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cabin-codes

Decodes IATA cabin and saver fare class codes for award inventory analysis.

650|67|Updated Mar 21, 2026
Search Tags:#award flights#travel hacking#saver availability#cabin codes#fare class#partner booking#united mileageplus
One-click install
npx skills add https://github.com/borski/travel-hacking-toolkit --skill cabin-codes
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: cabin-codes
Source: https://github.com/borski/travel-hacking-toolkit/tree/main/plugins/travel-hacking-toolkit/skills/cabin-codes
Command: npx skills add https://github.com/borski/travel-hacking-toolkit --skill cabin-codes

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Award search results from tools like Seats.aero and airline sites use cryptic single-letter codes (F, J, W, Y, X, I, O), making it hard to know which cabin you found and whether partner programs can book it at lower rates.

Core Features & Use Cases

  • Cabin Code Reference: Maps IATA codes F (First), J (Business), W (Premium Economy), and Y (Economy) to their cabin classes.
  • Saver Fare Class Lookup: Explains X (Economy Saver), I (Business Saver), and O (First Saver) codes and which programs use them.
  • Partner Booking Verification: Clarifies that partners like Turkish Miles&Smiles only see saver inventory, so you must confirm saver class availability on the operating airline's site before transferring points.
  • Use Case: You find a United business class award on Seats.aero. Use this reference to confirm it is I class saver inventory, then book it through Turkish Miles&Smiles for 45,000 miles instead of 80,000 United miles.

Quick Start

Ask the AI what fare class code I means and whether that United flight is bookable through Turkish Miles&Smiles.

Frequently Asked Questions about cabin-codes

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
What do cabin codes F, J, W, and Y mean on award searches?▼

F means First Class, J means Business Class, W means Premium Economy (sometimes coded as P), and Y means Economy. These IATA codes appear in award search results from tools like Seats.aero to indicate the cabin of the available seat.

What are saver fare class codes X, I, and O?▼

X is Economy Saver, I is Business Saver, and O is First Saver on United MileagePlus. When these codes show as available on united.com, partner programs like Turkish Miles&Smiles can book the same flight, often at much lower mileage rates.

Why can't partner airlines book my United award flight?▼

Partner programs only see saver-level inventory, not standard or everyday fares. If only standard fares show on united.com, partners like Turkish or Aeroplan cannot book that flight regardless of their own search results.

How do I verify saver availability before transferring points?▼

Check the operating airline's own site, such as united.com, and confirm the saver fare class (X, I, or O) is open for your flight. Only transfer points to the partner program after confirming that saver inventory exists.

Is booking through a partner program always cheaper?▼

Not always, but partner rates are often dramatically lower. A United business saver flight costing 80,000 United miles might cost only 45,000 Turkish miles, though you must confirm saver availability first.

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