1. US CBP Mandatory First-Port Baggage Claim: By US federal regulation, arriving internationally at Ontario International Airport (ONT) connecting to any US domestic sector requires claiming all checked baggage for customs clearance, even if tag displays final destination. 2. Baggage Re-Drop: Immediately after clearing customs, drop your through-tagged bags onto the dedicated 'Connecting Flights Baggage Drop' belt. 3. Domestic Connections: Domestic-to-domestic through-ticket bags transfer automatically.

1. Midnight Transportation: At Ontario International Airport (ONT), while daytime rail and municipal buses typically conclude service around midnight, official 24-hour taxi ranks and app-based rideshare operate continuously to meet scheduled late-night arrivals. 2. Overnight Information: If awaiting early morning transit, verify terminal public access policies and 24-hour airport hotel courtesy shuttles.

1. Terminal Assignments at Ontario International Airport (ONT): Operates multiple passenger terminals organized by carrier alliances and flight sectors. Long-haul international flights depart from the dedicated International Terminal, while domestic services use assigned carrier terminals. 2. Codeshare Advice: For codeshare flights, always depart from the terminal of the OPERATING CARRIER. Check your boarding pass or official airport flight displays.

1. Single Facility Architecture: Ontario International Airport (ONT) is a single centralized passenger terminal facility without remote separate terminals. 2. Inter-Gate Walking: All gates, arrival halls, and transfer desks are contained within the same building. Walking between any two gates takes only 1 to 3 minutes; no automated transit train or shuttle bus is required.

1. Major Hub MCT Windows: At Ontario International Airport (ONT), same-terminal domestic transfers require at least 60-75 minutes; inter-terminal transfers require a minimum of 90 minutes. 2. International Inbound Transfers: Any connection involving customs, baggage reclaim, and security rescreening requires at least 120 to 150 minutes (2 to 2.5 hours) buffer.

1. Major Hub Arrival Window: At Ontario International Airport (ONT), arrive at least 3 to 3.5 hours prior to scheduled departure for international/long-haul flights, and at least 2 hours prior for domestic services. 2. Strict Cut-Off Deadlines: Ticket counters and checked baggage drop close strictly 60 minutes prior for international and 45 minutes prior for domestic flights. Boarding gates close 15-20 minutes before departure. 3. Peak Hour Buffer: Allow an extra 30 minutes during morning departure banks (06:00-08:30) and major holiday weekends.

1. North American Rapid Transit: Ontario International Airport (ONT) connects via light rail, rapid transit subways, or direct airport express shuttles to central downtown transportation centers. 2. Highway & Taxis: Highway driving to downtown typically takes 20 to 40 minutes, with regulated curbside taxi ranks staffed by airport dispatchers.

1. US Department of Transportation (DOT) Cash Refund Mandate: At Ontario International Airport (ONT), significant delays (3+ hours domestic, 6+ hours international) or cancellations entitle travelers to a 100% full refund in the original form of payment if declining alternative travel. 2. Amenities: Major US carriers commit to meal vouchers and hotel accommodations for controllable overnight disruptions; initiate digital rebooking inside the airline app.

1. International Arrivals (US CBP Mandate): All passengers arriving on international flights connecting to domestic US sectors at Ontario International Airport (ONT) must clear CBP passport control and undergo mandatory complete TSA security rescreening. 2. Domestic Same-Concourse Transfers: Domestic-to-domestic connecting passengers remaining inside the airside sterile zone do not reclear security unless transferring between unconnected terminals.

1. Major Hub Screening Times: At busy global gateway Ontario International Airport (ONT), regular checkpoint screening takes 15 to 25 minutes during off-peak hours, and 30 to 45 minutes during morning and evening rush banks (06:30-09:00 and 17:00-19:30). 2. Priority Access: Priority fast track lanes (SkyPriority, Star Gold, Fast Track, TSA PreCheck where applicable) take 5-10 minutes. Prepare liquids and laptops separately.

1. North American TNC Regulations: Uber and Lyft operate from designated 'Rideshare / TNC Pickup Zones' located on outer commercial curbs outside Baggage Claim or within adjacent terminal parking structures at Ontario International Airport (ONT). 2. Passenger Instructions: Follow terminal overhead signs to your app-designated door, lane, or numbered loading stall.

1. Consolidated Rental Car Facility (CONRAC): Major corporate brands (Hertz, Avis, Enterprise, Budget, National, Alamo) at Ontario International Airport (ONT) operate from an integrated off-terminal Rental Car Facility. 2. Transit & Pickup: Follow 'Rental Cars' directional signs outside Baggage Claim to board the free 24/7 automated people mover (APM) or dedicated express shuttles (3-5 mins ride).

1. Multi-Tiered Hub Parking: Ontario International Airport (ONT) features multi-level covered Terminal Garages (2-5 minutes walk from check-in) and dedicated outer surface Economy / Long-Term Parking lots. 2. Shuttles & Pricing: Economy lots are connected via free 24/7 shuttles (every 5-10 mins) or automated people movers. Short-term parking offers hourly rates, while long-term lots provide capped 24-hour daily rates with online reservation discounts.

1. Air Carrier Access Act (ACAA - 14 CFR Part 382) Compliance: At Ontario International Airport (ONT), carriers are legally obligated to provide free comprehensive wheelchair boarding assistance. Notify your airline at least 48 hours in advance. 2. Facilities: Terminal features ADA-compliant ramps, accessible family restrooms, and post-security Service Animal Relief Areas (SARA), with wheelchair escorts assisting through TSA priority lanes.

The top nonstop destinations from ONT over the next seven days are Phoenix Sky Harbor International Airport (PHX), Denver International Airport (DEN), Harry Reid International Airport (LAS), Dallas Fort Worth International Airport (DFW), Seattle-Tacoma International Airport (SEA), Sacramento International Airport (SMF), Oakland San Francisco Bay Airport (OAK), San Francisco International Airport (SFO), San Jose Mineta International Airport (SJC), Salt Lake City International Airport (SLC).