Houston Airport (IAH)
Houston George Bush International Airport averages 608 flights per day to 200 destinations, with 127 domestic and 73 international routes. A total of 55 airlines operate at IAH, led by United Airlines. This airport provides direct service to 38 countries across six continents, with a route network dominated by domestic flights and Mexico as its largest international market. The longest nonstop route from Houston connects to Sydney, with a typical flight time of 15 hrs 45 mins.
- Destinations
- 200 (127 domestic · 73 international)
- Flights per day
- 608 (481 domestic · 129 international)
- Busiest Route
- Dallas-Fort Worth (17/day)
- Top Country
- United States (481 flights/day)
- Longest Runway
- 12,037 ft / 3,669 m
Weather in Houston
200 Destinations from Houston Airport (IAH)
This week, 200 active routes depart from Houston International Airport. The busiest route connects Houston with Dallas-Fort Worth and is operated by 3 airlines. The longest nonstop flight is to Sydney, and the shortest flight is to Houston.
All Destinations
| Flights | Destination | Route | Airlines |
|---|---|---|---|
| 17 | Dallas-Fort Worth |
IAH → DFW
1 hr 35 mins |
American Airlines, Envoy Air, United Airlines3 |
| 16 | Chicago |
IAH → ORD
2 hrs 40 mins |
American Airlines, Envoy Air, Frontier Airlines, Spirit Airlines, United Airlines5 |
| 15 | Los Angeles |
IAH → LAX
3 hrs 25 mins |
Delta Air Lines, Frontier Airlines, SkyWest Airlines, Spirit Airlines, United Airlines, American Airlines6 |
| 15 | Atlanta |
IAH → ATL
2 hrs 20 mins |
Delta Air Lines, Frontier Airlines, Mesa Airlines, Spirit Airlines, United Airlines5 |
| 14 | Denver |
IAH → DEN
2 hrs 30 mins |
ATI, Frontier Airlines, United Airlines, Volaris4 |
| 12 | Miami |
IAH → MIA
2 hrs 35 mins |
American Airlines, Envoy Air, Frontier Airlines, Spirit Airlines, United Airlines5 |
| 12 | Orlando (MCO) |
IAH → MCO
2 hrs 25 mins |
Frontier Airlines, Spirit Airlines, United Airlines3 |
| 12 | Newark |
IAH → EWR
3 hrs 30 mins |
Spirit Airlines, United Airlines2 |
| 12 | San Francisco |
IAH → SFO
4 hrs |
United Airlines1 |
| 11 | Washington (DCA) |
IAH → DCA
2 hrs 55 mins |
American Airlines, United Airlines2 |
| 11 | Mexico City |
IAH → MEX
2 hrs 20 mins |
Aeromexico, United Airlines, VivaAerobus, Volaris4 |
| 10 | Las Vegas |
IAH → LAS
3 hrs 10 mins |
Frontier Airlines, NetJets Aviation, Spirit Airlines, United Airlines, Volaris5 |
| 10 | Fort Lauderdale |
IAH → FLL
2 hrs 50 mins |
Frontier Airlines, Spirit Airlines, United Airlines3 |
| 9 | New York (LGA) |
IAH → LGA
3 hrs 35 mins |
Spirit Airlines, United Airlines2 |
| 9 | Phoenix |
IAH → PHX
2 hrs 45 mins |
American Airlines, Frontier Airlines, United Airlines3 |
| 8 | Monterrey |
IAH → MTY
1 hr 50 mins |
United Airlines, VivaAerobus2 |
| 8 | New Orleans |
IAH → MSY
1 hr 30 mins |
United Airlines1 |
| 8 | Charlotte |
IAH → CLT
2 hrs 30 mins |
American Airlines, Frontier Airlines, Mesa Airlines, United Airlines, Volaris5 |
| 8 | Austin |
IAH → AUS
1 hr 15 mins |
United Airlines1 |
| 8 | San Antonio |
IAH → SAT
1 hr 20 mins |
Mesa Airlines, United Airlines2 |
| 8 | Oklahoma City |
IAH → OKC
1 hr 40 mins |
Delta Air Lines, JRE, United Airlines3 |
| 7 | Corpus Christi |
IAH → CRP
1 hr 15 mins |
United Airlines1 |
| 7 | Detroit |
IAH → DTW
2 hrs 55 mins |
Delta Air Lines, Frontier Airlines, Mesa Airlines, Spirit Airlines, United Airlines5 |
| 6 | Cancún |
IAH → CUN
2 hrs 50 mins |
Spirit Airlines, United Airlines2 |
| 6 | Santa Clara |
IAH → SAL
2 hrs 50 mins |
Avianca, Frontier Airlines, Spirit Airlines, United Airlines, Vuela El Salvador5 |
| 6 | Baton Rouge |
IAH → BTR
1 hr 15 mins |
PWR, United Airlines2 |
| 6 | Midland |
IAH → MAF
1 hr 40 mins |
United Airlines1 |
| 6 | Salt Lake City |
IAH → SLC
3 hrs |
Delta Air Lines, Mesa Airlines, United Airlines3 |
| 6 | Baltimore |
IAH → BWI
3 hrs 15 mins |
ATI, Frontier Airlines, Spirit Airlines, United Airlines4 |
| 5 | Kansas City |
IAH → MCI
2 hrs 5 mins |
Mesa Airlines, United Airlines2 |
| 5 | Minneapolis |
IAH → MSP
2 hrs 45 mins |
Delta Air Lines, Mesa Airlines, United Airlines3 |
| 5 | Tulsa |
IAH → TUL
1 hr 40 mins |
United Airlines1 |
| 5 | Philadelphia |
IAH → PHL
3 hrs 5 mins |
American Airlines, Frontier Airlines, Mesa Airlines, United Airlines4 |
| 5 | Lafayette |
IAH → LFT
1 hr 10 mins |
United Airlines1 |
| 5 | Cincinnati |
IAH → CVG
2 hrs 40 mins |
Alaska Airlines, ATI, Atlas Air, Mesa Airlines, United Airlines5 |
| 5 | El Paso |
IAH → ELP
2 hrs 10 mins |
Mesa Airlines, United Airlines2 |
| 5 | Tampa |
IAH → TPA
2 hrs 20 mins |
Frontier Airlines, United Airlines2 |
| 5 | Indianapolis |
IAH → IND
2 hrs 25 mins |
Mesa Airlines, United Airlines2 |
| 4 | Mc Allen |
IAH → MFE
1 hr 25 mins |
Mesa Airlines, United Airlines2 |
| 4 | Pensacola |
IAH → PNS
1 hr 45 mins |
TCA, United Airlines2 |
| 4 | San Diego |
IAH → SAN
3 hrs 15 mins |
United Airlines1 |
| 4 | Seattle |
IAH → SEA
4 hrs 15 mins |
Alaska Airlines, United Airlines2 |
| 4 | Birmingham |
IAH → BHM
2 hrs |
Mesa Airlines, PWR, United Airlines3 |
| 4 | Northwest Arkansas |
IAH → XNA
1 hr 40 mins |
Mesa Airlines, United Airlines2 |
| 4 | Knoxville |
IAH → TYS
2 hrs 10 mins |
United Airlines1 |
| 4 | Memphis |
IAH → MEM
1 hr 50 mins |
Delta Air Lines, Mesa Airlines, United Airlines3 |
| 4 | Wichita |
IAH → ICT
1 hr 50 mins |
United Airlines1 |
| 4 | Brownsville |
IAH → BRO
1 hr 25 mins |
United Airlines1 |
| 4 | Harlingen |
IAH → HRL
1 hr 20 mins |
GlobalX Airlines, United Airlines2 |
| 4 | Little Rock |
IAH → LIT
1 hr 35 mins |
United Airlines1 |
| 4 | Boston |
IAH → BOS
3 hrs 45 mins |
Flexjet, JetBlue Airways, United Airlines3 |
| 4 | Mobile |
IAH → MOB
1 hr 40 mins |
United Airlines1 |
| 4 | Nashville |
IAH → BNA
2 hrs 5 mins |
Delta Air Lines, Libyan Airlines, Mesa Airlines, United Airlines4 |
| 4 | Guadalajara |
IAH → GDL
2 hrs 20 mins |
United Airlines, VivaAerobus, Volaris3 |
| 4 | Guatemala City |
IAH → GUA
2 hrs 40 mins |
Frontier Airlines, GlobalX Airlines, Spirit Airlines, United Airlines4 |
| 4 | Jackson |
IAH → JAN
1 hr 25 mins |
United Airlines1 |
| 4 | Lubbock |
IAH → LBB
1 hr 45 mins |
United Airlines1 |
| 4 | Shreveport |
IAH → SHV
1 hr 10 mins |
United Airlines1 |
| 4 | Toronto |
IAH → YYZ
3 hrs 5 mins |
Air Canada, United Airlines2 |
| 4 | Huntsville |
IAH → HSV
1 hr 55 mins |
United Airlines1 |
| 4 | London |
IAH → LHR
8 hrs 55 mins |
British Airways, United Airlines2 |
| 4 | Querétaro |
IAH → QRO
2 hrs 5 mins |
United Airlines, VivaAerobus2 |
| 3 | Omaha |
IAH → OMA
2 hrs 15 mins |
Mesa Airlines, United Airlines2 |
| 3 | Pittsburgh |
IAH → PIT
2 hrs 45 mins |
Flexjet, Mesa Airlines, United Airlines3 |
| 3 | Raleigh/Durham |
IAH → RDU
2 hrs 40 mins |
Frontier Airlines, United Airlines2 |
| 3 | San José |
IAH → SJO
3 hrs 25 mins |
PWR, United Airlines2 |
| 3 | Columbus |
IAH → CMH
2 hrs 35 mins |
Mesa Airlines, Novajet, United Airlines3 |
| 3 | Fort Myers |
IAH → RSW
2 hrs 25 mins |
NetJets Aviation, United Airlines2 |
| 3 | Portland |
IAH → PDX
3 hrs 55 mins |
Alaska Airlines, United Airlines2 |
| 3 | Springfield |
IAH → SGF
1 hr 50 mins |
United Airlines1 |
| 3 | Aspen |
IAH → ASE
2 hrs 40 mins |
United Airlines1 |
| 3 | Saint Louis (STL) |
IAH → STL
2 hrs 10 mins |
United Airlines1 |
| 3 | Santa Ana |
IAH → SNA
3 hrs 15 mins |
United Airlines1 |
| 3 | Silao |
IAH → BJX
2 hrs 30 mins |
United Airlines, VivaAerobus2 |
| 3 | Tocumen |
IAH → PTY
4 hrs 10 mins |
United Airlines1 |
| 3 | San Juan |
IAH → SJU
4 hrs |
United Airlines1 |
| 3 | Savannah |
IAH → SAV
2 hrs 20 mins |
Mesa Airlines, United Airlines2 |
| 3 | Cleveland |
IAH → CLE
2 hrs 50 mins |
Flexjet, Mesa Airlines, United Airlines3 |
| 3 | Colorado Springs |
IAH → COS
2 hrs 25 mins |
Mesa Airlines, United Airlines2 |
| 3 | Gulfport |
IAH → GPT
1 hr 30 mins |
United Airlines1 |
| 3 | Laredo |
IAH → LRD
1 hr 30 mins |
United Airlines1 |
| 3 | Amarillo |
IAH → AMA
2 hrs |
United Airlines1 |
| 3 | Calgary |
IAH → YYC
3 hrs 55 mins |
United Airlines, WestJet2 |
| 3 | Panama City Beach |
IAH → ECP
1 hr 55 mins |
United Airlines1 |
| 3 | Albuquerque |
IAH → ABQ
2 hrs 20 mins |
Mesa Airlines, United Airlines2 |
| 2 | Jacksonville |
IAH → JAX
2 hrs 15 mins |
Mesa Airlines, United Airlines2 |
| 2 | Louisville |
IAH → SDF
2 hrs 20 mins |
Mesa Airlines, United Airlines2 |
| 2 | Bogotá |
IAH → BOG
4 hrs 50 mins |
United Airlines1 |
| 2 | Buenos Aires |
IAH → EZE
9 hrs 20 mins |
United Airlines1 |
| 2 | Liberia |
IAH → LIR
3 hrs 10 mins |
United Airlines1 |
| 2 | San Luis Potosí |
IAH → SLP
2 hrs 5 mins |
United Airlines, Volaris2 |
| 2 | Des Moines |
IAH → DSM
2 hrs 30 mins |
United Airlines1 |
| 2 | Lake Charles |
IAH → LCH
55 mins |
United Airlines1 |
| 2 | Meridian |
IAH → MEI
1 hr 35 mins |
SkyWest Airlines, United Airlines2 |
| 2 | Ontario |
IAH → ONT
3 hrs 15 mins |
ATI, Frontier Airlines, United Airlines3 |
| 2 | San José del Cabo |
IAH → SJD
2 hrs 45 mins |
United Airlines1 |
| 2 | Frankfurt-am-Main |
IAH → FRA
10 hrs 45 mins |
Lufthansa, United Airlines2 |
| 2 | Milwaukee |
IAH → MKE
2 hrs 30 mins |
Mesa Airlines, United Airlines2 |
| 2 | New York (JFK) |
IAH → JFK
3 hrs 10 mins |
Delta Air Lines1 |
| 2 | Tucson |
IAH → TUS
2 hrs 35 mins |
United Airlines1 |
| 2 | Aguascalientes |
IAH → AGU
2 hrs 35 mins |
United Airlines1 |
| 2 | Amsterdam |
IAH → AMS
10 hrs 5 mins |
KLM, United Airlines2 |
| 2 | Belize City |
IAH → BZE
2 hrs 45 mins |
United Airlines1 |
| 2 | Charleston |
IAH → CHS
2 hrs 25 mins |
Mesa Airlines, United Airlines2 |
| 2 | Greenville |
IAH → GSP
2 hrs 20 mins |
Mesa Airlines, United Airlines2 |
| 2 | Istanbul |
IAH → IST
11 hrs 5 mins |
Turkish Airlines1 |
| 2 | Managua |
IAH → MGA
3 hrs |
United Airlines1 |
| 2 | Richmond |
IAH → RIC
2 hrs 50 mins |
Mesa Airlines, United Airlines2 |
| 2 | Tokyo (NRT) |
IAH → NRT
12 hrs 15 mins |
United Airlines, ZIPAIR Tokyo2 |
| 2 | Victoria |
IAH → VCT
45 mins |
SkyWest Airlines, United Airlines2 |
| 2 | Hattiesburg/Laurel |
IAH → PIB
1 hr 25 mins |
United Airlines1 |
| 2 | La Mesa |
IAH → SAP
2 hrs 40 mins |
GlobalX Airlines, Spirit Airlines, United Airlines3 |
| 2 | Puerto Vallarta |
IAH → PVR
2 hrs 25 mins |
United Airlines1 |
| 2 | West Palm Beach |
IAH → PBI
2 hrs 55 mins |
United Airlines1 |
| 2 | Comayagua |
IAH → XPL
2 hrs 50 mins |
Spirit Airlines, United Airlines2 |
| 2 | Morelia |
IAH → MLM
2 hrs 10 mins |
United Airlines, Volaris2 |
| 1 | Oaxaca City |
IAH → OAX
3 hrs |
United Airlines1 |
| 1 | Sacramento |
IAH → SMF
3 hrs 40 mins |
United Airlines1 |
| 1 | Salina |
IAH → SLN
2 hrs 5 mins |
SkyWest Airlines, United Airlines2 |
| 1 | Taipei |
IAH → TPE
14 hrs 55 mins |
EVA Air1 |
| 1 | Doha |
IAH → DOH
13 hrs 40 mins |
Qatar Airways1 |
| 1 | Honolulu |
IAH → HNL
8 hrs 5 mins |
Atlas Air, United Airlines2 |
| 1 | Lima |
IAH → LIM
5 hrs 50 mins |
National Airlines, United Airlines2 |
| 1 | Rio de Janeiro |
IAH → GIG
10 hrs 5 mins |
United Airlines1 |
| 1 | Sydney |
IAH → SYD
15 hrs 45 mins |
United Airlines1 |
| 1 | Tokyo (HND) |
IAH → HND
12 hrs 40 mins |
ANA1 |
| 1 | Dubai |
IAH → DXB
15 hrs 15 mins |
Emirates1 |
| 1 | Eagle |
IAH → EGE
2 hrs 45 mins |
United Airlines1 |
| 1 | Edmonton |
IAH → YEG
4 hrs 10 mins |
United Airlines1 |
| 1 | Grand Rapids |
IAH → GRR
2 hrs 40 mins |
Mesa Airlines, United Airlines2 |
| 1 | Hobbs |
IAH → HOB
1 hr 40 mins |
United Airlines1 |
| 1 | Mérida |
IAH → MID
2 hrs 5 mins |
United Airlines1 |
| 1 | Montreal |
IAH → YUL
3 hrs 30 mins |
Air Canada1 |
| 1 | Montrose |
IAH → MTJ
2 hrs 35 mins |
United Airlines1 |
| 1 | Norfolk |
IAH → ORF
2 hrs 50 mins |
United Airlines1 |
| 1 | Quito |
IAH → UIO
4 hrs 35 mins |
United Airlines1 |
| 1 | Rionegro |
IAH → MDE
4 hrs 30 mins |
United Airlines1 |
| 1 | Santiago |
IAH → SCL
8 hrs 30 mins |
United Airlines1 |
| 1 | São Paulo |
IAH → GRU
8 hrs 55 mins |
United Airlines1 |
| 1 | Tampico |
IAH → TAM
1 hr 45 mins |
National Airlines, United Airlines2 |
| 1 | Vancouver |
IAH → YVR
4 hrs 20 mins |
Air Canada1 |
| 1 | Chicago Rockford |
IAH → RFD
2 hrs 40 mins |
ATI1 |
| 1 | Gunnison |
IAH → GUC
2 hrs 30 mins |
United Airlines1 |
| 1 | Hayden |
IAH → HDN
2 hrs 35 mins |
Mesa Airlines, United Airlines2 |
| 1 | Ixtapa |
IAH → ZIH
2 hrs 55 mins |
United Airlines1 |
| 1 | Lakeland |
IAH → LAL
2 hrs 30 mins |
ATI1 |
| 1 | Puebla City |
IAH → PBC
2 hrs 5 mins |
United Airlines1 |
| 1 | Cozumel |
IAH → CZM
2 hrs 15 mins |
United Airlines1 |
| 1 | Veracruz |
IAH → VER
2 hrs 15 mins |
United Airlines1 |
| 6/week | Auckland |
IAH → AKL
12 hrs 40 mins |
Air New Zealand1 |
| 6/week | Palm Springs |
IAH → PSP
3 hrs 15 mins |
United Airlines1 |
| 6/week | Paris |
IAH → CDG
9 hrs 35 mins |
Air France1 |
| 6/week | Port of Spain |
IAH → POS
4 hrs 55 mins |
United Airlines1 |
| 6/week | Roatan Island |
IAH → RTB
2 hrs 35 mins |
United Airlines1 |
| 5/week | Georgetown |
IAH → GEO
5 hrs 50 mins |
Ukraine Air Alliance, United Airlines2 |
| 4/week | Allentown |
IAH → ABE
3 hrs 15 mins |
ATI1 |
| 3/week | Houston |
IAH → HOU
20 mins |
KPO, NetJets Aviation2 |
| 3/week | Minot |
IAH → MOT
2 hrs 55 mins |
CommutAir1 |
| 3/week | Puerto Escondido |
IAH → PXM
2 hrs 40 mins |
United Airlines1 |
| 3/week | Saltillo |
IAH → SLW
1 hr 55 mins |
Aerolineas Ejecutivas, CommutAir2 |
| 3/week | San Bernardino |
IAH → SBD
3 hrs 10 mins |
Alaska Airlines, ATI2 |
| 3/week | Santa Fe |
IAH → SAF
2 hrs 10 mins |
Flexjet, NetJets Aviation2 |
| 2/week | Acapulco |
IAH → ACA
2 hrs 40 mins |
United Airlines1 |
| 2/week | Bozeman |
IAH → BZN
3 hrs 5 mins |
Mesa Airlines, United Airlines2 |
| 2/week | Carlsbad (CNM) |
IAH → CNM
2 hrs |
N11 |
| 2/week | Dallas |
IAH → DAL
1 hr 30 mins |
NetJets Aviation1 |
| 2/week | Dayton |
IAH → DAY
2 hrs 30 mins |
Solarius Aviation1 |
| 2/week | Jebel Ali |
IAH → DWC
16 hrs 5 mins |
Emirates1 |
| 2/week | Saint Louis (SUS) |
IAH → SUS
2 hrs 10 mins |
ARINC, JRE2 |
| 2/week | Sarasota/Bradenton |
IAH → SRQ
2 hrs 20 mins |
NetJets Aviation1 |
| 2/week | Toluca |
IAH → TLC
2 hrs 30 mins |
ACW, Aerolineas Ejecutivas2 |
| 2/week | Tyler |
IAH → TYR
1 hr |
WUP1 |
| 1/week | Abilene |
IAH → ABI
1 hr 25 mins |
NetJets Aviation1 |
| 1/week | Anchorage |
IAH → ANC
6 hrs 30 mins |
Cathay Pacific1 |
| 1/week | Baku |
IAH → GYD
11 hrs 5 mins |
Silk Way West1 |
| 1/week | Carlsbad (CLD) |
IAH → CLD
3 hrs 20 mins |
Solarius Aviation1 |
| 1/week | St Thomas Island |
IAH → STT
4 hrs 10 mins |
United Airlines1 |
| 1/week | Lewis University |
IAH → LOT
2 hrs 25 mins |
JRE1 |
| 1/week | Fort Hood/Killeen |
IAH → GRK
1 hr 15 mins |
Atlas Air1 |
| 1/week | Fort Worth |
IAH → AFW
1 hr 30 mins |
ATI1 |
| 1/week | Gainesville |
IAH → GNV
2 hrs 35 mins |
United Airlines1 |
| 1/week | Hahn |
IAH → HHN
9 hrs 15 mins |
Silk Way West1 |
| 1/week | Hayward |
IAH → HWD
4 hrs 5 mins |
CTP1 |
| 1/week | Houma |
IAH → HUM
1 hr 20 mins |
SVL1 |
| 1/week | Kralendijk |
IAH → BON
4 hrs 40 mins |
United Airlines1 |
| 1/week | Liège |
IAH → LGG
8 hrs 45 mins |
CHG1 |
| 1/week | Manzanillo |
IAH → ZLO
2 hrs 45 mins |
United Airlines1 |
| 1/week | Mazatlán |
IAH → MZT
2 hrs 20 mins |
United Airlines1 |
| 1/week | Montego Bay |
IAH → MBJ
3 hrs 5 mins |
United Airlines1 |
| 1/week | Nassau |
IAH → NAS
2 hrs 50 mins |
United Airlines1 |
| 1/week | Oranjestad |
IAH → AUA
4 hrs |
United Airlines1 |
| 1/week | Orlando (SFB) |
IAH → SFB
2 hrs 30 mins |
Flexjet1 |
| 1/week | Punta Cana |
IAH → PUJ
4 hrs |
United Airlines1 |
| 1/week | Rochester |
IAH → RST
2 hrs 40 mins |
Flexjet1 |
| 1/week | Snyder |
IAH → SNK
1 hr 35 mins |
PWR1 |
| 1/week | Stuart |
IAH → SUA
2 hrs 45 mins |
Executive Jet Management1 |
| 1/week | Tepic |
IAH → TPQ
2 hrs 20 mins |
United Airlines1 |
| 1/week | Teterboro |
IAH → TEB
3 hrs 20 mins |
QQE1 |
| 1/week | Waco |
IAH → ACT
1 hr |
CommutAir1 |
| 1/week | Washington (IAD) |
IAH → IAD
3 hrs |
National Airlines1 |
Airlines
Houston International Airport is served by 55 airlines, with United Airlines in the lead at 45% of routes. The top three carriers together cover 60% of routes. 30 carriers operate only one route each. A total of 30 airlines operate international routes, compared with 33 serving domestic routes. United Airlines is operating the longest nonstop flight, connecting to Sydney with a flight time of 15 hrs 45 mins.
- United Airlines156 routes
- Mesa Airlines32 routes
- Frontier Airlines18 routes
- Spirit Airlines16 routes
- Delta Air Lines9 routes
- ATI9 routes
- American Airlines8 routes
- Volaris7 routes
- NetJets Aviation7 routes
- Flexjet6 routes
- VivaAerobus5 routes
- SkyWest Airlines4 routes
- PWR4 routes
- Alaska Airlines4 routes
- Envoy Air3 routes
- JRE3 routes
- Atlas Air3 routes
- GlobalX Airlines3 routes
- Air Canada3 routes
- National Airlines3 routes
- CommutAir3 routes
- Emirates2 routes
- Aerolineas Ejecutivas2 routes
- Solarius Aviation2 routes
- Silk Way West2 routes
- Aeromexico1 route
- Avianca1 route
- Vuela El Salvador1 route
- TCA1 route
- JetBlue Airways1 route
- Libyan Airlines1 route
- British Airways1 route
- Novajet1 route
- WestJet1 route
- Lufthansa1 route
- KLM1 route
- Turkish Airlines1 route
- ZIPAIR Tokyo1 route
- EVA Air1 route
- Qatar Airways1 route
- ANA1 route
- Air New Zealand1 route
- Air France1 route
- Ukraine Air Alliance1 route
- KPO1 route
- N11 route
- ARINC1 route
- ACW1 route
- WUP1 route
- Cathay Pacific1 route
- CTP1 route
- SVL1 route
- CHG1 route
- Executive Jet Management1 route
- QQE1 route
Houston International Airport provides direct service to 38 countries across six continents. The route network is 64% domestic and 36% international, with Mexico City, Mexico serving as the primary international destination.
- United States481/day
- Mexico55/day
- Canada10/day
- El Salvador6/day
- Costa Rica6/day
- Honduras4/day
- Guatemala4/day
- United Kingdom4/day
- Colombia3/day
- Japan3/day
- Panama3/day
- Puerto Rico3/day
- Brazil2/day
- Argentina2/day
- Germany2/day
- Netherlands2/day
- Belize2/day
- Turkey2/day
- Nicaragua2/day
- Taiwan1/day
- United Arab Emirates1/day
- Qatar1/day
- Peru1/day
- Australia1/day
- Ecuador1/day
- Chile1/day
- New Zealand6/week
- France6/week
- Trinidad & Tobago6/week
- Guyana5/week
- Azerbaijan1/week
- U.S. Virgin Islands1/week
- Caribbean Netherlands1/week
- Belgium1/week
- Jamaica1/week
- Bahamas1/week
- Aruba1/week
- Dominican Republic1/week
Global Rankings of Houston Airport (IAH)
This snapshot shows how Houston Airport (IAH) ranks globally across multiple operational and network dimensions. Rankings reflect relative position worldwide across destination breadth, flight volume, scheduling density, and long-haul reach.
Destinations
Measures how broadly the airport connects distinct endpoints across its route network.
- #20 – Total Destination Count (Network breadth)
- #26 – Domestic Destination Count
- #86 – International Destination Count
Flights & Scheduling
Reflects flight volume and how intensively runway infrastructure is scheduled.
- #22 – Total Flight Count (Operational intensity)
- #17 – Domestic Flight Count
- #81 – International Flight Count
- #121 – Flights per Runway (Scheduling density)
Distance & Reach
Highlights long-haul connectivity and how distance is distributed across flights and runways.
- #33 – Total Distance Flown (Global reach)
- #214 – Distance per Flight (Route profile)
- #96 – Distance per Runway (Long-haul leverage)
10 Runways at Houston Airport (IAH)
| Name | Length | Width | Surface |
|---|---|---|---|
| 15L | 12,037 ft · 3,669 m | 151 ft · 46 m | Concrete |
| 33R | 12,037 ft · 3,669 m | 151 ft · 46 m | Concrete |
| 15R | 10,030 ft · 3,057 m | 151 ft · 46 m | Concrete |
| 33L | 10,030 ft · 3,057 m | 151 ft · 46 m | Concrete |
| 09 | 9,990 ft · 3,045 m | 151 ft · 46 m | Asphalt |
| 27 | 9,990 ft · 3,045 m | 151 ft · 46 m | Asphalt |
| 08R | 9,393 ft · 2,863 m | 151 ft · 46 m | Concrete |
| 26L | 9,393 ft · 2,863 m | 151 ft · 46 m | Concrete |
| 08L | 8,990 ft · 2,740 m | 151 ft · 46 m | Concrete |
| 26R | 8,990 ft · 2,740 m | 151 ft · 46 m | Concrete |
The runways at this airport are long enough to accomodate all aircraft.