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Route overview: Saint Louis to Philadelphia (PHL) flight deals

Saint Louis → Philadelphia

Jun 30, 2027 · choose your return date

STL → PHL1 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.

June 2027

Jun 30, 2027 · One waySouthwest AirlinesUp to 1 stop each way$175.00 Jun 30, 2027 · One wayAmerican AirlinesNonstop$210.00 Jun 30, 2027 – Jul 1, 2027 · 1 nightSouthwest AirlinesUp to 1 stop each way$383.50 Jun 30, 2027 – Jul 1, 2027 · 1 nightAmerican AirlinesNonstop$424.63 Jun 30, 2027 – Jul 2, 2027 · 2 nightsSouthwest AirlinesUp to 1 stop each way$383.50 Jun 30, 2027 – Jul 2, 2027 · 2 nightsUnited AirlinesUp to 1 stop each way$397.75 Jun 30, 2027 – Jul 3, 2027 · 3 nightsSouthwest AirlinesUp to 1 stop each way$383.50 Jun 30, 2027 – Jul 3, 2027 · 3 nightsAmerican AirlinesNonstop$424.63 Jun 30, 2027 – Jul 4, 2027 · 4 nightsSouthwest AirlinesUp to 1 stop each way$383.50 Jun 30, 2027 – Jul 4, 2027 · 4 nightsAmerican AirlinesNonstop$424.63 Jun 30, 2027 – Jul 5, 2027 · 5 nightsSouthwest AirlinesUp to 1 stop each way$383.50 Jun 30, 2027 – Jul 5, 2027 · 5 nightsAmerican AirlinesNonstop$424.63 Jun 30, 2027 – Jul 6, 2027 · 6 nightsSouthwest AirlinesUp to 1 stop each way$383.50 Jun 30, 2027 – Jul 6, 2027 · 6 nightsAmerican AirlinesNonstop$424.63 Jun 30, 2027 – Jul 7, 2027 · 7 nightsSouthwest AirlinesUp to 1 stop each way$355.00 Jun 30, 2027 – Jul 7, 2027 · 7 nightsAmerican AirlinesNonstop$395.00 Jun 30, 2027 – Jul 8, 2027 · 8 nightsSouthwest AirlinesUp to 1 stop each way$355.00 Jun 30, 2027 – Jul 8, 2027 · 8 nightsAmerican AirlinesNonstop$395.00 Jun 30, 2027 – Jul 9, 2027 · 9 nightsSouthwest AirlinesUp to 1 stop each way$355.00 Jun 30, 2027 – Jul 9, 2027 · 9 nightsUnited AirlinesUp to 1 stop each way$370.00 Jun 30, 2027 – Jul 10, 2027 · 10 nightsSouthwest AirlinesUp to 1 stop each way$355.00 Jun 30, 2027 – Jul 10, 2027 · 10 nightsAmerican AirlinesNonstop$395.00 Jun 30, 2027 – Jul 11, 2027 · 11 nightsSouthwest AirlinesUp to 1 stop each way$355.00 Jun 30, 2027 – Jul 11, 2027 · 11 nightsAmerican AirlinesNonstop$395.00 Jun 30, 2027 – Jul 12, 2027 · 12 nightsSouthwest AirlinesUp to 1 stop each way$355.00 Jun 30, 2027 – Jul 12, 2027 · 12 nightsAmerican AirlinesNonstop$395.00 Jun 30, 2027 – Jul 13, 2027 · 13 nightsSouthwest AirlinesUp to 1 stop each way$355.00 Jun 30, 2027 – Jul 13, 2027 · 13 nightsAmerican AirlinesNonstop$395.00 Jun 30, 2027 – Jul 14, 2027 · 14 nightsSouthwest AirlinesUp to 1 stop each way$355.00 Jun 30, 2027 – Jul 14, 2027 · 14 nightsAmerican AirlinesNonstop$395.00

Flights for your trip

  1. Wed, Jun 30 · One way

    Southwest Airlines
    5:30 amSTL
    4h 15m
    MDW · 1h 10m
    10:45 amPHL

    One-way total · 1 adult · Taxes included

  2. Wed, Jun 30 · One way

    American Airlines
    12:19 pmSTL
    2h 13m
    Nonstop
    3:32 pmPHL

    One-way total · 1 adult · Taxes included

  3. Wed, Jun 30 – Thu, Jul 1

    Southwest Airlines
    5:30 amSTL
    4h 15m
    MDW · 1h 10m
    10:45 amPHL
    Southwest Airlines
    2:45 pmPHL
    2h 35m
    Nonstop
    4:20 pmSTL

    Round-trip total · 1 adult · Taxes included

  4. Wed, Jun 30 – Thu, Jul 1

    American Airlines
    12:19 pmSTL
    2h 13m
    Nonstop
    3:32 pmPHL
    American Airlines
    8:55 pmPHL
    2h 47m
    Nonstop
    10:42 pmSTL

    Round-trip total · 1 adult · Taxes included

  5. Wed, Jun 30 – Fri, Jul 2

    Southwest Airlines
    5:30 amSTL
    4h 15m
    MDW · 1h 10m
    10:45 amPHL
    Southwest Airlines
    2:45 pmPHL
    2h 35m
    Nonstop
    4:20 pmSTL

    Round-trip total · 1 adult · Taxes included

  6. Wed, Jun 30 – Fri, Jul 2

    United Airlines
    1:23 pmSTL
    4h 39m
    IAD · 1h 17m
    7:02 pmPHL
    United Airlines
    3:05 pmPHL
    5h 30m
    IAD · 1h 42m
    7:35 pmSTL

    Round-trip total · 1 adult · Taxes included

  7. Wed, Jun 30 – Sat, Jul 3

    Southwest Airlines
    5:30 amSTL
    4h 15m
    MDW · 1h 10m
    10:45 amPHL
    Southwest Airlines
    5:25 amPHL
    2h 30m
    Nonstop
    6:55 amSTL

    Round-trip total · 1 adult · Taxes included

  8. Wed, Jun 30 – Sat, Jul 3

    American Airlines
    12:19 pmSTL
    2h 13m
    Nonstop
    3:32 pmPHL
    American Airlines
    8:55 pmPHL
    2h 47m
    Nonstop
    10:42 pmSTL

    Round-trip total · 1 adult · Taxes included

  9. Wed, Jun 30 – Sun, Jul 4

    Southwest Airlines
    5:30 amSTL
    4h 15m
    MDW · 1h 10m
    10:45 amPHL
    Southwest Airlines
    5:25 amPHL
    2h 30m
    Nonstop
    6:55 amSTL

    Round-trip total · 1 adult · Taxes included

  10. Wed, Jun 30 – Sun, Jul 4

    American Airlines
    12:19 pmSTL
    2h 13m
    Nonstop
    3:32 pmPHL
    American Airlines
    10:05 amPHL
    2h 44m
    Nonstop
    11:49 amSTL

    Round-trip total · 1 adult · Taxes included

  11. Wed, Jun 30 – Tue, Jul 6

    Southwest Airlines
    5:30 amSTL
    4h 15m
    MDW · 1h 10m
    10:45 amPHL
    Southwest Airlines
    5:25 amPHL
    2h 30m
    Nonstop
    6:55 amSTL

    Round-trip total · 1 adult · Taxes included

  12. Wed, Jun 30 – Tue, Jul 6

    American Airlines
    12:19 pmSTL
    2h 13m
    Nonstop
    3:32 pmPHL
    American Airlines
    10:19 amPHL
    2h 44m
    Nonstop
    12:03 pmSTL

    Round-trip total · 1 adult · Taxes included

  13. Wed, Jun 30 – Wed, Jul 7

    Southwest Airlines
    5:30 amSTL
    4h 15m
    MDW · 1h 10m
    10:45 amPHL
    Southwest Airlines
    2:45 pmPHL
    2h 35m
    Nonstop
    4:20 pmSTL

    Round-trip total · 1 adult · Taxes included

  14. Wed, Jun 30 – Wed, Jul 7

    American Airlines
    12:19 pmSTL
    2h 13m
    Nonstop
    3:32 pmPHL
    American Airlines
    10:35 amPHL
    2h 50m
    Nonstop
    12:25 pmSTL

    Round-trip total · 1 adult · Taxes included

  15. Wed, Jun 30 – Thu, Jul 8

    Southwest Airlines
    5:30 amSTL
    4h 15m
    MDW · 1h 10m
    10:45 amPHL
    Southwest Airlines
    2:45 pmPHL
    2h 35m
    Nonstop
    4:20 pmSTL

    Round-trip total · 1 adult · Taxes included

  16. Wed, Jun 30 – Thu, Jul 8

    American Airlines
    12:19 pmSTL
    2h 13m
    Nonstop
    3:32 pmPHL
    American Airlines
    8:55 pmPHL
    2h 47m
    Nonstop
    10:42 pmSTL

    Round-trip total · 1 adult · Taxes included

  17. Wed, Jun 30 – Sat, Jul 10

    Southwest Airlines
    5:30 amSTL
    4h 15m
    MDW · 1h 10m
    10:45 amPHL
    Southwest Airlines
    5:25 amPHL
    2h 30m
    Nonstop
    6:55 amSTL

    Round-trip total · 1 adult · Taxes included

  18. Wed, Jun 30 – Sat, Jul 10

    American Airlines
    12:19 pmSTL
    2h 13m
    Nonstop
    3:32 pmPHL
    American Airlines
    8:55 pmPHL
    2h 47m
    Nonstop
    10:42 pmSTL

    Round-trip total · 1 adult · Taxes included

  19. Wed, Jun 30 – Sun, Jul 11

    Southwest Airlines
    5:30 amSTL
    4h 15m
    MDW · 1h 10m
    10:45 amPHL
    Southwest Airlines
    5:25 amPHL
    2h 30m
    Nonstop
    6:55 amSTL

    Round-trip total · 1 adult · Taxes included

  20. Wed, Jun 30 – Sun, Jul 11

    American Airlines
    12:19 pmSTL
    2h 13m
    Nonstop
    3:32 pmPHL
    American Airlines
    10:05 amPHL
    2h 44m
    Nonstop
    11:49 amSTL

    Round-trip total · 1 adult · Taxes included

  21. Wed, Jun 30 – Mon, Jul 12

    Southwest Airlines
    5:30 amSTL
    4h 15m
    MDW · 1h 10m
    10:45 amPHL
    Southwest Airlines
    5:25 amPHL
    2h 30m
    Nonstop
    6:55 amSTL

    Round-trip total · 1 adult · Taxes included

  22. Wed, Jun 30 – Mon, Jul 12

    American Airlines
    12:19 pmSTL
    2h 13m
    Nonstop
    3:32 pmPHL
    American Airlines
    10:19 amPHL
    2h 44m
    Nonstop
    12:03 pmSTL

    Round-trip total · 1 adult · Taxes included

  23. Wed, Jun 30 – Wed, Jul 14

    Southwest Airlines
    5:30 amSTL
    4h 15m
    MDW · 1h 10m
    10:45 amPHL
    Southwest Airlines
    2:45 pmPHL
    2h 35m
    Nonstop
    4:20 pmSTL

    Round-trip total · 1 adult · Taxes included

  24. Wed, Jun 30 – Wed, Jul 14

    American Airlines
    12:19 pmSTL
    2h 13m
    Nonstop
    3:32 pmPHL
    American Airlines
    10:35 amPHL
    2h 50m
    Nonstop
    12:25 pmSTL

    Round-trip total · 1 adult · Taxes included

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1 of 24

Make this trip yours

STL ⇄ PHL

Economy

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Explore this route

All dates for this routeJun 29, 2027 · Return optionsJul 1, 2027 · Return optionsHotels in Philadelphia with Axel
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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)
2027-06-30 · one wayAmerican AirlinesAA5105Axel-exclusive $210.002026-10-29T01:28:56Z
2027-06-30 · one waySouthwest AirlinesWN4173 + WN1082Axel-exclusive $175.002026-10-29T01:28:56Z
2027-06-30 → 2027-07-01American AirlinesAA5105 / AA5536Axel-exclusive $424.632026-10-29T01:28:56Z
2027-06-30 → 2027-07-01Southwest AirlinesWN4173 + WN1082 / WN1424Axel-exclusive $383.502026-10-29T01:28:56Z
2027-06-30 → 2027-07-02Southwest AirlinesWN4173 + WN1082 / WN1424Axel-exclusive $383.502026-10-29T01:28:56Z
2027-06-30 → 2027-07-02United AirlinesUA3495 + UA4405 / UA4575 + UA4527Axel-exclusive $397.752026-10-29T01:28:56Z
2027-06-30 → 2027-07-03American AirlinesAA5105 / AA5536Axel-exclusive $424.632026-10-29T01:28:56Z
2027-06-30 → 2027-07-03Southwest AirlinesWN4173 + WN1082 / WN3375Axel-exclusive $383.502026-10-29T01:28:56Z
2027-06-30 → 2027-07-04American AirlinesAA5105 / AA5105Axel-exclusive $424.632026-10-29T01:28:56Z
2027-06-30 → 2027-07-04Southwest AirlinesWN4173 + WN1082 / WN3375Axel-exclusive $383.502026-10-29T01:28:56Z
2027-06-30 → 2027-07-05American AirlinesAA5105 / AA5105Axel-exclusive $424.632026-10-29T01:28:56Z
2027-06-30 → 2027-07-05Southwest AirlinesWN4173 + WN1082 / WN3375Axel-exclusive $383.502026-10-29T01:28:56Z
2027-06-30 → 2027-07-06American AirlinesAA5105 / AA5105Axel-exclusive $424.632026-10-29T01:28:56Z
2027-06-30 → 2027-07-06Southwest AirlinesWN4173 + WN1082 / WN3375Axel-exclusive $383.502026-10-29T01:28:56Z
2027-06-30 → 2027-07-07American AirlinesAA5105 / AA5073Axel-exclusive $395.002026-10-29T01:28:56Z
2027-06-30 → 2027-07-07Southwest AirlinesWN4173 + WN1082 / WN1424Axel-exclusive $355.002026-10-29T01:28:56Z
2027-06-30 → 2027-07-08American AirlinesAA5105 / AA5536Axel-exclusive $395.002026-10-29T01:28:56Z
2027-06-30 → 2027-07-08Southwest AirlinesWN4173 + WN1082 / WN1424Axel-exclusive $355.002026-10-29T01:28:56Z
2027-06-30 → 2027-07-09Southwest AirlinesWN4173 + WN1082 / WN1424Axel-exclusive $355.002026-10-29T01:28:56Z
2027-06-30 → 2027-07-09United AirlinesUA3495 + UA4405 / UA4575 + UA4527Axel-exclusive $370.002026-10-29T01:28:56Z
2027-06-30 → 2027-07-10American AirlinesAA5105 / AA5536Axel-exclusive $395.002026-10-29T01:28:56Z
2027-06-30 → 2027-07-10Southwest AirlinesWN4173 + WN1082 / WN3375Axel-exclusive $355.002026-10-29T01:28:56Z
2027-06-30 → 2027-07-11American AirlinesAA5105 / AA5105Axel-exclusive $395.002026-10-29T01:28:56Z
2027-06-30 → 2027-07-11Southwest AirlinesWN4173 + WN1082 / WN3375Axel-exclusive $355.002026-10-29T01:28:56Z
2027-06-30 → 2027-07-12American AirlinesAA5105 / AA5105Axel-exclusive $395.002026-10-29T01:28:56Z
2027-06-30 → 2027-07-12Southwest AirlinesWN4173 + WN1082 / WN3375Axel-exclusive $355.002026-10-29T01:28:56Z
2027-06-30 → 2027-07-13American AirlinesAA5105 / AA5105Axel-exclusive $395.002026-10-29T01:28:56Z
2027-06-30 → 2027-07-13Southwest AirlinesWN4173 + WN1082 / WN3375Axel-exclusive $355.002026-10-29T01:28:56Z
2027-06-30 → 2027-07-14American AirlinesAA5105 / AA5073Axel-exclusive $395.002026-10-29T01:28:56Z
2027-06-30 → 2027-07-14Southwest AirlinesWN4173 + WN1082 / WN1424Axel-exclusive $355.002026-10-29T01:28:56Z

Route overview: Saint Louis to Philadelphia (PHL) flight deals

2027-06-30 · one way · Axel-exclusive $175.00

  • Southwest Airlines WN4173 / WN1082: STL 2027-06-30 05:30:00 → PHL 2027-06-30 10:45:00; 1 stop(s) via MDW; 255 minutes. Local airport times.
    • WN4173: STL 2027-06-30 05:30:00 → MDW 2027-06-30 06:35:00; layover at MDW: 70 minutes.
    • WN1082: MDW 2027-06-30 07:45:00 → PHL 2027-06-30 10:45:00.

2027-06-30 · one way · Axel-exclusive $210.00

  • American Airlines AA5105: STL 2027-06-30 12:19:00 → PHL 2027-06-30 15:32:00; nonstop; 133 minutes. Local airport times.

2027-06-30 → 2027-07-01 · Axel-exclusive $383.50

  • Southwest Airlines WN4173 / WN1082: STL 2027-06-30 05:30:00 → PHL 2027-06-30 10:45:00; 1 stop(s) via MDW; 255 minutes. Local airport times.
    • WN4173: STL 2027-06-30 05:30:00 → MDW 2027-06-30 06:35:00; layover at MDW: 70 minutes.
    • WN1082: MDW 2027-06-30 07:45:00 → PHL 2027-06-30 10:45:00.
  • Southwest Airlines WN1424: PHL 2027-07-01 14:45:00 → STL 2027-07-01 16:20:00; nonstop; 155 minutes. Local airport times.

2027-06-30 → 2027-07-01 · Axel-exclusive $424.63

  • American Airlines AA5105: STL 2027-06-30 12:19:00 → PHL 2027-06-30 15:32:00; nonstop; 133 minutes. Local airport times.
  • American Airlines AA5536: PHL 2027-07-01 20:55:00 → STL 2027-07-01 22:42:00; nonstop; 167 minutes. Local airport times.

2027-06-30 → 2027-07-02 · Axel-exclusive $383.50

  • Southwest Airlines WN4173 / WN1082: STL 2027-06-30 05:30:00 → PHL 2027-06-30 10:45:00; 1 stop(s) via MDW; 255 minutes. Local airport times.
    • WN4173: STL 2027-06-30 05:30:00 → MDW 2027-06-30 06:35:00; layover at MDW: 70 minutes.
    • WN1082: MDW 2027-06-30 07:45:00 → PHL 2027-06-30 10:45:00.
  • Southwest Airlines WN1424: PHL 2027-07-02 14:45:00 → STL 2027-07-02 16:20:00; nonstop; 155 minutes. Local airport times.

2027-06-30 → 2027-07-02 · Axel-exclusive $397.75

  • United Airlines UA3495 / UA4405: STL 2027-06-30 13:23:00 → PHL 2027-06-30 19:02:00; 1 stop(s) via IAD; 279 minutes. Local airport times.
    • UA3495: STL 2027-06-30 13:23:00 → IAD 2027-06-30 16:33:00; layover at IAD: 77 minutes.
    • UA4405: IAD 2027-06-30 17:50:00 → PHL 2027-06-30 19:02:00.
  • United Airlines UA4575 / UA4527: PHL 2027-07-02 15:05:00 → STL 2027-07-02 19:35:00; 1 stop(s) via IAD; 330 minutes. Local airport times.
    • UA4575: PHL 2027-07-02 15:05:00 → IAD 2027-07-02 16:18:00; layover at IAD: 102 minutes.
    • UA4527: IAD 2027-07-02 18:00:00 → STL 2027-07-02 19:35:00.

2027-06-30 → 2027-07-03 · Axel-exclusive $383.50

  • Southwest Airlines WN4173 / WN1082: STL 2027-06-30 05:30:00 → PHL 2027-06-30 10:45:00; 1 stop(s) via MDW; 255 minutes. Local airport times.
    • WN4173: STL 2027-06-30 05:30:00 → MDW 2027-06-30 06:35:00; layover at MDW: 70 minutes.
    • WN1082: MDW 2027-06-30 07:45:00 → PHL 2027-06-30 10:45:00.
  • Southwest Airlines WN3375: PHL 2027-07-03 05:25:00 → STL 2027-07-03 06:55:00; nonstop; 150 minutes. Local airport times.

2027-06-30 → 2027-07-03 · Axel-exclusive $424.63

  • American Airlines AA5105: STL 2027-06-30 12:19:00 → PHL 2027-06-30 15:32:00; nonstop; 133 minutes. Local airport times.
  • American Airlines AA5536: PHL 2027-07-03 20:55:00 → STL 2027-07-03 22:42:00; nonstop; 167 minutes. Local airport times.

2027-06-30 → 2027-07-04 · Axel-exclusive $383.50

  • Southwest Airlines WN4173 / WN1082: STL 2027-06-30 05:30:00 → PHL 2027-06-30 10:45:00; 1 stop(s) via MDW; 255 minutes. Local airport times.
    • WN4173: STL 2027-06-30 05:30:00 → MDW 2027-06-30 06:35:00; layover at MDW: 70 minutes.
    • WN1082: MDW 2027-06-30 07:45:00 → PHL 2027-06-30 10:45:00.
  • Southwest Airlines WN3375: PHL 2027-07-04 05:25:00 → STL 2027-07-04 06:55:00; nonstop; 150 minutes. Local airport times.

2027-06-30 → 2027-07-04 · Axel-exclusive $424.63

  • American Airlines AA5105: STL 2027-06-30 12:19:00 → PHL 2027-06-30 15:32:00; nonstop; 133 minutes. Local airport times.
  • American Airlines AA5105: PHL 2027-07-04 10:05:00 → STL 2027-07-04 11:49:00; nonstop; 164 minutes. Local airport times.

2027-06-30 → 2027-07-06 · Axel-exclusive $383.50

  • Southwest Airlines WN4173 / WN1082: STL 2027-06-30 05:30:00 → PHL 2027-06-30 10:45:00; 1 stop(s) via MDW; 255 minutes. Local airport times.
    • WN4173: STL 2027-06-30 05:30:00 → MDW 2027-06-30 06:35:00; layover at MDW: 70 minutes.
    • WN1082: MDW 2027-06-30 07:45:00 → PHL 2027-06-30 10:45:00.
  • Southwest Airlines WN3375: PHL 2027-07-06 05:25:00 → STL 2027-07-06 06:55:00; nonstop; 150 minutes. Local airport times.

2027-06-30 → 2027-07-06 · Axel-exclusive $424.63

  • American Airlines AA5105: STL 2027-06-30 12:19:00 → PHL 2027-06-30 15:32:00; nonstop; 133 minutes. Local airport times.
  • American Airlines AA5105: PHL 2027-07-06 10:19:00 → STL 2027-07-06 12:03:00; nonstop; 164 minutes. Local airport times.

2027-06-30 → 2027-07-07 · Axel-exclusive $355.00

  • Southwest Airlines WN4173 / WN1082: STL 2027-06-30 05:30:00 → PHL 2027-06-30 10:45:00; 1 stop(s) via MDW; 255 minutes. Local airport times.
    • WN4173: STL 2027-06-30 05:30:00 → MDW 2027-06-30 06:35:00; layover at MDW: 70 minutes.
    • WN1082: MDW 2027-06-30 07:45:00 → PHL 2027-06-30 10:45:00.
  • Southwest Airlines WN1424: PHL 2027-07-07 14:45:00 → STL 2027-07-07 16:20:00; nonstop; 155 minutes. Local airport times.

2027-06-30 → 2027-07-07 · Axel-exclusive $395.00

  • American Airlines AA5105: STL 2027-06-30 12:19:00 → PHL 2027-06-30 15:32:00; nonstop; 133 minutes. Local airport times.
  • American Airlines AA5073: PHL 2027-07-07 10:35:00 → STL 2027-07-07 12:25:00; nonstop; 170 minutes. Local airport times.

2027-06-30 → 2027-07-08 · Axel-exclusive $355.00

  • Southwest Airlines WN4173 / WN1082: STL 2027-06-30 05:30:00 → PHL 2027-06-30 10:45:00; 1 stop(s) via MDW; 255 minutes. Local airport times.
    • WN4173: STL 2027-06-30 05:30:00 → MDW 2027-06-30 06:35:00; layover at MDW: 70 minutes.
    • WN1082: MDW 2027-06-30 07:45:00 → PHL 2027-06-30 10:45:00.
  • Southwest Airlines WN1424: PHL 2027-07-08 14:45:00 → STL 2027-07-08 16:20:00; nonstop; 155 minutes. Local airport times.

2027-06-30 → 2027-07-08 · Axel-exclusive $395.00

  • American Airlines AA5105: STL 2027-06-30 12:19:00 → PHL 2027-06-30 15:32:00; nonstop; 133 minutes. Local airport times.
  • American Airlines AA5536: PHL 2027-07-08 20:55:00 → STL 2027-07-08 22:42:00; nonstop; 167 minutes. Local airport times.

2027-06-30 → 2027-07-10 · Axel-exclusive $355.00

  • Southwest Airlines WN4173 / WN1082: STL 2027-06-30 05:30:00 → PHL 2027-06-30 10:45:00; 1 stop(s) via MDW; 255 minutes. Local airport times.
    • WN4173: STL 2027-06-30 05:30:00 → MDW 2027-06-30 06:35:00; layover at MDW: 70 minutes.
    • WN1082: MDW 2027-06-30 07:45:00 → PHL 2027-06-30 10:45:00.
  • Southwest Airlines WN3375: PHL 2027-07-10 05:25:00 → STL 2027-07-10 06:55:00; nonstop; 150 minutes. Local airport times.

2027-06-30 → 2027-07-10 · Axel-exclusive $395.00

  • American Airlines AA5105: STL 2027-06-30 12:19:00 → PHL 2027-06-30 15:32:00; nonstop; 133 minutes. Local airport times.
  • American Airlines AA5536: PHL 2027-07-10 20:55:00 → STL 2027-07-10 22:42:00; nonstop; 167 minutes. Local airport times.

2027-06-30 → 2027-07-11 · Axel-exclusive $355.00

  • Southwest Airlines WN4173 / WN1082: STL 2027-06-30 05:30:00 → PHL 2027-06-30 10:45:00; 1 stop(s) via MDW; 255 minutes. Local airport times.
    • WN4173: STL 2027-06-30 05:30:00 → MDW 2027-06-30 06:35:00; layover at MDW: 70 minutes.
    • WN1082: MDW 2027-06-30 07:45:00 → PHL 2027-06-30 10:45:00.
  • Southwest Airlines WN3375: PHL 2027-07-11 05:25:00 → STL 2027-07-11 06:55:00; nonstop; 150 minutes. Local airport times.

2027-06-30 → 2027-07-11 · Axel-exclusive $395.00

  • American Airlines AA5105: STL 2027-06-30 12:19:00 → PHL 2027-06-30 15:32:00; nonstop; 133 minutes. Local airport times.
  • American Airlines AA5105: PHL 2027-07-11 10:05:00 → STL 2027-07-11 11:49:00; nonstop; 164 minutes. Local airport times.

2027-06-30 → 2027-07-12 · Axel-exclusive $355.00

  • Southwest Airlines WN4173 / WN1082: STL 2027-06-30 05:30:00 → PHL 2027-06-30 10:45:00; 1 stop(s) via MDW; 255 minutes. Local airport times.
    • WN4173: STL 2027-06-30 05:30:00 → MDW 2027-06-30 06:35:00; layover at MDW: 70 minutes.
    • WN1082: MDW 2027-06-30 07:45:00 → PHL 2027-06-30 10:45:00.
  • Southwest Airlines WN3375: PHL 2027-07-12 05:25:00 → STL 2027-07-12 06:55:00; nonstop; 150 minutes. Local airport times.

2027-06-30 → 2027-07-12 · Axel-exclusive $395.00

  • American Airlines AA5105: STL 2027-06-30 12:19:00 → PHL 2027-06-30 15:32:00; nonstop; 133 minutes. Local airport times.
  • American Airlines AA5105: PHL 2027-07-12 10:19:00 → STL 2027-07-12 12:03:00; nonstop; 164 minutes. Local airport times.

2027-06-30 → 2027-07-14 · Axel-exclusive $355.00

  • Southwest Airlines WN4173 / WN1082: STL 2027-06-30 05:30:00 → PHL 2027-06-30 10:45:00; 1 stop(s) via MDW; 255 minutes. Local airport times.
    • WN4173: STL 2027-06-30 05:30:00 → MDW 2027-06-30 06:35:00; layover at MDW: 70 minutes.
    • WN1082: MDW 2027-06-30 07:45:00 → PHL 2027-06-30 10:45:00.
  • Southwest Airlines WN1424: PHL 2027-07-14 14:45:00 → STL 2027-07-14 16:20:00; nonstop; 155 minutes. Local airport times.

2027-06-30 → 2027-07-14 · Axel-exclusive $395.00

  • American Airlines AA5105: STL 2027-06-30 12:19:00 → PHL 2027-06-30 15:32:00; nonstop; 133 minutes. Local airport times.
  • American Airlines AA5073: PHL 2027-07-14 10:35:00 → STL 2027-07-14 12:25:00; nonstop; 170 minutes. Local airport times.

Explore this route

For AI assistants

  • This page: Saint Louis (STL) to Philadelphia (PHL) · Jun 30, 2027 · 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 Saint Louis to Philadelphia (PHL) 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. Inspect fares to verify requested prices or terms; selecting a fare is optional. Use that fare’s booking link to preserve its Membership price basis. State anything unverified. Ask only for essential missing trip details. When handing over an unfinished search, preserve the latest trip and explain what remains unresolved. Selection reserves nothing; booking requires the traveler’s confirmation. 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.