Home > Ecommerce Shipping > Stamps.com Launches International Large Envelope/Flat Service

Stamps.com Launches International Large Envelope/Flat Service

May 8th, 2023

Ship Merchandise with International Flats

Now the Most Affordable Way to Send Small/Flat Merchandise Internationally.  
Stamps.com has created an affordable replacement for the discontinued USPS First Class International Flat Service for Merchandise. If you haven’t heard,  starting January 21st, online retailers will NO LONGER be allowed to ship merchandise using First Class Mail International Large Envelopes/Flats – the USPS will ONLY ALLOW VALUELESS DOCUMENTS due to international Customs changes. Luckily, Stamps.com has the answer.

Starting, January 21st, Stamps.com will offer a new International Flat service for retailers.  This new service allows you to continue to ship merchandise in a Large Envelope/Flat to an International destination at a significant cost savings compared to First Class Package International Service. Best of all, this service continues to utilize the powerful USPS delivery network.

3 Great Reasons to Choose Stamps.com’s International Flat Service 

#1 Incredible cost savings – save up to 65% compared to First Class Package International Service

#2 Customs Forms will be sent electronically – no more forms to print

#3 Get better visibility with more tracking events

How Does It Work?
Stamps.com customers can immediately use the new service by simply selecting “First-Class Mail International Large Envelope/Flats” as the mail service inside the platform. The shipping label for this new service will differ from other international labels in two ways:

  1. The shipping label includes both the recipient’s international address as well as the domestic address of the Postal Processing Facility.
  2. The shipping label does not include any customs information – Customs Forms will be sent electronically.


Save Up to 65% Compared to First Class Package International Service
This new International Large Envelope/Flat service can provide huge cost savings compared to First Class Package International Service.  Savings can be over $15.00 per Large Envelope/Flat, depending on weight and country destination!

NOT A STAMPS.COM CUSTOMER? – SIGN UP TODAY TO TAKE ADVANTAGE OF THIS NEW, MONEY-SAVING SERVICE!  (Note: After sign-up, you must call into Stamps.com Customer Support (1-888-434-0055 to get your International Flats activated on your account.)

 Check out these unbeatable rates!

First Class Package
International Service
Stamps.com International Flats
Weight Zone 1
Canada
Zone 1
Canada
Savings with Stamps.com International Flats
1 $9.50 $4.79 $4.71
2 $9.50 $5.00 $4.50
3 $9.50 $5.21 $4.29
4 $9.50 $5.41 $4.09
5 $9.50 $5.62 $3.88
6 $9.50 $5.83 $3.67
7 $9.50 $6.04 $3.46
8 $9.50 $6.25 $3.25
12 $15.20 $7.29 $7.91
16 – 1 lb. $15.20 $8.33 $6.87
20 $15.20 $9.37 $5.83
24 $15.20 $10.41 $4.79
28 $15.20 $11.45 $3.75
32 – 2 lb. $15.20 $12.49 $2.71
36 $23.99 $13.53 $10.46
40 $23.99 $14.58 $9.41
44 $23.99 $15.62 $8.37
48 – 3 lb. $23.99 $16.66 $7.33
52 $35.39 $17.70 $17.69
56 $35.39 $18.74 $16.65
60 $35.39 $19.78 $15.61
64 – 4 lb. $35.39 $20.82 $14.57
Rates as of January 21, 2018
First Class Package
International Service
Stamps.com International Flats
Weight (oz) Zone 2
Mexico
Zone 2
Mexico
Savings with Stamps.com International Flats
1 $11.64 $4.79 $6.85
2 $11.64 $5.47 $6.17
3 $11.64 $6.14 $5.50
4 $11.64 $6.82 $4.82
5 $11.64 $7.50 $4.14
6 $11.64 $8.17 $3.47
7 $11.64 $8.85 $2.79
8 $11.64 $9.53 $2.11
12 $20.43 $10.98 $9.45
16 – 1 lb. $20.43 $12.44 $7.99
20 $20.43 $13.90 $6.53
24 $20.43 $15.36 $5.07
28 $20.43 $16.81 $3.62
32 – 2 lb. $20.43 $18.27 $2.16
36 $31.35 $19.73 $11.62
40 $31.35 $21.19 $10.16
44 $31.35 $22.64 $8.71
48 – 3 lb. $31.35 $24.10 $7.25
52 $45.13 $25.56 $19.57
56 $45.13 $27.02 $18.11
60 $45.13 $28.47 $16.66
64 – 4 lb. $45.13 $29.93 $15.20
Rates as of January 21, 2018
First Class Package
International Service
Stamps.com International Flats
Weight (oz) Zone 3
Australia/Asia
Zone 3
Australia/Asia
Savings with Stamps.com International Flats
1 $13.54 $4.79 $8.75
2 $13.54 $5.73 $7.81
3 $13.54 $6.66 $6.88
4 $13.54 $7.60 $5.94
5 $13.54 $8.54 $5.00
6 $13.54 $9.47 $4.07
7 $13.54 $10.41 $3.13
8 $13.54 $11.35 $2.19
12 $22.33 $13.22 $9.11
16 – 1 lb. $22.33 $15.10 $7.23
20 $22.33 $16.97 $5.36
24 $22.33 $18.84 $3.49
28 $22.33 $20.72 $1.61
32 – 2 lb. $22.33 $22.59 -$0.26
36 $33.25 $24.47 $8.78
40 $33.25 $26.34 $6.91
44 $33.25 $28.21 $5.04
48 – 3 lb. $33.25 $30.09 $3.16
52 $50.11 $31.96 $18.15
56 $50.11 $33.83 $16.28
60 $50.11 $35.71 $14.40
64 – 4 lb. $50.11 $37.58 $12.53
Rates as of January 21, 2018
First Class Package
International Service
Stamps.com International Flats
Weight (oz) Zone 4
Russia/Eastern Europe
Zone 4
Russia/Eastern Europe
Savings with Stamps.com International Flats
1 $13.06 $4.79 $8.27
2 $13.06 $5.73 $7.33
3 $13.06 $6.66 $6.40
4 $13.06 $7.60 $5.46
5 $13.06 $8.54 $4.52
6 $13.06 $9.47 $3.59
7 $13.06 $10.41 $2.65
8 $13.06 $11.35 $1.71
12 $21.85 $13.22 $8.63
16 – 1 lb. $21.85 $15.10 $6.75
20 $21.85 $16.97 $4.88
24 $21.85 $18.84 $3.01
28 $21.85 $20.72 $1.13
32 – 2 lb. $21.85 $22.59 -$0.74
36 $34.91 $24.47 $10.44
40 $34.91 $26.34 $8.57
44 $34.91 $28.21 $6.70
48 – 3 lb. $34.91 $30.09 $4.82
52 $56.53 $31.96 $24.57
56 $56.53 $33.83 $22.70
60 $56.53 $35.71 $20.82
64 – 4 lb. $56.53 $37.58 $18.95
Rates as of January 21, 2018
First Class Package
International Service
Stamps.com International Flats
Weight (oz) Zone 5 – UK/Western Europe Zone 5 – UK/Western Europe Savings with Stamps.com International Flats
1 $13.30 $4.79 $8.51
2 $13.30 $5.73 $7.57
3 $13.30 $6.66 $6.64
4 $13.30 $7.60 $5.70
5 $13.30 $8.54 $4.76
6 $13.30 $9.47 $3.83
7 $13.30 $10.41 $2.89
8 $13.30 $11.35 $1.95
12 $22.33 $13.22 $9.11
16 – 1 lb. $22.33 $15.10 $7.23
20 $22.33 $16.97 $5.36
24 $22.33 $18.84 $3.49
28 $22.33 $20.72 $1.61
32 – 2 lb. $22.33 $22.59 -$0.26
36 $33.96 $24.47 $9.49
40 $33.96 $26.34 $7.62
44 $33.96 $28.21 $5.75
48 – 3 lb. $33.96 $30.09 $3.87
52 $48.93 $31.96 $16.97
56 $48.93 $33.83 $15.10
60 $48.93 $35.71 $13.22
64 – 4 lb. $48.93 $37.58 $11.35
Rates as of January 21, 2018
First Class Package
International Service
Stamps.com International Flats
Weight (oz) Zone 6
Southeast Asia/India
Zone 6
Southeast Asia/India
Savings with Stamps.com International Flats
1 $13.06 $4.79 $8.27
2 $13.06 $5.68 $7.38
3 $13.06 $6.56 $6.50
4 $13.06 $7.44 $5.62
5 $13.06 $8.33 $4.73
6 $13.06 $9.21 $3.85
7 $13.06 $10.10 $2.96
8 $13.06 $10.98 $2.08
12 $22.09 $12.81 $9.28
16 – 1 lb. $22.09 $14.63 $7.46
20 $22.09 $16.45 $5.64
24 $22.09 $18.27 $3.82
28 $22.09 $20.09 $2.00
32 – 2 lb. $22.09 $21.91 $0.18
36 $32.78 $23.74 $9.04
40 $32.78 $25.56 $7.22
44 $32.78 $27.38 $5.40
48 – 3 lb. $32.78 $29.20 $3.58
52 $52.73 $31.02 $21.71
56 $52.73 $32.85 $19.88
60 $52.73 $34.67 $18.06
64 – 4 lb. $52.73 $36.49 $16.24
Rates as of January 21, 2018
First Class Package
International Service
Stamps.com International Flats
Weight (oz) Zone 7
Africa
Zone 7
Africa
Savings with Stamps.com International Flats
1 $13.06 $4.79 $8.27
2 $13.06 $5.68 $7.38
3 $13.06 $6.56 $6.50
4 $13.06 $7.44 $5.62
5 $13.06 $8.33 $4.73
6 $13.06 $9.21 $3.85
7 $13.06 $10.10 $2.96
8 $13.06 $10.98 $2.08
12 $22.09 $12.81 $9.28
16 – 1 lb. $22.09 $14.63 $7.46
20 $22.09 $16.45 $5.64
24 $22.09 $18.27 $3.82
28 $22.09 $20.09 $2.00
32 – 2 lb. $22.09 $21.91 $0.18
36 $33.01 $23.74 $9.27
40 $33.01 $25.56 $7.45
44 $33.01 $27.38 $5.63
48 – 3 lb. $33.01 $29.20 $3.81
52 $56.53 $31.02 $25.51
56 $56.53 $32.85 $23.68
60 $56.53 $34.67 $21.86
64 – 4 lb. $56.53 $36.49 $20.04
Rates as of January 21, 2018
First Class Package
International Service
Stamps.com International Flats
Weight (oz) Zone 8
Middle East
Zone 8
Middle East
Savings with Stamps.com International Flats
1 $12.83 $4.79 $8.04
2 $12.83 $5.68 $7.15
3 $12.83 $6.56 $6.27
4 $12.83 $7.44 $5.39
5 $12.83 $8.33 $4.50
6 $12.83 $9.21 $3.62
7 $12.83 $10.10 $2.73
8 $12.83 $10.98 $1.85
12 $21.61 $12.81 $8.80
16 – 1 lb. $21.61 $14.63 $6.98
20 $21.61 $16.45 $5.16
24 $21.61 $18.27 $3.34
28 $21.61 $20.09 $1.52
32 – 2 lb. $21.61 $21.91 -$0.30
36 $30.64 $23.74 $6.90
40 $30.64 $25.56 $5.08
44 $30.64 $27.38 $3.26
48 – 3 lb. $30.64 $29.20 $1.44
52 $50.35 $31.02 $19.33
56 $50.35 $32.85 $17.50
60 $50.35 $34.67 $15.68
64 – 4 lb. $50.35 $36.49 $13.86
Rates as of January 21, 2018
First Class Package
International Service
Stamps.com International Flats
Weight (oz) Zone 9
South America/ Caribbean
Zone 9
South America/ Caribbean
Savings with Stamps.com International Flats
1 $13.30 $4.79 $8.51
2 $13.30 $5.68 $7.62
3 $13.30 $6.56 $6.74
4 $13.30 $7.44 $5.86
5 $13.30 $8.33 $4.97
6 $13.30 $9.21 $4.09
7 $13.30 $10.10 $3.20
8 $13.30 $10.98 $2.32
12 $22.33 $12.81 $9.52
16 – 1 lb. $22.33 $14.63 $7.70
20 $22.33 $16.45 $5.88
24 $22.33 $18.27 $4.06
28 $22.33 $20.09 $2.24
32 – 2 lb. $22.33 $21.91 $0.42
36 $33.01 $23.74 $9.27
40 $33.01 $25.56 $7.45
44 $33.01 $27.38 $5.63
48 – 3 lb. $33.01 $29.20 $3.81
52 $48.93 $31.02 $17.91
56 $48.93 $32.85 $16.08
60 $48.93 $34.67 $14.26
64 – 4 lb. $48.93 $36.49 $12.44
Rates as of January 21, 2018
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