Direct flights from Houston (IAH)

George Bush Intercontinental Airport (IAH) has active nonstop service to 196 destinations, flown by 26 airlines, led by United Airlines, Frontier Airlines, and American Airlines. Premium seats move quickly on the busiest corridors, including Dallas, Atlanta, and McAllen, where upgrade and award space can open and close within hours. 2LNR tracks confirmed upgrade and award space on the IAH routes flown by American Airlines, Delta Air Lines, and Alaska Airlines, and award seats on JetBlue Airways, Air France, and Emirates, so you know which Houston flights have space before you book.

Route data refreshed . Routes and carriers reflect the schedule data behind 2LNR's route map.

196
Nonstop destinations
26
Airlines serving IAH
Free
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About George Bush Intercontinental Airport (IAH)

George Bush Intercontinental Airport (IAH) is the airport serving Houston, Texas, United States. Its ICAO code is KIAH. Departure and arrival times at IAH are local to the America/Chicago time zone. It has 196 nonstop destinations in 2LNR's schedule data.

Confirmed upgrade & award space on Houston routes

2LNR tracks confirmed upgrade and award space on American Airlines, Delta Air Lines, and Alaska Airlines, segment by segment and date by date. Pick any Houston destination below to open a calendar of departures, the next 14 days free on every product and the full horizon on Pro.

See real availability

Confirmed upgrade and award seats on each IAH route, checked against live inventory so you know what is open before you book.

Set an alert

Premium inventory turns over fast. Watch a Houston route and 2LNR notifies you when space appears.

Plan on the map

Explore every IAH nonstop on the interactive route map, with connections and route statistics.

All nonstop destinations from Houston (IAH)

These are the city pairs behind flights to and from Houston: 196 nonstop destinations with active service at George Bush Intercontinental Airport. Each route links to its confirmed upgrade and award availability.

Alternative airports near Houston (IAH)

Nearby airports with nonstop service of their own, closest first. Distances are great-circle between the two airports' coordinates, not driving time, so check the ground connection before you treat one as a substitute.

Frequently asked questions about Houston (IAH)

How many nonstop destinations does George Bush Intercontinental Airport (IAH) serve?
George Bush Intercontinental Airport has active nonstop service to 196 destinations in 2LNR's schedule data. The busiest markets from IAH are Dallas, Atlanta, and McAllen. The full list, with who flies each route and, where 2LNR tracks the carrier, upgrade and award space by date, is on this page.
Which airlines fly out of Houston (IAH)?
The carriers with nonstop service from George Bush Intercontinental Airport are listed in full on this page, each linked to its own route map. United Airlines, Frontier Airlines, and American Airlines run the most routes from Houston, in that order. In 2LNR's schedule data that is 26 airlines in total.
How many airlines fly out of IAH?
2LNR's schedule data currently shows 26 airlines with at least one nonstop route from Houston (IAH). That figure counts the carrier operating the flight rather than every carrier that sells a seat on it, so a codeshare marketed by a partner is not counted twice, and it moves with the season.
How do I check upgrade or award availability from IAH?
Pick any destination on this page, such as Dallas, to open a calendar of IAH departures with confirmed upgrade and award space on American Airlines, Delta Air Lines, and Alaska Airlines by date, the next 14 days free on every product and the full horizon on Pro. On Pro you can also set an alert so 2LNR notifies you when space opens.
Does 2LNR track flights from IAH?
Yes. Every nonstop route from George Bush Intercontinental Airport in 2LNR's schedule data is listed, 196 destinations in total, and on the routes flown by American Airlines, Delta Air Lines, and Alaska Airlines what is shown is confirmed availability rather than a forecast, the next 14 days free on every product and the full horizon on Pro.

Never miss IAH upgrade or award space

See what is open by date on these routes, the next 14 days free on every product and the full horizon on Pro.

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