Price note: USPS prices are retail prices as of October 2026 (USPS Notice 123, effective October 4, 2026, including temporary holiday-season increases through January 17, 2027). FedEx prices come from FedEx’s 2026 rate tables, effective January 5, 2026. FedEx has announced an average 5.9% list-rate increase for January 4, 2027. Always get a live quote before you ship.

FedEx vs UPS vs USPS: Complete Comparison for Every Use Case

No single carrier is cheapest for every package. In October 2026, USPS Ground Advantage was clearly the cheapest retail option for light packages. For mid-weight packages crossing the country, its retail prices were close to FedEx Ground’s in-store prices. UPS and FedEx accept heavier and larger packages than USPS (150 lb versus 70 lb). FedEx Home Delivery reaches most U.S. homes on weekends at no extra charge, and only USPS delivers to P.O. Boxes.

This guide compares the three carriers on prices, size limits, delivery days, surcharges, liability and claims, using each carrier’s own published terms.

Key Takeaways

Under 2 lb: USPS Ground Advantage is usually cheapest at retail. A 1 lb package cost $13.65 to the farthest USPS zone, compared with $16.59 for FedEx Ground at a FedEx retail counter.
5-20 lb: Retail prices were close. To the farthest zone, 5 lb cost $27.45 with USPS Ground Advantage and $27.51 with FedEx Ground. At 20 lb it was $72.15 versus $70.53.
Over 70 lb: Use UPS or FedEx. USPS doesn’t accept packages above 70 lb, while UPS and FedEx take packages up to 150 lb.
P.O. Boxes: USPS is the only one of the three that delivers to them. UPS ships only to street addresses, and FedEx says its standard and Home Delivery services can’t deliver to P.O. Boxes.
Surcharges decide the real price for UPS and FedEx account shipping. FedEx’s fuel surcharge was 28.75% on Ground and 32% on domestic express services for the week of October 19, 2026.

Side-by-Side Carrier Comparison

Feature	USPS	UPS	FedEx
Maximum weight	70 lb	150 lb	150 lb
Maximum size	108 in length + girth (130 in for Ground Advantage)	108 in length; 165 in length + girth	Ground: 108 in length, 165 in length + girth; Express: 119 in length, 165 in length + girth
Economy ground service	Ground Advantage, 2-5 days	UPS Ground, 1-5 business days	FedEx Ground / Home Delivery, 1-5 business days (3-7 to Alaska and Hawaii)
Weekend delivery	Saturday standard; Priority Mail Express 365 days a year	Varies by service and area	Home Delivery reaches over 98% of the U.S. population on Saturdays and nearly two-thirds on Sundays, no extra fee
Delivers to P.O. Boxes	Yes	No (UPS ships only to street addresses)	No
Included coverage	Up to $100 insurance (Ground Advantage, Priority Mail, Priority Mail Express)	Liability limited to $100 unless a higher value is declared	Liability limited to $100 unless a higher value is declared
Maximum extra coverage	Insurance up to $5,000	Declared value available for a fee	Declared value up to $50,000 per package for most services
Dimensional weight	Over 1 cubic foot, divisor 139 (since July 12, 2026)	Divisor 139	Divisor 139, all services
Claim deadline	Damage: within 60 days of mailing; loss: 15-60 days after mailing for Ground Advantage, Priority Mail and insured mail	Within 60 days of the scheduled delivery date	Claims page: damage within 60 calendar days of the ship date, loss within nine months. Its Service Guide says 90 days, so file within 60 days to be safe

Price Comparison: Retail Ground Shipping

These are walk-in prices for a person without a business account. USPS figures are Ground Advantage and Priority Mail retail prices as of October 2026. FedEx figures are FedEx Ground retail rates for 2026, which FedEx says already include residential delivery, standard delivery-area and fuel surcharges.

Farthest zone (USPS Zone 8 / FedEx Zone 8, roughly cross-country):

Weight	USPS Ground Advantage	USPS Priority Mail	FedEx Ground (retail)
1 lb	$13.65	$17.95	$16.59
5 lb	$27.45	$39.00	$27.51
10 lb	$40.85	$63.40	$39.10
20 lb	$72.15	$113.70	$70.53

Nearby (USPS Zone 2 / FedEx Zone 2):

Weight	USPS Ground Advantage	FedEx Ground (retail)
1 lb	$10.45	$13.85
5 lb	$14.35	$14.77
10 lb	$17.10	$17.23
20 lb	$24.20	$21.95

USPS’s prices above include its temporary peak-season increase, which ends January 17, 2027. FedEx’s 2026 retail table stays in effect until the January 4, 2027 increase. UPS publishes its own daily and retail rates in the UPS Rate and Service Guide on ups.com. Check them for your ZIP Codes, because UPS and FedEx zones are not the same as USPS zones.

Online and account prices are lower. USPS commercial prices for online labels were well below retail. Ground Advantage to Zone 8 cost $20.24 for 5 lb and $42.14 for 20 lb. FedEx Ground’s 2026 list rate for 5 lb to Zone 8 was $21.69, but for account shipments fuel, residential and other surcharges are added on top. UPS and FedEx shippers with volume often negotiate discounts, which can change the result. See our small business shipping guide for how to get those rates.

Surcharges That Change the Math

UPS and FedEx list rates are base prices. For a FedEx account shipment, the 2026 Service Guide and fee tables add:

Fuel surcharge: It changes weekly. For October 19-25, 2026 it was 28.75% for FedEx Ground and Home Delivery and 32.00% for domestic express package services.
Residential: $6.45 per FedEx Home Delivery package.
Delivery area surcharge: $6.60 per residential package in designated areas, more in extended and remote areas.
Additional Handling: from $29.50 per package in Zone 2 for packages over certain dimensions, and from $46 per package for weight.
Holiday demand surcharges: in effect through January 17, 2027. For example, $0.50 to $0.80 per residential Ground or Home Delivery package and $1.30 to $2.55 per overnight package, with extra weekly charges for the largest residential shippers.

UPS applies its own fuel, residential, delivery-area and additional-handling surcharges, listed in its rate guide. USPS doesn’t add fuel or residential surcharges, but it does charge nonstandard fees for long or bulky parcels. In 2026 it also added a time-limited 8% transportation-related increase that runs until January 17, 2027.

Best Carrier by Use Case

Small, light packages (under 1 lb)

Usually USPS Ground Advantage. Retail prices start at $8.40 for up to 8 oz to the nearest zone and reach $13.65 for 1 lb to Zone 8. FedEx Ground’s lowest retail price was $13.85 (1 lb, Zone 2). eBay and Etsy sellers buying discounted labels pay less still. See our eBay and Etsy seller shipping guide.

Medium packages (1-20 lb)

Compare every time. At retail, USPS Ground Advantage and FedEx Ground were within a few dollars of each other from 5 to 20 lb, and USPS Priority Mail was the most expensive by weight. For heavy, compact items going far, a USPS Priority Mail Flat Rate box can beat both. The Medium Flat Rate Box cost $25.80 at retail for anything that fits, up to 70 lb.

Heavy or large packages (over 70 lb)

UPS or FedEx. USPS caps packages at 70 lb. Both private carriers accept up to 150 lb, but expect additional-handling surcharges on very heavy or long packages. Beyond 150 lb you need a freight service.

Overnight and guaranteed delivery

Depends on the deadline and the budget. FedEx sells three next-business-day tiers:

First Overnight: by 8 to 9:30 a.m. in most areas
Priority Overnight: by 10:30 a.m. to most businesses, noon to most residences
Standard Overnight: by 5 p.m. to businesses, 8 p.m. to residences

UPS offers similar Next Day Air tiers. USPS Priority Mail Express is cheaper at the counter but promises 1-3 days by 6 p.m. with a money-back guarantee, rather than a guaranteed next-morning time. For a 1 lb package to the farthest zone, Priority Mail Express cost $65.15 at retail. FedEx Standard Overnight’s 2026 list rate was $99.65 before the fuel surcharge. See our overnight shipping comparison.

International

All three ship worldwide. USPS is often cheapest for small parcels, while UPS, FedEx and DHL Express are built for fast, tracked delivery with customs brokerage. Customs paperwork and duties apply whichever carrier you use. See International Shipping from the US: Complete Guide.

Rural addresses and P.O. Boxes

USPS. The Postal Service delivers to every U.S. address and to P.O. Boxes. UPS and FedEx deliver to rural street addresses but may add delivery-area surcharges there. FedEx’s 2026 residential delivery-area surcharge is $6.60, and it costs more in extended and remote areas.

Insurance, Liability and Claims

USPS: Ground Advantage, Priority Mail and Priority Mail Express include up to $100 of insurance when the label carries a tracking barcode. You can buy more coverage up to $5,000. Under Domestic Mail Manual 609, file damage claims no later than 60 days after mailing. File loss claims for insured mail and Priority Mail between 15 and 60 days after mailing, and for Priority Mail Express between 7 and 60 days. Claims are filed online at usps.com, and denials can be appealed within 30 days. See our guide on how to file a shipping claim.
UPS: Liability is $100 per package unless you declare a higher value and pay for it. UPS asks you to start a claim within 60 days of the scheduled delivery date. Keep the invoice, the box and the contents, and photograph any damage.
FedEx: Liability is $100 per package unless a higher value is declared. The maximum declared value is $50,000 per package for most U.S. services, and lower for some, such as FedEx Envelope and FedEx Pak. Declared value cost $4.95 for values from $100.01 to $300 in 2026, plus $1.65 per $100 above $300. FedEx’s claims page gives U.S. shippers 60 calendar days from the ship date for damage or missing contents, and nine months for lost packages. Its 2026 Service Guide terms say 90 days from delivery, or from tender if the package was never delivered. Filing within 60 days of shipping satisfies both.

Declared value is the carrier’s liability, not insurance. FedEx’s terms say so explicitly. For expensive items, compare carrier coverage with third-party shipping insurance before you buy.

What Changed in 2026, and What’s Next

USPS: Shipping prices rose January 18. A time-limited 8% increase was added April 26. On July 12 the Forever stamp went to 82 cents and the dimensional-weight divisor dropped to 139. A holiday surcharge started October 4. Both temporary increases end January 17, 2027.
FedEx: 2026 list rates took effect January 5, 2026. FedEx has announced an average 5.9% increase in standard list rates effective January 4, 2027, along with new surcharge amounts. For example, its residential delivery charge for U.S. package services rises from $6.95 to $7.35.
UPS: UPS announces its annual rate changes on ups.com. Check the current UPS Rate and Service Guide before comparing.

How to Compare for Your Own Package

Weigh and measure the packed box. All three carriers bill by dimensional weight when a large, light box exceeds its actual weight.
Get a USPS price at postcalc.usps.com and quotes from ups.com and fedex.com for the same ZIP Codes.
Add the surcharges that apply to you, such as residential delivery, delivery area and fuel.
Decide what’s worth paying for: speed, weekend delivery, a guarantee or higher coverage.
If you ship regularly, use discounted online labels. A free multi-carrier label service shows USPS and UPS prices side by side.

For a beginner walkthrough, see How to Ship a Package. For cutoff dates this season, see our holiday shipping deadlines.