Customer Service

Air Partnerships

Frontier Express

Frontier Express flights are operated by our regional partners Chautauqua Airlines and Republic Airlines on Embraer 145 and Bombardier Q400 aircraft. Because the Inflight amenities on these aircraft differ from those available on Frontier's larger aircraft, we operate them under the Frontier Express brand to manage your expectations. For details on Frontier Express flights, please visit our Frontier Express FAQ page.

Great Lakes Airlines Codeshare

Frontier codeshares with Great Lakes Airlines to extend our reach to smaller communities around the western United States. A codeshare is an agreement made between Frontier Airlines and another air carrier whereby Frontier may market and sell tickets for flights on the other carrier that are identified by Frontier's "F9" designator code (e.g. F9 Flight 123). Through this codeshare, Frontier serves over 35 additional destinations with convenient connections to Frontier and Frontier Express flights in Albuquerque, Denver, Las Vegas, Los Angeles, and Phoenix. The codeshare is only in effect if the Great Lakes flight is booked in conjunction with a connecting Frontier or Frontier Express flight. Make your reservations for Great Lakes codeshare flights on FrontierAirlines.com. For flights exclusively on Great Lakes, bookings should be made directly with Great Lakes at www.flygreatlakes.com. When traveling on Great Lakes flights ticketed as a Frontier codeshare, EarlyReturns^® members will earn valuable miles just like on any other Frontier flight.  For details on Great Lakes codeshare flights and information on how the codeshare works with our Fare Options, please visit our Air Partnerships FAQ page.

Interline Ticketing Agreements

Frontier maintains interline ticketing agreements with other airlines, allowing you to book convenient connecting itineraries to more destinations around the world. Frontier has interline electronic ticketing arrangements with each of its interline partners, allowing you to travel on both airlines with one electronic ticket. When you connect between Frontier and any interline partner, your baggage will be checked through to your final destination provided you have one ticket for travel on Frontier or Frontier Express and your connecting flight on the other airline. Frontier may also use its interline partners for reprotection in the unlikely event of a Frontier flight irregularity as explained in our Customer Commitment.

Frontier currently has interline airline ticketing agreements with:

As an additional benefit for customers connecting from Frontier and Frontier Express to American Airlines, Icelandair, or Korean Airlines, you can receive your boarding passes through to your final destination when you check in at a Frontier ticket counter. American Airlines, Icelandair, and Korean Airlines will also be able to issue a boarding pass for your connecting Frontier and Frontier Express flights if you are starting travel with them.