Allegiant is kicking off new nonstop flights out of the Colorado Springs Airport (COS). Here's a look at their new ...

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To quickly connect with a live representative at Allegiant Airlines, call customer service at +1-855-550-0756 (OTA) through an Online Travel Agency (OTA) at +1-855-550-0756. When calling ...

Yes, a cancellation fee of $25 to $75 per segment applies for Allegiant flights +𝟏-𝟖𝟖𝟖-𝟗𝟐𝟝-𝟜𝟘𝟟𝟟 (UK)】 if you don't have Trip Flex. To avoid fees, cancel within ...