$89 Cheap United flights from Raleigh to Houston (RDU to IAH)

It’s wise to find out about any quarantine requirements and travel advice reports in place in your destination. Make sure you visit the Covid-19 Travel Advisor for up-to-date info on catching a flight to IAH from RDU.

If you’re flying with United Airlines from Raleigh–Durham Airport, you’ll generally be boarding from terminal 2. If you’re heading to IAH from here, you’re most likely to be pulling in at terminal C.

Direct flights are available with United Airlines, which means you’ll be able to travel from Raleigh - Durham Intl. Airport (RDU) to George Bush Intercontinental Airport (IAH) the easy way. Those one-of-a-kind vacation experiences you desire are a trouble-free flight away.

Have a power nap and begin your getaway feeling relaxed. You’ll have ample time to do so when traveling with United Airlines between Raleigh–Durham Airport and George Bush Intercontinental Airport (IAH), with the average flight lasting 4 hours and 31 minutes.

United Airlines normally uses the Airbus A320 or the Boeing 737 MAX 8 on the flight path between Raleigh–Durham Airport and IAH.

When jetting from RDU to IAH, you’ll find about 4 United Airlines daily flights to select from.

For more info about changing your flight to IAH, please visit our Customer Service Portal.

This just in! Airfares offered on Thursdays tend to be the cheapest, according to flight demand on Travelocity in 2021. Tuesday and Wednesday prices are also good, but you may want to prepare your budget if booking during the weekend, as data shows that is when prices are generally at their highest.

Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2021, flights departing on a Monday were generally the cheapest of the week, whereas you may pay a premium for weekend flights when demand is usually high. On average, tickets were most expensive for Saturday departures, so if you need to fly out on a weekend, you might look for deals ahead of time.

Trying to figure out how early you should book your flight? It’s possible to start comparing international airfares on Travelocity up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 0-2 weeks prior to their travel dates.*According to flight demand on Travelocity.com from January to December 2021. Savings are subject to change based on departure location, date and destination.