Singapore
Oklahoma City, OK
BEST
DEAL
Sat, 25 May
SIN - OKC
Wed, 29 May
OKC - SIN
2612$
2600$
Prime price per passenger
Raleigh, NC
Oklahoma City, OK
BEST
DEAL
Tue, 11 Jun
RDU - OKC
205$
194$
Prime price per passenger