Spokane International to General Edward Lawrence Logan International GEG → BOS
1,970 nautical miles (2,268 statute miles) east on a straight line, true course 082°, about 068° magnetic at the departure end (variation 14E). At 120 knots that is 11 h 12 min at the quickest height in today's winds (39,000 ft, a 56-knot tailwind), arriving about 3:16 pm EDT (19:16 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: 7 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 ZULU 2C: moderate icing up to 23,000 ft. Over the first 597 nm of the route.
- AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the first 189 nm of the route.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 50 to 199 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 80 to 1105 nm out.
- 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). Near the route, 1334 nm along the route.
- AIRMET SIERRA 3E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist, fog). Over the last 249 nm of the route.
- AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 1751 to 1901 nm out.
- AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft. Over the last 159 nm of the route.
- AIRMET ZULU 1C: moderate icing from 12,000 ft to 24,000 ft. Over the route from 1891 to 1891 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 GEG.
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 15 forecast points nearest it (GEG, GPI, GTF, GGW, MOT, GFK, INL, DLH, GRB, TVC, BUF, SYR, ALB, BDL, BOS). A plus sign is a headwind, a minus sign a tailwind.
| Height | Average wind | Head- or tailwind | Temperature | Ground speed | Time en route | Arrival |
|---|---|---|---|---|---|---|
| 3,500 ft | 270° at 3 kt | −3 kt | 123 kt | 16 h 01 min | 8:05 pm EDT (00:05 UTC) | |
| 5,500 ft | light and variable | 0 | 0 °C | 120 kt | 16 h 25 min | 8:29 pm EDT (00:29 UTC) |
| 7,500 ft | 260° at 2 kt | −3 kt | 6 °C | 123 kt | 16 h 01 min | 8:05 pm EDT (00:05 UTC) |
| 9,500 ft | 240° at 6 kt | −5 kt | 3 °C | 125 kt | 15 h 46 min | 7:50 pm EDT (23:50 UTC) |
| 11,500 ft | 240° at 11 kt | −9 kt | 0 °C | 129 kt | 15 h 16 min | 7:20 pm EDT (23:20 UTC) |
| 13,500 ft | 250° at 16 kt | −14 kt | -3 °C | 134 kt | 14 h 42 min | 6:46 pm EDT (22:46 UTC) |
| 15,500 ft | 250° at 20 kt | −19 kt | -7 °C | 139 kt | 14 h 10 min | 6:14 pm EDT (22:14 UTC) |
| 17,500 ft | 250° at 24 kt | −23 kt | -11 °C | 143 kt | 13 h 47 min | 5:51 pm EDT (21:51 UTC) |
| 18,000 ft FL180 | 250° at 25 kt | −24 kt | -12 °C | 144 kt | 13 h 41 min | 5:45 pm EDT (21:45 UTC) |
| 24,000 ft FL240 | 250° at 31 kt | −28 kt | -22 °C | 148 kt | 13 h 19 min | 5:23 pm EDT (21:23 UTC) |
| 30,000 ft FL300 | 250° at 37 kt | −35 kt | -37 °C | 155 kt | 12 h 43 min | 4:47 pm EDT (20:47 UTC) |
| 34,000 ft FL340 | 250° at 43 kt | −40 kt | -44 °C | 160 kt | 12 h 19 min | 4:23 pm EDT (20:23 UTC) |
| 39,000 ft FL390 | 260° at 59 kt | −56 kt | -50 °C | 176 kt | 11 h 12 min | 3:16 pm EDT (19:16 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| GEG | used from 0 nm out; 25 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 50 nm out; 66 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 199 nm out; 42 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° | |
| GGW | used from 348 nm out; 67 nm from the line | 110/23 0° | 130/20 -2° | 170/24 -3° | 230/44 -11° | 220/51 -21° | 210/52 -39° | 220/64 -44° | 240/85 -48° | |
| MOT | used from 547 nm out; 82 nm from the line | 120/14 5° | 200/20 4° | 230/33 1° | 250/39 -11° | 250/50 -21° | 240/61 -37° | 250/56 -45° | 260/68 -51° | |
| GFK | used from 746 nm out; 49 nm from the line | 070/18 | 100/10 9° | 250/11 6° | 250/27 1° | 250/34 -10° | 260/43 -21° | 260/39 -36° | 260/36 -46° | 260/59 -53° |
| INL | used from 896 nm out; 79 nm from the line | 080/23 | L/V 9° | 260/22 5° | 260/27 0° | 260/43 -11° | 270/47 -21° | 270/57 -36° | 270/54 -47° | 270/69 -56° |
| DLH | used from 945 nm out; 65 nm from the line | 080/28 | 240/21 15° | 250/26 9° | 250/32 3° | 260/42 -11° | 270/40 -21° | 260/43 -36° | 260/46 -46° | 260/65 -54° |
| GRB | used from 1144 nm out; 142 nm from the line | 250/36 | 270/23 16° | 270/14 9° | 240/18 4° | 280/26 -9° | 280/29 -20° | 290/42 -36° | 290/51 -45° | 290/72 -55° |
| TVC | used from 1244 nm out; 106 nm from the line | 260/31 | 280/22 15° | 290/18 10° | 270/13 2° | 290/25 -10° | 300/35 -21° | 310/52 -37° | 320/59 -47° | 300/84 -54° |
| BUF | used from 1493 nm out; 160 nm from the line | 320/10 | 010/16 10° | 360/10 6° | 340/13 2° | 330/22 -11° | 300/25 -23° | 320/31 -38° | 300/29 -44° | 280/36 -50° |
| SYR | used from 1642 nm out; 94 nm from the line | 280/13 | 350/18 10° | 340/10 6° | 300/15 1° | 280/17 -12° | 270/16 -23° | 280/25 -38° | 250/40 -42° | 240/53 -50° |
| ALB | used from 1791 nm out; 44 nm from the line | 120/9 | 270/8 10° | L/V 5° | 260/9 1° | 260/34 -10° | 250/42 -22° | 240/57 -35° | 240/70 -42° | 240/65 -50° |
| BDL | used from 1891 nm out; 55 nm from the line | 120/24 | 290/23 12° | 280/21 8° | 250/36 3° | 250/41 -11° | 230/48 -21° | 230/78 -32° | 230/96 -41° | 230/86 -52° |
| BOS | used from 1941 nm out; 15 nm from the line | 110/20 | 200/26 12° | 280/24 8° | 260/29 3° | 250/47 -10° | 230/59 -19° | 230/74 -33° | 240/95 -41° | 240/96 -53° |
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 |
|---|---|---|---|---|---|---|---|
| GEG Spokane, WA | departure | no report just now | 2,385 ft | ||||
| COE Coeur D'Alene, ID | 30 nm out, 5 nm north of the line | no report just now | 2,320 ft | ||||
| CII Choteau, MT | 219 nm out, 12 nm south of the line | no report just now | 3,946 ft | ||||
| GGW Glasgow, MT | 438 nm out, 4 nm northeast of the line | no report just now | 2,295 ft | ||||
| MOT Minot, ND | 657 nm out, 12 nm north of the line, tower | no report just now | 1,715 ft | ||||
| GFK Grand Forks, ND | 816 nm out, 9 nm northeast of the line, tower | no report just now | 845 ft | ||||
| HIB Hibbing, MN | 995 nm out, 2 nm east of the line | no report just now | 1,353 ft | ||||
| SAW Marquette, MI | 1224 nm out, 15 nm south of the line, tower | no report just now | 1,204 ft | ||||
| DRM Drummond Island, MI | 1383 nm out, 7 nm north of the line | no report just now | 668 ft | ||||
| ART Watertown, NY | 1732 nm out, 2 nm northwest of the line | no report just now | 330 ft | ||||
| ASH Nashua, NH | 1941 nm out, 13 nm north of the line, tower | no report just now | 200 ft | ||||
| BOS Boston, MA | destination | no report just now | 19 ft |
The highest airport on this list sits at 3,946 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At BOS when you get there the forecast at the estimated arrival, 3:16 pm EDT (19:16 UTC)
BOS has no terminal forecast; use the nearest airport that does.
Temporary flight restrictions on the line or within 25 nm of it
- 6/4348 GRAND FORKS AFB, ND, Sunday, March 8, 2026 through Sunday, November 1, 2026 Local on the route, 806 nm along the route · security · until 1 November · ZMP
- 6/8665 9NM E HERMAN, MI, Friday, October 9, 2026 through Tuesday, October 13, 2026 UTC on the route, 1194 nm along the route · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · until 13 October · ZMP
- 6/8771 NW NEGAUNEE, MI, Saturday, October 10, 2026 through Thursday, October 15, 2026 UTC on the route, 1214 nm along the route · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · until 15 October · ZMP
- 6/8802 Foxborough, MA, Saturday, October 17, 2026 through Sunday, October 18, 2026 UTC 19 nm from the route, at the destination end · drones kept away from a public gathering · starts Saturday 17 October · ZBW
Daylight
Sunset at GEG 6:06 pm PDT (01:06 UTC), at BOS 6:07 pm EDT (22:07 UTC) (civil twilight ends 6:35 pm EDT (22:35 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: Spokane International, General Edward Lawrence Logan International.