Amex Platinum offers: Aug. 4 Avios bonus, Marriott deadlines, and the Resy credit rule (2026)

The short list

The cleanest new move is a 30% Membership Rewards transfer bonus to Avios, available through September 27. The urgent checks are hotel offers expiring today and tomorrow: Expedia ends August 4, while the targeted Marriott variants end August 5. Resy has also changed the test for its existing dining credit: the venue must show as eligible in the Resy app or on the website when you pay. 1 2 3

Item	Value and threshold	Act by	Main restriction
Amex → Avios	30% transfer bonus; 1,000 Membership Rewards points become 1,300 Avios	September 27, 2026	British Airways, Iberia, or Aer Lingus Avios; open the logged-in Amex offer before transferring. 1 4
Marriott Homes & Villas	$350 back after $1,000+ in qualifying spend; 35% headline credit rate	September 30, 2026	Add the targeted tile first; book online at Homes & Villas by Marriott Bonvoy. 5
Marriott Bonvoy targeted variants	$150/$375, $100/$400, or $50/$250, depending on the tile	August 5, 2026	Room rate and room charges only; participating properties and exclusions apply. This is a deadline check, not a new universal Platinum benefit. 2 6
Expedia prepaid hotels	10% back, up to $125 total credit on up to $1,250 of eligible spend	August 4, 2026	Use `expedia.com/amex`, choose pay now, and pay in USD; pay-at-property and phone bookings do not qualify. 7
Resy credit rule	Existing credit; no new dollar value or cap is stated in this rule update	Effective August 1, 2026	The venue must carry the eligible-for-Resy-Credit badge at purchase time; eligibility can change. 3

What changed this week

The Avios bonus is the straightforward travel play

American Express is offering a 30% bonus when Membership Rewards points move to British Airways, Iberia, or Aer Lingus Avios. The standard 1:1 transfer becomes 1:1.3, and the published end date is September 27. The public terms do not state a minimum transfer or a bonus cap. 1 4

Activation is account-side: open the logged-in Amex Rewards offer page and confirm the bonus before transferring. A transfer bonus is not a reason to move points speculatively. Find the award first, then transfer the amount you need; the extra 30% does not fix poor award availability or a bad redemption.

Marriott now has two different hotel decisions

The new Marriott Homes & Villas entry is unusually large: spend at least $1,000 in one or more transactions and receive $350 back. The offer runs through September 30, but the payment must fall inside the offer window. It applies to participating Homes & Villas by Marriott Bonvoy properties in the US, Canada, Mexico, Central America, South America, and the Caribbean. Other Marriott brands, gift cards, retail purchases, amenities, and Marriott Bonvoy point purchases are excluded. 5

The public write-up does not name a specific Platinum variant. Treat it as a targeted Amex Offer: add it to the card only if the tile appears in your account, and check the final terms before booking. A split-payment strategy may be possible, but the source presents that as a possibility rather than a guaranteed way to trigger the credit. 5

The separate Marriott Bonvoy hotel variants are the near-term deadline. The reported tiles are $150 back after $375, $100 after $400, or $50 after $250. In pure statement-credit math, those are 40%, 25%, and 20% respectively, before comparing room rates or considering whether the property is excluded. The offer page was updated in July, but the August 5 deadline was surfaced again in the August 2 last-chance tracker, so check the tile rather than treating this as a brand-new August offer. 2 6

Expedia is a use-it-or-lose-it hotel window

The Expedia offer expires today, August 4: 10% back on prepaid hotel purchases, capped at $125 in statement credits on $1,250 of qualifying spend. There is no minimum spend in the published terms. You must start at expedia.com/amex, choose the prepaid or pay-now option, transact in US dollars, and pay Expedia directly. Pay-at-property bookings, phone bookings, flights, car rentals, cruises, packages, activities, and trip insurance are excluded. 2 7

Before using it, compare the final prepaid Expedia price with the hotel's direct rate and cancellation terms. A 10% credit can disappear quickly if the prepaid channel costs more or gives up flexibility.

Leading Hotels of the World is a new transfer option, not a short-lived offer

American Express added Leading Hotels of the World Leaders Club as a Membership Rewards transfer partner at 1,000 Membership Rewards points to 250 Leaders Club points, or 4:1. Free nights start at 4,000 Leaders Club points, which means 16,000 Membership Rewards points at the base ratio. The source also says Platinum cardholders receive complimentary Leaders Club Sterling status and breakfast, while the five pre-arrival upgrades do not apply to award bookings. No expiry date or separate transfer bonus is published. 8

That ratio is not a reason to transfer blindly. Use it when a specific LHW award and the Platinum status benefit make the math work; otherwise, keep Membership Rewards flexible.

Dining and lounge check

The Resy change is now live. American Express's stated rule says a US restaurant or other food-and-beverage establishment must be marked as eligible for the Resy Credit on Resy at the time of purchase. The badge is on the venue's booking page, and American Express says eligibility can change. This is a qualification rule for the existing credit, not a new Amex Offer with a new spend threshold, cap, or expiry. 3

A cardholder report in r/amex captured the same statement language before the change took effect, and the discussion included both broad eligibility checks and questions about edge cases such as Toast-linked purchases. That is useful confirmation that the rule appeared in real accounts, but it does not prove how wide the eligible-venue network is or guarantee that a particular charge will post. Check the badge immediately before paying. 9

I found no new, dated lounge offer in the public trackers reviewed this week. That is a limit of public visibility, not evidence that no eligible Platinum account has a lounge tile. Amex Offers are personalized, and the account view remains the final check for enrollment, card eligibility, and remaining availability. 10 11

Four moves for August 4

Open the Amex Rewards page and confirm the 30% Avios bonus before transferring any points tied to a real award.
If you have a Marriott $150/$375, $100/$400, or $50/$250 tile, add it before the August 5 deadline and verify that the property is not excluded.
Use the Expedia offer only if a prepaid expedia.com/amex booking is cheaper enough after accounting for cancellation rules; today is the last stated day.
Before any Resy charge, open the venue page and capture the eligible badge in the app or on the website. Recheck it if the venue or payment route changes.

The public record covers only offers visible outside the Amex login. For every row above, the final test is the tile on the enrolled US Platinum card, the exact expiration shown there, and the merchant-of-record or booking path used at checkout.