Which suppliers provide guaranteed 1–2 day shipping options

Which suppliers provide guaranteed 1–2 day shipping options

Suppliers and carriers providing guaranteed or reliable 1-2 day shipping options primarily include:

- UPS 2nd Day Air (including Air A.M. option): Delivers by end of 2nd business day, with a money-back guarantee if late. Covers metropolitan areas of the contiguous US, Puerto Rico, and Canada. Offers $100 insurance and free tracking with options for returns and pickups [1].

- FedEx 2Day, 2Day A.M., and Ground for nearby zones: Offers delivery by the second business day with free tracking and insurance. 2Day A.M. delivers by 10:30 a.m. or noon depending on business vs residential address [1][4].

- USPS Priority Mail: Affordable 2-day shipping option widely used for domestic packages across the US, without guaranteed delivery but very reliable historically [5].

- FedEx One Rate flat-rate shipping: Offers guaranteed 1–3 day flat-rate shipping with a fixed price, suitable for predictable shipping costs [3].

- Specialized fulfillment providers with fast US shipping and guarantees include:

  - ShipBob: 40 warehouses in the US, 99.96% on-time shipping records with 1-2 day options in major metro areas [7].

  - Deliverr: Large network promising 2-day coverage to 95% of US buyers with transparent pricing and guaranteed delivery windows [7].

  - Zendrop: Uses US/EU suppliers with 2-5 day delivery; some plans may include money-back guarantees on late shipments [8].

  

In summary, the most widely available guaranteed 1-2 day shipping services are UPS 2nd Day Air, FedEx 2Day variants, and USPS Priority Mail (though less formally guaranteed). For dropshipping or fulfillment providers, ShipBob and Deliverr are among leaders in guaranteed fast domestic delivery within two days for US customers. FedEx One Rate adds a flat-rate option to manage shipping costs predictably across these rapid services [1][3][7][8][4][5].

This covers general shipping courier services and specialized fulfillment suppliers offering guaranteed or highly reliable 1-2 day shipping in the US.

Citations:

[1] Two-day Shipping Options Guide: UPS, USPS, FedEx https://www.pitneybowes.com/us/blog/2-day-shipping.html

[2] Top 10 Fastest Courier Delivery Services in India in 2025 https://blog.shipway.com/fastest-courier-delivery-services-in-india/

[3] Easy 1-, 2-, 3-Day Flat-Rate Shipping | FedEx One Rate https://www.fedex.com/en-us/shipping/one-rate.html

[4] Shipping Services https://www.fedex.com/en-us/shipping/services.html

[5] What are the Cheapest 2-Day Shipping Options? https://www.easyship.com/blog/cheapest-2-day-shipping-options

[6] Rush For Same Day/Next Day Delivery Services https://fulfillment.shiprocket.in/rush/

[7] Order Fulfillment USA: 21 Best Fulfillment Companies For ... https://www.efulfillmentservice.com/2023/02/order-fulfillment-usa-21-best-fulfillment-companies-for-online-sellers/

[8] The 11 Best Dropshipping Sites and How To Get Started in ... https://www.shopify.com/in/blog/dropshipping-websites