General Edward Lawrence Logan International to Cyril E King Airport BOS → STT
1,475 nautical miles (1,697 statute miles) south on a straight line, true course 166°, about 181° magnetic at the departure end (variation 15W). At 120 knots that is 12 h 30 min at the quickest height in today's winds (6,500 ft, a 2-knot headwind), arriving about 1:44 pm AST (17:44 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: 600 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 E18E: thunderstorms (a convective SIGMET) up to 30,000 ft, moving from the southwest at 35 knots, until 2:55 am EDT (06:55 UTC). Over the route from 20 to 229 nm out.
as issued
WSUS31 KKCI 120455 MKCE WST 120455 CONVECTIVE SIGMET 18E VALID UNTIL 0655Z MA RI CT AND MA RI NY CSTL WTRS FROM 40E BOS-130SE ACK-170S ACK-50SE HTO-20NW PVD-40E BOS AREA EMBD TS MOV FROM 24035KT. TOPS TO FL300.
- AIRMET SIERRA 3E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the first 259 nm of the route.
- AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft. Over the first 60 nm of the route.
- AIRMET TANGO 2W: moderate turbulence below 18,000 ft up to 10,000 ft. Over the first 80 nm of the route.
- AIRMET TANGO 4W: 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 40 to 110 nm out.
- AIRMET TANGO 6W: strong surface winds (30 knots or more) (due to sustained surface winds greater than 30 knots). Over the route from 189 to 259 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 BOS.
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 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 5 forecast points nearest it (BOS, ACK, ORF, ILM, MIA). 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 16 kt | +4 kt | 116 kt | 12 h 43 min | 1:57 pm AST (17:57 UTC) | |
| 6,500 ft | 250° at 19 kt | +2 kt | 14 °C | 118 kt | 12 h 30 min | 1:44 pm AST (17:44 UTC) |
| 8,500 ft | 250° at 21 kt | +3 kt | 12 °C | 117 kt | 12 h 36 min | 1:50 pm AST (17:50 UTC) |
| 10,500 ft | 250° at 22 kt | +3 kt | 9 °C | 117 kt | 12 h 36 min | 1:50 pm AST (17:50 UTC) |
| 12,500 ft | 250° at 24 kt | +4 kt | 5 °C | 116 kt | 12 h 43 min | 1:57 pm AST (17:57 UTC) |
| 14,500 ft | 240° at 27 kt | +7 kt | 1 °C | 113 kt | 13 h 03 min | 2:17 pm AST (18:17 UTC) |
| 16,500 ft | 240° at 30 kt | +9 kt | -3 °C | 111 kt | 13 h 17 min | 2:31 pm AST (18:31 UTC) |
| 18,000 ft FL180 | 240° at 33 kt | +11 kt | -6 °C | 109 kt | 13 h 32 min | 2:46 pm AST (18:46 UTC) |
| 24,000 ft FL240 | 230° at 40 kt | +17 kt | -17 °C | 103 kt | 14 h 19 min | 3:33 pm AST (19:33 UTC) |
| 30,000 ft FL300 | 230° at 50 kt | +26 kt | -31 °C | 94 kt | 15 h 41 min | 4:55 pm AST (20:55 UTC) |
| 34,000 ft FL340 | 220° at 56 kt | +34 kt | -41 °C | 86 kt | 17 h 09 min | 6:23 pm AST (22:23 UTC) |
| 39,000 ft FL390 | 230° at 59 kt | +30 kt | -52 °C | 90 kt | 16 h 23 min | 5:37 pm AST (21:37 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| BOS | used from 0 nm out; 25 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° |
| ACK | used from 50 nm out; 26 nm from the line | 230/29 | 270/37 16° | 270/38 10° | 270/40 4° | 240/46 -8° | 230/52 -17° | 240/74 -31° | 240/83 -41° | 240/91 -53° |
| ORF | used from 448 nm out; 388 nm from the line | 250/24 | 230/32 11° | 220/37 10° | 220/37 6° | 230/47 -5° | 230/62 -17° | 220/89 -30° | 220/93 -40° | 230/77 -51° |
| ILM | used from 698 nm out; 562 nm from the line | 270/22 | 270/23 11° | 260/35 10° | 240/41 6° | 240/49 -5° | 240/61 -16° | 230/74 -30° | 220/79 -40° | 230/71 -51° |
| MIA | used from 947 nm out; 732 nm from the line | 150/7 | 140/5 17° | 160/5 14° | L/V 9° | 230/8 -5° | 230/8 -17° | 150/11 -32° | 150/25 -41° | 180/29 -51° |
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 |
|---|---|---|---|---|---|---|---|
| BOS Boston, MA | departure | no report just now | 19 ft | ||||
| MVY Vineyard Haven, MA | 60 nm out, 3 nm east of the line, tower | no report just now | 66 ft | ||||
| STT Charlotte Amalie, VI | destination | no report just now | 23 ft |
The highest airport on this list sits at 66 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At STT when you get there the forecast at the estimated arrival, 1:44 pm AST (17:44 UTC)
STT has no terminal forecast; use the nearest airport that does.
Temporary flight restrictions on the line or within 25 nm of it
- 6/8802 Foxborough, MA, Saturday, October 17, 2026 through Sunday, October 18, 2026 UTC 14 nm from the route, at the departure end · drones kept away from a public gathering · starts Saturday 17 October · ZBW
- 6/2698 VIEQUES, PR, Monday, January 19, 2026 through Friday, December 18, 2026 UTC 20 nm from the route, at the destination end · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · until 18 December · ZSU
Daylight
Sunset at BOS 6:07 pm EDT (22:07 UTC), at STT 5:59 pm AST (21:59 UTC) (civil twilight ends 6:21 pm AST (22:21 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: General Edward Lawrence Logan International, Cyril E King Airport.