Cheap flights from Chicago to Phoenix from $51 MDW, ORD, RFD → AZA, PHX

Found recently, and the cheapest we hold

What have prices looked like?

Over 49 days, 24 Sept to 11 Nov, the cheapest return we saw each day was $164 to $269.

At $317, the cheapest return found recently is above that range.

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

Could nearby dates be cheaper?

No. We hold 3-night return fares on 1 other departure date within 3 days of 20 Nov, and it is not cheaper.

Every date we hold

80 fares on 6 departure dates

Which month looks cheapest?

December 2026 is the cheapest month — from $184.

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 $51 to $178.

At $51, 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 9 Dec to compare.

Every date we hold

11 fares on 5 departure dates

Which month looks cheapest?

December 2026 is the cheapest month — from $51.

Return

Fares 30 to 59 days before departure were typically 35% 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 68% 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 Chicago to Phoenix?

The cheapest return found recently is $317 with Allegiant Air, 20 Nov to 23 Nov, found 2 days ago. The cheapest return we hold, of any age, is $184 with Frontier Airlines, 12 Dec to 21 Dec, found 7 days ago. The cheapest return fare on each of 6 departure dates is usually $282 to $420.

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

The cheapest one-way found recently is $51 with Allegiant Air, 9 Dec, found 2 days ago. The cheapest one-way fare on each of 5 departure dates is usually $117 to $173.

What is the cheapest month to fly from Chicago to Phoenix?

December 2026 is the cheapest month for a return, from $184, 12 Dec to 21 Dec, found 7 days ago. It is the cheapest month for a one-way too, from $51, 9 Dec, found 2 days ago.

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

In 49 days of prices between 24 Sept and 11 Nov, return fares 30 to 59 days before departure were typically 35% lower than 0 to 6 days before departure. One-way fares 30 to 59 days before departure were typically 68% lower than 0 to 6 days before departure.

Is there a direct flight from Chicago to Phoenix?

Yes, the cheapest nonstop return found recently is $317 with Allegiant Air, 20 Nov to 23 Nov, found 2 days ago. The cheapest nonstop one-way found recently is $51 with Allegiant Air, 9 Dec, found 2 days ago.

How long is the flight from Chicago to Phoenix?

The cheapest nonstop one-way found recently, with Allegiant Air on 9 Dec, takes 3 h 44 min from Chicago Rockford International Airport (RFD) to Phoenix-Mesa Gateway Airport (AZA).

Which airlines have the cheapest flights from Chicago to Phoenix?

Between 20 Nov and 29 Dec, Allegiant Air has the cheapest return on 3 of the 6 departure dates we hold, and Frontier Airlines on 3. Between 20 Nov and 17 Mar 2027, Allegiant Air has the cheapest one-way on 2 of the 5 departure dates we hold, Frontier Airlines on 2 and American Airlines on 1.