Flight Ledger – Track your flights, what they cost, and United status

What to know before you start

Flight Ledger is a browser-based personal ledger for recording the flights you have already taken, what those trips cost, what United credited, and how your MileagePlus progress is developing. It is focused on the United ecosystem but is not limited to United flight history. The product is designed for people who want one place to reconcile airline activity, ticket receipts, reimbursed expenses and long-term travel statistics without maintaining another cloud account. It does not book travel, track live flights or connect directly to an airline account. Instead, it reads files that the user supplies and keeps the resulting ledger locally in the browser by default. Source: https://github.com/vlvovch/flight-ledger, https://app.flightledger.net/faq

The quickest starting point is a United “My Activity” CSV downloaded from united.com. According to the product documentation, that import creates a flight history and brings in the miles and PQP that United has posted. It also supports CSV exports from Flighty and myFlightradar24, allowing users to add broader flight histories from any airline, including routes, dates, times, cabins, seats, aircraft types and tail numbers where those fields are present. Flights can also be entered or edited manually. Re-importing the same file is designed to be safe, and imported values remain editable rather than becoming permanent records. Source: https://github.com/vlvovch/flight-ledger, https://app.flightledger.net/faq

The cost side is built around receipt and ticket data. Users can drop individual .eml files or an exported .mbox file onto the Tickets page, or enter tickets manually. The importer documentation describes recognition for 23 email formats, including receipts and booking messages from several airlines and travel agencies, as well as schema.org flight markup used by some other carriers. The importer can attach receipts to matching flights, read fare and payment details, create missing segments and handle award-ticket taxes and fees. It also attempts to account for reissued tickets, refunds, reimbursements and multiple payment methods. Receipt parsing is a practical constraint: the creator specifically notes that ticket reissue chains and varied receipt formats have been difficult cases, so imported results should be reviewed before being treated as complete accounting records. Source: https://github.com/vlvovch/flight-ledger/blob/main/docs/importers.md, https://app.flightledger.net/faq

For United-focused users, Flight Ledger separates status and cost metrics rather than treating a flight as a simple calendar entry. Documented measures include PQP, PQF, award miles, Premier qualification progress, lifetime miles and Million Miler progress. The product also calculates cost per mile in several views, distinguishes personal and reimbursed costs, and provides a reconciliation queue for issues such as missing United credit, duplicates, foreign-currency handling and inconsistent timing or distance data. Other documented views include cash flow, route statistics, travel mix, fare-class economics, aircraft and tail-number information, a route map and a printable annual report. These metrics depend on the completeness and quality of the files imported or values entered by the user. Source: https://github.com/vlvovch/flight-ledger, https://app.flightledger.net/faq

The privacy model is a central operating constraint. The public browser application has no required sign-up, login or user account, and the repository states that the ledger runs in the browser using SQLite compiled to WebAssembly. Imported flights, tickets, costs and receipts are stored in browser storage and are not uploaded to a product backend. Clearing the browser’s site data deletes the local ledger, so the documentation recommends exporting backups. Settings provide a full JSON backup and CSV exports. Optional Google Drive sync copies a backup to a private folder in the user’s own Drive when the user initiates synchronization; the privacy policy states that this transfer goes directly from the browser to Google. Self-hosting is also documented, with the server storing each account as a local SQLite file and binding to the local machine by default. Source: https://app.flightledger.net/privacy, https://github.com/vlvovch/flight-ledger

Flight Ledger is therefore best evaluated as a manual-import accounting and analysis tool for frequent flyers, especially people whose travel is concentrated around United and who care about reconciling costs with MileagePlus activity. It is not a replacement for an airline account, a live flight tracker or an automated expense platform. Its usefulness depends on obtaining exports and receipts, checking parser results and maintaining backups. The public repository identifies the project as MIT licensed and documents a Next.js and TypeScript implementation, browser-side SQLite/WebAssembly storage, self-hosting instructions and development commands. The creator also states in the supplied Hacker News post that the app was built with Claude Code. The supplied live application capture showed a loading shell, so this page relies on the repository, FAQ, privacy policy, importer documentation and the creator’s description for feature evidence rather than claiming independent interactive verification. Source: https://github.com/vlvovch/flight-ledger, https://news.ycombinator.com/item?id=49395637, https://app.flightledger.net/