Cats, additional dogs and day care have their own lines, so check the sheet for your pet.
What 14 nights saves
A two-week stay in Business Class costs 14 x $59 = $826 at the regular rate and 14 x $53 = $742 at the long-term rate. The saving is $6 a night in Business Class and $7 a night in First Class.
Month-long stays
Stays longer than four weeks also need a card on file, which is charged every two weeks in advance. The billing question explains how that works.
Other discounts on the sheet
Active military families have a rate at the same prices, and each additional pet sharing a kennel is about 15% off. The sheet does not say whether two discounts combine, so ask when you book rather than assuming.
Planning a long stay
Long stays are common before a move, a deployment or a long trip abroad. Read what to expect from a month-long stay and the long-term boarding page. Use the stay cost estimator for a number.
What to compare
Add up your nights, then price them at the regular rate and the long-term rate. For 21 nights in Economy that is 21 x $52 against 21 x $47. Then add extras and baths on top.