$49 Cheap Flights from San Francisco (SFO) to Las Vegas (LAS)

View $49 flight on Sun, Jul 27, 2025Opens in a new window

Popular airlines from San Francisco Intl. Airport (SFO) to Harry Reid Intl. Airport (LAS)

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Cheap Flights from San Francisco to Las Vegas (SFO-LAS)

Prices were available within the past 7 days and start at $49 for one-way flights and $90 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Tue, Aug 5 - Wed, Aug 6
SFO
San Francisco
LAS
Las Vegas
$90 Roundtrip, just found
$90
Roundtrip
just found
Select Frontier Airlines flight, departing Tue, Aug 5 from San Francisco to Las Vegas, returning Wed, Aug 6, priced at $90 just found
Frontier Airlines
Wed, Aug 20 - Sat, Aug 23
SFO
San Francisco
LAS
Las Vegas
$95 Roundtrip, just found
$95
Roundtrip
just found
Select Frontier Airlines flight, departing Wed, Aug 20 from San Francisco to Las Vegas, returning Sat, Aug 23, priced at $95 just found
Southwest Airlines
Wed, Aug 20 - Sat, Aug 23
SFO
San Francisco
LAS
Las Vegas
$97 Roundtrip, just found
$97
Roundtrip
just found
Select Southwest Airlines flight, departing Wed, Aug 20 from San Francisco to Las Vegas, returning Sat, Aug 23, priced at $97 just found
Hawaiian Airlines
Tue, Aug 12 - Fri, Aug 22
SFO
San Francisco
LAS
Las Vegas
$97 Roundtrip, found 8 hours ago
$97
Roundtrip
found 8 hours ago
Select Hawaiian Airlines flight, departing Tue, Aug 12 from San Francisco to Las Vegas, returning Fri, Aug 22, priced at $97 found 8 hours ago
Southwest Airlines
Wed, Aug 20 - Sat, Aug 23
SFO
San Francisco
LAS
Las Vegas
$97 Roundtrip, just found
$97
Roundtrip
just found
Select Southwest Airlines flight, departing Wed, Aug 20 from San Francisco to Las Vegas, returning Sat, Aug 23, priced at $97 just found
Frontier Airlines
Fri, Sep 5 - Sun, Sep 7
SFO
San Francisco
LAS
Las Vegas
$100 Roundtrip, just found
$100
Roundtrip
just found
Select Frontier Airlines flight, departing Fri, Sep 5 from San Francisco to Las Vegas, returning Sun, Sep 7, priced at $100 just found
Frontier Airlines
Mon, Aug 11 - Thu, Aug 14
SFO
San Francisco
LAS
Las Vegas
$101 Roundtrip, found 1 hour ago
$101
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Mon, Aug 11 from San Francisco to Las Vegas, returning Thu, Aug 14, priced at $101 found 1 hour ago
Frontier Airlines
Wed, Aug 20 - Sat, Aug 23
SFO
San Francisco
LAS
Las Vegas
$103 Roundtrip, just found
$103
Roundtrip
just found
Select Frontier Airlines flight, departing Wed, Aug 20 from San Francisco to Las Vegas, returning Sat, Aug 23, priced at $103 just found
United
Sun, Jul 27 - Thu, Jul 31
SFO
San Francisco
LAS
Las Vegas
$106 Roundtrip, just found
$106
Roundtrip
just found
Select United flight, departing Sun, Jul 27 from San Francisco to Las Vegas, returning Thu, Jul 31, priced at $106 just found
American Airlines
Wed, Aug 20 - Sat, Aug 23
SFO
San Francisco
LAS
Las Vegas
$159 Roundtrip, just found
$159
Roundtrip
just found
Select American Airlines flight, departing Wed, Aug 20 from San Francisco to Las Vegas, returning Sat, Aug 23, priced at $159 just found

Find the cheapest month to fly from San Francisco (SFO) to Las Vegas (LAS)

September is typically the cheapest month to fly

From $48 - $97 per traveler.

Graph displaying average flight prices per month

Flights from San Francisco (SFO) to Las Vegas (LAS)
Origin airport
San Francisco Intl.
Destination airport
Harry Reid Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, JetBlue Airways, Southwest Airlines, United
Roundtrip price
$84
Distance
413 mi
Average flight time
1 hour 37 mins

San Francisco to Las Vegas Flights

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

 

The best time to book a flight from San Francisco to Las Vegas

Sunday is one of the best days to book for cheap flights from San Francisco 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 San Francisco 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 San Francisco to Las Vegas in 2025. You can also book with separate airlines for your outbound and return journeys, from $49 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 San Francisco 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 San Francisco 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 San Francisco Intl. Airport (SFO) to Harry Reid Intl. Airport (LAS) cost?
Snag cheap return fares starting at $90 from San Francisco Intl. Airport (SFO) 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 Frontier Airlines flight leaving SFO on July 29 2025 and touching down at LAS. The price was last updated on July 2 2025 and has not changed since.
What is the cheapest month to fly from SFO to LAS?
The cheapest flights from SFO 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 San Francisco Intl. Airport (SFO) to Harry Reid Intl. Airport (LAS)?
Avoid the detours and fly nonstop from San Francisco Intl. Airport (SFO) to Harry Reid Intl. Airport (LAS) with 4 carriers, including:

  • United Airlines
  • Southwest Airlines
  • Alaska Airlines

What is the cheapest airline that flies from SFO to LAS?
At the moment, the cheapest airline offering one-way flights from SFO to LAS is Alaska Airlines. You can take off on this route from $49. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from SFO on September 27 2025. Prices were last updated on July 2 2025 and have not changed since.
How many flights per day from San Francisco Intl. Airport (SFO) to Harry Reid Intl. Airport (LAS)?
When departing from San Francisco Intl. Airport (SFO), you can take your pick from an average of 16 daily direct flights to Harry Reid Intl. Airport (LAS).
What are the most popular departure times for flights from San Francisco Intl. Airport (SFO) to Harry Reid Intl. Airport (LAS)?
The 10 AM departures from SFO to LAS are the busiest. They can also be more expensive. If you're looking to save, book during off-peak hours.
What day of the week has the most flights from SFO to LAS?
Friday offers the most flights from San Francisco Intl. Airport (SFO) to Harry Reid Intl. Airport (LAS). Consider taking off on this day and you'll have a greater chance of finding a departure that fits your schedule.
What is the earliest flight from San Francisco Intl. Airport (SFO) to Harry Reid Intl. Airport (LAS)?
San Francisco Intl. Airport (SFO)'s earliest flight to Harry Reid Intl. Airport (LAS) departs at approximately 5:35AM UTC-8. With a total travel time of 1h 35m, you'll land at around 7:10AM UTC-8.
How long does it take to fly from San Francisco Intl. Airport (SFO) to Harry Reid Intl. Airport (LAS)?
It usually takes 1 hour and 40 minutes to cover the 410 mi from SFO to LAS.
What is the best time to fly from San Francisco Intl. Airport (SFO) to Harry Reid Intl. Airport (LAS)?
To avoid possible delays on the San Francisco Intl. Airport (SFO) to Harry Reid Intl. Airport (LAS) route, aim to fly before 3 PM. Flights after this time have a 22% higher chance of cancellation.**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 San Francisco Intl. Airport (SFO)?
Harry Reid Intl. Airport (LAS) is the only airport in Las Vegas with direct flights from San Francisco Intl. Airport (SFO). Explore your options and find cheap fares on Expedia.
Is it cheaper to buy a plane ticket from San Francisco Intl. Airport (SFO) to Harry Reid Intl. Airport (LAS) last-minute?
Booking your plane ticket from SFO to LAS shortly before your getaway is generally more expensive. However, if you're flexible with your travel times and dates, you could land a cheap last-minute fare.
Is it cheaper to book a SFO to LAS flight and hotel package?
Opting for a SFO to LAS flight and hotel package is generally 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 accommodations and then add flights, car rentals and activities to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from San Francisco Intl. Airport (SFO) to Harry Reid Intl. Airport (LAS)?
Usually, it's possible to cancel or reschedule your SFO to LAS flight. However, for bookings made more than 24 hours ago, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are possible and if any costs are involved. You'll also find more details on our Customer Service portal.

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*Available to One Key members.