| Vancouver (Vancouver International Airport) |
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Winnipeg (Winnipeg James Armstrong Richardson International Airport) |
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Halifax (Halifax International Airport) |
| Kitchener/Waterloo (Region of Waterloo International Airport) |
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London, Ontario (London International Airport) |
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Ottawa (Ottawa Macdonald-Cartier International Airport) |
| Thunder Bay (Thunder Bay International Airport) |
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Toronto (Toronto Pearson International Airport) |
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Charlottetown (Charlottetown Airport) Seasonal |
| Montréal (Montréal-Pierre Elliott Trudeau International Airport) |
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Quebec City (Québec/Jean Lesage International Airport) |
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Regina (Regina International Airport) |
| Saskatoon (Saskatoon International Airport) |
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Birmingham (Birmingham-Shuttlesworth International Airport) |
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Huntsville/Decatur (Huntsville International Airport) |
| Mobile/Pascagoula, Mississippi (Mobile Regional Airport) |
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Montgomery (Montgomery Regional Airport) |
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Muscle Shoals (Northwest Alabama Regional Airport) |
| Phoenix/Scottsdale (Sky Harbor International Airport) |
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Fayetteville (Northwest Arkansas Regional Airport) |
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Fort Smith (Fort Smith Regional Airport) |
| Little Rock (Little Rock National Airport) |
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Denver (Denver International Airport) |
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Hartford/Springfield, Massachusetts (Bradley International Airport) |
| Fort Lauderdale (Fort Lauderdale-Hollywood International Airport) |
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Fort Myers (Southwest Florida International Airport) |
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Jacksonville (Jacksonville International Airport) |
| Panama City (Panama City-Bay County International Airport) |
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Pensacola (Pensacola Regional Airport) |
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Tallahassee (Tallahassee Regional Airport) |
| Tampa (Tampa International Airport) |
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Atlanta (Hartsfield-Jackson Atlanta International Airport) |
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Savannah (Savannah/Hilton Head International Airport) |
| Idaho Falls (Idaho Falls Regional Airport) |
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Bloomington/Normal (Central Illinois Regional Airport) |
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Champaign/Urbana (University of Illinois Willard Airport) |
| Chicago (Chicago Midway International Airport) |
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Moline/Rock Island/Bettendorf, Iowa/Davenport, Iowa (Quad City International Airport) |
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Peoria (Greater Peoria Regional Airport) |
| Evansville (Evansville Regional Airport) |
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Fort Wayne (Fort Wayne International Airport) |
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Indianapolis (Indianapolis International Airport) |
| South Bend (South Bend Regional Airport) |
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Cedar Rapids (The Eastern Iowa Airport) |
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Des Moines (Des Moines International Airport) |
| Dubuque (Dubuque Regional Airport) |
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Fort Dodge (Fort Dodge Regional Airport) |
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Mason City (Mason City Municipal Airport) |
| Sioux City (Sioux Gateway Airport) |
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Waterloo (Waterloo Regional Airport) |
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Wichita (Wichita Mid-Continent Airport) |
| Cincinnati, Ohio suburbs (Cincinnati/Northern Kentucky International Airport) |
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Lexington (Blue Grass Airport) |
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Louisville (Louisville International Airport) |
| Paducah (Barkley Regional Airport) |
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Alexandria (Alexandria International Airport) |
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Baton Rouge (Baton Rouge Metropolitan Airport) |
| Lafayette (Lafayette Regional Airport) |
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Monroe (Monroe Regional Airport) |
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Shreveport (Shreveport Regional Airport) |
| Bangor (Bangor International Airport) |
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Portland (Portland International Jetport) |
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Baltimore (Baltimore-Washington International Thurgood Marshall Airport) |
| Boston (Logan International Airport) |
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Alpena (Alpena County Regional Airport) |
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Detroit (Detroit Metropolitan Wayne County Airport) Hub |
| Flint (Bishop International Airport) |
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Grand Rapids (Gerald R. Ford International Airport) |
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Kalamazoo/Battle Creek (Kalamazoo-Battle Creek International Airport) |
| Lansing (Lansing Capital City Airport) |
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Marquette (Sawyer International Airport) |
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Muskegon (Muskegon County Airport) |
| Pellston (Pellston Regional Airport) |
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Saginaw (MBS International Airport) |
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Traverse City (Cherry Capital Airport) |
| Bemidji (Bemidji Regional Airport) |
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Brainerd (Brainerd Lakes Regional Airport) |
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Duluth/Superior, Wisconsin (Duluth International Airport) |
| Hibbing (Chisholm-Hibbing Airport) |
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International Falls (Falls International Airport) |
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Minneapolis/Saint Paul (Minneapolis-Saint Paul International Airport) Hub |
| Rochester (Rochester International Airport) |
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St. Cloud (St. Cloud Regional Airport) |
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Thief River Falls (Thief River Falls Regional Airport) |
| Greenville (Mid Delta Regional Airport) |
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Gulfport/Biloxi (Gulfport-Biloxi International Airport) |
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Hattiesburg/Laurel (Hattiesburg-Laurel Regional Airport) |
| Jackson (Jackson-Evers International Airport) |
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Tupelo (Tupelo Regional Airport) |
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Columbia (Columbia Regional Airport) |
| Kansas City (Kansas City International Airport) |
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Springfield/Branson (Springfield-Branson National Airport) |
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St. Louis (Lambert-St. Louis International Airport) |
| Helena (Helena Regional Airport) |
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Lincoln (Lincoln Airport) |
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Omaha (Eppley Airfield) |
| Newark (Newark Liberty International Airport) |
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Albany (Albany International Airport) |
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Binghamton (Greater Binghamton Airport) |
| Elmira/Corning (Elmira-Corning Regional Airport) |
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Ithaca (Ithaca Tompkins Regional Airport) |
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New York City (LaGuardia Airport) |
| Newburgh (Stewart International Airport) |
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Rochester (Greater Rochester International Airport) |
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White Plains (Westchester County Airport) |
| Asheville (Asheville Regional Airport) |
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Charlotte (Charlotte/Douglas International Airport) |
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Greensboro/High Point/Winston-Salem (Piedmont Triad International Airport) |
| Raleigh/Durham (Raleigh-Durham International Airport) |
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Bismarck (Bismarck Municipal Airport) |
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Devils Lake (Devils Lake Municipal Airport) |
| Fargo (Hector International Airport) |
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Grand Forks (Grand Forks International Airport) |
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Jamestown (Jamestown Regional Airport) |
| Akron/Canton (Akron-Canton Regional Airport) |
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Cleveland (Cleveland-Hopkins International Airport) |
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Columbus (Port Columbus International Airport) |
| Dayton (Dayton International Airport) |
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Toledo (Toledo Express Airport) |
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Oklahoma City (Will Rogers World Airport) |
| Tulsa (Tulsa International Airport) |
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Allentown/Bethlehem (Lehigh Valley International Airport) |
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Harrisburg (Harrisburg International Airport) |
| Latrobe (Arnold Palmer Regional Airport) |
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Philadelphia (Philadelphia International Airport) |
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Pittsburgh (Pittsburgh International Airport) |
| State College (University Park Airport) |
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Wilkes-Barre/Scranton (Wilkes-Barre/Scranton International Airport) |
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Charleston (Charleston International Airport) |
| Columbia (Columbia Metropolitan Airport) |
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Greenville/Spartanburg (Greenville-Spartanburg International Airport) |
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Myrtle Beach (Myrtle Beach International Airport) |
| Aberdeen (Aberdeen Regional Airport) |
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Pierre (Pierre Regional Airport) |
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Rapid City (Rapid City Regional Airport) |
| Sioux Falls (Sioux Falls Regional Airport) |
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Watertown (Watertown Regional Airport) |
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Bristol/Kingsport/Johnson City (Tri-Cities Regional Airport) |
| Chattanooga (Chattanooga Metropolitan Airport) |
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Knoxville (McGhee Tyson Airport) |
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Memphis (Memphis International Airport) Hub |
| Austin (Austin-Bergstrom International Airport) |
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Dallas/Fort Worth (Dallas-Fort Worth International Airport) |
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Houston (George Bush Intercontinental Airport) |
| Burlington (Burlington International Airport) |
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Charlottesville (Charlottesville-Albemarle Airport) |
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Norfolk/Virginia Beach/Williamsburg (Norfolk International Airport) |
| Richmond (Richmond International Airport) |
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Roanoke (Roanoke Regional Airport) |
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Washington, D.C. (Ronald Reagan Washington National Airport) |
| Washington, D.C.(Washington Dulles International Airport) |
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Charleston (Yeager Airport) |
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Appleton (Outagamie County Regional Airport) |
| Eau Claire (Chippewa Valley Regional Airport) |
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Green Bay (Austin Straubel International Airport) |
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La Crosse (La Crosse Municipal Airport) |
| Madison (Dane County Regional Airport) |
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Milwaukee (General Mitchell International Airport) |
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Rhinelander (Rhinelander-Oneida County Airport) |
| Wausau (Central Wisconsin Airport) |
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Casper (Natrona County International Airport) |
