Terms of service

Last updated: May 20, 2026

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.

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. We are not an airline. We do not operate flights, own aircraft, or issue tickets in our own name. We do not custody or hold passenger airfare funds. Airfare payments are processed through the Duffel-supported payment flow that routes funds directly to the airline or supplier; the travel supplier is the merchant of record for the fare. FlightSweeper only separately charges its own service fee (and Pro subscription fees, where applicable). When you book a flight 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 binding price is the one confirmed at payment. Before we charge you, we refresh the live offer and show you the final total. If the refreshed offer differs materially, you can decline.

3. Service fee

FlightSweeper charges a separate service fee for bookings made by non-Pro users. This fee is ours and is separate from the airline fare, taxes, and government charges, which are processed through the Duffel-supported payment flow and routed to the airline/supplier. The fee currently scales with fare size and is capped; the exact amount is disclosed in the price breakdown before you authorize payment.

• 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.
• Pro subscribers do not pay the service fee on bookings made during an active subscription.

See our Refund Policy for full details, including how the US Department of Transportation 24-hour rule applies.

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. We surface the relevant fare rules on the booking screen, but the airline is the authoritative source. For schedule changes, cancellations, or operational refunds, we will forward airline notices to your contact email and can help facilitate, but the underlying decision is the airline's.

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. Our public product pages describe current availability in general terms.

6. Route, airport, and discovery pages

Pages such as our route guides, airport pages, and discovery surfaces are decision aids built from curated logic and historical patterns. 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.

7. 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.

8. 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.

9. Pro subscription

The Pro plan is a recurring subscription. See our Subscription Terms for auto-renewal disclosures, renewal pricing, cancellation, and refund handling.

10. Referral program

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

11. 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.

12. 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.

13. 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).

14. 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.

15. 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 hello@flightsweeper.comwith the subject line “Arbitration Opt-Out” and including your account email.

16. 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.

17. 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.

18. 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.

19. Contact

FinSync LLC (d/b/a Raintree Technology)
FinSync LLC, California, USA
Email: hello@flightsweeper.com