View the list of Sample Business Letters Promotional Letter, Air Freight Disclaimer: Be aware that some of these sample letters have legal, financial, or other implications. If you are not sure about the use of any letter, consult with an appropriate professional first. Promotional Letter, Air Freight Dear Thank you for choosing (name of firm) to deliver your air freight to (location) We thought you might be interested in knowing that we can make deliveries anywhere in the world and most of our overseas deliveries can be made overnight, directly to the address of the recipient. While the cost for this service will vary depending on the ultimate destination of your package, our prices are highly competitive. You may be surprised to find out just how economical this service can be. Again, we thank you for being able to provide our service to you, and will be looking forward to serving you in the near future.