18 airports, 2 territories

Canada

YUL

Montreal

YYZ

Toronto Pearson

ORD

Chicago O'Hare

BKL

Cleveland Burke Lakefront

DFW

Dallas

YIP

Detroit Willow Run

GRR

Grand Rapids

BIV

Holland

IND

Indianapolis

MRK

Marco Island

MIA

Miami

ORL

Orlando

SOP

Pinehurst

PWM

Portland, ME

SFO

San Francisco

SNA

Santa Ana

SRQ

Sarasota

IAD

Washington Dulles