How buying airline miles actually works

Most people arrive at this needing a specific seat. You’ve found the business-class award you want, you’re 40,000 miles short, and the airline wants a fare that costs more than the holiday. Buying the shortfall is often the cheapest route to that seat, but the mechanics are rarely explained anywhere, so it feels opaque at exactly the moment you’re being asked to send money.

Here’s what actually happens.

The miles go into your existing account

You don’t receive a code, a voucher, or a transferable balance. The miles are deposited into the loyalty account you already hold with the airline, the same account number you’d use to book yourself. Once they land, they behave like any other miles in that account: you book through the airline’s own site, and the reservation is yours.

This is why we ask for your loyalty account number, and why we don’t need anything else. We’re not booking on your behalf and we don’t hold your ticket.

Delivery time varies by program, and it isn’t arbitrary

Each program has its own transfer mechanics, so the realistic window differs. Some post within a day; others take longer. The window shown on each program’s page is the one we commit to for that program, not a single number applied across the board, because that wouldn’t be true.

If a seller quotes you the same delivery time for every airline, that’s worth a question.

You get a firm quote before any money moves

The price shown on a program page is what that program costs per mile. But before you pay anything, we confirm in writing:

• the exact rate for your amount
• the delivery window for that specific program
• the total, with nothing added afterwards

Nothing is charged from this website. Payment happens off-site, after you’ve seen and agreed the quote. If the number you’re asked to pay differs from the number you were quoted, something has gone wrong. That shouldn’t happen, and it’s a fair reason to stop.

What to have ready

Ordering goes faster if you have three things to hand:

1. The program. The airline whose miles you need, not the airline you’re flying. These differ more often than people expect: many Star Alliance flights can be booked with a partner’s miles, sometimes far more cheaply.
2. The amount. Check your current balance and the award price, then order the gap. There’s rarely a reason to buy more than you need.
3. Your account number. The loyalty number, exactly as it appears in your account.

A note on timing

Buy the miles after you’ve confirmed the award seat is available, not before. Award availability moves, and miles sitting in an account for a seat that’s gone is the single most common avoidable mistake. If you’re unsure whether the seat will hold, say so when you request a quote.

If you’re weighing up a specific redemption and want a second opinion on whether the numbers work, ask. We’d rather tell you a purchase doesn’t make sense than sell you miles you don’t need.