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Domestic route

Cheap flights from Houston to Las Vegas

George Bush Intercontinental Airport (IAH) to Harry Reid International Airport (LAS). 1,220 miles, 3h 5m nonstop.

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IAH to LAS at a glance

Computed from airline schedules and the fares we track for this route. Refreshed several times a day.

Distance
1,220 milesgreat-circle
Typical flight time
3h 5mnonstop, gate to gate
Nonstop airlines
UAWNNKF94 airlinesUnited, Southwest, Spirit
Nonstop flights per day
23all airlines combined
Cheapest month
October 2026over the next six months
Best day to fly
Tuesday17% less than Sunday
Time difference
2h behindLas Vegas vs Houston

Houston to Las Vegas

Round trips from $101

Per traveler, taxes and fees included. Lowest fare we found departs Tue, Oct 6.

Cheapest month: October 2026

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Houston to Las Vegas fares by month

Lowest round-trip economy fare per traveler in each of the next six months, taxes and fees included. Select a month to search that date.

  1. September 2026from Tue, Sep 29$124
  2. October 2026from Tue, Oct 6$101
  3. November 2026from Wed, Nov 11$103
  4. December 2026from Tue, Dec 1$101
  5. January 2027from Wed, Jan 6$110
  6. February 2027from Tue, Feb 16$110

Airlines flying Houston to Las Vegas

4 airlines fly nonstop with 23 departures a day combined, plus 4 more with one stop.

Connecting options

Hubs where one airline can carry you on both legs, most choices first.

Which airport should I use?

Houston has 2 airports. Fares can differ by $50 to $150 round trip between them, so check the alternatives before you book.

Other departure airports near Houston

Tips for this route

  • United, Southwest, Spirit and Frontier all fly IAH to LAS nonstop, so compare the total with bags before picking the lowest base fare: the difference between a basic and a standard economy ticket is often less than one checked bag each way.
  • October 2026 is the cheapest month to fly over the next six months, with round trips from $101; September 2026 is the most expensive at $124 and up, a difference of $23 per traveler.
  • Departing on a Tuesday averages 17% less than a Sunday on this route. If your dates are flexible, shift the outbound by a day or two and check the calendar view before you book.
  • Fares on this route are usually lowest 4 to 8 weeks before departure and rise sharply inside two weeks.
  • Las Vegas is 2 hours behind Houston. A morning departure lands in Las Vegas with most of the day left; an evening flight arrives close to local dinner time.

Destination guide

Las Vegas: The Strip, the shows and the desert beyond

Las Vegas has more nonstop routes than almost any US leisure destination, which keeps fares low from every region. Harry Reid International sits a five-minute drive from the Strip, and midweek trips can be remarkably cheap.

Best time to visit: March–May and October–November are warm without the 105°F summer afternoons. Weekday arrivals (Sunday–Thursday) are far cheaper than Friday and Saturday.

Flying the other way? Las Vegas to HoustonFares, airlines and tips for LAS to IAH.

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See every airline on IAH–LAS side by side with bags and seat rules spelled out.

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Houston to Las Vegas: common questions

How long is the flight from Houston to Las Vegas?

A nonstop flight from Houston (IAH) to Las Vegas (LAS) takes about 3h 5m gate to gate, covering 1,220 miles. Connecting itineraries add the layover, typically 1 to 3 hours more in total.

Which airlines fly nonstop from IAH to LAS?

United Airlines, Southwest Airlines, Spirit Airlines and Frontier Airlines operate nonstop flights from Houston (IAH) to Las Vegas (LAS), with 23 nonstop departures a day between them. One-stop options connect through LAX, DFW and PHX.

What is the cheapest month to fly from Houston to Las Vegas?

Over the next six months, October 2026 has the lowest round-trip fares from Houston (IAH) to Las Vegas (LAS), starting at $101 per traveler including taxes and fees. Within any month, Tuesday departures average the lowest prices.

How far in advance should I book Houston to Las Vegas flights?

Fares on this route are usually lowest 4 to 8 weeks before departure and rise sharply inside two weeks. Air1 Tickets includes free cancellation within 24 hours of booking on every fare, so you can lock in a good price and keep looking.

What is the time difference between Houston and Las Vegas?

Las Vegas is 2 hours behind Houston. IAH is on America/Chicago time and LAS on America/Los Angeles time. Departure and arrival times in search results are always shown in local time at each airport.

Related routes

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