The U.S. aircraft register, updated daily
Plan a flight · Sun 9:30 pm MDT (03:30 UTC)

Yampa Valley Airport to General Edward Lawrence Logan International HDN → BOS

1,622 nautical miles (1,866 statute miles) east on a straight line, true course 074°, about 064° magnetic at the departure end (variation 10E). At 120 knots that is 9 h 26 min at the quickest height in today's winds (39,000 ft, a 52-knot tailwind), arriving about 8:56 am EDT (12:56 UTC). Right now HDN is VFR, wind calm; BOS is IFR, wind from the east-northeast (060°) at 12 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: 81 flights in the DOT's last twelve reported months, the route's page.

The return flight

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 2C: thunderstorms (a convective SIGMET) up to 31,000 ft, moving from the southwest at 40 knots, until 10:55 pm MDT (04:55 UTC). Near the route, 80 nm along the route.
    as issued
    WSUS32 KKCI 120255
    MKCC WST 120255
    CONVECTIVE SIGMET 2C
    VALID UNTIL 0455Z
    NE CO WY
    FROM 40SE CZI-30WNW BFF-30SSE LAR-70NW LAR-40SE CZI
    AREA TS MOV FROM 22040KT. TOPS TO FL310.
  • AIRMET TANGO 1W: 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 first 90 nm of the route.
  • AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the first 229 nm of the route.
  • AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the first 169 nm of the route.
  • 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). Over the route from 229 to 667 nm out.
  • 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 last 637 nm of the route.
  • AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft. Over the last 338 nm of the route.
  • AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 1363 to 1532 nm out.
  • AIRMET ZULU 1C: moderate icing up to 25,000 ft. Over the last 249 nm of the route.
  • AIRMET TANGO 2W: moderate turbulence below 18,000 ft up to 13,000 ft. Over the last 179 nm of the route.

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 HDN.

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 14 forecast points nearest it (DEN, BFF, ONL, OMA, DSM, MCW, DBQ, MKG, CLE, BUF, SYR, ALB, BDL, BOS). A plus sign is a headwind, a minus sign a tailwind.

HeightAverage windHead- or tailwindTemperatureGround speedTime en routeArrival
3,500 ft240° at 16 kt−15 kt135 kt12 h 01 min11:31 am EDT (15:31 UTC)
5,500 ft240° at 14 kt−14 kt20 °C134 kt12 h 06 min11:36 am EDT (15:36 UTC)
7,500 ft250° at 13 kt−14 kt12 °C134 kt12 h 06 min11:36 am EDT (15:36 UTC)
9,500 ft260° at 13 kt−14 kt9 °C134 kt12 h 06 min11:36 am EDT (15:36 UTC)
11,500 ft250° at 14 kt−15 kt5 °C135 kt12 h 01 min11:31 am EDT (15:31 UTC)
13,500 ft260° at 16 kt−17 kt1 °C137 kt11 h 50 min11:20 am EDT (15:20 UTC)
15,500 ft260° at 19 kt−20 kt-4 °C140 kt11 h 35 min11:05 am EDT (15:05 UTC)
17,500 ft260° at 22 kt−23 kt-8 °C143 kt11 h 21 min10:51 am EDT (14:51 UTC)
18,000 ft FL180260° at 22 kt−23 kt-9 °C143 kt11 h 21 min10:51 am EDT (14:51 UTC)
24,000 ft FL240260° at 27 kt−28 kt-21 °C148 kt10 h 58 min10:28 am EDT (14:28 UTC)
30,000 ft FL300260° at 34 kt−35 kt-35 °C155 kt10 h 28 min9:58 am EDT (13:58 UTC)
34,000 ft FL340270° at 45 kt−45 kt-41 °C165 kt9 h 50 min9:20 am EDT (13:20 UTC)
39,000 ft FL390270° at 52 kt−52 kt-50 °C172 kt9 h 26 min8:56 am EDT (12:56 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
PointFrom3,0006,0009,00012,00018,00024,00030,00034,00039,000
DENused from 0 nm out; 102 nm from the line240/21 14°250/44 6°220/49 -8°220/49 -21°230/54 -30°240/57 -35°240/49 -45°
BFFused from 100 nm out; 68 nm from the line180/28220/33 15°210/31 7°230/32 -9°220/41 -21°220/40 -33°240/47 -36°250/54 -46°
ONLused from 299 nm out; 82 nm from the line210/31 20°230/27 13°230/18 7°220/19 -8°240/26 -20°250/44 -35°270/52 -39°260/57 -47°
OMAused from 448 nm out; 73 nm from the line220/47240/33 19°250/18 11°230/17 6°260/29 -8°250/33 -19°250/51 -33°260/61 -40°270/62 -49°
DSMused from 547 nm out; 74 nm from the line230/40250/33 17°250/18 12°240/17 5°260/28 -8°270/34 -19°260/41 -33°260/55 -41°270/62 -51°
MCWused from 597 nm out; 38 nm from the line220/44250/30 17°230/14 12°240/17 6°250/22 -8°270/29 -20°250/34 -34°260/52 -43°260/59 -51°
DBQused from 697 nm out; 37 nm from the line230/33250/30 16°280/15 9°260/15 5°260/21 -7°260/24 -20°250/37 -33°270/42 -43°280/63 -52°
MKGused from 846 nm out; 80 nm from the line260/22290/16 15°300/11 10°290/5 3°300/26 -9°300/32 -20°320/48 -36°320/61 -45°310/74 -53°
CLEused from 1095 nm out; 100 nm from the line340/7010/16 13°350/18 8°350/20 3°340/31 -10°340/46 -21°340/54 -37°330/62 -44°340/65 -49°
BUFused from 1194 nm out; 60 nm from the line320/10010/16 10°360/10 6°340/13 2°330/22 -11°300/25 -23°320/31 -38°300/29 -44°280/36 -50°
SYRused from 1343 nm out; 31 nm from the line280/13350/18 10°340/10 6°300/15 1°280/17 -12°270/16 -23°280/25 -38°250/40 -42°240/53 -50°
ALBused from 1443 nm out; 30 nm from the line120/9270/8 10°L/V 5°260/9 1°260/34 -10°250/42 -22°240/57 -35°240/70 -42°240/65 -50°
BDLused from 1542 nm out; 39 nm from the line120/24290/23 12°280/21 8°250/36 3°250/41 -11°230/48 -21°230/78 -32°230/96 -41°230/86 -52°
BOSused from 1592 nm out; 15 nm from the line110/20200/26 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

AirportWhereConditionsWindVisibilityCeilingElevationReported
HDN Hayden, CO departure VFR calm 10+ mi none 6,606 ft 8:56 pm MDT (02:56 UTC)
CYS Cheyenne, WY 119 nm out, 11 nm northwest of the line, tower VFR from the east (090°) at 6 knots 10+ mi none 6,159 ft 02:53 UTC
OKS Oshkosh, NE 229 nm out, 2 nm southwest of the line no report just now 3,394 ft
LCG Wayne, NE 478 nm out, 5 nm west of the line VFR from the north (350°) at 4 knots 10+ mi none 1,431 ft 03:15 UTC
SUX Sioux City, IA 498 nm out, 8 nm north of the line, tower VFR from the north-northwest (340°) at 3 knots 10+ mi none 1,098 ft 02:52 UTC
ALO Waterloo, IA 677 nm out, 7 nm south of the line, tower VFR from the south (180°) at 11 knots 10+ mi none 873 ft 02:54 UTC
MKE Milwaukee, WI 876 nm out, 1 nm northeast of the line, tower VFR Sky: a few clouds at 25,000 feet from the south-southwest (200°) at 9 knots 10+ mi none 728 ft 02:52 UTC
FNT Flint, MI 1055 nm out, 6 nm southeast of the line, tower marginal VFR Sky: overcast at 1,400 feet from the south-southwest (210°) at 3 knots 10+ mi 1,400 ft 782 ft 02:53 UTC
BUF Buffalo, NY 1284 nm out, 4 nm west of the line, tower VFR Sky: a few clouds at 5,500 feet, scattered clouds at 10,000 feet, a broken layer at 16,000 feet, a broken layer at 24,000 feet from the north (010°) at 3 knots 10+ mi 16,000 ft 726 ft 02:54 UTC
ROC Rochester, NY 1323 nm out, 14 nm north of the line, tower VFR Sky: scattered clouds at 400 feet, a broken layer at 12,000 feet from the southeast (130°) at 4 knots 10+ mi 12,000 ft 558 ft 02:54 UTC
ALB Albany, NY 1493 nm out, 8 nm northeast of the line, tower IFR Sky: overcast at 500 feet Weather: light rain, mist from the north-northwest (330°) at 5 knots 4 mi 500 ft 284 ft 03:20 UTC
BOS Boston, MA destination IFR Sky: a few clouds at 700 feet, a broken layer at 1,700 feet, overcast at 4,100 feet Weather: heavy rain, mist from the east-northeast (060°) at 12 knots 2.5 mi 1,700 ft 19 ft 11:10 pm EDT (03:10 UTC)

The highest airport on this list sits at 6,606 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, 8:56 am EDT (12:56 UTC)

Wind from the northeast at 8 knots, visibility 2 miles, light rain showers, mist, overcast at 300 feet low IFR

The whole forecast for BOS
  • From Sun 8:00 pm EDT (00:00 UTC): wind from the southeast at 4 knots, visibility 4 miles, heavy rain, mist, scattered clouds at 2,200 feet, a broken layer at 2,800 feet and more above
  • From Sun 10:00 pm EDT (02:00 UTC): wind from the east-southeast at 5 knots, visibility 3 miles, light rain, mist, overcast at 1,000 feet
  • From Sun 11:00 pm EDT (03:00 UTC): wind from the east at 6 knots, visibility 2 miles, light rain, mist, overcast at 800 feet
  • From Mon 2:00 am EDT (06:00 UTC): wind from the northeast at 8 knots, visibility 2 miles, light rain showers, mist, overcast at 300 feet
  • From Mon 9:00 am EDT (13:00 UTC): wind from the north at 7 knots, visibility 3 miles, mist, a broken layer at 800 feet
  • From Mon 1:00 pm EDT (17:00 UTC): wind from the north-northwest at 5 knots, visibility more than 6 miles, scattered clouds at 15,000 feet
  • From Mon 11:00 pm EDT (03:00 UTC): wind from the north-northeast at 5 knots, visibility more than 6 miles, scattered clouds at 4,500 feet
The forecast for HDN, the departure
  • From Sun 6:00 pm MDT (00:00 UTC): wind from the southwest at 14 knots, gusting to 24, visibility more than 6 miles, a few clouds at 8,000 feet, scattered clouds at 10,000 feet
  • At times between Sun 6:00 pm MDT (00:00 UTC) and 8:00 pm MDT (02:00 UTC): visibility 6 miles, light rain showers, a broken layer at 8,000 feet
  • From Sun 8:00 pm MDT (02:00 UTC): wind from the south at 13 knots, gusting to 26, visibility more than 6 miles, low-level wind shear, a few clouds at 5,000 feet, scattered clouds at 12,000 feet
  • From Mon 12:00 am MDT (06:00 UTC): wind from the south at 13 knots, gusting to 28, visibility more than 6 miles, low-level wind shear, a few clouds at 5,000 feet, scattered clouds at 10,000 feet
  • From Mon 7:00 am MDT (13:00 UTC): wind from the south at 9 knots, visibility more than 6 miles, scattered clouds at 4,000 feet, a broken layer at 5,000 feet
  • 30% chance between Mon 12:00 pm MDT (18:00 UTC) and 6:00 pm MDT (00:00 UTC): visibility 4 miles, light rain showers, overcast at 2,600 feet

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 17 nm from the route, at the destination end · drones kept away from a public gathering · starts Saturday 17 October · ZBW

Daylight

Sunset at HDN 6:33 pm MDT (00:33 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

Radar now, the southern Rockies
Radar now, the southern Rockies · loop National Weather Service
Radar now, the northern Rockies
Radar now, the northern Rockies · loop National Weather Service
Radar now, the upper Mississippi valley
Radar now, the upper Mississippi valley · loop National Weather Service
Radar, the whole country
Radar, the whole country · loop National Weather Service
Surface analysis now
Surface analysis now Weather Prediction Center
Forecast chart, 12 hours ahead
Forecast chart, 12 hours ahead Weather Prediction Center
Forecast chart, 24 hours ahead
Forecast chart, 24 hours ahead Weather Prediction Center

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: Yampa Valley Airport, General Edward Lawrence Logan International.