Route guide · 1,220 miles
Cheap Flights from Houston to Las Vegas
IAH → LAS · Nonstop 2h 59m · Live round-trip fares
If Las Vegas is next on your list, here's the honest picture on fares from Houston. The trip covers about 1,220 miles and takes roughly 2h 59m in the air. Prices on this route reward planners: booking 3–6 weeks ahead is the sweet spot, and the lowest fares tend to sell out fast.
Live fares for IAH → LAS are updating. Use the search below for real-time prices.
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See live fares
Updated daily
Flight time
2h 59m
Nonstop, typical
Distance
1,220 mi
IAH → LAS
Book ahead
3–6 weeks
Best window, typically
Nonstop airlines
2
Spirit Airlines, United Airlines
Nonstop flights from Houston to Las Vegas
Want to skip the layover? Nonstops from Houston to Las Vegas are flown by Spirit Airlines, United Airlines, getting you there in about 2h 59m. For the lowest fares, book around 3–6 weeks before departure — last-minute nonstops on this route rarely come cheap.
Booking insights: Houston → Las Vegas
- Distance: 1,220 miles · nonstop flight time: 2h 59m.
- Cheapest upcoming week in the live data starts around Oct 22, with fares from $164.
- Rule of thumb for this route: the sweet spot is usually 3–6 weeks before departure.
- If your dates flex by a day or two, shifting to a midweek departure is the easiest saving there is.
- Set a free Airfare Deal alert instead of checking daily — the best fares can sell out in hours.
Price trend
Cheapest departure weeks ahead
Departing around Oct 22 is currently the cheapest window — about $42 less than the nearest weeks. Based on recent fares found for this route; prices change quickly.
Cheapest month · Houston → Las Vegas
October 2026
Every date's recent round-trip fare, at a glance.
Fares from
$164
Cheapest: Wed, Oct 28 — $164 · Priciest: Oct 17 — $235
Get this fare →Recent fares found for specific dates in October 2026. Blank days had no recent fare in our data — ask our team and we'll check them for you.
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Flying from Houston to Las Vegas: what you need to know
The flight
Houston to Las Vegas is a proper cross-country leg — 1,220 miles and around 2h 59m in the air nonstop. Download entertainment before you board, bring a full water bottle, and think about the time change: even a two-hour shift can leave you groggy if you land late and start early.
Airlines on this route
Spirit Airlines and United Airlines fly this route nonstop. That matters more than it sounds: the cheapest fare on one carrier is rarely the same product as the cheapest on another. Checked-bag fees, free seat selection and change rules all differ, so compare the full trip cost before you pick a winner. See our airline guides for exactly what each carrier charges — then send an enquiry and we'll confirm the all-in price for your dates.
Leaving from Houston (IAH)
Plan to be at the airport two hours before a domestic departure — ninety minutes can work at smaller airports outside peak times, but security lines are the one variable you can't control. If you're checking a bag, add time rather than cutting it close. Our Houston airport guide covers terminals, parking and ground transport so you can plan the trip to the airport, not just the flight.
Arriving in Las Vegas (LAS)
Before you land, know how you're getting from the airport to where you're staying — it's the part of the trip people forget to plan. The Las Vegas airport guide lays out your ground options, from transit and shuttles to rideshares and rental cars. Flying back the other way? Check Las Vegas to Houston fares — prices on the return direction often move on a different rhythm.
When to book
For a trip of 1,220 miles, booking 3–6 weeks ahead typically lands you in the sweet spot. Leave it to the final two weeks and prices usually climb as the cheapest seats sell out. If your dates are flexible, midweek departures are where the lower fares hide on most domestic routes.
Good to know before you go
- If you're traveling with only a carry-on, you can skip the bag-drop line entirely with mobile check-in.
- Download the airline's app before you fly; gate changes and delays show up there first.
- Nonstop time on this route is about 2h 59m — a one-stop itinerary needs to be a lot cheaper to be worth the extra hours.
- Tuesday and Wednesday departures are typically the cheapest days on domestic routes.
- Screenshot your fare before you enquire — prices move, and a saved fare helps our team match or beat it.
Houston to Las Vegas flight FAQs
How long is the flight from IAH to LAS?
Nonstop flights from Houston to Las Vegas take about 2h 59m and cover roughly 1,220 miles. One-stop itineraries add 2–4 hours depending on the layover city.
Are there nonstop flights from Houston to Las Vegas?
Yes — look for Spirit Airlines, United Airlines on this route. Nonstop seats are usually priced best 3–6 weeks before departure.
What is the cheapest month to fly from Houston to Las Vegas?
There's no single magic month, but prices on this route generally soften in the shoulder season, when demand dips after the holidays and again in early fall. A free fare alert is the easiest way to catch those windows.
How much are last minute flights from IAH to LAS?
Walking up to this route at the last minute is the expensive way to do it — prices inside 7 days of departure climb fast. The 3–6 weeks booking window is where the value sits.
What is a good round-trip deal from Houston to Las Vegas?
A good deal is anything at or below the recent fares shown above. Set a free Airfare Deal alert and we'll ping you the moment fares drop.
Which airlines fly from Houston to Las Vegas?
The main carriers on this route are Spirit Airlines, United Airlines. Comparing all of them on the live search below usually surfaces the lowest fare for your dates.
How early should I get to Houston airport for this flight?
Plan on two hours before departure for a domestic flight — ninety minutes can work at smaller airports outside peak times. If you're checking a bag, earlier is better; the bag-drop line, not the flight, is what runs late.
Do the cheapest fares on this route include a checked bag?
Usually not. Basic economy fares on most airlines include a carry-on but charge extra for checked bags, and seat selection can cost more too. Add up the real total before comparing — a slightly higher regular fare sometimes works out cheaper. Our team confirms the full breakdown with you before you pay.
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