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New York to San Francisco in December 2026 EWR, JFK, LGA → SFO

Newark Liberty International Airport (EWR), John F. Kennedy International Airport (JFK), LaGuardia Airport (LGA) → San Francisco International Airport (SFO)

For departures in December 2026, the cheapest return found recently is $293 with Southwest Airlines, 3 Dec – 14 Dec, found 5 hours ago.

Return

In December 2026, the cheapest return fare on each of 12 departure dates is usually $394 to $461. Across all 24 departure dates we hold on this route, it is usually $386 to $445. Of the 3 months with enough return fares to compare, December 2026 is usually the most expensive.

Cheapest return found recently

$293

3 Dec – 14 Dec · Southwest Airlines

LaGuardia Airport (LGA) → San Francisco International Airport (SFO)

out 1 stop, back 1 stop

found 5 hours ago

See prices for these datesCheck today's price

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

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The cheapest dates in December 2026

DatesFromAirlineStopsFound
3 Dec – 14 Dec$293Southwest Airlinesout 1 stop, back 1 stopfound 5 hours agoSee prices for these dates
7 Dec – 15 Dec$346American Airlinesout 1 stop, back nonstopfound yesterdaySee prices for these dates
10 Dec – 13 Dec$369jetBlueout nonstop, back nonstopfound 2 days agoSee prices for these dates
24 Dec – 5 Jan 2027$402Alaska Airlinesout 2 stops, back 1 stopfound 2 days agoSee prices for these dates
9 Dec – 17 Dec$408American Airlinesout nonstop, back 1 stopfound yesterdaySee prices for these dates

Every date we hold

12 departure dates

3 Dec – 14 Dec: $293, found 5 hours ago7 Dec – 15 Dec: $346, found yesterday8 Dec – 17 Dec: $436, found 2 days ago9 Dec – 17 Dec: $408, found yesterday10 Dec – 13 Dec: $369, found 2 days ago11 Dec – 21 Dec: $438, found yesterday15 Dec – 28 Dec: $442, found 3 days ago21 Dec – 30 Dec: $517, found 3 days ago22 Dec – 8 Jan 2027: $534, found 6 days ago24 Dec – 5 Jan 2027: $402, found 2 days ago25 Dec – 29 Dec: $627, found 2 days ago30 Dec – 12 Jan 2027: $441, found 3 days agoDec
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
3 Dec – 14 Dec$293Southwest AirlinesLaGuardia Airport (LGA) → San Francisco International Airport (SFO)out 1 stop, back 1 stopfound 5 hours agoSee prices for these dates
7 Dec – 15 Dec$346American AirlinesNewark Liberty International Airport (EWR) → San Francisco International Airport (SFO)out 1 stop, back nonstopfound yesterdaySee prices for these dates
8 Dec – 17 Dec$436jetBlueJohn F. Kennedy International Airport (JFK) → San Francisco International Airport (SFO)out nonstop, back 1 stopfound 2 days agoSee prices for these dates
9 Dec – 17 Dec$408American AirlinesJohn F. Kennedy International Airport (JFK) → San Francisco International Airport (SFO)out nonstop, back 1 stopfound yesterdaySee prices for these dates
10 Dec – 13 Dec$369jetBlueJohn F. Kennedy International Airport (JFK) → San Francisco International Airport (SFO)out nonstop, back nonstopfound 2 days agoSee prices for these dates
11 Dec – 21 Dec$438American AirlinesLaGuardia Airport (LGA) → San Francisco International Airport (SFO)out 1 stop, back 1 stopfound yesterdaySee prices for these dates
15 Dec – 28 Dec$442American AirlinesNewark Liberty International Airport (EWR) → San Francisco International Airport (SFO)out 1 stop, back 1 stopfound 3 days agoSee prices for these dates
21 Dec – 30 Dec$517American AirlinesLaGuardia Airport (LGA) → San Francisco International Airport (SFO)out 1 stop, back 1 stopfound 3 days agoSee prices for these dates
22 Dec – 8 Jan 2027$534jetBlueJohn F. Kennedy International Airport (JFK) → San Francisco International Airport (SFO)out 1 stop, back 1 stopfound 6 days agoSee prices for these dates
24 Dec – 5 Jan 2027$402Alaska AirlinesNewark Liberty International Airport (EWR) → San Francisco International Airport (SFO)out 2 stops, back 1 stopfound 2 days agoSee prices for these dates
25 Dec – 29 Dec$627Sun Country AirlinesJohn F. Kennedy International Airport (JFK) → San Francisco International Airport (SFO)out 1 stop, back 1 stopfound 2 days agoSee prices for these dates
30 Dec – 12 Jan 2027$441Frontier AirlinesLaGuardia Airport (LGA) → San Francisco International Airport (SFO)out 2 stops, back 3 stopsfound 3 days agoSee prices for these dates

Which month looks cheapest?

December 2026 is the cheapest month — from $293.

October 2026From $3733 departure dates28 Oct – 30 Oct · found 5 days agoSee prices for these dates
November 2026From $3543 departure dates17 Nov – 26 Nov · found 3 days agoSee prices for these dates
December 2026From $293Cheapest seen12 departure dates3 Dec – 14 Dec · found 5 hours agoSee prices for these dates
January 2027From $4102 departure dates5 Jan 2027 – 8 Jan 2027 · found 5 days agoSee prices for these dates
March 2027From $4422 departure dates13 Mar 2027 – 19 Mar 2027 · found yesterdaySee prices for these dates
June 2027From $4371 departure date2 Jun 2027 – 16 Jun 2027 · found 4 days agoSee prices for these dates

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