The Load Balancer products are in the AmazonEC2 service code.
From the command line you can use something similar to this to get the results for a specific region:
{
"PriceList": [
"{\"product\":{\"productFamily\":\"Load Balancer\",\"attributes\":{\"servicecode\":\"AmazonEC2\",\"groupDescription\":\"Data processed by Elastic Load Balancer\",\"usagetype\":\"DataProcessing-Bytes\",\"locationType\":\"AWS Region\",\"location\":\"US East (N. Virginia)\",\"servicename\":\"Amazon Elastic Compute Cloud\",\"operation\":\"LoadBalancing\",\"group\":\"ELB:Balancing\"},\"sku\":\"4YYNPC2WZJJXCMPG\"},\"serviceCode\":\"AmazonEC2\",\"terms\":{\"OnDemand\":{\"4YYNPC2WZJJXCMPG.JRTCKXETXF\":{\"priceDimensions\":{\"4YYNPC2WZJJXCMPG.JRTCKXETXF.6YS6EN2CT7\":{\"unit\":\"GB\",\"endRange\":\"Inf\",\"description\":\"$0.008 per GB Data Processed by the LoadBalancer\",\"appliesTo\":[],\"rateCode\":\"4YYNPC2WZJJXCMPG.JRTCKXETXF.6YS6EN2CT7\",\"beginRange\":\"0\",\"pricePerUnit\":{\"USD\":\"0.0080000000\"}}},\"sku\":\"4YYNPC2WZJJXCMPG\",\"effectiveDate\":\"2019-10-01T00:00:00Z\",\"offerTermCode\":\"JRTCKXETXF\",\"termAttributes\":{}}}},\"version\":\"20191017052535\",\"publicationDate\":\"2019-10-17T05:25:35Z\"}",
"{\"product\":{\"productFamily\":\"Load Balancer\",\"attributes\":{\"servicecode\":\"AmazonEC2\",\"groupDescription\":\"Standard Elastic Load Balancer\",\"usagetype\":\"LoadBalancerUsage\",\"locationType\":\"AWS Region\",\"location\":\"US East (N. Virginia)\",\"servicename\":\"Amazon Elastic Compute Cloud\",\"operation\":\"LoadBalancing\",\"group\":\"ELB:Balancer\"},\"sku\":\"T3YPSF6NJ69JWWNM\"},\"serviceCode\":\"AmazonEC2\",\"terms\":{\"OnDemand\":{\"T3YPSF6NJ69JWWNM.JRTCKXETXF\":{\"priceDimensions\":{\"T3YPSF6NJ69JWWNM.JRTCKXETXF.6YS6EN2CT7\":{\"unit\":\"Hrs\",\"endRange\":\"Inf\",\"description\":\"$0.025 per LoadBalancer-hour (or partial hour)\",\"appliesTo\":[],\"rateCode\":\"T3YPSF6NJ69JWWNM.JRTCKXETXF.6YS6EN2CT7\",\"beginRange\":\"0\",\"pricePerUnit\":{\"USD\":\"0.0250000000\"}}},\"sku\":\"T3YPSF6NJ69JWWNM\",\"effectiveDate\":\"2019-10-01T00:00:00Z\",\"offerTermCode\":\"JRTCKXETXF\",\"termAttributes\":{}}}},\"version\":\"20191017052535\",\"publicationDate\":\"2019-10-17T05:25:35Z\"}"
],
"FormatVersion": "aws_v1"
}