APO FPO DPO shipping is priced as domestic mail. You pay domestic USPS postage to send a package to a service member overseas. Most parcels also need a customs form, and some items are restricted by destination.
USPS sells an APO/FPO/DPO Large Flat Rate Box at $32.55. The regular Large Flat Rate Box is $34.00, so the military box saves $1.45. The rules below come from the USPS Domestic Mail Manual section on military mail and the July 12, 2026 price list.
Holiday prices through January 17, 2027: USPS added a temporary price increase from October 4, 2026 to January 17, 2027 for Priority Mail Express, Priority Mail, USPS Ground Advantage and Parcel Select. During that window, retail Ground Advantage starts at $8.40, Priority Mail at $11.50 and Priority Mail Express at $37.05.
Priority Mail Flat Rate costs $13.90 for the envelope, $14.25 legal, $15.00 padded, $14.65 for the small box, $25.80 medium and $36.10 large ($34.65 APO/FPO/DPO). Priority Mail Express flat rate envelopes are $38.25, $38.55 legal and $39.25 padded. Prices in the rest of this article are the regular July 12, 2026 prices, which return January 18, 2027, and stamps, letters and Media Mail are not affected.
What APO, FPO and DPO mean
APO stands for Army or Air Force Post Office. FPO stands for Fleet Post Office and serves the Navy and Marine Corps. DPO stands for Diplomatic Post Office and serves State Department posts.
From the sender’s side, all three work like a domestic address, so you never write a foreign city, country or postal code. The military moves the package once it leaves the USPS network.
How to address an APO, FPO or DPO package
Military addresses must follow the domestic address format. The bottom line uses APO, FPO or DPO in place of the city. Then comes a two letter state code and a ZIP Code.
| Line | What goes there | Example |
|---|---|---|
| 1 | Recipient name or title | PFC JANE DOE |
| 2 | Unit or box line (CMR, PSC, UNIT, OPC or UPR plus a number) | UNIT 1234 BOX 56 |
| 3 | APO, FPO or DPO, state code, ZIP Code | APO AE 09012 |
The example is for illustration only. Ask the service member for the exact lines. Unit and box numbers change when a unit moves, and one wrong digit can send the package to the wrong post office.
The state code shows the region. AA means Armed Forces Americas, AE means Armed Forces Europe, and AP means Armed Forces Pacific.
| State code | Region | ZIP Code prefix |
|---|---|---|
| AA | Armed Forces Americas | 340 |
| AE | Armed Forces Europe | 090 through 098 |
| AP | Armed Forces Pacific | 962 through 966 |
Which USPS services work for military mail
You pay the same postage as for any U.S. address, so pick the service by weight, speed and budget. The Mail Class Selector compares options for your parcel.
| Service | What the USPS manual says |
|---|---|
| Priority Mail Express Military Service | 3 to 5 business day delivery; needs PS Form 2976-B at any weight |
| Priority Mail | Domestic price; flat rate boxes and envelopes are available |
| USPS Ground Advantage | Domestic price; retail limit of 130 inches combined length and girth |
| Parcel Airlift (PAL) | Air transport on a space available basis for an extra fee per piece; up to 30 pounds and 60 inches |
| First-Class Mail letters | Airlift between military destinations on a space available basis |
Delivery takes longer than most domestic mail. The package leaves the country by air or sea. Only Priority Mail Express Military Service carries a stated range of 3 to 5 business days.
USPS does not publish one fixed transit time for other parcels. It depends on the destination, the season and the military route. Plan on more than the usual Priority Mail delivery window, and mail early before holidays.
Parcel Airlift and extra services
Parcel Airlift moves a parcel by air when space allows. It applies to USPS Ground Advantage, Package Services or Parcel Select pieces up to 30 pounds and 60 inches in length and girth combined. An extra fee applies to each piece beyond regular postage.
With Parcel Airlift, the manual lists certificate of mailing, insured mail and return receipt. It also lists insurance restricted delivery when the item is insured for more than $500. Check the options at the counter, since they can change by service.
The APO/FPO/DPO flat rate box discount
The military Large Flat Rate Box is marked “Americasupportsyou.mil”. It costs $32.55 under the July 12, 2026 price list. The regular Large Flat Rate Box is $34.00.
| Priority Mail retail option | Price |
|---|---|
| Flat Rate Envelope | $12.90 |
| Legal Flat Rate Envelope | $13.25 |
| Padded Flat Rate Envelope | $14.00 |
| Small Flat Rate Box | $13.65 |
| Medium Flat Rate Box | $24.80 |
| Large Flat Rate Box | $34.00 |
| APO/FPO/DPO Large Flat Rate Box | $32.55 |
The military box measures 12 by 11 3/4 by 5 1/2 inches inside, the same as the regular Large Flat Rate Box. The price stays the same however heavy the contents are, as long as the box closes. USPS says only USPS produced flat rate boxes qualify for flat rate prices, so a box from another store will not work.
When flat rate is the better deal
Flat rate suits heavy, dense items. Canned food, books and bottled drinks all fit that description. Boots and tools do too.
Light items are different. A box of clothing or snacks may cost less at a weight based Priority Mail price. Weigh the packed box first, then compare it with the price for your zone before you buy.
Customs forms for APO FPO DPO shipping
Most military parcels travel with a computer generated customs form, even though the rate is domestic. You can fill it out online and print it. The form you need depends on the service and the contents.
- Priority Mail Express needs a properly completed PS Form 2976-B at any weight.
- Other pieces that weigh 16 ounces or more, or that contain goods, need PS Form 2976 or PS Form 2976-A.
List each item and its value in plain words, such as “snacks” or “toiletries”. A vague word like “gifts” tells the inspector nothing. A form that is missing, unreadable or vague can hold the package up; our walkthrough on filling out a USPS customs form covers each field.
Duty does not apply the way it does for foreign addresses, because the address is treated as domestic. If you also send parcels to civilians abroad, the International Duty Estimator covers those costs. Keep the two kinds of shipments separate.
What you cannot send to an APO, FPO or DPO address
The USPS ban on hazardous materials, restricted items and perishable matter applies. Publication 52 holds the detail. Aerosols, flammable liquids and fresh food are the usual problem items.
Local rules add to this list. USPS states that mail to military and diplomatic post offices overseas is subject to conditions on content, preparation and handling that depend on the destination.
Each ZIP Code carries letter codes in the Postal Bulletin, and the current APO/FPO/DPO restrictions list defines them. The ones that catch most senders are below.
| Code | What the Postal Bulletin prohibits |
|---|---|
| R | All alcoholic beverages, including those otherwise mailable under Publication 52 |
| H1 | Pork and pork products |
| E | Medicines, including over the counter drugs, vitamins and supplements, when mailed to individuals |
| C and C2 | Cigarettes, other tobacco products, vaping products and nicotine liquids |
| D | Coffee |
| F, F1, F3 | Firearms, weapons, replica weapons and weapons parts |
| I1 and I2 | Lithium cells and batteries, and liquids of any type |
| I3 | Pieces over 27 inches long or 14 inches wide or high (everything must fit in a mail sack) |
| V | Priority Mail Express Military Service not available |
Not every code applies to every ZIP Code. USPS runs an APO/FPO/DPO restrictions tool that checks a ZIP Code and a mailing date, so run it before you pack and ask the service member too, because a unit can have its own rules.
Priority Mail Express Military Service
Priority Mail Express Military Service is the fastest option for APO FPO DPO shipping. The manual states a delivery time of 3 to 5 business days. It always needs PS Form 2976-B, whatever the weight.
The flat rate envelopes make it easy to price. Retail prices on the July 12, 2026 list are below. Heavier parcels are priced by weight and zone, so check the price before you commit.
| Priority Mail Express retail envelope | Price |
|---|---|
| Flat Rate Envelope | $35.90 |
| Legal Flat Rate Envelope | $36.20 |
| Padded Flat Rate Envelope | $36.90 |
Express costs far more than a Priority Mail envelope at $12.90. Use it for documents, medication refills the unit allows, or anything with a deadline. For gifts and care packages, the slower services save real money.
Common mistakes that delay military mail
Most problems with APO FPO DPO shipping come from a handful of errors. Each one is easy to avoid with a few minutes of checking.
- Writing a foreign city or country on the label instead of APO, FPO or DPO.
- Using an old unit or box number after the service member moved.
- Skipping the customs form on a parcel of 16 ounces or more.
- Packing an item the destination bans, such as alcohol.
- Buying a flat rate box from a store instead of a USPS produced box.
Any one of these can delay or return a parcel, and so can a tracking gap that is really just the overseas leg; see USPS tracking not updating before you assume a loss. Fixing a mistake after mailing costs more time than checking before you seal the box. The restrictions tool and the customs form take only minutes.
Packing and labeling a military care package
Military parcels travel a long way and are handled many times. Pack as if the box will be dropped. Use a sturdy box, fill empty space with paper, and tape every seam.
Put the full delivery address on the top of the box. Put a second copy inside, in case the outer label tears. Add your return address to both so the package can come back to you if it cannot be delivered.
Wrap anything that can leak in a sealed bag and then in a second bag. Heat in transit can burst containers, and it can melt chocolate and candy. Choose items that hold up to a warm trip.
Step by step: sending your first military package
- Get the full address lines from the service member and copy them exactly.
- Check the USPS restrictions tool with the ZIP Code and your mailing date.
- Choose a service, and use the APO/FPO/DPO Large Flat Rate Box if the contents are heavy.
- Print the customs form online and list every item with its value.
- Pack tightly, seal the box, and put a return address on it.
- Keep the receipt and tracking number until the package arrives.
Compare the total at a few weights against our guide to USPS package shipping costs before you commit to a service. A small saving per box adds up when you send monthly care packages.
UPS and FedEx for military addresses
Only USPS hands mail to the military and diplomatic post offices, so a UPS or FedEx driver cannot deliver to an APO, FPO or DPO address. Both carriers reach them only through the services that end in the USPS network. UPS accepts APO, FPO and DPO ship to addresses for UPS Mail Innovations and UPS SurePost, with the city box showing APO, FPO or DPO and the state box AA, AE or AP.
FedEx Ground Economy, which FedEx describes as delivering packages to the USPS post office for final delivery, lists APO/FPO/DPO locations in its service documentation. Expect USPS transit times plus the carrier’s own leg, and the same customs form and restriction rules.
If a package is delayed, start with the post office where you mailed it. Keep your receipt and tracking number. Return receipt and insurance, where offered, give you a record if something goes wrong.
Bottom line
Treat a military address as domestic for price and as international for paperwork. Use the exact unit line, add the right customs form, and check destination restrictions before you buy supplies. For heavy care packages, the $32.55 military flat rate box is the cheapest listed option.
