Southwest has non-stop flights from Belize to Denver, Houston, and Fort Lauderdale on Saturday, January 21st. If the 2:10pm non-stop to Denver is canceled your best bet is the 5pm flight to Houston, then get the 1020pm flight from Houston to Denver. That's the second option listed when you search for a flight from Belize to Denver on southwest.com. I would put decent money on the flights operating as scheduled, the amount of snow predicted in Denver is not anything unusual and is well within normal operating levels. But, airlines do weird things. Good luck!
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