Empty Leg Flights: How They Work and How Safe They Are

A Citation XLS leaves London Luton (LTN) on a Friday morning with four passengers and lands in Nice (NCE) an hour and a half later. The passengers stay for the week. The aircraft is airborne again by early afternoon, heading back to base or on to its next confirmed booking with an empty cabin. That sector is an empty leg.

Empty legs are a by-product of one-way charter, not something anyone sets out to create. What you buy is the whole aircraft on somebody else’s flight plan: the operator has already decided where it goes and roughly when. The price is for the aircraft and not per passenger, so the cost per head falls as the group grows, up to the seat count in the cabin. Most of the disappointment comes from booking a leg against a fixed date, then hearing on Thursday that the client who created it has added a night in Nice.

Where empty legs come from

Every charter aircraft has a home base, a maintenance calendar and a diary of confirmed trips. Whenever those fail to line up, it flies without passengers. A jet that drops a client in Ibiza returns to base with nothing to do there. A Challenger 350 finishing a trip in Geneva (GVA) gets called to Farnborough (FAB) for a departure the next morning. An airframe due for a scheduled inspection flies to the maintenance organisation holding the slot, which is frequently in another country.

Crew duty limits drive some of these movements too. If tomorrow’s trip plus the positioning sector will not fit inside one legal duty period, the operator has to move the aircraft the night before, and that repositioning sector is an empty leg. None of those sectors earn anything until someone books them, so selling the leg turns a cost into revenue.

Why they are unpredictable

There is no forward schedule to publish, because there is no schedule. Availability follows other people’s travel, and it runs against the busy flows: everyone is flying London to Nice in July, so the empty legs come back the other way. If your trip goes against the season’s traffic, south to north on a Sunday in August, or Geneva out to London in February, you are shopping in the right direction. The same holds for Olbia and Palma in high summer, the Alps in ski season, Teterboro (TEB) to Palm Beach in winter, and Dubai to the Maldives.

Notice is short: some legs surface a week or two ahead, plenty appear inside seventy-two hours, and a few come up on the day when a client’s plans move. On a popular route the gap between an operator releasing a leg and it selling is measured in hours. If you have to confirm a trip four weeks out on fixed dates, ask us for a normal one-way charter quote instead.

What you give up

A leg squeezed between two confirmed charters is rigid at both ends, down to the specific airport, and a leg into Paris Le Bourget (LBG) is not a leg into Orly (ORY). A leg going home to base is a different animal. The operator wants the aircraft back tonight, so where it lands on the way is often negotiable. Ask, because it is frequently the difference between no and yes.

Departure time is set by whatever the aircraft has to do next, and operators will typically hold a slot for you by 30 to 60 minutes, no more. The aircraft type is whatever happens to be flying, so a couple hoping for a mid-size cabin may be offered a light jet, or a Global far larger than they need. Baggage allowance is whatever that aircraft can carry on that sector with the fuel it needs, which matters if you are travelling with golf clubs or skis.

Catering is ordered by the operator, not by you, with a cut-off usually the evening before. On a same-day leg you get whatever is already on board.

If the aircraft goes technical on the day, there is no spare. A charter bought in the normal way carries a recovery obligation on the operator; an empty leg does not, because there is no second empty leg waiting on your route. The realistic recovery is a scheduled service later that day, or a charter arranged at short notice.

Safety on an empty leg

An empty leg is flown by the same operator, under the same air operator’s certificate, on the same aircraft, by a crew trained and checked to exactly the same standard as on any other charter. Maintenance follows the airframe’s own programme and the regulator’s requirements, and crew duty and rest limits apply in the same way. Fuel planning, alternates and the captain’s authority over the flight are identical.

The real risk with empty legs is not the aircraft, it is who is selling it. Positioning flights get advertised as cost-shared seats by people who hold no certificate to carry you, and on those flights the insurance does not respond. Every leg we sell is a commercial flight on the operator’s AOC, with the tail number listed on that certificate. If a leg is offered to you anywhere else, ask whose AOC it is on and whether the aircraft is on it. A straight answer takes ten seconds.

The vetting on our side does not relax for a cheap sector. We work with operators carrying recognised third-party safety ratings of the kind ARGUS, Wyvern and IS-BAO publish, and we tell you which one an operator holds and at what stage or level. On an empty leg we check what we check on any trip:

• that the rating is current, and at what level or stage it sits
• the operator’s ops specs for that aircraft type and that route
• the crew’s recent hours on type

AeroJet Me is a broker. The operator holds the certificate and flies the aircraft, and we arrange the charter and check who is behind it.

What happens if the original charter moves

Sometimes the plan behind the leg changes. The client who created it reschedules, adds a night, changes the destination or cancels outright. When that happens the leg can be retimed by a few hours or rerouted to a different airport. Sometimes it is pulled completely, and a good operator tells the broker as soon as it knows.

If the operator withdraws or reroutes the leg, you get back in full everything you have paid, normally within five working days, or you move onto a replacement leg if we find one that works. It runs the other way as well: an empty leg is normally non-refundable once confirmed, because it comes off the market for you, and payment is due in full at booking, usually the same day.

Avoid a non-refundable hotel or a connecting ticket that only works if the leg flies. Keep a fallback ready: a scheduled service later the same day, or a standard charter quote you can trigger at short notice. If the trip has to happen on that date, book it as a charter and treat any empty leg you find as a bonus.

How to actually catch one

Regular empty leg flyers give the desk their city pairs and let the dates fall where the alerts land. A window beats a departure slot: “any Thursday to Sunday in the second half of March” produces results, “16 March, 09:00” almost never does.

What decides a contested leg is not paperwork but cleared funds: it goes to whoever settles first. Have the passenger list ready and a way to pay on the day, and expect a secure link from us for passport details rather than emailed scans. On a Nice or Geneva leg in season, confirming within the hour is the whole margin.

Widening the airport list is the other lever. For a London departure, taking Luton (LTN), Farnborough (FAB), Biggin Hill (BQH) and Stansted (STN) as they come will show you far more legs than holding out for one of them. Cannes Mandelieu (CEQ) works alongside Nice if the aircraft is light or midsize, since its runway is around 1,100 m and cannot take the big cabins, and Linate (LIN) works alongside Malpensa (MXP) when slots allow. Fewer bags and fewer passengers help too, because a light jet with four seats free comes up far more often than a Global with eleven.

Who ends up flying them

Empty legs work for people with soft dates: a second home in the south of France, a ski week that can start on Thursday or on Friday, a golf trip, a family joining someone who is already there, a larger group on the day a big cabin comes free. They are the wrong tool for a board meeting in Milan on Tuesday morning, for a medical transfer, and for anyone who needs a guaranteed cabin at a guaranteed airport.

Our empty leg page shows examples of the legs we see. Tell us the city pairs you care about and we will let you know when a leg appears on one of them.