An airport terminal with signs for international arrivals, departures, and parking.

Cheap Flights from Raleigh (RDU) to Houston (IAH)

View AU$199 flight on Wed, 9 Sept 2026Opens in a new window

Popular airlines from Raleigh-Durham International Airport (RDU) to George Bush Intercontinental Airport (IAH)

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 35% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap Flights from Raleigh (RDU) to Houston (IAH)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Wed, 9 Sept - Wed, 16 Sept
RDU
Raleigh
IAH
Houston
AU$397 Return, found 2 days ago
AU$397
Return
found 2 days ago
Select American Airlines flight, departing Wed, 9 Sept from Raleigh to Houston, returning Wed, 16 Sept, priced at AU$397 found 2 days ago
Delta
Wed, 9 Sept - Wed, 16 Sept
RDU
Raleigh
IAH
Houston
AU$397 Return, found 2 days ago
AU$397
Return
found 2 days ago
Select Delta flight, departing Wed, 9 Sept from Raleigh to Houston, returning Wed, 16 Sept, priced at AU$397 found 2 days ago
Delta
Wed, 9 Sept - Wed, 16 Sept
RDU
Raleigh
IAH
Houston
AU$398 Return, found 2 days ago
AU$398
Return
found 2 days ago
Select Delta flight, departing Wed, 9 Sept from Raleigh to Houston, returning Wed, 16 Sept, priced at AU$398 found 2 days ago
Delta
Tue, 29 Sept - Thu, 1 Oct
RDU
Raleigh
IAH
Houston
AU$410 Return, found 6 days ago
AU$410
Return
found 6 days ago
Select Delta flight, departing Tue, 29 Sept from Raleigh to Houston, returning Thu, 1 Oct, priced at AU$410 found 6 days ago
Delta
Tue, 8 Sept - Tue, 15 Sept
RDU
Raleigh
IAH
Houston
AU$412 Return, found 4 days ago
AU$412
Return
found 4 days ago
Select Delta flight, departing Tue, 8 Sept from Raleigh to Houston, returning Tue, 15 Sept, priced at AU$412 found 4 days ago
United
Wed, 9 Sept - Wed, 16 Sept
RDU
Raleigh
IAH
Houston
AU$448 Return, found 2 days ago
AU$448
Return
found 2 days ago
Select United flight, departing Wed, 9 Sept from Raleigh to Houston, returning Wed, 16 Sept, priced at AU$448 found 2 days ago
United
Tue, 29 Sept - Thu, 1 Oct
RDU
Raleigh
IAH
Houston
AU$453 Return, found 6 days ago
AU$453
Return
found 6 days ago
Select United flight, departing Tue, 29 Sept from Raleigh to Houston, returning Thu, 1 Oct, priced at AU$453 found 6 days ago
Delta
Tue, 8 Sept - Tue, 15 Sept
RDU
Raleigh
IAH
Houston
AU$455 Return, found 4 days ago
AU$455
Return
found 4 days ago
Select Delta flight, departing Tue, 8 Sept from Raleigh to Houston, returning Tue, 15 Sept, priced at AU$455 found 4 days ago
American Airlines
Wed, 9 Sept - Wed, 16 Sept
RDU
Raleigh
IAH
Houston
AU$456 Return, found 2 days ago
AU$456
Return
found 2 days ago
Select American Airlines flight, departing Wed, 9 Sept from Raleigh to Houston, returning Wed, 16 Sept, priced at AU$456 found 2 days ago
American Airlines
Sat, 5 Sept - Tue, 8 Sept
RDU
Raleigh
IAH
Houston
AU$462 Return, found 5 days ago
AU$462
Return
found 5 days ago
Select American Airlines flight, departing Sat, 5 Sept from Raleigh to Houston, returning Tue, 8 Sept, priced at AU$462 found 5 days ago

Find the cheapest month to fly from Raleigh (RDU) to Houston (IAH)

February is typically the cheapest month to fly

From AU$84 - AU$236 per traveller.

Frequently asked questions

How much does a flight from Raleigh, NC (RDU-Raleigh - Durham Intl.) to Houston, TX (IAH-George Bush Intercontinental) cost?
You can find one-way and return flights from RDU to IAH with Expedia. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see our cheapest fares first, and use the Price Tracking tool to receive alerts when RDU to IAH ticket fares go up or down.
What is the cheapest month to fly from Raleigh, NC (RDU-Raleigh - Durham Intl.) to Houston, TX (IAH-George Bush Intercontinental)?
The cheapest months to fly from RDU to IAH are typically during off-peak season when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you are able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Raleigh, NC (RDU-Raleigh - Durham Intl.) to Houston, TX (IAH-George Bush Intercontinental)?
There are 2 airlines offering direct flights from Raleigh - Durham Intl. (RDU) to George Bush Intercontinental (IAH). Here are the carriers:
  • United operates 25 direct flights from Raleigh - Durham Intl. (RDU) to George Bush Intercontinental (IAH) every week.
  • Frontier Airlines operates 7 direct flights from Raleigh - Durham Intl. (RDU) to George Bush Intercontinental (IAH) every week.
How do I find cheap flights from Raleigh, NC (RDU) to Houston, TX (IAH)?
To find a cheap flight from Raleigh, NC (RDU) to Houston, TX (IAH), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Raleigh, NC (RDU-Raleigh - Durham Intl.) to Houston, TX (IAH-George Bush Intercontinental)?
The best airline to fly with from Raleigh, NC (RDU-Raleigh - Durham Intl.) to Houston, TX (IAH-George Bush Intercontinental) will differ from traveler to traveler. If you like to fly early, United offers early morning flights. If price is the most important factor, Frontier Airlines typically offers the lowest fares. American Airlines offers the most daily flights from Raleigh, NC (RDU-Raleigh - Durham Intl.) to Houston, TX (IAH-George Bush Intercontinental), which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Raleigh, NC (RDU-Raleigh - Durham Intl.) to Houston, TX (IAH-George Bush Intercontinental)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Raleigh, NC (RDU-Raleigh - Durham Intl.) to Houston, TX (IAH-George Bush Intercontinental)?
You'll find approximately 4 nonstop flights per day from Raleigh - Durham Intl. (RDU) to George Bush Intercontinental (IAH). For even more choices, look at flights that include layovers, as there are around 95 connecting flights per day. Some common connection points include Hartsfield-Jackson Atlanta Intl., O'Hare Intl., and Dallas-Fort Worth Intl.
What is the earliest flight from Raleigh, NC (RDU-Raleigh - Durham Intl.) to Houston, TX (IAH-George Bush Intercontinental)?
The earliest flight from Raleigh - Durham Intl. (RDU) to George Bush Intercontinental (IAH) typically departs around 5:00 AM. This flight is operated by American Airlines. This is a seasonal service, active in May, June, July, and August. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Raleigh, NC (RDU-Raleigh - Durham Intl.) to Houston, TX (IAH-George Bush Intercontinental)?
You'll generally find the most flights from Raleigh - Durham Intl. (RDU) to George Bush Intercontinental (IAH) on a Thursday, with around 73 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include American Airlines, United, and Delta. Looking at the week, Thursday offers notably more flight options compared to other days, ensuring you have a good selection to choose from.
What are the most popular departure times for flights from Raleigh, NC (RDU-Raleigh - Durham Intl.) to Houston, TX (IAH-George Bush Intercontinental)?
The most popular departure times for flights from Raleigh - Durham Intl. (RDU) to George Bush Intercontinental (IAH) are in the morning, from 9am to 12pm. Many major carriers, including American Airlines, Frontier Airlines and Delta, offer flights during this window. Many travellers prefer these times as it allows for an early start to their travel day, often arriving at their destination by early afternoon.
How long does it take to fly from Raleigh, NC (RDU-Raleigh - Durham Intl.) to Houston, TX (IAH-George Bush Intercontinental)?
Flying from Raleigh - Durham Intl. (RDU) to George Bush Intercontinental (IAH) covers a distance of about 1,675 kilometers. A nonstop flight typically takes around 3 hours 18 minutes. If you opt for a one-stop flight, your travel time will be longer, usually around 6 hours 30 minutes. Flights with two or more stops generally take even longer, averaging about 9 hours 18 minutes. Keep in mind that actual flight times can vary due to factors like wind patterns and air traffic.
Can you fly business or first class from Raleigh, NC (RDU-Raleigh - Durham Intl.) to Houston, TX (IAH-George Bush Intercontinental)?
You can fly business class or first class between RDU and IAH. Airlines that offer business class service on this route include:
  • Frontier Airlines
  • Delta
First class cabins are available on:
  • Alaska Airlines
  • Spirit Airlines
  • Delta
  • United
  • American Airlines
How do I earn miles on a Raleigh, NC (RDU) to Houston, TX (IAH) flight with Expedia?
It's easy to earn miles on a Raleigh, NC (RDU) to Houston, TX (IAH) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Houston, TX (IAH) from Raleigh, NC (RDU)?
If you're planning to travel to Houston from Raleigh - Durham Intl. (RDU), you can fly directly into George Bush Intercontinental (IAH). Some flights may connect through major hubs like Seattle - Tacoma Intl. (SEA), LaGuardia (LGA), or Charlotte-Douglas Intl. (CLT) before reaching Houston. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Raleigh, NC (RDU) to Houston, TX (IAH) at the last minute?
Typically, booking a last minute flight from Raleigh, NC (RDU) to Houston, TX (IAH) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Raleigh, NC (RDU) to Houston, TX (IAH) flight and hotel package?
Securing a Raleigh, NC (RDU) to Houston, TX (IAH) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Raleigh, NC (RDU) to Houston, TX (IAH)?
If you booked your Raleigh, NC (RDU) to Houston, TX (IAH) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Raleigh - Durham Intl.
Destination airport
George Bush Intercontinental
Return price
AU$396
Distance
1665 km
Average flight time
2 hours 55 mins

Book with confidence

Your quick guide to flights from Raleigh to Houston

Pick up great flights from Raleigh to Houston

With Expedia, you have your pick of flights a day with 20 airlines covering flights from Raleigh to Houston. Whether you’re on a business trip, a family holiday or a luxury break, just enter your travel dates, hit search then check out your choice of flights. Select from return, one way or multi-city flights, and use the advance search tool if you want a direct or refundable flight. You can narrow your search to show you just your preferred cabin class and airline, too. It’s all easy. You can book direct flights from Raleigh to Houston that take around hours.

Find cheap flights from Raleigh to Houston

From the great flight deals with prices currently ranging from AU$397 to AU$462, you can choose to see the cheapest flights first. Generally, you can book the cheapest flights from Raleigh to Houston around 4 to 6 weeks in advance. If your travel dates are flexible, try to avoid weekends and peak seasons – when you are more likely to grab the lowest prices. Even last minute, there are some impressive deals. The cheapest time to fly to Houston is normally in September.

Reasons to book your flight from Raleigh to Houston with Expedia

Expedia makes it easy to find, book, and travel, with everything you need all in one place. When you enter your travel details, find fantastic deals just for you on flight tickets from Raleigh to Houston across all the main airline carriers, so you can save time, dollars, and hassle finding the perfect flight. If you think your plans could change, choose refundable flights so any changes won’t cost you more. Book your flight to Houston right now and, if you join Expedia Rewards, you earn points this time and every time you travel with Expedia.

Your quick guide to flights from Raleigh to Houston

Explore a world of travel with Expedia

*Available to Expedia members.