Delta SkyMiles Platinum Amex Review: Worth $350 in 2026?

Introduction

If you fly Delta a few times a year and you've been wondering whether the Delta SkyMiles Platinum American Express Card is worth $350 in 2026, the short answer is: it depends almost entirely on whether you'll use the annual Companion Certificate. Skip the certificate and the math changes fast. This Delta SkyMiles Platinum Amex review walks through the earning structure, the perks that actually move the needle, the perks that look bigger than they are, and which Delta flyer this card is built for in 2026.

Quick Summary

Best For: Delta loyalists who fly two to four domestic round-trips a year and travel with a partner. Standout Benefit: Annual Companion Certificate after each renewal (one Delta Main round trip within the U.S. or to Mexico, the Caribbean or Central America, on the destinations Amex's terms list; you cover taxes and fees). Biggest Drawback: Amex says the card doesn't currently have lounge access benefits. Annual Fee: $350.

Card Overview

The Delta SkyMiles Platinum American Express Card sits in the middle of Delta's co-branded Amex lineup. Below it: the Delta Gold ($150) and the entry-level Delta Blue ($0). Above it: the Delta Reserve ($650), which is the one with Sky Club access. The Platinum is the version Delta and Amex aim at the regular flyer who isn't quite ready for a $650 commitment but wants more than the Gold's basics.

The annual fee is $350. That's the number you have to clear with the perks for this card to be worth carrying.

Earning Structure

The card earns:

3x SkyMiles on eligible Delta purchases.
3x on purchases charged directly with hotels.
2x at restaurants worldwide, including takeout and delivery in the U.S.
2x at U.S. supermarkets.
1x on everything else.

Two things to call out. First, the 3x hotel rate is for purchases charged directly with the hotel. A stay reserved through an online travel agency still earns 3x when you pay the hotel itself at check-in or check-out, but a stay prepaid through the agency earns 1x. Second, Amex's terms say superstores, convenience stores, warehouse clubs and meal-kit delivery services aren't supermarkets, so they earn 1x.

If you're carrying the Amex Gold (4x at U.S. supermarkets, capped at $25,000 a year) or the Blue Cash Preferred (6% at U.S. supermarkets up to $6,000), you'll keep using those for groceries. Same goes for dining if you have the Gold's 4x there. The Delta Platinum's 2x and 3x rates aren't class-leading; they're decent backup rates on a card you're already carrying for the Delta-specific perks.

SkyMiles are most useful for domestic Delta flights when the cash price is high.

The Companion Certificate

This is the headline. Renew the card each year and you get a Companion Certificate good for one Delta Main round trip within the U.S. or to Mexico and the Caribbean and Central American destinations listed in Amex's terms. It arrives after your first renewal, not in your first year. You pay the government taxes and fees, which Amex caps at $80 on a domestic round trip and $250 on an international one (up to four flight segments). Your companion flies for the cost of those taxes.

Say you use the certificate on a flight where the cash price is $450: that one ticket covers the $350 fee with room to spare.

The catch: you have to actually use it. The certificate is single-use and doesn't roll over. It works only on Delta, Delta Connection and Delta Shuttle flights; other codeshares don't count. The seats also have to be available in the relevant fare class, which on peak holiday weeks can be a problem. Plan a few weeks out and you'll usually find what you need.

If you and a partner take one Delta trip together a year, the certificate alone justifies the card. If neither of you flies Delta with regularity, the certificate is a perk you'll forget to use.

Free First Checked Bag

You and up to eight people on your reservation get the first checked bag free on Delta-operated flights. Delta charges $45 each way for a first standard checked bag on domestic flights and puts the card's saving at up to $90 per person on a round trip, or up to $360 for a family of four. Since June 4, 2026, your own second checked bag is free too on domestic Delta-operated flights; that part covers Basic Card Members, not the companions on your reservation.

This is the perk that quietly makes the card worth carrying for families.

Priority Boarding and 20% Inflight Savings

Zone 5 Priority Boarding, for you and the others on your reservation, is a real perk for anyone who carries on. You get on early, your bag goes overhead in your row, you're not gate-checking. Worth it if you fly enough to value it.

The 20% savings on inflight food and drinks (including eligible pre-purchased meals) on Delta-operated flights comes back as a statement credit; Wi-Fi and other inflight purchases don't count. Not a major perk, but it's something. Say you spend $30 on food and drinks on a flight: you get $6 back.

MQD Headstart, MQD Boost and the Path to Medallion

You earn Medallion Status through Medallion Qualification Dollars (MQDs). The Platinum card helps two ways. With MQD Headstart, you receive $2,500 MQDs each Medallion Qualification Year. MQD Boost adds one MQD for each $20 of purchases on the card.

For 2027 status, earned on 2026 activity, Delta's thresholds are 5,000 MQDs for Silver, 10,000 for Gold, 15,000 for Platinum and 28,000 for Diamond.

Headstart counts even if you barely fly. Boost is where spending comes in: say you put $25,000 on the card in a year, that's 1,250 more MQDs. If you're already flying enough to be near a status threshold, that can push you over. If you're not flying Delta much at all, it isn't a strong return on the spend, and you'd earn more value running it through a card with a stronger general earn rate.

Pros and Cons

Pros

Companion Certificate alone can offset the $350 fee with one trip.
Free first checked bag for cardholder plus eight companions on the same reservation.
Zone 5 Priority Boarding on Delta and Delta Connection flights.
3x on Delta purchases and on hotel purchases charged directly with the hotel is competitive for a co-branded airline card.
MQD Headstart adds $2,500 MQDs each Medallion Qualification Year, a real head start toward Medallion status.
A statement credit for a Global Entry or TSA PreCheck application fee once every 4 years.

Cons

$350 annual fee is real money if the certificate goes unused.
No Sky Club access (that's Reserve territory).
1x earning on most non-bonus categories is weak for a $350 card.
MQD Boost earns one MQD per $20 in purchases, versus one per $10 on the Reserve.

How It Compares

Vs. Delta SkyMiles Gold ($150)

The Gold earns the same 2x on dining and U.S. supermarkets, 2x (not 3x) on Delta purchases, and includes the free checked bags and priority boarding. The Companion Certificate and MQD Headstart and Boost are Platinum and Reserve benefits. If you don't use the certificate, the Delta SkyMiles Gold does most of what the Platinum does for a $150 annual fee ($0 the first year). The Companion Certificate is the main reason to step up.

Vs. Delta SkyMiles Reserve ($650)

The Reserve adds Delta Sky Club access (15 visits each Medallion Year, unlimited after $75,000 in purchases in a calendar year), a faster MQD Boost (one MQD per $10), and a Companion Certificate usable in Delta First, Delta Comfort or Delta Main. If you fly Delta enough to use the Sky Club often, the Reserve's lounge access can close much of the gap. For lighter Delta flyers, the Delta SkyMiles Reserve is overkill. For heavier flyers, the Platinum is undersized.

Vs. Chase Sapphire Preferred ($95)

This is the comparison that matters for anyone who isn't married to Delta. The Chase Sapphire Preferred earns 5x on Chase Travel, 3x on dining and 2x on other travel, has a $95 fee, and its points transfer to airline and hotel programs including Air France KLM Flying Blue. If you fly multiple airlines, the Sapphire Preferred is the more flexible card. The Delta Platinum only wins when you specifically want Delta perks: the certificate, the bag, the priority boarding.

For a deeper read on whether airline-specific cards make sense at all, see Are Airline Credit Cards Worth It in 2026?.

Who Should Get the Delta Platinum Amex

Great Fit For

Regular Delta flyers (two to four round-trips a year) who travel with a partner and will use the Companion Certificate.
Families who fly Delta and would otherwise pay multiple checked-bag fees per trip.
Travelers chasing modest Medallion status who fly Delta enough that MQD Headstart and MQD Boost matter at the margins.

Not Ideal For

Anyone who flies Delta once a year or less. The certificate goes unused, and the fee outweighs the perks.
Heavy Delta flyers who want lounge access. Step up to the Reserve.
Travelers who fly multiple airlines. A flexible-points card like the Chase Sapphire Preferred or Capital One Venture X is the better core card.
Anyone who prepays most hotel stays through online travel agencies. Those prepaid stays earn 1x, not the 3x hotel rate.

The Annual Fee Math

Here's how to size it up before you apply:

$350 annual fee.
Companion Certificate (after renewal): say you use it on a $450 round trip; you pay only the taxes and fees, no more than $80 on a domestic round trip.
Free checked bags: Delta puts the first-bag saving at up to $90 per person on a round trip.
Credits: up to $150 a year on prepaid Delta Stays bookings, plus up to $10 a month each at U.S. Resy restaurants and on U.S. rideshare with select providers (enrollment required).
Priority boarding, 20% inflight savings, 3x earning on Delta = bonus value, hard to quantify but real if you fly Delta with any regularity.

If you'll use the certificate, you're at break-even before the bag fees and earnings come in. If the certificate goes unused, you're trying to claw back the $350 with bag fees, credits and 3x miles, which is harder than it looks. For a deeper look at which cards include free checked bags across airlines, see Credit Cards With Free Checked Bags.

Final Verdict

The Delta SkyMiles Platinum Amex is a good card for the specific reader it's built for: someone who flies Delta a handful of times a year, books mostly in main cabin, and travels with a partner who'd benefit from the Companion Certificate. For that reader, the $350 fee is easy to justify once the certificate arrives after your first renewal, and it keeps earning its keep as long as the travel pattern holds.

For everyone else (occasional Delta flyers, heavy Delta flyers who'd get more from the Reserve, multi-airline travelers who want flexibility) the math doesn't work, and there are stronger options. If you're new to the Delta program and want to understand how SkyMiles actually work before committing to a card, start with our Delta SkyMiles program overview. When you're ready to compare current welcome offers, the Delta SkyMiles Platinum Amex sign-up page has the latest bonus details.

Updated September 30, 2026: Corrected Delta's bag fee ($45 first bag each way), the Companion Certificate's routes, timing and taxes, the boarding and inflight benefits, and the Medallion section (MQD Headstart and MQD Boost). The card does include a Global Entry or TSA PreCheck credit. Added the free second bag and the card's credits.

Updated October 1, 2026: Reworded the note on the card's Medallion benefits in the September 30 update. Corrected the meta description (the free second bag covers only your own bag, on domestic flights), listed the certificate's destinations from Amex's terms, and removed an unsourced SkyMiles value and unconfirmed Global Entry and TSA PreCheck amounts.

Sources

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