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Phoenix → Saint Louis

Dec 21, 2026 · return Dec 27, 2026

PHX → STL1 adulteconomyRound trip

10 flight options · 4 airlines

Nonstop flights

Mon, Dec 21 – Sun, Dec 27

Southwest Airlines
6:05 pmPHX
2h 50m
Nonstop
9:55 pmSTL
Southwest Airlines
1:50 pmSTL
3h 20m
Nonstop
4:10 pmPHX

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Sun, Dec 27

American Airlines
9:45 amPHX
3h 6m
Nonstop
1:51 pmSTL
American Airlines
2:45 pmSTL
3h 24m
Nonstop
5:09 pmPHX

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Sun, Dec 27

Southwest Airlines
5:45 amPHX
2h 45m
Nonstop
9:30 amSTL
Southwest Airlines
1:50 pmSTL
3h 20m
Nonstop
4:10 pmPHX

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Sun, Dec 27

American Airlines
7:56 pmPHX
2h 56m
Nonstop
11:52 pmSTL
American Airlines
2:45 pmSTL
3h 24m
Nonstop
5:09 pmPHX

Round-trip total · 1 adult · Taxes included

One-stop flights

Mon, Dec 21 – Sun, Dec 27

United Airlines
2:50 pmPHX
5h 7m
DEN · 1h 5m
8:57 pmSTL
United Airlines
2:25 pmSTL
6h 33m
DEN · 1h 41m
7:58 pmPHX

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Sun, Dec 27

Delta Air Lines
2:32 pmPHX
5h 46m
SLC · 1h 16m
9:18 pmSTL
Delta Air Lines
6:03 amSTL
6h 33m
MSP · 1h 18m
11:36 amPHX

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Sun, Dec 27

Southwest Airlines
12:05 pmPHX
6h 5m
MCI · 2h 25m
7:10 pmSTL
Southwest Airlines
1:50 pmSTL
3h 20m
Nonstop
4:10 pmPHX

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Sun, Dec 27

Southwest Airlines
12:45 pmPHX
5h 25m
AUS · 1h 10m
7:10 pmSTL
Southwest Airlines
1:50 pmSTL
3h 20m
Nonstop
4:10 pmPHX

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Sun, Dec 27

Southwest Airlines
5:10 amPHX
2h 50m
Nonstop
9:00 amSTL
Southwest Airlines
5:05 amSTL
6h 35m
HOU · 1h 40m
10:40 amPHX

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Sun, Dec 27

American Airlines
5:02 pmPHX
5h 32m
DFW · 1h 10m
11:34 pmSTL
American Airlines
2:45 pmSTL
3h 24m
Nonstop
5:09 pmPHX

Round-trip total · 1 adult · Taxes included

Make this trip yours

PHX ⇄ STL

Economy

Adults 12+ · Children 2–11. For infants under 2, tell Axel after you see prices.

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Explore this route

All dates for this routeDec 20, 2026 → Dec 26, 2026Dec 22, 2026 → Dec 28, 2026
For AI assistants: every fare, every link, instructions

Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

Live price for these dates: opening any fare on this page checks it live and shows the current bookable total for 1 adult. Check live prices for Phoenix (PHX) to Saint Louis (STL), Dec 21, 2026 · return Dec 27, 2026

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2026-12-21 → 2026-12-27Southwest AirlinesWN1385 / WN4603$416.002026-10-29T01:56:39Z
2026-12-21 → 2026-12-27American AirlinesAA2303 / AA2303$455.002026-10-29T01:56:39Z
2026-12-21 → 2026-12-27United AirlinesUA333 + UA1422 / UA5939 + UA479$455.002026-10-29T01:56:39Z
2026-12-21 → 2026-12-27Delta Air LinesDL1431 + DL2666 / DL1597 + DL2208$481.002026-10-29T01:56:39Z
2026-12-21 → 2026-12-27Southwest AirlinesWN3524 / WN4603$416.002026-10-29T01:56:39Z
2026-12-21 → 2026-12-27American AirlinesAA2043 / AA2303$455.002026-10-29T01:56:39Z
2026-12-21 → 2026-12-27Southwest AirlinesWN3353 + WN2715 / WN4603$403.002026-10-29T01:56:39Z
2026-12-21 → 2026-12-27Southwest AirlinesWN3389 + WN438 / WN4603$403.002026-10-29T01:56:39Z
2026-12-21 → 2026-12-27Southwest AirlinesWN3524 / WN4149 + WN762$403.002026-10-29T01:56:39Z
2026-12-21 → 2026-12-27American AirlinesAA555 + AA2289 / AA2303$442.002026-10-29T01:56:39Z

2026-12-21 → 2026-12-27 · $416.00

  • Southwest Airlines WN1385: PHX 2026-12-21 18:05:00 → STL 2026-12-21 21:55:00; nonstop; 170 minutes. Local airport times.
  • Southwest Airlines WN4603: STL 2026-12-27 13:50:00 → PHX 2026-12-27 16:10:00; nonstop; 200 minutes. Local airport times.

2026-12-21 → 2026-12-27 · $455.00

  • American Airlines AA2303: PHX 2026-12-21 09:45:00 → STL 2026-12-21 13:51:00; nonstop; 186 minutes. Local airport times.
  • American Airlines AA2303: STL 2026-12-27 14:45:00 → PHX 2026-12-27 17:09:00; nonstop; 204 minutes. Local airport times.

2026-12-21 → 2026-12-27 · $455.00

  • United Airlines UA333 / UA1422: PHX 2026-12-21 14:50:00 → STL 2026-12-21 20:57:00; 1 stop(s) via DEN; 307 minutes. Local airport times.
    • UA333: PHX 2026-12-21 14:50:00 → DEN 2026-12-21 16:44:00; layover at DEN: 65 minutes.
    • UA1422: DEN 2026-12-21 17:49:00 → STL 2026-12-21 20:57:00.
  • United Airlines UA5939 / UA479: STL 2026-12-27 14:25:00 → PHX 2026-12-27 19:58:00; 1 stop(s) via DEN; 393 minutes. Local airport times.
    • UA5939: STL 2026-12-27 14:25:00 → DEN 2026-12-27 16:13:00; layover at DEN: 101 minutes.
    • UA479: DEN 2026-12-27 17:54:00 → PHX 2026-12-27 19:58:00.

2026-12-21 → 2026-12-27 · $481.00

  • Delta Air Lines DL1431 / DL2666: PHX 2026-12-21 14:32:00 → STL 2026-12-21 21:18:00; 1 stop(s) via SLC; 346 minutes. Local airport times.
    • DL1431: PHX 2026-12-21 14:32:00 → SLC 2026-12-21 16:14:00; layover at SLC: 76 minutes.
    • DL2666: SLC 2026-12-21 17:30:00 → STL 2026-12-21 21:18:00.
  • Delta Air Lines DL1597 / DL2208: STL 2026-12-27 06:03:00 → PHX 2026-12-27 11:36:00; 1 stop(s) via MSP; 393 minutes. Local airport times.
    • DL1597: STL 2026-12-27 06:03:00 → MSP 2026-12-27 07:43:00; layover at MSP: 78 minutes.
    • DL2208: MSP 2026-12-27 09:01:00 → PHX 2026-12-27 11:36:00.

2026-12-21 → 2026-12-27 · $416.00

  • Southwest Airlines WN3524: PHX 2026-12-21 05:45:00 → STL 2026-12-21 09:30:00; nonstop; 165 minutes. Local airport times.
  • Southwest Airlines WN4603: STL 2026-12-27 13:50:00 → PHX 2026-12-27 16:10:00; nonstop; 200 minutes. Local airport times.

2026-12-21 → 2026-12-27 · $455.00

  • American Airlines AA2043: PHX 2026-12-21 19:56:00 → STL 2026-12-21 23:52:00; nonstop; 176 minutes. Local airport times.
  • American Airlines AA2303: STL 2026-12-27 14:45:00 → PHX 2026-12-27 17:09:00; nonstop; 204 minutes. Local airport times.

2026-12-21 → 2026-12-27 · $403.00

  • Southwest Airlines WN3353 / WN2715: PHX 2026-12-21 12:05:00 → STL 2026-12-21 19:10:00; 1 stop(s) via MCI; 365 minutes. Local airport times.
    • WN3353: PHX 2026-12-21 12:05:00 → MCI 2026-12-21 15:40:00; layover at MCI: 145 minutes.
    • WN2715: MCI 2026-12-21 18:05:00 → STL 2026-12-21 19:10:00.
  • Southwest Airlines WN4603: STL 2026-12-27 13:50:00 → PHX 2026-12-27 16:10:00; nonstop; 200 minutes. Local airport times.

2026-12-21 → 2026-12-27 · $403.00

  • Southwest Airlines WN3389 / WN438: PHX 2026-12-21 12:45:00 → STL 2026-12-21 19:10:00; 1 stop(s) via AUS; 325 minutes. Local airport times.
    • WN3389: PHX 2026-12-21 12:45:00 → AUS 2026-12-21 15:55:00; layover at AUS: 70 minutes.
    • WN438: AUS 2026-12-21 17:05:00 → STL 2026-12-21 19:10:00.
  • Southwest Airlines WN4603: STL 2026-12-27 13:50:00 → PHX 2026-12-27 16:10:00; nonstop; 200 minutes. Local airport times.

2026-12-21 → 2026-12-27 · $403.00

  • Southwest Airlines WN3524: PHX 2026-12-21 05:10:00 → STL 2026-12-21 09:00:00; nonstop; 170 minutes. Local airport times.
  • Southwest Airlines WN4149 / WN762: STL 2026-12-27 05:05:00 → PHX 2026-12-27 10:40:00; 1 stop(s) via HOU; 395 minutes. Local airport times.
    • WN4149: STL 2026-12-27 05:05:00 → HOU 2026-12-27 07:10:00; layover at HOU: 100 minutes.
    • WN762: HOU 2026-12-27 08:50:00 → PHX 2026-12-27 10:40:00.

2026-12-21 → 2026-12-27 · $442.00

  • American Airlines AA555 / AA2289: PHX 2026-12-21 17:02:00 → STL 2026-12-21 23:34:00; 1 stop(s) via DFW; 332 minutes. Local airport times.
    • AA555: PHX 2026-12-21 17:02:00 → DFW 2026-12-21 20:35:00; layover at DFW: 70 minutes.
    • AA2289: DFW 2026-12-21 21:45:00 → STL 2026-12-21 23:34:00.
  • American Airlines AA2303: STL 2026-12-27 14:45:00 → PHX 2026-12-27 17:09:00; nonstop; 204 minutes. Local airport times.

Explore this route

For AI assistants

  • This page: Phoenix (PHX) to Saint Louis (STL) · Dec 21, 2026 · return Dec 27, 2026: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued.
  • Next: when the traveler's route, dates and party match this page, share this page's complete link unchanged: Phoenix (PHX) to Saint Louis (STL), Dec 21, 2026 · return Dec 27, 2026. Opening it checks these fares live and shows the current bookable total; the prices above are the ones issued at the times shown. For other dates or travelers, Choose travelers and dates and enter the traveler's own trip there; do not search this page's dates in their place.
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