Atmos Rewards Summit vs Delta SkyMiles® Platinum

Atmos Rewards Summit
VS
Delta SkyMiles® Platinum
The short answer: Two airline cards for different carriers. The Atmos Summit ($395) is a premium Alaska card with a Global Companion Award. The Delta SkyMiles Platinum ($350) gives an annual companion certificate, free bags, and status boosts. Alaska flyers, the Summit; Delta flyers, the Platinum.

Side-by-side comparison

Atmos Rewards SummitDelta SkyMiles® Platinum
Annual fee$395$350
Welcome offer100,000 bonus points + 25,000-point Global Companion Award (limited-time)60,000 Up to 100,000 SkyMiles (limited-time)
Dining3x2x
Groceries1x2x
Gas1x1x
Travel1x1x
Streaming1x1x
Everything else1x1x
Est. yearly rewards*$352$382
Points typeLocked to Atmos RewardsLocked to Delta SkyMiles
NetworkVisaAmex

*Estimated yearly rewards on typical household spending, every point valued at a flat 1 cent. Verified July 2026. See your own numbers in the calculator.

Welcome bonus and value over time

Over timeAtmos Rewards SummitDelta SkyMiles® Platinum
Welcome bonus100,000 bonus points + 25,000-point Global Companion AwardUp to 100,000 SkyMiles
To earn it$6,000 in 90 days$6,000 in 6 months
Est. first-year value*$957$1,032
Est. ongoing value / yr*$-43$32

The Delta SkyMiles® Platinum wins on both fronts: it comes out ahead in year one on the welcome offer and stays ahead every year after. Short term or long, it is the stronger pick on the numbers.

*First-year value counts the welcome bonus, estimated rewards, and annual credits, minus the annual fee; ongoing value is a typical year after. Every point at a flat 1 cent.

Perks, credits, and redemptions

PerksAtmos Rewards SummitDelta SkyMiles® Platinum
Lounge accessYesNone
Annual credits1 listed credits2 listed credits
Points & redemptionsLocked to a single programLocked to a single program

On perks and redemptions, only the Atmos Rewards Summit gets you into airport lounges. Weigh those against the fee, since credits and lounge access only count if you will actually use them.

Transfer partners and point value

Neither card earns transferable points, so redemptions are cash-back or fixed portal value on both, roughly a cent per point. There is no airline or hotel transfer angle to separate them.

Both are mid-premium airline cards with a companion benefit, so it comes down to Alaska versus Delta.

The Summit’s Global Companion Award and 3x dining reward Alaska loyalists. The Delta Platinum’s companion certificate can be worth more than its fee for a domestic Delta flyer, plus free bags. Alaska vs Delta, each with a companion perk.

Pros and cons

Atmos Rewards Summit
Pros
  • 3x dining and elevated Alaska earning
  • A Global Companion Award
  • Premium Alaska and oneworld perks
  • Alaska’s award network
Cons
  • $395 fee, needs Alaska travel
  • Miles locked to Alaska
  • Overkill for occasional flyers
Delta SkyMiles® Platinum
Pros
  • An annual companion certificate (can exceed the fee)
  • Free first checked bag on Delta
  • 3x on Delta and hotels, plus an MQD boost
  • A large SkyMiles bonus
Cons
  • $350 fee, needs Delta travel
  • Miles locked to Delta
  • Companion cert is domestic main-cabin
  • Low earning outside Delta

Where each one wins

CategoryWinnerWhy
AirlineDependsAlaska vs Delta.
Companion benefitSplitAlaska’s Global Companion Award vs Delta’s certificate.
Annual feeDelta Platinum$350 vs $395.
Everyday earningRoughly evenBoth modest outside their airline.
Best forDependsAlaska flyers vs Delta flyers.

The verdict

If you fly Alaska, the Summit’s companion award and dining earning reward that loyalty, with real Alaska volume behind it.

If you fly Delta, the Platinum’s companion certificate can cover its fee on one domestic trip, plus free bags and status boosts. This is Alaska versus Delta: pick the airline you fly, since both are premium co-brands justified only by using their companion perk.

The bottom line
Atmos Summit for Alaska flyers who want a Global Companion Award. Delta SkyMiles Platinum for Delta flyers who’ll use the annual companion certificate.

Read the full reviews

Frequently asked questions

Is the Atmos Rewards Summit or the Delta SkyMiles® Platinum better?
On typical household spending, the Delta SkyMiles® Platinum comes out ahead after its annual fee, by roughly $75 a year with every point valued at a flat 1 cent. But the Atmos Rewards Summit can be the better fit if your spending lines up with its stronger categories. Run both through the Cardocrat calculator to see your own numbers.
Can I have both the Atmos Rewards Summit and the Delta SkyMiles® Platinum?
In most cases yes, as long as you meet each issuer's approval rules (for example Chase's 5/24 rule). Many people hold complementary cards to cover more bonus categories, then pool or redeem the rewards together where the program allows.
Which has the better welcome bonus, the Atmos Rewards Summit or the Delta SkyMiles® Platinum?
As of July 2026, the Atmos Rewards Summit offers 100,000 bonus points + 25,000-point Global Companion Award and the Delta SkyMiles® Platinum offers up to 100,000 skymiles. Welcome offers change often, so confirm the current offer on each card's page before applying.