The Delta SkyMiles Platinum sits in the second tier of Delta's co-branded card lineup — below the Reserve ($650) and above the Gold ($150). At $350/year, it occupies a compelling middle ground: it includes the annual companion certificate that the Gold lacks, offers stronger earning rates than either sibling card, and provides a meaningful push toward Medallion elite status through its MQD Headstart benefit.
For Delta flyers who travel 3–6 times per year with a companion, the math is straightforward: the companion certificate alone frequently covers or exceeds the $350 annual fee in a single use. Add $440+ in annual credits and TakeOff 15, and this card delivers strong ongoing value for the dedicated Delta traveler.
Welcome Offer: Up to 90,000 Miles
New cardholders can earn up to 90,000 bonus miles after spending $3,000 on eligible purchases in the first 6 months. Welcome offers vary — Amex shows your personalized offer at application with no credit score impact until you accept.
At TPG's April 2026 valuation of 1.2¢ per SkyMile, 90,000 miles are worth approximately $1,080 toward Delta flights. The $3,000 spend requirement over 6 months ($500/month) is very achievable for most cardholders.
Once-Per-Lifetime Amex Rule
American Express enforces a strict once-per-lifetime welcome bonus policy. If you've previously earned a welcome offer on the Delta SkyMiles Platinum Card, you are not eligible for the bonus again. Amex's "family language" policy may also affect eligibility if you've held other Delta Amex cards.
Annual Companion Certificate: The Defining Benefit
Every year after your card renewal, you receive a Companion Certificate valid for a round-trip Main Cabin flight to domestic U.S. destinations and select international routes (Mexico, Caribbean, Central America). Your companion pays only government-imposed taxes and fees — between $22 and $250 depending on routing.
The value depends on your route and when you book. A $300 domestic round-trip ticket yields $278+ in net companion savings. A $600 peak-season ticket to the Caribbean yields $550+ in savings — nearly twice the card's annual fee from a single use. For anyone who travels with a partner or family member even once per year, this certificate makes the Platinum essentially self-funding.
Platinum vs. Reserve Companion Certificate
The key difference: the Platinum's certificate is valid for Main Cabin only, while the Reserve's certificate is valid for First Class, Delta Comfort+, or Main Cabin. If you regularly book First Class, the Reserve's certificate delivers significantly more value. If you fly Main Cabin, the Platinum's certificate at $350 vs. $650 is a much better deal.
Earning Rates: Best in the Delta Lineup
| Category | Miles Per $1 | Return at 1.2¢/mile |
|---|---|---|
| Delta purchases (flights, upgrades, in-flight) | 3x | 3.6% |
| Hotels booked directly | 3x | 3.6% |
| Restaurants worldwide (incl. delivery & takeout) | 2x | 2.4% |
| U.S. supermarkets | 2x | 2.4% |
| All other purchases | 1x | 1.2% |
The Platinum earns more than the Gold (which only earns 2x on Delta) and more broadly than the Reserve (which earns 3x on Delta only, 1x everywhere else). The 2x on restaurants and U.S. supermarkets makes this a more useful everyday card than either alternative in the Delta lineup.
Annual Credits: $440+ in Value
Rideshare Credit
Resy Dining Credit
Delta Stays Credit
Global Entry / TSA PreCheck
Does the $350 Annual Fee Pay for Itself?
Annual Value — Regular Delta Flyer, Traveling With a Companion
3–4 Delta flights/year, companion certificate used on a domestic round-trip ($400 ticket), all credits captured
Medallion Status Acceleration
Like the Reserve, the Platinum offers the same two Medallion-boosting benefits:
- MQD Headstart: $2,500 in Medallion Qualification Dollars deposited automatically each Medallion Year — a significant head start toward Silver ($3,000), Gold ($6,000), or Platinum Medallion ($9,000) status.
- MQD Boost: Earn $1 MQD for every $20 spent on the card (note: the Reserve earns $1 MQD per $10 spent, making it twice as efficient for heavy spenders). The Platinum's lower earn rate means more spending is required for the same MQD output.
MQD Comparison: Platinum vs. Reserve
Both cards offer the same $2,500 MQD Headstart. However, the Reserve earns $1 MQD per $10 spent while the Platinum earns $1 MQD per $20 spent. To earn $2,000 additional MQDs from spending: the Reserve requires $20,000 in annual spend; the Platinum requires $40,000. For most cardholders, the headstart is the more impactful benefit on both cards.
Other Benefits
- TakeOff 15: 15% off all Delta-operated award flights — same benefit as Gold and Reserve
- Free first checked bag for cardholder and up to 8 companions on the same reservation ($45/bag saved each way)
- Priority boarding in Zone 1 on all Delta flights
- Complimentary upgrades when available (non-Medallion priority)
- 20% back on inflight purchases — food, beverages, headsets
- No foreign transaction fees
- Car rental loss and damage coverage
- Trip delay reimbursement: up to $300 per covered trip delayed more than 12 hours
Platinum vs. the Delta Lineup
| Feature | Gold — $150/yr | Platinum — $350/yr | Reserve — $650/yr |
|---|---|---|---|
| Welcome Offer | Up to 80K miles | Up to 90K miles | Up to 100K miles |
| Annual Credits | $100 Delta Stays | $440+ (rides, Resy, stays) | $560+ (rides, Resy, stays) |
| Companion Certificate | None | Main Cabin | First / Comfort+ / Main |
| Lounge Access | None | None | Sky Club (15 visits) + Centurion |
| Delta Earn Rate | 2x | 3x | 3x |
| Hotel Earn Rate | None | 3x | None |
| Restaurant + Grocery | 2x | 2x | 1x |
| MQD Boost Rate | None | $1 per $20 | $1 per $10 |
| Best For | Occasional Delta flyers | Regular flyers with companions | Frequent flyers valuing lounges |
Pros & Cons
What We Love
- Annual Main Cabin companion certificate — frequently worth more than the $350 fee
- $440+ in annual credits (rideshare, Resy, Delta Stays)
- 3x on Delta and hotels — best earn rate in the Delta lineup
- 2x on restaurants and U.S. supermarkets
- $2,500 MQD Headstart toward Medallion status
- Free first checked bag for cardholder + up to 8 companions
- TakeOff 15 — 15% off all Delta award flights
- Global Entry / TSA PreCheck credit
- No foreign transaction fees
What to Watch Out For
- $350 annual fee — more expensive than the Gold; requires companion cert use to justify
- No lounge access whatsoever — big step down from the Reserve
- Companion certificate valid for Main Cabin only (vs. Reserve's First Class option)
- MQD Boost less efficient than the Reserve ($1 per $20 vs. $1 per $10)
- Miles locked in Delta ecosystem only
- Credits require enrollment and monthly tracking
- Once-per-lifetime welcome bonus rule
Delta SkyMiles® Platinum American Express Card
Up to 90,000 miles · Main Cabin companion certificate · $350 annual fee · Good–Excellent credit
Apply Now →Who Should Get the Delta Platinum?
Get it if you:
- Fly Delta 3–6 times per year and regularly travel with a companion — the Main Cabin certificate pays for the card
- Want stronger earning rates than the Gold (3x on Delta and hotels, vs. 2x on Gold)
- Are working toward Silver or Gold Medallion status and want the $2,500 MQD Headstart
- Can capture the $440+ in annual credits to further offset the fee
Skip it if you:
- Never travel with a companion — without using the certificate, the $350 fee is hard to justify vs. the $150 Gold
- Want lounge access — look at the Reserve ($650) for Sky Club + Centurion Lounge access
- Fly Delta only 1–2 times per year — the Delta Gold at $150 is a better fit
- Prefer flexible rewards — a card like the Chase Sapphire Preferred transfers points to Delta and 13 other programs
The Bottom Line
The Delta SkyMiles Platinum is the right card for the frequent Delta flyer who travels with a partner and flies Main Cabin. The companion certificate is the central benefit — used once per year, it covers or exceeds the $350 annual fee and transforms the card's value proposition. Add $440+ in credits, stronger earning rates than any other Delta card, and the MQD Headstart for status seekers, and this is a well-rounded mid-tier airline card for loyal Delta passengers.
The comparison to consider carefully is whether the $300 premium for the Reserve ($650 vs. $350) is worth it for Sky Club + Centurion Lounge access and a better companion certificate. If you value First Class travel and lounge access, the Reserve pulls ahead. If you fly Main Cabin and don't care about lounges, the Platinum delivers comparable core benefits at nearly half the fee.