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About IONA JETS

Sustainable aviation information for charter requests

Environmental information can help clients ask more precise questions about a proposed charter, but it does not make a flight carbon neutral. IONA JETS transmits requests to participating vetted Broker Partners and does not operate its own SAF, book-and-claim, carbon-credit or offset program, calculate actual flight emissions or guarantee environmental outcomes.

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How to interpret a flight emissions estimate

A flight emissions figure is an estimate shaped by its methodology, system boundary and inputs. Distance alone cannot establish the emissions of a future charter because aircraft variant, routing, payload, fuel use, positioning sectors and operating conditions may differ from the assumptions. A passenger allocation also depends on the method used to distribute an aircraft-level result. Clients should request the calculation date, included greenhouse gases, units, data sources and treatment of non-CO2 effects, then retain the estimate as indicative information rather than a measurement of the confirmed flight.

  • Method and boundary: The ICAO Carbon Emissions Calculator illustrates a harmonized estimation method. A proposal should identify its own calculator, version, assumptions, gases, sectors and whether results represent passengers, cargo or the complete aircraft.
  • Inputs and uncertainty: Ask whether the calculation uses an aircraft type or exact variant, planned or great-circle distance, assumed load and positioning legs. Actual fuel burn and resulting emissions can differ after operation.
  • Comparisons require consistency: Two figures should be compared only when their boundaries, units, gases, allocation rules and assumptions are aligned. A lower estimate is not proof that a proposed operation will produce that outcome.

Distinguishing physical SAF from book-and-claim

Sustainable aviation fuel is not a single product with a universal emissions result. Any lifecycle claim depends on the feedstock, production pathway, certification, chain of custody, allocation method and baseline applied under the relevant framework. Physical supply means an eligible fuel quantity enters the aviation fuel system at an identified location; it does not establish that a particular aircraft consumed only that fuel. Book-and-claim separates physical delivery from an attributed environmental characteristic. Clients should require scheme-specific evidence and avoid describing either arrangement as eliminating a flight's exhaust emissions.

  • Physical supply: A proposal should identify the fuel supplier, location, quantity, blend information, sustainability certification and party entitled to make the claim. Availability, uplift and allocation remain subject to provider confirmation and applicable rules.
  • Book-and-claim: Request the registry, chain-of-custody model, serial or transaction reference, beneficiary, issue and retirement status, and safeguards against double claiming. It is an accounting arrangement, not proof of physical uplift on the requested flight.
  • Lifecycle evidence: ICAO publishes criteria and methodologies for CORSIA eligible fuels . Any stated reduction should identify the applicable pathway, lifecycle value, fossil baseline, certification scheme and authorized claimant instead of relying on a generic percentage.

Carbon credits do not erase flight emissions

A carbon credit is a separate environmental instrument, not a reduction in the fuel burned by the chartered aircraft, so the two should be assessed on different evidence. For a credit, review the issuing program, project methodology, vintage, additionality approach, monitoring, independent validation or verification, registry status and the rules addressing reversal and double counting. Cancellation or retirement documentation evidences a transaction. Any public claim should be confirmed by qualified advisers against the complete supporting evidence.

  • Keep quantities separate: The proposal should state the flight estimate, credit quantity and unit independently, including gases and conversion assumptions. Matching numerical quantities does not make the estimated flight emissions disappear or establish equivalence.
  • Check program eligibility: ICAO maintains a current list of CORSIA eligible emissions units for operator compliance. CORSIA eligibility is program-, scope- and period-specific and should not be presented as blanket approval of every voluntary client claim.
  • Retain transaction evidence: Request the project identifier, methodology, registry, vintage, serial numbers, quantity, status, retirement date and named beneficiary. Also confirm who may communicate the claim and whether another party could claim the same unit.

Questions to include in a charter request

Clients seeking environmental information should define the purpose: internal estimation, travel reporting, a physical SAF request, a book-and-claim purchase or carbon credits. The request should identify the reporting framework, geography, organizational boundary and evidence. Participating vetted Broker Partners independently decide whether to assess it and which operators, fuel suppliers or program providers to consult. Any proposal should distinguish estimated emissions, operational data, fuel documentation and separate instruments, while identifying the contractual parties, price, taxes, assumptions, exclusions and claim rights.

  • Define the objective: State clearly whether information is needed for internal planning, a corporate inventory, regulatory reporting or a public statement. Different purposes may require different documented methods, boundaries, assurance and professional review.
  • Ask for separated pricing: Request separate prices, taxes and terms for the flight, emissions estimate, physical SAF, book-and-claim attributes and carbon credits. Do not infer that one item is included because another appears in a proposal.
  • Review responsibilities: Read about the IONA JETS network model , identify every provider and obtain relevant documentation. The Client remains responsible for deciding whether environmental information supports its accounting, disclosure, procurement or legal requirements.

Frequently asked questions about charter sustainability information

These answers distinguish estimated flight emissions from physical SAF, book-and-claim attributes and carbon credits. They explain what documentation a Client may request and where responsibility sits, without treating any option as proof of carbon neutrality, guaranteed availability or a measured environmental result before accepting a proposal.

Yes. A Client may ask for an indicative estimate, and a participating vetted Broker Partner may decide to obtain or prepare information using a stated methodology. The result is not a measurement of the future flight. It can change with the aircraft, route, payload, positioning sectors, operating conditions, gases included and allocation rules. Request the calculator and version, calculation date, units, boundary, inputs and assumptions before using the figure for comparison, reporting or procurement decisions.

A Client may request information about physical SAF or a separate book-and-claim arrangement. Availability and participation are not guaranteed. Any proposal should distinguish physical supply from attributed environmental characteristics and identify the provider, fuel quantity, certification, lifecycle method, location or registry, chain of custody, beneficiary and claim status. Neither option means the aircraft has no exhaust emissions, and no generic reduction percentage should be used without the pathway-specific documentation and baseline supporting that particular claim.

No. IONA JETS does not operate an IONA JETS-owned SAF, book-and-claim, carbon-credit or offset program. It acts solely as a Swiss digital referral platform transmitting requests to participating vetted Broker Partners, who independently decide whether to respond and which providers to consult. IONA JETS does not calculate actual flight emissions, supply fuel, issue or retire credits, certify environmental instruments or guarantee their availability, quality, accounting treatment, regulatory acceptance or claimed result.

Review the responsible provider, methodology, boundary, gases, assumptions, price, taxes, certification, registry or chain-of-custody records, allocation and retirement status, beneficiary, claim rights and double-counting controls. Keep the flight estimate, fuel supply or attribute and carbon-credit transaction distinct. Rules differ by jurisdiction and intended use, including corporate inventories, regulated reporting and public marketing claims. Obtain qualified environmental, accounting or legal advice where needed; a proposal or certificate alone does not establish carbon neutrality or regulatory compliance.

IONA JETS acts solely as a Swiss digital referral platform connecting clients with independent air charter Broker Partners across private aviation, group charter and air cargo. IONA JETS is not an air charter broker, air carrier, airline or aircraft operator and does not own, lease, operate, schedule, dispatch, control or perform flights. Participating vetted Broker Partners independently decide whether to assess a request and prepare a proposal. Their participation and the receipt, number, timing, content or terms of proposals are not guaranteed. If a client selects a proposal, operator sourcing, the checks the selected Broker Partner applies to the proposed operator, the applicable contract and payment arrangements and the coordination of the confirmed flight and agreed third-party services with the responsible providers all fall within that broker's own responsibility and procedures. IONA JETS neither performs nor supervises those checks. Each confirmed flight is performed exclusively by the aircraft operator identified in the contractual documentation, under its own operating certificate, approvals, operational control, terms and insurance. IONA JETS reviews Broker Partners before network admission but does not directly certify, approve, select or verify every aircraft operator or downstream provider. Each Broker Partner, operator, authority and provider remains responsible for its own services, decisions, authorizations, insurance, personnel, equipment, contractual obligations and regulatory compliance. Information on this page is general and may change. It does not constitute a quote, booking confirmation, operational assessment or legal, regulatory, safety, environmental, tax or other professional advice. No aircraft, operator, service, response, proposal, price, saving, availability, schedule, performance, result or other outcome is promised or guaranteed. Clients must review the named contractual parties, scope, price, taxes, payment terms, change and cancellation conditions and supporting documents before acceptance. IONA JETS is not a party to the flight or third-party service contract unless expressly stated otherwise in writing. IONA JETS does not charge clients a platform fee for submitting a request, reviewing available proposals or selecting an option through the standard referral service. IONA JETS Business is a separate optional paid subscription. IONA JETS receives remuneration from a Broker Partner when a referred request results in a confirmed booking. Environmental information and options described on this page are general, may change and are not supplied, calculated, certified, verified or guaranteed by IONA JETS. IONA JETS does not operate an owned SAF, book-and-claim, carbon-credit or offset program and does not verify fuel batches, lifecycle values, registries, projects, credits, retirements, emissions estimates or environmental claims. An emissions estimate is not a measurement of an operated flight and depends on the stated methodology, boundary, gases, inputs and assumptions. Physical SAF supply, book-and-claim attribution and carbon credits are distinct arrangements. None means that a flight produces no exhaust emissions, is carbon neutral or has no climate impact. Availability, eligibility, certification, chain of custody, allocation, retirement, claim ownership, accounting treatment and prevention of double counting must be established by the responsible providers under the applicable framework. CORSIA requirements concern eligible operators and State-administered compliance; they do not automatically validate a voluntary claim made by a charter client. Clients must review all supporting records and obtain their own qualified environmental, accounting, regulatory, tax, consumer-protection or legal advice before relying on, reporting or publicly communicating any environmental information or claim. *Cashback is available only on eligible bookings and remains subject to the applicable Loyalty Program terms.