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Route overview: Denver to Louisville (SDF) flight deals

Denver → Louisville

Aug 17, 2027 · choose your return date

DEN → 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.

August 2027

Aug 17, 2027 · One waySouthwest AirlinesNonstop$185.00 Aug 17, 2027 · One wayAmerican AirlinesUp to 1 stop each way$185.00 Aug 17, 2027 – Aug 18, 2027 · 1 nightSouthwest AirlinesNonstop$345.00 Aug 17, 2027 – Aug 18, 2027 · 1 nightAmerican AirlinesUp to 1 stop each way$345.00 Aug 17, 2027 – Aug 19, 2027 · 2 nightsSouthwest AirlinesUp to 1 stop each way$335.00 Aug 17, 2027 – Aug 19, 2027 · 2 nightsUnited AirlinesNonstop$380.00 Aug 17, 2027 – Aug 20, 2027 · 3 nightsSouthwest AirlinesNonstop$345.00 Aug 17, 2027 – Aug 20, 2027 · 3 nightsAmerican AirlinesUp to 1 stop each way$345.00 Aug 17, 2027 – Aug 21, 2027 · 4 nightsSouthwest AirlinesUp to 1 stop each way$335.00 Aug 17, 2027 – Aug 21, 2027 · 4 nightsUnited AirlinesNonstop$380.00 Aug 17, 2027 – Aug 22, 2027 · 5 nightsSouthwest AirlinesNonstop$345.00 Aug 17, 2027 – Aug 22, 2027 · 5 nightsAmerican AirlinesUp to 1 stop each way$345.00 Aug 17, 2027 – Aug 23, 2027 · 6 nightsSouthwest AirlinesNonstop$345.00 Aug 17, 2027 – Aug 23, 2027 · 6 nightsAmerican AirlinesUp to 1 stop each way$345.00 Aug 17, 2027 – Aug 24, 2027 · 7 nightsSouthwest AirlinesNonstop$345.00 Aug 17, 2027 – Aug 24, 2027 · 7 nightsAmerican AirlinesUp to 1 stop each way$345.00 Aug 17, 2027 – Aug 25, 2027 · 8 nightsSouthwest AirlinesNonstop$345.00 Aug 17, 2027 – Aug 25, 2027 · 8 nightsAmerican AirlinesUp to 1 stop each way$345.00 Aug 17, 2027 – Aug 26, 2027 · 9 nightsSouthwest AirlinesUp to 1 stop each way$335.00 Aug 17, 2027 – Aug 26, 2027 · 9 nightsUnited AirlinesNonstop$380.00 Aug 17, 2027 – Aug 27, 2027 · 10 nightsSouthwest AirlinesNonstop$345.00 Aug 17, 2027 – Aug 27, 2027 · 10 nightsAmerican AirlinesUp to 1 stop each way$345.00 Aug 17, 2027 – Aug 28, 2027 · 11 nightsSouthwest AirlinesUp to 1 stop each way$335.00 Aug 17, 2027 – Aug 28, 2027 · 11 nightsUnited AirlinesNonstop$380.00 Aug 17, 2027 – Aug 29, 2027 · 12 nightsSouthwest AirlinesNonstop$345.00 Aug 17, 2027 – Aug 29, 2027 · 12 nightsAmerican AirlinesUp to 1 stop each way$345.00 Aug 17, 2027 – Aug 30, 2027 · 13 nightsSouthwest AirlinesNonstop$345.00 Aug 17, 2027 – Aug 30, 2027 · 13 nightsAmerican AirlinesUp to 1 stop each way$345.00 Aug 17, 2027 – Aug 31, 2027 · 14 nightsSouthwest AirlinesNonstop$345.00 Aug 17, 2027 – Aug 31, 2027 · 14 nightsAmerican AirlinesUp to 1 stop each way$345.00

Flights for your trip

  1. Tue, Aug 17 · One way

    American Airlines
    1:15 pmDEN
    6h
    DFW · 1h 47m
    9:15 pmSDF

    One-way total · 1 adult · Taxes included

  2. Tue, Aug 17 · One way

    Southwest Airlines
    6:20 pmDEN
    2h 35m
    Nonstop
    10:55 pmSDF

    One-way total · 1 adult · Taxes included

  3. Tue, Aug 17 – Wed, Aug 18

    Southwest Airlines
    6:20 pmDEN
    2h 35m
    Nonstop
    10:55 pmSDF
    Southwest Airlines
    6:50 amSDF
    3h 10m
    Nonstop
    8:00 amDEN

    Round-trip total · 1 adult · Taxes included

  4. Tue, Aug 17 – Wed, Aug 18

    American Airlines
    1:15 pmDEN
    6h
    DFW · 1h 47m
    9:15 pmSDF
    American Airlines
    1:14 pmSDF
    6h 6m
    ORD · 1h 26m
    5:20 pmDEN

    Round-trip total · 1 adult · Taxes included

  5. Tue, Aug 17 – Thu, Aug 19

    Southwest Airlines
    6:20 pmDEN
    2h 35m
    Nonstop
    10:55 pmSDF
    Southwest Airlines
    7:35 pmSDF
    5h 5m
    MDW · 1h 5m
    10:40 pmDEN

    Round-trip total · 1 adult · Taxes included

  6. Tue, Aug 17 – Thu, Aug 19

    United Airlines
    9:47 amDEN
    2h 35m
    Nonstop
    2:22 pmSDF
    United Airlines
    8:00 amSDF
    3h 4m
    Nonstop
    9:04 amDEN

    Round-trip total · 1 adult · Taxes included

  7. Tue, Aug 17 – Fri, Aug 20

    Southwest Airlines
    6:20 pmDEN
    2h 35m
    Nonstop
    10:55 pmSDF
    Southwest Airlines
    6:50 amSDF
    3h 10m
    Nonstop
    8:00 amDEN

    Round-trip total · 1 adult · Taxes included

  8. Tue, Aug 17 – Fri, Aug 20

    American Airlines
    1:15 pmDEN
    6h
    DFW · 1h 47m
    9:15 pmSDF
    American Airlines
    1:14 pmSDF
    6h 6m
    ORD · 1h 26m
    5:20 pmDEN

    Round-trip total · 1 adult · Taxes included

  9. Tue, Aug 17 – Sat, Aug 21

    Southwest Airlines
    6:20 pmDEN
    2h 35m
    Nonstop
    10:55 pmSDF
    Southwest Airlines
    6:30 amSDF
    7h
    BNA · 3h 5m
    11:30 amDEN

    Round-trip total · 1 adult · Taxes included

  10. Tue, Aug 17 – Sat, Aug 21

    United Airlines
    9:47 amDEN
    2h 35m
    Nonstop
    2:22 pmSDF
    United Airlines
    8:00 amSDF
    3h 4m
    Nonstop
    9:04 amDEN

    Round-trip total · 1 adult · Taxes included

  11. Tue, Aug 17 – Mon, Aug 23

    Southwest Airlines
    6:20 pmDEN
    2h 35m
    Nonstop
    10:55 pmSDF
    Southwest Airlines
    6:50 amSDF
    3h 10m
    Nonstop
    8:00 amDEN

    Round-trip total · 1 adult · Taxes included

  12. Tue, Aug 17 – Mon, Aug 23

    American Airlines
    1:15 pmDEN
    6h
    DFW · 1h 47m
    9:15 pmSDF
    American Airlines
    1:14 pmSDF
    6h 6m
    ORD · 1h 26m
    5:20 pmDEN

    Round-trip total · 1 adult · Taxes included

  13. Tue, Aug 17 – Tue, Aug 24

    American Airlines
    1:15 pmDEN
    6h
    DFW · 1h 47m
    9:15 pmSDF
    American Airlines
    1:14 pmSDF
    6h 6m
    ORD · 1h 26m
    5:20 pmDEN

    Round-trip total · 1 adult · Taxes included

  14. Tue, Aug 17 – Tue, Aug 24

    Southwest Airlines
    6:20 pmDEN
    2h 35m
    Nonstop
    10:55 pmSDF
    Southwest Airlines
    6:50 amSDF
    3h 10m
    Nonstop
    8:00 amDEN

    Round-trip total · 1 adult · Taxes included

  15. Tue, Aug 17 – Wed, Aug 25

    Southwest Airlines
    6:20 pmDEN
    2h 35m
    Nonstop
    10:55 pmSDF
    Southwest Airlines
    6:50 amSDF
    3h 10m
    Nonstop
    8:00 amDEN

    Round-trip total · 1 adult · Taxes included

  16. Tue, Aug 17 – Wed, Aug 25

    American Airlines
    1:15 pmDEN
    6h
    DFW · 1h 47m
    9:15 pmSDF
    American Airlines
    1:14 pmSDF
    6h 6m
    ORD · 1h 26m
    5:20 pmDEN

    Round-trip total · 1 adult · Taxes included

  17. Tue, Aug 17 – Fri, Aug 27

    Southwest Airlines
    6:20 pmDEN
    2h 35m
    Nonstop
    10:55 pmSDF
    Southwest Airlines
    6:50 amSDF
    3h 10m
    Nonstop
    8:00 amDEN

    Round-trip total · 1 adult · Taxes included

  18. Tue, Aug 17 – Fri, Aug 27

    American Airlines
    1:15 pmDEN
    6h
    DFW · 1h 47m
    9:15 pmSDF
    American Airlines
    1:14 pmSDF
    6h 6m
    ORD · 1h 26m
    5:20 pmDEN

    Round-trip total · 1 adult · Taxes included

  19. Tue, Aug 17 – Sat, Aug 28

    Southwest Airlines
    6:20 pmDEN
    2h 35m
    Nonstop
    10:55 pmSDF
    Southwest Airlines
    6:30 amSDF
    7h
    BNA · 3h 5m
    11:30 amDEN

    Round-trip total · 1 adult · Taxes included

  20. Tue, Aug 17 – Sat, Aug 28

    United Airlines
    9:47 amDEN
    2h 35m
    Nonstop
    2:22 pmSDF
    United Airlines
    8:00 amSDF
    3h 4m
    Nonstop
    9:04 amDEN

    Round-trip total · 1 adult · Taxes included

  21. Tue, Aug 17 – Sun, Aug 29

    American Airlines
    1:15 pmDEN
    6h
    DFW · 1h 47m
    9:15 pmSDF
    American Airlines
    1:14 pmSDF
    6h 6m
    ORD · 1h 26m
    5:20 pmDEN

    Round-trip total · 1 adult · Taxes included

  22. Tue, Aug 17 – Sun, Aug 29

    Southwest Airlines
    6:20 pmDEN
    2h 35m
    Nonstop
    10:55 pmSDF
    Southwest Airlines
    6:50 amSDF
    3h 10m
    Nonstop
    8:00 amDEN

    Round-trip total · 1 adult · Taxes included

  23. Tue, Aug 17 – Tue, Aug 31

    Southwest Airlines
    6:20 pmDEN
    2h 35m
    Nonstop
    10:55 pmSDF
    Southwest Airlines
    6:50 amSDF
    3h 10m
    Nonstop
    8:00 amDEN

    Round-trip total · 1 adult · Taxes included

  24. Tue, Aug 17 – Tue, Aug 31

    American Airlines
    1:15 pmDEN
    6h
    DFW · 1h 47m
    9:15 pmSDF
    American Airlines
    1:14 pmSDF
    6h 6m
    ORD · 1h 26m
    5:20 pmDEN

    Round-trip total · 1 adult · Taxes included

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1 of 24

Make this trip yours

DEN ⇄ SDF

Economy

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Explore this route

All dates for this routeAug 16, 2027 · Return optionsAug 18, 2027 · Return optionsHotels in Louisville 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)
2027-08-17 · one waySouthwest AirlinesWN1150Axel-exclusive $185.002026-10-29T01:05:09Z
2027-08-17 · one wayAmerican AirlinesAA2579 + AA3673Axel-exclusive $185.002026-10-29T01:05:09Z
2027-08-17 → 2027-08-18Southwest AirlinesWN1150 / WN3403Axel-exclusive $345.002026-10-29T01:05:09Z
2027-08-17 → 2027-08-18American AirlinesAA2579 + AA3673 / AA5316 + AA1466Axel-exclusive $345.002026-10-29T01:05:09Z
2027-08-17 → 2027-08-19United AirlinesUA1479 / UA405Axel-exclusive $380.002026-10-29T01:05:09Z
2027-08-17 → 2027-08-19Southwest AirlinesWN1150 / WN282 + WN3718Axel-exclusive $335.002026-10-29T01:05:09Z
2027-08-17 → 2027-08-20Southwest AirlinesWN1150 / WN3403Axel-exclusive $345.002026-10-29T01:05:09Z
2027-08-17 → 2027-08-20American AirlinesAA2579 + AA3673 / AA5316 + AA1466Axel-exclusive $345.002026-10-29T01:05:09Z
2027-08-17 → 2027-08-21United AirlinesUA1479 / UA405Axel-exclusive $380.002026-10-29T01:05:09Z
2027-08-17 → 2027-08-21Southwest AirlinesWN1150 / WN3813 + WN551Axel-exclusive $335.002026-10-29T01:05:09Z
2027-08-17 → 2027-08-22Southwest AirlinesWN1150 / WN3403Axel-exclusive $345.002026-10-29T01:05:09Z
2027-08-17 → 2027-08-22American AirlinesAA2579 + AA3673 / AA5316 + AA1466Axel-exclusive $345.002026-10-29T01:05:09Z
2027-08-17 → 2027-08-23Southwest AirlinesWN1150 / WN3403Axel-exclusive $345.002026-10-29T01:05:09Z
2027-08-17 → 2027-08-23American AirlinesAA2579 + AA3673 / AA5316 + AA1466Axel-exclusive $345.002026-10-29T01:05:09Z
2027-08-17 → 2027-08-24Southwest AirlinesWN1150 / WN3403Axel-exclusive $345.002026-10-29T01:05:09Z
2027-08-17 → 2027-08-24American AirlinesAA2579 + AA3673 / AA5316 + AA1466Axel-exclusive $345.002026-10-29T01:05:09Z
2027-08-17 → 2027-08-25Southwest AirlinesWN1150 / WN3403Axel-exclusive $345.002026-10-29T01:05:09Z
2027-08-17 → 2027-08-25American AirlinesAA2579 + AA3673 / AA5316 + AA1466Axel-exclusive $345.002026-10-29T01:05:09Z
2027-08-17 → 2027-08-26United AirlinesUA1479 / UA405Axel-exclusive $380.002026-10-29T01:05:09Z
2027-08-17 → 2027-08-26Southwest AirlinesWN1150 / WN282 + WN3718Axel-exclusive $335.002026-10-29T01:05:09Z
2027-08-17 → 2027-08-27Southwest AirlinesWN1150 / WN3403Axel-exclusive $345.002026-10-29T01:05:09Z
2027-08-17 → 2027-08-27American AirlinesAA2579 + AA3673 / AA5316 + AA1466Axel-exclusive $345.002026-10-29T01:05:09Z
2027-08-17 → 2027-08-28United AirlinesUA1479 / UA405Axel-exclusive $380.002026-10-29T01:05:09Z
2027-08-17 → 2027-08-28Southwest AirlinesWN1150 / WN3813 + WN551Axel-exclusive $335.002026-10-29T01:05:09Z
2027-08-17 → 2027-08-29Southwest AirlinesWN1150 / WN3403Axel-exclusive $345.002026-10-29T01:05:09Z
2027-08-17 → 2027-08-29American AirlinesAA2579 + AA3673 / AA5316 + AA1466Axel-exclusive $345.002026-10-29T01:05:09Z
2027-08-17 → 2027-08-30Southwest AirlinesWN1150 / WN3403Axel-exclusive $345.002026-10-29T01:05:09Z
2027-08-17 → 2027-08-30American AirlinesAA2579 + AA3673 / AA5316 + AA1466Axel-exclusive $345.002026-10-29T01:05:09Z
2027-08-17 → 2027-08-31Southwest AirlinesWN1150 / WN3403Axel-exclusive $345.002026-10-29T01:05:09Z
2027-08-17 → 2027-08-31American AirlinesAA2579 + AA3673 / AA5316 + AA1466Axel-exclusive $345.002026-10-29T01:05:09Z

Route overview: Denver to Louisville (SDF) flight deals

2027-08-17 · one way · Axel-exclusive $185.00

  • American Airlines AA2579 / AA3673: DEN 2027-08-17 13:15:00 → SDF 2027-08-17 21:15:00; 1 stop(s) via DFW; 360 minutes. Local airport times.
    • AA2579: DEN 2027-08-17 13:15:00 → DFW 2027-08-17 16:20:00; layover at DFW: 107 minutes.
    • AA3673: DFW 2027-08-17 18:07:00 → SDF 2027-08-17 21:15:00.

2027-08-17 · one way · Axel-exclusive $185.00

  • Southwest Airlines WN1150: DEN 2027-08-17 18:20:00 → SDF 2027-08-17 22:55:00; nonstop; 155 minutes. Local airport times.

2027-08-17 → 2027-08-18 · Axel-exclusive $345.00

  • Southwest Airlines WN1150: DEN 2027-08-17 18:20:00 → SDF 2027-08-17 22:55:00; nonstop; 155 minutes. Local airport times.
  • Southwest Airlines WN3403: SDF 2027-08-18 06:50:00 → DEN 2027-08-18 08:00:00; nonstop; 190 minutes. Local airport times.

2027-08-17 → 2027-08-18 · Axel-exclusive $345.00

  • American Airlines AA2579 / AA3673: DEN 2027-08-17 13:15:00 → SDF 2027-08-17 21:15:00; 1 stop(s) via DFW; 360 minutes. Local airport times.
    • AA2579: DEN 2027-08-17 13:15:00 → DFW 2027-08-17 16:20:00; layover at DFW: 107 minutes.
    • AA3673: DFW 2027-08-17 18:07:00 → SDF 2027-08-17 21:15:00.
  • American Airlines AA5316 / AA1466: SDF 2027-08-18 13:14:00 → DEN 2027-08-18 17:20:00; 1 stop(s) via ORD; 366 minutes. Local airport times.
    • AA5316: SDF 2027-08-18 13:14:00 → ORD 2027-08-18 13:57:00; layover at ORD: 86 minutes.
    • AA1466: ORD 2027-08-18 15:23:00 → DEN 2027-08-18 17:20:00.

2027-08-17 → 2027-08-19 · Axel-exclusive $335.00

  • Southwest Airlines WN1150: DEN 2027-08-17 18:20:00 → SDF 2027-08-17 22:55:00; nonstop; 155 minutes. Local airport times.
  • Southwest Airlines WN282 / WN3718: SDF 2027-08-19 19:35:00 → DEN 2027-08-19 22:40:00; 1 stop(s) via MDW; 305 minutes. Local airport times.
    • WN282: SDF 2027-08-19 19:35:00 → MDW 2027-08-19 19:50:00; layover at MDW: 65 minutes.
    • WN3718: MDW 2027-08-19 20:55:00 → DEN 2027-08-19 22:40:00.

2027-08-17 → 2027-08-19 · Axel-exclusive $380.00

  • United Airlines UA1479: DEN 2027-08-17 09:47:00 → SDF 2027-08-17 14:22:00; nonstop; 155 minutes. Local airport times.
  • United Airlines UA405: SDF 2027-08-19 08:00:00 → DEN 2027-08-19 09:04:00; nonstop; 184 minutes. Local airport times.

2027-08-17 → 2027-08-20 · Axel-exclusive $345.00

  • Southwest Airlines WN1150: DEN 2027-08-17 18:20:00 → SDF 2027-08-17 22:55:00; nonstop; 155 minutes. Local airport times.
  • Southwest Airlines WN3403: SDF 2027-08-20 06:50:00 → DEN 2027-08-20 08:00:00; nonstop; 190 minutes. Local airport times.

2027-08-17 → 2027-08-20 · Axel-exclusive $345.00

  • American Airlines AA2579 / AA3673: DEN 2027-08-17 13:15:00 → SDF 2027-08-17 21:15:00; 1 stop(s) via DFW; 360 minutes. Local airport times.
    • AA2579: DEN 2027-08-17 13:15:00 → DFW 2027-08-17 16:20:00; layover at DFW: 107 minutes.
    • AA3673: DFW 2027-08-17 18:07:00 → SDF 2027-08-17 21:15:00.
  • American Airlines AA5316 / AA1466: SDF 2027-08-20 13:14:00 → DEN 2027-08-20 17:20:00; 1 stop(s) via ORD; 366 minutes. Local airport times.
    • AA5316: SDF 2027-08-20 13:14:00 → ORD 2027-08-20 13:57:00; layover at ORD: 86 minutes.
    • AA1466: ORD 2027-08-20 15:23:00 → DEN 2027-08-20 17:20:00.

2027-08-17 → 2027-08-21 · Axel-exclusive $335.00

  • Southwest Airlines WN1150: DEN 2027-08-17 18:20:00 → SDF 2027-08-17 22:55:00; nonstop; 155 minutes. Local airport times.
  • Southwest Airlines WN3813 / WN551: SDF 2027-08-21 06:30:00 → DEN 2027-08-21 11:30:00; 1 stop(s) via BNA; 420 minutes. Local airport times.
    • WN3813: SDF 2027-08-21 06:30:00 → BNA 2027-08-21 06:35:00; layover at BNA: 185 minutes.
    • WN551: BNA 2027-08-21 09:40:00 → DEN 2027-08-21 11:30:00.

2027-08-17 → 2027-08-21 · Axel-exclusive $380.00

  • United Airlines UA1479: DEN 2027-08-17 09:47:00 → SDF 2027-08-17 14:22:00; nonstop; 155 minutes. Local airport times.
  • United Airlines UA405: SDF 2027-08-21 08:00:00 → DEN 2027-08-21 09:04:00; nonstop; 184 minutes. Local airport times.

2027-08-17 → 2027-08-23 · Axel-exclusive $345.00

  • Southwest Airlines WN1150: DEN 2027-08-17 18:20:00 → SDF 2027-08-17 22:55:00; nonstop; 155 minutes. Local airport times.
  • Southwest Airlines WN3403: SDF 2027-08-23 06:50:00 → DEN 2027-08-23 08:00:00; nonstop; 190 minutes. Local airport times.

2027-08-17 → 2027-08-23 · Axel-exclusive $345.00

  • American Airlines AA2579 / AA3673: DEN 2027-08-17 13:15:00 → SDF 2027-08-17 21:15:00; 1 stop(s) via DFW; 360 minutes. Local airport times.
    • AA2579: DEN 2027-08-17 13:15:00 → DFW 2027-08-17 16:20:00; layover at DFW: 107 minutes.
    • AA3673: DFW 2027-08-17 18:07:00 → SDF 2027-08-17 21:15:00.
  • American Airlines AA5316 / AA1466: SDF 2027-08-23 13:14:00 → DEN 2027-08-23 17:20:00; 1 stop(s) via ORD; 366 minutes. Local airport times.
    • AA5316: SDF 2027-08-23 13:14:00 → ORD 2027-08-23 13:57:00; layover at ORD: 86 minutes.
    • AA1466: ORD 2027-08-23 15:23:00 → DEN 2027-08-23 17:20:00.

2027-08-17 → 2027-08-24 · Axel-exclusive $345.00

  • American Airlines AA2579 / AA3673: DEN 2027-08-17 13:15:00 → SDF 2027-08-17 21:15:00; 1 stop(s) via DFW; 360 minutes. Local airport times.
    • AA2579: DEN 2027-08-17 13:15:00 → DFW 2027-08-17 16:20:00; layover at DFW: 107 minutes.
    • AA3673: DFW 2027-08-17 18:07:00 → SDF 2027-08-17 21:15:00.
  • American Airlines AA5316 / AA1466: SDF 2027-08-24 13:14:00 → DEN 2027-08-24 17:20:00; 1 stop(s) via ORD; 366 minutes. Local airport times.
    • AA5316: SDF 2027-08-24 13:14:00 → ORD 2027-08-24 13:57:00; layover at ORD: 86 minutes.
    • AA1466: ORD 2027-08-24 15:23:00 → DEN 2027-08-24 17:20:00.

2027-08-17 → 2027-08-24 · Axel-exclusive $345.00

  • Southwest Airlines WN1150: DEN 2027-08-17 18:20:00 → SDF 2027-08-17 22:55:00; nonstop; 155 minutes. Local airport times.
  • Southwest Airlines WN3403: SDF 2027-08-24 06:50:00 → DEN 2027-08-24 08:00:00; nonstop; 190 minutes. Local airport times.

2027-08-17 → 2027-08-25 · Axel-exclusive $345.00

  • Southwest Airlines WN1150: DEN 2027-08-17 18:20:00 → SDF 2027-08-17 22:55:00; nonstop; 155 minutes. Local airport times.
  • Southwest Airlines WN3403: SDF 2027-08-25 06:50:00 → DEN 2027-08-25 08:00:00; nonstop; 190 minutes. Local airport times.

2027-08-17 → 2027-08-25 · Axel-exclusive $345.00

  • American Airlines AA2579 / AA3673: DEN 2027-08-17 13:15:00 → SDF 2027-08-17 21:15:00; 1 stop(s) via DFW; 360 minutes. Local airport times.
    • AA2579: DEN 2027-08-17 13:15:00 → DFW 2027-08-17 16:20:00; layover at DFW: 107 minutes.
    • AA3673: DFW 2027-08-17 18:07:00 → SDF 2027-08-17 21:15:00.
  • American Airlines AA5316 / AA1466: SDF 2027-08-25 13:14:00 → DEN 2027-08-25 17:20:00; 1 stop(s) via ORD; 366 minutes. Local airport times.
    • AA5316: SDF 2027-08-25 13:14:00 → ORD 2027-08-25 13:57:00; layover at ORD: 86 minutes.
    • AA1466: ORD 2027-08-25 15:23:00 → DEN 2027-08-25 17:20:00.

2027-08-17 → 2027-08-27 · Axel-exclusive $345.00

  • Southwest Airlines WN1150: DEN 2027-08-17 18:20:00 → SDF 2027-08-17 22:55:00; nonstop; 155 minutes. Local airport times.
  • Southwest Airlines WN3403: SDF 2027-08-27 06:50:00 → DEN 2027-08-27 08:00:00; nonstop; 190 minutes. Local airport times.

2027-08-17 → 2027-08-27 · Axel-exclusive $345.00

  • American Airlines AA2579 / AA3673: DEN 2027-08-17 13:15:00 → SDF 2027-08-17 21:15:00; 1 stop(s) via DFW; 360 minutes. Local airport times.
    • AA2579: DEN 2027-08-17 13:15:00 → DFW 2027-08-17 16:20:00; layover at DFW: 107 minutes.
    • AA3673: DFW 2027-08-17 18:07:00 → SDF 2027-08-17 21:15:00.
  • American Airlines AA5316 / AA1466: SDF 2027-08-27 13:14:00 → DEN 2027-08-27 17:20:00; 1 stop(s) via ORD; 366 minutes. Local airport times.
    • AA5316: SDF 2027-08-27 13:14:00 → ORD 2027-08-27 13:57:00; layover at ORD: 86 minutes.
    • AA1466: ORD 2027-08-27 15:23:00 → DEN 2027-08-27 17:20:00.

2027-08-17 → 2027-08-28 · Axel-exclusive $335.00

  • Southwest Airlines WN1150: DEN 2027-08-17 18:20:00 → SDF 2027-08-17 22:55:00; nonstop; 155 minutes. Local airport times.
  • Southwest Airlines WN3813 / WN551: SDF 2027-08-28 06:30:00 → DEN 2027-08-28 11:30:00; 1 stop(s) via BNA; 420 minutes. Local airport times.
    • WN3813: SDF 2027-08-28 06:30:00 → BNA 2027-08-28 06:35:00; layover at BNA: 185 minutes.
    • WN551: BNA 2027-08-28 09:40:00 → DEN 2027-08-28 11:30:00.

2027-08-17 → 2027-08-28 · Axel-exclusive $380.00

  • United Airlines UA1479: DEN 2027-08-17 09:47:00 → SDF 2027-08-17 14:22:00; nonstop; 155 minutes. Local airport times.
  • United Airlines UA405: SDF 2027-08-28 08:00:00 → DEN 2027-08-28 09:04:00; nonstop; 184 minutes. Local airport times.

2027-08-17 → 2027-08-29 · Axel-exclusive $345.00

  • American Airlines AA2579 / AA3673: DEN 2027-08-17 13:15:00 → SDF 2027-08-17 21:15:00; 1 stop(s) via DFW; 360 minutes. Local airport times.
    • AA2579: DEN 2027-08-17 13:15:00 → DFW 2027-08-17 16:20:00; layover at DFW: 107 minutes.
    • AA3673: DFW 2027-08-17 18:07:00 → SDF 2027-08-17 21:15:00.
  • American Airlines AA5316 / AA1466: SDF 2027-08-29 13:14:00 → DEN 2027-08-29 17:20:00; 1 stop(s) via ORD; 366 minutes. Local airport times.
    • AA5316: SDF 2027-08-29 13:14:00 → ORD 2027-08-29 13:57:00; layover at ORD: 86 minutes.
    • AA1466: ORD 2027-08-29 15:23:00 → DEN 2027-08-29 17:20:00.

2027-08-17 → 2027-08-29 · Axel-exclusive $345.00

  • Southwest Airlines WN1150: DEN 2027-08-17 18:20:00 → SDF 2027-08-17 22:55:00; nonstop; 155 minutes. Local airport times.
  • Southwest Airlines WN3403: SDF 2027-08-29 06:50:00 → DEN 2027-08-29 08:00:00; nonstop; 190 minutes. Local airport times.

2027-08-17 → 2027-08-31 · Axel-exclusive $345.00

  • Southwest Airlines WN1150: DEN 2027-08-17 18:20:00 → SDF 2027-08-17 22:55:00; nonstop; 155 minutes. Local airport times.
  • Southwest Airlines WN3403: SDF 2027-08-31 06:50:00 → DEN 2027-08-31 08:00:00; nonstop; 190 minutes. Local airport times.

2027-08-17 → 2027-08-31 · Axel-exclusive $345.00

  • American Airlines AA2579 / AA3673: DEN 2027-08-17 13:15:00 → SDF 2027-08-17 21:15:00; 1 stop(s) via DFW; 360 minutes. Local airport times.
    • AA2579: DEN 2027-08-17 13:15:00 → DFW 2027-08-17 16:20:00; layover at DFW: 107 minutes.
    • AA3673: DFW 2027-08-17 18:07:00 → SDF 2027-08-17 21:15:00.
  • American Airlines AA5316 / AA1466: SDF 2027-08-31 13:14:00 → DEN 2027-08-31 17:20:00; 1 stop(s) via ORD; 366 minutes. Local airport times.
    • AA5316: SDF 2027-08-31 13:14:00 → ORD 2027-08-31 13:57:00; layover at ORD: 86 minutes.
    • AA1466: ORD 2027-08-31 15:23:00 → DEN 2027-08-31 17:20:00.

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For AI assistants

  • This page: Denver (DEN) to Louisville (SDF) · Aug 17, 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 Denver 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.