18+ Hotels in Port Isabel, TX
Where You Can Check In at 18, 19 or 20

4 hotels in Port Isabel, TX list a minimum check-in age of 18 on Hotels.com, so travelers aged 18, 19 and 20 can check in. Observed starting prices are $69 at Port Isla Inn and $151 at Executive Inn and Suites per night. Southwind Inn has the best guest rating, 8.4/10 from 57 reviews. Of these, all 4 have a pool and 3 accept pets. Places mentioned near these hotels include Port Isabel Lighthouse, Port Isabel Historical Museum and Pirate's Landing Fishing Pier. Hotel data checked in October 2026.

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

hotels with 18+ check-in
4
lowest starting price, Port Isla Inn
$69
best rating, Southwind Inn
8.4/10
accept pets
3
have a pool
4

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

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Showing 4 of 4 hotels.

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Port Isla Inn allows check-in for 18 year-old guests

Port Isla Inn

8.0/10 1,004 reviews

2.0-star hotel

200 2nd St, Port Isabel, TX 78578, USA

Port Isabel Lighthouse · 2.3 km · 3 min drive

  • Pool
  • Free WiFi
  • Air conditioning

Minimum check-in age: 18

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Parking: Wheelchair-accessible parking · Wheelchair-accessible van parking

Pets: Pets not allowed

Nearby

  • Port Isabel Lighthouse — 2.3 km, 3 min drive
  • Treasures of the Gulf Museum — 2.3 km, 3 min drive
  • Port Isabel Historical Museum — 2.3 km, 4 min drive

From USD 69.00

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

Southwind Inn

8.4/10 57 reviews

2.5-star hotel

600 E Davis St, Port Isabel, TX 78578, USA

Port Isabel Lighthouse · 0.5 km · 5 min walk

  • Pool
  • Free WiFi
  • Air conditioning

Minimum check-in age: 18

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Pets: Pets allowed (2 total)*

Nearby

  • Port Isabel Lighthouse — 0.5 km, 5 min walk
  • Treasures of the Gulf Museum — 0.5 km, 5 min walk
  • Pirate's Landing Fishing Pier — 0.6 km, 7 min walk
Check availability
Casa Rosa Inn allows check-in for 18 year-old guests

Casa Rosa Inn

7.8/10 556 reviews

2.5-star hotel

761 W. Highway 100, Port Isabel, TX 78578, USA

Port Isabel Historical Museum · 1.3 km · 15 min walk

  • Pool
  • Air conditioning

Minimum check-in age: 18

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Parking: Wheelchair-accessible parking

Pets: Pets allowed (dogs and cats only, 2 total, up to 50 lbs per pet)*

Nearby

  • Port Isabel Historical Museum — 1.3 km, 15 min walk
  • Treasures of the Gulf Museum — 1.3 km, 15 min walk
  • Port Isabel Lighthouse — 1.5 km, 17 min walk
Check availability
Executive Inn and Suites allows check-in for 18 year-old guests

Executive Inn and Suites

5.6/10 412 reviews

2.5-star hotel

1411 TX-100, Port Isabel, TX 78578, USA

South Padre Island Golf Club · 7.9 km · 6 min drive

  • Pool
  • Free WiFi
  • Air conditioning

Minimum check-in age: 18

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Pets: Pets allowed (2 total, up to 20 lbs per pet)*

Nearby

  • South Padre Island Golf Club — 7.9 km, 6 min drive
  • Port Isabel Lighthouse — 7.1 km, 9 min drive
  • Port Isabel Historical Museum — 7.1 km, 9 min drive

From USD 151.00

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Nearby Cities With 18+ Hotels

South Padre Island 7 mi · 25 hotels
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Harlingen 29 mi · 6 hotels
Weslaco 46 mi · 4 hotels
McAllen 63 mi · 11 hotels
Kingsville 107 mi · 4 hotels
Corpus Christi 116 mi · 16 hotels
Port Aransas 122 mi · 4 hotels
Rockport 137 mi · 3 hotels
Beeville 165 mi · 4 hotels
Laredo 173 mi · 13 hotels
Three Rivers 176 mi · 5 hotels
San Antonio 248 mi · 92 hotels
Houston 282 mi · 145 hotels
Dallas 467 mi · 25 hotels

See all Texas cities with 18+ hotels

Port Isabel Hotel Check-In FAQ

Can you check into a hotel in Port Isabel at 18?

Yes. 4 hotels in Port Isabel 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 Port Isabel?

Often, yes. Of the 4 hotels listed here, 4 accept debit cards and 4 accept cash, according to Hotels.com, including Southwind Inn, Port Isla Inn and Casa Rosa 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 Port Isabel?

Check-in starts at 3 PM at all 4 hotels listed here with a check-in time. Check-out is usually at 11 AM.

Which 18+ hotel is closest to Port Isabel Lighthouse?

Southwind Inn is the closest of the hotels listed here, 0.3 mi away, followed by Casa Rosa Inn (0.9 mi) and Port Isla Inn (1.4 mi).

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

Port Isla Inn had the lowest observed starting price, from $69 per night when we checked in October 2026. Prices change with dates: select your dates to see the current price on Hotels.com.