|
| Destination | Airline |
| Aguadilla, PR (BQN) | Spirit Airlines (Non-Direct) |
| Albany, NY (ALB) | Northwest Airlines (Direct) Southwest Airlines (Non-Direct) |
| Albuquerque, NM (ABQ) | Southwest Airlines (Non-Direct) |
| Anchorage, AK (ANC) | Northwest Airlines (Direct) |
| Atlanta, GA (ATL) | Airtran Airways (Direct) Delta Air Lines (Direct) |
| Baltimore, MD (BWI) | Northwest Airlines (Direct) Southwest Airlines (Direct) |
| Birmingham, AL (BHM) | Southwest Airlines (Non-Direct) |
| Boston, MA (BOS) | Northwest Airlines (Direct) |
| Bozeman, MT (BZN) | Northwest Airlines (Direct) |
| Brownsville, TX (BRO) | Continental Airlines (Non-Direct) |
| Buffalo, NY (BUF) | Northwest Airlines (Direct) |
| Burbank, CA (BUR) | American Airlines (Non-Direct) Southwest Airlines (Non-Direct) |
| Charlotte, NC (CLT) | Northwest Airlines (Direct) US Airways (Direct) |
| Chicago, IL (MDW) | Southwest Airlines (Direct) |
| Chicago, IL (ORD) | American Airlines (Direct) Northwest Airlines (Direct) United Airlines (Direct) |
| Cleveland, OH (CLE) | Northwest Airlines (Direct) |
| Columbus, OH (CMH) | Northwest Airlines (Direct) |
| Dallas, TX (DAL) | Southwest Airlines (Non-Direct) |
| Dallas-Fort Worth, TX (DFW) | American Airlines (Direct) Northwest Airlines (Direct) |
| Denver, CO (DEN) | Frontier Airlines (Direct) Northwest Airlines (Direct) United Airlines (Direct) |
| El Paso, TX (ELP) | American Airlines (Non-Direct) |
| Flint, MI (FNT) | Northwest Airlines (Direct) |
| Fort Lauderdale, FL (FLL) | Northwest Airlines (Direct) Southwest Airlines (Non-Direct) Spirit Airlines (Direct) |
| Fort Myers, FL (RSW) | Northwest Airlines (Direct) Spirit Airlines (Direct) USA 3000 Airlines (Direct) |
| Grand Rapids, MI (GRR) | Northwest Airlines (Direct) |
| Green Bay, WI (GRB) | Northwest Airlines (Direct) |
| Harrisburg, PA (MDT) | Northwest Airlines (Direct) |
| Houston, TX (HOU) | Southwest Airlines (Non-Direct) |
| Houston, TX (IAH) | Continental Airlines (Direct) Northwest Airlines (Direct) |
| Indianapolis, IN (IND) | Northwest Airlines (Direct) |
| Jacksonville, FL (JAX) | Northwest Airlines (Direct) Southwest Airlines (Non-Direct) |
| Kahului, HI (OGG) | United Airlines (Non-Direct) |
| Kansas City, MO (MCI) | Northwest Airlines (Direct) Southwest Airlines (Non-Direct) |
| Lansing, MI (LAN) | Northwest Airlines (Direct) |
| Las Vegas, NV (LAS) | Northwest Airlines (Direct) Southwest Airlines (Non-Direct) Spirit Airlines (Direct) US Airways (Direct) |
| Little Rock, AR (LIT) | Northwest Airlines (Non-Direct) Southwest Airlines (Non-Direct) |
| Los Angeles, CA (LAX) | Northwest Airlines (Direct) Southwest Airlines (Non-Direct) Spirit Airlines (Direct) |
| Louisville, KY (SDF) | Northwest Airlines (Direct) Southwest Airlines (Non-Direct) |
| Madison, WI (MSN) | Northwest Airlines (Direct) |
| Manchester, NH (MHT) | Northwest Airlines (Direct) |
| Memphis, TN (MEM) | Northwest Airlines (Direct) |
| Miami, FL (MIA) | American Airlines (Direct) Northwest Airlines (Direct) |
| Milwaukee, WI (MKE) | Northwest Airlines (Direct) |
| Minneapolis, MN (MSP) | Northwest Airlines (Direct) Southwest Airlines (Non-Direct) |
| Myrtle Beach, SC (MYR) | Spirit Airlines (Direct) US Airways (Non-Direct) |
| Nashville, TN (BNA) | Northwest Airlines (Direct) Southwest Airlines (Direct) US Airways (Non-Direct) |
| New Orléans, LA (MSY) | Southwest Airlines (Non-Direct) |
| New York, NY (LGA) | Northwest Airlines (Direct) Spirit Airlines (Direct) |
| New York, NY (JFK) | Northwest Airlines (Direct) |
| Newark, NJ (EWR) | Continental Airlines (Direct) Northwest Airlines (Direct) |
| Norfolk, VA (ORF) | Northwest Airlines (Direct) Southwest Airlines (Non-Direct) |
| Oakland, CA (OAK) | Southwest Airlines (Non-Direct) |
| Oklahoma City, OK (OKC) | American Airlines (Non-Direct) Southwest Airlines (Non-Direct) |
| Omaha, NE (OMA) | Northwest Airlines (Non-Direct) Southwest Airlines (Non-Direct) |
| Ontario, CA (ONT) | US Airways (Non-Direct) |
| Orlando, FL (MCO) | Airtran Airways (Direct) Northwest Airlines (Direct) Southwest Airlines (Direct) Spirit Airlines (Direct) US Airways (Non-Direct) |
| Philadelphia, PA (PHL) | Northwest Airlines (Direct) US Airways (Direct) |
| Phoenix, AZ (PHX) | Northwest Airlines (Direct) Southwest Airlines (Direct) US Airways (Direct) |
| Pittsburgh, PA (PIT) | Northwest Airlines (Direct) |
| Portland, OR (PDX) | Northwest Airlines (Direct) Southwest Airlines (Non-Direct) |
| Providence, RI (PVD) | Northwest Airlines (Direct) Southwest Airlines (Non-Direct) |
| Raleigh/Durham, NC (RDU) | Northwest Airlines (Direct) Southwest Airlines (Non-Direct) |
| Reno, NV (RNO) | Southwest Airlines (Non-Direct) |
| Sacramento, CA (SMF) | Southwest Airlines (Non-Direct) |
| Saginaw, MI (MBS) | Northwest Airlines (Direct) |
| Salt Lake City, UT (SLC) | Delta Air Lines (Direct) Northwest Airlines (Direct) Southwest Airlines (Non-Direct) |
| San Antonio, TX (SAT) | Southwest Airlines (Non-Direct) |
| San Diego, CA (SAN) | Northwest Airlines (Direct) Southwest Airlines (Non-Direct) US Airways (Non-Direct) |
| San Francisco, CA (SFO) | Northwest Airlines (Direct) Southwest Airlines (Non-Direct) |
| San José, CA (SJC) | Southwest Airlines (Non-Direct) |
| San Juan, PR (SJU) | Northwest Airlines (Direct) Spirit Airlines (Non-Direct) |
| Santa Ana, CA (SNA) | Northwest Airlines (Direct) United Airlines (Non-Direct) |
| Sarasota/Bradenton, FL (SRQ) | Airtran Airways (Direct) Northwest Airlines (Direct) |
| Seattle, WA (SEA) | Northwest Airlines (Direct) |
| St. Louis, MO (STL) | Northwest Airlines (Direct) Southwest Airlines (Direct) |
| Syracuse, NY (SYR) | Northwest Airlines (Direct) |
| Tampa, FL (TPA) | Northwest Airlines (Direct) Southwest Airlines (Non-Direct) Spirit Airlines (Direct) |
| Traverse City, MI (TVC) | Northwest Airlines (Direct) |
| Washington, DC (IAD) | Northwest Airlines (Direct) |
| Washington, DC (DCA) | Northwest Airlines (Direct) |
| West Palm Beach, FL (PBI) | Northwest Airlines (Direct) Spirit Airlines (Direct) |
| Windsor Locks, CT (BDL) | Northwest Airlines (Direct) Southwest Airlines (Non-Direct) |