Where they come from
We use the Travelpayouts Data API, which stores what recent searches on Aviasales found. We query it once a week for every route we cover. It is what other searches found: not a live price and not a guaranteed seat.
What each fare means
- One way, 1 adult, economy, in MXN.
- We do not know whether it includes a checked bag; usually it does not. Payment or seat fees may cost extra.
- We show the amount with the date it was observed and the departure date of the flight found.
How long it counts as current
- A fare counts as current for 7 days after we retrieve it (the provider's cache window), unless the provider gives a different expiry.
- After that, for another 30 days, it is shown as an earlier observation with its date. After that it is no longer shown.
- We never show fares for flights whose departure date has passed.
- Rebuilding the site never refreshes a date; only a new API query does.
When there is no data
If a query fails, we keep the last good observation and label it as earlier. If there is no observation at all, we say "No verified fare yet" instead of inventing a "from" price.
Fares by month and history
- By departure month: the lowest one-way fare found for each future month. An empty month had no observation; it is not cheaper or more expensive.
- Weekly history: one point per week with an observation. Weeks without data are not filled in.
Rankings by city
The fares-by-departure-city and fares-by-destination pages rank current observations only. Routes without a current observation are listed separately, without a price.
Airlines on each route
The airline list comes from our route data and can change. We do not use labels like "fastest" or "best price". The link to the provider cannot filter by airline, so the button says "Compare flights".
Before you pay
The booking provider confirms the final price, availability and conditions. Aviasales shows prices in the currency of your location or account, which may not be MXN. If a figure looks wrong, email hola@flightsmx.com.