Where do I find the cheapest flights from Florida to Guadalajara/Mex City

Where do I find the cheapest flights from Florida to Guadalajara/Mex City?
Whats the best airport in Florida to get the cheapest flight to Guadalajara? Or Mex City, but final desitination for me will be GUAD.... Does it matter when I fly, plan is August/september, but it can change.... Does any airline has specials or something....I remember I saw in March 299 flights miami - Mex city, but not anymore.... THANKS A LOT
Guadalajara - 2 Answers
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1 :
Jet Blue!!! They are the cheapest!
2 :
The only place in Mexico that Jet Blue flies to is Cancun. Your best bet is to use kayak. http://www.kayak.com/flights They search all the booking sites such as Orbitz, Expedia, and give you prices to compare. You may see a better price tomoroow or the good price you see today, may be gone. If I don't see a good price on the visit I keep looking for a few adays and when good price is available, with no more than one stop, I grab it.