Shipping to Hawaii is domestic shipping: no customs form is needed, and USPS and UPS both deliver to every island. Speed is what changed in 2026. Since October 1, 2026, USPS Priority Mail to Hawaii carries a 2 to 4-day service expectation, while USPS Ground Advantage moves mainly by surface (ocean) transport with an expectation of 10 days or more, regardless of weight.
That makes the choice simple: use Priority Mail, Priority Mail Express or a UPS air service for anything time-sensitive or perishable, and save Ground Advantage or UPS Ground for heavy, non-urgent boxes that contain no hazardous materials. This guide covers each option, the ground-service limits, agricultural inspection, and how to keep the cost down. To price your package, compare live USPS and UPS rates to Hawaii in the ParcelPath rate calculator.
What are the USPS and UPS options for shipping to Hawaii?
USPS treats Hawaii like any other US state for service selection, and its Flat Rate boxes ship to Hawaii at the same flat price as anywhere in the country. UPS serves Hawaii with its Next Day Air, 2nd Day Air and Ground services, but UPS 3 Day Select is offered only within the 48 contiguous states.
| Service | How it travels | Service expectation | Best for |
|---|---|---|---|
| USPS Priority Mail Express | Air | Fastest USPS option; unchanged by the October 2026 adjustment | Urgent documents and gifts |
| USPS Priority Mail | Air | 2 to 4 days (from October 1, 2026) | Most packages, perishables in insulated boxes |
| USPS Ground Advantage | Mainly surface | 10 days or more | Heavy, non-urgent boxes with no hazmat |
| UPS Next Day Air / Next Day Air Saver | Air | One business day; some locations need extra time | Time-critical business shipments |
| UPS 2nd Day Air / 2nd Day Air A.M. | Air | Two business days | Heavier parcels that need speed |
| UPS Ground | Surface | Day-definite; check UPS time in transit | Heavy boxes up to 150 lb, no hazmat |
USPS domestic packages can weigh up to 70 pounds, with a size limit of 108 inches in combined length and girth for Priority Mail and 130 inches for Ground Advantage. UPS accepts packages up to 150 pounds, which is the main reason to choose UPS for very heavy boxes. Our guide to how to ship a package covers measuring, packing and labeling a box.
How long does shipping to Hawaii take in 2026?
According to the USPS industry notice dated September 25, 2026, Priority Mail packages to or from Hawaii now receive a 2 to 4-day service expectation, up from a previous cap of 3 days, to account for travel time and time zones. Priority Mail Express is not affected. The same notice moves Ground Advantage packages between the contiguous US and Hawaii to a 10-day-or-more expectation, and USPS warns some will take significantly longer.
The bigger change is how Ground Advantage travels. Packages under one pound used to move by a mix of air and surface; now all noncontiguous Ground Advantage volume primarily uses surface transportation, so a light Ground Advantage parcel no longer reaches Hawaii faster than a heavy one. USPS says the change reduces the risk of hazardous materials entering air transport.
UPS Ground runs from the mainland to Hawaii with zone-based, day-definite delivery, and UPS lists metro Hawaii and remote Hawaii as separate zones. Delivery to Oahu is generally faster than to neighbor islands such as Molokai, Lanai or rural Big Island ZIP codes, so check the UPS time-in-transit tool or the USPS service commitments lookup for your exact origin and destination ZIP codes.
What are the ground-service limits for Hawaii?
Ground services to Hawaii come with restrictions that don’t apply on the mainland:
- UPS Ground and hazardous materials: UPS does not accept hazardous materials, including limited quantities and combustibles, in UPS Ground services to or from Hawaii. Aerosols, perfume, nail polish, paint and many cleaning products fall into these categories.
- No UPS 3 Day Select: the service isn’t offered to Hawaii, so the choice is UPS Ground or a UPS air service.
- Interisland moves: UPS runs a separate UPS Ground service within Oahu; shipments between islands use UPS’s Hawaii zone chart.
- USPS hazmat: items such as lithium batteries, aerosols and flammable liquids follow USPS Publication 52, and mailability can differ by mail class and transport mode, so check it before you pack.
For food, the 10-day Ground Advantage expectation is the deciding factor. Cookies, coffee and shelf-stable snacks can ride ground, but anything that spoils needs Priority Mail Express, Priority Mail or UPS air with proper insulation. Our guide to shipping perishables and food explains packaging, and our guide to how to ship frozen food covers dry ice and gel packs for longer transits.
What can’t you ship to Hawaii?
Hawaii protects its agriculture and native ecosystems with inspection rules that cover parcels as well as luggage. The Hawai’i Department of Agriculture and Biosecurity says all agricultural items entering the state, including plants, plant parts and soil, require inspection on arrival, and transportation companies must hold items, including mail, until inspection is complete. Certain plants and microorganisms need a permit before import.
- Plants, cuttings, seeds and soil: declare them and expect inspection; some need a permit.
- Animals: live animals and many non-domestic species are tightly controlled, and some, such as snakes, are prohibited.
- Hazardous materials: restricted by carrier rules, and barred from UPS Ground to Hawaii.
Check with the Department’s Plant Quarantine Branch before mailing anything living or agricultural, because an uninspected plant can be held, treated or destroyed.
How can you save on shipping to Hawaii?
USPS Flat Rate is often the best deal for heavy, compact items because the price doesn’t change with distance, and the trip to Hawaii is about as far as domestic shipping goes. For light or bulky items, compare Priority Mail by weight against UPS, since dimensional weight can tip the result either way.
- Right-size the box. A smaller box lowers dimensional weight on Priority Mail and every UPS service.
- Use Ground only when time doesn’t matter. With a 10-day-plus expectation, Ground Advantage suits books, clothes and household goods, not gifts with a date.
- Combine items. One larger parcel usually costs less than several small ones to the islands.
Through ParcelPath, you can buy USPS labels at up to 89% off and UPS labels at up to 85% off, with no subscription, per-label fee, minimum or contract. ParcelPath issues USPS and UPS labels only, schedules free USPS pickups, and supports printer-free labels through USPS Label Broker at the Post Office and UPS Mobile Barcode at The UPS Store. If you’re also weighing FedEx, our FedEx shipping calculator guide explains how its quotes work, and our roundup of the best shipping services and solutions compares carriers more broadly. For other states, see the state-by-state guide to shipping in the USA.
Frequently Asked Questions
What is the fastest affordable way of shipping to Hawaii?
For most packages, USPS Priority Mail is the best balance of speed and cost for shipping to Hawaii: it has a 2 to 4-day service expectation since October 1, 2026, and Flat Rate boxes cost the same as anywhere in the US. Priority Mail Express and UPS Next Day Air are faster. Ground Advantage now takes 10 days or more.
How long does USPS Ground Advantage take to Hawaii?
USPS Ground Advantage packages between the contiguous US and Hawaii have a service expectation of 10 days or more as of October 1, 2026, and USPS says some can take significantly longer. Ground Advantage to Hawaii now travels primarily by surface transportation regardless of weight, so even sub-pound parcels no longer ride by air.
Does UPS Ground ship to Hawaii?
Yes. UPS Ground runs from the 48 contiguous states to Hawaii, with separate zones for metro and remote Hawaii, and packages can weigh up to 150 pounds. UPS does not accept hazardous materials, including limited quantities and combustibles, in Ground service to or from Hawaii, and UPS 3 Day Select isn’t available to Hawaii, so use a UPS air service for those items.
Do you need a customs form to ship to Hawaii?
No. Hawaii is a US state, so packages from the mainland are domestic shipments with no customs declaration, duty or tax. Agricultural items are the exception to the hands-off treatment: the Hawai’i Department of Agriculture and Biosecurity requires inspection of plants, plant parts and soil on arrival, and some plants need a permit before they’re shipped.
Sources
- USPS PostalPro: Adjustments to Priority Mail and USPS Ground Advantage Service Expectations for Noncontiguous States and Territories (September 25, 2026)
- USPS: Service Commitments lookup
- USPS Publication 52: Hazardous, Restricted and Perishable Mail
- UPS Rate and Service Guide: U.S. 48, Alaska and Hawaii
- UPS: Calculate Time and Cost
- Hawai’i Department of Agriculture and Biosecurity, Plant Quarantine Branch: Import Program (dab.hawaii.gov)
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Part of our USA guide. Related: all U.S. state guides.
