Guests staying at Houston Airport Marriott at George Bush Intercontinental enjoy an outdoor pool, a 24-hour gym, and free WiFi in public areas. Parking is USD 19 per day (USD 34 per day for valet parking)—but if you prefer not to drive, catch a ride in the free airport shuttle (available 24 hours). The front desk has multilingual staff on hand 24/7 to help with concierge services, dry cleaning/laundry, and securing valuables. Additional amenities include conference space, a 24-hour business center, and express check-out.