| Denver (DEN) | IAH 99 a week, HOU 51 a week |
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| Atlanta (ATL) | IAH 94 a week, HOU 53 a week |
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| Dallas/Fort Worth (DFW) | IAH 108 a week, HOU 36 a week |
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| Chicago (ORD) | IAH 122 a week |
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| Los Angeles (LAX) | IAH 93 a week, HOU 26 a week |
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| Orlando (MCO) | IAH 59 a week, HOU 45 a week |
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| New York (LGA) | IAH 76 a week, HOU 25 a week |
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| Las Vegas (LAS) | IAH 59 a week, HOU 37 a week |
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| New Orleans (MSY) | IAH 47 a week, HOU 45 a week |
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| Phoenix (PHX) | IAH 55 a week, HOU 34 a week |
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| Washington (DCA) | IAH 61 a week, HOU 19 a week |
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| Fort Lauderdale (FLL) | IAH 57 a week, HOU 18 a week |
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| Dallas (DAL) | HOU 74 a week |
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| Miami (MIA) | IAH 64 a week, HOU 9 a week |
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| Austin (AUS) | IAH 47 a week, HOU 20 a week |
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| Newark (EWR) | IAH 67 a week |
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| San Francisco (SFO) | IAH 67 a week |
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| Nashville (BNA) | HOU 39 a week, IAH 27 a week |
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| San Antonio (SAT) | IAH 41 a week, HOU 21 a week |
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| Seattle (SEA) | IAH 52 a week, HOU 7 a week |
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| Baltimore (BWI) | HOU 33 a week, IAH 24 a week |
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| San Diego (SAN) | IAH 33 a week, HOU 20 a week |
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| Minneapolis (MSP) | IAH 47 a week |
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| Boston (BOS) | IAH 45 a week |
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| Charlotte (CLT) | IAH 45 a week |
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| Tampa (TPA) | IAH 25 a week, HOU 19 a week |
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| Chicago (MDW) | HOU 43 a week, IAH 0 a week |
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| Salt Lake City (SLC) | IAH 33 a week, HOU 8 a week |
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| Oklahoma City (OKC) | HOU 21 a week, IAH 21 a week |
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| St. Louis (STL) | HOU 35 a week, IAH 6 a week |
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| Detroit (DTW) | IAH 39 a week |
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| Memphis (MEM) | IAH 21 a week, HOU 18 a week |
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| Philadelphia (PHL) | IAH 37 a week |
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| Washington (IAD) | IAH 36 a week |
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| Kansas City (MCI) | HOU 21 a week, IAH 14 a week |
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| Midland/Odessa (MAF) | HOU 26 a week, IAH 7 a week |
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| Shreveport (SHV) | IAH 33 a week |
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| San Juan (SJU) | IAH 21 a week, HOU 7 a week |
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| Albuquerque (ABQ) | HOU 21 a week, IAH 7 a week |
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| Corpus Christi (CRP) | HOU 20 a week, IAH 7 a week |
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| Portland (PDX) | IAH 26 a week |
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| Pittsburgh (PIT) | IAH 19 a week, HOU 7 a week |
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| Raleigh/Durham (RDU) | IAH 19 a week, HOU 7 a week |
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| Indianapolis (IND) | IAH 14 a week, HOU 11 a week |
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| Tulsa (TUL) | IAH 16 a week, HOU 8 a week |
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| Omaha (OMA) | IAH 14 a week, HOU 8 a week |
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| Ontario (ONT) | IAH 14 a week, HOU 7 a week |
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| Harlingen/San Benito (HRL) | HOU 21 a week |
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| Sacramento (SMF) | IAH 14 a week, HOU 7 a week |
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| Santa Ana (SNA) | IAH 21 a week |
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| El Paso (ELP) | HOU 20 a week, IAH 0 a week |
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| Cleveland (CLE) | IAH 20 a week |
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| Chattanooga (CHA) | IAH 14 a week |
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| Jackson/Vicksburg (JAN) | HOU 14 a week |
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| Montgomery (MGM) | IAH 14 a week |
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| Pensacola (PNS) | IAH 7 a week, HOU 7 a week |
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| Alexandria (AEX) | IAH 14 a week |
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| Aspen (ASE) | IAH 14 a week |
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| Little Rock (LIT) | IAH 14 a week |
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| San Jose (SJC) | HOU 7 a week, IAH 7 a week |
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| Jacksonville (JAX) | IAH 7 a week, HOU 7 a week |
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| Columbus (CMH) | HOU 7 a week, IAH 6 a week |
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| Mission/McAllen/Edinburg (MFE) | IAH 13 a week |
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| Fort Myers (RSW) | IAH 13 a week |
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| Cincinnati (CVG) | IAH 12 a week |
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| Meridian (MEI) | IAH 12 a week |
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| Victoria (VCT) | IAH 12 a week |
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| New York (JFK) | IAH 12 a week |
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| Hattiesburg/Laurel (PIB) | IAH 12 a week |
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| Charleston (CHS) | IAH 6 a week, HOU 5 a week |
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| Panama City (ECP) | HOU 10 a week, IAH 0 a week |
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| Des Moines (DSM) | IAH 7 a week, HOU 2 a week |
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| Birmingham (BHM) | HOU 9 a week, IAH 0 a week |
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| Abilene (ABI) | IAH 7 a week |
|---|
| Anchorage (ANC) | IAH 7 a week |
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| Hartford (BDL) | IAH 7 a week |
|---|
| Honolulu (HNL) | IAH 7 a week |
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| Wichita (ICT) | IAH 7 a week |
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| Lubbock (LBB) | HOU 7 a week, IAH 0 a week |
|---|
| Long Beach (LGB) | HOU 7 a week |
|---|
| Milwaukee (MKE) | IAH 7 a week |
|---|
| Oakland (OAK) | HOU 7 a week |
|---|
| Norfolk (ORF) | IAH 7 a week |
|---|
| Paducah (PAH) | IAH 7 a week |
|---|
| West Palm Beach/Palm Beach (PBI) | IAH 7 a week |
|---|
| Louisville (SDF) | HOU 7 a week |
|---|
| Charlotte Amalie (STT) | IAH 7 a week |
|---|
| Valparaiso (VPS) | HOU 7 a week |
|---|
| Colorado Springs (COS) | HOU 7 a week, IAH 0 a week |
|---|
| Natchez (HEZ) | IAH 7 a week |
|---|
| Richmond (RIC) | IAH 7 a week |
|---|
| Durango (DRO) | IAH 6 a week |
|---|
| Traverse City (TVC) | IAH 5 a week |
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| Fayetteville (XNA) | IAH 5 a week |
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| Savannah (SAV) | HOU 5 a week |
|---|
| Salina (SLN) | IAH 5 a week |
|---|
| Hayden (HDN) | IAH 3 a week |
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| Provo (PVU) | HOU 3 a week |
|---|
| Asheville (AVL) | HOU 2 a week |
|---|
| Bozeman (BZN) | IAH 2 a week |
|---|
| Eagle (EGE) | IAH 2 a week |
|---|
| Jackson (JAC) | IAH 2 a week |
|---|
| Knoxville (TYS) | HOU 2 a week |
|---|
| Reno (RNO) | IAH 2 a week |
|---|
| Auckland (AKL) | IAH (frequency not filed) |
|---|
| Amarillo (AMA) | IAH 0 a week |
|---|
| Amsterdam (AMS) | IAH (frequency not filed) |
|---|
| Bogotá (BOG) | IAH (frequency not filed) |
|---|
| Baton Rouge (BTR) | IAH 0 a week |
|---|
| Belize City (BZE) | IAH (frequency not filed), HOU (frequency not filed) |
|---|
| Paris Charles de Gaulle (CDG) | IAH (frequency not filed) |
|---|
| Cancún (CUN) | IAH (frequency not filed), HOU (frequency not filed) |
|---|
| Doha (DOH) | IAH (frequency not filed) |
|---|
| Dubai (DXB) | IAH (frequency not filed) |
|---|
| Buenos Aires (EZE) | IAH (frequency not filed) |
|---|
| Frankfurt (FRA) | IAH (frequency not filed) |
|---|
| Guadalajara (GDL) | IAH (frequency not filed) |
|---|
| Rio de Janeiro (GIG) | IAH (frequency not filed) |
|---|
| São Paulo (GRU) | IAH (frequency not filed) |
|---|
| Greer (GSP) | HOU 0 a week |
|---|
| Guatemala City (GUA) | IAH (frequency not filed) |
|---|
| Tokyo Haneda (HND) | IAH (frequency not filed) |
|---|
| Hobbs (HOB) | IAH 0 a week |
|---|
| Istanbul (IST) | IAH (frequency not filed) |
|---|
| Lafayette (LFT) | IAH 0 a week |
|---|
| London Heathrow (LHR) | IAH (frequency not filed) |
|---|
| Lima (LIM) | IAH (frequency not filed) |
|---|
| Liberia (Costa Rica) (LIR) | IAH (frequency not filed), HOU (frequency not filed) |
|---|
| Montego Bay (MBJ) | IAH (frequency not filed), HOU (frequency not filed) |
|---|
| Mexico City (MEX) | IAH (frequency not filed) |
|---|
| Managua (MGA) | IAH (frequency not filed) |
|---|
| Montrose/Delta (MTJ) | IAH 0 a week |
|---|
| Monterrey (MTY) | IAH (frequency not filed) |
|---|
| Munich (MUC) | IAH (frequency not filed) |
|---|
| Nassau (NAS) | IAH (frequency not filed), HOU (frequency not filed) |
|---|
| Tokyo Narita (NRT) | IAH (frequency not filed) |
|---|
| Panama City (PTY) | IAH (frequency not filed) |
|---|
| Punta Cana (PUJ) | IAH (frequency not filed) |
|---|
| Puerto Vallarta (PVR) | IAH (frequency not filed), HOU (frequency not filed) |
|---|
| Querétaro (QRO) | IAH (frequency not filed) |
|---|
| Roatán (RTB) | IAH (frequency not filed) |
|---|
| San Salvador (SAL) | IAH (frequency not filed) |
|---|
| San Pedro Sula (SAP) | IAH (frequency not filed) |
|---|
| Los Cabos (SJD) | IAH (frequency not filed), HOU (frequency not filed) |
|---|
| San José (SJO) | IAH (frequency not filed), HOU (frequency not filed) |
|---|
| Sydney (SYD) | IAH (frequency not filed) |
|---|
| Taipei (TPE) | IAH (frequency not filed) |
|---|
| Tucson (TUS) | IAH 0 a week, HOU 0 a week |
|---|
| Quito (UIO) | IAH (frequency not filed) |
|---|
| Calgary (YYC) | IAH (frequency not filed) |
|---|
| Toronto Pearson (YYZ) | IAH (frequency not filed) |
|---|