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commercial aviation supplies & gifts

FREQUENTLY ASKED QUESTIONS can be reached by phone, fax or email:

Phone: (303) 780-5834

Fax: (303) 780-7500

Email: [email protected]

Normal Business Hours: Monday – Friday 9:00 a.m. to 5:00 p.m.

Please Note: Email is not a secure means of transmitting personal, private information. For your security, please do NOT include credit card account numbers in email correspondence.

Changes and cancellations may be made to orders that have been placed but have not yet been shipped. Please note changes or cancellations to orders that have been shipped cannot be made, and the Return Policy would apply.

Please contact us by email or phone to initiate the return process.

Email: [email protected]

Phone: 303-780-5834

Upon receipt of the merchandise, a refund will be issued for the returned merchandise

Shipping is non-refundable in most circumstances.

The customer is responsible for the return shipping.

In the event you are shipped the incorrect item or your order arrives damaged or broken, the Denver Mainliner will cover the return shipping as well as shipping to send out the replacement items

Yes, if you would like to exchange the item purchased for another size, color, style or different item, please follow the instructions listed above for returning merchandise.  We will happily exchange the item for you. 

If you are exchanging the item for different item, either a refund will be processed or you will be contacted for payment information if there is an amount due. 

The customer is responsible for the shipping to return the item, the Denver Mainliner will ship out the exchanged item at no cost to the customer.

Please note:  Prior authorization for returns is required

Denver Mainliner Store
Attn:  Returns Department
7401 E Martin Luther King Jr Blvd
Denver, CO  80207

No, each Mainliner Store is independently owned and operated.  Purchases made online at or in person at one of the Denver Mainliner Stores can only be returned to the Denver Mainliner Stores.

YES, the Denver Mainliner Stores offer a minimum 20% discount for items purchased for employee recognition purposes.  Please contact us at (303) 780-5834 to place your order.  You may either pay for your purchases directly or we will invoice you for the purchase.   

YES, We strive to provide United Airlines with the best possible pricing on logo and other items. Please contact the Denver Mainliner Stores manager at (303) 780-5834 for pricing and availability.

YES, the Denver Mainliner Stores offer a 20% discount on items purchased, if large quantities are needed, please contact the Denver Mainliner Stores manager at (303) 780-5834 for availability.

If you are purchasing for a 501(c)(3) please provide us with a copy of your tax exemption paperwork.

YES, please contact the Denver Mainliner Stores manager at (303) 780-5834 for resale pricing and availability.

Stapleton, Colorado Location

Denver Mainliner Store
Flight Training Center
7401 E Martin Luther King Jr Blvd
Denver, Colorado 80207

Phone: (303) 780-5835
Fax: (303) 780-5700
Normal Business Hours: Monday – Friday 9:00 a.m. to 5:00 p.m. MST

Denver International Airport Location

Denver Mainliner Store
Denver International Airport
United Airlines – B Concourse
Center Core, 4th Floor
Denver, Colorado 80249

Phone: 303-348-4090
Fax: 303-348-4093
Hours: Monday – Friday 8:00 a.m. to 5:00 p.m. MST