Newark Liberty International Airport EWR to Porto OPO flight with United

Porto is within the Schengen Area. Passport and visa requirements depend on your nationality. 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 5 h between Newark Liberty International Airport, NJ (EWR) and Porto all year round.

The best events to attend in Porto include:

• São João Festival, a traditional celebration with street parties, fireworks, and grilled sardines
• Festa de São Pedro, a lively festival featuring music, dancing, and local cuisine
• Porto Wine Fest, a showcase of the region's famous wines with tastings and workshops
• Festas de Nossa Senhora da Assunção, a religious festival with processions and cultural activities.

The best holidays to experience in Porto include:

• Carnival, colorful parades and lively street celebrations in February
• Easter, significant religious observances and local traditions in March or April
• Portugal Day, national pride with various cultural activities in June
• Assumption of Mary, a public holiday with local festivities and traditions in August.

The best seasons to visit Porto are Spring or Fall. The best weather to explore Porto is during April-June or September-October.

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.