Harry Reid International to Seattle-Tacoma International LAS → SEA
753 nautical miles (867 statute miles) northwest on a straight line, true course 337°, about 326° magnetic at the departure end (variation 11E). At 120 knots that is 6 h 04 min at the quickest height in today's winds (39,000 ft, a 4-knot tailwind), arriving about 2:28 am PDT (09:28 UTC), after sunset at the destination. Right now LAS is VFR, wind from the south (190°) at 10 knots; SEA is VFR, wind from the north-northeast (030°) at 8 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: 11,172 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 W12W: thunderstorms (a convective SIGMET) up to 31,000 ft, moving from the southwest at 20 knots, until 9:55 pm PDT (04:55 UTC). Over the route from 149 to 248 nm out.
as issued
WSUS33 KKCI 120255 MKCW WST 120255 CONVECTIVE SIGMET 12W VALID UNTIL 0455Z NV FROM 40SSE TWF-10W ELY-30SE OAL-30W OAL-70WSW TWF-40SSE TWF AREA TS MOV FROM 24020KT. TOPS TO FL310.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the first 307 nm of the route.
- AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the first 89 nm of the route.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 20 to 218 nm out.
- AIRMET TANGO 1W: moderate turbulence below 18,000 ft (due to mountain wave) up to 15,000 ft. Over the route from 99 to 178 nm out.
- AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the last 327 nm of the route.
- AIRMET ZULU 2C: moderate icing up to 20,000 ft. Over the route from 486 to 654 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 LAS.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- E145 at 15,000 ft, 45 nm southwest, 6:45 pm PDT (01:45 UTC): moderate chop turbulence, light rime icing, -9 °C. At the departure end, 45 nm southwest of the line.
as filed, and in English
LAS UA /OV LAS213045/TM 0145/FL150/TP E145/TA M09/TB MOD CHOP/IC LGT RIME
- Report
- a routine report filed through LAS
- Where
- 45 nm southwest (213°) of LAS
- Time
- 01:45 UTC
- Height
- at 15,000 ft
- Aircraft
- E145
- Temperature
- −9 °C
- Turbulence
- moderate chop
- Icing
- light rime
- H25B at 17,000 ft, 30 nm southwest, 7:44 pm PDT (02:44 UTC): light rime icing, -10 °C, remarks: rndrz arrival. At the departure end, 30 nm southwest of the line.
as filed, and in English
LAS UA /OV LAS210030/TM 0244/FL170/TP H25B/TA -10/IC LT RIME/RM RNDRZ ARR
- Report
- a routine report filed through LAS
- Where
- 30 nm southwest (210°) of LAS
- Time
- 02:44 UTC
- Height
- at 17,000 ft
- Aircraft
- H25B
- Temperature
- -10
- Icing
- lt rime
- Remarks
- rndrz arrival
- B39M at 3,800 ft, 0 nm west, 7:30 pm PDT (02:30 UTC): no turbulence, wind 190° at 21 knots, remarks: during the descent runway 26L las. At the departure end, 0 nm west of the line.
as filed, and in English
LAS UA /OV 08006/TM 0230/FL038/TP B39M/WV 19021KT/TB NEG/RM DURD RY26L LAS
- Report
- a routine report filed through LAS
- Where
- wind from 080° at 6 knots
- Time
- 02:30 UTC
- Height
- at 3,800 ft
- Aircraft
- B39M
- Wind
- from 190° at 21 knots
- Turbulence
- none
- Remarks
- during the descent runway 26L las
- E75L at 11,000 ft, 40 nm southwest, 5:36 pm PDT (00:36 UTC): trace to light rime icing from 10,500 ft to 11,500 ft, -8 °C, remarks: durc-zse. 555 nm along the route, 40 nm southwest of the line.
as filed, and in English
RDM UA /OV DSD090015/TM 0036/FL110/TP E75L/TA M08/IC TRACE-LGT RIME 105-115/RM DURC-ZSE
- Report
- a routine report filed through RDM
- Where
- 15 nm east (090°) of DSD
- Time
- 00:36 UTC
- Height
- at 11,000 ft
- Aircraft
- E75L
- Temperature
- −8 °C
- Icing
- trace-lgt rime from 10,500 ft to 11,500 ft
- Remarks
- durc-zse
- B738 at 11,000 ft, 45 nm southwest, 6:19 pm PDT (01:19 UTC): light rime icing, remarks: during the descent runway 5. 565 nm along the route, 45 nm southwest of the line.
as filed, and in English
RDM UA /OV RDM/TM 0119/FL110/TP B738/TA UNKN/IC LGT RIME/RM DURD RWY 5
- Report
- a routine report filed through RDM
- Where
- over RDM
- Time
- 01:19 UTC
- Height
- at 11,000 ft
- Aircraft
- B738
- Temperature
- UNKN
- Icing
- light rime
- Remarks
- during the descent runway 5
- E75L at 11,000 ft, 45 nm southwest, 6:16 pm PDT (01:16 UTC): light rime icing, remarks: during the descent runway 29. 565 nm along the route, 45 nm southwest of the line.
as filed, and in English
RDM UA /OV RDM/TM 0116/FL110/TP E75L/TA UNKN/IC LGT RIME/RM DURD RWY 29
- Report
- a routine report filed through RDM
- Where
- over RDM
- Time
- 01:16 UTC
- Height
- at 11,000 ft
- Aircraft
- E75L
- Temperature
- UNKN
- Icing
- light rime
- Remarks
- during the descent runway 29
- E175 at 6,500 ft, 45 nm southwest, 5:28 pm PDT (00:28 UTC): a broken layer above 6,500 ft. 565 nm along the route, 45 nm southwest of the line.
as filed, and in English
RDM UA /OV RDM/TM 0028/FL065/TP E175/SK BKN065-TOPSUNKN
- Report
- a routine report filed through RDM
- Where
- over RDM
- Time
- 00:28 UTC
- Height
- at 6,500 ft
- Aircraft
- E175
- Sky
- a broken layer from 6,500 ft, tops unknown
- C337 at 12,000 ft, 37 nm northeast, 6:18 pm PDT (01:18 UTC): light rime icing, -12 °C, remarks: zse. 654 nm along the route, 37 nm northeast of the line.
as filed, and in English
YKM UA /OV YKM155020/TM 0118/FL120/TP C337/TA M12/IC LGT RIME/RM ZSE
- Report
- a routine report filed through YKM
- Where
- 20 nm southeast (155°) of YKM
- Time
- 01:18 UTC
- Height
- at 12,000 ft
- Aircraft
- C337
- Temperature
- −12 °C
- Icing
- light rime
- Remarks
- zse
- PC12 at 13,000 ft, 11 nm northeast, 5:42 pm PDT (00:42 UTC): remarks: zse. 704 nm along the route, 11 nm northeast of the line.
as filed, and in English
YKM UA /OV YKM270050/TM 0042/FL130/TP PC12/SK TOP130/RM -ZSE
- Report
- a routine report filed through YKM
- Where
- 50 nm west (270°) of YKM
- Time
- 00:42 UTC
- Height
- at 13,000 ft
- Aircraft
- PC12
- Sky
- TOP130
- Remarks
- zse
- PC12 at 15,000 ft, 11 nm northeast, 5:42 pm PDT (00:42 UTC): remarks: zse. 704 nm along the route, 11 nm northeast of the line.
as filed, and in English
YKM UA /OV YKM270050/TM 0042/FL150/TP PC12/SK TOP130/RM -ZSE
- Report
- a routine report filed through YKM
- Where
- 50 nm west (270°) of YKM
- Time
- 00:42 UTC
- Height
- at 15,000 ft
- Aircraft
- PC12
- Sky
- TOP130
- Remarks
- zse
- A321 at 13,500 ft, 11 nm east, 6:54 pm PDT (01:54 UTC): remarks: zse. 714 nm along the route, 11 nm east of the line.
as filed, and in English
SEA UA /OV SEA120045/TM 0154/FL135/TP A321/SK TOP130/RM ZSE
- Report
- a routine report filed through SEA
- Where
- 45 nm southeast (120°) of SEA
- Time
- 01:54 UTC
- Height
- at 13,500 ft
- Aircraft
- A321
- Sky
- TOP130
- Remarks
- zse
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 7 forecast points nearest it (LAS, ELY, BAM, LKV, 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 |
|---|---|---|---|---|---|---|
| 8,500 ft | 010° at 2 kt | +2 kt | -3 °C | 118 kt | 6 h 23 min | 2:47 am PDT (09:47 UTC) |
| 10,500 ft | 340° at 4 kt | +4 kt | -6 °C | 116 kt | 6 h 29 min | 2:53 am PDT (09:53 UTC) |
| 12,500 ft | 330° at 6 kt | +6 kt | -9 °C | 114 kt | 6 h 36 min | 3:00 am PDT (10:00 UTC) |
| 14,500 ft | 320° at 7 kt | +6 kt | -12 °C | 114 kt | 6 h 36 min | 3:00 am PDT (10:00 UTC) |
| 16,500 ft | 310° at 7 kt | +6 kt | -15 °C | 114 kt | 6 h 36 min | 3:00 am PDT (10:00 UTC) |
| 18,000 ft FL180 | 310° at 7 kt | +6 kt | -18 °C | 114 kt | 6 h 36 min | 3:00 am PDT (10:00 UTC) |
| 24,000 ft FL240 | 340° at 20 kt | +19 kt | -25 °C | 101 kt | 7 h 27 min | 3:51 am PDT (10:51 UTC) |
| 30,000 ft FL300 | 300° at 20 kt | +16 kt | -32 °C | 104 kt | 7 h 14 min | 3:38 am PDT (10:38 UTC) |
| 34,000 ft FL340 | 260° at 20 kt | +5 kt | -36 °C | 115 kt | 6 h 33 min | 2:57 am PDT (09:57 UTC) |
| 39,000 ft FL390 | 240° at 28 kt | −4 kt | -41 °C | 124 kt | 6 h 04 min | 2:28 am PDT (09:28 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| LAS | used from 0 nm out; 25 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 99 nm out; 101 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 198 nm out; 67 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° | ||
| LKV | used from 347 nm out; 94 nm from the line | 010/8 -8° | 350/13 -11° | 340/21 -21° | 360/60 -26° | 350/37 -32° | 310/26 -35° | 260/25 -39° | ||
| RDM | used from 496 nm out; 60 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 595 nm out; 67 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 694 nm out; 35 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 |
|---|---|---|---|---|---|---|---|
| LAS Las Vegas, NV | departure | VFR Sky: a few clouds at 3,500 feet, scattered clouds at 8,000 feet, a broken layer at 12,000 feet, a broken layer at 15,000 feet | from the south (190°) at 10 knots | 10+ mi | 12,000 ft | 2,183 ft | 7:56 pm PDT (02:56 UTC) |
| TMT Austin, NV | 228 nm out, 9 nm southwest of the line | VFR Sky: scattered clouds at 4,600 feet, overcast at 5,000 feet Weather: light rain | from the north (010°) at 8 knots | 10+ mi | 5,000 ft | 5,735 ft | 03:15 UTC |
| WMC Winnemucca, NV | 317 nm out, 3 nm southeast of the line | VFR Sky: overcast at 11,000 feet | from the north-northwest (330°) at 10 knots | 10+ mi | 11,000 ft | 4,307 ft | 02:56 UTC |
| BNO Burns, OR | 486 nm out, 24 nm east of the line | VFR | from the northwest (320°) at 10 knots, gusting to 22 | 10+ mi | none | 4,148 ft | 02:53 UTC |
| DLS The Dalles, OR | 634 nm out, 8 nm southwest of the line | VFR Sky: overcast at 11,000 feet | from the southwest (230°) at 3 knots | 10+ mi | 11,000 ft | 246 ft | 02:53 UTC |
| PLU Puyallup, WA | 734 nm out, 9 nm west of the line | VFR Weather: light drizzle | calm | 10+ mi | none | 537 ft | 03:15 UTC |
| SEA Seattle, WA | destination | VFR Sky: a few clouds at 3,000 feet | from the north-northeast (030°) at 8 knots | 10+ mi | none | 432 ft | 7:53 pm PDT (02:53 UTC) |
The highest airport on this list sits at 5,735 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, 2:28 am PDT (09:28 UTC)
Wind from the north at 6 knots, visibility more than 6 miles, clear skies VFR
The whole forecast for SEA
- From Sun 8:00 pm PDT (03:00 UTC): wind from the north at 6 knots, visibility more than 6 miles, clear skies
- From Mon 3:00 am PDT (10:00 UTC): wind from the southeast at 4 knots, 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 4 knots, visibility more than 6 miles, clear skies
- From Mon 11:00 am PDT (18:00 UTC): wind from the west at 6 knots, visibility more than 6 miles, clear skies
- From Mon 8:00 pm PDT (03:00 UTC): wind from the northwest at 5 knots, visibility more than 6 miles, scattered clouds at 25,000 feet
The forecast for LAS, the departure
- From Sun 5:00 pm PDT (00:00 UTC): wind from the south-southwest at 14 knots, gusting to 24, visibility more than 6 miles, showers nearby, a few clouds at 6,000 feet, scattered clouds at 8,000 feet and more above
- From Sun 8:00 pm PDT (03:00 UTC): wind from the south at 12 knots, gusting to 20, visibility more than 6 miles, a few clouds at 8,000 feet, a broken layer at 10,000 feet
- From Mon 1:00 am PDT (08:00 UTC): wind from the south at 7 knots, visibility more than 6 miles, a few clouds at 8,000 feet, a broken layer at 10,000 feet
- From Mon 8:00 am PDT (15:00 UTC): wind from the south at 8 knots, visibility more than 6 miles, showers nearby, scattered clouds at 7,000 feet, a broken layer at 10,000 feet
- From Mon 12:00 pm PDT (19:00 UTC): wind from the south-southwest at 15 knots, gusting to 25, visibility more than 6 miles, showers nearby, scattered clouds at 7,000 feet, a broken layer at 12,000 feet
- From Mon 8:00 pm PDT (03:00 UTC): wind from the southwest at 10 knots, visibility more than 6 miles, a few clouds at 8,000 feet, scattered clouds at 10,000 feet
Temporary flight restrictions on the line or within 25 nm of it
- 6/8890 LAS VEGAS, NV, Tuesday, October 13, 2026 Local on the route, at the departure end · a VIP movement · starts tomorrow · ZLA
- 6/8808 Las Vegas, NV, Tuesday, October 13, 2026 Local on the route, at the departure end · security · starts tomorrow · ZLA
Daylight
Sunset at LAS 6:08 pm PDT (01:08 UTC), at SEA 6:27 pm PDT (01:27 UTC) (civil twilight ends 6:58 pm PDT (01:58 UTC)). At 120 knots the arrival at SEA is before sunrise there (7:23 am PDT (14:23 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: Harry Reid International, Seattle-Tacoma International.