Which Card Should You Actually Buy Delta Tickets With?

The Delta SkyMiles cards are worth holding if you check bags. That case is straightforward and we have run the numbers on it.

This post is about a different question: once you hold one, which card should the ticket actually go on? The usual answer is Amex Platinum, because it earns 5x on airfare against the Sapphire Reserve's 4x. That answer leaves out the trip protections, which diverge more than the earn rates do.

Compare your wallet against your real spending →

The earn rates, and why they settle less than they look

Two things follow immediately. The Delta cards are the worst way to earn on Delta airfare, which is not a criticism of them; they earn their fee on bags and boarding, not multipliers. And SkyMiles are the weakest currency in the table. The Points Guy, Upgraded Points, CardRatings and Frequent Miler all place SkyMiles below both transferable currencies: Frequent Miler's reasonable redemption value is 1.1 cents against 1.5 for Membership Rewards and Ultimate Rewards, and The Points Guy's more optimistic figures are 1.2 against 2.0 and 2.05. One dissent worth knowing: NerdWallet publishes a baseline and a maximized number, and on the baseline tier it puts Membership Rewards and Ultimate Rewards at 1.0 cent against SkyMiles at 1.2, which inverts the ranking. That is a methodology difference, since NerdWallet anchors transferable currencies to a single best partner rather than a blended basket, but it means the ranking is a consensus rather than a universal.

On a $1,200 Delta ticket, Platinum's 5x earns 6,000 Membership Rewards and the Reserve's 4x earns 4,800 Ultimate Rewards. At a conservative 1.5 cents that is $90 against $72. The gap is about $18.

One assumption is doing work there: that your Reserve travel credit is already spent. Chase's Rewards Program Agreement states that "any purchases that qualify for the $300 Annual Travel Credit will not earn points." If you still have the full credit, the first $300 of the fare earns nothing on the Reserve, so it earns 3,600 points on the remaining $900 and the gap widens to roughly $36. You also get $300 back, which swamps the points question entirely, though you would have collected that credit on some other travel purchase anyway.

Hold that number. The rest of this post is about protections that differ enough to be worth more than $18 to some readers and nothing at all to others, which is the actual decision.

The eligibility gap nobody mentions

Both cards carry trip protections. They do not attach on the same terms, and the difference is a single phrase.

The Sapphire Reserve's Guide to Benefits:

"The Covered Traveler is covered when You charge all or a portion of the cost of the Common Carrier fare to Your Covered Card and/or use redeemable Rewards."

Amex's Trip Delay and Trip Cancellation guides:

"You must charge the full amount of a Covered Trip to your Eligible Card or in combination with your Eligible Card and accumulated points on your Eligible Card or redeemable certificates, vouchers, coupons, or discounts awarded from a frequent flyer program or similar program."

Read that ending carefully, because it does real work. Amex wants the full amount covered rather than any portion, but it counts frequent-flyer vouchers and certificates toward that full amount. A Delta eCredit is a plausible fit, though the claims administrator interprets the policy and we have not seen a decided case.

Amex's baggage coverage is stricter, and that is where the two cards genuinely part company. The Baggage Insurance Plan requires an eligible payment for the "Entire Fare" and excludes fares where "other Loyalty Programs (i.e. Non-American Express)" were redeemed "in part or full towards the fare," naming frequent flyer miles as the example. So SkyMiles toward the fare can break baggage coverage while leaving trip delay intact.

The practical summary is that these are four benefits with three different payment rules, and no single sentence covers them:

Amex Platinum has no baggage delay coverage

This is the sharper point, and it is easy to verify: Amex's Baggage Insurance Plan covers baggage loss and damage. It contains no delay provision.

The Sapphire Reserve pays $100 a day for up to five days when your bag is delayed more than six hours.

Now put that next to who is reading. The Delta cards justify their fee through checked bags. Delta charges $45 for a first bag and $55 for a second, each way. The person for whom a Delta card makes sense is by definition a person putting bags in the hold, which is exactly the person who will one day stand at a carousel in a city where their clothes are not.

Recommending Platinum to that reader trades roughly $18 of extra points on a $1,200 fare for the only coverage that pays out while a checked bag is merely late, which is far more common than losing one outright.

On lost or damaged bags the headline numbers flatter Chase more than they should. Amex's checked-bag limit is lower, but its carry-on limit and its all-in per-trip cap are both $3,000, matching Chase. The bigger difference is how they value what you lost: Amex pays replacement cost, Chase pays actual cash value, which is replacement cost less depreciation. On a suitcase of used clothing that gap can exceed the difference in the caps. Both apply category sublimits, structured differently: Chase runs two $500 buckets for jewelry and for electronics, while Amex runs one $1,000 bucket over a wider "high risk" list that also sweeps in sporting equipment and computers.

Three honest qualifications, because a coverage limit is not a dollar of value:

A $500 cap is not worth $500. What it is worth is the chance you file an eligible claim, times the expenses you would otherwise eat, times the chance the claim is paid. For most people in most years that is a small number. The right comparison is not "$18 against $500," it is "$18 against how much you want this particular tail covered."

The airline pays first. Both cards say so outright: the Reserve's baggage delay is "secondary and payable on an excess basis," and Amex's baggage plan answers "Yes, it is secondary." Delta reimburses reasonable expenses at a guideline of $50 a day for the first five days, and its own footnote says that figure is "NOT daily limits or a cap." Chase's claim checklist asks for the carrier's settlement or denial letter, which tells you the intended order of operations. Card coverage fills the gap the airline leaves; it is not the first payer.

Trip delay covers a closed list of causes on both cards. Neither pays for every six-hour delay, and crew shortages and air traffic control are the usual gaps in both.

Where the Reserve's edge is larger than the baggage line suggests, and where it is not:

Per traveler versus per trip. The Reserve's trip delay is "$500 per Covered Traveler per Trip." Amex's is "$500 per Covered Trip" plus "2 claims per Eligible Card per 12 consecutive month period." On the same delayed flight, a family of three can claim up to $1,500 on the Reserve against $500 on Amex.

One-way trips. Chase defines a Trip as "a round trip or one way Common Carrier fare." Amex's Covered Trip must return you to your city of departure, though it may be ticketed as two one-ways. A genuine one-way is covered by Chase and not by Amex.

One point where Amex is broader. Chase's definition of Rewards requires that they were "accumulated by You through use of a JPMorgan Chase Bank, N.A. and/or its affiliates sponsored Rewards program." Amex trip delay accepts outside frequent-flyer certificates and vouchers. So on the narrow question of redeeming a non-issuer currency toward the fare, Amex's trip-delay rule is the more permissive of the two.

One limit on the Reserve worth knowing: its baggage delay states plainly that "there is no coverage when the Covered Traveler returns to their point of origin." The benefit is for being stranded away from home, not for a bag that shows up late at the end of your trip.

The verdict on payment

If you check bags or travel as a family, the Sapphire Reserve is usually the better payment card. You give up roughly $18 of rewards on a $1,200 fare, more if your travel credit is unspent, and you gain baggage-delay coverage Amex does not offer, a per-traveler rather than per-trip delay cap, and coverage that attaches on a partial charge. Whether that trade is worth it comes down to how much you want that tail covered, which is a judgment call rather than an arithmetic one. If you carry the $95 Sapphire Preferred instead, its baggage delay and lost luggage caps are identical to the Reserve's, so the same logic applies at a fraction of the fee.

If you travel carry-on only and pay the whole fare on one card, Platinum's 5x is the better card. No checked bags means no baggage-delay exposure, the extra point is real, and Amex's trip-delay terms are the more permissive of the two about outside frequent-flyer certificates.

Either way, do not put Delta airfare on the Delta card for the rewards. 2x or 3x SkyMiles is the weakest combination of rate and currency available to you.

Except when the Delta card is the only card that works

"Weakest for rewards" is not "never," and there are cases where the choice is not yours:

Pay with Miles takes the decision away. If you use SkyMiles to knock down part of a cash fare, Delta's own terms say to "use your Card to pay for the remaining ticket price." The remainder goes on a Delta Amex or the booking is not Pay with Miles. Note this also means the full fare was not charged to one card, which is exactly the scenario Amex's baggage plan excludes. Miles + Cash and award-ticket taxes work differently: those are award tickets and accept any form of payment Delta takes.

Status progress. Delta Platinum earns 1 MQD per $20 of card spend and Reserve 1 per $10, both with a $2,500 MQD Headstart. If you are chasing Medallion status, the airfare charge is doing a second job that no flexible card can do.

A welcome or targeted offer. A large signup bonus or a targeted spend offer can dwarf the base-earn difference for one year. Take the bonus, then go back to the better everyday answer.

See which card in your wallet wins for a given purchase →

The wrinkle: does the bag benefit require paying with the Delta card?

There is a strategy circulating that says you can hold a Delta card for the bags and pay with Platinum or the Reserve for the points. We cannot tell you whether it works, because Delta's own page states the requirement two different ways.

On a single Delta page, the headline says the benefit applies to "Delta flights booked with your Card." The how-it-works steps immediately below say to "include your SkyMiles number in your reservation by providing it when booking your flight, adding it when checking in, or looking up your itinerary." You cannot retroactively change how a ticket was paid for, so those steps only make sense if payment method is irrelevant. Amex's own explainer manages to state both conditions at once.

The governing benefit terms sit behind an Amex login and are not publicly readable, so nobody writing about this from the outside can settle it, including us.

Our position: if the checked bags are why you hold the card, book with the card. The downside of being wrong is $90 to $200 per trip in bag fees against roughly $18 of extra points. That is not a close bet, and it is the same conclusion we reached when Alaska's terms were unambiguous about it.

Two Delta claims worth correcting

The second free bag does not cover your family. Delta's June 4, 2026 refresh added a second checked bag on domestic flights to Gold, Platinum and Reserve with no fee increase, and several write-ups reported it as covering the cardmember plus eight companions. Delta's own wording is narrower: "the second bag of each Basic Card Member traveling in the reservation." The first bag covers up to eight companions. The second covers cardmembers only. For a family of four with one cardholder, that is five free bags, not eight.

Delta SkyMiles Blue has no free checked bag, despite occasional claims otherwise. Delta's qualifying-card list names Gold, Platinum and Reserve, personal and business. Blue is absent, and it gets no TakeOff 15 either.

What about booking through Chase Travel at 8x?

The Reserve earns 8x through Chase Travel against 4x booking direct, which on a $1,200 ticket is 4,800 extra points, roughly $72 at 1.5 cents. That is a real sum, larger than the Platinum-versus-Reserve gap this whole post has been about.

The cost is servicing. Delta's policy is explicit: "If you purchased a ticket from a third-party travel site or agency and you need to make a change or cancellation, please refer directly to your travel agent." Delta's own 24-hour risk-free cancellation "does not apply to travel agency tickets," so that specific protection is off the table and you are relying on whatever Chase Travel's cancellation policy gives you instead. The federal 24-hour reservation requirement does not fill the gap either. DOT states plainly that it "does not apply to tickets booked through online travel agencies, travel agents, or other third-party agents," because the rule binds carriers rather than ticket agents. Chase publishes no independent 24-hour guarantee of its own; its cancellation page says most airline tickets booked through Chase Travel are "subject to the airline's specific cancellation and change policies." So read the fare rules before you book, because neither the airline's own courtesy window nor the federal rule is behind you. During irregular operations Delta will still reaccommodate you, but voluntary changes and refunds route back to Chase, which means a second queue on exactly the day both call centers are drowning.

The instinct to reserve the portal for cheap tickets is backwards on the rewards side, since the extra points scale with the fare. Judge the itinerary instead: simple, nonstop, booked well ahead, and unlikely to change favors the portal. Connections, tight timing, eCredits in play, or a trip you may need to move favors booking direct, whatever the price.

Card terms verified September 3, 2026 against Delta's published pages, Chase's product page, and Amex's published Guide to Benefits documents. Amex's card-specific benefit pages require a login and could not be checked directly. Benefits change; confirm current terms before applying.