Frontier Airlines Reservations
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The primary hub for the airline is the Denver International Airport. Domestically, Frontier flights operate to airports up and down the west coast of the country, including two destinations in Alaska, one city in Oregon, and numerous cities in California. To the east of the Rocky Mountains, the airline flies to a collection of the nation’s largest cities and smaller cities that otherwise would not have service to Denver or the west.
Frontier Airways also has a limited service that operates from the Trenton-Mercer Airport in Trenton, New Jersey. The airline offers reservations to Tampa, Orlando, Fort Myers, and Fort Lauderdale in Florida, with plans to add more flights through 2013. As a low-cost carrier, Frontier often releases deals on discount tickets to help travelers in the northeast escape the cooler weather for the sunny skies of Florida. Expedia is the best place to find these sales on flights.
Internationally, the airline offers flights to Liberia and San Jose in Costa Rica, Punta Cana in the Dominican Republic, and five destinations in Mexico. All of their international destinations are vacation getaways, allowing people to fly into warmth and sunshine.
When looking for specials on Frontier Airlines reservations, turn to Expedia for deals on tickets to any destination that the airline flies to.
Frontier Airlines US Domestic Routes
Frontier Airlines services the most popular domestic destinations and flight routes within the United States. With many flight options to both major cities and smaller destinations, you can travel anywhere in the US with ease and convenience. Use the following list to discover just some of the great routes available:
Seattle to Denver (SEA - DEN)
Denver to Atlanta (DEN - ATL)
Denver to San Francisco (DEN - SFO)
Denver to Dallas (DEN - DFW)
Denver to Detroit (DEN - DTW)
Denver to Minneapolis (DEN - MSP)
Denver to Salt Lake City (DEN - SLC)
Las Vegas to Denver (LAS - DEN)
Orlando to Denver (MCO - DEN)
Philadelphia to Denver (PHL - DEN)
Phoenix to Denver (PHX - DEN)
Tampa to Denver (TPA - DEN)
San Diego to Denver (SAN - DEN)
Portland to Denver (PDX - DEN)
New Orleans to Denver (MSY - DEN)
Kansas City to Denver (MCI - DEN)
Milwaukee to Denver (MKE - DEN)
San Antonio to Denver (SAT - DEN)
Denver to Seattle (DEN - SEA)
San Francisco to Denver (SFO - DEN)
Dallas to Denver (DFW - DEN)
Denver to Boston (DEN - BOS)
Minneapolis to Denver (MSP - DEN)
Salt Lake City to Denver (SLC - DEN)
Atlanta to Denver (ATL - DEN)
Denver to Las Vegas (DEN - LAS)
Denver to Orlando (DEN - MCO)
Denver to Philadelphia (DEN - PHL)
Denver to Phoenix (DEN - PHX)
Denver to Tampa (DEN - TPA)
Denver to San Diego (DEN - SAN)
Denver to Portland (DEN - PDX)
Denver to New Orleans (DEN - MSY)
Denver to Kansas City (DEN - MCI)
Denver to Milwaukee (DEN - MKE)
Denver to San Antonio (DEN - SAT)
Frontier Airlines US International Routes
Those looking to travel internationally can rely on Expedia to find the most popular Frontier Airlines routes to cities all over the world. Expedia truly makes the world your oyster by offering deals on thousands of international destinations. Globetrotting has never been easier with the most popular international routes just a click away! Find just some of the best routes below:
Frontier Airlines FLIGHT STATUS, ONLINE CHECK-IN AND BAGGAGE INFO
Airports serviced by Frontier Airlines
Frontier Airlines operates domestic and international flights from the following airports:


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