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Route overview: Philadelphia to Louisville (SDF) flight deals

Philadelphia → Louisville

May 4, 2027 · choose your return date

PHL → SDF1 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.

May 2027

May 4, 2027 · One waySouthwest AirlinesUp to 1 stop each way$180.00 May 4, 2027 · One wayAmerican AirlinesUp to 1 stop each way$185.00 May 4, 2027 – May 5, 2027 · 1 nightSouthwest AirlinesUp to 1 stop each way$335.00 May 4, 2027 – May 5, 2027 · 1 nightUnited AirlinesUp to 1 stop each way$355.00 May 4, 2027 – May 6, 2027 · 2 nightsSouthwest AirlinesUp to 1 stop each way$335.00 May 4, 2027 – May 6, 2027 · 2 nightsUnited AirlinesUp to 1 stop each way$355.00 May 4, 2027 – May 7, 2027 · 3 nightsSouthwest AirlinesUp to 1 stop each way$335.00 May 4, 2027 – May 7, 2027 · 3 nightsUnited AirlinesUp to 1 stop each way$355.00 May 4, 2027 – May 8, 2027 · 4 nightsSouthwest AirlinesUp to 1 stop each way$335.00 May 4, 2027 – May 8, 2027 · 4 nightsUnited AirlinesUp to 1 stop each way$355.00 May 4, 2027 – May 9, 2027 · 5 nightsSouthwest AirlinesUp to 1 stop each way$335.00 May 4, 2027 – May 9, 2027 · 5 nightsUnited AirlinesUp to 1 stop each way$355.00 May 4, 2027 – May 10, 2027 · 6 nightsSouthwest AirlinesUp to 1 stop each way$335.00 May 4, 2027 – May 10, 2027 · 6 nightsUnited AirlinesUp to 1 stop each way$355.00 May 4, 2027 – May 11, 2027 · 7 nightsSouthwest AirlinesUp to 1 stop each way$335.00 May 4, 2027 – May 11, 2027 · 7 nightsAmerican AirlinesUp to 1 stop each way$340.00 May 4, 2027 – May 12, 2027 · 8 nightsSouthwest AirlinesUp to 1 stop each way$335.00 May 4, 2027 – May 12, 2027 · 8 nightsUnited AirlinesUp to 1 stop each way$355.00 May 4, 2027 – May 13, 2027 · 9 nightsSouthwest AirlinesUp to 1 stop each way$335.00 May 4, 2027 – May 13, 2027 · 9 nightsUnited AirlinesUp to 1 stop each way$355.00 May 4, 2027 – May 14, 2027 · 10 nightsSouthwest AirlinesUp to 1 stop each way$335.00 May 4, 2027 – May 14, 2027 · 10 nightsUnited AirlinesUp to 1 stop each way$355.00 May 4, 2027 – May 15, 2027 · 11 nightsSouthwest AirlinesUp to 1 stop each way$335.00 May 4, 2027 – May 15, 2027 · 11 nightsUnited AirlinesUp to 1 stop each way$355.00 May 4, 2027 – May 16, 2027 · 12 nightsSouthwest AirlinesUp to 1 stop each way$335.00 May 4, 2027 – May 16, 2027 · 12 nightsUnited AirlinesUp to 1 stop each way$355.00 May 4, 2027 – May 17, 2027 · 13 nightsSouthwest AirlinesUp to 1 stop each way$335.00 May 4, 2027 – May 17, 2027 · 13 nightsUnited AirlinesUp to 1 stop each way$355.00 May 4, 2027 – May 18, 2027 · 14 nightsSouthwest AirlinesUp to 1 stop each way$335.00 May 4, 2027 – May 18, 2027 · 14 nightsAmerican AirlinesUp to 1 stop each way$340.00

Flights for your trip

  1. Tue, May 4 · One way

    Southwest Airlines
    2:55 pmPHL
    5h 45m
    BNA · 2h 20m
    8:40 pmSDF

    One-way total · 1 adult · Taxes included

  2. Tue, May 4 · One way

    American Airlines
    6:00 amPHL
    4h 54m
    CLT · 1h 13m
    10:54 amSDF

    One-way total · 1 adult · Taxes included

  3. Tue, May 4 – Wed, May 5

    Southwest Airlines
    2:55 pmPHL
    5h 45m
    BNA · 2h 20m
    8:40 pmSDF
    Southwest Airlines
    7:15 pmSDF
    4h 35m
    BNA · 1h 30m
    11:50 pmPHL

    Round-trip total · 1 adult · Taxes included

  4. Tue, May 4 – Wed, May 5

    United Airlines
    3:05 pmPHL
    4h 25m
    IAD · 1h 17m
    7:30 pmSDF
    United Airlines
    9:55 amSDF
    4h 19m
    IAD · 1h 26m
    2:14 pmPHL

    Round-trip total · 1 adult · Taxes included

  5. Tue, May 4 – Thu, May 6

    Southwest Airlines
    2:55 pmPHL
    5h 45m
    BNA · 2h 20m
    8:40 pmSDF
    Southwest Airlines
    7:15 pmSDF
    4h 35m
    BNA · 1h 30m
    11:50 pmPHL

    Round-trip total · 1 adult · Taxes included

  6. Tue, May 4 – Thu, May 6

    United Airlines
    3:05 pmPHL
    4h 25m
    IAD · 1h 17m
    7:30 pmSDF
    United Airlines
    9:55 amSDF
    4h 19m
    IAD · 1h 26m
    2:14 pmPHL

    Round-trip total · 1 adult · Taxes included

  7. Tue, May 4 – Fri, May 7

    Southwest Airlines
    2:55 pmPHL
    5h 45m
    BNA · 2h 20m
    8:40 pmSDF
    Southwest Airlines
    7:15 pmSDF
    4h 35m
    BNA · 1h 30m
    11:50 pmPHL

    Round-trip total · 1 adult · Taxes included

  8. Tue, May 4 – Fri, May 7

    United Airlines
    3:05 pmPHL
    4h 25m
    IAD · 1h 17m
    7:30 pmSDF
    United Airlines
    9:55 amSDF
    4h 19m
    IAD · 1h 26m
    2:14 pmPHL

    Round-trip total · 1 adult · Taxes included

  9. Tue, May 4 – Sat, May 8

    Southwest Airlines
    2:55 pmPHL
    5h 45m
    BNA · 2h 20m
    8:40 pmSDF
    Southwest Airlines
    7:15 pmSDF
    4h 35m
    BNA · 1h 30m
    11:50 pmPHL

    Round-trip total · 1 adult · Taxes included

  10. Tue, May 4 – Sat, May 8

    United Airlines
    3:05 pmPHL
    4h 25m
    IAD · 1h 17m
    7:30 pmSDF
    United Airlines
    9:55 amSDF
    4h 19m
    IAD · 1h 26m
    2:14 pmPHL

    Round-trip total · 1 adult · Taxes included

  11. Tue, May 4 – Mon, May 10

    Southwest Airlines
    2:55 pmPHL
    5h 45m
    BNA · 2h 20m
    8:40 pmSDF
    Southwest Airlines
    7:15 pmSDF
    4h 35m
    BNA · 1h 30m
    11:50 pmPHL

    Round-trip total · 1 adult · Taxes included

  12. Tue, May 4 – Mon, May 10

    United Airlines
    3:05 pmPHL
    4h 25m
    IAD · 1h 17m
    7:30 pmSDF
    United Airlines
    9:55 amSDF
    4h 19m
    IAD · 1h 26m
    2:14 pmPHL

    Round-trip total · 1 adult · Taxes included

  13. Tue, May 4 – Tue, May 11

    Southwest Airlines
    2:55 pmPHL
    5h 45m
    BNA · 2h 20m
    8:40 pmSDF
    Southwest Airlines
    7:15 pmSDF
    4h 35m
    BNA · 1h 30m
    11:50 pmPHL

    Round-trip total · 1 adult · Taxes included

  14. Tue, May 4 – Tue, May 11

    American Airlines
    6:00 amPHL
    4h 54m
    CLT · 1h 13m
    10:54 amSDF
    American Airlines
    1:14 pmSDF
    5h 16m
    ORD · 1h 22m
    6:30 pmPHL

    Round-trip total · 1 adult · Taxes included

  15. Tue, May 4 – Wed, May 12

    Southwest Airlines
    2:55 pmPHL
    5h 45m
    BNA · 2h 20m
    8:40 pmSDF
    Southwest Airlines
    7:15 pmSDF
    4h 35m
    BNA · 1h 30m
    11:50 pmPHL

    Round-trip total · 1 adult · Taxes included

  16. Tue, May 4 – Wed, May 12

    United Airlines
    3:05 pmPHL
    4h 25m
    IAD · 1h 17m
    7:30 pmSDF
    United Airlines
    9:55 amSDF
    4h 19m
    IAD · 1h 26m
    2:14 pmPHL

    Round-trip total · 1 adult · Taxes included

  17. Tue, May 4 – Fri, May 14

    Southwest Airlines
    2:55 pmPHL
    5h 45m
    BNA · 2h 20m
    8:40 pmSDF
    Southwest Airlines
    7:15 pmSDF
    4h 35m
    BNA · 1h 30m
    11:50 pmPHL

    Round-trip total · 1 adult · Taxes included

  18. Tue, May 4 – Fri, May 14

    United Airlines
    3:05 pmPHL
    4h 25m
    IAD · 1h 17m
    7:30 pmSDF
    United Airlines
    9:55 amSDF
    4h 19m
    IAD · 1h 26m
    2:14 pmPHL

    Round-trip total · 1 adult · Taxes included

  19. Tue, May 4 – Sat, May 15

    Southwest Airlines
    2:55 pmPHL
    5h 45m
    BNA · 2h 20m
    8:40 pmSDF
    Southwest Airlines
    7:15 pmSDF
    4h 35m
    BNA · 1h 30m
    11:50 pmPHL

    Round-trip total · 1 adult · Taxes included

  20. Tue, May 4 – Sat, May 15

    United Airlines
    3:05 pmPHL
    4h 25m
    IAD · 1h 17m
    7:30 pmSDF
    United Airlines
    9:55 amSDF
    4h 19m
    IAD · 1h 26m
    2:14 pmPHL

    Round-trip total · 1 adult · Taxes included

  21. Tue, May 4 – Sun, May 16

    Southwest Airlines
    2:55 pmPHL
    5h 45m
    BNA · 2h 20m
    8:40 pmSDF
    Southwest Airlines
    7:15 pmSDF
    4h 35m
    BNA · 1h 30m
    11:50 pmPHL

    Round-trip total · 1 adult · Taxes included

  22. Tue, May 4 – Sun, May 16

    United Airlines
    3:05 pmPHL
    4h 25m
    IAD · 1h 17m
    7:30 pmSDF
    United Airlines
    9:55 amSDF
    4h 19m
    IAD · 1h 26m
    2:14 pmPHL

    Round-trip total · 1 adult · Taxes included

  23. Tue, May 4 – Tue, May 18

    Southwest Airlines
    2:55 pmPHL
    5h 45m
    BNA · 2h 20m
    8:40 pmSDF
    Southwest Airlines
    7:15 pmSDF
    4h 35m
    BNA · 1h 30m
    11:50 pmPHL

    Round-trip total · 1 adult · Taxes included

  24. Tue, May 4 – Tue, May 18

    American Airlines
    6:00 amPHL
    4h 54m
    CLT · 1h 13m
    10:54 amSDF
    American Airlines
    1:14 pmSDF
    5h 16m
    ORD · 1h 22m
    6:30 pmPHL

    Round-trip total · 1 adult · Taxes included

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1 of 24

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PHL ⇄ SDF

Economy

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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)
2027-05-04 · one waySouthwest AirlinesWN2080 + WN2154Axel-exclusive $180.002026-10-29T01:56:00Z
2027-05-04 · one wayAmerican AirlinesAA3107 + AA5479Axel-exclusive $185.002026-10-29T01:56:00Z
2027-05-04 → 2027-05-05Southwest AirlinesWN2080 + WN2154 / WN3814 + WN680Axel-exclusive $335.002026-10-29T01:56:00Z
2027-05-04 → 2027-05-05United AirlinesUA4575 + UA4055 / UA4059 + UA4292Axel-exclusive $355.002026-10-29T01:56:00Z
2027-05-04 → 2027-05-06Southwest AirlinesWN2080 + WN2154 / WN3814 + WN680Axel-exclusive $335.002026-10-29T01:56:00Z
2027-05-04 → 2027-05-06United AirlinesUA4575 + UA4055 / UA4059 + UA4292Axel-exclusive $355.002026-10-29T01:56:00Z
2027-05-04 → 2027-05-07Southwest AirlinesWN2080 + WN2154 / WN3814 + WN680Axel-exclusive $335.002026-10-29T01:56:00Z
2027-05-04 → 2027-05-07United AirlinesUA4575 + UA4055 / UA4059 + UA4292Axel-exclusive $355.002026-10-29T01:56:00Z
2027-05-04 → 2027-05-08Southwest AirlinesWN2080 + WN2154 / WN3814 + WN680Axel-exclusive $335.002026-10-29T01:56:00Z
2027-05-04 → 2027-05-08United AirlinesUA4575 + UA4055 / UA4059 + UA4292Axel-exclusive $355.002026-10-29T01:56:00Z
2027-05-04 → 2027-05-09Southwest AirlinesWN2080 + WN2154 / WN3814 + WN680Axel-exclusive $335.002026-10-29T01:56:00Z
2027-05-04 → 2027-05-09United AirlinesUA4575 + UA4055 / UA4059 + UA4292Axel-exclusive $355.002026-10-29T01:56:00Z
2027-05-04 → 2027-05-10Southwest AirlinesWN2080 + WN2154 / WN3814 + WN680Axel-exclusive $335.002026-10-29T01:56:00Z
2027-05-04 → 2027-05-10United AirlinesUA4575 + UA4055 / UA4059 + UA4292Axel-exclusive $355.002026-10-29T01:56:00Z
2027-05-04 → 2027-05-11Southwest AirlinesWN2080 + WN2154 / WN3814 + WN680Axel-exclusive $335.002026-10-29T01:56:00Z
2027-05-04 → 2027-05-11American AirlinesAA3107 + AA5479 / AA5316 + AA2840Axel-exclusive $340.002026-10-29T01:56:00Z
2027-05-04 → 2027-05-12Southwest AirlinesWN2080 + WN2154 / WN3814 + WN680Axel-exclusive $335.002026-10-29T01:56:00Z
2027-05-04 → 2027-05-12United AirlinesUA4575 + UA4055 / UA4059 + UA4292Axel-exclusive $355.002026-10-29T01:56:00Z
2027-05-04 → 2027-05-13Southwest AirlinesWN2080 + WN2154 / WN3814 + WN680Axel-exclusive $335.002026-10-29T01:56:00Z
2027-05-04 → 2027-05-13United AirlinesUA4575 + UA4055 / UA4059 + UA4292Axel-exclusive $355.002026-10-29T01:56:00Z
2027-05-04 → 2027-05-14Southwest AirlinesWN2080 + WN2154 / WN3814 + WN680Axel-exclusive $335.002026-10-29T01:56:00Z
2027-05-04 → 2027-05-14United AirlinesUA4575 + UA4055 / UA4059 + UA4292Axel-exclusive $355.002026-10-29T01:56:00Z
2027-05-04 → 2027-05-15Southwest AirlinesWN2080 + WN2154 / WN3814 + WN680Axel-exclusive $335.002026-10-29T01:56:00Z
2027-05-04 → 2027-05-15United AirlinesUA4575 + UA4055 / UA4059 + UA4292Axel-exclusive $355.002026-10-29T01:56:00Z
2027-05-04 → 2027-05-16Southwest AirlinesWN2080 + WN2154 / WN3814 + WN680Axel-exclusive $335.002026-10-29T01:56:00Z
2027-05-04 → 2027-05-16United AirlinesUA4575 + UA4055 / UA4059 + UA4292Axel-exclusive $355.002026-10-29T01:56:00Z
2027-05-04 → 2027-05-17Southwest AirlinesWN2080 + WN2154 / WN3814 + WN680Axel-exclusive $335.002026-10-29T01:56:00Z
2027-05-04 → 2027-05-17United AirlinesUA4575 + UA4055 / UA4059 + UA4292Axel-exclusive $355.002026-10-29T01:56:00Z
2027-05-04 → 2027-05-18Southwest AirlinesWN2080 + WN2154 / WN3814 + WN680Axel-exclusive $335.002026-10-29T01:56:00Z
2027-05-04 → 2027-05-18American AirlinesAA3107 + AA5479 / AA5316 + AA2840Axel-exclusive $340.002026-10-29T01:56:00Z

Route overview: Philadelphia to Louisville (SDF) flight deals

2027-05-04 · one way · Axel-exclusive $180.00

  • Southwest Airlines WN2080 / WN2154: PHL 2027-05-04 14:55:00 → SDF 2027-05-04 20:40:00; 1 stop(s) via BNA; 345 minutes. Local airport times.
    • WN2080: PHL 2027-05-04 14:55:00 → BNA 2027-05-04 16:10:00; layover at BNA: 140 minutes.
    • WN2154: BNA 2027-05-04 18:30:00 → SDF 2027-05-04 20:40:00.

2027-05-04 · one way · Axel-exclusive $185.00

  • American Airlines AA3107 / AA5479: PHL 2027-05-04 06:00:00 → SDF 2027-05-04 10:54:00; 1 stop(s) via CLT; 294 minutes. Local airport times.
    • AA3107: PHL 2027-05-04 06:00:00 → CLT 2027-05-04 07:52:00; layover at CLT: 73 minutes.
    • AA5479: CLT 2027-05-04 09:05:00 → SDF 2027-05-04 10:54:00.

2027-05-04 → 2027-05-05 · Axel-exclusive $335.00

  • Southwest Airlines WN2080 / WN2154: PHL 2027-05-04 14:55:00 → SDF 2027-05-04 20:40:00; 1 stop(s) via BNA; 345 minutes. Local airport times.
    • WN2080: PHL 2027-05-04 14:55:00 → BNA 2027-05-04 16:10:00; layover at BNA: 140 minutes.
    • WN2154: BNA 2027-05-04 18:30:00 → SDF 2027-05-04 20:40:00.
  • Southwest Airlines WN3814 / WN680: SDF 2027-05-05 19:15:00 → PHL 2027-05-05 23:50:00; 1 stop(s) via BNA; 275 minutes. Local airport times.
    • WN3814: SDF 2027-05-05 19:15:00 → BNA 2027-05-05 19:15:00; layover at BNA: 90 minutes.
    • WN680: BNA 2027-05-05 20:45:00 → PHL 2027-05-05 23:50:00.

2027-05-04 → 2027-05-05 · Axel-exclusive $355.00

  • United Airlines UA4575 / UA4055: PHL 2027-05-04 15:05:00 → SDF 2027-05-04 19:30:00; 1 stop(s) via IAD; 265 minutes. Local airport times.
    • UA4575: PHL 2027-05-04 15:05:00 → IAD 2027-05-04 16:18:00; layover at IAD: 77 minutes.
    • UA4055: IAD 2027-05-04 17:35:00 → SDF 2027-05-04 19:30:00.
  • United Airlines UA4059 / UA4292: SDF 2027-05-05 09:55:00 → PHL 2027-05-05 14:14:00; 1 stop(s) via IAD; 259 minutes. Local airport times.
    • UA4059: SDF 2027-05-05 09:55:00 → IAD 2027-05-05 11:33:00; layover at IAD: 86 minutes.
    • UA4292: IAD 2027-05-05 12:59:00 → PHL 2027-05-05 14:14:00.

2027-05-04 → 2027-05-06 · Axel-exclusive $335.00

  • Southwest Airlines WN2080 / WN2154: PHL 2027-05-04 14:55:00 → SDF 2027-05-04 20:40:00; 1 stop(s) via BNA; 345 minutes. Local airport times.
    • WN2080: PHL 2027-05-04 14:55:00 → BNA 2027-05-04 16:10:00; layover at BNA: 140 minutes.
    • WN2154: BNA 2027-05-04 18:30:00 → SDF 2027-05-04 20:40:00.
  • Southwest Airlines WN3814 / WN680: SDF 2027-05-06 19:15:00 → PHL 2027-05-06 23:50:00; 1 stop(s) via BNA; 275 minutes. Local airport times.
    • WN3814: SDF 2027-05-06 19:15:00 → BNA 2027-05-06 19:15:00; layover at BNA: 90 minutes.
    • WN680: BNA 2027-05-06 20:45:00 → PHL 2027-05-06 23:50:00.

2027-05-04 → 2027-05-06 · Axel-exclusive $355.00

  • United Airlines UA4575 / UA4055: PHL 2027-05-04 15:05:00 → SDF 2027-05-04 19:30:00; 1 stop(s) via IAD; 265 minutes. Local airport times.
    • UA4575: PHL 2027-05-04 15:05:00 → IAD 2027-05-04 16:18:00; layover at IAD: 77 minutes.
    • UA4055: IAD 2027-05-04 17:35:00 → SDF 2027-05-04 19:30:00.
  • United Airlines UA4059 / UA4292: SDF 2027-05-06 09:55:00 → PHL 2027-05-06 14:14:00; 1 stop(s) via IAD; 259 minutes. Local airport times.
    • UA4059: SDF 2027-05-06 09:55:00 → IAD 2027-05-06 11:33:00; layover at IAD: 86 minutes.
    • UA4292: IAD 2027-05-06 12:59:00 → PHL 2027-05-06 14:14:00.

2027-05-04 → 2027-05-07 · Axel-exclusive $335.00

  • Southwest Airlines WN2080 / WN2154: PHL 2027-05-04 14:55:00 → SDF 2027-05-04 20:40:00; 1 stop(s) via BNA; 345 minutes. Local airport times.
    • WN2080: PHL 2027-05-04 14:55:00 → BNA 2027-05-04 16:10:00; layover at BNA: 140 minutes.
    • WN2154: BNA 2027-05-04 18:30:00 → SDF 2027-05-04 20:40:00.
  • Southwest Airlines WN3814 / WN680: SDF 2027-05-07 19:15:00 → PHL 2027-05-07 23:50:00; 1 stop(s) via BNA; 275 minutes. Local airport times.
    • WN3814: SDF 2027-05-07 19:15:00 → BNA 2027-05-07 19:15:00; layover at BNA: 90 minutes.
    • WN680: BNA 2027-05-07 20:45:00 → PHL 2027-05-07 23:50:00.

2027-05-04 → 2027-05-07 · Axel-exclusive $355.00

  • United Airlines UA4575 / UA4055: PHL 2027-05-04 15:05:00 → SDF 2027-05-04 19:30:00; 1 stop(s) via IAD; 265 minutes. Local airport times.
    • UA4575: PHL 2027-05-04 15:05:00 → IAD 2027-05-04 16:18:00; layover at IAD: 77 minutes.
    • UA4055: IAD 2027-05-04 17:35:00 → SDF 2027-05-04 19:30:00.
  • United Airlines UA4059 / UA4292: SDF 2027-05-07 09:55:00 → PHL 2027-05-07 14:14:00; 1 stop(s) via IAD; 259 minutes. Local airport times.
    • UA4059: SDF 2027-05-07 09:55:00 → IAD 2027-05-07 11:33:00; layover at IAD: 86 minutes.
    • UA4292: IAD 2027-05-07 12:59:00 → PHL 2027-05-07 14:14:00.

2027-05-04 → 2027-05-08 · Axel-exclusive $335.00

  • Southwest Airlines WN2080 / WN2154: PHL 2027-05-04 14:55:00 → SDF 2027-05-04 20:40:00; 1 stop(s) via BNA; 345 minutes. Local airport times.
    • WN2080: PHL 2027-05-04 14:55:00 → BNA 2027-05-04 16:10:00; layover at BNA: 140 minutes.
    • WN2154: BNA 2027-05-04 18:30:00 → SDF 2027-05-04 20:40:00.
  • Southwest Airlines WN3814 / WN680: SDF 2027-05-08 19:15:00 → PHL 2027-05-08 23:50:00; 1 stop(s) via BNA; 275 minutes. Local airport times.
    • WN3814: SDF 2027-05-08 19:15:00 → BNA 2027-05-08 19:15:00; layover at BNA: 90 minutes.
    • WN680: BNA 2027-05-08 20:45:00 → PHL 2027-05-08 23:50:00.

2027-05-04 → 2027-05-08 · Axel-exclusive $355.00

  • United Airlines UA4575 / UA4055: PHL 2027-05-04 15:05:00 → SDF 2027-05-04 19:30:00; 1 stop(s) via IAD; 265 minutes. Local airport times.
    • UA4575: PHL 2027-05-04 15:05:00 → IAD 2027-05-04 16:18:00; layover at IAD: 77 minutes.
    • UA4055: IAD 2027-05-04 17:35:00 → SDF 2027-05-04 19:30:00.
  • United Airlines UA4059 / UA4292: SDF 2027-05-08 09:55:00 → PHL 2027-05-08 14:14:00; 1 stop(s) via IAD; 259 minutes. Local airport times.
    • UA4059: SDF 2027-05-08 09:55:00 → IAD 2027-05-08 11:33:00; layover at IAD: 86 minutes.
    • UA4292: IAD 2027-05-08 12:59:00 → PHL 2027-05-08 14:14:00.

2027-05-04 → 2027-05-10 · Axel-exclusive $335.00

  • Southwest Airlines WN2080 / WN2154: PHL 2027-05-04 14:55:00 → SDF 2027-05-04 20:40:00; 1 stop(s) via BNA; 345 minutes. Local airport times.
    • WN2080: PHL 2027-05-04 14:55:00 → BNA 2027-05-04 16:10:00; layover at BNA: 140 minutes.
    • WN2154: BNA 2027-05-04 18:30:00 → SDF 2027-05-04 20:40:00.
  • Southwest Airlines WN3814 / WN680: SDF 2027-05-10 19:15:00 → PHL 2027-05-10 23:50:00; 1 stop(s) via BNA; 275 minutes. Local airport times.
    • WN3814: SDF 2027-05-10 19:15:00 → BNA 2027-05-10 19:15:00; layover at BNA: 90 minutes.
    • WN680: BNA 2027-05-10 20:45:00 → PHL 2027-05-10 23:50:00.

2027-05-04 → 2027-05-10 · Axel-exclusive $355.00

  • United Airlines UA4575 / UA4055: PHL 2027-05-04 15:05:00 → SDF 2027-05-04 19:30:00; 1 stop(s) via IAD; 265 minutes. Local airport times.
    • UA4575: PHL 2027-05-04 15:05:00 → IAD 2027-05-04 16:18:00; layover at IAD: 77 minutes.
    • UA4055: IAD 2027-05-04 17:35:00 → SDF 2027-05-04 19:30:00.
  • United Airlines UA4059 / UA4292: SDF 2027-05-10 09:55:00 → PHL 2027-05-10 14:14:00; 1 stop(s) via IAD; 259 minutes. Local airport times.
    • UA4059: SDF 2027-05-10 09:55:00 → IAD 2027-05-10 11:33:00; layover at IAD: 86 minutes.
    • UA4292: IAD 2027-05-10 12:59:00 → PHL 2027-05-10 14:14:00.

2027-05-04 → 2027-05-11 · Axel-exclusive $335.00

  • Southwest Airlines WN2080 / WN2154: PHL 2027-05-04 14:55:00 → SDF 2027-05-04 20:40:00; 1 stop(s) via BNA; 345 minutes. Local airport times.
    • WN2080: PHL 2027-05-04 14:55:00 → BNA 2027-05-04 16:10:00; layover at BNA: 140 minutes.
    • WN2154: BNA 2027-05-04 18:30:00 → SDF 2027-05-04 20:40:00.
  • Southwest Airlines WN3814 / WN680: SDF 2027-05-11 19:15:00 → PHL 2027-05-11 23:50:00; 1 stop(s) via BNA; 275 minutes. Local airport times.
    • WN3814: SDF 2027-05-11 19:15:00 → BNA 2027-05-11 19:15:00; layover at BNA: 90 minutes.
    • WN680: BNA 2027-05-11 20:45:00 → PHL 2027-05-11 23:50:00.

2027-05-04 → 2027-05-11 · Axel-exclusive $340.00

  • American Airlines AA3107 / AA5479: PHL 2027-05-04 06:00:00 → SDF 2027-05-04 10:54:00; 1 stop(s) via CLT; 294 minutes. Local airport times.
    • AA3107: PHL 2027-05-04 06:00:00 → CLT 2027-05-04 07:52:00; layover at CLT: 73 minutes.
    • AA5479: CLT 2027-05-04 09:05:00 → SDF 2027-05-04 10:54:00.
  • American Airlines AA5316 / AA2840: SDF 2027-05-11 13:14:00 → PHL 2027-05-11 18:30:00; 1 stop(s) via ORD; 316 minutes. Local airport times.
    • AA5316: SDF 2027-05-11 13:14:00 → ORD 2027-05-11 13:57:00; layover at ORD: 82 minutes.
    • AA2840: ORD 2027-05-11 15:19:00 → PHL 2027-05-11 18:30:00.

2027-05-04 → 2027-05-12 · Axel-exclusive $335.00

  • Southwest Airlines WN2080 / WN2154: PHL 2027-05-04 14:55:00 → SDF 2027-05-04 20:40:00; 1 stop(s) via BNA; 345 minutes. Local airport times.
    • WN2080: PHL 2027-05-04 14:55:00 → BNA 2027-05-04 16:10:00; layover at BNA: 140 minutes.
    • WN2154: BNA 2027-05-04 18:30:00 → SDF 2027-05-04 20:40:00.
  • Southwest Airlines WN3814 / WN680: SDF 2027-05-12 19:15:00 → PHL 2027-05-12 23:50:00; 1 stop(s) via BNA; 275 minutes. Local airport times.
    • WN3814: SDF 2027-05-12 19:15:00 → BNA 2027-05-12 19:15:00; layover at BNA: 90 minutes.
    • WN680: BNA 2027-05-12 20:45:00 → PHL 2027-05-12 23:50:00.

2027-05-04 → 2027-05-12 · Axel-exclusive $355.00

  • United Airlines UA4575 / UA4055: PHL 2027-05-04 15:05:00 → SDF 2027-05-04 19:30:00; 1 stop(s) via IAD; 265 minutes. Local airport times.
    • UA4575: PHL 2027-05-04 15:05:00 → IAD 2027-05-04 16:18:00; layover at IAD: 77 minutes.
    • UA4055: IAD 2027-05-04 17:35:00 → SDF 2027-05-04 19:30:00.
  • United Airlines UA4059 / UA4292: SDF 2027-05-12 09:55:00 → PHL 2027-05-12 14:14:00; 1 stop(s) via IAD; 259 minutes. Local airport times.
    • UA4059: SDF 2027-05-12 09:55:00 → IAD 2027-05-12 11:33:00; layover at IAD: 86 minutes.
    • UA4292: IAD 2027-05-12 12:59:00 → PHL 2027-05-12 14:14:00.

2027-05-04 → 2027-05-14 · Axel-exclusive $335.00

  • Southwest Airlines WN2080 / WN2154: PHL 2027-05-04 14:55:00 → SDF 2027-05-04 20:40:00; 1 stop(s) via BNA; 345 minutes. Local airport times.
    • WN2080: PHL 2027-05-04 14:55:00 → BNA 2027-05-04 16:10:00; layover at BNA: 140 minutes.
    • WN2154: BNA 2027-05-04 18:30:00 → SDF 2027-05-04 20:40:00.
  • Southwest Airlines WN3814 / WN680: SDF 2027-05-14 19:15:00 → PHL 2027-05-14 23:50:00; 1 stop(s) via BNA; 275 minutes. Local airport times.
    • WN3814: SDF 2027-05-14 19:15:00 → BNA 2027-05-14 19:15:00; layover at BNA: 90 minutes.
    • WN680: BNA 2027-05-14 20:45:00 → PHL 2027-05-14 23:50:00.

2027-05-04 → 2027-05-14 · Axel-exclusive $355.00

  • United Airlines UA4575 / UA4055: PHL 2027-05-04 15:05:00 → SDF 2027-05-04 19:30:00; 1 stop(s) via IAD; 265 minutes. Local airport times.
    • UA4575: PHL 2027-05-04 15:05:00 → IAD 2027-05-04 16:18:00; layover at IAD: 77 minutes.
    • UA4055: IAD 2027-05-04 17:35:00 → SDF 2027-05-04 19:30:00.
  • United Airlines UA4059 / UA4292: SDF 2027-05-14 09:55:00 → PHL 2027-05-14 14:14:00; 1 stop(s) via IAD; 259 minutes. Local airport times.
    • UA4059: SDF 2027-05-14 09:55:00 → IAD 2027-05-14 11:33:00; layover at IAD: 86 minutes.
    • UA4292: IAD 2027-05-14 12:59:00 → PHL 2027-05-14 14:14:00.

2027-05-04 → 2027-05-15 · Axel-exclusive $335.00

  • Southwest Airlines WN2080 / WN2154: PHL 2027-05-04 14:55:00 → SDF 2027-05-04 20:40:00; 1 stop(s) via BNA; 345 minutes. Local airport times.
    • WN2080: PHL 2027-05-04 14:55:00 → BNA 2027-05-04 16:10:00; layover at BNA: 140 minutes.
    • WN2154: BNA 2027-05-04 18:30:00 → SDF 2027-05-04 20:40:00.
  • Southwest Airlines WN3814 / WN680: SDF 2027-05-15 19:15:00 → PHL 2027-05-15 23:50:00; 1 stop(s) via BNA; 275 minutes. Local airport times.
    • WN3814: SDF 2027-05-15 19:15:00 → BNA 2027-05-15 19:15:00; layover at BNA: 90 minutes.
    • WN680: BNA 2027-05-15 20:45:00 → PHL 2027-05-15 23:50:00.

2027-05-04 → 2027-05-15 · Axel-exclusive $355.00

  • United Airlines UA4575 / UA4055: PHL 2027-05-04 15:05:00 → SDF 2027-05-04 19:30:00; 1 stop(s) via IAD; 265 minutes. Local airport times.
    • UA4575: PHL 2027-05-04 15:05:00 → IAD 2027-05-04 16:18:00; layover at IAD: 77 minutes.
    • UA4055: IAD 2027-05-04 17:35:00 → SDF 2027-05-04 19:30:00.
  • United Airlines UA4059 / UA4292: SDF 2027-05-15 09:55:00 → PHL 2027-05-15 14:14:00; 1 stop(s) via IAD; 259 minutes. Local airport times.
    • UA4059: SDF 2027-05-15 09:55:00 → IAD 2027-05-15 11:33:00; layover at IAD: 86 minutes.
    • UA4292: IAD 2027-05-15 12:59:00 → PHL 2027-05-15 14:14:00.

2027-05-04 → 2027-05-16 · Axel-exclusive $335.00

  • Southwest Airlines WN2080 / WN2154: PHL 2027-05-04 14:55:00 → SDF 2027-05-04 20:40:00; 1 stop(s) via BNA; 345 minutes. Local airport times.
    • WN2080: PHL 2027-05-04 14:55:00 → BNA 2027-05-04 16:10:00; layover at BNA: 140 minutes.
    • WN2154: BNA 2027-05-04 18:30:00 → SDF 2027-05-04 20:40:00.
  • Southwest Airlines WN3814 / WN680: SDF 2027-05-16 19:15:00 → PHL 2027-05-16 23:50:00; 1 stop(s) via BNA; 275 minutes. Local airport times.
    • WN3814: SDF 2027-05-16 19:15:00 → BNA 2027-05-16 19:15:00; layover at BNA: 90 minutes.
    • WN680: BNA 2027-05-16 20:45:00 → PHL 2027-05-16 23:50:00.

2027-05-04 → 2027-05-16 · Axel-exclusive $355.00

  • United Airlines UA4575 / UA4055: PHL 2027-05-04 15:05:00 → SDF 2027-05-04 19:30:00; 1 stop(s) via IAD; 265 minutes. Local airport times.
    • UA4575: PHL 2027-05-04 15:05:00 → IAD 2027-05-04 16:18:00; layover at IAD: 77 minutes.
    • UA4055: IAD 2027-05-04 17:35:00 → SDF 2027-05-04 19:30:00.
  • United Airlines UA4059 / UA4292: SDF 2027-05-16 09:55:00 → PHL 2027-05-16 14:14:00; 1 stop(s) via IAD; 259 minutes. Local airport times.
    • UA4059: SDF 2027-05-16 09:55:00 → IAD 2027-05-16 11:33:00; layover at IAD: 86 minutes.
    • UA4292: IAD 2027-05-16 12:59:00 → PHL 2027-05-16 14:14:00.

2027-05-04 → 2027-05-18 · Axel-exclusive $335.00

  • Southwest Airlines WN2080 / WN2154: PHL 2027-05-04 14:55:00 → SDF 2027-05-04 20:40:00; 1 stop(s) via BNA; 345 minutes. Local airport times.
    • WN2080: PHL 2027-05-04 14:55:00 → BNA 2027-05-04 16:10:00; layover at BNA: 140 minutes.
    • WN2154: BNA 2027-05-04 18:30:00 → SDF 2027-05-04 20:40:00.
  • Southwest Airlines WN3814 / WN680: SDF 2027-05-18 19:15:00 → PHL 2027-05-18 23:50:00; 1 stop(s) via BNA; 275 minutes. Local airport times.
    • WN3814: SDF 2027-05-18 19:15:00 → BNA 2027-05-18 19:15:00; layover at BNA: 90 minutes.
    • WN680: BNA 2027-05-18 20:45:00 → PHL 2027-05-18 23:50:00.

2027-05-04 → 2027-05-18 · Axel-exclusive $340.00

  • American Airlines AA3107 / AA5479: PHL 2027-05-04 06:00:00 → SDF 2027-05-04 10:54:00; 1 stop(s) via CLT; 294 minutes. Local airport times.
    • AA3107: PHL 2027-05-04 06:00:00 → CLT 2027-05-04 07:52:00; layover at CLT: 73 minutes.
    • AA5479: CLT 2027-05-04 09:05:00 → SDF 2027-05-04 10:54:00.
  • American Airlines AA5316 / AA2840: SDF 2027-05-18 13:14:00 → PHL 2027-05-18 18:30:00; 1 stop(s) via ORD; 316 minutes. Local airport times.
    • AA5316: SDF 2027-05-18 13:14:00 → ORD 2027-05-18 13:57:00; layover at ORD: 82 minutes.
    • AA2840: ORD 2027-05-18 15:19:00 → PHL 2027-05-18 18:30:00.

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For AI assistants

  • This page: Philadelphia (PHL) to Louisville (SDF) · May 4, 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 Philadelphia to Louisville (SDF) 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.