a2bflight fares

Use this when someone asks where they can fly cheaply from a city, or for flight deals under a budget or in a month. The cheapest cached fare on every route we hold from an origin (or into a destination), cheapest one-way first, each with its cheapest round trip of a 3 to 21 day stay in `return` when we hold one. Filter by a maximum price and a departure month here rather than by reading the list; both apply to the one-way. Prices are one adult, economy, as seen on the date in `seen` (or last checked on `checked` when a row has none) — observations, not quotes.

Look up airports and city codes by name, or list the airports near an airport code. Use it to turn a city name into the IATA code a flight search with the other tools takes.

A link to a2bflight.com's group page for people flying from different homes to meet in one place. Use it when the user already knows where; where_to_meet when they ask where. Without dates it picks the weekend whose round trips we have seen price everyone, with each fare and the total; with dates it quotes no price, and the page shows each person's cheapest fare we have seen for them or the closest. A warning says why the fares are a poor option and what to try instead: pass it on.

Use this when someone asks about flights, flight prices, airfare or cheap plane tickets between two airports or cities (for example Seoul to Tokyo; find_airports turns a city into its airports). Everything we hold for one airport pair: the cheapest one-way, the cheapest round trip of a 3 to 21 day stay, a fare calendar of the cheapest one-way by departure date, the cheapest month, and the cheapest round trips. When we hold no fare for the pair, it looks the route up at our fare source; if the fares are not back in time it answers status "pricing", and asking again a minute later reads them.

Where 2 to 8 people flying from different homes can meet cheapest: the places every home has a route into, each with a weekend whose cached round trips price everyone, each person's fare, the total, and meet_url — the group's page with all of it filled in. A place with a warning is a poor option: say why, and offer the better pick it names. Prices are one adult, economy, as seen on `seen` (or last checked on `checked` when a fare has none).