Cheap flights from San Francisco to Phoenix from $23 SFO → PHX

Found recently, and the cheapest we hold

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

What have prices looked like?

Over 45 days, 24 Sept to 12 Nov, the cheapest return we saw each day was $88 to $335.

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

Could nearby dates be cheaper?

We hold no other 2-night return fares leaving within 3 days of 15 Dec to compare.

Every date we hold

3 fares on 3 departure dates

Which month looks cheapest?

December 2026 is the cheapest month — from $94.

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 42 days, 24 Sept to 12 Nov, the cheapest one-way we saw each day was $22 to $131.

At $23, the cheapest one-way 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 one-way fares leaving within 3 days of 7 Dec to compare.

Every date we hold

1 fares on 1 departure dates

Return

Fares 14 to 29 days before departure were typically 60% lower than 0 to 6 days before departure.

From the cheapest return each day between 24 Sept and 12 Nov (45 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 14 to 29 days before departure were typically 68% lower than 0 to 6 days before departure.

From the cheapest one-way each day between 24 Sept and 12 Nov (42 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 Phoenix?

The cheapest return found recently is $94 with Alaska Airlines, 15 Dec to 17 Dec, found today. The cheapest return fare on each of 3 departure dates is usually $134 to $197.

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

The cheapest one-way found recently is $23 with Frontier Airlines, 7 Dec, found 3 days ago.

What is the cheapest month to fly from San Francisco to Phoenix?

December 2026 is the cheapest month for a return, from $94, 15 Dec to 17 Dec, found today.

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

In 45 days of prices between 24 Sept and 12 Nov, return fares 14 to 29 days before departure were typically 60% lower than 0 to 6 days before departure. In 42 days of prices between 24 Sept and 12 Nov, one-way fares 14 to 29 days before departure were typically 68% lower than 0 to 6 days before departure.

Is there a direct flight from San Francisco to Phoenix?

Yes, the cheapest nonstop return found recently is $220 with United Airlines, 4 Dec to 7 Dec, found 3 days ago. The cheapest nonstop one-way found recently is $23 with Frontier Airlines, 7 Dec, found 3 days ago.

How long is the flight from San Francisco to Phoenix?

The cheapest nonstop one-way found recently, with Frontier Airlines on 7 Dec, takes 2 h 9 min from San Francisco International Airport (SFO) to Phoenix Sky Harbor International Airport (PHX).

Which airlines have the cheapest flights from San Francisco to Phoenix?

Between 4 Dec and 2 Jan 2027, United Airlines has the cheapest return on 1 of the 3 departure dates we hold, Alaska Airlines on 1 and Frontier Airlines on 1.