Terms of service

Last updated: July 14, 2026

Paid booking is currently paused. Live search and planning may be available, but ticket purchase opens only after all-in pricing and seller-of-travel readiness gates are complete.

These Terms of Service (“Terms”) govern your use of FlightSweeper, a product of FinSync LLC, doing business as Raintree Technology (“FlightSweeper,” “we,” “us”). By accessing or using FlightSweeper, you agree to these Terms. If you do not agree, do not use the service.

FlightSweeper is primarily intended for use by U.S. travelers booking travel from within the United States. If you access the service from outside the United States, these Terms still apply in full, and you do so voluntarily and at your own risk.

1. Who we are and what we do

FlightSweeper is a travel booking intermediary. We help you discover and purchase airfare from third-party airlines. FlightSweeper Connect lets an AI client authorized by the account owner search live flight inventory, prepare a hosted checkout link, and retrieve owner-scoped booking status. Connect is flight-only and does not expose live hotel or stay booking inventory. We are not an airline. We do not operate flights, own aircraft, or issue tickets in our own name. FinSync LLC, doing business as Raintree Technology and operating FlightSweeper, is the merchant of record for the customer payment collected through Duffel Payments. The exact card-statement descriptor is disclosed before payment. Duffel provides the payment infrastructure; the collected amount, net of payment costs, funds the Duffel balance used to pay the airline or travel supplier. FlightSweeper retains its disclosed service fee and does not treat passenger airfare as service-fee revenue. When you book through FlightSweeper, the transportation contract is between you and the operating airline. The airline's conditions of carriage and fare rules govern the ticket, including changes, cancellations, no-shows, schedule changes, baggage, and refunds.

2. Pricing and fare display

Fares displayed on FlightSweeper are sourced live from our supply partners. Prices, availability, taxes, fees, and fare rules can change between the moment a fare is displayed and the moment a ticket is issued. The only price you authorize is the refreshed all-in total shown on the hosted checkout immediately before payment. Before collecting payment, we refresh the live offer and show that total. If the fare or mandatory total changes, payment is blocked until you review the new amount.

Agent, MCP, API, chat, or preview outputs are not binding quotes unless and until the selected offer is refreshed and confirmed on a FlightSweeper-hosted checkout page. Do not treat old agent messages, cached tool responses, screenshots, or exported recommendations as current prices. Stay or hotel functionality is not a live bookable Connect surface unless and until FlightSweeper provides provider-backed rate, tax, availability, and cancellation data in a hosted review flow.

3. Service fee

Explorer bookings include a FlightSweeper service fee equal to 2% of the airline fare, rounded to the nearest cent, with a $9 minimum and $29 maximum per booking. This fee is ours and is shown separately from the airline fare, taxes, mandatory carrier charges, flight booking supplier cost, and payment processing cost. Every mandatory component is included in the more-prominent all-in total before payment.

A checkout link created by FlightSweeper Connect or any AI client is only an invitation to review a refreshed offer. It does not itself charge your card, issue a ticket, or guarantee that the fare will remain available.

• If ticketing fails, no completed ticket is issued; any airline/supplier fare authorization is released or refunded by the payment processor/supplier per their rules, and the FlightSweeper service fee is refunded automatically.
• Once a ticket has been issued, the service fee is non-refundable except under the eligible 24-hour cancellation policy or where otherwise required by law.
• A paid-plan service-fee waiver applies only when one remains on the account. It is restored when ticketing fails or an eligible booking is fully unwound. Mandatory supplier and payment costs are not waived.

Because FinSync LLC is the merchant of record for the payment it collects, contact FlightSweeper about a duplicate charge, billing error, failed ticketing, or refund due on that payment. Contacting us first may allow faster resolution, but nothing in these Terms limits rights you have under applicable law or card-network rules.

See our Refund Policyfor full details, including FlightSweeper's 24-hour cancellation policy for eligible US itineraries.

Paid ticket booking is available only where FlightSweeper is authorized to offer booking services. You agree that the purchaser residence and billing information you provide is accurate. FlightSweeper may cancel or refuse a booking if the transaction appears to originate from, or be billed to, an unsupported jurisdiction.

4. Airline rules govern the ticket

After a ticket is issued, the airline's fare rules control. This includes refund eligibility, change fees, cabin upgrades, name corrections, baggage, schedule changes, irregular operations, and involuntary refunds. Checkout remains unavailable unless we can display both the refund and change conditions returned for the selected offer. The airline's published rules remain authoritative. For schedule changes, cancellations, or operational refunds, we will forward available airline notices, explain the options communicated to us, and process a refund when one is due on a payment for which we are merchant of record.

5. Airline and fare coverage

We do not guarantee that every airline, every fare class, or every routing is represented in our search results. Some carriers, including Southwest Airlines, do not distribute fares through third parties and can only be booked directly. Other airlines or specific fares may be excluded due to distribution agreements, technical limits, or supply-side outages. Product surfaces describe current availability in general terms.

6. Search, discovery, and agent surfaces; AI disclaimer

Route sweep, destination boards, and chat suggestions are decision aids built from live search inputs, supplier availability, and product logic. They are not real-time operational data, not delay dashboards, and not a substitute for airline information. Do not rely on them for flight status, gate, or schedule decisions.

Chat-based search and AI-client-assisted booking rely on automated and AI systems. AI may hallucinate or misinterpret information, or make errors in recommendations. AI-generated outputs are informational only and do not constitute professional travel, legal, or financial advice. You are solely responsible for evaluating the suitability of any travel product or itinerary suggested by AI. The binding terms of any booking are the operating airline's fare rules and the refreshed all-in total authorized immediately before payment.

FlightSweeper does not support blind autonomous purchases. An AI client may search, compare, refresh, create an approved watch, and prepare a hosted checkout link, but the traveler must review and confirm the refreshed quote, passenger details, fee disclosure, cancellation terms, and payment on FlightSweeper before money moves or a ticket is issued.

If you connect FlightSweeperto a supported third-party AI or MCP client, that client's own terms, privacy practices, logs, memory, and security controls also apply. Do not enter raw payment card information into agent prompts, transcripts, custom tools, or support notes. Card details must be entered only through approved hosted payment surfaces.

If you use or build on a FlightSweeper AI connection, you are responsible for your application, prompts, approval flows, and user-facing disclosures. You must not misrepresent sample, cached, expired, or planned results as live bookable fares; must preserve quote freshness and expiry information where provided; must obtain end-user consent before creating checkout links; and must not imply that FlightSweeper supports autonomous card charges, white-label checkout, unlimited search, general webhook delivery, live stays or hotels, or automatic cancellation, refund, or rebooking.

7. Traveler documentation and entry requirements

It is your responsibility — not ours — to obtain and carry valid travel documents. This includes a valid passport, any required visas or electronic travel authorizations, required vaccinations or health documentation, and any other entry requirements of your origin, transit, and destination countries. Key points:

• Names on tickets must exactly match the names on the traveler's government-issued ID or passport. Name corrections after a ticket is issued may be limited, costly, or not permitted by the airline.
• Domestic US travel (REAL ID): The U.S. TSA and DHS require a REAL ID-compliant ID or acceptable alternative (passport, military ID, permanent resident card) to pass TSA security checkpoints. See dhs.gov/real-id.
• UK Electronic Travel Authorization (ETA): U.S. citizens visiting the UK — including for short visits or transit — require an ETA unless they hold a UK visa or UK/Irish residency.
• Many countries will not admit travelers whose passport expires within six months of entry. Many require a minimum number of blank passport pages.
• Check current travel advisories at travel.state.gov and health information at cdc.gov before traveling internationally.

FlightSweeper is not responsible for denied boarding, denied entry, missed flights, or additional costs resulting from improper or missing documentation. You assume full responsibility for complying with documentation and entry requirements.

8. Flight delays; baggage; hazardous materials

Delays and missed connections. FlightSweeper is not responsible for flight delays, cancellations, or missed connections caused by airline operational decisions, weather, air traffic control, or any other circumstance. It is your responsibility to check in on time for your flight. We strongly recommend travel insurance that covers flight delays and cancellations.

Baggage and ancillary fees. FlightSweeperdoes not set, collect, or control airline baggage fees, seat assignment fees, or other ancillary charges. These fees are charged directly by the airline and are subject to change without notice. Check the airline's website directly for current baggage policies and fees.

Hazardous materials.Federal law prohibits the carriage of hazardous materials aboard aircraft in your luggage or on your person. A violation can result in five years' imprisonment and penalties of $250,000 or more (49 U.S.C. 5124). Hazardous materials include explosives, compressed gases, flammable liquids and solids, oxidizers, poisons, corrosives, and radioactive materials. There are special exceptions for small quantities of medicinal and toilet articles and certain smoking materials. See tsa.gov for the complete list.

9. Account and acceptable use

You are responsible for safeguarding your account credentials and for all activity under your account. You agree not to: (a) use the service for fraud, money laundering, or unauthorized booking on behalf of others without their consent; (b) scrape, mass-query, or otherwise abuse the platform; (c) reverse engineer or attempt to circumvent rate limits or security controls; (d) use the service in violation of any sanctions, export, or travel restriction laws. We may suspend or close accounts that violate these terms.

FlightSweeper Connect, MCP, API, and preview access may be rate-limited, modified, suspended, or withdrawn at any time, especially to protect supplier quotas, fare integrity, payment safety, or platform security. You may not resell access, expose account-scoped tools to unauthorized users, remove ownership checks, or use cached travel results as if they were fresh live inventory.

10. Intellectual property

The FlightSweeper name, logo, software, and content are owned by FinSync LLCor licensed to us. Airline names, logos, and marks shown on FlightSweeper are the property of their respective owners and are used under nominative fair use to identify the carrier whose fares we display. No endorsement or partnership is implied unless explicitly stated.

11. Trip Pass and legacy Annual Pro

Trip Pass is a non-renewing 30-day purchase. Annual Pro is not available for new purchase during the July 14–October 12, 2026 launch plan; existing subscribers retain their disclosed legacy terms. See our Paid Plan Terms.

AI-client pages may describe a planned connection before client or directory approval. Such pages do not guarantee installation availability, tool uptime, search volume, or directory acceptance. Browser-only connectors are unsupported unless explicitly listed.

12. Referral program

Account credit earned through the referral program is governed by our Referral Program Terms.

13. Disclaimer of warranties

FlightSweeperis provided “as is” and “as available.” To the maximum extent permitted by law, we disclaim all warranties, express or implied, including merchantability, fitness for a particular purpose, and non-infringement. We do not warrant that the service will be uninterrupted, error-free, or that any specific fare or itinerary will be available.

14. Limitation of liability

To the maximum extent permitted by law, FinSync LLC's aggregate liability arising out of or relating to these Terms or your use of FlightSweeper is limited to the total service fees you have paid to us in the twelve months preceding the event giving rise to the claim. This cap is on fees paid to us, not on the airline fare or any third-party charges. We are not liable for indirect, incidental, consequential, special, or punitive damages, or for airline operational decisions such as delays, cancellations, missed connections, denied boarding, baggage handling, or schedule changes.

15. Indemnification

You agree to indemnify and hold harmless FinSync LLC and its officers, employees, and agents from any claim, loss, or expense arising from your misuse of the service, your breach of these Terms, or your violation of any law or the rights of a third party (including airlines).

16. Governing law and venue

These Terms are governed by the laws of the State of California, without regard to its conflict-of-laws rules. Subject to the arbitration clause below, any action that cannot be arbitrated will be brought exclusively in the state or federal courts located in California, and you consent to personal jurisdiction there.

17. Binding arbitration

Please read this section carefully — it affects your legal rights.

You and FinSync LLC agree that any dispute, claim, or controversy arising out of or relating to these Terms or FlightSweeper(a “Dispute”) will be resolved by binding individual arbitration administered by JAMS under its Streamlined Arbitration Rules, rather than in court, except that you may bring a qualifying claim in small-claims court. The seat of arbitration is California. The arbitrator's decision is final and may be entered as a judgment in any court of competent jurisdiction.

Opt-out: You may opt out of this arbitration agreement within 30 days of first accepting these Terms by emailing legal@raintree.technologywith the subject line “Arbitration Opt-Out” and including your account email.

18. Class action waiver

You and FinSync LLC agree that each may bring claims against the other only in your or its individual capacity, and not as a plaintiff or class member in any purported class, collective, or representative proceeding.The arbitrator may not consolidate more than one person's claims and may not preside over any form of representative or class proceeding. If this waiver is found unenforceable in a given jurisdiction, the unenforceable portion will be severed and the rest of these Terms (including the arbitration clause) will remain in effect to the extent permitted by law.

Nothing in this section waives any right to seek public injunctive relief to the extent that right cannot be waived under applicable law. If a claim for public injunctive relief is asserted, that claim is severed and stayed pending binding arbitration of all other claims, and is heard in a court of competent jurisdiction after the arbitration concludes.

19. Changes to these Terms

We may update these Terms from time to time. Material changes will be communicated by email or in-product notice at least 30 days before they take effect, except for changes required by law or to address security issues. Continued use after the effective date constitutes acceptance.

20. Termination

You may stop using FlightSweeper at any time. We may suspend or terminate accounts for breach of these Terms or for any lawful reason on reasonable notice. Sections intended to survive termination (including liability, arbitration, IP, and indemnification) will continue to apply.

21. Force majeure

FlightSweeper is not liable for any failure or delay in performance caused by events beyond its reasonable control, including acts of God, severe weather, natural disasters, epidemics or pandemics, war, terrorism, civil unrest, labor disputes or strikes, government action or travel restrictions, airline or supplier insolvency or failure, and outages of payment processors, telecommunications, or other third-party infrastructure.

22. Contact

FinSync LLC (d/b/a Raintree Technology)
c/o ZenBusiness Inc. (Registered Agent), 2520 Venture Oaks Way, Suite 120, Sacramento, CA 95833
Email: legal@raintree.technology

23. Seller of travel disclosure

FinSync LLC d/b/a Raintree Technology operates FlightSweeper. Business address: c/o ZenBusiness Inc. (Registered Agent), 2520 Venture Oaks Way, Suite 120, Sacramento, CA 95833. Business phone: (650) 442-7029. Email: legal@raintree.technology. FinSync LLC is registered as a California Seller of Travel (CST 2172984-70), valid from July 15, 2026 through July 14, 2027. Registration as a seller of travel does not constitute approval by the State of California. This transaction is covered by the California Travel Consumer Restitution Fund (TCRF) if FinSync LLC was registered and participating in the TCRF at the time of sale and the passenger is located in California at the time of payment. Eligible passengers may file a TCRF claim if owed a refund of more than $50 for transportation or travel services that FinSync LLC failed to forward to a proper provider or failed to refund when required. The maximum TCRF payment to any one passenger is the total amount paid on behalf of the passenger, up to $15,000. A claim must be submitted within 12 months after the scheduled completion date of travel and include sufficient documentation and a $35 processing fee. Claim forms are available from the Travel Consumer Restitution Corporation at 13 Dean Way, Chico, CA 95926, (530) 809-4220, or www.tcrcinfo.org. Transactions purchased from outside California are not covered by the TCRF. FinSync LLC has claimed the California credit-card trust account and bond exemption described in Business and Professions Code section 17550.15(j): passenger payments are made by credit card, and air-transportation charges are processed by the carrier or travel-service provider through the Duffel-supported payment flow rather than deposited, negotiated, factored, or credited to an account controlled by FinSync LLC. Upon cancellation of transportation or travel services, where the passenger is not at fault and has not canceled in violation of clearly disclosed and agreed terms, sums paid to FinSync LLC for services not provided will be promptly paid to the passenger unless the passenger advises otherwise in writing after cancellation.