What happens in the first minutes of a diversion
A diversion compresses hours of trip planning into minutes. The crew selects an airport, ATC works the flight toward it, and on the ground a handler that may never have seen the aircraft before has to receive it: parking, ground power, stairs, fuel and access for crew and passengers. If nobody coordinates that arrival, the aircraft can land at an airport where no one is expecting it, with passengers on board and no confirmed services.
LFS works diversions as live trips. Once the desk is advised of a diversion — by the operator, the crew or the handling partner at the planned destination — a named coordinator contacts the diversion airport, confirms a handler can accept the aircraft, and starts the checklist: parking stand, fuel if needed, customs and immigration position for international arrivals, crew transport and hotels if the stay becomes overnight. The crew keeps flying the aircraft; the desk builds the ground plan around them.
Common diversion causes and what each one needs on the ground
Weather is the most frequent cause: destination below minima, a closed runway, or a storm system sitting over the field. Technical diversions follow a caution or a system fault and usually need engineering access on arrival. Medical diversions need an ambulance meeting the aircraft and a fast path through border formalities. Airport closures, security events and congestion at the destination make up the rest. Each cause changes what the ground plan must prioritise.
A weather diversion may only need fuel and a two-hour turnaround before continuing. A technical diversion can become an AOG event lasting days, with engineers and parts to move. A medical diversion is measured in minutes at the aircraft door. The desk scopes the likely stay with the operator early, because the difference between a quick tech stop and an overnight stay changes which services are worth arranging and which can wait.
Permits and border formalities at an unplanned airport
An aircraft that diverts into a country it was never scheduled to enter can trigger landing permit, customs and immigration requirements that nobody has prepared for. Many states have published provisions for genuine emergency and technical diversions, but the detail varies: some require post-arrival notification, some require a permit application even for a non-traffic technical stop, and some treat passengers disembarking very differently from passengers staying on board.
LFS checks the diversion state's requirements as the plan forms and files what is needed through the same permits desk that handles planned overflight and landing permits. Approval always remains with the relevant authority — no coordinator can guarantee a permit outcome — but a complete, correctly routed application is far faster than one started from scratch after landing. Where passengers will disembark, visa and entry requirements are flagged to the operator before doors open, not after.
Fuel, handling and onward planning from the diversion field
Getting on the ground is only half the problem. The aircraft still has to reach its destination, and the diversion airport becomes an unplanned technical stop: fuel uplift, a handler for the departure, possibly a new flight plan and updated slots at the original destination. If the diversion field is small, fuel may be limited or unavailable at short notice, and the desk may plan a second short hop to a better-served airport instead of waiting.
The desk requests fuel and handling with realistic timings and keeps the operator informed of what is actually confirmed versus what is still pending. A fuel truck that is 'on its way' is not the same as a confirmed uplift time. Where the original destination's slot or parking window has been missed, the downstream arrangements are renegotiated at the same time, so the aircraft does not arrive to find its stand and handler released.
Crew duty, passengers and the human side of a diversion
Diversions consume crew duty time quickly. A crew that left base legal for the planned sector can run out of hours sitting on a diversion ramp. The desk monitors the duty picture with the operator, books crew hotels and transport when rest becomes necessary, and arranges positioning crew where the operator decides to continue with fresh crew. These decisions belong to the operator; the desk makes sure the logistics are ready when the decision is made.
Passengers experience a diversion as confusion: an unannounced airport, no information, no onward plan. For business aviation the principal's schedule is usually the whole point of the flight. The desk arranges lounge or terminal access where available, onward ground transport, and — where the trip cannot continue by air — works with the operator on alternatives. Clear, honest information passed through the operator to the passengers is part of the service, not an extra.
Planning for diversions before they happen
The best diversion support is arranged before departure. Every international trip LFS plans includes a review of realistic alternates and diversion fields along the route: where the aircraft can actually be received, where fuel and handling exist at the relevant hours, and which airports impose curfews or prior-permission requirements that make them poor diversion choices. That review means a diversion is a change of plan, not a crisis.
Operators who fly the same corridors regularly benefit from standing arrangements: handlers briefed at likely diversion fields, fuel agreements that extend to alternates, and a desk that already knows the aircraft and the crew's preferences. If your operation wants that level of preparation, send your typical routes and aircraft through the request form and the desk will scope what standing diversion cover would look like.
What the desk needs when you call
A diversion call is faster when the right information arrives together. The most useful first message contains the aircraft type and registration, the diversion airport or the options under consideration, the reason in general terms, passenger and crew numbers, fuel state or endurance if relevant, and how long the crew expects to be on the ground. None of this needs to be perfect — the desk will fill gaps — but each item removes a phone call from the critical path.
If the diversion is still being decided, say so. The desk can prepare at two candidate airports in parallel and hold both plans until the crew commits, which costs nothing compared to starting cold after touchdown. Operators with an existing trip file at LFS start ahead: the desk already holds the aircraft details, the crew contacts and the passenger manifest structure, so the diversion plan builds on the planned trip rather than replacing it.
After the diversion: records and recovery
When the aircraft finally departs, the diversion is not quite finished. The operator's records need what happened: actual times, the services used, the costs incurred and any incidents on the ground. The desk closes out the event with a summary of what was arranged and confirmed, which feeds the operator's own reporting and any insurance or customer conversations that follow.
Recovery also means the rest of the trip. A diverted aircraft usually has a downstream schedule — the next leg, the next passenger, the crew's planned rest — and the desk re-aligns those arrangements rather than leaving the operator to discover the knock-on effects one by one. The measure of good diversion support is not only how the unplanned stop went, but how little of the original trip was lost to it.
Operational planning questions
Who decides to divert the aircraft?
Always the pilot in command. LFS never directs a diversion. Once the decision is made or being considered, the desk coordinates everything on the ground at the diversion airport so the crew can focus on flying.
Can LFS arrange handling at an airport with no prior agreement?
Yes, in most cases. The desk contacts handlers at the diversion field directly and confirms acceptance, parking and services. At some airports handling or landing permission requires authority involvement, which takes longer and cannot be guaranteed.
What about passengers and crew visas at an unplanned destination?
The desk checks the entry position for the diversion state and flags requirements to the operator before passengers disembark. Some states offer flexibility for genuine diversions; others do not. The operator remains responsible for passenger documentation.
How fast can the desk respond to a diversion call?
The LFS duty desk operates 24/7/365 and treats a diversion as an immediate priority. How quickly each service is confirmed depends on the airport, the hour and local requirements — the desk reports what is confirmed and what is still pending rather than guessing.
Does diversion support cost extra on a planned trip?
Diversion handling is quoted per event because the services depend on the airport and the length of stay. For trips LFS has planned, the desk already holds the aircraft and crew details, which speeds the response considerably.
Can the desk prepare at more than one airport while the crew decides?
Yes. Where the crew is weighing two diversion options, the desk can prepare handling and fuel at both and hold the plans until the crew commits, so no time is lost once the decision is made.
What happens to the rest of the trip after a diversion?
The desk re-aligns the downstream schedule — the next leg, slots, handlers, crew rest and passenger arrangements — so the knock-on effects are managed rather than discovered one by one.
Operational references
Reviewed 23 October 2026. Current AIPs, NOTAMs, authority decisions and written provider acceptance govern the actual flight.
Send your operational requirements
Provide your route, aircraft details, UTC schedule and required services. LFS will review the request and confirm the proposed coordination scope, documentation and commercial terms. Acceptance remains with the relevant authority, airport and service provider.
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