# St. Louis (STL) to Phoenix (PHX) economy award flights

Source: https://miles.zone/routes/stl-phx
Data updated: 2026-10-08T11:59:10.426Z
Cash amounts are in US dollars.

Fewest points: 7,500 Atmos points plus $26 on American Airlines through Atmos Rewards, departing 2026-10-24.

## Every program and airline that can book it, next 60 days

| Airline | Program | Points | Cash on top | Routing | Departs | Checked |
| --- | --- | --- | --- | --- | --- | --- |
| Alaska Airlines | [Atmos Rewards](https://miles.zone/programs/atmos-rewards) | 10,000 Atmos points | $6 | via SEA | 2026-12-08 | 8 Oct 2026, 11:59 UTC |
| American Airlines | [Atmos Rewards](https://miles.zone/programs/atmos-rewards) | 7,500 Atmos points | $26 | Nonstop | 2026-10-24 | 8 Oct 2026, 11:58 UTC |

## Route facts

Over the next 60 days we hold economy seats from St. Louis to Phoenix on 60 of the 60 departure days, through 1 program. These figures are counted from the seats stored for those dates, not from a price history; the typical day is the median of each day's cheapest seat.

| Program | Days with space | Lowest | Typical day | Cash on top |
| --- | --- | --- | --- | --- |
| [Atmos Rewards](https://miles.zone/programs/atmos-rewards) | 60 of 60 | 7,500 Atmos points | 7,500 Atmos points | $6 to $31 |

Nonstop seats on American Airlines.
With a connection on Alaska Airlines.

## How to book it

1. [Atmos Rewards](https://miles.zone/programs/atmos-rewards) books on alaskaair.com: sign in there, search STL to PHX in economy on a date with space, and pay in Atmos points with the cash on top (from $6).

MilesZone finds the seat; it does not book it or take payment.

## More routes from St. Louis

- [Charlotte (CLT)](https://miles.zone/routes/stl-clt)
- [Dallas (DFW)](https://miles.zone/routes/stl-dfw)
- [Chicago (ORD)](https://miles.zone/routes/stl-ord)
- [Boston (BOS)](https://miles.zone/routes/stl-bos)
- [Indianapolis (IND)](https://miles.zone/routes/stl-ind)
- [Miami (MIA)](https://miles.zone/routes/stl-mia)
- [Philadelphia (PHL)](https://miles.zone/routes/stl-phl)
- [Seattle (SEA)](https://miles.zone/routes/stl-sea)
- [Anchorage (ANC)](https://miles.zone/routes/stl-anc)
- [Portland (PDX)](https://miles.zone/routes/stl-pdx)
- [San Francisco (SFO)](https://miles.zone/routes/stl-sfo)
- [Detroit (DTW)](https://miles.zone/routes/stl-dtw)

## More routes to Phoenix

- [Burbank (BUR)](https://miles.zone/routes/bur-phx)
- [Denver (DEN)](https://miles.zone/routes/den-phx)
- [Los Angeles (LAX)](https://miles.zone/routes/lax-phx)
- [Ontario (ONT)](https://miles.zone/routes/ont-phx)
- [Reno (RNO)](https://miles.zone/routes/rno-phx)
- [San Diego (SAN)](https://miles.zone/routes/san-phx)
- [San Luis Obispo (SBP)](https://miles.zone/routes/sbp-phx)
- [San Francisco (SFO)](https://miles.zone/routes/sfo-phx)
- [San Jose (SJC)](https://miles.zone/routes/sjc-phx)
- [Salt Lake City (SLC)](https://miles.zone/routes/slc-phx)
- [Sacramento (SMF)](https://miles.zone/routes/smf-phx)
- [Santa Rosa (STS)](https://miles.zone/routes/sts-phx)