Flight tools · Flight plan

Flight plan builder

Distance, true course, wind-corrected heading, groundspeed, ETE and fuel on a great-circle route.

Origin (ICAO/IATA)

John F. Kennedy International Airport · New York, United States

Destination (ICAO/IATA)

Boston Logan International Airport · Boston, United States

Alternate (optional)

Aircraft

TAS (kt)Fuel burn (gph)Cruise altitude (ft)

Wind from (°)Wind speed (kt)Reserve fuel (gal)

Magnetic variation (from your sectional)

East is least, west is best: add west variation to true heading, subtract east.

Nav log

KJFK → KBOS

New York → Boston · VFR

Distance

161.9 nm

True course

49°

True heading

44° (WCA -5°)

Mag heading

Add variation

Ground speed

121 kt

ETE

1:20

Fuel required

16.4 gal

Cruise alt

6,500 ft

Aircraft

Cessna 172 Skyhawk

Loading map…

Weather feed unavailable.

How the numbers are worked outThe same math the written test asks you to do by hand.

Distance and true course: great-circle between the two airports (nautical miles, degrees true).
Wind correction angle: WCA = arcsin(wind speed × sin(wind direction − true course) ÷ TAS). Wind from the left gives a negative angle: you turn left into it.
Groundspeed: TAS × cos(WCA) − wind speed × cos(wind direction − true course).
Magnetic heading: true heading plus west variation, minus east, read from your sectional.
Fuel: ETE × burn + the reserve you enter. VFR day reserve is 30 minutes at normal cruise (14 CFR 91.151).

Winds aloft from Open-Meteo, weather along the route from NOAA. A training aid: plan real flights with official sources.

Flight Plan Builder - Distance, Heading, Fuel | Rotate