$44 Cheap Flights from Houston (IAH) to Las Vegas (LAS)

View $44 flight on Mon, Aug 11, 2025Opens in a new window

Popular airlines from George Bush Intercontinental Airport (IAH) to Harry Reid Intl. Airport (LAS)

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Cheap Flights from Houston to Las Vegas (IAH-LAS)

Prices were available within the past 7 days and start at $44 for one-way flights and $98 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Spirit Airlines
Mon, Aug 11 - Wed, Aug 20
IAH
Houston
LAS
Las Vegas
$98 Roundtrip, just found
$98
Roundtrip
just found
Select Spirit Airlines flight, departing Mon, Aug 11 from Houston to Las Vegas, returning Wed, Aug 20, priced at $98 just found
Spirit Airlines
Mon, Aug 11 - Thu, Aug 14
IAH
Houston
LAS
Las Vegas
$99 Roundtrip, just found
$99
Roundtrip
just found
Select Spirit Airlines flight, departing Mon, Aug 11 from Houston to Las Vegas, returning Thu, Aug 14, priced at $99 just found
Spirit Airlines
Mon, Aug 11 - Wed, Aug 20
IAH
Houston
LAS
Las Vegas
$103 Roundtrip, just found
$103
Roundtrip
just found
Select Spirit Airlines flight, departing Mon, Aug 11 from Houston to Las Vegas, returning Wed, Aug 20, priced at $103 just found
Spirit Airlines
Sat, Aug 16 - Mon, Sep 8
IAH
Houston
LAS
Las Vegas
$104 Roundtrip, found 3 days ago
$104
Roundtrip
found 3 days ago
Select Spirit Airlines flight, departing Sat, Aug 16 from Houston to Las Vegas, returning Mon, Sep 8, priced at $104 found 3 days ago
Spirit Airlines
Sun, Aug 10 - Fri, Aug 22
IAH
Houston
LAS
Las Vegas
$106 Roundtrip, found 2 hours ago
$106
Roundtrip
found 2 hours ago
Select Spirit Airlines flight, departing Sun, Aug 10 from Houston to Las Vegas, returning Fri, Aug 22, priced at $106 found 2 hours ago
Frontier Airlines
Mon, Aug 25 - Fri, Aug 29
IAH
Houston
LAS
Las Vegas
$107 Roundtrip, just found
$107
Roundtrip
just found
Select Frontier Airlines flight, departing Mon, Aug 25 from Houston to Las Vegas, returning Fri, Aug 29, priced at $107 just found
Spirit Airlines
Wed, Nov 5 - Mon, Nov 10
IAH
Houston
LAS
Las Vegas
$108 Roundtrip, just found
$108
Roundtrip
just found
Select Spirit Airlines flight, departing Wed, Nov 5 from Houston to Las Vegas, returning Mon, Nov 10, priced at $108 just found
United
Tue, Oct 28 - Wed, Oct 29
IAH
Houston
LAS
Las Vegas
$172 Roundtrip, found 4 hours ago
$172
Roundtrip
found 4 hours ago
Select United flight, departing Tue, Oct 28 from Houston to Las Vegas, returning Wed, Oct 29, priced at $172 found 4 hours ago
Hawaiian Airlines
Tue, Sep 16 - Tue, Sep 30
IAH
Houston
LAS
Las Vegas
$203 Roundtrip, found 11 hours ago
$203
Roundtrip
found 11 hours ago
Select Hawaiian Airlines flight, departing Tue, Sep 16 from Houston to Las Vegas, returning Tue, Sep 30, priced at $203 found 11 hours ago
Delta
Mon, Sep 15 - Tue, Sep 16
IAH
Houston
LAS
Las Vegas
$211 Roundtrip, just found
$211
Roundtrip
just found
Select Delta flight, departing Mon, Sep 15 from Houston to Las Vegas, returning Tue, Sep 16, priced at $211 just found

Find the cheapest month to fly from Houston (IAH) to Las Vegas (LAS)

September is typically the cheapest month to fly

From $48 - $124 per traveler.

Graph displaying average flight prices per month

Alternative airports near Las Vegas

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to McCarran Intl. LAS. Cheapest and Closest option available. Average driving time to city center is 6 minutes. Flights from $136
LAS
McCarran Intl.
CheapestClosest
Average driving time to city center6 min
Flights from $136
Flights from Houston (IAH) to Las Vegas (LAS)
Origin airport
George Bush Intercontinental
Destination airport
Harry Reid Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Hawaiian Airlines, Spirit Airlines, United
Roundtrip price
$97
Distance
1219 mi
Average flight time
1 hour 15 mins

Houston to Las Vegas Flights

The cheapest times to fly from Houston to Las Vegas

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Houston to Las Vegas are during the month of August. You can find some of the cheapest flights from Houston to Las Vegas with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Houston to Las Vegas

Sunday is one of the best days to book for cheap flights from Houston to Las Vegas: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Houston to Las Vegas

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Houston to Las Vegas in 2025. You can also book with separate airlines for your outbound and return journeys, from $44 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Houston to Las Vegas flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Houston to Las Vegas airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from George Bush Intercontinental Airport (IAH) to Harry Reid Intl. Airport (LAS) cost?
You can pick up cheap return tickets starting from $61 from George Bush Intercontinental Airport (IAH) to Harry Reid Intl. Airport (LAS). This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Spirit Airlines and Frontier Airlines flight leaving IAH on August 13 2025 and touching down at LAS. The price was last updated on July 23 2025 and has not changed since.
What is the cheapest month to fly from IAH to LAS?
The cheapest flights from IAH to LAS are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from George Bush Intercontinental Airport (IAH) to Harry Reid Intl. Airport (LAS)?
Avoid the layovers and fly nonstop to Harry Reid Intl. Airport (LAS) from George Bush Intercontinental Airport (IAH) with 3 carriers, including:

  • United Airlines
  • Spirit Airlines
  • Frontier Airlines

What is the cheapest airline that flies from IAH to LAS?
With tickets starting at $29 for a one-way flight from IAH to LAS, Frontier Airlines is currently the cheapest airline flying this route. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from IAH on August 16 2025. Prices were last updated on July 23 2025 and have not changed since.
How many flights per day from George Bush Intercontinental Airport (IAH) to Harry Reid Intl. Airport (LAS)?
With, on average, 9 direct flights that operate from George Bush Intercontinental Airport (IAH) to Harry Reid Intl. Airport (LAS) every day, you'll be off on your next adventure in no time.
What are the most popular departure times for flights from George Bush Intercontinental Airport (IAH) to Harry Reid Intl. Airport (LAS)?
More people fly between IAH and LAS at 6 PM than at any other point in the day. Rather skip the crowds? Consider flying outside peak hours and you could save on your ticket as well.
What day of the week has the most flights from IAH to LAS?
Depart on a Friday if you're looking for the largest selection of flights from George Bush Intercontinental Airport (IAH) to Harry Reid Intl. Airport (LAS).
What is the earliest flight from George Bush Intercontinental Airport (IAH) to Harry Reid Intl. Airport (LAS)?
Hop on the earliest flight at around 6:00AM UTC-6, departing from George Bush Intercontinental Airport (IAH). You'll be traveling for around 3h 22m, reaching Harry Reid Intl. Airport (LAS) at approximately 7:22AM UTC-8.
How long does it take to fly from George Bush Intercontinental Airport (IAH) to Harry Reid Intl. Airport (LAS)?
It takes roughly 3 hours and 30 minutes to travel the 1,200 mi from IAH to LAS.
What airline has the least delays from IAH to LAS?
United Airlines has the best track record for on-time direct flights from George Bush Intercontinental Airport (IAH) to Harry Reid Intl. Airport (LAS), with an on-time score of 84%. Use the Expedia App to check your flight schedule before you jet off and get immediate updates about any changes.
What is the best time to fly from George Bush Intercontinental Airport (IAH) to Harry Reid Intl. Airport (LAS)?
To land at Harry Reid Intl. Airport (LAS) on time, select a flight that leaves from George Bush Intercontinental Airport (IAH) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Las Vegas from George Bush Intercontinental Airport (IAH)?
If you're taking a direct flight from George Bush Intercontinental Airport (IAH) to Las Vegas, Harry Reid Intl. Airport (LAS) is the only airport you can touch down at.
Is it cheaper to buy a plane ticket from George Bush Intercontinental Airport (IAH) to Harry Reid Intl. Airport (LAS) last-minute?
Holding off until right before your break to book a ticket from IAH to LAS often results in higher prices. While it's possible to find some last-minute discounts, they're not always guaranteed. Be flexible with your travel plans to maximize your chances of landing a bargain.
Is it cheaper to book an IAH to LAS flight and hotel package?
Booking an IAH to LAS flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels all in one place. Select from our extensive range of stays and then add activities, flights 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 George Bush Intercontinental Airport (IAH) to Harry Reid Intl. Airport (LAS)?
If you booked your IAH to LAS flight within the last 24 hours, you may be able to modify or cancel it without fees. Depending on the airline and the type of ticket you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal if you'd like more information.

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