$99 Cheap Flights from Santa Rosa (STS) to Las Vegas (LAS)

View $99 flight on Tue, Sep 23, 2025Opens in a new window

Popular airlines from Santa Rosa, CA (STS-Sonoma County) to Harry Reid Intl. Airport (LAS)

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Cheap Flights from Santa Rosa to Las Vegas (STS-LAS)

Prices were available within the past 7 days and start at $99 for one-way flights and $157 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Wed, Aug 20 - Tue, Sep 2
STS
Santa Rosa
LAS
Las Vegas
$157 Roundtrip, just found
$157
Roundtrip
just found
Select Alaska Airlines flight, departing Wed, Aug 20 from Santa Rosa to Las Vegas, returning Tue, Sep 2, priced at $157 just found
American Airlines
Tue, Aug 12 - Tue, Aug 19
STS
Santa Rosa
LAS
Las Vegas
$177 Roundtrip, found 2 hours ago
$177
Roundtrip
found 2 hours ago
Select American Airlines flight, departing Tue, Aug 12 from Santa Rosa to Las Vegas, returning Tue, Aug 19, priced at $177 found 2 hours ago
Hawaiian Airlines
Sat, Aug 23 - Fri, Sep 5
STS
Santa Rosa
LAS
Las Vegas
$177 Roundtrip, found 5 hours ago
$177
Roundtrip
found 5 hours ago
Select Hawaiian Airlines flight, departing Sat, Aug 23 from Santa Rosa to Las Vegas, returning Fri, Sep 5, priced at $177 found 5 hours ago
Hawaiian Airlines
Thu, Aug 21 - Fri, Sep 5
STS
Santa Rosa
LAS
Las Vegas
$180 Roundtrip, found 5 hours ago
$180
Roundtrip
found 5 hours ago
Select Hawaiian Airlines flight, departing Thu, Aug 21 from Santa Rosa to Las Vegas, returning Fri, Sep 5, priced at $180 found 5 hours ago
Hawaiian Airlines
Sat, Sep 13 - Sat, Oct 4
STS
Santa Rosa
LAS
Las Vegas
$183 Roundtrip, found 4 days ago
$183
Roundtrip
found 4 days ago
Select Hawaiian Airlines flight, departing Sat, Sep 13 from Santa Rosa to Las Vegas, returning Sat, Oct 4, priced at $183 found 4 days ago
Hawaiian Airlines
Sat, Dec 6 - Wed, Dec 10
STS
Santa Rosa
LAS
Las Vegas
$188 Roundtrip, found 6 hours ago
$188
Roundtrip
found 6 hours ago
Select Hawaiian Airlines flight, departing Sat, Dec 6 from Santa Rosa to Las Vegas, returning Wed, Dec 10, priced at $188 found 6 hours ago
Hawaiian Airlines
Sat, Sep 6 - Tue, Sep 23
STS
Santa Rosa
LAS
Las Vegas
$190 Roundtrip, found 13 hours ago
$190
Roundtrip
found 13 hours ago
Select Hawaiian Airlines flight, departing Sat, Sep 6 from Santa Rosa to Las Vegas, returning Tue, Sep 23, priced at $190 found 13 hours ago
Alaska Airlines
Thu, Aug 28 - Sat, Aug 30
STS
Santa Rosa
LAS
Las Vegas
$197 Roundtrip, just found
$197
Roundtrip
just found
Select Alaska Airlines flight, departing Thu, Aug 28 from Santa Rosa to Las Vegas, returning Sat, Aug 30, priced at $197 just found
Hawaiian Airlines
Thu, Dec 4 - Sat, Dec 13
STS
Santa Rosa
LAS
Las Vegas
$199 Roundtrip, found 6 hours ago
$199
Roundtrip
found 6 hours ago
Select Hawaiian Airlines flight, departing Thu, Dec 4 from Santa Rosa to Las Vegas, returning Sat, Dec 13, priced at $199 found 6 hours ago
Hawaiian Airlines
Thu, Aug 21 - Sat, Sep 6
STS
Santa Rosa
LAS
Las Vegas
$200 Roundtrip, found 5 hours ago
$200
Roundtrip
found 5 hours ago
Select Hawaiian Airlines flight, departing Thu, Aug 21 from Santa Rosa to Las Vegas, returning Sat, Sep 6, priced at $200 found 5 hours ago

Find the cheapest month to fly from Santa Rosa (STS) to Las Vegas (LAS)

November is typically the cheapest month to fly

From $88 - $347 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 $157
LAS
McCarran Intl.
CheapestClosest
Average driving time to city center6 min
Flights from $157
Flights from Santa Rosa (STS) to Las Vegas (LAS)
Origin airport
Sonoma County
Destination airport
Harry Reid Intl.
Airlines serving
Alaska Airlines, American Airlines, Hawaiian Airlines
Roundtrip price
$157
Distance
452 mi
Average flight time
1 hour 37 mins

Santa Rosa to Las Vegas Flights

The cheapest times to fly from Santa Rosa 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 Santa Rosa to Las Vegas are during the month of August. You can find some of the cheapest flights from Santa Rosa to Las Vegas with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Santa Rosa to Las Vegas

Sunday is one of the best days to book for cheap flights from Santa Rosa 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 Santa Rosa 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 Santa Rosa to Las Vegas in 2025. You can also book with separate airlines for your outbound and return journeys, from $99 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 Santa Rosa 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 Santa Rosa 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 Sonoma County Airport (STS) to Harry Reid Intl. Airport (LAS) cost?
Snag cheap return flights starting at $157 from Sonoma County Airport (STS) 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 Alaska Airlines flight leaving STS on August 12 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 STS to LAS?
The cheapest flights from STS 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 Sonoma County Airport (STS) to Harry Reid Intl. Airport (LAS)?
You can fly directly from Sonoma County Airport (STS) to Harry Reid Intl. Airport (LAS) on an Alaska Airlines flight.
What is the cheapest airline that flies from STS to LAS?
With prices starting from $99 for a one-way journey from STS to LAS, Alaska Airlines is currently the cheapest airline on this route. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from STS on October 15 2025. Prices were last updated on July 23 2025 and have not changed since.
How many flights per day from Sonoma County Airport (STS) to Harry Reid Intl. Airport (LAS)?
On average, just 1 nonstop flight departs daily from Sonoma County Airport (STS) to Harry Reid Intl. Airport (LAS). Want more options? Use Expedia's filters to find flights with layovers and squeeze in a visit to another city along the way.
What are the most popular departure times for flights from Sonoma County Airport (STS) to Harry Reid Intl. Airport (LAS)?
The 12 PM departures from STS to LAS are the busiest. Greater demand means you'll likely pay more for these departures. If you want to save money, pick a less crowded time to fly.
What day of the week has the most flights from STS to LAS?
If you travel on a Friday, you'll get the biggest range of choices for flights from Sonoma County Airport (STS) to Harry Reid Intl. Airport (LAS).
What is the earliest flight from Sonoma County Airport (STS) to Harry Reid Intl. Airport (LAS)?
Sonoma County Airport (STS)'s first flight to Harry Reid Intl. Airport (LAS) leaves at approximately 9:10AM UTC-8. With a total journey time of 1h 34m, you'll land at around 10:44AM UTC-8.
How long does it take to fly from Sonoma County Airport (STS) to Harry Reid Intl. Airport (LAS)?
Flights from STS to LAS have an average travel time of 1 hour and 32 minutes. The total distance between the two airports is 450 mi.
What airline has the least delays from STS to LAS?
With 100% of journeys generally arriving as scheduled, Alaska Airlines has the best on-time performance for nonstop flights from Sonoma County Airport (STS) to Harry Reid Intl. Airport (LAS). To check your flight status and get notified if anything changes, head to the Expedia App.
What is the best time to fly from Sonoma County Airport (STS) to Harry Reid Intl. Airport (LAS)?
Select a flight from Sonoma County Airport (STS) to Harry Reid Intl. Airport (LAS) that leaves before 3 PM to reduce the risk of delays and cancellations. Departures after this time are on average 22% more likely to be canceled.**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 Sonoma County Airport (STS)?
Harry Reid Intl. Airport (LAS) is the only airport in Las Vegas with direct flights from Sonoma County Airport (STS). Consider the options and discover affordable fares on Expedia.
Is it cheaper to buy a plane ticket from Sonoma County Airport (STS) to Harry Reid Intl. Airport (LAS) last-minute?
Last-minute bookings from STS to LAS are typically more expensive. To lock in the lowest rates, start looking for flights well in advance. That being said, if you can play around with your travel dates, you may land a cheap ticket just before your departure.
Is it cheaper to book a STS to LAS flight and hotel package?
You'll generally save money by booking a STS to LAS flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage it all in one place. Once you've selected your ideal accommodations and flights, consider other add-ons like tours, car rentals and activities.
Can I cancel or change the date of my flight from Sonoma County Airport (STS) to Harry Reid Intl. Airport (LAS)?
In most cases, you can modify or cancel your STS to LAS flight. However, additional fees may apply, especially if your booking was made more than 24 hours ago. Check your itinerary for the airline's policies and fees on flight changes, or if you need more information, visit our Customer Service portal.

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