeing Fld/King County International FLL → BFI
2,360 nautical miles (2,715 statute miles) northwest on a straight line, true course 314°, about 320° magnetic at the departure end (variation 6W). At 120 knots that is 19 h 50 min at the quickest height in today's winds (4,500 ft, a 1-knot headwind), arriving about 2:30 pm PDT (21:30 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: 9 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 3W: thunderstorms (a convective SIGMET) up to 31,000 ft, moving from the southwest at 40 knots, until 10:55 pm EDT (02:55 UTC). Over the route from 1580 to 1740 nm out.
as issued
WSUS33 KKCI 120055 MKCW WST 120055 CONVECTIVE SIGMET 3W VALID UNTIL 0255Z MT WY FROM 10WSW MLS-70E DDY-20N LAR-50E BPI-30NE BIL-10WSW MLS AREA TS MOV FROM 22040KT. TOPS TO FL310.
- AIRMET TANGO 6W: moderate turbulence above 18,000 ft from 28,000 ft to 40,000 ft. Over the route from 300 to 470 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 1070 to 1350 nm out.
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the route from 1450 to 2080 nm out.
- AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 1480 to 1860 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 1580 to 1800 nm out.
- AIRMET ZULU 3C: moderate icing up to 22,000 ft. Over the route from 1670 to 1940 nm out.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 1670 to 2170 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 1720 to 2030 nm out.
- AIRMET ZULU 2C: moderate icing up to 16,000 ft. Over the route from 1950 to 2260 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 FLL.
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 20 forecast points nearest it (MIA, MLB, PIE, TLH, MGM, JAN, MEM, LIT, FSM, SGF, TUL, ICT, SLN, GLD, BFF, LND, 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 | 230° at 6 kt | +1 kt | 119 kt | 19 h 50 min | 2:30 pm PDT (21:30 UTC) | |
| 6,500 ft | 260° at 7 kt | +4 kt | 13 °C | 116 kt | 20 h 21 min | 3:01 pm PDT (22:01 UTC) |
| 8,500 ft | 230° at 9 kt | +3 kt | 8 °C | 117 kt | 20 h 10 min | 2:50 pm PDT (21:50 UTC) |
| 10,500 ft | 240° at 12 kt | +5 kt | 6 °C | 115 kt | 20 h 31 min | 3:11 pm PDT (22:11 UTC) |
| 12,500 ft | 240° at 14 kt | +7 kt | 2 °C | 113 kt | 20 h 53 min | 3:33 pm PDT (22:33 UTC) |
| 14,500 ft | 250° at 15 kt | +8 kt | -2 °C | 112 kt | 21 h 04 min | 3:44 pm PDT (22:44 UTC) |
| 16,500 ft | 250° at 17 kt | +9 kt | -6 °C | 111 kt | 21 h 16 min | 3:56 pm PDT (22:56 UTC) |
| 18,000 ft FL180 | 250° at 18 kt | +10 kt | -9 °C | 110 kt | 21 h 27 min | 4:07 pm PDT (23:07 UTC) |
| 24,000 ft FL240 | 240° at 22 kt | +11 kt | -19 °C | 109 kt | 21 h 39 min | 4:19 pm PDT (23:19 UTC) |
| 30,000 ft FL300 | 240° at 28 kt | +14 kt | -33 °C | 106 kt | 22 h 16 min | 4:56 pm PDT (23:56 UTC) |
| 34,000 ft FL340 | 250° at 35 kt | +21 kt | -40 °C | 99 kt | 23 h 50 min | 6:30 pm PDT (01:30 UTC) |
| 39,000 ft FL390 | 260° at 37 kt | +26 kt | -48 °C | 94 kt | 25 h 06 min | 7:46 pm PDT (02:46 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| MIA | used from 0 nm out; 36 nm from the line | 190/8 | L/V 18° | 180/5 14° | L/V 9° | 190/10 -5° | 160/10 -16° | 150/13 -30° | 160/26 -40° | 150/23 -52° |
| MLB | used from 50 nm out; 75 nm from the line | 240/7 | 240/11 17° | 240/13 13° | 250/15 8° | 230/25 -5° | 210/25 -16° | 210/24 -31° | 190/29 -41° | 190/27 -53° |
| PIE | used from 100 nm out; 51 nm from the line | 310/7 | 270/12 17° | 270/14 13° | 260/14 8° | 240/22 -5° | 230/24 -16° | 220/26 -31° | 200/31 -41° | 180/33 -53° |
| TLH | used from 250 nm out; 74 nm from the line | 300/17 | 340/32 17° | 320/27 13° | 300/27 8° | 280/23 -7° | 250/37 -17° | 230/44 -33° | 220/53 -41° | 220/48 -51° |
| MGM | used from 400 nm out; 86 nm from the line | 300/16 | 330/30 16° | 330/34 11° | 320/31 7° | 310/28 -7° | 320/29 -17° | 290/25 -34° | 300/28 -41° | 320/28 -50° |
| JAN | used from 550 nm out; 93 nm from the line | 260/6 | 310/14 17° | 280/13 12° | 290/19 6° | 310/22 -5° | 310/28 -17° | 320/44 -32° | 330/48 -41° | 320/52 -51° |
| MEM | used from 700 nm out; 62 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° |
| LIT | used from 750 nm out; 43 nm from the line | 220/12 | 250/12 17° | 250/18 12° | 260/22 6° | 310/14 -5° | 310/25 -17° | 310/40 -31° | 310/38 -41° | 310/46 -52° |
| FSM | used from 900 nm out; 59 nm from the line | 200/18 | 210/19 15° | 230/22 13° | 250/18 7° | 270/20 -5° | 280/24 -16° | 280/35 -30° | 290/37 -40° | 300/40 -52° |
| SGF | used from 950 nm out; 67 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° |
| TUL | used from 1000 nm out; 63 nm from the line | 200/27 | 210/28 15° | 240/24 13° | 250/19 8° | 250/28 -6° | 260/25 -16° | 270/34 -30° | 280/41 -39° | 280/41 -52° |
| ICT | used from 1050 nm out; 55 nm from the line | 190/34 | 210/34 18° | 240/28 13° | 260/23 7° | 250/23 -6° | 240/29 -17° | 260/40 -30° | 260/47 -40° | 270/42 -51° |
| SLN | used from 1150 nm out; 19 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° |
| GLD | used from 1250 nm out; 89 nm from the line | 190/29 | 200/30 15° | 240/23 8° | 250/39 -7° | 230/39 -19° | 230/57 -31° | 240/67 -39° | 250/62 -49° | |
| BFF | used from 1400 nm out; 75 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 1600 nm out; 104 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° | ||
| DLN | used from 1850 nm out; 63 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 2050 nm out; 58 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 2200 nm out; 58 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 2300 nm out; 34 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 |
|---|---|---|---|---|---|---|---|
| FLL Fort Lauderdale, FL | departure | no report just now | 65 ft | ||||
| TPA Tampa, FL | 170 nm out, 6 nm southwest of the line, tower | no report just now | 26 ft | ||||
| ECP Panama City, FL | 390 nm out, 16 nm southwest of the line, tower | no report just now | 68 ft | ||||
| GWO Greenwood, MS | 680 nm out, 15 nm southwest of the line, tower | no report just now | 162 ft | ||||
| ROG Rogers, AR | 940 nm out, 5 nm northwest of the line, tower | no report just now | 1,358 ft | ||||
| XNA Fayetteville/Springdale/Rogers, AR | 950 nm out, 11 nm southwest of the line, tower | no report just now | 1,288 ft | ||||
| RCP Stockton, KS | 1250 nm out, 2 nm northeast of the line | no report just now | 1,999 ft | ||||
| CPR Casper, WY | 1640 nm out, 15 nm northeast of the line, tower | no report just now | 5,344 ft | ||||
| HSG Thermopolis, WY | 1730 nm out, 17 nm north of the line | no report just now | 4,891 ft | ||||
| GIC Grangeville, ID | 2090 nm out, 2 nm south of the line | no report just now | 3,313 ft | ||||
| LWS Lewiston, ID | 2130 nm out, 9 nm north of the line, tower | no report just now | 1,442 ft | ||||
| BFI Seattle, WA | destination | no report just now | 21 ft |
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 BFI when you get there the forecast at the estimated arrival, 2:30 pm PDT (21:30 UTC)
BFI has no terminal forecast; use the nearest airport that does.
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 FLL 6:55 pm EDT (22:55 UTC), at BFI 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: Fort Lauderdale/Hollywood International, Boeing Fld/King County International.
