Ted Stevens Anchorage International to General Edward Lawrence Logan International ANC → BOS
2,931 nautical miles (3,374 statute miles) east on a straight line, true course 074°, about 058° magnetic at the departure end (variation 16E). At 120 knots that is 17 h 46 min at the quickest height in today's winds (34,000 ft, a 45-knot tailwind), arriving about 2:00 pm EDT (18:00 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: 14 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 1C: moderate icing up to 24,000 ft. Over the last 209 nm of the route.
- AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft. Over the last 209 nm of the route.
- AIRMET TANGO 2W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the last 199 nm of the route.
- AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Near the route, at the destination end.
- AIRMET SIERRA 3E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Near the route, at the destination end.
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 ANC.
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 20:00–03:00 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 5 forecast points nearest it (ANC, GKN, ORT, JNU, ANN). 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 | 190° at 10 kt | +2 kt | 118 kt | 24 h 50 min | 9:04 pm EDT (01:04 UTC) | |
| 5,500 ft | 230° at 15 kt | −7 kt | -3 °C | 127 kt | 23 h 05 min | 7:19 pm EDT (23:19 UTC) |
| 7,500 ft | 250° at 19 kt | −14 kt | -1 °C | 134 kt | 21 h 52 min | 6:06 pm EDT (22:06 UTC) |
| 9,500 ft | 260° at 24 kt | −20 kt | -3 °C | 140 kt | 20 h 56 min | 5:10 pm EDT (21:10 UTC) |
| 11,500 ft | 260° at 26 kt | −24 kt | -6 °C | 144 kt | 20 h 21 min | 4:35 pm EDT (20:35 UTC) |
| 13,500 ft | 260° at 30 kt | −26 kt | -10 °C | 146 kt | 20 h 05 min | 4:19 pm EDT (20:19 UTC) |
| 15,500 ft | 260° at 33 kt | −27 kt | -14 °C | 147 kt | 19 h 56 min | 4:10 pm EDT (20:10 UTC) |
| 17,500 ft | 250° at 36 kt | −28 kt | -17 °C | 148 kt | 19 h 48 min | 4:02 pm EDT (20:02 UTC) |
| 18,000 ft FL180 | 250° at 37 kt | −28 kt | -18 °C | 148 kt | 19 h 48 min | 4:02 pm EDT (20:02 UTC) |
| 24,000 ft FL240 | 250° at 45 kt | −36 kt | -29 °C | 156 kt | 18 h 47 min | 3:01 pm EDT (19:01 UTC) |
| 30,000 ft FL300 | 250° at 51 kt | −38 kt | -43 °C | 158 kt | 18 h 33 min | 2:47 pm EDT (18:47 UTC) |
| 34,000 ft FL340 | 260° at 48 kt | −45 kt | -50 °C | 165 kt | 17 h 46 min | 2:00 pm EDT (18:00 UTC) |
| 39,000 ft FL390 | 260° at 49 kt | −45 kt | -55 °C | 165 kt | 17 h 46 min | 2:00 pm EDT (18:00 UTC) |
Based on data from the 11th at 18:00 UTC; valid on the 12th at 00:00 UTC for use 20:00 to 03:00 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| ANC | used from 0 nm out; 25 nm from the line | 220/10 | 220/14 -6° | 240/17 -11° | 250/18 -18° | 270/14 -31° | 270/14 -40° | 230/28 -51° | 230/42 -49° | 230/49 -46° |
| GKN | used from 50 nm out; 70 nm from the line | 160/20 | 220/20 -4° | 230/20 -11° | 230/20 -18° | 200/18 -32° | 210/24 -42° | 240/43 -47° | 230/49 -47° | 230/50 -46° |
| ORT | used from 199 nm out; 61 nm from the line | 250/24 -3° | 240/29 -10° | 240/31 -17° | 230/34 -31° | 220/31 -41° | 230/49 -47° | 230/52 -46° | 230/47 -45° | |
| JNU | used from 499 nm out; 253 nm from the line | 150/18 | 210/22 -3° | 240/32 -4° | 240/39 -10° | 250/59 -18° | 240/76 -28° | 240/83 -43° | 250/89 -52° | 250/74 -53° |
| ANN | used from 1147 nm out; 773 nm from the line | 210/8 | 240/13 3° | 270/21 1° | 280/26 -3° | 260/33 -15° | 270/42 -26° | 260/43 -41° | 280/38 -51° | 280/45 -58° |
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 |
|---|---|---|---|---|---|---|---|
| ANC Anchorage, AK | departure | no report just now | 151 ft | ||||
| BCV Birchwood, AK | 20 nm out, 11 nm northwest of the line | no report just now | 83 ft | ||||
| CYDM Ross River, | 499 nm out, 21 nm south of the line | no report just now | 2,314 ft | ||||
| CYVO Val-D'Or, | 2483 nm out, 11 nm northeast of the line | no report just now | 1,107 ft | ||||
| ASH Nashua, NH | 2902 nm out, 4 nm northwest 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 2,314 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, 2:00 pm EDT (18:00 UTC)
BOS has no terminal forecast; use the nearest airport that does.
Temporary flight restrictions on the line or within 25 nm of it
- 6/8889 Anchorage, AK, Tuesday, October 13, 2026 through Tuesday, October 13, 2026 Local on the route, at the departure end · a VIP movement · starts tomorrow · ZAN
- 6/8772 Anchorage, AK, Tuesday, October 13, 2026 through Tuesday, October 13, 2026 Local 3 nm from the route, at the departure end · security · starts tomorrow · ZAN
- 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 ANC 6:57 pm AKDT (02:57 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: Ted Stevens Anchorage International, General Edward Lawrence Logan International.