Direct flights from Houston (IAH)

George Bush Intercontinental Airport (IAH) has active nonstop service to 197 destinations, flown by 26 airlines, led by United Airlines, Frontier Airlines, and American Airlines. The busiest nonstops from Houston go to McAllen, Denver, and Dallas. 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.

Updated .

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197
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. Its nonstop network reaches 197 destinations across 41 countries.

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 or award seats by date on the IAH routes 2LNR tracks, checked against live inventory so you know what's open before you book.

Set an alert

Premium inventory turns over fast. Watch a tracked Houston route on Pro 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: 197 nonstop destinations with active service at George Bush Intercontinental Airport. Each route links to its own page, with confirmed upgrade or award space by date where 2LNR tracks the carrier.

Explore IAH routes on the interactive map →

Nonstop flights to Houston (IAH)

194 airports have nonstops to George Bush Intercontinental Airport in 2LNR's schedule data. Here they are, with the airlines that fly each route.

Airlines that fly out of Houston (IAH)

The carriers with nonstop service from George Bush Intercontinental Airport, ordered by how many destinations each one reaches. Each links to that airline's full route map.

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.

United States flights by airport

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 197 destinations in 2LNR's schedule data. The busiest markets from IAH are McAllen, Denver, and Dallas. 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, 197 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.
Where can you fly nonstop from Houston (IAH)?
2LNR's schedule data shows nonstops from Houston (IAH) to 197 destinations. The busiest go to McAllen, Denver, Dallas, Atlanta, Chicago, Corpus Christi, New York, Miami, Los Angeles, and San Francisco. This page lists all 197, with the airlines that fly each one.

Never miss IAH upgrade or award space

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

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