Boeing Fld/King County International to Laredo International BFI → LRD
1,607 nautical miles (1,850 statute miles) southeast on a straight line, true course 130°, about 115° magnetic at the departure end (variation 15E). At 120 knots that is 12 h 33 min at the quickest height in today's winds (34,000 ft, a 8-knot tailwind), arriving about 1:26 pm CDT (18:26 UTC). Right now BFI is VFR, wind calm; LRD is VFR, wind from the east-southeast (110°) at 14 knots. 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 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 7C: thunderstorms (a convective SIGMET) up to 34,000 ft, moving from the southwest at 40 knots, until 11:55 pm PDT (06:55 UTC). Near the route, 938 nm along the route.
as issued
WSUS32 KKCI 120455 MKCC WST 120455 CONVECTIVE SIGMET 7C VALID UNTIL 0655Z TX OK CO NM FROM 40NNW PUB-70WSW LBL-40NE CME-40ESE RSK-30ENE HBU-40NNW PUB AREA TS MOV FROM 22040KT. TOPS TO FL340.
- SIGMET 9C: thunderstorms (a convective SIGMET) up to 30,000 ft, moving from the southwest at 30 knots, until 11:55 pm PDT (06:55 UTC). Over the route from 1128 to 1188 nm out.
as issued
WSUS32 KKCI 120455 MKCC WST 120455 CONVECTIVE SIGMET 9C VALID UNTIL 0655Z TX NM FROM 50NNW CME-40ENE CME-50SE ELP-20WSW ELP-30E TCS-50NNW CME AREA TS MOV FROM 22030KT. TOPS TO FL300.
- AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the first 220 nm of the route.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 130 to 270 nm out.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 190 to 858 nm out.
- AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the route from 309 to 459 nm out.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 389 to 759 nm out.
- AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 589 to 1118 nm out.
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 38,000 ft. Over the route from 639 to 849 nm out.
- AIRMET TANGO 2W: moderate turbulence above 18,000 ft from 35,000 ft to 45,000 ft. Over the route from 858 to 1048 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 BFI.
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 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 13 forecast points nearest it (SEA, YKM, LWS, BOI, PIH, SLC, GJT, FMN, ABQ, ROW, INK, DRT, LRD). A plus sign is a headwind, a minus sign a tailwind.
| Height | Average wind | Head- or tailwind | Temperature | Ground speed | Time en route | Arrival |
|---|---|---|---|---|---|---|
| 5,500 ft | 180° at 10 kt | +9 kt | 10 °C | 111 kt | 14 h 29 min | 3:22 pm CDT (20:22 UTC) |
| 7,500 ft | 210° at 13 kt | +6 kt | 7 °C | 114 kt | 14 h 06 min | 2:59 pm CDT (19:59 UTC) |
| 9,500 ft | 220° at 13 kt | +3 kt | 5 °C | 117 kt | 13 h 44 min | 2:37 pm CDT (19:37 UTC) |
| 11,500 ft | 220° at 16 kt | +3 kt | 1 °C | 117 kt | 13 h 44 min | 2:37 pm CDT (19:37 UTC) |
| 13,500 ft | 220° at 20 kt | +4 kt | -3 °C | 116 kt | 13 h 51 min | 2:44 pm CDT (19:44 UTC) |
| 15,500 ft | 220° at 23 kt | +4 kt | -7 °C | 116 kt | 13 h 51 min | 2:44 pm CDT (19:44 UTC) |
| 17,500 ft | 220° at 27 kt | +4 kt | -10 °C | 116 kt | 13 h 51 min | 2:44 pm CDT (19:44 UTC) |
| 18,000 ft FL180 | 220° at 28 kt | +4 kt | -11 °C | 116 kt | 13 h 51 min | 2:44 pm CDT (19:44 UTC) |
| 24,000 ft FL240 | 220° at 34 kt | +5 kt | -21 °C | 115 kt | 13 h 58 min | 2:51 pm CDT (19:51 UTC) |
| 30,000 ft FL300 | 230° at 41 kt | −1 kt | -30 °C | 121 kt | 13 h 17 min | 2:10 pm CDT (19:10 UTC) |
| 34,000 ft FL340 | 240° at 44 kt | −8 kt | -36 °C | 128 kt | 12 h 33 min | 1:26 pm CDT (18:26 UTC) |
| 39,000 ft FL390 | 240° at 39 kt | −7 kt | -45 °C | 127 kt | 12 h 39 min | 1:32 pm CDT (18:32 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| SEA | used from 0 nm out; 22 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° |
| YKM | used from 50 nm out; 18 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 200 nm out; 95 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° |
| BOI | used from 250 nm out; 75 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° | |
| PIH | used from 449 nm out; 84 nm from the line | L/V | 240/13 1° | 240/15 -3° | 210/42 -15° | 200/70 -25° | 220/74 -29° | 220/71 -36° | 220/62 -43° | |
| SLC | used from 499 nm out; 78 nm from the line | 200/5 | 230/8 2° | 220/20 -2° | 210/40 -12° | 190/53 -25° | 210/62 -30° | 220/69 -34° | 220/64 -43° | |
| GJT | used from 699 nm out; 89 nm from the line | 210/43 7° | 230/45 1° | 220/49 -12° | 220/62 -22° | 220/59 -28° | 230/60 -33° | 220/55 -45° | ||
| FMN | used from 799 nm out; 76 nm from the line | 220/28 9° | 220/40 2° | 220/53 -10° | 220/62 -22° | 230/79 -28° | 240/91 -34° | 230/71 -45° | ||
| ABQ | used from 948 nm out; 57 nm from the line | 220/27 11° | 210/35 5° | 220/46 -9° | 230/62 -20° | 240/78 -25° | 240/80 -35° | 240/56 -47° | ||
| ROW | used from 1098 nm out; 51 nm from the line | 190/33 | 210/27 14° | 220/28 6° | 230/36 -6° | 230/56 -15° | 230/63 -27° | 250/59 -37° | 260/57 -49° | |
| INK | used from 1248 nm out; 15 nm from the line | 190/23 20° | 200/18 15° | 230/18 8° | 240/23 -4° | 240/37 -14° | 240/46 -27° | 250/42 -38° | 260/36 -50° | |
| DRT | used from 1398 nm out; 50 nm from the line | 160/31 | 170/28 16° | 200/14 16° | 210/15 9° | 210/15 -4° | 240/12 -12° | 240/18 -28° | 300/11 -38° | 320/18 -50° |
| LRD | used from 1547 nm out; 35 nm from the line | 150/27 | 170/24 17° | 170/20 14° | 180/12 10° | 230/19 -4° | 160/10 -14° | 130/10 -28° | 110/7 -39° | 010/22 -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 |
|---|---|---|---|---|---|---|---|
| BFI Seattle, WA | departure | VFR | calm | 10+ mi | none | 21 ft | 9:53 pm PDT (04:53 UTC) |
| YKM Yakima, WA | 90 nm out, 4 nm east of the line, tower | VFR Sky: overcast at 9,500 feet | from the west-southwest (240°) at 5 knots | 10+ mi | 9,500 ft | 1,098 ft | 04:53 UTC |
| PDT Pendleton, OR | 180 nm out, 12 nm northeast of the line, tower | VFR Sky: overcast at 5,500 feet | from the north-northeast (030°) at 4 knots | 10+ mi | 5,500 ft | 1,494 ft | 04:53 UTC |
| TWF Twin Falls, ID | 449 nm out, 4 nm northeast of the line, tower | VFR Sky: scattered clouds at 4,200 feet, overcast at 5,000 feet | from the west-southwest (250°) at 8 knots | 10+ mi | 5,000 ft | 4,153 ft | 04:53 UTC |
| PVU Provo, UT | 629 nm out, 5 nm southeast of the line, tower | VFR Sky: a broken layer at 6,500 feet, a broken layer at 8,000 feet, overcast at 9,500 feet Weather: light rain | from the east-southeast (120°) at 7 knots | 10+ mi | 6,500 ft | 4,496 ft | 04:56 UTC |
| CNY Moab, UT | 759 nm out, 11 nm northeast of the line | VFR | from the south (190°) at 13 knots, gusting to 20 | 10+ mi | none | 4,579 ft | 04:53 UTC |
| FMN Farmington, NM | 898 nm out, 13 nm southwest of the line, tower | VFR | from the south-southwest (210°) at 8 knots | 10+ mi | none | 5,506 ft | 04:53 UTC |
| ABQ Albuquerque, NM | 1028 nm out, 18 nm southwest of the line, tower | VFR Sky: a few clouds at 10,000 feet | from the south (170°) at 4 knots | 10+ mi | none | 5,354 ft | 04:52 UTC |
| ROW Roswell, NM | 1178 nm out, 5 nm west of the line, tower | VFR Sky: a broken layer at 8,500 feet | from the south-southwest (210°) at 12 knots | 10+ mi | 8,500 ft | 3,671 ft | 04:51 UTC |
| INK Wink, TX | 1288 nm out, 6 nm southwest of the line | reported, no category | from the south-southeast (150°) at 14 knots | none | 2,821 ft | 04:53 UTC | |
| DRT Del Rio, TX | 1477 nm out, 5 nm north of the line | VFR Sky: overcast at 6,000 feet | from the east-southeast (120°) at 9 knots | 10+ mi | 6,000 ft | 1,002 ft | 04:53 UTC |
| LRD Laredo, TX | destination | VFR Sky: a few clouds at 4,500 feet | from the east-southeast (110°) at 14 knots | 10+ mi | none | 508 ft | 11:56 pm CDT (04:56 UTC) |
The highest airport on this list sits at 5,506 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At LRD when you get there the forecast at the estimated arrival, 1:26 pm CDT (18:26 UTC)
Wind from the south-southeast at 16 knots, gusting to 23, visibility more than 6 miles, scattered clouds at 6,000 feet VFR
The whole forecast for LRD
- From Mon 1:00 am CDT (06:00 UTC): wind from the south-southeast at 12 knots, visibility more than 6 miles, a few clouds at 5,000 feet, a broken layer at 10,000 feet
- From Mon 3:00 am CDT (08:00 UTC): wind from the southeast at 10 knots, visibility more than 6 miles, a few clouds at 2,000 feet, overcast at 10,000 feet
- At times between Mon 7:00 am CDT (12:00 UTC) and 10:00 am CDT (15:00 UTC): a broken layer at 2,500 feet
- From Mon 10:00 am CDT (15:00 UTC): wind from the south-southeast at 16 knots, gusting to 23, visibility more than 6 miles, scattered clouds at 6,000 feet
The forecast for BFI, the departure
- From Sun 11:00 pm PDT (06:00 UTC): wind calm, visibility more than 6 miles, clear skies
- From Mon 3:00 am PDT (10:00 UTC): wind calm, visibility more than 6 miles, patches of fog, clear skies
- From Mon 9:00 am PDT (16:00 UTC): wind from the south-southeast at 3 knots, visibility more than 6 miles, clear skies
- From Mon 12:00 pm PDT (19:00 UTC): wind from the west-southwest at 3 knots, visibility more than 6 miles, clear skies
- From Mon 2:00 pm PDT (21:00 UTC): wind from the west at 5 knots, visibility more than 6 miles, clear skies
- From Mon 7:00 pm PDT (02:00 UTC): wind calm, visibility more than 6 miles, clear skies
Temporary flight restrictions on the line or within 25 nm of it
- 6/8722 ALAMOGORDO, NM, Tuesday, October 13, 2026 Local 15 nm from the route, 1118 nm along the route · security · starts tomorrow · ZAB
Daylight
Sunset at BFI 6:27 pm PDT (01:27 UTC), at LRD 7:11 pm CDT (00:11 UTC) (civil twilight ends 7:34 pm CDT (00:34 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: Boeing Fld/King County International, Laredo International.
