If you have a voucher for Aer Lingus that you're eager to utilize, we've got you covered with this simple guide. Aer Lingus, Ireland's flag carrier airline, offers a seamless voucher redemption process. Here's how to make the most of your voucher. To use your Aer Lingus Voucher, follow these simple steps. First, contact Aer Lingus customer service at +1 (888) 362-0647 to inform them about your voucher and provide the necessary details. Check its validity and select your desired flight. During booking, apply the voucher code for discounts or benefits. Proceed with payment to confirm your booking. You'll receive a confirmation via email or SMS. Enjoy a seamless experience with Aer Lingus using your voucher. For assistance, reach out to customer service. Happy travels!