Seattle-Tacoma International to Minneapolis-St Paul Intl/Wold-Chamberlain Airport SEA → MSP
1,212 nautical miles (1,395 statute miles) east on a straight line, true course 087°, about 071° magnetic at the departure end (variation 16E). At 120 knots that is 7 h 40 min at the quickest height in today's winds (39,000 ft, a 38-knot tailwind), arriving about 6:05 am CDT (11:05 UTC), after sunset at the destination. Right now SEA is VFR, wind from the north-northeast (030°) at 8 knots; MSP is VFR, wind from the south (180°) 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: 6,144 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 1C: thunderstorms (a convective SIGMET) up to 30,000 ft, moving from the southwest at 40 knots, until 9:55 pm PDT (04:55 UTC). Near the route, 775 nm along the route.
as issued
WSUS32 KKCI 120255 MKCC WST 120255 CONVECTIVE SIGMET 1C VALID UNTIL 0455Z SD ND MT WY FROM 30WSW DIK-50NW DPR-60WNW RAP-50ENE SHR-30WSW DIK AREA TS MOV FROM 22040KT. TOPS TO FL300.
- AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the first 169 nm of the route.
- AIRMET ZULU 2C: moderate icing up to 20,000 ft. Over the route from 60 to 497 nm out.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 238 to 546 nm out.
- AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the route from 258 to 457 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 268 to 914 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 974 to 1093 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 SEA.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- A321 at 13,500 ft, 37 nm south, 6:54 pm PDT (01:54 UTC): remarks: zse. At the departure end, 37 nm south 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
- PC12 at 13,000 ft, 37 nm south, 5:42 pm PDT (00:42 UTC): remarks: zse. At the departure end, 37 nm south 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, 37 nm south, 5:42 pm PDT (00:42 UTC): remarks: zse. At the departure end, 37 nm south 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
- SB20 at 16,000 ft, 22 nm north, 6:52 pm PDT (01:52 UTC): remarks: zse. 50 nm along the route, 22 nm north of the line.
as filed, and in English
PAE UA /OV PAE075045/TM 0152/FL160/TP SB20/SK TOP120/RM ZSE
- Report
- a routine report filed through PAE
- Where
- 45 nm east (075°) of PAE
- Time
- 01:52 UTC
- Height
- at 16,000 ft
- Aircraft
- SB20
- Sky
- TOP120
- Remarks
- zse
- E75L descending, 49 nm north, 6:06 pm PDT (01:06 UTC): overcast above 4,000 ft. 328 nm along the route, 49 nm north of the line.
as filed, and in English
GPI UA /OV KGPI/TM 0106/FLDURD/TP E75L/SK OVC040
- Report
- a routine report filed through GPI
- Where
- over KGPI
- Time
- 01:06 UTC
- Height
- during the descent
- Aircraft
- E75L
- Sky
- overcast from 4,000 ft
- CL30 at 4,200 ft, 35 nm south, 8:16 pm PDT (03:16 UTC): no icing, overcast above 4,200 ft, remarks: during the descent ils runway 12. 338 nm along the route, 35 nm south of the line.
as filed, and in English
MSO UA /OV MSO/TM 0316/FL042/TP CL30/SK OVC042/WX 2 1/2SM/IC NEG/RM DURD ILS RY 12
- Report
- a routine report filed through MSO
- Where
- over MSO
- Time
- 03:16 UTC
- Height
- at 4,200 ft
- Aircraft
- CL30
- Sky
- overcast from 4,200 ft
- Weather
- 2, 1/2SM
- Icing
- none
- Remarks
- during the descent ils runway 12
- BCS1 at 3,700 ft, 35 nm south, 6:47 pm PDT (01:47 UTC): snow, rain, remarks: during the descent ils runway 12. 338 nm along the route, 35 nm south of the line.
as filed, and in English
MSO UA /OV MSO/TM 0147/FL037/TP BCS1/SK 037/WX SN RA/RM DURD ILS RY 12
- Report
- a routine report filed through MSO
- Where
- over MSO
- Time
- 01:47 UTC
- Height
- at 3,700 ft
- Aircraft
- BCS1
- Sky
- at 3,700 ft
- Weather
- snow, rain
- Remarks
- during the descent ils runway 12
- C25B at 4,100 ft, 35 nm south, 5:36 pm PDT (00:36 UTC): no icing, overcast above 4,100 ft, remarks: during the descent ils runway 12. 338 nm along the route, 35 nm south of the line.
as filed, and in English
MSO UA /OV MSO/TM 0036/FL041/TP C25B/SK OVC041/IC NEG/RM DURD ILS RY 12
- Report
- a routine report filed through MSO
- Where
- over MSO
- Time
- 00:36 UTC
- Height
- at 4,100 ft
- Aircraft
- C25B
- Sky
- overcast from 4,100 ft
- Icing
- none
- Remarks
- during the descent ils runway 12
- B789 at 35,000 ft, 38 nm north, 6:57 pm PDT (01:57 UTC): light turbulence. 815 nm along the route, 38 nm north of the line.
as filed, and in English
DIK UA /OV DIK040030/TM 0157/FL350/TP B789/TB CONS LGT/ OCNL MOD CHOP/ NEG 370
- Report
- a routine report filed through DIK
- Where
- 30 nm northeast (040°) of DIK
- Time
- 01:57 UTC
- Height
- at 35,000 ft
- Aircraft
- B789
- Turbulence
- continuous light occasional moderate chop no at 37,000 ft
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 11 forecast points nearest it (SEA, YKM, GEG, GPI, GTF, BIL, MLS, DIK, ABR, AXN, MSP). 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 | 120° at 8 kt | +8 kt | 1 °C | 112 kt | 10 h 49 min | 9:14 am CDT (14:14 UTC) |
| 7,500 ft | 160° at 6 kt | +4 kt | 4 °C | 116 kt | 10 h 27 min | 8:52 am CDT (13:52 UTC) |
| 9,500 ft | 200° at 8 kt | 0 | 1 °C | 120 kt | 10 h 06 min | 8:31 am CDT (13:31 UTC) |
| 11,500 ft | 210° at 13 kt | −5 kt | -2 °C | 125 kt | 9 h 42 min | 8:07 am CDT (13:07 UTC) |
| 13,500 ft | 220° at 16 kt | −8 kt | -5 °C | 128 kt | 9 h 28 min | 7:53 am CDT (12:53 UTC) |
| 15,500 ft | 230° at 19 kt | −11 kt | -9 °C | 131 kt | 9 h 15 min | 7:40 am CDT (12:40 UTC) |
| 17,500 ft | 230° at 21 kt | −14 kt | -13 °C | 134 kt | 9 h 03 min | 7:28 am CDT (12:28 UTC) |
| 18,000 ft FL180 | 230° at 22 kt | −14 kt | -13 °C | 134 kt | 9 h 03 min | 7:28 am CDT (12:28 UTC) |
| 24,000 ft FL240 | 230° at 25 kt | −14 kt | -24 °C | 134 kt | 9 h 03 min | 7:28 am CDT (12:28 UTC) |
| 30,000 ft FL300 | 230° at 27 kt | −17 kt | -37 °C | 137 kt | 8 h 51 min | 7:16 am CDT (12:16 UTC) |
| 34,000 ft FL340 | 240° at 37 kt | −29 kt | -41 °C | 149 kt | 8 h 08 min | 6:33 am CDT (11:33 UTC) |
| 39,000 ft FL390 | 240° at 47 kt | −38 kt | -45 °C | 158 kt | 7 h 40 min | 6:05 am CDT (11:05 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; 25 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; 57 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° |
| GEG | used from 99 nm out; 70 nm from the line | 080/16 -2° | 050/17 -7° | 080/9 -10° | 190/33 -21° | 180/31 -32° | L/V -35° | L/V -37° | 270/8 -40° | |
| GPI | used from 248 nm out; 71 nm from the line | 070/19 -5° | 100/16 -7° | 080/10 -8° | 130/8 -19° | 170/37 -28° | 200/50 -40° | 210/43 -40° | 220/41 -42° | |
| GTF | used from 397 nm out; 22 nm from the line | 070/11 | 080/15 -7° | 110/19 -9° | 190/25 -14° | 200/34 -23° | 200/54 -39° | 220/66 -40° | 220/77 -44° | |
| BIL | used from 546 nm out; 82 nm from the line | 080/13 | 180/9 -2° | 210/38 0° | 220/51 -11° | 210/46 -22° | 210/58 -35° | 230/73 -39° | 230/72 -45° | |
| MLS | used from 596 nm out; 61 nm from the line | 150/23 2° | 190/29 4° | 210/44 2° | 220/32 -10° | 210/36 -21° | 200/48 -37° | 230/63 -40° | 240/71 -47° | |
| DIK | used from 745 nm out; 29 nm from the line | 150/24 7° | 200/38 6° | 220/53 0° | 230/51 -9° | 230/49 -21° | 240/37 -37° | 240/47 -44° | 250/65 -48° | |
| ABR | used from 894 nm out; 77 nm from the line | 070/14 | 250/10 17° | 270/16 11° | 260/28 5° | 260/36 -10° | 260/41 -22° | 270/33 -37° | 260/42 -42° | 260/50 -48° |
| AXN | used from 1043 nm out; 49 nm from the line | 100/14 | 250/21 14° | 240/24 12° | 240/31 5° | 260/36 -10° | 260/40 -21° | 250/42 -36° | 260/48 -45° | 260/53 -50° |
| MSP | used from 1143 nm out; 45 nm from the line | 230/26 | 240/30 17° | 240/24 12° | 250/22 5° | 250/35 -10° | 260/36 -21° | 250/41 -36° | 250/49 -45° | 260/58 -52° |
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 |
|---|---|---|---|---|---|---|---|
| SEA Seattle, WA | departure | 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) |
| MWH Moses Lake, WA | 119 nm out, 20 nm south of the line, tower | VFR Sky: scattered clouds at 8,500 feet, overcast at 11,000 feet | from the north-northwest (330°) at 3 knots | 10+ mi | 11,000 ft | 1,188 ft | 02:52 UTC |
| GEG Spokane, WA | 199 nm out, 7 nm northwest of the line, tower | VFR Sky: a broken layer at 6,000 feet, a broken layer at 11,000 feet | from the northeast (040°) at 10 knots | 10+ mi | 6,000 ft | 2,385 ft | 02:53 UTC |
| THM Thompson Falls, MT | 288 nm out, 4 nm northwest of the line | no report just now | 2,467 ft | ||||
| GTF Great Falls, MT | 447 nm out, 7 nm northwest of the line, tower | low IFR Sky: a few clouds at 300 feet, overcast at 700 feet Weather: light snow, mist | from the north-northeast (020°) at 10 knots | 0.75 mi | 700 ft | 3,680 ft | 02:53 UTC |
| LWT Lewistown, MT | 527 nm out, 13 nm south of the line | no report just now | 4,170 ft | ||||
| JDN Jordan, MT | 626 nm out, 17 nm north of the line | reported, no category | from the northeast (050°) at 14 knots | none | 2,667 ft | 02:48 UTC | |
| DIK Dickinson, ND | 795 nm out, 13 nm north of the line | low IFR Sky: overcast at 400 feet Weather: rain, mist | from the northeast (050°) at 16 knots, gusting to 23 | 5 mi | 400 ft | 2,592 ft | 02:56 UTC |
| ASY Ashley, ND | 944 nm out, 3 nm south of the line | no report just now | 2,034 ft | ||||
| BTN Britton, SD | 1013 nm out, 1 nm north of the line | low IFR Sky: overcast at 400 feet | from the north (010°) at 10 knots, gusting to 17 | 10+ mi | 400 ft | 1,318 ft | 03:10 UTC |
| LJF Litchfield, MN | 1153 nm out, 5 nm southeast of the line | reported, no category | calm | 10+ mi | none | 1,139 ft | 03:15 UTC |
| MSP Minneapolis, MN | destination | VFR Sky: a broken layer at 25,000 feet | from the south (180°) at 8 knots | 10+ mi | 25,000 ft | 841 ft | 9:53 pm CDT (02:53 UTC) |
The highest airport on this list sits at 4,170 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At MSP when you get there the forecast at the estimated arrival, 6:05 am CDT (11:05 UTC)
Wind light and variable, visibility more than 6 miles, scattered clouds at 20,000 feet VFR
The whole forecast for MSP
- From Sun 9:00 pm CDT (02:00 UTC): wind from the south at 7 knots, visibility more than 6 miles, a broken layer at 20,000 feet
- From Mon 6:00 am CDT (11:00 UTC): wind light and variable, visibility more than 6 miles, scattered clouds at 20,000 feet
- From Mon 10:00 pm CDT (03:00 UTC): wind from the northwest at 9 knots, visibility more than 6 miles, a few clouds at 2,500 feet, a broken layer at 15,000 feet
The forecast for SEA, the departure
- 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
Temporary flight restrictions on the line or within 25 nm of it
- 6/6656 ANOKA, MN, Monday, October 5, 2026 through Monday, October 19, 2026 Local 16 nm from the route, at the destination end · security · until 19 October · ZMP
Daylight
Sunset at SEA 6:27 pm PDT (01:27 UTC), at MSP 6:33 pm CDT (23:33 UTC) (civil twilight ends 7:03 pm CDT (00:03 UTC)). At 120 knots the arrival at MSP is before sunrise there (7:24 am CDT (12:24 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: Seattle-Tacoma International, Minneapolis-St Paul Intl/Wold-Chamberlain Airport.
