START HERE · NOTE 01
Before you start collecting miles, read one ticket
The first step is not finding a mythical perfect card or program. It is learning what the ticket already says about the flight you bought.
Open the confirmation email for a flight you have already booked. Ignore the large photograph, the upgrade button and the invitation to buy a hotel. Somewhere in the receipt is a small block of operational information: a flight number, two airports, a date, a carrier name and—sometimes buried behind “fare details”—a booking-class letter. That block is a better first lesson in loyalty travel than a list of fifty credit cards.
Miles are posted according to rules attached to a particular journey. Before comparing programs, you need to identify that journey accurately. A route alone is not enough, and “economy” is not enough. Two tickets for seats in the same cabin can be sold by different carriers, issued on different ticket stock and booked into different fare buckets. Those differences may change whether a partner program awards anything at all.
Five lines worth finding
1. The operating carrier
This is the airline actually flying the aircraft. On a straightforward booking, the operating carrier and the airline name on the flight number are the same. On a codeshare, they may differ. Look for wording such as “operated by.” Partner earning tables often care about the operating carrier, so the logo at the top of the email cannot settle the question by itself.
2. The marketing carrier and flight number
The marketing carrier places its two-character code in front of the flight number and sells that flight in its own channels. A codeshare can therefore have one airline's flight number while another airline operates the aircraft. Keep both identities. Some rules refer to one, some to the other, and a search tool that asks only “Which airline?” may be hiding an important distinction.
3. The ticketing or validating carrier
The airline that issued the ticket may be different again, especially on itineraries containing partners. It is tied to the ticket document and to how the fare was issued. You may see its name beside the ticket number or on the receipt. Do not infer it solely from the website where you searched; agencies and multi-airline itineraries make that shortcut unreliable.
4. The booking class
A booking class is usually shown as a letter attached to each flight segment. It is not simply another word for economy, premium economy, business or first. It points to a fare inventory bucket inside a cabin. The same letter does not carry one universal meaning across every airline. The next note, What do Y, M and K really mean?, explains how to read it without guessing.
5. Every flight segment
A connection creates more than one segment. Record each origin, destination, operating carrier and booking class separately. A single ticket can contain a long-haul flight that earns under one rule and a short feeder flight that earns under another. Treating the whole itinerary as one line can quietly erase that difference.
| FIELD | WHAT TO COPY | WHY IT MATTERS |
|---|---|---|
| Flight identity | Marketing carrier, flight number, operating carrier | Codeshare rules can depend on the exact combination |
| Ticket identity | Ticketing or validating carrier; ticket number if needed | Some eligibility rules depend on how the ticket was issued |
| Fare identity | Booking class for each segment; fare basis if available | The cabin name alone is too broad for many earning tables |
| Journey | Origin and destination for every segment | Distance and geographic restrictions may be segment-specific |
Turn the ticket into one clean line
For each segment, write a compact record in this order:
date · operating carrier · marketing flight number · origin–destination · booking class · ticketing carrier
This is deliberately plain. It gives you something that can be checked against an official earning table or entered into a mileage calculator. If a field is missing, mark it as unknown rather than filling the gap from memory. A booking confirmation, an e-ticket receipt and the “manage booking” page may show different levels of detail; save the document that actually shows the class code.
Now choose a useful home
Only after the ticket is described properly should you compare programs. Start with a short list, not every possible partner. A sensible candidate is a program whose points you already have, whose awards match trips you may realistically book, or whose status benefits fit airlines you genuinely fly. A larger earning number in an account you never use can leave you with an orphan balance.
Compare base-member earning first. Elite bonuses can make a result look impressive even when a new member would receive much less. Keep redeemable miles and status credit separate as well: programs may count them differently, and neither number alone tells you what the balance will be worth to you. The companion note 10,000 miles may be worth less than 8,000 takes that comparison further.
The FlyerFolio mileage tool is designed to narrow the search. It can compare known base-member earning rules and flag restrictions that require human review. It cannot promise that a program will accept a claim, value the miles for your own travel, or replace the current official terms. When the data is incomplete, an honest “uncertain” is more useful than a confident-looking number.
Read the ticket again when it changes
Rebooking, a schedule change, rerouting or an upgrade can produce a new document or alter one segment while leaving the rest untouched. Check the latest receipt instead of relying on the first confirmation. If the class shown online conflicts with the ticket receipt, ask the airline or ticketing agent which class was ticketed for the affected segment.
Keep the receipt until the flight has credited correctly. A boarding pass and the final e-ticket record can be useful if you later submit a missing-mile request. Do not assume a flight can be credited twice. If it posts to the wrong program, correction procedures vary, and the relevant programs decide what can be changed.
The first notebook entry is therefore small: one ticket, copied accurately, followed by one deliberate choice. That is enough. News, promotions and advanced routing tricks can wait until the labels on the ticket no longer look like random code.
Verification note · checked 9 August 2026. This article explains a reading method, not the current earning chart of any one program. Carrier eligibility, partner tables, booking-class treatment, claim procedures and program terms can change. Confirm the latest ticket document and the official program page before crediting a flight or changing a fare. When an official rule conflicts with this note, the official rule wins.