Ontario, CA ONT to San Juan SJU Flights

Since neither Ontario, CA nor San Juan are in the Schengen Area, passport requirements depend on the specific immigration rules of USA and Puerto Rico. Entry and visa requirements can be subject to change. For the latest information, check with your destination's embassy or consulate.

There is a time difference of 4 h in winter and 3 h in summer between Ontario, CA and San Juan.

The best events to attend in San Juan include:

• Fiestas de San Juan, a vibrant celebration marking the summer solstice with bonfires, music, and traditional food
• La Fiesta de la Calle San Sebastián, a lively street festival featuring parades, live music, and local artisans
• San Juan International Film Festival, an annual event showcasing independent films from around the world.

The best holidays to experience in San Juan include:

• Three Kings Day, vibrant parades and cultural festivities celebrating the Epiphany
• Puerto Rico Constitution Day, a chance to experience local pride with various events and activities
• Labor Day, pleasant weather and fewer crowds make it ideal for exploring the city.

The best seasons to visit San Juan are Winter or Spring. The best weather to explore San Juan is during December-April.

For international flights we recommend to arrive 2.5 to 3 hours before departure. Please check the website of your departure airport if in doubt. Some airports may offer booking time slots for security checks or offer additional information on when to get there based on time of day.

Most airlines permit carry-on bags that fit within specific dimensions (e. G. 22 x 14 x 9 inches or 56 x 36 x 23 cm), including handles and wheels. Bags must fit in the overhead bin or under the seat in front of you.

Many airlines impose weight limits, commonly ranging between 7 kg (15 lbs) and 12 kg (26 lbs).
Typically, passengers are allowed one carry-on bag and one personal item (for example a purse, laptop bag, or backpack). Personal items must fit under the seat in front of you.
Budget Airlines (like Ryanair or Wizz Air) have stricter size and weight limits, often requiring fees for larger carry-ons. Full-Service Airlines have more lenient policies, sometimes including more spacious dimensions or higher weight limits depending on your ticket class.

The list of items prohibited on an airplane varies by country and airline, but in general, the following items are not allowed in carry-on or checked baggage: Weapons and self-defence items, sharp objects, flammable materials, explosives, toxic substances, or liquids over 100ml (except for medications and baby essentials). In checked baggage, firearms (without authorization), explosives, large lithium batteries, and hazardous chemicals are prohibited. Electronic cigarettes must be in carry-on bags, while alcohol and dry ice have restrictions. Always check with your airline for specific regulations.