Carriers and services on this route
Four carriers operate this transatlantic corridor at scale, all using air freight. UPS Worldwide Saver typically offers the best price-to-speed ratio for parcels under 5 kg.
Spain and the United States have a long-standing two-way mailing relationship driven by family ties, study-abroad and a substantial Spanish-speaking population in the US.
Delivery times in detail
Transit times in the calculator are business days from Spanish pickup to US last-mile delivery. The vast majority of variance on this route comes from US customs at the port of entry.
How to pack your parcel for this route
Air freight handling is rougher than ground - every parcel goes through automated sortation belts at Madrid-Barajas, the European hub and the US port of entry. Use a double-wall corrugated box, and for anything fragile use the box-within-box method with 5 cm of cushioning between the inner and outer boxes.
Practical tips for this route
Two route-specific points are worth knowing. First, accurate declared value matters more on this route than any other - US Customs and Border Protection actively flags shipments where the declared value seems implausibly low.
For a complete list of prohibited and restricted items on this route, see the customs section below.