You can send up to 4 lbs using Priority Mail International Flat Rate Envelopes and Small Flat Rate Boxes, and up to 20 lbs. using Medium and Large Flat Rate Boxes. ( See all Priority Mail International Flat Rate Products .)

You can check out the starting prices for many of our domestic and international mailing and shipping options below or visit the Postal Explorer ® website to review the full USPS® Price List. Not sure which mailing service you need? Compare Our Services.

60 Pack Airmail Paper and Envelopes Set - Blue Writing Paper for Invitations, Love Letters, Letters to Troops, Christmas Letter - 8.5 x 11 Inch

IMPORTANT: When you send using First-Class Mail International, you must write "AIRMAIL/PAR AVION" on the address side of your postcard, letter, or large envelope. When you're done addressing your envelope, put what you’re sending inside the envelope, then close and seal it.

Airmail envelopes are a popular choice for sending mail internationally due to their distinctive design and lightweight construction. This article will explore the history of airmail envelopes, their features, benefits, and real-world use cases.

Airmail envelopes are a specialty type of envelope designed for international mailings with red and blue stripes. This article will explore the history, design, purpose, and real world use cases of airmail envelopes.

Jan 6, 2019 · No. 10 Airmail Service Regular Envelopes w Red and Blue Border, 4-1/8" x 9-1/2", White Sulphite, "Par Avion" on Back and Front (SFI Certified) - Box of 500 Envelopes

Nov 3, 2014 · JAM Paper #10 Airmail Business Envelopes measure 4 1/8 x 9 1/2 inches in size and are made out of durable 20lb paper. These white straight flap envelopes feature a red and blue signed stripe border resembling vintage style stationary.

Air Mail Envelopes - distinctive red and blue border, air mail envelopes are preferential for international delivery. Manufactured with lightweight papers designed for postage savings. Inside tint ensures opacity.