back to the survey
tools · station 08

FareSignal

Watches flight fares on saved routes and sends one quiet email when a fare drops below your budget.

survey position
N 52.30° ·E 04.76°
elevation
1,624 m
field status
shipped
role
Builder
stack
Next.js · Supabase
year
2026
links
context

Flight fares move constantly, and the only way to catch a drop by hand is to keep looking. Most people check a route a few times, miss the dip, and pay whatever the day offers.

FareSignal does the checking. A search is saved once — an exact route, a region, or anywhere from a home airport — and the watching becomes the machine’s job.

approach

One model covers every kind of search, from a fixed city pair with fixed dates to a fully open ‘anywhere’ query, so a watch is a watch regardless of how loose it is.

Each search carries a budget. When a fare crosses it, FareSignal sends a single email and then goes quiet until the fare recovers — one signal per drop, not a stream of noise.

once

one email when a fare crosses your budget — then silence until it recovers

result

A dashboard of live fares per saved search, a seven-day trend, and the alerts that have fired — each one stating the fare and the budget it undercut.

Fares are stored as raw snapshots and normalised price points, so the history is there to chart and to build on.

field readings
watchedexact route · region · anywhere
signalemail on budget cross
disciplinenotify once, wait for recovery
recordraw snapshots · normalised prices