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Las Vegas to San Diego in December 2026 LAS → SAN

McCarran International Airport (LAS) → San Diego International Airport (SAN)

For departures in December 2026, the cheapest one-way found recently is $84 with Frontier Airlines, 20 Dec, found today.

One-way

In December 2026, the cheapest one-way fare on each of 7 departure dates is usually $48 to $75. Across all 9 departure dates we hold on this route, it is usually $49 to $84.

Cheapest one-way found recently

$84

20 Dec · Frontier Airlines

McCarran International Airport (LAS) → San Diego International Airport (SAN)

1 stop

found today

Open this tripCheck today's price

Cheapest we hold, of any age

$23

7 Dec · Frontier Airlines

McCarran International Airport (LAS) → San Diego International Airport (SAN)

nonstop

found 2 days ago

Open this tripCheck today's price

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The cheapest dates in December 2026

DatesFromAirlineStopsFound
7 Dec$23Frontier Airlinesnonstopfound 2 days agoOpen this trip
8 Dec$47Frontier Airlinesnonstopfound 2 days agoOpen this trip
9 Dec$49Frontier Airlinesnonstopfound 2 days agoOpen this trip
5 Dec$52Frontier Airlinesnonstopfound 2 days agoOpen this trip
6 Dec$65Frontier Airlinesnonstopfound 2 days agoOpen this trip

Every date we hold

7 departure dates

5 Dec: $52, found 2 days ago6 Dec: $65, found 2 days ago7 Dec: $23, found 2 days ago8 Dec: $47, found 2 days ago9 Dec: $49, found 2 days ago20 Dec: $84, found today21 Dec: $84, found todayDec
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
5 Dec$52Frontier AirlinesMcCarran International Airport (LAS) → San Diego International Airport (SAN)nonstopfound 2 days agoOpen this trip
6 Dec$65Frontier AirlinesMcCarran International Airport (LAS) → San Diego International Airport (SAN)nonstopfound 2 days agoOpen this trip
7 Dec$23Frontier AirlinesMcCarran International Airport (LAS) → San Diego International Airport (SAN)nonstopfound 2 days agoOpen this trip
8 Dec$47Frontier AirlinesMcCarran International Airport (LAS) → San Diego International Airport (SAN)nonstopfound 2 days agoOpen this trip
9 Dec$49Frontier AirlinesMcCarran International Airport (LAS) → San Diego International Airport (SAN)nonstopfound 2 days agoOpen this trip
20 Dec$84Frontier AirlinesMcCarran International Airport (LAS) → San Diego International Airport (SAN)1 stopfound todayOpen this trip
21 Dec$84Frontier AirlinesMcCarran International Airport (LAS) → San Diego International Airport (SAN)1 stopfound todayOpen this trip

Which month looks cheapest?

December 2026 is the cheapest month — from $23.

October 2026From $881 departure date29 Oct · found 6 days agoOpen this trip
December 2026From $23Cheapest seen7 departure dates7 Dec · found 2 days agoOpen this trip
January 2027From $781 departure date28 Jan 2027 · found todayOpen this trip

Prices are what travelers' searches on Aviasales found in the last 7 days, in US dollars: the price the seller showed on Aviasales; bags may cost extra. Fares change, so check today's price before you book. How our prices work