Aviation & Real-World Flying 7 min read

How do I plan a VFR cross-country flight?

Ian Stephens
In short

Plan a VFR cross-country flight: choose a safe route and altitude, assess weather, calculate headings, time and fuel, and prepare to divert.

In real-world aviation and flight simulation, you plan a VFR cross-country flight by selecting a suitable route, altitude and checkpoints; checking current charts, airspace, terrain, weather and NOTAMs; then calculating headings, groundspeed, time, fuel and aircraft performance. Finish with diversion options, personal weather limits and clear actions if conditions deteriorate.

For an actual flight, use current official aeronautical information, the aircraft's approved operating handbook and the rules for your jurisdiction. VFR weather minima, cruising levels, fuel reserves and flight-plan requirements differ between countries and airspace classes.

A practical VFR cross-country planning sequence

A sound cross-country plan works from broad feasibility down to individual route legs, rather than starting with a line drawn between two airports.

  1. Define the flight. Confirm the departure, destination, expected passengers and baggage, daylight available and aircraft limitations. Check that both aerodromes have suitable runways, operating hours, fuel and facilities.
  2. Complete the weather and operational briefing. Review observations, forecasts, winds aloft, pressure, visibility, cloud, precipitation, convection, icing risk and surface winds. Our guide to extracting wind, visibility and cloud information from a METAR explains the coded observation, but a METAR is not an en-route forecast. Check NOTAMs for closures, temporary restrictions, unserviceable navaids and other hazards; it also helps to understand which information comes from ATIS and which comes from NOTAMs.
  3. Draw a practical route. Consider controlled and restricted airspace, terrain, obstacles, built-up areas, water crossings, available diversion aerodromes and places where an emergency landing would be difficult. The shortest direct line is not automatically the safest or quickest usable route.
  4. Select checkpoints and altitude. Choose unmistakable visual features at useful intervals, then select a legal cruising altitude that provides terrain clearance while remaining below cloud and outside airspace you cannot enter.
  5. Prepare the navigation log. Record each leg's true track, distance, wind correction, heading, estimated groundspeed, elapsed time, fuel, altitude and relevant frequencies. Include climb and descent rather than treating the entire route as level cruise.
  6. Check aircraft performance. Calculate mass and balance, take-off distance, climb capability, cruise performance and landing distance using the approved aircraft data. Correct for pressure altitude, temperature, wind, runway surface, slope and aircraft mass where the handbook requires it.
  7. Plan the abnormal choices. Identify usable diversion aerodromes, minimum acceptable weather, fuel decision points and the action to take if you become uncertain of position. Record frequencies and any route segments where communications or navigation coverage may be limited.
  8. Update before departure. Recheck weather, NOTAMs, runway information, fuel and aircraft condition. File, activate or open a VFR flight plan where applicable, and amend or cancel the flight if the assumptions behind the plan have changed.

How do I choose a VFR route and checkpoints?

Choose a route that remains easy to follow visually, avoids unnecessary airspace complications and always leaves a safe response to weather, fuel or aircraft problems.

  • Use prominent features such as coastlines, large lakes, major road junctions, towns and distinctive terrain. A small village or isolated road may be much harder to identify from the air than it appears on a chart.
  • Space checkpoints roughly 10–15 minutes apart in a typical training aircraft, adjusting for visibility, speed and the number of usable features. Each checkpoint should confirm progress, not demand a large detour.
  • Prefer features that cross the route, such as a railway, river or motorway. These provide a clear indication that you have reached a particular point.
  • Mark limiting features beyond the route, sometimes called catching features, which reveal that you have flown too far.
  • Check every airspace boundary in three dimensions. Confusing an altitude shown above mean sea level with one expressed above ground level is a common and potentially serious error.

Do not rely on a single navigation method. Pilotage and dead reckoning should be backed up by suitable radio navigation or GPS, while still monitoring the aircraft's actual position. Our explanation of how GPS, VOR and other aircraft navigation systems support route verification covers those options in more detail.

How should I choose a VFR cruising altitude?

Select an altitude that satisfies terrain and obstacle clearance, VFR cloud separation, airspace restrictions, local cruising-level rules and aircraft performance at the same time.

Also consider winds aloft, turbulence, visibility, density altitude and the height of the cloud base along the whole route. If terrain rises into cloud or no legal altitude exists between obstacles and controlled airspace, change the route, departure time or flight decision rather than trying to squeeze through.

How do I calculate heading, time and fuel?

For each leg, measure true track and distance, apply the forecast wind to obtain wind-corrected heading and groundspeed, then calculate elapsed time and fuel burn.

The basic time calculation is ETE in minutes = distance in NM ÷ groundspeed in knots × 60. Cruise fuel is ETE in hours × planned fuel flow, but taxi, take-off, climb, descent, contingency, diversion and final reserve fuel must be accounted for separately as required.

Track and heading are not interchangeable. Track is the path over the ground; heading is where the nose points. Apply wind correction to the true track, convert the result using local magnetic variation and, when navigating by magnetic compass, apply the aircraft's compass deviation. A useful sanity check is that the corrected heading should point into the crosswind, not away from it.

Which calculation mistakes cause bad VFR plans?

  • Using surface wind for the cruise leg: obtain forecast wind for the planned altitude instead.
  • Reading wind direction backwards: aviation wind is reported as the direction from which it blows.
  • Using true airspeed as groundspeed: headwind or tailwind changes both the arrival time and cruise fuel required.
  • Planning with total fuel: use the aircraft's usable fuel and account for any operating limitations.
  • Treating reserve fuel as planned range: the flight should normally land with the required final reserve intact.
  • Assuming book performance without corrections: high temperature, elevation, aircraft mass, runway condition and wind can materially change take-off and climb performance.

Do I need to file a VFR flight plan?

A filed VFR flight plan is separate from the route stored in a GPS or simulator, and the requirement to file one depends on the country, route, border crossings and airspace involved.

Filing does not by itself authorise entry into airspace that requires a clearance. Activation, search-and-rescue monitoring, closure procedures and optional ATC traffic services also vary by jurisdiction, so include these actions in the departure and arrival checklist rather than assuming filing completes them automatically.

How do I practise the plan in a flight simulator?

Use the same route, weather, payload and fuel assumptions in the simulator, but treat its planning tools as a way to check your work rather than allowing automatic routing to make every decision.

A mapping utility can help you inspect terrain and airspace and build a simulator navigation log. Automatic routes may still cross unsuitable terrain, temporary restrictions or airspace that would require a real clearance, and the simulator's chart, scenery or navigation-data dates may not match current real-world publications.

For useful practice, retain the written navigation log, avoid watching the moving map continuously and compare actual time and position at every checkpoint. Recalculate the ETA and remaining fuel after any significant deviation, then practise diverting before weather or fuel reaches the limit you set during planning. Simulator data must never replace approved sources for an actual flight.

The plan is ready when you can state where you are going, how you will recognise each leg, what altitude and heading you need, how much fuel should remain, where you can divert and exactly which condition would make you delay, turn back or land elsewhere.

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