Tucson International to Boeing Fld/King County International TUS → BFI
1,061 nautical miles (1,221 statute miles) northwest on a straight line, true course 334°, about 325° magnetic at the departure end (variation 9E). At 120 knots that is 8 h 10 min at the quickest height in today's winds (39,000 ft, a 10-knot tailwind), arriving about 7:56 am PDT (14:56 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 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 W15W: thunderstorms (a convective SIGMET) up to 28,000 ft, moving from the southwest at 20 knots, until 12:55 am MST (07:55 UTC). Over the route from 466 to 535 nm out.
as issued
WSUS33 KKCI 120555 MKCW WST 120555 CONVECTIVE SIGMET 15W VALID UNTIL 0755Z UT NV FROM 60WNW BVL-10NE BVL-80E OAL-40SE OAL-20W OAL-60WNW BVL AREA TS MOV FROM 24020KT. TOPS TO FL280.
- AIRMET TANGO 2W: moderate turbulence above 18,000 ft from 35,000 ft to 45,000 ft. Over the route from 89 to 258 nm out.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 109 to 863 nm out.
- AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 159 to 486 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 248 to 278 nm out.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 258 to 605 nm out.
- AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the route from 644 to 664 nm out.
- AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the last 297 nm of the route.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 813 to 912 nm out.
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 TUS.
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 02:00–09:00 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 10 forecast points nearest it (TUS, PHX, PRC, LAS, ELY, BAM, BOI, RDM, 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 | 190° at 3 kt | −2 kt | 6 °C | 122 kt | 8 h 42 min | 8:28 am PDT (15:28 UTC) |
| 6,500 ft | 190° at 3 kt | −3 kt | 4 °C | 123 kt | 8 h 38 min | 8:24 am PDT (15:24 UTC) |
| 8,500 ft | 210° at 8 kt | −5 kt | 1 °C | 125 kt | 8 h 29 min | 8:15 am PDT (15:15 UTC) |
| 10,500 ft | 210° at 9 kt | −5 kt | -2 °C | 125 kt | 8 h 29 min | 8:15 am PDT (15:15 UTC) |
| 12,500 ft | 220° at 12 kt | −5 kt | -6 °C | 125 kt | 8 h 29 min | 8:15 am PDT (15:15 UTC) |
| 14,500 ft | 220° at 16 kt | −6 kt | -9 °C | 126 kt | 8 h 25 min | 8:11 am PDT (15:11 UTC) |
| 16,500 ft | 220° at 21 kt | −7 kt | -12 °C | 127 kt | 8 h 21 min | 8:07 am PDT (15:07 UTC) |
| 18,000 ft FL180 | 220° at 24 kt | −8 kt | -15 °C | 128 kt | 8 h 17 min | 8:03 am PDT (15:03 UTC) |
| 24,000 ft FL240 | 230° at 27 kt | −6 kt | -24 °C | 126 kt | 8 h 25 min | 8:11 am PDT (15:11 UTC) |
| 30,000 ft FL300 | 240° at 37 kt | −5 kt | -31 °C | 125 kt | 8 h 29 min | 8:15 am PDT (15:15 UTC) |
| 34,000 ft FL340 | 230° at 44 kt | −8 kt | -36 °C | 128 kt | 8 h 17 min | 8:03 am PDT (15:03 UTC) |
| 39,000 ft FL390 | 230° at 45 kt | −10 kt | -43 °C | 130 kt | 8 h 10 min | 7:56 am PDT (14:56 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| TUS | used from 0 nm out; 25 nm from the line | 210/13 13° | 200/35 9° | 210/40 5° | 220/50 -7° | 220/59 -18° | 230/79 -26° | 230/84 -35° | 230/84 -48° | |
| PHX | used from 50 nm out; 24 nm from the line | 150/5 | 200/21 12° | 200/27 6° | 200/35 3° | 220/58 -8° | 220/69 -19° | 220/87 -26° | 230/93 -35° | 230/79 -47° |
| PRC | used from 149 nm out; 4 nm from the line | 210/25 5° | 200/30 1° | 220/55 -10° | 220/61 -21° | 220/84 -28° | 230/90 -34° | 230/73 -45° | ||
| LAS | used from 248 nm out; 85 nm from the line | 210/21 10° | 200/18 5° | 200/23 -2° | 210/49 -14° | 210/63 -21° | 220/58 -30° | 220/61 -35° | 210/56 -44° | |
| ELY | used from 397 nm out; 56 nm from the line | 200/39 3° | 210/27 -2° | 210/45 -15° | 220/56 -24° | 210/60 -28° | 210/63 -34° | 220/61 -43° | ||
| BAM | used from 545 nm out; 22 nm from the line | 310/7 0° | 270/19 -7° | 200/38 -17° | 190/49 -28° | 220/69 -29° | 220/63 -33° | 230/48 -41° | ||
| BOI | used from 694 nm out; 96 nm from the line | 300/7 2° | 280/5 -4° | 210/16 -9° | 210/60 -20° | 210/75 -29° | 210/63 -32° | 220/64 -32° | 220/54 -39° | |
| RDM | used from 793 nm out; 84 nm from the line | 040/17 -1° | 030/31 -8° | 010/29 -12° | 010/61 -19° | 360/95 -25° | 360/82 -36° | 360/40 -37° | 310/19 -40° | |
| YKM | used from 892 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° |
| SEA | used from 991 nm out; 41 nm from the line | 050/7 | 050/11 1° | 050/12 -5° | 030/31 -7° | 010/61 -15° | 010/69 -26° | 360/73 -40° | 360/62 -47° | 330/21 -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 |
|---|---|---|---|---|---|---|---|
| TUS Tucson, AZ | departure | no report just now | 2,643 ft | ||||
| IWA Phoenix, AZ | 79 nm out, 1 nm west of the line, tower | no report just now | 1,384 ft | ||||
| PRC Prescott, AZ | 169 nm out, 2 nm northeast of the line, tower | no report just now | 5,045 ft | ||||
| SGU St George, UT | 317 nm out, 20 nm northeast of the line | no report just now | 2,883 ft | ||||
| BAM Battle Mountain, NV | 585 nm out, 17 nm southwest of the line | no report just now | 4,536 ft | ||||
| REO Rome, OR | 714 nm out, 5 nm southeast of the line | no report just now | 4,053 ft | ||||
| BNO Burns, OR | 783 nm out, 7 nm west of the line | no report just now | 4,148 ft | ||||
| DLS The Dalles, OR | 942 nm out, 23 nm southwest of the line | no report just now | 246 ft | ||||
| PLU Puyallup, WA | 1041 nm out, 14 nm southwest of the line | no report just now | 537 ft | ||||
| BFI Seattle, WA | destination | no report just now | 21 ft |
The highest airport on this list sits at 5,045 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, 7:56 am PDT (14:56 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 TUS 5:55 pm MST (00:55 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: Tucson International, Boeing Fld/King County International.