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Loyalty · Published August 21, 2026 · About an 8 minute read

Understanding SkyMiles and Medallion status (in English)

Delta's loyalty program has gone through more changes in the last three years than in the ten before that. Some helped travelers. Others were rough on people who'd built their travel patterns around the old rules. Below is where things sit now, without the marketing shine.

SkyMiles: the currency

SkyMiles are Delta's frequent-flyer currency. You earn them by flying, by spending on co-branded credit cards, or through partner activity (Lyft, Starbucks, some hotel programs). Redemptions go toward flights on Delta and its SkyTeam partners, and sometimes upgrades. Merchandise and experiences also count, though in most cases you're leaving value behind if you go that route.

SkyMiles never expire. Whatever's in your account when you stop flying stays there, full stop. Old programs used to wipe balances after 18 months of inactivity, so this counts as real progress.

Award pricing, on the other hand, is dynamic and there's no published award chart. A one-way ATL to LGA might cost 8,000 miles on a slow Tuesday or 45,000 miles on a peak Friday, for the same 737-900. Get comfortable with the idea that miles are more like a fluctuating gift card than a fixed currency. Typical value works out to somewhere between 1.1 and 1.4 cents per mile, with outliers in both directions.

Medallion status: the tiers

Delta has four Medallion tiers: Silver, Gold, Platinum, and Diamond. Each unlocks progressively better benefits.

Diamond in particular gets you noticed by the agents in ways that matter during an August thunderstorm at ATL when the whole system starts backing up.

How you actually earn status now

In September 2023, Delta announced it was moving to an MQD-only qualifying system for status starting with the 2024 program year, meaning no more Medallion Qualifying Miles or Segments. Customer pushback was significant enough that the airline walked pieces of it back within about a month, dropped the thresholds, and made concessions on co-branded card spend counting toward MQDs. As of the current program year, MQD-only remains the direction of travel.

The current MQD thresholds (as of writing — check delta.com/medallion for updates):

MQDs (Medallion Qualification Dollars) are earned mainly through the money you spend on Delta-marketed flights, based on the base fare before taxes. You also earn MQDs from spending on Delta co-branded American Express cards, which is how many non-frequent flyers currently qualify. The exchange rate on the cards is fixed and public; the fastest earners are the Delta SkyMiles Reserve and Reserve Business.

Status used to be a reward for flying a lot of miles. Now it rewards spending a lot of dollars, whether on tickets or on the credit card. Whether that trade feels fair depends on how you fly.

Should you chase status?

Probably not, unless you were already going to hit it anyway, or you value one specific benefit enough to work for it.

Fly Delta once a quarter and status barely moves the needle; the effort to qualify would be counterproductive. Fly once a month and Silver or Gold is achievable through card spend, with real everyday perks (bag, boarding, upgrades on shorter DTW-to-BOS type routes). Fly 40 or more times a year and Platinum or Diamond becomes a lifestyle-affecting benefit. Upgrades clear regularly. Disruptions get handled quickly.

At Silver and Gold, the co-branded Amex is doing more of the heavy lifting than the flights are for most people. Look at what you'd spend on the card in a normal year, then do the math on whether the annual fee plus MQD earn gets you to the tier you want.

Upgrade certificates — the underrated Platinum/Diamond perk

Platinum members get four Global Upgrade Certificates or Regional Upgrade Certificates per year. Diamond members get six, with the option to choose higher-value benefits. These are the real currency of premium-cabin international travel.

A Global Upgrade Certificate can move you from a paid economy or Comfort+ ticket into Delta One on a long-haul international flight, a cash upgrade that would otherwise cost $2,000 to $5,000. Certificates only clear if the fare class of your original ticket is upgrade-eligible (usually a paid Main Cabin fare, not the cheapest Basic), and only if premium-cabin award space is available at the time you request the upgrade. On busy routes like JFK to LHR in July, that's non-trivial.

People at Platinum and above who don't actively plan around their certificates often leave them unused. If you have them, plan your year of travel around when to spend them.

Award tickets — the good and the strange

The good side of award tickets: they can be cancelled for a full refund of miles up to shortly before departure, as long as they're not Basic Economy award tickets (yes, those exist). No fee, no penalty. Booking with miles gives you room to speculatively hold a trip in a way cash fares never do.

Award pricing gets strange fast. It sometimes has almost no relationship to the cash fare on the same flight. You'll see 12,000 miles for a flight where the cash price is $180, and 60,000 miles for a flight where cash is $250. Mile-rich travelers should learn the SkyMiles calendar view; it's where the sweet spots live.

Best-value redemptions, roughly:

Worst-value redemptions: peak holiday domestic tickets, and anything involving "Pay with Miles" at a fixed 1 cent per mile.

Loyalty questions people call us about. Whether a co-branded card makes sense for how you fly, how to use an upgrade certificate before it expires, whether an award redemption is a good deal or a mile-waste. We can talk through your account with you. Call (844) 408-2528.

Call (844) 408-2528

This guide is written by Travel Support, an independent third-party helpline. We are not affiliated with Delta Air Lines or American Express. SkyMiles program and Medallion tier information reflects Delta's own published rules at the time of writing and is subject to change. For current thresholds and benefits, consult delta.com/medallion.

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