Frontier updated the flight schedule

Frontier has announced changes to its route schedule.

The newly added low cost flights are:
Akron-Canton (CAK) - Milwaukee (MKE) [see flight details]
Akron-Canton (CAK) - Denver (DEN) [see flight details]
Albuquerque (ABQ) - Milwaukee (MKE) [see flight details]
Albuquerque (ABQ) - Denver (DEN) [see flight details]
Anchorage (ANC) - Milwaukee (MKE) [see flight details]
Anchorage (ANC) - Denver (DEN) [see flight details]
Appleton (ATW) - Milwaukee (MKE) [see flight details]
Appleton (ATW) - Denver (DEN) [see flight details]
Aspen (ASE) - Milwaukee (MKE) [see flight details]
Aspen (ASE) - Denver (DEN) [see flight details]
Austin (AUS) - Milwaukee (MKE) [see flight details]
Austin (AUS) - Denver (DEN) [see flight details]
Billings Logan (BIL) - Milwaukee (MKE) [see flight details]
Billings Logan (BIL) - Denver (DEN) [see flight details]
Detroit Flint (FNT) - Denver (DEN) [see flight details]
Detroit Flint (FNT) - Milwaukee (MKE) [see flight details]
Boise (BOI) - Milwaukee (MKE) [see flight details]
Boise (BOI) - Denver (DEN) [see flight details]
Boston (BOS) - Milwaukee (MKE) [see flight details]
Boston (BOS) - Denver (DEN) [see flight details]
Branson (BKG) - Milwaukee (MKE) [see flight details]
Branson (BKG) - Denver (DEN) [see flight details]
Cancún (CUN) - Milwaukee (MKE) [see flight details]
Cancún (CUN) - Denver (DEN) [see flight details]
Chicago Midway (MDW) - Milwaukee (MKE) [see flight details]
Chicago Midway (MDW) - Denver (DEN) [see flight details]
Cleveland (CLE) - Milwaukee (MKE) [see flight details]
Cleveland (CLE) - Denver (DEN) [see flight details]
Colorado Springs (COS) - Milwaukee (MKE) [see flight details]
Colorado Springs (COS) - Denver (DEN) [see flight details]
Columbus (CMH) - Milwaukee (MKE) [see flight details]
Columbus (CMH) - Denver (DEN) [see flight details]
Cozumel (CZM) - Milwaukee (MKE) [see flight details]
Cozumel (CZM) - Denver (DEN) [see flight details]
Dallas Fort Worth (DFW) - Milwaukee (MKE) [see flight details]
Dallas Fort Worth (DFW) - Denver (DEN) [see flight details]
Dane County (MSN) - Milwaukee (MKE) [see flight details]
Dane County (MSN) - Denver (DEN) [see flight details]
Denver (DEN) - Billings Logan (BIL) [see flight details]
Denver (DEN) - Branson (BKG) [see flight details]
Denver (DEN) - Cleveland (CLE) [see flight details]
Denver (DEN) - Dallas Fort Worth (DFW) [see flight details]
Denver (DEN) - Appleton (ATW) [see flight details]
Denver (DEN) - Milwaukee (MKE) [see flight details]
Denver (DEN) - Kansas City (MCI) [see flight details]
Denver (DEN) - San Francisco (SFO) [see flight details]
Denver (DEN) - Louisville (SDF) [see flight details]
Denver (DEN) - Spokane (GEG) [see flight details]
Denver (DEN) - Nashville (BNA) [see flight details]
Denver (DEN) - Tucson (TUS) [see flight details]
Denver (DEN) - Newport News/Williamsburg (PHF) [see flight details]
Denver (DEN) - Detroit Wayne (DTW) [see flight details]
Denver (DEN) - Orlando (MCO) [see flight details]
Denver (DEN) - Fort Lauderdale (FLL) [see flight details]
Denver (DEN) - Portland (PDX) [see flight details]
Denver (DEN) - Hartford (BDL) [see flight details]
Denver (DEN) - Sacramento (SMF) [see flight details]
Denver (DEN) - Bozeman (BZN) [see flight details]
Denver (DEN) - Chicago Midway (MDW) [see flight details]
Denver (DEN) - Cozumel (CZM) [see flight details]
Denver (DEN) - Anchorage (ANC) [see flight details]
Denver (DEN) - Austin (AUS) [see flight details]
Denver (DEN) - Jackson (JAC) [see flight details]
Denver (DEN) - San Diego (SAN) [see flight details]
Denver (DEN) - Los Angeles (LAX) [see flight details]
Denver (DEN) - Seattle (SEA) [see flight details]
Denver (DEN) - Minneapolis (MSP) [see flight details]
Denver (DEN) - St. Petersburg (TPA) [see flight details]
Denver (DEN) - New York Newark Liberty (EWR) [see flight details]
Denver (DEN) - Des Moines (DSM) [see flight details]
Denver (DEN) - Santa Ana (SNA) [see flight details]
Denver (DEN) - Detroit Flint (FNT) [see flight details]
Denver (DEN) - Pittsburgh (PIT) [see flight details]
Denver (DEN) - Green Bay (GRB) [see flight details]
Denver (DEN) - Rapid City (RAP) [see flight details]
Denver (DEN) - Boston (BOS) [see flight details]
Denver (DEN) - Cancún (CUN) [see flight details]
Denver (DEN) - Columbus (CMH) [see flight details]
Denver (DEN) - Albuquerque (ABQ) [see flight details]
Denver (DEN) - Hartsfield-Jackson Atlanta (ATL) [see flight details]
Denver (DEN) - San Antonio (SAT) [see flight details]
Denver (DEN) - Long Beach (LGB) [see flight details]
Denver (DEN) - Santa Barbara (SBA) [see flight details]
Denver (DEN) - Mazatlán (MZT) [see flight details]
Denver (DEN) - Yampa Valley (HDN) [see flight details]
Denver (DEN) - New York LaGuardia (LGA) [see flight details]
Denver (DEN) - Wichita (ICT) [see flight details]
Denver (DEN) - Omaha (OMA) [see flight details]
Denver (DEN) - Fairbanks (FAI) [see flight details]
Denver (DEN) - Phoenix (PHX) [see flight details]
Denver (DEN) - Gerald R. Ford (GRR) [see flight details]
Denver (DEN) - Raleigh (RDU) [see flight details]
Denver (DEN) - Indianapolis (IND) [see flight details]
Denver (DEN) - Boise (BOI) [see flight details]
Denver (DEN) - San José del Cabo (SJD) [see flight details]
Denver (DEN) - Colorado Springs (COS) [see flight details]
Denver (DEN) - Dayton (DAY) [see flight details]
Denver (DEN) - Akron-Canton (CAK) [see flight details]
Denver (DEN) - Aspen (ASE) [see flight details]
Denver (DEN) - Salt Lake City (SLC) [see flight details]
Denver (DEN) - Las Vegas (LAS) [see flight details]
Denver (DEN) - San José (SJO) [see flight details]
Denver (DEN) - Dane County (MSN) [see flight details]
Denver (DEN) - Saint Louis (STL) [see flight details]
Denver (DEN) - New Orleans (MSY) [see flight details]
Denver (DEN) - Ronald Reagan Washington (DCA) [see flight details]
Denver (DEN) - Oklahoma City (OKC) [see flight details]
Denver (DEN) - Durango (DRO) [see flight details]
Denver (DEN) - Philadelphia (PHL) [see flight details]
Denver (DEN) - Fort Myers Southwest Florida (RSW) [see flight details]
Denver (DEN) - Puerto Vallarta (PVR) [see flight details]
Denver (DEN) - Houston George Bush (IAH) [see flight details]
Des Moines (DSM) - Denver (DEN) [see flight details]
Des Moines (DSM) - Milwaukee (MKE) [see flight details]
Detroit Wayne (DTW) - Milwaukee (MKE) [see flight details]
Detroit Wayne (DTW) - Denver (DEN) [see flight details]
Durango (DRO) - Milwaukee (MKE) [see flight details]
Durango (DRO) - Denver (DEN) [see flight details]
Fairbanks (FAI) - Milwaukee (MKE) [see flight details]
Fairbanks (FAI) - Denver (DEN) [see flight details]
Fort Lauderdale (FLL) - Milwaukee (MKE) [see flight details]
Fort Lauderdale (FLL) - Denver (DEN) [see flight details]
Bozeman (BZN) - Milwaukee (MKE) [see flight details]
Bozeman (BZN) - Denver (DEN) [see flight details]
Milwaukee (MKE) - Sacramento (SMF) [see flight details]
Milwaukee (MKE) - Kansas City (MCI) [see flight details]
Milwaukee (MKE) - San Francisco (SFO) [see flight details]
Milwaukee (MKE) - Louisville (SDF) [see flight details]
Milwaukee (MKE) - Spokane (GEG) [see flight details]
Milwaukee (MKE) - Nashville (BNA) [see flight details]
Milwaukee (MKE) - Tucson (TUS) [see flight details]
Milwaukee (MKE) - Newport News/Williamsburg (PHF) [see flight details]
Milwaukee (MKE) - Detroit Wayne (DTW) [see flight details]
Milwaukee (MKE) - Orlando (MCO) [see flight details]
Milwaukee (MKE) - Fort Lauderdale (FLL) [see flight details]
Milwaukee (MKE) - Portland (PDX) [see flight details]
Milwaukee (MKE) - Hartford (BDL) [see flight details]
Milwaukee (MKE) - Austin (AUS) [see flight details]
Milwaukee (MKE) - Bozeman (BZN) [see flight details]
Milwaukee (MKE) - Chicago Midway (MDW) [see flight details]
Milwaukee (MKE) - Cozumel (CZM) [see flight details]
Milwaukee (MKE) - Anchorage (ANC) [see flight details]
Milwaukee (MKE) - Jackson (JAC) [see flight details]
Milwaukee (MKE) - San Diego (SAN) [see flight details]
Milwaukee (MKE) - Los Angeles (LAX) [see flight details]
Milwaukee (MKE) - Seattle (SEA) [see flight details]
Milwaukee (MKE) - Minneapolis (MSP) [see flight details]
Milwaukee (MKE) - St. Petersburg (TPA) [see flight details]
Milwaukee (MKE) - New York Newark Liberty (EWR) [see flight details]
Milwaukee (MKE) - Des Moines (DSM) [see flight details]
Milwaukee (MKE) - Santa Ana (SNA) [see flight details]
Milwaukee (MKE) - Detroit Flint (FNT) [see flight details]
Milwaukee (MKE) - Pittsburgh (PIT) [see flight details]
Milwaukee (MKE) - Green Bay (GRB) [see flight details]
Milwaukee (MKE) - Rapid City (RAP) [see flight details]
Milwaukee (MKE) - Boston (BOS) [see flight details]
Milwaukee (MKE) - Cancún (CUN) [see flight details]
Milwaukee (MKE) - Columbus (CMH) [see flight details]
Milwaukee (MKE) - Albuquerque (ABQ) [see flight details]
Milwaukee (MKE) - Hartsfield-Jackson Atlanta (ATL) [see flight details]
Milwaukee (MKE) - Indianapolis (IND) [see flight details]
Milwaukee (MKE) - San Antonio (SAT) [see flight details]
Milwaukee (MKE) - Long Beach (LGB) [see flight details]
Milwaukee (MKE) - Santa Barbara (SBA) [see flight details]
Milwaukee (MKE) - Mazatlán (MZT) [see flight details]
Milwaukee (MKE) - Yampa Valley (HDN) [see flight details]
Milwaukee (MKE) - New York LaGuardia (LGA) [see flight details]
Milwaukee (MKE) - Wichita (ICT) [see flight details]
Milwaukee (MKE) - Denver (DEN) [see flight details]
Milwaukee (MKE) - Omaha (OMA) [see flight details]
Milwaukee (MKE) - Fairbanks (FAI) [see flight details]
Milwaukee (MKE) - Phoenix (PHX) [see flight details]
Milwaukee (MKE) - Gerald R. Ford (GRR) [see flight details]
Milwaukee (MKE) - Raleigh (RDU) [see flight details]
Milwaukee (MKE) - Boise (BOI) [see flight details]
Milwaukee (MKE) - San José del Cabo (SJD) [see flight details]
Milwaukee (MKE) - Colorado Springs (COS) [see flight details]
Milwaukee (MKE) - Dayton (DAY) [see flight details]
Milwaukee (MKE) - Akron-Canton (CAK) [see flight details]
Milwaukee (MKE) - Aspen (ASE) [see flight details]
Milwaukee (MKE) - Salt Lake City (SLC) [see flight details]
Milwaukee (MKE) - Las Vegas (LAS) [see flight details]
Milwaukee (MKE) - San José (SJO) [see flight details]
Milwaukee (MKE) - Dane County (MSN) [see flight details]
Milwaukee (MKE) - Saint Louis (STL) [see flight details]
Milwaukee (MKE) - New Orleans (MSY) [see flight details]
Milwaukee (MKE) - Ronald Reagan Washington (DCA) [see flight details]
Milwaukee (MKE) - Oklahoma City (OKC) [see flight details]
Milwaukee (MKE) - Durango (DRO) [see flight details]
Milwaukee (MKE) - Philadelphia (PHL) [see flight details]
Milwaukee (MKE) - Fort Myers Southwest Florida (RSW) [see flight details]
Milwaukee (MKE) - Puerto Vallarta (PVR) [see flight details]
Milwaukee (MKE) - Houston George Bush (IAH) [see flight details]
Milwaukee (MKE) - Billings Logan (BIL) [see flight details]
Milwaukee (MKE) - Branson (BKG) [see flight details]
Milwaukee (MKE) - Cleveland (CLE) [see flight details]
Milwaukee (MKE) - Dallas Fort Worth (DFW) [see flight details]
Milwaukee (MKE) - Appleton (ATW) [see flight details]
Houston George Bush (IAH) - Milwaukee (MKE) [see flight details]
Houston George Bush (IAH) - Denver (DEN) [see flight details]
Gerald R. Ford (GRR) - Milwaukee (MKE) [see flight details]
Gerald R. Ford (GRR) - Denver (DEN) [see flight details]
Green Bay (GRB) - Denver (DEN) [see flight details]
Green Bay (GRB) - Milwaukee (MKE) [see flight details]
Hartford (BDL) - Milwaukee (MKE) [see flight details]
Hartford (BDL) - Denver (DEN) [see flight details]
Hartsfield-Jackson Atlanta (ATL) - Milwaukee (MKE) [see flight details]
Hartsfield-Jackson Atlanta (ATL) - Denver (DEN) [see flight details]
Indianapolis (IND) - Milwaukee (MKE) [see flight details]
Indianapolis (IND) - Denver (DEN) [see flight details]
Jackson (JAC) - Denver (DEN) [see flight details]
Jackson (JAC) - Milwaukee (MKE) [see flight details]
Dayton (DAY) - Milwaukee (MKE) [see flight details]
Dayton (DAY) - Denver (DEN) [see flight details]
Kansas City (MCI) - Milwaukee (MKE) [see flight details]
Kansas City (MCI) - Denver (DEN) [see flight details]
Las Vegas (LAS) - Milwaukee (MKE) [see flight details]
Las Vegas (LAS) - Denver (DEN) [see flight details]
Long Beach (LGB) - Milwaukee (MKE) [see flight details]
Long Beach (LGB) - Denver (DEN) [see flight details]
Los Angeles (LAX) - Denver (DEN) [see flight details]
Los Angeles (LAX) - Milwaukee (MKE) [see flight details]
Louisville (SDF) - Milwaukee (MKE) [see flight details]
Louisville (SDF) - Denver (DEN) [see flight details]
Mazatlán (MZT) - Milwaukee (MKE) [see flight details]
Mazatlán (MZT) - Denver (DEN) [see flight details]
Minneapolis (MSP) - Denver (DEN) [see flight details]
Minneapolis (MSP) - Milwaukee (MKE) [see flight details]
Santa Barbara (SBA) - Milwaukee (MKE) [see flight details]
Santa Barbara (SBA) - Denver (DEN) [see flight details]
Nashville (BNA) - Milwaukee (MKE) [see flight details]
Nashville (BNA) - Denver (DEN) [see flight details]
New Orleans (MSY) - Milwaukee (MKE) [see flight details]
New Orleans (MSY) - Denver (DEN) [see flight details]
New York LaGuardia (LGA) - Milwaukee (MKE) [see flight details]
New York LaGuardia (LGA) - Denver (DEN) [see flight details]
New York Newark Liberty (EWR) - Denver (DEN) [see flight details]
New York Newark Liberty (EWR) - Milwaukee (MKE) [see flight details]
Newport News/Williamsburg (PHF) - Milwaukee (MKE) [see flight details]
Newport News/Williamsburg (PHF) - Denver (DEN) [see flight details]
Oklahoma City (OKC) - Milwaukee (MKE) [see flight details]
Oklahoma City (OKC) - Denver (DEN) [see flight details]
Omaha (OMA) - Milwaukee (MKE) [see flight details]
Omaha (OMA) - Denver (DEN) [see flight details]
Orlando (MCO) - Milwaukee (MKE) [see flight details]
Orlando (MCO) - Denver (DEN) [see flight details]
Philadelphia (PHL) - Milwaukee (MKE) [see flight details]
Philadelphia (PHL) - Denver (DEN) [see flight details]
Phoenix (PHX) - Milwaukee (MKE) [see flight details]
Phoenix (PHX) - Denver (DEN) [see flight details]
Pittsburgh (PIT) - Denver (DEN) [see flight details]
Pittsburgh (PIT) - Milwaukee (MKE) [see flight details]
Portland (PDX) - Milwaukee (MKE) [see flight details]
Portland (PDX) - Denver (DEN) [see flight details]
Puerto Vallarta (PVR) - Milwaukee (MKE) [see flight details]
Puerto Vallarta (PVR) - Denver (DEN) [see flight details]
Raleigh (RDU) - Milwaukee (MKE) [see flight details]
Raleigh (RDU) - Denver (DEN) [see flight details]
Rapid City (RAP) - Denver (DEN) [see flight details]
Rapid City (RAP) - Milwaukee (MKE) [see flight details]
Sacramento (SMF) - Milwaukee (MKE) [see flight details]
Sacramento (SMF) - Denver (DEN) [see flight details]
Saint Louis (STL) - Milwaukee (MKE) [see flight details]
Saint Louis (STL) - Denver (DEN) [see flight details]
Salt Lake City (SLC) - Milwaukee (MKE) [see flight details]
Salt Lake City (SLC) - Denver (DEN) [see flight details]
San Antonio (SAT) - Milwaukee (MKE) [see flight details]
San Antonio (SAT) - Denver (DEN) [see flight details]
San Diego (SAN) - Denver (DEN) [see flight details]
San Diego (SAN) - Milwaukee (MKE) [see flight details]
San Francisco (SFO) - Milwaukee (MKE) [see flight details]
San Francisco (SFO) - Denver (DEN) [see flight details]
San José (SJO) - Milwaukee (MKE) [see flight details]
San José (SJO) - Denver (DEN) [see flight details]
San José del Cabo (SJD) - Milwaukee (MKE) [see flight details]
San José del Cabo (SJD) - Denver (DEN) [see flight details]
Santa Ana (SNA) - Denver (DEN) [see flight details]
Santa Ana (SNA) - Milwaukee (MKE) [see flight details]
Seattle (SEA) - Denver (DEN) [see flight details]
Seattle (SEA) - Milwaukee (MKE) [see flight details]
Fort Myers Southwest Florida (RSW) - Milwaukee (MKE) [see flight details]
Fort Myers Southwest Florida (RSW) - Denver (DEN) [see flight details]
Spokane (GEG) - Milwaukee (MKE) [see flight details]
Spokane (GEG) - Denver (DEN) [see flight details]
St. Petersburg (TPA) - Denver (DEN) [see flight details]
St. Petersburg (TPA) - Milwaukee (MKE) [see flight details]
Tucson (TUS) - Milwaukee (MKE) [see flight details]
Tucson (TUS) - Denver (DEN) [see flight details]
Ronald Reagan Washington (DCA) - Milwaukee (MKE) [see flight details]
Ronald Reagan Washington (DCA) - Denver (DEN) [see flight details]
Wichita (ICT) - Milwaukee (MKE) [see flight details]
Wichita (ICT) - Denver (DEN) [see flight details]
Yampa Valley (HDN) - Milwaukee (MKE) [see flight details]
Yampa Valley (HDN) - Denver (DEN) [see flight details]

The tickets for the newly introduced low cost flights are already available online. Frontier is a cheap airline that operates on 270 low cost routes.