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Computational Complexity of Air Travel Planning
This document is an annotated set of slides on the computational complexity of air travel planning. The goal is to give
somebody with an undergraduate level computer science background enough information to understand why air travel
planning is an interesting and especially difficult problem. It provides a basic introduction to the air travel planning
problem and then presents a variety of original computational complexity results as well as some related demos. The
complexity slides assume a basic familiarity with formal languages, computational complexity and computability, but the
introduction to the problem should be accessible without this.
algorithms  complexity  ita  aviation  google  flights  filetype:pdf  pdf  slides 
3 days ago by wjy
Google Flights will now tell you when fares will increase | Hacker News
dmbaggett on Oct 18, 2016 [-]

Fares and rules come from ATPCO (http://atpco.net). Flights come from OAG (http://www.oag.com). Seat availability requires data directly from the carrier, usually via a live query to the carrier's reservation system.
The GDS companies get this data from these sources and then in turn provide (crappy) APIs for customers to use to query it.

In general, if you're doing bookings you can get small amounts of the data (a query at a time) from a GDS. Otherwise you're looking at millions of dollars per year. And then you need to write code to parse it and price tickets using it (approximately 1M LoC if you're terse about it -- more like 30M if you're a GDS).

(I know all this because I co-founded ITA Software, whose software now powers Google Flights.)
flights  travel  hackernews  hn  ita  aviation 
3 days ago by wjy
Claim compensation if your flight's delayed or cancelled - Citizens Advice
If your flight is cancelled

You have the legal right to either:

a full refund - including other flights from the airline that you won’t use in the same booking such as onward or return flights
flights  money  :( 
5 days ago by Vincennes
Skiplagged: The smart way to find cheap flights.
Skiplagged is an airfare search engine for cheap flights, showing hidden-city ticketing trips in addition to what sites like Expedia, KAYAK, and Travelocity show you. Save up to 80% on airfare today!
travel  flights  search  airfare  flight  cheap  airlines  discount  tickets  airline 
11 days ago by globetec
El coronavirus también tiene efectos negativos en la crisis climática: aviones que vuelan vacíos
Aunque la epidemia está reduciendo las emisiones a corto plazo, la compañía aérea AirFrance-KLM ya ha pedido frenar las medidas climáticas El coronavirus limpia la atmósfera china
Flights  Climate  Change 
11 days ago by creym
Cheap Flight Hack: How to Cross the Ocean as Cheaply as Possible | Scott's Cheap Flights
One of our top tips for finding cheap international flights is “cross the ocean as cheaply as possible,” which might mean buying two sets
travel  travel-tips  travel-ideas  travelling  travel-deals  travel-hacks  flights  flight-deals  flight-hacks 
18 days ago by tylerham
Matrix - ITA Software by Google
Matrix, ITA's original airfare shopping engine, has yielded years of traveler insights and been
the origin for many of our innovative flight shopping features.
search  travel  flights 
4 weeks ago by wybczu

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