FedEx One Rate: Complete Guide (2026)

FedEx One Rate is a flat-rate shipping program that lets you pay a single price for eligible FedEx Express shipments regardless of weight — as long as the package fits in approved FedEx packaging and stays under 50 lb. It competes directly with USPS Priority Mail Flat Rate and is a strong option for dense, heavy items shipping short to medium distances.

Unlike USPS Flat Rate, FedEx One Rate prices vary by service level, package size, and — for the overnight and 2Day A.M. services — how far the package travels (FedEx groups distances into Local, Regional, and National pricing zones). Weight is removed as a variable up to 50 lb. Notably, FedEx Express Saver and FedEx 2Day One Rate prices are the same nationwide, so those two services behave like a true flat rate regardless of distance.

Eligible FedEx One Rate Packaging

FedEx One Rate only works with official FedEx packaging — you cannot use your own boxes. FedEx provides these boxes at no charge at their retail locations or you can order them online through your FedEx account. The available sizes range from small envelopes to large boxes, covering most small-to-medium ecommerce parcels.

The packaging must not be altered, reinforced, or modified. If a box is overpacked to the point it bulges or is taped in ways that change its dimensions, FedEx may reclassify the shipment and bill the difference.

FedEx Envelope: 9.5" x 12.5" (reusable: 9.5" x 15.5"; padded: 9.75" x 11.5") — under 10 lb
FedEx Extra Small Box: 7.25" x 2.5" x 4.69"
FedEx Pak (flexible envelope): 10.25" x 12.75" or 12" x 15.5" (padded: 11.75" x 14.75") — under 50 lb
FedEx Small Box: 10.875" x 1.5" x 12.375" or 8.75" x 2.625" x 11.25"
FedEx Medium Box: 11.5" x 2.375" x 13.25" or 8.75" x 4.375" x 11.25"
FedEx Large Box: 12.375" x 3" x 17.5" or 8.75" x 7.75" x 11.25"
FedEx Extra Large Box: 11.875" x 10.75" x 11" or 15.75" x 14.125" x 6"
FedEx Tube: 6" x 6" x 38" — for posters, blueprints, and rolled items

⚠️ An envelope thicker than 3 inches on its shortest side, or a Pak thicker than 5 inches, gets re-rated by FedEx as a One Rate box based on its cubic volume — overstuffing an envelope does not lock in the envelope price.

FedEx One Rate Prices: 2Day and Express Saver (2026)

These are FedEx's published One Rate list prices effective February 2, 2026. FedEx Express Saver (3rd business day by 5 PM) and FedEx 2Day (2nd business day by 5 PM) cost exactly the same as each other — and the price does not change with distance. Shipping a medium box across town or coast-to-coast is the same number:

FedEx Envelope: $12.75
FedEx Extra Small Box: $13.40
FedEx Pak: $16.30
FedEx Small Box: $19.55
FedEx Medium Box: $24.35
FedEx Large Box: $32.05
FedEx Extra Large Box: $42.75
FedEx Tube: $42.75

💡 For letters and documents, the $12.75 One Rate envelope on FedEx 2Day is the cheapest FedEx flat-rate option — and since 2Day costs the same as the slower Express Saver, there is no reason to pick Express Saver for an envelope.

Overnight One Rate Prices Vary by Distance Zone

For FedEx 2Day A.M., Standard Overnight, Priority Overnight, and First Overnight, One Rate prices depend on which of three distance bands the shipment falls into: Local (0–150 miles), Regional (151–600 miles), or National (601+ miles, which also covers Alaska and Hawaii shipments). Published 2026 list prices for the most common packaging:

Envelope, Standard Overnight (next day by 5 PM): $31.20 Local / $37.90 Regional and National
Envelope, Priority Overnight (next day by 10:30 AM): $49.50 Local / $66.05 Regional / $81.95 National
Small Box, Standard Overnight: $39.10 Local / $53.45 Regional and National
Small Box, Priority Overnight: $61.45 Local / $107.85 Regional / $148.20 National
Medium Box, Standard Overnight: $41.90 Local / $65.70 Regional and National
Medium Box, Priority Overnight: $70.95 Local / $122.90 Regional / $167.65 National
Large Box, Standard Overnight: $56.40 Local / $87.95 Regional and National
Large Box, Priority Overnight: $79.00 Local / $139.55 Regional / $193.05 National
Extra Large Box or Tube, Priority Overnight: $93.95 Local / $182.60 Regional / $268.05 National
First Overnight (next day by 8–8:30 AM) runs $103.50 (Local envelope) up to $322.05 (National extra large box)

ℹ️ Overnight rates jump sharply with distance — a Priority Overnight small box is $61.45 locally but $148.20 cross-country. If next-morning delivery isn't essential, Standard Overnight is consistently the cheaper overnight tier, and 2Day cuts the cost by half or more.

Service Levels and Pricing

FedEx One Rate is available across six expedited services: FedEx Express Saver (3rd day by 5 PM), FedEx 2Day (2nd day by 5 PM), FedEx 2Day A.M. (2nd day by 10:30 AM), FedEx Standard Overnight (next day by 5 PM), FedEx Priority Overnight (next day by 10:30 AM), and FedEx First Overnight (next day by 8 or 8:30 AM).

The flat price is set per package size per service level. One important catch FedEx confirms in its own One Rate FAQ: negotiated account discounts do NOT apply to One Rate pricing — everyone pays the published flat rate. Add-ons like Saturday Delivery and signature options cost extra, and an on-call pickup runs $4 unless you already have a regularly scheduled FedEx Express pickup.

ℹ️ Fuel surcharges are applied on top of One Rate prices and fluctuate weekly. Always check the FedEx rate tools with your account number to get the true all-in cost before comparing to alternatives.

When FedEx One Rate Saves You Money

One Rate is most advantageous when you're shipping dense, heavy items that fit in a small or medium box. If a product weighs 12 lb but fits in a Medium One Rate Box, you pay the flat price instead of a weight-based rate that climbs with every pound. The break-even weight — where One Rate beats zone-based FedEx Express — varies by zone, but is often around 4–7 lb for medium boxes.

One Rate is typically not the best choice for very light items (under 2 lb) because standard FedEx Express pricing for lightweight packages can be competitive, and for packages going only 1–2 zones because the rate advantage shrinks when the base zone rate is already low.

Weigh a representative sample of the items you ship most frequently
Check what zone(s) most of your shipments go to (your FedEx invoice shows zone distribution)
Get quotes for both FedEx One Rate and standard FedEx Express at those weights and zones
Account for dimensional weight — if your box is mostly air, standard rates may already be low
Run the comparison for each service level (Overnight, 2Day, Saver) separately

Restrictions and What One Rate Does Not Cover

FedEx One Rate is for domestic US shipments only — international shipments, even to Canada or Mexico, do not qualify. Alaska and Hawaii ARE covered: shipments between the contiguous US and Alaska or Hawaii price at the National zone rate, and intra-Alaska One Rate shipping is available too. The one exception is intra-Hawaii shipments, where One Rate pricing is not offered.

Hazardous materials, alcohol, and items requiring special handling are excluded from One Rate, even if they would otherwise fit in the approved packaging. Up to $100 of declared value is included at no extra cost; declaring a higher value costs extra, so high-value items should carry insurance beyond the One Rate program.

⚠️ One Rate packages that exceed 50 lb will be re-rated at standard FedEx Express rates for the actual weight, which can be significantly higher than what you budgeted. Always verify weight before sealing the box.

FedEx One Rate: Complete Guide