Cheap flights from San Francisco to Las Vegas from $23 SFO → LAS

Found recently, and the cheapest we hold

It is also the cheapest return we hold, of any age.

What have prices looked like?

Over 49 days, 24 Sept to 11 Nov, the cheapest return we saw each day was $39 to $85.

At $39, the cheapest return found recently is at the low end of that range.

Those were the prices on those days, not today's.

Could nearby dates be cheaper?

We hold no other 4-night return fares leaving within 3 days of 16 Feb 2027 to compare.

Every date we hold

71 fares on 9 departure dates

Which month looks cheapest?

February 2027 is the cheapest month — from $39.

Found recently, and the cheapest we hold

It is also the cheapest one-way we hold, of any age.

What have prices looked like?

Over 49 days, 24 Sept to 11 Nov, the cheapest one-way we saw each day was $21 to $35.

Those were the prices on those days, not today's.

Could nearby dates be cheaper?

No. We hold one-way fares on 1 other departure date within 3 days of 20 Jan 2027, and it is not cheaper.

Every date we hold

17 fares on 15 departure dates

Which month looks cheapest?

January 2027 is the cheapest month — from $23.

Return

Fares 30 to 59 days before departure were typically 58% lower than 0 to 6 days before departure.

From the cheapest return each day between 24 Sept and 11 Nov (49 days), grouped by how many days ahead the flight left; one adult in economy.

Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.

Prices reflect recent searches — current fares may differ.

One-way

Fares 30 to 59 days before departure were typically 72% lower than 0 to 6 days before departure.

From the cheapest one-way each day between 24 Sept and 11 Nov (49 days), grouped by how many days ahead the flight left; one adult in economy.

Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.

Prices reflect recent searches — current fares may differ.

How much is a return flight from San Francisco to Las Vegas?

The cheapest return found recently is $39 with Frontier Airlines, 16 Feb 2027 to 20 Feb 2027, found 2 days ago. The cheapest return fare on each of 9 departure dates is usually $105 to $236.

How much is a one-way flight from San Francisco to Las Vegas?

The cheapest one-way found recently is $23 with Frontier Airlines, 20 Jan 2027, found yesterday. The cheapest one-way fare on each of 15 departure dates is usually $38 to $89.

What is the cheapest month to fly from San Francisco to Las Vegas?

February 2027 is the cheapest month for a return, from $39, 16 Feb 2027 to 20 Feb 2027, found 2 days ago. January 2027 is the cheapest month for a one-way, from $23, 20 Jan 2027, found yesterday.

How far ahead should I book a flight from San Francisco to Las Vegas?

In 49 days of prices between 24 Sept and 11 Nov, return fares 30 to 59 days before departure were typically 58% lower than 0 to 6 days before departure. One-way fares 30 to 59 days before departure were typically 72% lower than 0 to 6 days before departure.

Is there a direct flight from San Francisco to Las Vegas?

Yes, the cheapest nonstop return found recently is $39 with Frontier Airlines, 16 Feb 2027 to 20 Feb 2027, found 2 days ago. The cheapest nonstop one-way found recently is $23 with Frontier Airlines, 20 Jan 2027, found yesterday.

How long is the flight from San Francisco to Las Vegas?

The cheapest nonstop one-way found recently, with Frontier Airlines on 20 Jan 2027, takes 1 h 42 min from San Francisco International Airport (SFO) to McCarran International Airport (LAS).

Which airlines have the cheapest flights from San Francisco to Las Vegas?

Between 13 Nov and 16 Feb 2027, Frontier Airlines has the cheapest return on all 9 departure dates we hold. Between 19 Nov and 9 Sept 2027, Frontier Airlines has the cheapest one-way on 13 of the 15 departure dates we hold, Southwest Airlines on 1 and Alaska Airlines on 1.