Aviasurf

Compare cached indicative fare samples in an interactive airport comparison across airports of the origin city, destination city, or both. Prices are per adult. Always link the returned search_url from a short label in the answer language, for example "Check live prices on Aviasurf"; never paste the raw URL as text. Outbound and inbound are calculated separately. Missing prices mean no cached observation, not that no flight exists.

compare_airports

Find cached indicative fares from an origin and render interactive destination cards, optionally filtered locally by budget, geography, monthly air or water temperature, distance to the coast, island status, elevation, trip-duration suitability, or an Aviasurf destination group. Connect natural user requests to filters: 'mountains' or 'в горы' means elevation_min_m; 'weekend getaway' or 'на выходные' means trip_duration_band=weekend; 'islands' or 'на острова' means island=true; 'where can I swim?' or 'где купаться' means month plus water_temp_min. Prices are per adult. Temperature filters require month. Missing water data excludes a destination only when water_temp_min is requested. Historical significance, when present, is explicitly a sparse model estimate, not a measured fact. Always link the returned search_url from a short label in the answer language, for example "Check live prices on Aviasurf"; never paste the raw URL as text. Use group=russia explicitly for Russian domestic destinations.

cheapest_destinations

Show cached indicative price observations in an interactive calendar by day, by month, or as observed departure/return date pairs. Prices are per adult. Every monthly row includes sample_size and sample_sufficient. A month with sample_sufficient=false is a limited cached observation, not a reliable monthly minimum or evidence of seasonality; state that limitation instead of drawing a seasonal conclusion. Always link the returned search_url from a short label in the answer language, for example "Check live prices on Aviasurf"; never paste the raw URL as text. Missing dates mean no cached observation, not that no flight exists.

price_calendar

Find cached indicative fares with baggage, cabin, direct-flight, budget, flexible-date, and trip-duration filters and render interactive flight cards. Prices are per adult. Always link the returned search_url from a short label in the answer language, for example "Check live prices on Aviasurf"; never paste the raw URL as text. Airline, departure-time, and transfer-count filters are applied only to the returned cache sample and are reported in query_coverage. Use flight_prices for requests that do not need these filters.

flight_prices_filtered

Find cached indicative 'from' fares for a route and render interactive flight cards. Prices are per adult. These are historical observations, not live availability or booking offers. Always link the returned search_url from a short label in the answer language, for example "Check live prices on Aviasurf"; never paste the raw URL as text.

flight_prices

Summarize a cached fare sample in an interactive route profile: price statistics, airlines observed, travel duration, route distance, and city airports. Prices are per adult. Always link the returned search_url from a short label in the answer language, for example "Check live prices on Aviasurf"; never paste the raw URL as text. direct_seen means only that a nonstop option appeared in the sample; never infer that direct flights do not exist.

route_facts

Build an Aviasurf live-search URL with dates, passenger composition, cabin class, currency, and locale. Always link the returned search_url from a short label in the answer language, for example "Check live prices on Aviasurf"; never paste the raw URL as text. This opens live search; it does not confirm a fare or availability.

open_search

Resolve a city, airport, or country name to IATA/location candidates. Returns every plausible candidate instead of guessing, and includes airports for city candidates.

resolve_place