The U.S. aircraft register, updated daily
Plan a flight · Sun 9:41 pm EDT (01:41 UTC)

John F Kennedy International to Joslin Fld/Magic Valley Regional JFK → TWF

1,815 nautical miles (2,088 statute miles) west on a straight line, true course 287°, about 300° magnetic at the departure end (variation 13W). At 120 knots that is 15 h 39 min at the quickest height in today's winds (4,500 ft, a 4-knot headwind), arriving about 11:20 am MDT (17:20 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: 1 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 2E: thunderstorms (a convective SIGMET) up to 31,000 ft, moving from the southwest at 20 knots, until 10:55 pm EDT (02:55 UTC). Over the first 60 nm of the route.
    as issued
    WSUS31 KKCI 120055
    MKCE WST 120055
    CONVECTIVE SIGMET 2E
    VALID UNTIL 0255Z
    CT NY NJ PA DE MD AND NJ NY CT CSTL WTRS
    FROM 30NE SAX-30SSW HTO-30ESE EMI-50WSW HAR-30NE SAX
    AREA EMBD TS MOV FROM 22020KT. TOPS TO FL310.
  • SIGMET 3W: thunderstorms (a convective SIGMET) up to 31,000 ft, moving from the southwest at 40 knots, until 10:55 pm EDT (02:55 UTC). Over the route from 1396 to 1555 nm out.
    as issued
    WSUS33 KKCI 120055
    MKCW WST 120055
    CONVECTIVE SIGMET 3W
    VALID UNTIL 0255Z
    MT WY
    FROM 10WSW MLS-70E DDY-20N LAR-50E BPI-30NE BIL-10WSW MLS
    AREA TS MOV FROM 22040KT. TOPS TO FL310.
  • 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 459 nm of the route.
  • AIRMET TANGO 2W: moderate turbulence below 18,000 ft up to 13,000 ft. Over the first 100 nm of the route.
  • AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft. Over the route from 40 to 289 nm out.
  • AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 90 to 259 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). Over the route from 838 to 937 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 1226 to 1755 nm out.
  • AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the last 538 nm of the route.
  • AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 1386 to 1675 nm out.
  • 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 route from 1426 to 1655 nm out.
  • AIRMET ZULU 3C: moderate icing up to 22,000 ft. Over the last 329 nm of the route.
  • AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 1486 to 1785 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 JFK.

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 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 16 forecast points nearest it (JFK, AVP, PSB, BUF, CLE, MKG, GRB, DBQ, LSE, MCW, FSD, ONL, PIR, RAP, LND, PIH). A plus sign is a headwind, a minus sign a tailwind.

HeightAverage windHead- or tailwindTemperatureGround speedTime en routeArrival
4,500 ft210° at 9 kt+4 kt14 °C116 kt15 h 39 min11:20 am MDT (17:20 UTC)
6,500 ft230° at 11 kt+8 kt14 °C112 kt16 h 12 min11:53 am MDT (17:53 UTC)
8,500 ft230° at 13 kt+10 kt11 °C110 kt16 h 30 min12:11 pm MDT (18:11 UTC)
10,500 ft230° at 15 kt+12 kt6 °C108 kt16 h 48 min12:29 pm MDT (18:29 UTC)
12,500 ft230° at 17 kt+14 kt3 °C106 kt17 h 07 min12:48 pm MDT (18:48 UTC)
14,500 ft230° at 20 kt+17 kt-2 °C103 kt17 h 37 min1:18 pm MDT (19:18 UTC)
16,500 ft230° at 24 kt+20 kt-6 °C100 kt18 h 09 min1:50 pm MDT (19:50 UTC)
18,000 ft FL180240° at 26 kt+23 kt-9 °C97 kt18 h 43 min2:24 pm MDT (20:24 UTC)
24,000 ft FL240240° at 27 kt+24 kt-21 °C96 kt18 h 54 min2:35 pm MDT (20:35 UTC)
30,000 ft FL300250° at 35 kt+33 kt-35 °C87 kt20 h 52 min4:33 pm MDT (22:33 UTC)
34,000 ft FL340250° at 47 kt+43 kt-42 °C77 kt23 h 34 min7:15 pm MDT (01:15 UTC)
39,000 ft FL390250° at 56 kt+54 kt-49 °C66 kt27 h 30 min11:11 pm MDT (05:11 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
PointFrom3,0006,0009,00012,00018,00024,00030,00034,00039,000
JFKused from 0 nm out; 25 nm from the line140/43170/35 13°230/18 9°250/25 5°240/40 -7°230/50 -17°230/75 -31°230/78 -41°230/88 -53°
AVPused from 50 nm out; 26 nm from the line110/36190/34 13°230/11 8°230/16 4°230/26 -8°220/40 -19°230/73 -33°230/98 -41°230/87 -51°
PSBused from 150 nm out; 43 nm from the line260/13 13°220/12 8°220/11 4°230/27 -11°210/31 -21°220/73 -32°220/75 -40°230/66 -50°
BUFused from 249 nm out; 78 nm from the line170/19L/V 10°040/9 6°220/8 2°230/15 -11°220/33 -22°220/47 -35°230/55 -41°230/56 -50°
CLEused from 299 nm out; 62 nm from the line340/5320/13 14°300/12 8°310/10 2°310/14 -10°340/14 -23°320/27 -35°260/28 -40°250/36 -48°
MKGused from 449 nm out; 105 nm from the line250/5320/10 15°310/19 9°320/21 3°310/23 -10°330/37 -22°330/51 -38°320/44 -47°300/60 -49°
GRBused from 648 nm out; 89 nm from the line240/24260/18 16°270/20 11°290/14 4°280/24 -9°300/34 -21°310/51 -38°310/54 -48°300/71 -51°
DBQused from 698 nm out; 65 nm from the line220/23240/22 16°240/24 10°260/18 5°270/16 -8°290/27 -19°310/42 -35°320/55 -44°300/71 -52°
LSEused from 748 nm out; 45 nm from the line220/33250/29 17°250/15 9°260/12 6°280/21 -9°280/33 -20°300/43 -36°310/56 -45°300/79 -53°
MCWused from 847 nm out; 18 nm from the line200/35240/33 18°250/20 10°260/10 6°270/18 -8°260/28 -19°280/30 -34°290/49 -43°280/70 -54°
FSDused from 947 nm out; 63 nm from the line200/16220/20 17°240/26 13°230/19 6°240/25 -9°240/28 -20°250/39 -33°250/44 -43°260/63 -52°
ONLused from 1097 nm out; 63 nm from the line200/20 17°230/26 14°240/21 7°250/27 -9°260/32 -19°240/44 -34°240/56 -41°250/62 -51°
PIRused from 1147 nm out; 55 nm from the lineL/V 17°230/13 12°220/22 6°250/31 -9°250/34 -21°240/50 -35°230/61 -43°240/62 -51°
RAPused from 1246 nm out; 51 nm from the line120/15 12°180/22 11°220/26 5°230/35 -9°240/40 -22°240/50 -37°240/51 -41°240/47 -47°
LNDused from 1446 nm out; 91 nm from the line180/33 10°190/50 3°210/59 -9°200/50 -21°190/41 -34°230/55 -39°240/65 -47°
PIHused from 1645 nm out; 59 nm from the line270/10270/13 1°210/16 -2°200/56 -11°200/51 -23°200/68 -33°220/77 -37°230/73 -44°

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
JFK New York, NY departure no report just now 13 ft
MMU Morristown, NJ 30 nm out, 1 nm north of the line, tower no report just now 186 ft
ERI Erie, PA 299 nm out, 9 nm north of the line, tower no report just now 732 ft
DET Detroit, MI 429 nm out, 2 nm northeast of the line, tower no report just now 624 ft
MKE Milwaukee, WI 648 nm out, 2 nm southeast of the line, tower no report just now 728 ft
LNR Lone Rock, WI 748 nm out, 2 nm north of the line no report just now 717 ft
FSD Sioux Falls, SD 1037 nm out, 6 nm northeast of the line, tower no report just now 1,430 ft
ICR Winner, SD 1167 nm out, 8 nm south of the line no report just now 2,032 ft
HSR Hot Springs, SD 1326 nm out, 5 nm southeast of the line no report just now 3,150 ft
CPR Casper, WY 1456 nm out, 23 nm south of the line, tower no report just now 5,344 ft
PIH Pocatello, ID 1725 nm out, 11 nm northwest of the line, tower no report just now 4,451 ft
TWF Twin Falls, ID destination no report just now 4,153 ft

The highest airport on this list sits at 5,344 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At TWF when you get there the forecast at the estimated arrival, 11:20 am MDT (17:20 UTC)

TWF has no terminal forecast; use the nearest airport that does.

Temporary flight restrictions on the line or within 25 nm of it

  • 5/2811 NEW YORK, NY, Monday, October 20, 2025 through Tuesday, October 20, 2026 Local 3 nm from the route, at the departure end · security · until 20 October · ZNY
  • 6/8829 Youngstown, OH, Monday, October 12, 2026 through Monday, October 12, 2026 Local 18 nm from the route, 309 nm along the route · a VIP movement · today · ZOB
  • 6/8587 Youngstown, OH, Monday, October 12, 2026 through Monday, October 12, 2026 Local 18 nm from the route, 309 nm along the route · a VIP movement · today · ZOB

Daylight

Sunset at JFK 6:19 pm EDT (22:19 UTC), at TWF 7:00 pm MDT (01:00 UTC) (civil twilight ends 7:29 pm MDT (01:29 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 Northeast
Radar now, the Northeast · loop National Weather Service
Radar now, the central Great Lakes
Radar now, the central Great Lakes · 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: John F Kennedy International, Joslin Fld/Magic Valley Regional.