How to Send a Parcel to California from the UK

The Short Answer

Sending a parcel from the UK to California is typically 5 to 8 business days on UPS Worldwide Economy DDP through a platform like TradeWind, from £12.80 for a 1kg parcel. California is 1 to 2 days slower than the East Coast — geography matters even on transcontinental shipping.

California also has stricter product rules than most US states (Prop 65, agriculture inspections), so it pays to know what does and does not need extra care.

California vs East Coast Transit Times

The US is wide. Transit times from the UK reflect that:

• East Coast (NYC, NJ, Boston): 3 to 6 days on UPS WWE
• Texas, Atlanta, Chicago: 4 to 7 days on UPS WWE
• California, Pacific Northwest, Arizona: 5 to 8 days on UPS WWE

Express services compress this somewhat — UPS Express Saver and DHL Express deliver to California in 2 to 3 days versus 1 to 2 to the East Coast.

California Pricing on Common Services (2026)

Representative 2026 prices for a 1kg parcel from the UK to a Los Angeles or San Francisco residential address:

Same prices apply as for East Coast — carriers do not charge more for California, just take longer. See the 1kg and larger parcel guides for weight-specific pricing.

California-Specific Customs Considerations

Proposition 65 — chemical warnings

California requires warnings on products containing any of 900+ listed chemicals at thresholds the state deems harmful. UK sellers most affected:

• Cosmetics and personal care — some preservatives, dyes, fragrance components
• Jewellery — lead, cadmium in lower-priced pieces
• Children’s products — strict thresholds on phthalates, lead, BPA
• Some food and dietary supplements — heavy metals, processing chemicals
• Textiles and leather — certain dyes and treatments

The actual enforcement risk is moderate for small-volume UK sellers — Prop 65 lawsuits typically target US-domiciled retailers. But for high-volume DTC or B2B to California retailers, this matters.

Agricultural inspection (CDFA)

California has its own agricultural border checks. Shipments containing plants, seeds, certain raw foods, untreated wood, and some bee products may face additional CA-level inspection on top of USDA federal checks.

Practical impact for UK sellers: rare. But if you sell anything botanical, this is the extra layer to be aware of.

State sales tax

California requires out-of-state sellers (including international) to collect CA sales tax above an annual threshold of $500,000 in CA sales. Below that, you generally do not need to register or collect. This is separate from federal customs duty and is the seller’s obligation, not handled by the carrier.

For most UK sellers shipping to California, you are well below this threshold and can ignore it. If you scale into seven-figure US sales, talk to a US tax advisor about a sales tax registration in CA and other major states.

LAX and SFO Customs Clearance

UK to California parcels typically clear customs at:

• LAX (Los Angeles International Airport) — main entry point for express and direct services
• SFO (San Francisco International) — secondary entry for Bay Area express
• Louisville (SDF) — UPS Worldwide Economy WorldHub for clearance, then domestic routing to CA

Clearance at LAX is generally efficient but slightly slower than JFK due to volume and geography. Holds are typically caused by:

• Prop 65 product flag (rare but happens)
• Restricted item triggers (leather, certain cosmetics, exotic ingredients)
• Agricultural items missing CDFA-compatible paperwork
• Wrong HS codes or vague descriptions

TradeWind keeps your customs data consistent across shipments so the same product clears the same way every time.

California Geography — What to Plan For

California is huge. Some delivery context:

• Los Angeles metro — major UPS, FedEx, DHL hubs; smooth delivery
• San Francisco Bay Area — fast delivery; some hills and walk-ups
• San Diego — straightforward; close to LAX hub
• Sacramento and Central Valley — slightly longer transit
• Far Northern California (rural, Humboldt, Trinity) — add 1 to 2 days
• Eastern Sierra and remote — small Delivery Area Surcharges may apply

For B2B shipments to California offices and warehouses, see the B2B USA shipping guide — many commercial buildings have receiving dock hours that limit afternoon deliveries.

CA Delivery Quirks

Gated communities

Common in CA suburbs. Couriers usually have gate codes on file for major neighbourhoods, but new builds or small communities may not. Best mitigation: ensure customer phone number is captured at checkout.

Apartment complexes

Less density than NYC, but LA and San Francisco both have substantial multi-unit residential. Same advice as NYC — encourage unit numbers and signup for UPS My Choice / FedEx Delivery Manager.

Wildfire seasons

Late summer and autumn California can see service disruptions due to wildfires (road closures, evacuated zip codes). Carriers update affected zip codes in their tracking systems. Expect 1 to 3 day delays in affected periods.

Practical Steps for California Shipping

1. Default to UPS Worldwide Economy DDP — best value, full DDP customs handling
2. Plan for 5 to 8 days rather than expecting East Coast speeds
3. Check Prop 65 if you sell cosmetics, jewellery, or children’s products at scale
4. Capture complete addresses — unit numbers, gate codes, phone numbers
5. Watch wildfire periods (Aug to Oct) for service alerts
6. Use Royal Mail PDDP for PO Boxes (UPS cannot deliver to PO boxes)

The Bottom Line

California is a major US market for UK sellers — second only to NY/NJ for most ecommerce brands. The main differences vs East Coast:

• 1 to 2 days slower transit
• LAX clearance instead of JFK
• Prop 65 awareness for certain product categories
• Wildfire-season service disruptions in autumn

UPS Worldwide Economy DDP at £12.80 for 1kg remains the best value default. For high-volume scaling into California, factor Prop 65 and potential CA sales tax registration into your roadmap.

Sources

• California OEHHA — Prop 65
• US Customs & Border Protection