Pricing varies for each airline. Below are links to the airlines serving LSE with the information you are looking for:
https://www.delta.com/content/www/en_US/traveling-with-us/baggage/before-your-trip/checked.html
https://www.aa.com/i18n/travel-info/baggage/checked-baggage-policy.jsp
KEYWORDS
price | amount | cost | dollars | luggage | bags | fee