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scienceApr 22, 202512:34pending

The Hidden Complexity of Booking a Flight

About this episode

In this Deep Dive, we pull back the curtain on online flight pricing—from routes and fare components to priceable units and airline inventory. We explore why computing the cheapest itinerary is NP-hard (and sometimes EXP-space hard in theory), how search is pruned with heuristics and caching, and how these ideas connect to prompt engineering.


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The Hidden Complexity of Booking a Flight

Intellectually Curious

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