As long as they have an interline agreement, which they do:
[KVS Availability Tool 7.0.2/Diamond - Reference: Interline Agreements [IET]: NH]
Code:
ELECTRONIC INTERLINE CARRIER AGREEMENTS-NH
INTERLINE CARRIER CODES
AA - AC - AF - AH - AI - AM - AP - AQ - AS - AT
AV - AY - AZ - A3 - BA - BD - BI - BR - BT - CA
CI - CM - CO - CX - CZ - DL - EK - ET - EY - FI
FJ - FM - GF - HA - HY - IB - JJ - JK - JL - JO
JP - KA - KC - KE - KF - KL - KM - KQ - LA - LG
LH - LO - LP - LR - LX - LY - MA - MD - MH - MI
MS - MU - MX - NX - NZ - OA - OK - OM - OS - OU
OZ - PG - PR - PZ - QF - QR - RA - SA - SC - SK
SN - SQ - SU - TA - TG - TK - TP - T0 - UA - UL
US - UX - VN - VS - WF - WP - XL - ZH - 4M - 9B
9W