18+ Hotels in Seaside, CA
Where You Can Check In at 18, 19 or 20

3 hotels in Seaside, CA list a minimum check-in age of 18 on Hotels.com, so travelers aged 18, 19 and 20 can check in. Observed starting prices begin at $58 at Gateway Lodge, with a median of $66 per night. Seaside Inn has the best guest rating, 8.0/10 from 1,004 reviews. Of these, 1 accepts pets. Places mentioned near these hotels include Eolian Dunes Preserve, Monterey State Beach and Fort Ord Dunes State Park. Hotel data checked in November 2026.

Policies can change: confirm the minimum check-in age with the hotel before booking.

hotels with 18+ check-in
3
lowest starting price, Gateway Lodge
$58
median starting price per night
$66
best rating, Seaside Inn
8.0/10
accepts pets
1

Dates are passed to Hotels.com to check availability and current prices.

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Showing 3 of 3 hotels.

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Gateway Lodge allows check-in for 18 year-old guests

Gateway Lodge

7.4/10 895 reviews

2.0-star hotel

1909 Fremont Blvd, Seaside, CA 93955, USA

Eolian Dunes Preserve · 0.6 km · 6 min walk

  • Air conditioning

Minimum check-in age: 18

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Parking: Wheelchair-accessible parking · 2 on-site accessible parking spaces · Wheelchair-accessible van parking

Pets: Pets allowed (dogs and cats only)*

Nearby

  • Eolian Dunes Preserve — 0.6 km, 6 min walk
  • Monterey State Beach — 0.6 km, 6 min walk
  • Fort Ord Dunes State Park — 1.4 km, 16 min walk

From USD 58.00

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Sealamp Inn allows check-in for 18 year-old guests

Sealamp Inn

7.0/10 1,006 reviews

2.0-star hotel

2201 Del Monte Blvd, Seaside, CA 93955, USA

Eolian Dunes Preserve · 0.3 km · 3 min walk

  • Free WiFi
  • Air conditioning

Minimum check-in age: 18

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Pets: Pets not allowed

Nearby

  • Eolian Dunes Preserve — 0.3 km, 3 min walk
  • Monterey State Beach — 0.7 km, 8 min walk
  • Fort Ord Dunes State Park — 0.9 km, 10 min walk

From USD 66.00

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Seaside Inn allows check-in for 18 year-old guests

Seaside Inn

8.0/10 1,004 reviews

2.0-star hotel

1986 Del Monte Boulevard, Seaside, CA 93955, USA

Eolian Dunes Preserve · 0.5 km · 5 min walk

  • Free WiFi
  • Air conditioning

Minimum check-in age: 18

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Parking: Wheelchair-accessible parking

Pets: Pets not allowed

Nearby

  • Eolian Dunes Preserve — 0.5 km, 5 min walk
  • Monterey State Beach — 0.5 km, 5 min walk
  • Fort Ord Dunes State Park — 1.1 km, 13 min walk

From USD 105.00

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Nearby Cities With 18+ Hotels

Monterey 4 mi · 19 hotels
Pacific Grove 6 mi · 9 hotels
Carmel-by-the-Sea 7 mi · 11 hotels
Salinas 11 mi · 3 hotels
Santa Cruz 27 mi · 14 hotels
Morgan Hill 37 mi · 7 hotels
San Jose 47 mi · 24 hotels
Cupertino 50 mi · 2 hotels
Santa Clara 52 mi · 13 hotels
Sunnyvale 54 mi · 8 hotels
Mountain View 56 mi · 6 hotels
Palo Alto 56 mi · 15 hotels
San Francisco 86 mi · 122 hotels
Los Angeles 259 mi · 132 hotels
San Diego 374 mi · 69 hotels

See all California cities with 18+ hotels

Seaside Hotel Check-In FAQ

Can you check into a hotel in Seaside at 18?

Yes. 3 hotels in Seaside list a minimum check-in age of 18 on Hotels.com. Policies can change, so confirm with the property before booking and bring a government-issued photo ID.

Can I check in without a credit card in Seaside?

Often, yes. Of the 3 hotels listed here, 3 accept debit cards and 3 accept cash, according to Hotels.com (Seaside Inn, Gateway Lodge and Sealamp Inn). Most hotels still hold a deposit for incidentals at check-in, so call ahead to confirm they will take it without a credit card.

What time is check-in at 18+ hotels in Seaside?

Check-in starts between 3 PM and 4 PM at the hotels listed here, most often at 3 PM (2 of 3). Check-out is usually at 11 AM.

Which 18+ hotel is closest to Eolian Dunes Preserve?

Sealamp Inn is the closest of the hotels listed here, 0.2 mi away, followed by Seaside Inn (0.3 mi) and Gateway Lodge (0.4 mi).

What is the cheapest hotel in Seaside for 18-year-olds?

Gateway Lodge had the lowest observed starting price, from $58 per night when we checked in November 2026, against a median of $66 for the 3 hotels with a listed price. Prices change with dates: select your dates to see the current price on Hotels.com.