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3. Enter Mailing
 
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4. Select a Flat Rate Service -OR- Select a Shape
Select Flat Rate Service
Priority Mail Express International™ Flat Rate Boxes
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More Info about Priority Mail Express International™ Flat Rate Boxes
Priority Mail Express International™
Flat Rate Boxes 
13-5/8" x 11-7/8" x 3-3/8"
11" x 8-1/2" x 5-1/2"
Maximum weight 20 pounds.
Priority Mail Express International™ Flat Rate Envelope
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More Info about Priority Mail Express International™ Flat Rate Envelope
Priority Mail Express International™
Flat Rate Envelope 
12-1/2" x 9-1/2"
Maximum weight 4 pounds.
Priority Mail Express International™ Legal Flat Rate Envelope
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More Info about Priority Mail Express International™ Legal Flat Rate Envelope
Priority Mail Express International™
Legal Flat Rate Envelope 
15" x 9-1/2"
Maximum weight 4 pounds.
Priority Mail Express International™ Padded Flat Rate Envelope
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More Info about Priority Mail Express International™ Padded Flat Rate Envelope
Priority Mail Express International™
Padded Flat Rate Envelope 
12-1/2" x 9-1/2"
Maximum weight 4 pounds.
Priority Mail International® Large Flat Rate Box
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More Info about Priority Mail International® Large Flat Rate Box
Priority Mail International®
Large Flat Rate Box 
23-11/16" x 11-3/4" x 3"
12" x 12" x 5-1/2"
Maximum weight 20 pounds.
Priority Mail International® Medium Flat Rate Box
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More Info about Priority Mail International® Medium Flat Rate Box
Priority Mail International®
Medium Flat Rate Box 
13-5/8" x 11-7/8" x 3-3/8"
11" x 8-1/2" x 5-1/2"
Maximum weight 20 pounds.
Priority Mail International® Small Flat Rate Box
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More Info about Priority Mail International® Small Flat Rate Box
Priority Mail International®
Small Flat Rate Box 
8-5/8" x 5-3/8" x 1-5/8"
Maximum weight 4 pounds.
Priority Mail International® DVD Flat Rate priced box
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More Info about Priority Mail International® DVD Flat Rate priced box
Priority Mail International®

DVD Flat Rate priced box 
7-9/16" x 5-7/16" x 5/8"
Maximum weight 4 pounds.
Priority Mail International® Large Video Flat Rate priced box
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More Info about Priority Mail International® Large Video Flat Rate priced box
Priority Mail International®
Large Video Flat Rate priced box 
9-1/4" x 6-1/4" x 2"
Maximum weight 4 pounds.
Priority Mail International® Flat Rate Envelope
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More Info about Priority Mail International® Flat Rate Envelope
Priority Mail International®
Flat Rate Envelope 
12-1/2" x 9-1/2"
Maximum weight 4 pounds.
Priority Mail International® Legal Flat Rate Envelope
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More Info about Priority Mail International® Legal Flat Rate Envelope
Priority Mail International®
Legal Flat Rate Envelope 
15" x 9-1/2"
Maximum weight 4 pounds.
Priority Mail International® Padded Flat Rate Envelope
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More Info about Priority Mail International® Padded Flat Rate Envelope
Priority Mail International®
Padded Flat Rate Envelope 
12-1/2" x 9-1/2"
Maximum weight 4 pounds.
Priority Mail International® Gift Card Flat Rate Envelope
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More Info about Priority Mail International® Gift Card Flat Rate Envelope
Priority Mail International®
Gift Card Flat Rate Envelope 
10" x 7"
Maximum weight 4 pounds.
Priority Mail International® Small Flat Rate Envelope
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More Info about Priority Mail International® Small Flat Rate Envelope
Priority Mail International®
Small Flat Rate Envelope 
10" x 6"
Maximum weight 4 pounds.
Priority Mail International® Window Flat Rate Envelope
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More Info about Priority Mail International® Window Flat Rate Envelope
Priority Mail International®
Window Flat Rate Envelope 
10" x 5"
Maximum weight 4 pounds.
Dimensions shown for Flat Rate Boxes are inside dimensions
-OR- Select Shape
Postcard Letter Large Envelope Package Large Package
More Info about the postcard mail type More Info about the letter mail type More Info about the large envelope mail type More Info about the package mail type More Info about the large package mail type
Any dimension over
12 inches (30.48 cm)