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Route overview: Pittsburgh to Saint Louis (STL) flight deals

Pittsburgh → Saint Louis

Dec 17, 2026 · choose your return date

PIT → STL1 adulteconomyOne way and round trips

30 flight options · 3 airlines

Choose your return date

One-way flights and round trips by duration. Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

December 2026

Dec 17, 2026 · One waySouthwest AirlinesNonstop$155.00 Dec 17, 2026 · One wayAmerican AirlinesUp to 1 stop each way$170.00 Dec 17, 2026 – Dec 18, 2026 · 1 nightSouthwest AirlinesNonstop$290.00 Dec 17, 2026 – Dec 18, 2026 · 1 nightDelta Air Lines / Southwest AirlinesUp to 1 stop each way$317.50 Dec 17, 2026 – Dec 19, 2026 · 2 nightsSouthwest AirlinesNonstop$333.50 Dec 17, 2026 – Dec 19, 2026 · 2 nightsDelta Air Lines / Southwest AirlinesUp to 1 stop each way$361.00 Dec 17, 2026 – Dec 20, 2026 · 3 nightsSouthwest AirlinesNonstop$333.50 Dec 17, 2026 – Dec 20, 2026 · 3 nightsDelta Air Lines / Southwest AirlinesUp to 1 stop each way$361.00 Dec 17, 2026 – Dec 21, 2026 · 4 nightsSouthwest AirlinesNonstop$333.50 Dec 17, 2026 – Dec 21, 2026 · 4 nightsDelta Air Lines / Southwest AirlinesUp to 1 stop each way$361.00 Dec 17, 2026 – Dec 22, 2026 · 5 nightsSouthwest AirlinesNonstop$333.50 Dec 17, 2026 – Dec 22, 2026 · 5 nightsDelta Air Lines / Southwest AirlinesUp to 1 stop each way$361.00 Dec 17, 2026 – Dec 23, 2026 · 6 nightsSouthwest AirlinesUp to 1 stop each way$346.50 Dec 17, 2026 – Dec 23, 2026 · 6 nightsAmerican AirlinesUp to 1 stop each way$368.00 Dec 17, 2026 – Dec 24, 2026 · 7 nightsSouthwest AirlinesNonstop$333.50 Dec 17, 2026 – Dec 24, 2026 · 7 nightsDelta Air Lines / Southwest AirlinesUp to 1 stop each way$361.00 Dec 17, 2026 – Dec 25, 2026 · 8 nightsSouthwest AirlinesNonstop$333.50 Dec 17, 2026 – Dec 25, 2026 · 8 nightsDelta Air Lines / Southwest AirlinesUp to 1 stop each way$361.00 Dec 17, 2026 – Dec 26, 2026 · 9 nightsSouthwest AirlinesNonstop$333.50 Dec 17, 2026 – Dec 26, 2026 · 9 nightsDelta Air Lines / Southwest AirlinesUp to 1 stop each way$361.00 Dec 17, 2026 – Dec 27, 2026 · 10 nightsSouthwest AirlinesNonstop$333.50 Dec 17, 2026 – Dec 27, 2026 · 10 nightsDelta Air Lines / Southwest AirlinesUp to 1 stop each way$361.00 Dec 17, 2026 – Dec 28, 2026 · 11 nightsSouthwest AirlinesNonstop$326.25 Dec 17, 2026 – Dec 28, 2026 · 11 nightsDelta Air Lines / Southwest AirlinesUp to 1 stop each way$353.75 Dec 17, 2026 – Dec 29, 2026 · 12 nightsSouthwest AirlinesNonstop$326.25 Dec 17, 2026 – Dec 29, 2026 · 12 nightsDelta Air Lines / Southwest AirlinesUp to 1 stop each way$353.75 Dec 17, 2026 – Dec 30, 2026 · 13 nightsSouthwest AirlinesUp to 1 stop each way$338.75 Dec 17, 2026 – Dec 30, 2026 · 13 nightsAmerican AirlinesUp to 1 stop each way$360.00 Dec 17, 2026 – Dec 31, 2026 · 14 nightsSouthwest AirlinesNonstop$326.25 Dec 17, 2026 – Dec 31, 2026 · 14 nightsDelta Air Lines / Southwest AirlinesUp to 1 stop each way$353.75

Flights for your trip

  1. Thu, Dec 17 · One way

    Southwest Airlines
    5:55 amPIT
    2h
    Nonstop
    6:55 amSTL

    One-way total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  2. Thu, Dec 17 · One way

    American Airlines
    7:15 pmPIT
    5h 43m
    CLT · 2h 6m
    11:58 pmSTL

    One-way total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  3. Thu, Dec 17 – Fri, Dec 18

    Southwest Airlines
    5:55 amPIT
    2h
    Nonstop
    6:55 amSTL
    Southwest Airlines
    10:15 amSTL
    1h 30m
    Nonstop
    12:45 pmPIT

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  4. Thu, Dec 17 – Fri, Dec 18

    Delta Air Lines
    6:10 amPIT
    4h 55m
    DTW · 1h 49m
    10:05 amSTL
    Southwest Airlines
    10:15 amSTL
    1h 30m
    Nonstop
    12:45 pmPIT

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  5. Thu, Dec 17 – Sat, Dec 19

    Southwest Airlines
    5:55 amPIT
    2h
    Nonstop
    6:55 amSTL
    Southwest Airlines
    9:50 amSTL
    1h 35m
    Nonstop
    12:25 pmPIT

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  6. Thu, Dec 17 – Sat, Dec 19

    Delta Air Lines
    6:10 amPIT
    4h 55m
    DTW · 1h 49m
    10:05 amSTL
    Southwest Airlines
    9:50 amSTL
    1h 35m
    Nonstop
    12:25 pmPIT

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  7. Thu, Dec 17 – Sun, Dec 20

    Southwest Airlines
    5:55 amPIT
    2h
    Nonstop
    6:55 amSTL
    Southwest Airlines
    8:50 pmSTL
    1h 35m
    Nonstop
    11:25 pmPIT

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  8. Thu, Dec 17 – Sun, Dec 20

    Delta Air Lines
    6:10 amPIT
    4h 55m
    DTW · 1h 49m
    10:05 amSTL
    Southwest Airlines
    8:50 pmSTL
    1h 35m
    Nonstop
    11:25 pmPIT

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  9. Thu, Dec 17 – Mon, Dec 21

    Southwest Airlines
    5:55 amPIT
    2h
    Nonstop
    6:55 amSTL
    Southwest Airlines
    6:15 pmSTL
    1h 40m
    Nonstop
    8:55 pmPIT

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  10. Thu, Dec 17 – Mon, Dec 21

    Delta Air Lines
    6:10 amPIT
    4h 55m
    DTW · 1h 49m
    10:05 amSTL
    Southwest Airlines
    6:15 pmSTL
    1h 40m
    Nonstop
    8:55 pmPIT

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  11. Thu, Dec 17 – Wed, Dec 23

    Southwest Airlines
    5:55 amPIT
    2h
    Nonstop
    6:55 amSTL
    Southwest Airlines
    5:30 amSTL
    3h 30m
    MDW · 1h 5m
    10:00 amPIT

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  12. Thu, Dec 17 – Wed, Dec 23

    American Airlines
    7:15 pmPIT
    5h 43m
    CLT · 2h 6m
    11:58 pmSTL
    American Airlines
    11:09 amSTL
    4h 51m
    CLT · 1h 34m
    5:00 pmPIT

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  13. Thu, Dec 17 – Thu, Dec 24

    Southwest Airlines
    5:55 amPIT
    2h
    Nonstop
    6:55 amSTL
    Southwest Airlines
    6:15 pmSTL
    1h 40m
    Nonstop
    8:55 pmPIT

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  14. Thu, Dec 17 – Thu, Dec 24

    Delta Air Lines
    6:10 amPIT
    4h 55m
    DTW · 1h 49m
    10:05 amSTL
    Southwest Airlines
    6:15 pmSTL
    1h 40m
    Nonstop
    8:55 pmPIT

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  15. Thu, Dec 17 – Fri, Dec 25

    Southwest Airlines
    5:55 amPIT
    2h
    Nonstop
    6:55 amSTL
    Southwest Airlines
    10:15 amSTL
    1h 30m
    Nonstop
    12:45 pmPIT

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  16. Thu, Dec 17 – Fri, Dec 25

    Delta Air Lines
    6:10 amPIT
    4h 55m
    DTW · 1h 49m
    10:05 amSTL
    Southwest Airlines
    10:15 amSTL
    1h 30m
    Nonstop
    12:45 pmPIT

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  17. Thu, Dec 17 – Sun, Dec 27

    Southwest Airlines
    5:55 amPIT
    2h
    Nonstop
    6:55 amSTL
    Southwest Airlines
    8:50 pmSTL
    1h 35m
    Nonstop
    11:25 pmPIT

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  18. Thu, Dec 17 – Sun, Dec 27

    Delta Air Lines
    6:10 amPIT
    4h 55m
    DTW · 1h 49m
    10:05 amSTL
    Southwest Airlines
    8:50 pmSTL
    1h 35m
    Nonstop
    11:25 pmPIT

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  19. Thu, Dec 17 – Mon, Dec 28

    Southwest Airlines
    5:55 amPIT
    2h
    Nonstop
    6:55 amSTL
    Southwest Airlines
    6:15 pmSTL
    1h 40m
    Nonstop
    8:55 pmPIT

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  20. Thu, Dec 17 – Mon, Dec 28

    Delta Air Lines
    6:10 amPIT
    4h 55m
    DTW · 1h 49m
    10:05 amSTL
    Southwest Airlines
    6:15 pmSTL
    1h 40m
    Nonstop
    8:55 pmPIT

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  21. Thu, Dec 17 – Tue, Dec 29

    Southwest Airlines
    5:55 amPIT
    2h
    Nonstop
    6:55 amSTL
    Southwest Airlines
    6:15 pmSTL
    1h 40m
    Nonstop
    8:55 pmPIT

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  22. Thu, Dec 17 – Tue, Dec 29

    Delta Air Lines
    6:10 amPIT
    4h 55m
    DTW · 1h 49m
    10:05 amSTL
    Southwest Airlines
    6:15 pmSTL
    1h 40m
    Nonstop
    8:55 pmPIT

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  23. Thu, Dec 17 – Thu, Dec 31

    Southwest Airlines
    5:55 amPIT
    2h
    Nonstop
    6:55 amSTL
    Southwest Airlines
    6:15 pmSTL
    1h 40m
    Nonstop
    8:55 pmPIT

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  24. Thu, Dec 17 – Thu, Dec 31

    Delta Air Lines
    6:10 amPIT
    4h 55m
    DTW · 1h 49m
    10:05 amSTL
    Southwest Airlines
    6:15 pmSTL
    1h 40m
    Nonstop
    8:55 pmPIT

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

Swipe to see 23 more recent deals.

1 of 24

Make this trip yours

PIT ⇄ 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 16, 2026 · Return optionsDec 18, 2026 · Return optionsHotels in St. Louis with Axel
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.

Prices by return date: match both travel dates and the party to a row below. Each total is for that exact trip, issued at the time shown. To book or select flights, follow that row's price link; it keeps the exact dates and travelers.

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2026-12-17 · one waySouthwest AirlinesWN3561Axel-exclusive $155.002026-10-29T01:57:14Z
2026-12-17 · one wayAmerican AirlinesAA3241 + AA2562Axel-exclusive $170.002026-10-29T01:57:14Z
2026-12-17 → 2026-12-18Southwest AirlinesWN3561 / WN4930Axel-exclusive $290.002026-10-29T01:57:14Z
2026-12-17 → 2026-12-18Delta Air Lines / Southwest AirlinesDL3857 + DL5395 / WN4930Axel-exclusive $317.502026-10-29T01:57:14Z
2026-12-17 → 2026-12-19Southwest AirlinesWN3561 / WN4930Axel-exclusive $333.502026-10-29T01:57:14Z
2026-12-17 → 2026-12-19Delta Air Lines / Southwest AirlinesDL3857 + DL5395 / WN4930Axel-exclusive $361.002026-10-29T01:57:14Z
2026-12-17 → 2026-12-20Southwest AirlinesWN3561 / WN4850Axel-exclusive $333.502026-10-29T01:57:14Z
2026-12-17 → 2026-12-20Delta Air Lines / Southwest AirlinesDL3857 + DL5395 / WN4850Axel-exclusive $361.002026-10-29T01:57:14Z
2026-12-17 → 2026-12-21Southwest AirlinesWN3561 / WN4850Axel-exclusive $333.502026-10-29T01:57:14Z
2026-12-17 → 2026-12-21Delta Air Lines / Southwest AirlinesDL3857 + DL5395 / WN4850Axel-exclusive $361.002026-10-29T01:57:14Z
2026-12-17 → 2026-12-22Southwest AirlinesWN3561 / WN4850Axel-exclusive $333.502026-10-29T01:57:14Z
2026-12-17 → 2026-12-22Delta Air Lines / Southwest AirlinesDL3857 + DL5395 / WN4850Axel-exclusive $361.002026-10-29T01:57:14Z
2026-12-17 → 2026-12-23Southwest AirlinesWN3561 / WN4173 + WN3002Axel-exclusive $346.502026-10-29T01:57:14Z
2026-12-17 → 2026-12-23American AirlinesAA3241 + AA2562 / AA2486 + AA1335Axel-exclusive $368.002026-10-29T01:57:14Z
2026-12-17 → 2026-12-24Southwest AirlinesWN3561 / WN4850Axel-exclusive $333.502026-10-29T01:57:14Z
2026-12-17 → 2026-12-24Delta Air Lines / Southwest AirlinesDL3857 + DL5395 / WN4850Axel-exclusive $361.002026-10-29T01:57:14Z
2026-12-17 → 2026-12-25Southwest AirlinesWN3561 / WN4930Axel-exclusive $333.502026-10-29T01:57:14Z
2026-12-17 → 2026-12-25Delta Air Lines / Southwest AirlinesDL3857 + DL5395 / WN4930Axel-exclusive $361.002026-10-29T01:57:14Z
2026-12-17 → 2026-12-26Southwest AirlinesWN3561 / WN4930Axel-exclusive $333.502026-10-29T01:57:14Z
2026-12-17 → 2026-12-26Delta Air Lines / Southwest AirlinesDL3857 + DL5395 / WN4930Axel-exclusive $361.002026-10-29T01:57:14Z
2026-12-17 → 2026-12-27Southwest AirlinesWN3561 / WN4850Axel-exclusive $333.502026-10-29T01:57:14Z
2026-12-17 → 2026-12-27Delta Air Lines / Southwest AirlinesDL3857 + DL5395 / WN4850Axel-exclusive $361.002026-10-29T01:57:14Z
2026-12-17 → 2026-12-28Southwest AirlinesWN3561 / WN4850Axel-exclusive $326.252026-10-29T01:57:14Z
2026-12-17 → 2026-12-28Delta Air Lines / Southwest AirlinesDL3857 + DL5395 / WN4850Axel-exclusive $353.752026-10-29T01:57:14Z
2026-12-17 → 2026-12-29Southwest AirlinesWN3561 / WN4850Axel-exclusive $326.252026-10-29T01:57:14Z
2026-12-17 → 2026-12-29Delta Air Lines / Southwest AirlinesDL3857 + DL5395 / WN4850Axel-exclusive $353.752026-10-29T01:57:14Z
2026-12-17 → 2026-12-30Southwest AirlinesWN3561 / WN4173 + WN3002Axel-exclusive $338.752026-10-29T01:57:14Z
2026-12-17 → 2026-12-30American AirlinesAA3241 + AA2562 / AA2486 + AA1335Axel-exclusive $360.002026-10-29T01:57:14Z
2026-12-17 → 2026-12-31Southwest AirlinesWN3561 / WN4850Axel-exclusive $326.252026-10-29T01:57:14Z
2026-12-17 → 2026-12-31Delta Air Lines / Southwest AirlinesDL3857 + DL5395 / WN4850Axel-exclusive $353.752026-10-29T01:57:14Z

Route overview: Pittsburgh to Saint Louis (STL) flight deals

2026-12-17 · one way · Axel-exclusive $155.00

  • Southwest Airlines WN3561: PIT 2026-12-17 05:55:00 → STL 2026-12-17 06:55:00; nonstop; 120 minutes. Local airport times.

2026-12-17 · one way · Axel-exclusive $170.00

  • American Airlines AA3241 / AA2562: PIT 2026-12-17 19:15:00 → STL 2026-12-17 23:58:00; 1 stop(s) via CLT; 343 minutes. Local airport times.
    • AA3241: PIT 2026-12-17 19:15:00 → CLT 2026-12-17 20:45:00; layover at CLT: 126 minutes.
    • AA2562: CLT 2026-12-17 22:51:00 → STL 2026-12-17 23:58:00.

2026-12-17 → 2026-12-18 · Axel-exclusive $290.00

  • Southwest Airlines WN3561: PIT 2026-12-17 05:55:00 → STL 2026-12-17 06:55:00; nonstop; 120 minutes. Local airport times.
  • Southwest Airlines WN4930: STL 2026-12-18 10:15:00 → PIT 2026-12-18 12:45:00; nonstop; 90 minutes. Local airport times.

2026-12-17 → 2026-12-18 · Axel-exclusive $317.50

  • Delta Air Lines DL3857 / DL5395: PIT 2026-12-17 06:10:00 → STL 2026-12-17 10:05:00; 1 stop(s) via DTW; 295 minutes. Local airport times.
    • DL3857: PIT 2026-12-17 06:10:00 → DTW 2026-12-17 07:26:00; layover at DTW: 109 minutes.
    • DL5395: DTW 2026-12-17 09:15:00 → STL 2026-12-17 10:05:00.
  • Southwest Airlines WN4930: STL 2026-12-18 10:15:00 → PIT 2026-12-18 12:45:00; nonstop; 90 minutes. Local airport times.

2026-12-17 → 2026-12-19 · Axel-exclusive $333.50

  • Southwest Airlines WN3561: PIT 2026-12-17 05:55:00 → STL 2026-12-17 06:55:00; nonstop; 120 minutes. Local airport times.
  • Southwest Airlines WN4930: STL 2026-12-19 09:50:00 → PIT 2026-12-19 12:25:00; nonstop; 95 minutes. Local airport times.

2026-12-17 → 2026-12-19 · Axel-exclusive $361.00

  • Delta Air Lines DL3857 / DL5395: PIT 2026-12-17 06:10:00 → STL 2026-12-17 10:05:00; 1 stop(s) via DTW; 295 minutes. Local airport times.
    • DL3857: PIT 2026-12-17 06:10:00 → DTW 2026-12-17 07:26:00; layover at DTW: 109 minutes.
    • DL5395: DTW 2026-12-17 09:15:00 → STL 2026-12-17 10:05:00.
  • Southwest Airlines WN4930: STL 2026-12-19 09:50:00 → PIT 2026-12-19 12:25:00; nonstop; 95 minutes. Local airport times.

2026-12-17 → 2026-12-20 · Axel-exclusive $333.50

  • Southwest Airlines WN3561: PIT 2026-12-17 05:55:00 → STL 2026-12-17 06:55:00; nonstop; 120 minutes. Local airport times.
  • Southwest Airlines WN4850: STL 2026-12-20 20:50:00 → PIT 2026-12-20 23:25:00; nonstop; 95 minutes. Local airport times.

2026-12-17 → 2026-12-20 · Axel-exclusive $361.00

  • Delta Air Lines DL3857 / DL5395: PIT 2026-12-17 06:10:00 → STL 2026-12-17 10:05:00; 1 stop(s) via DTW; 295 minutes. Local airport times.
    • DL3857: PIT 2026-12-17 06:10:00 → DTW 2026-12-17 07:26:00; layover at DTW: 109 minutes.
    • DL5395: DTW 2026-12-17 09:15:00 → STL 2026-12-17 10:05:00.
  • Southwest Airlines WN4850: STL 2026-12-20 20:50:00 → PIT 2026-12-20 23:25:00; nonstop; 95 minutes. Local airport times.

2026-12-17 → 2026-12-21 · Axel-exclusive $333.50

  • Southwest Airlines WN3561: PIT 2026-12-17 05:55:00 → STL 2026-12-17 06:55:00; nonstop; 120 minutes. Local airport times.
  • Southwest Airlines WN4850: STL 2026-12-21 18:15:00 → PIT 2026-12-21 20:55:00; nonstop; 100 minutes. Local airport times.

2026-12-17 → 2026-12-21 · Axel-exclusive $361.00

  • Delta Air Lines DL3857 / DL5395: PIT 2026-12-17 06:10:00 → STL 2026-12-17 10:05:00; 1 stop(s) via DTW; 295 minutes. Local airport times.
    • DL3857: PIT 2026-12-17 06:10:00 → DTW 2026-12-17 07:26:00; layover at DTW: 109 minutes.
    • DL5395: DTW 2026-12-17 09:15:00 → STL 2026-12-17 10:05:00.
  • Southwest Airlines WN4850: STL 2026-12-21 18:15:00 → PIT 2026-12-21 20:55:00; nonstop; 100 minutes. Local airport times.

2026-12-17 → 2026-12-23 · Axel-exclusive $346.50

  • Southwest Airlines WN3561: PIT 2026-12-17 05:55:00 → STL 2026-12-17 06:55:00; nonstop; 120 minutes. Local airport times.
  • Southwest Airlines WN4173 / WN3002: STL 2026-12-23 05:30:00 → PIT 2026-12-23 10:00:00; 1 stop(s) via MDW; 210 minutes. Local airport times.
    • WN4173: STL 2026-12-23 05:30:00 → MDW 2026-12-23 06:35:00; layover at MDW: 65 minutes.
    • WN3002: MDW 2026-12-23 07:40:00 → PIT 2026-12-23 10:00:00.

2026-12-17 → 2026-12-23 · Axel-exclusive $368.00

  • American Airlines AA3241 / AA2562: PIT 2026-12-17 19:15:00 → STL 2026-12-17 23:58:00; 1 stop(s) via CLT; 343 minutes. Local airport times.
    • AA3241: PIT 2026-12-17 19:15:00 → CLT 2026-12-17 20:45:00; layover at CLT: 126 minutes.
    • AA2562: CLT 2026-12-17 22:51:00 → STL 2026-12-17 23:58:00.
  • American Airlines AA2486 / AA1335: STL 2026-12-23 11:09:00 → PIT 2026-12-23 17:00:00; 1 stop(s) via CLT; 291 minutes. Local airport times.
    • AA2486: STL 2026-12-23 11:09:00 → CLT 2026-12-23 14:00:00; layover at CLT: 94 minutes.
    • AA1335: CLT 2026-12-23 15:34:00 → PIT 2026-12-23 17:00:00.

2026-12-17 → 2026-12-24 · Axel-exclusive $333.50

  • Southwest Airlines WN3561: PIT 2026-12-17 05:55:00 → STL 2026-12-17 06:55:00; nonstop; 120 minutes. Local airport times.
  • Southwest Airlines WN4850: STL 2026-12-24 18:15:00 → PIT 2026-12-24 20:55:00; nonstop; 100 minutes. Local airport times.

2026-12-17 → 2026-12-24 · Axel-exclusive $361.00

  • Delta Air Lines DL3857 / DL5395: PIT 2026-12-17 06:10:00 → STL 2026-12-17 10:05:00; 1 stop(s) via DTW; 295 minutes. Local airport times.
    • DL3857: PIT 2026-12-17 06:10:00 → DTW 2026-12-17 07:26:00; layover at DTW: 109 minutes.
    • DL5395: DTW 2026-12-17 09:15:00 → STL 2026-12-17 10:05:00.
  • Southwest Airlines WN4850: STL 2026-12-24 18:15:00 → PIT 2026-12-24 20:55:00; nonstop; 100 minutes. Local airport times.

2026-12-17 → 2026-12-25 · Axel-exclusive $333.50

  • Southwest Airlines WN3561: PIT 2026-12-17 05:55:00 → STL 2026-12-17 06:55:00; nonstop; 120 minutes. Local airport times.
  • Southwest Airlines WN4930: STL 2026-12-25 10:15:00 → PIT 2026-12-25 12:45:00; nonstop; 90 minutes. Local airport times.

2026-12-17 → 2026-12-25 · Axel-exclusive $361.00

  • Delta Air Lines DL3857 / DL5395: PIT 2026-12-17 06:10:00 → STL 2026-12-17 10:05:00; 1 stop(s) via DTW; 295 minutes. Local airport times.
    • DL3857: PIT 2026-12-17 06:10:00 → DTW 2026-12-17 07:26:00; layover at DTW: 109 minutes.
    • DL5395: DTW 2026-12-17 09:15:00 → STL 2026-12-17 10:05:00.
  • Southwest Airlines WN4930: STL 2026-12-25 10:15:00 → PIT 2026-12-25 12:45:00; nonstop; 90 minutes. Local airport times.

2026-12-17 → 2026-12-27 · Axel-exclusive $333.50

  • Southwest Airlines WN3561: PIT 2026-12-17 05:55:00 → STL 2026-12-17 06:55:00; nonstop; 120 minutes. Local airport times.
  • Southwest Airlines WN4850: STL 2026-12-27 20:50:00 → PIT 2026-12-27 23:25:00; nonstop; 95 minutes. Local airport times.

2026-12-17 → 2026-12-27 · Axel-exclusive $361.00

  • Delta Air Lines DL3857 / DL5395: PIT 2026-12-17 06:10:00 → STL 2026-12-17 10:05:00; 1 stop(s) via DTW; 295 minutes. Local airport times.
    • DL3857: PIT 2026-12-17 06:10:00 → DTW 2026-12-17 07:26:00; layover at DTW: 109 minutes.
    • DL5395: DTW 2026-12-17 09:15:00 → STL 2026-12-17 10:05:00.
  • Southwest Airlines WN4850: STL 2026-12-27 20:50:00 → PIT 2026-12-27 23:25:00; nonstop; 95 minutes. Local airport times.

2026-12-17 → 2026-12-28 · Axel-exclusive $326.25

  • Southwest Airlines WN3561: PIT 2026-12-17 05:55:00 → STL 2026-12-17 06:55:00; nonstop; 120 minutes. Local airport times.
  • Southwest Airlines WN4850: STL 2026-12-28 18:15:00 → PIT 2026-12-28 20:55:00; nonstop; 100 minutes. Local airport times.

2026-12-17 → 2026-12-28 · Axel-exclusive $353.75

  • Delta Air Lines DL3857 / DL5395: PIT 2026-12-17 06:10:00 → STL 2026-12-17 10:05:00; 1 stop(s) via DTW; 295 minutes. Local airport times.
    • DL3857: PIT 2026-12-17 06:10:00 → DTW 2026-12-17 07:26:00; layover at DTW: 109 minutes.
    • DL5395: DTW 2026-12-17 09:15:00 → STL 2026-12-17 10:05:00.
  • Southwest Airlines WN4850: STL 2026-12-28 18:15:00 → PIT 2026-12-28 20:55:00; nonstop; 100 minutes. Local airport times.

2026-12-17 → 2026-12-29 · Axel-exclusive $326.25

  • Southwest Airlines WN3561: PIT 2026-12-17 05:55:00 → STL 2026-12-17 06:55:00; nonstop; 120 minutes. Local airport times.
  • Southwest Airlines WN4850: STL 2026-12-29 18:15:00 → PIT 2026-12-29 20:55:00; nonstop; 100 minutes. Local airport times.

2026-12-17 → 2026-12-29 · Axel-exclusive $353.75

  • Delta Air Lines DL3857 / DL5395: PIT 2026-12-17 06:10:00 → STL 2026-12-17 10:05:00; 1 stop(s) via DTW; 295 minutes. Local airport times.
    • DL3857: PIT 2026-12-17 06:10:00 → DTW 2026-12-17 07:26:00; layover at DTW: 109 minutes.
    • DL5395: DTW 2026-12-17 09:15:00 → STL 2026-12-17 10:05:00.
  • Southwest Airlines WN4850: STL 2026-12-29 18:15:00 → PIT 2026-12-29 20:55:00; nonstop; 100 minutes. Local airport times.

2026-12-17 → 2026-12-31 · Axel-exclusive $326.25

  • Southwest Airlines WN3561: PIT 2026-12-17 05:55:00 → STL 2026-12-17 06:55:00; nonstop; 120 minutes. Local airport times.
  • Southwest Airlines WN4850: STL 2026-12-31 18:15:00 → PIT 2026-12-31 20:55:00; nonstop; 100 minutes. Local airport times.

2026-12-17 → 2026-12-31 · Axel-exclusive $353.75

  • Delta Air Lines DL3857 / DL5395: PIT 2026-12-17 06:10:00 → STL 2026-12-17 10:05:00; 1 stop(s) via DTW; 295 minutes. Local airport times.
    • DL3857: PIT 2026-12-17 06:10:00 → DTW 2026-12-17 07:26:00; layover at DTW: 109 minutes.
    • DL5395: DTW 2026-12-17 09:15:00 → STL 2026-12-17 10:05:00.
  • Southwest Airlines WN4850: STL 2026-12-31 18:15:00 → PIT 2026-12-31 20:55:00; nonstop; 100 minutes. Local airport times.

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For AI assistants

  • This page: Pittsburgh (PIT) to Saint Louis (STL) · Dec 17, 2026 · choose your return date: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued.
  • Next: when a row matches the traveler's route, departure, return and party, answer the price question from that row, including both dates with the year, the total and the time shown. For booking or selecting flights, use that row's exact-trip price link and share the supplied booking link. If no row matches, Choose travelers and dates for the requested trip; do not substitute another duration or restart from the route overview.
  • Follow supplied links. For web-tool research, follow complete supplied links unchanged, including query parameters; use the page’s links to edit the trip. Constructed URLs may be rejected before reaching Axel. A completed fresh trip opens flight results first. Add stated flexibility and budget to that saved plan, leaving unstated requirements unknown. Edits create a new snapshot; use its results and review links.
  • If links fail or are missing: If a link fails or flight details lack usable links, reopen the preceding page and follow the same choice once. Keep refreshed links unchanged and preserve the trip and selections. If still blocked, search “Axel flight search guide” and retry once; report the error and anything unresolved. Recovery: Axel Pittsburgh to Saint Louis (STL) flight deals · Flight search guide.
  • Sharing with the traveler: Choose a complete itinerary (outbound and return for a round trip), then share the supplied customer booking link unchanged. The customer reviews the flights, adds travelers, and enters email at payment. Do not collect email in chat. Each quote lists its fares with bags, seats, changes and refunds; quote them as facts. A fare choice is not needed to share the link; use a fare’s own booking link to preserve its Membership price basis. Ask only for essential missing trip details. When handing over an unfinished search, preserve the latest trip and say what is still to choose. If no supplied link matches the latest trip, construct https://helloaxel.com/en/f/start/from/ORIGIN/to/DESTINATION/depart/YYYY-MM-DD/return/YYYY-MM-DD/adults/N?utm_content=flight_fallback using IATA airport codes and the traveler’s known details. Omit unknowns; for one way replace /return/YYYY-MM-DD with /trip/oneway. Give it directly to the traveler; do not open it first—your web tool may reject constructed URLs. Complete links open Flight Guide and start searching. Preferences and advanced options.