Orbitz:

Save 5% on hotel stays
Promo code: TRAVEL5
Minimum stay: none
Book by March 31, 2015, travel by June 30, 2015

Save 10% on hotel stays
Promo code: HOTEL10
Minimum stay: none
Book by March 31 2015, travel by June 30, 2015

Save 15% on hotel stays
Promo code: 48HRSALE
Minimum stay: none
Book by January 7, 2015 12 p.m. CST, travel by June 30, 2015