Book United Boston to Appleton flight deals from $278

Depart: 03/05/19
Return: 03/19/19

Depart: 03/12/19
Return: 03/26/19

Depart: 03/14/19
Return: 03/28/19

Depart: 03/16/19
Return: 03/30/19

Depart: 03/19/19
Return: 04/02/19

Depart: 03/20/19
Return: 04/03/19

Depart: 03/21/19
Return: 04/04/19

Depart: 03/23/19
Return: 04/06/19

Depart: 03/26/19
Return: 04/09/19

Depart: 03/28/19
Return: 04/11/19