Raleigh/Durham to Houston (RDU–IAH) — Airlines, Schedules & Connections
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No nonstop flights on this route. connecting options below.
RDU–IAH is served by 2 airlines with nonstop service. United Airlines and Frontier lead the route. The flight covers 1,041 miles in approximately 3h 9m. Beyond nonstop, 120 hubs offer 1-stop connections.
Airline Landscape
| Airline | Freq/wk | Aircraft | Duration | Dep OTP | Alliance | Codeshares |
|---|---|---|---|---|---|---|
| UA United Airlines Also: NH, NZ | 27 | 320, 7M8, E75L, E7W | 3h09-3h26 | Star Alliance | NH, NZ | |
| F9 Frontier | 7 | A21N | 3h12 | – | – |
Weekly Schedule Pattern
Connection Landscape
Other ways to reach Houston from Raleigh/Durham
| Metric | RDU→IAH | FAY→IAH | GSO→IAH |
|---|---|---|---|
| Distance from RDU | – | 62 mi | 66 mi |
| Nonstop airlines | 2 | 1 | 1 |
| Weekly flights | 48 | – | – |
| Flight time | 3h 9m | 2h 35m | 2h 50m |
| Departure OTP | 88% | – | – |
Travel Essentials
RDU: EDT · IAH: CDT
When it's 6:00 PM in Raleigh/Durham, it's 5:00 PM in Houston.
No rail connection exists. GoTriangle Route 100 (RDU Express) runs from the Durham Station Transportation Center and downtown Raleigh to the airport for $2.25; takes 35–50 minutes but service is limited in the evenings and does not run all night.Ride-shares (Uber/Lyft) from downtown Raleigh: $20–30, 20–25 minutes. From Durham: $18–25, 15–20 minutes. Taxis: $30–40. Long-term parking from $7/day in Economy lots with shuttle service. I-40 provides direct access to both Raleigh and Durham.
No direct rail from IAH. The METRO bus 102 (IAH Express) runs to downtown Houston's transit center (60–90 min, $1.25). Taxis to downtown Houston cost $50–70. Ride-hails pick up at the designated Rideshare zones outside baggage claim on the lower level.IAH has five terminals (A–E) connected by an underground tunnel with trams. Terminal D handles international arrivals. Rental car agencies are in a consolidated facility adjacent to Terminal C; a free IAH Connector bus runs between terminals and the rental car center. The Galleria / Uptown area costs $35–50 by ride-hail.
Humid subtropical climate. Hot, humid, and wet for much of the year. Summers are brutal (33–38°C) with high humidity and near-daily afternoon thunderstorms. Severe storms with hail and high winds regularly cause ground stops from April through September. Houston's flooding risk is significant. Heavy rain events, including tropical system remnants, have flooded airport roads, cutting off surface access even when the airport itself remains operational.
Winters are mild (5–18°C) with occasional ice storms. These are rare but highly disruptive when they occur. Hurricane season (June–November) requires monitoring for Gulf storms. October through March has the best flying weather.
RDU–IAH Quick Facts
Frequently Asked Questions
Flights from RDU to IAH
Raleigh-Durham International Airport (RDU) and George Bush Intercontinental Airport (IAH) are connected by nonstop service from Frontier and United Airlines. With 48 weekly departures, this is a heavily served route.
RDU to IAH Flight Duration and Schedule
Nonstop flight time from RDU to IAH ranges from 3 hours 9 minutes to 3 hours 26 minutes. The route covers a distance of 1,041 miles (1,675 km). There are approximately 48 weekly flights outbound and 45 return, totaling 93 flights per week in both directions.
Connecting Options and Alternatives
120 one-stop connections are available, with the fastest taking approximately 4 hours via ECP. Two-stop connections are also available via intermediate hubs. Nearby alternative airports include Fayetteville (FAY) and Greensboro (GSO).