Sometimes it’s cheaper to fly into Cancun than Cozumel. There is an air shuttle service that flies
directly into Cozumel International Airport in 25 minutes from Cancun. It costs about $70.00 per person. https://www.mayair.com.mx/

Here is other information on Cancun Airport transportation: www.cancun-airport.com/transportation.htm

http://www.travelnotes.cc/cozumel/links/arrive.php

The following airlines fly into Cozumel International Airport or Cancun. We try to keep this list accurate, but it may change before we can update it:

American Airlines http://www.americanairlines.com/
Continental Airlines http://www.continental.com/
Delta Airlines http://www.delta.com
Northwest Airlines (connects to Continental in Houston) http://www.nwa.com/
United Airlines http://www.united.com
US Airways http://www.usairways.com/
Mexicana Airlines http://www.mexicana.com/
AeroCaribe/AeroCozumel (operated by Mexicana Airlines)
USA3000 announced recently that they will start a new Detroit-Cozumel route in
December 2008. See www.usa3000.com


Charters:
Champion Air http://www.championair.com
FunJet http://www.funjet.com/plan/index.htm
Apple Vacations http://www.applevacations.com
MLT Vacations http://www.worryfreevacations.com
Adventure Tours http://www.atusa.com/
Trans Global Vacations http://www.tgvacations.com/
Sky Service http://www.skyserviceairlines.com
Sun Holidays (from Canada) http://www.sunholidays.ca/

Ask the charter companies for airfare-only tickets. If this is not available, compare the rates between regularly scheduled commercial airlines and the charter rate -- it may be cheaper even with the package they offer.

Internet Discounters:
Orbitz http://www.orbitz.com/
Expedia http://www.expedia.com
Hotwire http://www.hotwire.com
PriceLine http://www.priceline.com/
Travelocity http://www.travelocity.com

From the website of the U.S. State Department: http://travel.state.gov/travel/cbpmc/cbpmc_2223.html

Every member of your party will need a passport. Airlines do not permit passengers to board flights to Mexico without showing a valid passport. Driver's permits, voter registration cards, affidavits and similar documents are not sufficient.