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Route overview: Denver to Louisville (SDF) flight deals

Denver → Louisville

May 13, 2027 · choose your return date

DEN → SDF1 adulteconomyOne way and round trips

30 flight options · 2 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 13, 2027 · One waySouthwest AirlinesNonstop$185.00 May 13, 2027 · One wayAmerican AirlinesUp to 1 stop each way$185.00 May 13, 2027 – May 14, 2027 · 1 nightSouthwest AirlinesNonstop$345.00 May 13, 2027 – May 14, 2027 · 1 nightAmerican AirlinesUp to 1 stop each way$345.00 May 13, 2027 – May 15, 2027 · 2 nightsSouthwest AirlinesUp to 1 stop each way$335.00 May 13, 2027 – May 15, 2027 · 2 nightsAmerican AirlinesUp to 1 stop each way$345.00 May 13, 2027 – May 16, 2027 · 3 nightsSouthwest AirlinesNonstop$345.00 May 13, 2027 – May 16, 2027 · 3 nightsAmerican AirlinesUp to 1 stop each way$345.00 May 13, 2027 – May 17, 2027 · 4 nightsSouthwest AirlinesNonstop$345.00 May 13, 2027 – May 17, 2027 · 4 nightsAmerican AirlinesUp to 1 stop each way$345.00 May 13, 2027 – May 18, 2027 · 5 nightsSouthwest AirlinesNonstop$345.00 May 13, 2027 – May 18, 2027 · 5 nightsAmerican AirlinesUp to 1 stop each way$345.00 May 13, 2027 – May 19, 2027 · 6 nightsSouthwest AirlinesNonstop$345.00 May 13, 2027 – May 19, 2027 · 6 nightsAmerican AirlinesUp to 1 stop each way$345.00 May 13, 2027 – May 20, 2027 · 7 nightsSouthwest AirlinesUp to 1 stop each way$335.00 May 13, 2027 – May 20, 2027 · 7 nightsAmerican AirlinesUp to 1 stop each way$345.00 May 13, 2027 – May 21, 2027 · 8 nightsSouthwest AirlinesNonstop$345.00 May 13, 2027 – May 21, 2027 · 8 nightsAmerican AirlinesUp to 1 stop each way$345.00 May 13, 2027 – May 22, 2027 · 9 nightsSouthwest AirlinesUp to 1 stop each way$335.00 May 13, 2027 – May 22, 2027 · 9 nightsAmerican AirlinesUp to 1 stop each way$345.00 May 13, 2027 – May 23, 2027 · 10 nightsSouthwest AirlinesNonstop$345.00 May 13, 2027 – May 23, 2027 · 10 nightsAmerican AirlinesUp to 1 stop each way$345.00 May 13, 2027 – May 24, 2027 · 11 nightsSouthwest AirlinesNonstop$345.00 May 13, 2027 – May 24, 2027 · 11 nightsAmerican AirlinesUp to 1 stop each way$345.00 May 13, 2027 – May 25, 2027 · 12 nightsSouthwest AirlinesNonstop$345.00 May 13, 2027 – May 25, 2027 · 12 nightsAmerican AirlinesUp to 1 stop each way$345.00 May 13, 2027 – May 26, 2027 · 13 nightsSouthwest AirlinesNonstop$345.00 May 13, 2027 – May 26, 2027 · 13 nightsAmerican AirlinesUp to 1 stop each way$345.00 May 13, 2027 – May 27, 2027 · 14 nightsSouthwest AirlinesUp to 1 stop each way$359.38 May 13, 2027 – May 27, 2027 · 14 nightsAmerican AirlinesUp to 1 stop each way$370.88

Flights for your trip

  1. Thu, May 13 · One way

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

    One-way total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  2. Thu, May 13 · One way

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

    One-way total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  3. Thu, May 13 – Fri, May 14

    American Airlines
    1:15 pmDEN
    6h
    DFW · 1h 47m
    9:15 pmSDF
    American Airlines
    5:02 amSDF
    7h 8m
    CLT · 1h 55m
    10:10 amDEN

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  4. Thu, May 13 – Fri, May 14

    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

    Availability is checked when you select these flights.

  5. Thu, May 13 – Sat, May 15

    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

    Availability is checked when you select these flights.

  6. Thu, May 13 – Sat, May 15

    American Airlines
    1:15 pmDEN
    6h
    DFW · 1h 47m
    9:15 pmSDF
    American Airlines
    5:02 amSDF
    7h 8m
    CLT · 1h 55m
    10:10 amDEN

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  7. Thu, May 13 – Sun, May 16

    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

    Availability is checked when you select these flights.

  8. Thu, May 13 – Sun, May 16

    American Airlines
    1:15 pmDEN
    6h
    DFW · 1h 47m
    9:15 pmSDF
    American Airlines
    5:02 amSDF
    7h 8m
    CLT · 1h 55m
    10:10 amDEN

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  9. Thu, May 13 – Mon, May 17

    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

    Availability is checked when you select these flights.

  10. Thu, May 13 – Mon, May 17

    American Airlines
    1:15 pmDEN
    6h
    DFW · 1h 47m
    9:15 pmSDF
    American Airlines
    5:02 amSDF
    7h 8m
    CLT · 1h 55m
    10:10 amDEN

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  11. Thu, May 13 – Wed, May 19

    American Airlines
    1:15 pmDEN
    6h
    DFW · 1h 47m
    9:15 pmSDF
    American Airlines
    5:02 amSDF
    7h 8m
    CLT · 1h 55m
    10:10 amDEN

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  12. Thu, May 13 – Wed, May 19

    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

    Availability is checked when you select these flights.

  13. Thu, May 13 – Thu, May 20

    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

    Availability is checked when you select these flights.

  14. Thu, May 13 – Thu, May 20

    American Airlines
    1:15 pmDEN
    6h
    DFW · 1h 47m
    9:15 pmSDF
    American Airlines
    5:02 amSDF
    7h 8m
    CLT · 1h 55m
    10:10 amDEN

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  15. Thu, May 13 – Fri, May 21

    American Airlines
    1:15 pmDEN
    6h
    DFW · 1h 47m
    9:15 pmSDF
    American Airlines
    5:02 amSDF
    7h 8m
    CLT · 1h 55m
    10:10 amDEN

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  16. Thu, May 13 – Fri, May 21

    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

    Availability is checked when you select these flights.

  17. Thu, May 13 – Sun, May 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

    Availability is checked when you select these flights.

  18. Thu, May 13 – Sun, May 23

    American Airlines
    1:15 pmDEN
    6h
    DFW · 1h 47m
    9:15 pmSDF
    American Airlines
    5:02 amSDF
    7h 8m
    CLT · 1h 55m
    10:10 amDEN

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  19. Thu, May 13 – Mon, May 24

    American Airlines
    1:15 pmDEN
    6h
    DFW · 1h 47m
    9:15 pmSDF
    American Airlines
    5:02 amSDF
    7h 8m
    CLT · 1h 55m
    10:10 amDEN

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  20. Thu, May 13 – Mon, May 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

    Availability is checked when you select these flights.

  21. Thu, May 13 – Tue, May 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

    Availability is checked when you select these flights.

  22. Thu, May 13 – Tue, May 25

    American Airlines
    1:15 pmDEN
    6h
    DFW · 1h 47m
    9:15 pmSDF
    American Airlines
    5:02 amSDF
    7h 8m
    CLT · 1h 55m
    10:10 amDEN

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  23. Thu, May 13 – Thu, May 27

    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

    Availability is checked when you select these flights.

  24. Thu, May 13 – Thu, May 27

    American Airlines
    1:15 pmDEN
    6h
    DFW · 1h 47m
    9:15 pmSDF
    American Airlines
    5:02 amSDF
    7h 8m
    CLT · 1h 55m
    10:10 amDEN

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

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1 of 24

Make this trip yours

DEN ⇄ SDF

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 routeMay 12, 2027 · Return optionsMay 14, 2027 · Return optionsHotels in Louisville 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)
2027-05-13 · one waySouthwest AirlinesWN1150Axel-exclusive $185.002026-10-29T01:05:09Z
2027-05-13 · one wayAmerican AirlinesAA2579 + AA3673Axel-exclusive $185.002026-10-29T01:05:09Z
2027-05-13 → 2027-05-14Southwest AirlinesWN1150 / WN3403Axel-exclusive $345.002026-10-29T01:05:09Z
2027-05-13 → 2027-05-14American AirlinesAA2579 + AA3673 / AA647 + AA1610Axel-exclusive $345.002026-10-29T01:05:09Z
2027-05-13 → 2027-05-15Southwest AirlinesWN1150 / WN3813 + WN551Axel-exclusive $335.002026-10-29T01:05:09Z
2027-05-13 → 2027-05-15American AirlinesAA2579 + AA3673 / AA647 + AA1610Axel-exclusive $345.002026-10-29T01:05:09Z
2027-05-13 → 2027-05-16Southwest AirlinesWN1150 / WN3403Axel-exclusive $345.002026-10-29T01:05:09Z
2027-05-13 → 2027-05-16American AirlinesAA2579 + AA3673 / AA647 + AA1610Axel-exclusive $345.002026-10-29T01:05:09Z
2027-05-13 → 2027-05-17Southwest AirlinesWN1150 / WN3403Axel-exclusive $345.002026-10-29T01:05:09Z
2027-05-13 → 2027-05-17American AirlinesAA2579 + AA3673 / AA647 + AA1610Axel-exclusive $345.002026-10-29T01:05:09Z
2027-05-13 → 2027-05-18Southwest AirlinesWN1150 / WN3403Axel-exclusive $345.002026-10-29T01:05:09Z
2027-05-13 → 2027-05-18American AirlinesAA2579 + AA3673 / AA647 + AA1610Axel-exclusive $345.002026-10-29T01:05:09Z
2027-05-13 → 2027-05-19Southwest AirlinesWN1150 / WN3403Axel-exclusive $345.002026-10-29T01:05:09Z
2027-05-13 → 2027-05-19American AirlinesAA2579 + AA3673 / AA647 + AA1610Axel-exclusive $345.002026-10-29T01:05:09Z
2027-05-13 → 2027-05-20Southwest AirlinesWN1150 / WN282 + WN3718Axel-exclusive $335.002026-10-29T01:05:09Z
2027-05-13 → 2027-05-20American AirlinesAA2579 + AA3673 / AA647 + AA1610Axel-exclusive $345.002026-10-29T01:05:09Z
2027-05-13 → 2027-05-21Southwest AirlinesWN1150 / WN3403Axel-exclusive $345.002026-10-29T01:05:09Z
2027-05-13 → 2027-05-21American AirlinesAA2579 + AA3673 / AA647 + AA1610Axel-exclusive $345.002026-10-29T01:05:09Z
2027-05-13 → 2027-05-22Southwest AirlinesWN1150 / WN3813 + WN551Axel-exclusive $335.002026-10-29T01:05:09Z
2027-05-13 → 2027-05-22American AirlinesAA2579 + AA3673 / AA647 + AA1610Axel-exclusive $345.002026-10-29T01:05:09Z
2027-05-13 → 2027-05-23Southwest AirlinesWN1150 / WN3403Axel-exclusive $345.002026-10-29T01:05:09Z
2027-05-13 → 2027-05-23American AirlinesAA2579 + AA3673 / AA647 + AA1610Axel-exclusive $345.002026-10-29T01:05:09Z
2027-05-13 → 2027-05-24Southwest AirlinesWN1150 / WN3403Axel-exclusive $345.002026-10-29T01:05:09Z
2027-05-13 → 2027-05-24American AirlinesAA2579 + AA3673 / AA647 + AA1610Axel-exclusive $345.002026-10-29T01:05:09Z
2027-05-13 → 2027-05-25Southwest AirlinesWN1150 / WN3403Axel-exclusive $345.002026-10-29T01:05:09Z
2027-05-13 → 2027-05-25American AirlinesAA2579 + AA3673 / AA647 + AA1610Axel-exclusive $345.002026-10-29T01:05:09Z
2027-05-13 → 2027-05-26Southwest AirlinesWN1150 / WN3403Axel-exclusive $345.002026-10-29T01:05:09Z
2027-05-13 → 2027-05-26American AirlinesAA2579 + AA3673 / AA647 + AA1610Axel-exclusive $345.002026-10-29T01:05:09Z
2027-05-13 → 2027-05-27Southwest AirlinesWN1150 / WN282 + WN3718Axel-exclusive $359.382026-10-29T01:05:09Z
2027-05-13 → 2027-05-27American AirlinesAA2579 + AA3673 / AA647 + AA1610Axel-exclusive $370.882026-10-29T01:05:09Z

Route overview: Denver to Louisville (SDF) flight deals

2027-05-13 · one way · Axel-exclusive $185.00

  • American Airlines AA2579 / AA3673: DEN 2027-05-13 13:15:00 → SDF 2027-05-13 21:15:00; 1 stop(s) via DFW; 360 minutes. Local airport times.
    • AA2579: DEN 2027-05-13 13:15:00 → DFW 2027-05-13 16:20:00; layover at DFW: 107 minutes.
    • AA3673: DFW 2027-05-13 18:07:00 → SDF 2027-05-13 21:15:00.

2027-05-13 · one way · Axel-exclusive $185.00

  • Southwest Airlines WN1150: DEN 2027-05-13 18:20:00 → SDF 2027-05-13 22:55:00; nonstop; 155 minutes. Local airport times.

2027-05-13 → 2027-05-14 · Axel-exclusive $345.00

  • American Airlines AA2579 / AA3673: DEN 2027-05-13 13:15:00 → SDF 2027-05-13 21:15:00; 1 stop(s) via DFW; 360 minutes. Local airport times.
    • AA2579: DEN 2027-05-13 13:15:00 → DFW 2027-05-13 16:20:00; layover at DFW: 107 minutes.
    • AA3673: DFW 2027-05-13 18:07:00 → SDF 2027-05-13 21:15:00.
  • American Airlines AA647 / AA1610: SDF 2027-05-14 05:02:00 → DEN 2027-05-14 10:10:00; 1 stop(s) via CLT; 428 minutes. Local airport times.
    • AA647: SDF 2027-05-14 05:02:00 → CLT 2027-05-14 06:30:00; layover at CLT: 115 minutes.
    • AA1610: CLT 2027-05-14 08:25:00 → DEN 2027-05-14 10:10:00.

2027-05-13 → 2027-05-14 · Axel-exclusive $345.00

  • Southwest Airlines WN1150: DEN 2027-05-13 18:20:00 → SDF 2027-05-13 22:55:00; nonstop; 155 minutes. Local airport times.
  • Southwest Airlines WN3403: SDF 2027-05-14 06:50:00 → DEN 2027-05-14 08:00:00; nonstop; 190 minutes. Local airport times.

2027-05-13 → 2027-05-15 · Axel-exclusive $335.00

  • Southwest Airlines WN1150: DEN 2027-05-13 18:20:00 → SDF 2027-05-13 22:55:00; nonstop; 155 minutes. Local airport times.
  • Southwest Airlines WN3813 / WN551: SDF 2027-05-15 06:30:00 → DEN 2027-05-15 11:30:00; 1 stop(s) via BNA; 420 minutes. Local airport times.
    • WN3813: SDF 2027-05-15 06:30:00 → BNA 2027-05-15 06:35:00; layover at BNA: 185 minutes.
    • WN551: BNA 2027-05-15 09:40:00 → DEN 2027-05-15 11:30:00.

2027-05-13 → 2027-05-15 · Axel-exclusive $345.00

  • American Airlines AA2579 / AA3673: DEN 2027-05-13 13:15:00 → SDF 2027-05-13 21:15:00; 1 stop(s) via DFW; 360 minutes. Local airport times.
    • AA2579: DEN 2027-05-13 13:15:00 → DFW 2027-05-13 16:20:00; layover at DFW: 107 minutes.
    • AA3673: DFW 2027-05-13 18:07:00 → SDF 2027-05-13 21:15:00.
  • American Airlines AA647 / AA1610: SDF 2027-05-15 05:02:00 → DEN 2027-05-15 10:10:00; 1 stop(s) via CLT; 428 minutes. Local airport times.
    • AA647: SDF 2027-05-15 05:02:00 → CLT 2027-05-15 06:30:00; layover at CLT: 115 minutes.
    • AA1610: CLT 2027-05-15 08:25:00 → DEN 2027-05-15 10:10:00.

2027-05-13 → 2027-05-16 · Axel-exclusive $345.00

  • Southwest Airlines WN1150: DEN 2027-05-13 18:20:00 → SDF 2027-05-13 22:55:00; nonstop; 155 minutes. Local airport times.
  • Southwest Airlines WN3403: SDF 2027-05-16 06:50:00 → DEN 2027-05-16 08:00:00; nonstop; 190 minutes. Local airport times.

2027-05-13 → 2027-05-16 · Axel-exclusive $345.00

  • American Airlines AA2579 / AA3673: DEN 2027-05-13 13:15:00 → SDF 2027-05-13 21:15:00; 1 stop(s) via DFW; 360 minutes. Local airport times.
    • AA2579: DEN 2027-05-13 13:15:00 → DFW 2027-05-13 16:20:00; layover at DFW: 107 minutes.
    • AA3673: DFW 2027-05-13 18:07:00 → SDF 2027-05-13 21:15:00.
  • American Airlines AA647 / AA1610: SDF 2027-05-16 05:02:00 → DEN 2027-05-16 10:10:00; 1 stop(s) via CLT; 428 minutes. Local airport times.
    • AA647: SDF 2027-05-16 05:02:00 → CLT 2027-05-16 06:30:00; layover at CLT: 115 minutes.
    • AA1610: CLT 2027-05-16 08:25:00 → DEN 2027-05-16 10:10:00.

2027-05-13 → 2027-05-17 · Axel-exclusive $345.00

  • Southwest Airlines WN1150: DEN 2027-05-13 18:20:00 → SDF 2027-05-13 22:55:00; nonstop; 155 minutes. Local airport times.
  • Southwest Airlines WN3403: SDF 2027-05-17 06:50:00 → DEN 2027-05-17 08:00:00; nonstop; 190 minutes. Local airport times.

2027-05-13 → 2027-05-17 · Axel-exclusive $345.00

  • American Airlines AA2579 / AA3673: DEN 2027-05-13 13:15:00 → SDF 2027-05-13 21:15:00; 1 stop(s) via DFW; 360 minutes. Local airport times.
    • AA2579: DEN 2027-05-13 13:15:00 → DFW 2027-05-13 16:20:00; layover at DFW: 107 minutes.
    • AA3673: DFW 2027-05-13 18:07:00 → SDF 2027-05-13 21:15:00.
  • American Airlines AA647 / AA1610: SDF 2027-05-17 05:02:00 → DEN 2027-05-17 10:10:00; 1 stop(s) via CLT; 428 minutes. Local airport times.
    • AA647: SDF 2027-05-17 05:02:00 → CLT 2027-05-17 06:30:00; layover at CLT: 115 minutes.
    • AA1610: CLT 2027-05-17 08:25:00 → DEN 2027-05-17 10:10:00.

2027-05-13 → 2027-05-19 · Axel-exclusive $345.00

  • American Airlines AA2579 / AA3673: DEN 2027-05-13 13:15:00 → SDF 2027-05-13 21:15:00; 1 stop(s) via DFW; 360 minutes. Local airport times.
    • AA2579: DEN 2027-05-13 13:15:00 → DFW 2027-05-13 16:20:00; layover at DFW: 107 minutes.
    • AA3673: DFW 2027-05-13 18:07:00 → SDF 2027-05-13 21:15:00.
  • American Airlines AA647 / AA1610: SDF 2027-05-19 05:02:00 → DEN 2027-05-19 10:10:00; 1 stop(s) via CLT; 428 minutes. Local airport times.
    • AA647: SDF 2027-05-19 05:02:00 → CLT 2027-05-19 06:30:00; layover at CLT: 115 minutes.
    • AA1610: CLT 2027-05-19 08:25:00 → DEN 2027-05-19 10:10:00.

2027-05-13 → 2027-05-19 · Axel-exclusive $345.00

  • Southwest Airlines WN1150: DEN 2027-05-13 18:20:00 → SDF 2027-05-13 22:55:00; nonstop; 155 minutes. Local airport times.
  • Southwest Airlines WN3403: SDF 2027-05-19 06:50:00 → DEN 2027-05-19 08:00:00; nonstop; 190 minutes. Local airport times.

2027-05-13 → 2027-05-20 · Axel-exclusive $335.00

  • Southwest Airlines WN1150: DEN 2027-05-13 18:20:00 → SDF 2027-05-13 22:55:00; nonstop; 155 minutes. Local airport times.
  • Southwest Airlines WN282 / WN3718: SDF 2027-05-20 19:35:00 → DEN 2027-05-20 22:40:00; 1 stop(s) via MDW; 305 minutes. Local airport times.
    • WN282: SDF 2027-05-20 19:35:00 → MDW 2027-05-20 19:50:00; layover at MDW: 65 minutes.
    • WN3718: MDW 2027-05-20 20:55:00 → DEN 2027-05-20 22:40:00.

2027-05-13 → 2027-05-20 · Axel-exclusive $345.00

  • American Airlines AA2579 / AA3673: DEN 2027-05-13 13:15:00 → SDF 2027-05-13 21:15:00; 1 stop(s) via DFW; 360 minutes. Local airport times.
    • AA2579: DEN 2027-05-13 13:15:00 → DFW 2027-05-13 16:20:00; layover at DFW: 107 minutes.
    • AA3673: DFW 2027-05-13 18:07:00 → SDF 2027-05-13 21:15:00.
  • American Airlines AA647 / AA1610: SDF 2027-05-20 05:02:00 → DEN 2027-05-20 10:10:00; 1 stop(s) via CLT; 428 minutes. Local airport times.
    • AA647: SDF 2027-05-20 05:02:00 → CLT 2027-05-20 06:30:00; layover at CLT: 115 minutes.
    • AA1610: CLT 2027-05-20 08:25:00 → DEN 2027-05-20 10:10:00.

2027-05-13 → 2027-05-21 · Axel-exclusive $345.00

  • American Airlines AA2579 / AA3673: DEN 2027-05-13 13:15:00 → SDF 2027-05-13 21:15:00; 1 stop(s) via DFW; 360 minutes. Local airport times.
    • AA2579: DEN 2027-05-13 13:15:00 → DFW 2027-05-13 16:20:00; layover at DFW: 107 minutes.
    • AA3673: DFW 2027-05-13 18:07:00 → SDF 2027-05-13 21:15:00.
  • American Airlines AA647 / AA1610: SDF 2027-05-21 05:02:00 → DEN 2027-05-21 10:10:00; 1 stop(s) via CLT; 428 minutes. Local airport times.
    • AA647: SDF 2027-05-21 05:02:00 → CLT 2027-05-21 06:30:00; layover at CLT: 115 minutes.
    • AA1610: CLT 2027-05-21 08:25:00 → DEN 2027-05-21 10:10:00.

2027-05-13 → 2027-05-21 · Axel-exclusive $345.00

  • Southwest Airlines WN1150: DEN 2027-05-13 18:20:00 → SDF 2027-05-13 22:55:00; nonstop; 155 minutes. Local airport times.
  • Southwest Airlines WN3403: SDF 2027-05-21 06:50:00 → DEN 2027-05-21 08:00:00; nonstop; 190 minutes. Local airport times.

2027-05-13 → 2027-05-23 · Axel-exclusive $345.00

  • Southwest Airlines WN1150: DEN 2027-05-13 18:20:00 → SDF 2027-05-13 22:55:00; nonstop; 155 minutes. Local airport times.
  • Southwest Airlines WN3403: SDF 2027-05-23 06:50:00 → DEN 2027-05-23 08:00:00; nonstop; 190 minutes. Local airport times.

2027-05-13 → 2027-05-23 · Axel-exclusive $345.00

  • American Airlines AA2579 / AA3673: DEN 2027-05-13 13:15:00 → SDF 2027-05-13 21:15:00; 1 stop(s) via DFW; 360 minutes. Local airport times.
    • AA2579: DEN 2027-05-13 13:15:00 → DFW 2027-05-13 16:20:00; layover at DFW: 107 minutes.
    • AA3673: DFW 2027-05-13 18:07:00 → SDF 2027-05-13 21:15:00.
  • American Airlines AA647 / AA1610: SDF 2027-05-23 05:02:00 → DEN 2027-05-23 10:10:00; 1 stop(s) via CLT; 428 minutes. Local airport times.
    • AA647: SDF 2027-05-23 05:02:00 → CLT 2027-05-23 06:30:00; layover at CLT: 115 minutes.
    • AA1610: CLT 2027-05-23 08:25:00 → DEN 2027-05-23 10:10:00.

2027-05-13 → 2027-05-24 · Axel-exclusive $345.00

  • American Airlines AA2579 / AA3673: DEN 2027-05-13 13:15:00 → SDF 2027-05-13 21:15:00; 1 stop(s) via DFW; 360 minutes. Local airport times.
    • AA2579: DEN 2027-05-13 13:15:00 → DFW 2027-05-13 16:20:00; layover at DFW: 107 minutes.
    • AA3673: DFW 2027-05-13 18:07:00 → SDF 2027-05-13 21:15:00.
  • American Airlines AA647 / AA1610: SDF 2027-05-24 05:02:00 → DEN 2027-05-24 10:10:00; 1 stop(s) via CLT; 428 minutes. Local airport times.
    • AA647: SDF 2027-05-24 05:02:00 → CLT 2027-05-24 06:30:00; layover at CLT: 115 minutes.
    • AA1610: CLT 2027-05-24 08:25:00 → DEN 2027-05-24 10:10:00.

2027-05-13 → 2027-05-24 · Axel-exclusive $345.00

  • Southwest Airlines WN1150: DEN 2027-05-13 18:20:00 → SDF 2027-05-13 22:55:00; nonstop; 155 minutes. Local airport times.
  • Southwest Airlines WN3403: SDF 2027-05-24 06:50:00 → DEN 2027-05-24 08:00:00; nonstop; 190 minutes. Local airport times.

2027-05-13 → 2027-05-25 · Axel-exclusive $345.00

  • Southwest Airlines WN1150: DEN 2027-05-13 18:20:00 → SDF 2027-05-13 22:55:00; nonstop; 155 minutes. Local airport times.
  • Southwest Airlines WN3403: SDF 2027-05-25 06:50:00 → DEN 2027-05-25 08:00:00; nonstop; 190 minutes. Local airport times.

2027-05-13 → 2027-05-25 · Axel-exclusive $345.00

  • American Airlines AA2579 / AA3673: DEN 2027-05-13 13:15:00 → SDF 2027-05-13 21:15:00; 1 stop(s) via DFW; 360 minutes. Local airport times.
    • AA2579: DEN 2027-05-13 13:15:00 → DFW 2027-05-13 16:20:00; layover at DFW: 107 minutes.
    • AA3673: DFW 2027-05-13 18:07:00 → SDF 2027-05-13 21:15:00.
  • American Airlines AA647 / AA1610: SDF 2027-05-25 05:02:00 → DEN 2027-05-25 10:10:00; 1 stop(s) via CLT; 428 minutes. Local airport times.
    • AA647: SDF 2027-05-25 05:02:00 → CLT 2027-05-25 06:30:00; layover at CLT: 115 minutes.
    • AA1610: CLT 2027-05-25 08:25:00 → DEN 2027-05-25 10:10:00.

2027-05-13 → 2027-05-27 · Axel-exclusive $359.38

  • Southwest Airlines WN1150: DEN 2027-05-13 18:20:00 → SDF 2027-05-13 22:55:00; nonstop; 155 minutes. Local airport times.
  • Southwest Airlines WN282 / WN3718: SDF 2027-05-27 19:35:00 → DEN 2027-05-27 22:40:00; 1 stop(s) via MDW; 305 minutes. Local airport times.
    • WN282: SDF 2027-05-27 19:35:00 → MDW 2027-05-27 19:50:00; layover at MDW: 65 minutes.
    • WN3718: MDW 2027-05-27 20:55:00 → DEN 2027-05-27 22:40:00.

2027-05-13 → 2027-05-27 · Axel-exclusive $370.88

  • American Airlines AA2579 / AA3673: DEN 2027-05-13 13:15:00 → SDF 2027-05-13 21:15:00; 1 stop(s) via DFW; 360 minutes. Local airport times.
    • AA2579: DEN 2027-05-13 13:15:00 → DFW 2027-05-13 16:20:00; layover at DFW: 107 minutes.
    • AA3673: DFW 2027-05-13 18:07:00 → SDF 2027-05-13 21:15:00.
  • American Airlines AA647 / AA1610: SDF 2027-05-27 05:02:00 → DEN 2027-05-27 10:10:00; 1 stop(s) via CLT; 428 minutes. Local airport times.
    • AA647: SDF 2027-05-27 05:02:00 → CLT 2027-05-27 06:30:00; layover at CLT: 115 minutes.
    • AA1610: CLT 2027-05-27 08:25:00 → DEN 2027-05-27 10:10:00.

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For AI assistants

  • This page: Denver (DEN) to Louisville (SDF) · May 13, 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. 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.