What is the quickest UPS opeartion to send international package?

Based on your personal needs the answer to this question may differ. To give an idea however, the following services are the ones presently provided by UPS: • UPS Next Day Air International ships international packages fastest. This service delivers the next business day to most major cities worldwide.
• UPS Worldwide Express Plus: Delivers by 8:00 AM the next business day to most major lower 48 cities.
• UPS Worldwide Express Saver: Guarantees same-day delivery to most major cities by 11:59 PM.
• UPS Worldwide Expedited: Delivers to most major cities in two business days.
• You can also choose UPS Ground, UPS 2nd Day Air International, or UPS 3 Day Select for international shipping. These options are cheaper but take longer to deliver.
Keep in mind that cargo companies frequently modify their package offerings and services. The best shipping option depends on your budget and urgency.