Marriott Ends Sonder Partnership After ‘Default,’ Cuts 2025 Net Rooms Growth Outlook to ~4.5% — What Travelers & Investors Need to Know (Nov 10, 2025)

Published: November 10, 2025

Summary: Marriott International has terminated its licensing agreement with short‑term‑rental operator Sonder after a “default,” removed Sonder listings from Marriott Bonvoy channels, and trimmed its 2025 net rooms growth outlook to ~4.5%. Here’s the latest on guest impacts, financial guidance, and what to do if you had an upcoming stay.

What happened

Marriott International said its licensing agreement with Sonder “is no longer in effect due to Sonder’s default,” ending a tie‑up that had brought apartment‑style Sonder properties into Marriott’s distribution and loyalty ecosystem. Sonder listings have been pulled from Marriott.com, the Marriott Bonvoy app, and call‑center channels. 1

In parallel coverage, Reuters noted the agreement had originally been announced in 2024 and was expected to add more than 9,000 Sonder units to Marriott’s system; Sonder also boosted its liquidity by about $146 million at the time. As of this weekend’s announcement, Marriott said Sonder is no longer Bonvoy‑affiliated, and Sonder did not immediately comment. 2

Marriott’s updated 2025 outlook

Following the removal of Sonder rooms from its system, Marriott now expects 2025 net rooms growth to approach ~4.5%. The company said no other metrics from its November 4, 2025 outlook change. Reuters also contrasted the update with Marriott’s guidance from last week, which had room growth “approaching 5%.” 3

How travelers are being affected today

Consumer reporting today highlights real‑time disruption for some guests. Business Insider describes travelers receiving abrupt cancellation notices—some near check‑in or mid‑stay—while Marriott has said online that guests who booked Sonder through Marriott channels will receive full refunds and information on possible rebooking at other Bonvoy properties. 4

Marriott’s press statement adds that the company will contact guests who booked through Marriott channels to address reservation needs; travelers who booked Sonder stays via third‑party online travel agencies should contact those organizations directly. 1

Why this matters

The Marriott–Sonder arrangement had aimed to expand Marriott’s apartment‑style footprint quickly by licensing parts of Sonder’s portfolio while making those stays bookable for Bonvoy members. Ending the deal removes those units from Marriott’s pipeline and distribution, trimming 2025 rooms growth while keeping the rest of the financial framework unchanged for now. Trade and industry outlets across the travel sector have been updating readers on the implications throughout today. 3

If you booked a Sonder stay via Marriott, do this

1. Watch your email and app notifications. Marriott says it will proactively contact guests who booked through its channels (Marriott.com, Bonvoy app, worldwide reservations). 1
2. For OTA bookings, contact the OTA. If you used a third‑party agency or site, Marriott directs guests to that organization for next steps. 1
3. Ask about refunds and rebooking help. Business Insider reports Marriott has indicated refunds for affected bookings made through Marriott channels, with potential to rebook at other Bonvoy properties. Keep records of any rate differences. 4
4. Monitor elite credit and points. While individual experiences vary, some travelers have reported points/elite credits posting for completed stays tied to Sonder properties earlier this month; monitor your account and follow up with Marriott if needed. 5

Timeline at a glance

• 2024: Sonder and Marriott announce a licensing agreement to bring apartment‑style units into Marriott’s system. 2
• Early 2025: Integration begins; Sonder inventory becomes visible in Marriott channels for some markets and eligible for Bonvoy earning/redemption. 5
• Nov 9, 2025: Marriott terminates the agreement, citing Sonder’s default; removes Sonder from Bonvoy. 1
• Nov 10, 2025: Trade and consumer outlets continue coverage of guest impacts and Marriott’s guidance update. 6

Investor context & Sonder’s position

Reuters underscores the scale of Sonder’s earlier ambitions and funding—plus the dramatic swing since: the company agreed to go public via SPAC at around a $2.2 billion valuation in 2021, yet now carries a market value near $6.8 million, according to LSEG data. 2

The bottom line

Marriott’s swift exit from the Sonder arrangement removes apartment‑style supply from its near‑term growth tally and introduces short‑term friction for affected travelers. But beyond revising net rooms growth to ~4.5%, Marriott says the rest of its 2025 outlook remains intact. Guests with upcoming Sonder stays booked via Marriott should expect direct outreach from the company and should be prepared to seek refunds or rebooking alternatives as needed. 3

Sources & further reading today

• Reuters: Termination announcement & prior Sonder context. 2
• Marriott (PR Newswire): Termination statement to guests; Financial outlook update. 1
• Business Insider: On‑the‑ground guest disruption, refund/rebooking notes. 4
• The Points Guy: Integration background and traveler perspective. 5
• Travel and Tour World / Skift: Ongoing industry coverage and outlook implications. 6

This article reflects developments through Monday, November 10, 2025.