Updated Date:
Author: Nazca Lines Tour Editorial Team
Quick Summary: Every passenger on a Nazca Lines flight is weighed at check-in, and that is standard load-balancing practice for light aircraft rather than anything unusual. Operator thresholds vary widely — commonly 90 to 95 kg, sometimes 100, 108 or 113 kg — and passengers above them may be asked to buy an additional seat, typically around US$60–80 at Nazca. Declare your weight when you book rather than discovering the surcharge at the airfield, and bring your original passport, because photocopies are not accepted.
The weighing scale at the Nazca aerodrome catches a lot of travelers off guard. It should not. On aircraft this small, where and how the load sits changes how the plane handles, and the crew needs real numbers to distribute passengers properly.
The part that genuinely causes problems is not the scale — it is the surcharge. Operator thresholds differ, the extra seat is paid in cash on the day, and travelers who did not declare their weight when booking are the ones who end up negotiating at a counter in a language they may not speak. Here is how to avoid that.
Nazca overflights use light aircraft: a Cessna 207A typically carrying about six passengers, or a Cessna 208B Grand Caravan carrying around twelve. On aircraft of that size, weight and balance are not administrative details. They determine the aircraft’s centre of gravity, its takeoff performance and how it handles the repeated banking turns that make the geoglyphs visible.
So every passenger steps on a scale at check-in, and the crew assigns seats from the resulting numbers. You do not choose your seat on these flights. This has been standard practice on the Nazca route since around 2011 and is applied under Peru’s civil aviation framework, overseen by the Dirección General de Aeronáutica Civil.
It is worth saying plainly: this is a safety procedure, not a judgement. Every passenger is weighed, not just larger ones.
There is no single national number. Each operator sets its own limit, and the spread is wide enough to matter.
| Threshold commonly applied | Where you will see it | What happens above it |
|---|---|---|
| 90 kg (198 lb) | Several Nazca operators and agency listings | Extra seat may be required; notify before booking |
| 95 kg (209 lb) | Very common — the most frequently quoted figure | Additional seat paid at the airfield, often around S/204–273 (US$60–80) |
| 100 kg (220 lb) | Some operators apply a strict 100 kg cap | Contact the operator directly before booking |
| 108 kg (238 lb) | Some Nazca-departing terms | Surcharge around US$70 |
| 113 kg (250 lb) | Some Pisco-departing terms | Surcharge around US$165 |
| 136 kg (300 lb) | A handful of package operators | Additional seat must be reserved in advance |
Some operators also apply a combined limit for two travelers — around 180 kg for a pair is a figure that appears in practice.
One useful nuance: the surcharge is not always automatic. Several operators state that it depends on the rest of the manifest. If the aircraft happens to be carrying lighter passengers that morning, the crew can often balance the load without selling an empty seat, and no extra charge applies. If the aircraft is already loaded, it does.
That is why declaring your weight at booking is genuinely in your interest. It lets the operator build a manifest that works, rather than solving the problem at your expense on the morning.
You will not choose your seat. The crew assigns seats based on the weight distribution they need. But knowing how the cabins are laid out helps you set expectations.
If you have any say in it, ask for a rear seat on a Grand Caravan. Travelers consistently report better sightlines from the back.
This trips people up more often than the scale does.
You must present an original passport or national identity document to board. Photocopies are not accepted, and photographs on your phone generally are not either. Airport authorities require it, and operators are clear that without it you do not fly.
Arrive at the aerodrome around 45 minutes before your scheduled departure for registration and weighing. Some operators note that the boarding protocols themselves take roughly 30 minutes once you are checked in.
Bring cash in soles as well — the airport tax of around S/30 and the S/47 Nazca Lines tourist ticket are both collected at the airfield on the day.
Policies vary more here than anywhere else, so confirm with your specific operator rather than relying on a general rule.
If you are traveling as a family, ask about age rules, seat charges and whether the aircraft can accommodate your group’s combined weight in one flight. Splitting a family across two departures is a real possibility on a busy morning.
Weight and seating are the mechanical part. The rest of the morning is about timing.
Book the earliest slot you can. Arrive 45 minutes early with your original passport and soles in hand. Eat something light one to two hours before rather than a full meal or nothing — the banking turns are constant and even people who never get motion sick sometimes struggle.
If you are still working out how to reach the aerodrome, it sits roughly 4 km from Nazca’s Plaza de Armas, and most operators include hotel or bus terminal pickup within Nazca town. Our guide to getting to Nazca covers the approach from Lima, Ica and Arequipa, and Nazca Lines Tour is a practical option if you would rather have the flight, the transfers and the fee logistics explained in one place before you arrive — particularly useful if you are landing in Nazca off an overnight bus with no local orientation.
Why do they weigh you before a Nazca Lines flight?
Because the aircraft are small enough that passenger weight and its distribution genuinely affect how the plane performs. Crews use the actual figures to assign seats so the centre of gravity sits where it should, which matters especially on this route because the aircraft banks repeatedly and steeply so passengers on both sides can see the geoglyphs. It is routine aviation practice on light aircraft, has applied on the Nazca route since around 2011, and every passenger is weighed rather than only some.
What is the weight limit for a Nazca Lines flight?
There is no single figure — it depends on the operator. The most commonly quoted limit is 95 kg (209 lb), with 90 kg also widespread. Some operators apply a strict 100 kg cap, while others set the surcharge threshold higher, around 108 kg for Nazca departures and 113 kg for Pisco departures. A few package operators only require an extra seat above 136 kg. Because the spread is this wide, ask your specific operator in writing before booking rather than assuming a number you read elsewhere applies.
How much does the extra seat cost?
At Nazca, the additional seat is commonly quoted between about S/204 and S/273, roughly US$60–80, depending on your weight. Some operator terms list a flat US$70 surcharge for Nazca departures and around US$165 for Pisco departures, where the aircraft and flight are larger and longer. It is paid directly at the airfield, usually in cash, so bring soles. Note that the surcharge is not always applied — several operators will waive it if the rest of the manifest is light enough to balance the aircraft without an empty seat.
Can I choose my seat on a Nazca Lines flight?
No. Seats are assigned by the crew based on the weight distribution needed for that specific flight, and that assignment is not negotiable. The good news is that every passenger has window access on both the six-seat Cessna and the twelve-seat Grand Caravan — there is no middle seat without a view. The caveat is that on a Grand Caravan, four of the twelve seats have partially obstructed views because of the wing strut and wheels, and operator terms often state these cannot be changed, refunded or discounted. If you can ask for anything, ask for a rear seat.
Do I need my passport, or is a copy enough?
You need the original. Photocopies are not accepted, and this is enforced by airport authorities rather than being an operator preference — without your original passport or national ID document, you will not be permitted to board. Bring it with you to the aerodrome along with your booking confirmation and cash in soles for the airport tax and tourist ticket. If you are traveling with minors, check whether your operator requires additional documentation, since a minor travelling without a parent or legal guardian normally needs legalised authorisation.
Weight thresholds, surcharge amounts and seating policies are set individually by each operator and change without notice — the figures here reflect what operators and booking platforms have published recently, not a fixed standard. Whether a surcharge is applied can depend on the weight of other passengers on your specific flight, so quotes given at booking may differ from what you pay at the airfield. Age rules for children vary considerably between companies. The S/30 airport tax and S/47 tourist ticket are set by third parties. Operator status in the Nazca region has been unusually changeable through 2026 following regulatory action after the August crash near Nazca, which can affect which aircraft types and policies apply. Confirm your operator’s current weight limit, surcharge, documentation requirements and seating terms in writing before you pay.