I need a list of travel agents in the state of California specializing
in selling of international airline ticket. Their email addresses and
other contact details are essential to my need. I want the list to be
very comprehensive.

Hi! Thanks for the question.

Our first link gives you a comprehensive listing of the type of travel
agencies you require. It consists of more than 1300 travel agencies.

Superpages: California (1300+ companies)
http://yp111.superpages.com/listings.phtml?CID=&C=Airline+Tickets&PG=L&STYPE=S&R=N&S=CA&PP=L&local=on

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The next links meanwhile are additional airline travel agencies in
selected California cities. The list adds up to about 360+ companies.

Anaheim (4 companies)
http://www3.yellowpagesinc.com/results.asp?R=&srchtyperslt=S&WS=P2&category=7&note=&SIC=472901&City16=anaheim&St=CA&S=FE&DESC=AIRLINE+TICKET+AGENCIES&Zip=&Phone=&SearchType=S&radius=&Co=100

Beverly Hills (5 companies)
http://www3.yellowpagesinc.com/results.asp?R=&srchtyperslt=S&WS=P2&category=7&note=&SIC=472901&City16=beverly+hills&St=CA&S=FE&DESC=AIRLINE+TICKET+AGENCIES&Zip=&Phone=&SearchType=S&radius=&Co=100

Fresno (15 companies)
http://www3.yellowpagesinc.com/results.asp?R=&srchtyperslt=S&WS=P2&category=7&note=&SIC=472901&City16=fresno&St=CA&S=FE&DESC=AIRLINE+TICKET+AGENCIES&Zip=&Phone=&SearchType=S&radius=&Co=100

Glendale (4 companies)
http://www3.yellowpagesinc.com/results.asp?R=&srchtyperslt=S&WS=P2&category=7&note=&SIC=472901&City16=glendale&St=CA&S=FE&DESC=AIRLINE+TICKET+AGENCIES&Zip=&Phone=&SearchType=S&radius=&Co=100

Irvine (5 companies)
http://www3.yellowpagesinc.com/results.asp?R=&srchtyperslt=S&WS=P2&category=7&note=&SIC=472901&City16=irvine&St=CA&S=FE&DESC=AIRLINE+TICKET+AGENCIES&Zip=&Phone=&SearchType=S&radius=&Co=100

Los Angeles (81 companies)
http://www3.yellowpagesinc.com/results.asp?R=&srchtyperslt=S&WS=&category=7&note=divided&SIC=472901&City16=LOS+ANGELES&St=CA&S=FE&DESC=AIRLINE+TICKET+AGENCIES&Zip=&Phone=&SearchType=S&radius=&Co=100

Menlo Park (4 companies)
http://www3.yellowpagesinc.com/results.asp?R=&srchtyperslt=S&WS=P2&category=7&note=&SIC=472901&City16=menlo+park&St=CA&S=FE&DESC=AIRLINE+TICKET+AGENCIES&Zip=&Phone=&SearchType=S&radius=&Co=100

Monterey (4 companies)
http://www3.yellowpagesinc.com/results.asp?R=&srchtyperslt=S&WS=P2&category=7&note=&SIC=472901&City16=monterey&St=CA&S=FE&DESC=AIRLINE+TICKET+AGENCIES&Zip=&Phone=&SearchType=S&radius=&Co=100

San Francisco (62 companies)
http://www3.yellowpagesinc.com/results.asp?R=&srchtyperslt=S&WS=&category=7&note=divided&SIC=472901&City16=SAN+FRANCISCO&St=CA&S=FE&DESC=AIRLINE+TICKET+AGENCIES&Zip=&Phone=&SearchType=S&radius=&Co=100

Oakland (8 companies)
http://www3.yellowpagesinc.com/results.asp?R=&srchtyperslt=S&WS=P2&category=7&note=&SIC=472901&City16=oakland&St=CA&S=FE&DESC=AIRLINE+TICKET+AGENCIES&Zip=&Phone=&SearchType=S&radius=&Co=100

Palm Springs (4 companies)
http://www3.yellowpagesinc.com/results.asp?R=&srchtyperslt=S&WS=P2&category=7&note=&SIC=472901&City16=palm+springs&St=CA&S=FE&DESC=AIRLINE+TICKET+AGENCIES&Zip=&Phone=&SearchType=S&radius=&Co=100

Palo Alto (7 companies)
http://www3.yellowpagesinc.com/results.asp?R=&srchtyperslt=S&WS=P2&category=7&note=&SIC=472901&City16=palo+alto&St=CA&S=FE&DESC=AIRLINE+TICKET+AGENCIES&Zip=&Phone=&SearchType=S&radius=&Co=100

Sacramento (23 companies)
http://www3.yellowpagesinc.com/results.asp?R=&srchtyperslt=S&WS=P2&category=7&note=&SIC=472901&City16=sacramento&St=CA&S=FE&DESC=AIRLINE+TICKET+AGENCIES&Zip=&Phone=&SearchType=S&radius=&Co=100

San Diego (87 companies)
http://www3.yellowpagesinc.com/results.asp?R=&srchtyperslt=S&WS=P2&category=7&note=&SIC=472901&City16=san+diego&St=CA&S=FE&DESC=AIRLINE+TICKET+AGENCIES&Zip=&Phone=&SearchType=S&radius=&Co=100

San Jose (22 companies)
http://www3.yellowpagesinc.com/results.asp?R=&srchtyperslt=S&WS=P2&category=7&note=&SIC=472901&City16=san+jose&St=CA&S=FE&DESC=AIRLINE+TICKET+AGENCIES&Zip=&Phone=&SearchType=S&radius=&Co=100

Santa Barbara (13 companies)
http://www3.yellowpagesinc.com/results.asp?R=&srchtyperslt=S&WS=P2&category=7&note=&SIC=472901&City16=santa+barbara&St=CA&S=FE&DESC=AIRLINE+TICKET+AGENCIES&Zip=&Phone=&SearchType=S&radius=&Co=100

Stockton (11 companies)
http://www3.yellowpagesinc.com/results.asp?R=&srchtyperslt=S&WS=P2&category=7&note=&SIC=472901&City16=stockton&St=CA&S=FE&DESC=AIRLINE+TICKET+AGENCIES&Zip=&Phone=&SearchType=S&radius=&Co=100

Sunnyvale (8 companies)
http://www3.yellowpagesinc.com/results.asp?R=&srchtyperslt=S&WS=P2&category=7&note=&SIC=472901&City16=sunnyvale&St=CA&S=FE&DESC=AIRLINE+TICKET+AGENCIES&Zip=&Phone=&SearchType=S&radius=&Co=100

Search terms used:           
California airline "travel agents" list
Yellow pages
               
I hope these links would help you in your research. Before rating this
answer, please ask for a clarification if you have a question or if
you would need further information.
               
Thanks for visiting us.                
               
Regards,                
Easterangel-ga                
Google Answers Researcher