Perot Fld/Fort Worth Alliance Airport to Seattle Paine Field International AFW → PAE
1,439 nautical miles (1,656 statute miles) northwest on a straight line, true course 316°, about 312° magnetic at the departure end (variation 4E). At 120 knots that is 12 h at the quickest height in today's winds (18,000 ft, no wind along the track), arriving about 1:39 pm PDT (20:39 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: 2 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 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 90 to 320 nm out.
- AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 400 to 829 nm out.
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 42,000 ft. Over the route from 430 to 789 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 480 to 709 nm out.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 600 to 1229 nm out.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 610 to 989 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 909 to 1149 nm out.
- AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the route from 999 to 1399 nm out.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 1169 to 1279 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 AFW.
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 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 14 forecast points nearest it (DAL, SPS, GAG, AMA, GCK, PUB, DEN, RKS, PIH, DLN, BOI, 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 10 kt | +2 kt | 17 °C | 118 kt | 12 h 12 min | 1:51 pm PDT (20:51 UTC) |
| 6,500 ft | 240° at 9 kt | +2 kt | 7 °C | 118 kt | 12 h 12 min | 1:51 pm PDT (20:51 UTC) |
| 8,500 ft | 250° at 13 kt | +6 kt | 5 °C | 114 kt | 12 h 37 min | 2:16 pm PDT (21:16 UTC) |
| 10,500 ft | 240° at 13 kt | +3 kt | 2 °C | 117 kt | 12 h 18 min | 1:57 pm PDT (20:57 UTC) |
| 12,500 ft | 230° at 15 kt | +1 kt | -2 °C | 119 kt | 12 h 06 min | 1:45 pm PDT (20:45 UTC) |
| 14,500 ft | 230° at 17 kt | +1 kt | -5 °C | 119 kt | 12 h 06 min | 1:45 pm PDT (20:45 UTC) |
| 16,500 ft | 230° at 20 kt | +1 kt | -10 °C | 119 kt | 12 h 06 min | 1:45 pm PDT (20:45 UTC) |
| 18,000 ft FL180 | 220° at 22 kt | 0 | -13 °C | 120 kt | 12 h | 1:39 pm PDT (20:39 UTC) |
| 24,000 ft FL240 | 230° at 28 kt | +4 kt | -23 °C | 116 kt | 12 h 24 min | 2:03 pm PDT (21:03 UTC) |
| 30,000 ft FL300 | 240° at 40 kt | +13 kt | -32 °C | 107 kt | 13 h 27 min | 3:06 pm PDT (22:06 UTC) |
| 34,000 ft FL340 | 250° at 43 kt | +18 kt | -37 °C | 102 kt | 14 h 06 min | 3:45 pm PDT (22:45 UTC) |
| 39,000 ft FL390 | 250° at 42 kt | +20 kt | -45 °C | 100 kt | 14 h 23 min | 4:02 pm PDT (23:02 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| DAL | used from 0 nm out; 49 nm from the line | 190/30 | 200/28 18° | 220/18 13° | 250/13 8° | 240/24 -6° | 270/20 -14° | 270/35 -29° | 290/34 -39° | 310/41 -51° |
| SPS | used from 50 nm out; 9 nm from the line | 220/35 | 220/31 18° | 230/16 14° | 230/10 8° | 250/18 -5° | 250/32 -16° | 260/51 -28° | 280/46 -38° | 300/50 -50° |
| GAG | used from 150 nm out; 74 nm from the line | 240/35 22° | 240/27 14° | 230/25 6° | 240/38 -7° | 230/44 -19° | 250/73 -28° | 270/66 -37° | 270/58 -49° | |
| AMA | used from 250 nm out; 63 nm from the line | 230/32 | 230/28 14° | 230/27 7° | 230/38 -6° | 230/50 -17° | 250/69 -28° | 260/62 -37° | 270/65 -49° | |
| GCK | used from 300 nm out; 92 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° | |
| PUB | used from 350 nm out; 99 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° | ||
| DEN | used from 550 nm out; 62 nm from the line | 270/24 11° | 230/13 5° | 230/48 -8° | 230/46 -20° | 230/63 -30° | 240/78 -36° | 240/78 -48° | ||
| RKS | used from 650 nm out; 87 nm from the line | 250/9 | 230/21 -1° | 210/43 -14° | 220/59 -23° | 220/55 -32° | 220/53 -35° | 220/48 -44° | ||
| PIH | used from 849 nm out; 67 nm from the line | 070/8 | 150/19 1° | 180/32 -4° | 210/44 -17° | 210/37 -28° | 210/74 -31° | 220/68 -35° | 220/60 -43° | |
| DLN | used from 999 nm out; 85 nm from the line | 190/10 -4° | 220/23 -4° | 210/21 -18° | 210/43 -28° | 210/60 -33° | 210/72 -37° | 210/67 -44° | ||
| BOI | used from 1049 nm out; 90 nm from the line | 320/11 1° | 280/8 -5° | 220/14 -11° | 200/60 -19° | 190/66 -31° | 210/46 -32° | 220/50 -33° | 220/43 -39° | |
| LWS | used from 1099 nm out; 90 nm from the line | L/V | 340/5 -3° | L/V -6° | 040/7 -10° | 100/23 -22° | 180/30 -31° | 190/11 -34° | 200/11 -36° | 220/23 -40° |
| YKM | used from 1249 nm out; 72 nm from the line | 360/6 | 360/11 -1° | 030/20 -7° | 040/21 -11° | 020/55 -18° | 010/84 -26° | 010/79 -40° | 010/45 -42° | 350/23 -42° |
| SEA | used from 1399 nm out; 26 nm from the line | 350/5 | 010/6 0° | 010/9 -4° | 010/27 -6° | 010/51 -15° | 360/58 -26° | 360/60 -41° | 350/55 -48° | 340/30 -45° |
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 |
|---|---|---|---|---|---|---|---|
| AFW Fort Worth, TX | departure | no report just now | 723 ft | ||||
| SPS Wichita Falls, TX | 80 nm out, 4 nm northwest of the line, tower | no report just now | 1,019 ft | ||||
| HHF Canadian, TX | 230 nm out, 15 nm northeast of the line | no report just now | 2,396 ft | ||||
| LHX La Junta, CO | 430 nm out, 8 nm northeast of the line | no report just now | 4,228 ft | ||||
| COS Colorado Springs, CO | 500 nm out, 4 nm northeast of the line, tower | no report just now | 6,187 ft | ||||
| HDN Hayden, CO | 650 nm out, 6 nm north of the line | no report just now | 6,606 ft | ||||
| RKS Rock Springs, WY | 759 nm out, 4 nm north of the line | no report just now | 6,764 ft | ||||
| IDA Idaho Falls, ID | 939 nm out, 13 nm northeast of the line, tower | no report just now | 4,743 ft | ||||
| LLJ Challis, ID | 1049 nm out, 8 nm northeast of the line | no report just now | 5,075 ft | ||||
| ALW Walla Walla, WA | 1239 nm out, 10 nm southwest of the line, tower | no report just now | 1,194 ft | ||||
| ELN Ellensburg, WA | 1349 nm out, 10 nm southwest of the line | no report just now | 1,763 ft | ||||
| PAE Everett, WA | destination | no report just now | 606 ft |
The highest airport on this list sits at 6,764 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At PAE when you get there the forecast at the estimated arrival, 1:39 pm PDT (20:39 UTC)
PAE has no terminal forecast; use the nearest airport that does.
Temporary flight restrictions on the line or within 25 nm of it
- 6/8646 Arlington, TX, Thursday, October 15, 2026 through Friday, October 16, 2026 UTC 18 nm from the route, at the departure end · drones kept away from a public gathering · starts Thursday 15 October · ZFW
- 6/8784 LAKE GEORGE, CO, Sunday, October 11, 2026 through Tuesday, October 13, 2026 UTC 8 nm from the route, 530 nm along the route · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · until 13 October · ZDV
Daylight
Sunset at AFW 6:59 pm CDT (23:59 UTC), at PAE 6:24 pm PDT (01:24 UTC) (civil twilight ends 6:55 pm PDT (01:55 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: Perot Fld/Fort Worth Alliance Airport, Seattle Paine Field International.