The following six checks tell you almost everything you need to know before choosing which platform to use to sell your airline miles. The things to look out for are: whether they pay before or after they touch your account, whether they ask for permanent or temporary access, whether your rate is locked once you accept, how they actually redeem the miles, whether their track record holds up outside their own website, and whether the quote itself is free and non-binding. Run through those six and you'll know within minutes if a buyer is legitimate or a risk.

The problem is that "airline miles selling services" range from established, process-driven brokers to anonymous reddit buyers who aren't as trustworthy as established platfoms. The checklist below is what separates the two, using The Miles Market's own process as a working example of what each check should look like when a buyer gets it right.

1. Does the buyer pay before or after they touch your miles?

Payment sequencing is the single biggest predictor of a safe transaction. A buyer who asks for account access, transfers or redeems your miles, and then pays you has just removed your only leverage. If something goes wrong at that point, your miles are gone and you're chasing an invoice.

The Miles Market sends payment before it ever accesses or redeems your miles. You accept a quote, receive your funds, and only then does the account get used. This isn't a courtesy, it's the mechanism that makes the whole transaction safe for the seller, because it removes the buyer's incentive to stall or short you once they already have what they came for. When you're comparing airline miles selling services, ask this question first and get the answer in writing before you go any further.

2. Do they ask for permanent access, or temporary and limited?

A buyer only needs enough access to verify your balance and complete a redemption. Anything beyond that is a red flag. Some services ask for full login credentials with no time limit and no clear boundary on what they'll do with that access, which leaves your account exposed well past the transaction itself.

The Miles Market requests temporary access solely to confirm your balance and eligibility, and recommends setting a unique password for the transaction that you change back once it's complete. It also advises removing any saved payment methods from your airline profile beforehand, as a simple extra precaution that costs you nothing. Legitimate services structure the transaction so your account isn't exposed longer than it needs to be. If a buyer wants standing access with no clear end point, walk away.

3. Is your rate locked once you accept the quote?

Airline programs devalue miles with little warning, and a buyer who can quietly reprice your quote after a devaluation announcement is passing that risk straight back to you. This matters more than it looks like on paper, since devaluations tend to cluster around the exact transfer windows sellers are using.

Once you accept a quote with The Miles Market, the rate is locked. If the airline announces a devaluation before your transfer completes, it doesn't change your payout. That guarantee only means something if it's stated plainly before you commit, so ask directly: is the number I'm accepting today the number I'll actually get paid, regardless of what the airline does next?

4. How do they actually redeem the miles once they're transferred?

This check protects your former account, not just your cash. Buyers who redeem in unusual patterns, in bulk, or in ways that don't resemble normal member activity risk triggering the airline's fraud detection, which can flag or freeze the very account you just sold from.

The Miles Market redeems miles the way a regular member would, following normal booking channels rather than bulk or automated patterns designed to extract value fast. You won't always get a detailed answer to this question since redemption specifics are commercially sensitive, but any legitimate buyer should be able to tell you, in general terms, that they avoid patterns that look nothing like ordinary account activity. If they can't or won't answer at all, treat that as a signal.

5. Can you verify their track record independently?

A polished website tells you what a company wants you to know. What you actually need is evidence you didn't source from them. Trustpilot is the most reliable way to cross-reference that independently, since reviews there aren't written or curated by the company itself.

The Miles Market has processed transactions for more than 50,000 customers, a volume you can weigh against what shows up on Trustpilot rather than take on faith. When you're checking any airline miles marketplace, look past the homepage. Search the company name alongside "review" or "complaint," check how long the domain has existed, and see whether their claims hold up anywhere they didn't write themselves.

6. Is the quote free, transparent, and non-binding?

You shouldn't have to commit anything, submit payment information, or agree to terms just to find out what your miles are worth. A quote is a starting point for a decision, not a binding step, and any service that pressures you to accept quickly or treats a quote request as a commitment is optimizing for their close rate, not your outcome.

Every quote from The Miles Market is free and non-binding, so you can compare it against other offers before deciding anything. If you sell frequent flyer miles or loyalty points somewhere that won't let you walk away after seeing the number, that alone is reason enough to look elsewhere.

Putting the checklist to work

None of these six checks require insider knowledge. They're questions any legitimate buyer should answer clearly and quickly, and the fact that most airline miles selling services don't volunteer this information upfront is itself informative. If you want to see what the process looks like end to end, The Miles Market's sell page walks through it, and the guide to selling airline miles safely covers additional account-level precautions worth taking regardless of who you sell to.

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