Cheap Flights from
Houston (Bush) (IAH)
We monitor every major airline and award program departing from Houston (Bush). No more generic alerts for DFW when you're flying out of IAH.
Recent Alerts from IAH
Houston Bush Intercontinental (IAH) is United Airlines' second-largest hub and America's top gateway to Latin America. With 50M+ annual passengers and 200+ destinations — including the most competitive Latin American routes of any Texas airport — IAH produces error fares regularly. United's complex pricing system creates windows several times per month, particularly on international corridors.
Typical vs. Error Fare Prices from Houston (Bush)
Historical ranges based on observed deals. Error fares close within 2–6 hours — subscribe to get notified instantly.
| Destination | Typical Price | Error Fare Range |
|---|---|---|
| Mexico City (MEX) | $180–$280 | $79–$129 |
| Cancún (CUN) | $200–$350 | $79–$149 |
| London (LHR) | $600–$900 | $250–$400 |
| Bogotá (BOG) | $300–$500 | $129–$199 |
Pro Tips for Finding Cheap Flights from Houston (Bush)
IAH is United's Latin America hub — Mexico City, Bogotá, Lima, and São Paulo routes see more error fare frequency here than at any other Texas airport.
United MileagePlus award redemptions from IAH to South America are often underpriced relative to cash value — worth pairing with error fare alerts.
For Europe deals, IAH competes with DFW — United's Polaris business class error fares to London and Frankfurt surface uniquely here.
Also watch HOU (Houston Hobby) for domestic Southwest deals — monitoring both Houston airports doubles your coverage.
Frequently Asked Questions — Cheap Flights from Houston (Bush)
What are the cheapest international flights from Houston (IAH)?
IAH's cheapest international routes are to Mexico (Cancún $79–149, Mexico City $79–129 during error fares) and Central/South America. As United's Latin America hub, IAH regularly sees pricing anomalies on Colombia, Peru, and Brazil routes — sometimes 50–70% below retail.
Is IAH or HOU better for cheap flights from Houston?
IAH offers far more international options as a United hub with 200+ destinations. HOU (Hobby) is primarily Southwest and better for cheap domestic routes. For international deals, watch IAH. For Southwest domestic deals to Texas cities and major US hubs, monitor HOU.
What airlines fly from Houston Bush Intercontinental (IAH)?
IAH is served by United (primary hub), American, Delta, Southwest, Spirit, Frontier, and 30+ international carriers including Lufthansa, British Airways, Air France, Aeromexico, LATAM, and Copa. The diversity of carriers creates genuine pricing competition on overlapping routes.
When is the cheapest time to fly from Houston (IAH)?
January, February, and September are typically the cheapest months from IAH. Avoid spring break (March), summer (June–August), and the Thanksgiving/Christmas holiday window. Houston Rodeo season (February–March) can also push domestic fares higher.