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Route overview: Denver to Louisville (SDF) flight deals

Denver → Louisville

May 1, 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 1, 2027 · One waySouthwest AirlinesUp to 1 stop each way$288.75 May 1, 2027 · One wayAmerican AirlinesUp to 1 stop each way$305.25 May 1, 2027 – May 2, 2027 · 1 nightSouthwest AirlinesUp to 1 stop each way$552.76 May 1, 2027 – May 2, 2027 · 1 nightAmerican AirlinesUp to 1 stop each way$569.26 May 1, 2027 – May 3, 2027 · 2 nightsSouthwest AirlinesUp to 1 stop each way$552.76 May 1, 2027 – May 3, 2027 · 2 nightsAmerican AirlinesUp to 1 stop each way$569.26 May 1, 2027 – May 4, 2027 · 3 nightsSouthwest AirlinesUp to 1 stop each way$440.63 May 1, 2027 – May 4, 2027 · 3 nightsAmerican AirlinesUp to 1 stop each way$457.13 May 1, 2027 – May 5, 2027 · 4 nightsSouthwest AirlinesUp to 1 stop each way$440.63 May 1, 2027 – May 5, 2027 · 4 nightsAmerican AirlinesUp to 1 stop each way$457.13 May 1, 2027 – May 6, 2027 · 5 nightsSouthwest AirlinesUp to 1 stop each way$430.63 May 1, 2027 – May 6, 2027 · 5 nightsAmerican AirlinesUp to 1 stop each way$457.13 May 1, 2027 – May 7, 2027 · 6 nightsSouthwest AirlinesUp to 1 stop each way$440.63 May 1, 2027 – May 7, 2027 · 6 nightsAmerican AirlinesUp to 1 stop each way$457.13 May 1, 2027 – May 8, 2027 · 7 nightsSouthwest AirlinesUp to 1 stop each way$430.63 May 1, 2027 – May 8, 2027 · 7 nightsAmerican AirlinesUp to 1 stop each way$457.13 May 1, 2027 – May 9, 2027 · 8 nightsSouthwest AirlinesUp to 1 stop each way$440.63 May 1, 2027 – May 9, 2027 · 8 nightsAmerican AirlinesUp to 1 stop each way$457.13 May 1, 2027 – May 10, 2027 · 9 nightsSouthwest AirlinesUp to 1 stop each way$440.63 May 1, 2027 – May 10, 2027 · 9 nightsAmerican AirlinesUp to 1 stop each way$457.13 May 1, 2027 – May 11, 2027 · 10 nightsSouthwest AirlinesUp to 1 stop each way$440.63 May 1, 2027 – May 11, 2027 · 10 nightsAmerican AirlinesUp to 1 stop each way$457.13 May 1, 2027 – May 12, 2027 · 11 nightsSouthwest AirlinesUp to 1 stop each way$440.63 May 1, 2027 – May 12, 2027 · 11 nightsAmerican AirlinesUp to 1 stop each way$457.13 May 1, 2027 – May 13, 2027 · 12 nightsSouthwest AirlinesUp to 1 stop each way$430.63 May 1, 2027 – May 13, 2027 · 12 nightsAmerican AirlinesUp to 1 stop each way$457.13 May 1, 2027 – May 14, 2027 · 13 nightsSouthwest AirlinesUp to 1 stop each way$440.63 May 1, 2027 – May 14, 2027 · 13 nightsAmerican AirlinesUp to 1 stop each way$457.13 May 1, 2027 – May 15, 2027 · 14 nightsSouthwest AirlinesUp to 1 stop each way$430.63 May 1, 2027 – May 15, 2027 · 14 nightsAmerican AirlinesUp to 1 stop each way$457.13

Flights for your trip

  1. Sat, May 1 · One way

    Southwest Airlines
    9:05 amDEN
    5h 55m
    HOU · 1h 25m
    5:00 pmSDF

    One-way total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  2. Sat, May 1 · 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.

  3. Sat, May 1 – Sun, May 2

    Southwest Airlines
    9:05 amDEN
    5h 55m
    HOU · 1h 25m
    5:00 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.

  4. Sat, May 1 – Sun, May 2

    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.

  5. Sat, May 1 – Mon, May 3

    Southwest Airlines
    9:05 amDEN
    5h 55m
    HOU · 1h 25m
    5:00 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.

  6. Sat, May 1 – Mon, May 3

    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. Sat, May 1 – Tue, May 4

    Southwest Airlines
    9:05 amDEN
    5h 55m
    HOU · 1h 25m
    5:00 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. Sat, May 1 – Tue, May 4

    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. Sat, May 1 – Wed, May 5

    Southwest Airlines
    9:05 amDEN
    5h 55m
    HOU · 1h 25m
    5:00 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. Sat, May 1 – Wed, May 5

    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. Sat, May 1 – Fri, May 7

    Southwest Airlines
    9:05 amDEN
    5h 55m
    HOU · 1h 25m
    5:00 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.

  12. Sat, May 1 – Fri, May 7

    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.

  13. Sat, May 1 – Sat, May 8

    Southwest Airlines
    9:05 amDEN
    5h 55m
    HOU · 1h 25m
    5:00 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.

  14. Sat, May 1 – Sat, May 8

    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. Sat, May 1 – Sun, May 9

    Southwest Airlines
    9:05 amDEN
    5h 55m
    HOU · 1h 25m
    5:00 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.

  16. Sat, May 1 – Sun, May 9

    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.

  17. Sat, May 1 – Tue, May 11

    Southwest Airlines
    9:05 amDEN
    5h 55m
    HOU · 1h 25m
    5:00 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. Sat, May 1 – Tue, May 11

    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. Sat, May 1 – Wed, May 12

    Southwest Airlines
    9:05 amDEN
    5h 55m
    HOU · 1h 25m
    5:00 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.

  20. Sat, May 1 – Wed, May 12

    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.

  21. Sat, May 1 – Thu, May 13

    Southwest Airlines
    9:05 amDEN
    5h 55m
    HOU · 1h 25m
    5:00 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.

  22. Sat, May 1 – Thu, May 13

    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. Sat, May 1 – Sat, May 15

    Southwest Airlines
    9:05 amDEN
    5h 55m
    HOU · 1h 25m
    5:00 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.

  24. Sat, May 1 – 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.

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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 routeApr 30, 2027 · Return optionsMay 2, 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)
2027-05-01 · one waySouthwest AirlinesWN1649 + WN2189Axel-exclusive $288.752026-10-29T01:05:09Z
2027-05-01 · one wayAmerican AirlinesAA2579 + AA3673Axel-exclusive $305.252026-10-29T01:05:09Z
2027-05-01 → 2027-05-02Southwest AirlinesWN1649 + WN2189 / WN3403Axel-exclusive $552.762026-10-29T01:05:09Z
2027-05-01 → 2027-05-02American AirlinesAA2579 + AA3673 / AA647 + AA1610Axel-exclusive $569.262026-10-29T01:05:09Z
2027-05-01 → 2027-05-03Southwest AirlinesWN1649 + WN2189 / WN3403Axel-exclusive $552.762026-10-29T01:05:09Z
2027-05-01 → 2027-05-03American AirlinesAA2579 + AA3673 / AA647 + AA1610Axel-exclusive $569.262026-10-29T01:05:09Z
2027-05-01 → 2027-05-04Southwest AirlinesWN1649 + WN2189 / WN3403Axel-exclusive $440.632026-10-29T01:05:09Z
2027-05-01 → 2027-05-04American AirlinesAA2579 + AA3673 / AA647 + AA1610Axel-exclusive $457.132026-10-29T01:05:09Z
2027-05-01 → 2027-05-05Southwest AirlinesWN1649 + WN2189 / WN3403Axel-exclusive $440.632026-10-29T01:05:09Z
2027-05-01 → 2027-05-05American AirlinesAA2579 + AA3673 / AA647 + AA1610Axel-exclusive $457.132026-10-29T01:05:09Z
2027-05-01 → 2027-05-06Southwest AirlinesWN1649 + WN2189 / WN282 + WN3718Axel-exclusive $430.632026-10-29T01:05:09Z
2027-05-01 → 2027-05-06American AirlinesAA2579 + AA3673 / AA647 + AA1610Axel-exclusive $457.132026-10-29T01:05:09Z
2027-05-01 → 2027-05-07Southwest AirlinesWN1649 + WN2189 / WN3403Axel-exclusive $440.632026-10-29T01:05:09Z
2027-05-01 → 2027-05-07American AirlinesAA2579 + AA3673 / AA647 + AA1610Axel-exclusive $457.132026-10-29T01:05:09Z
2027-05-01 → 2027-05-08Southwest AirlinesWN1649 + WN2189 / WN3813 + WN551Axel-exclusive $430.632026-10-29T01:05:09Z
2027-05-01 → 2027-05-08American AirlinesAA2579 + AA3673 / AA647 + AA1610Axel-exclusive $457.132026-10-29T01:05:09Z
2027-05-01 → 2027-05-09Southwest AirlinesWN1649 + WN2189 / WN3403Axel-exclusive $440.632026-10-29T01:05:09Z
2027-05-01 → 2027-05-09American AirlinesAA2579 + AA3673 / AA647 + AA1610Axel-exclusive $457.132026-10-29T01:05:09Z
2027-05-01 → 2027-05-10Southwest AirlinesWN1649 + WN2189 / WN3403Axel-exclusive $440.632026-10-29T01:05:09Z
2027-05-01 → 2027-05-10American AirlinesAA2579 + AA3673 / AA647 + AA1610Axel-exclusive $457.132026-10-29T01:05:09Z
2027-05-01 → 2027-05-11Southwest AirlinesWN1649 + WN2189 / WN3403Axel-exclusive $440.632026-10-29T01:05:09Z
2027-05-01 → 2027-05-11American AirlinesAA2579 + AA3673 / AA647 + AA1610Axel-exclusive $457.132026-10-29T01:05:09Z
2027-05-01 → 2027-05-12Southwest AirlinesWN1649 + WN2189 / WN3403Axel-exclusive $440.632026-10-29T01:05:09Z
2027-05-01 → 2027-05-12American AirlinesAA2579 + AA3673 / AA647 + AA1610Axel-exclusive $457.132026-10-29T01:05:09Z
2027-05-01 → 2027-05-13Southwest AirlinesWN1649 + WN2189 / WN282 + WN3718Axel-exclusive $430.632026-10-29T01:05:09Z
2027-05-01 → 2027-05-13American AirlinesAA2579 + AA3673 / AA647 + AA1610Axel-exclusive $457.132026-10-29T01:05:09Z
2027-05-01 → 2027-05-14Southwest AirlinesWN1649 + WN2189 / WN3403Axel-exclusive $440.632026-10-29T01:05:09Z
2027-05-01 → 2027-05-14American AirlinesAA2579 + AA3673 / AA647 + AA1610Axel-exclusive $457.132026-10-29T01:05:09Z
2027-05-01 → 2027-05-15Southwest AirlinesWN1649 + WN2189 / WN3813 + WN551Axel-exclusive $430.632026-10-29T01:05:09Z
2027-05-01 → 2027-05-15American AirlinesAA2579 + AA3673 / AA647 + AA1610Axel-exclusive $457.132026-10-29T01:05:09Z

Route overview: Denver to Louisville (SDF) flight deals

2027-05-01 · one way · Axel-exclusive $288.75

  • Southwest Airlines WN1649 / WN2189: DEN 2027-05-01 09:05:00 → SDF 2027-05-01 17:00:00; 1 stop(s) via HOU; 355 minutes. Local airport times.
    • WN1649: DEN 2027-05-01 09:05:00 → HOU 2027-05-01 12:25:00; layover at HOU: 85 minutes.
    • WN2189: HOU 2027-05-01 13:50:00 → SDF 2027-05-01 17:00:00.

2027-05-01 · one way · Axel-exclusive $305.25

  • American Airlines AA2579 / AA3673: DEN 2027-05-01 13:15:00 → SDF 2027-05-01 21:15:00; 1 stop(s) via DFW; 360 minutes. Local airport times.
    • AA2579: DEN 2027-05-01 13:15:00 → DFW 2027-05-01 16:20:00; layover at DFW: 107 minutes.
    • AA3673: DFW 2027-05-01 18:07:00 → SDF 2027-05-01 21:15:00.

2027-05-01 → 2027-05-02 · Axel-exclusive $552.76

  • Southwest Airlines WN1649 / WN2189: DEN 2027-05-01 09:05:00 → SDF 2027-05-01 17:00:00; 1 stop(s) via HOU; 355 minutes. Local airport times.
    • WN1649: DEN 2027-05-01 09:05:00 → HOU 2027-05-01 12:25:00; layover at HOU: 85 minutes.
    • WN2189: HOU 2027-05-01 13:50:00 → SDF 2027-05-01 17:00:00.
  • Southwest Airlines WN3403: SDF 2027-05-02 06:50:00 → DEN 2027-05-02 08:00:00; nonstop; 190 minutes. Local airport times.

2027-05-01 → 2027-05-02 · Axel-exclusive $569.26

  • American Airlines AA2579 / AA3673: DEN 2027-05-01 13:15:00 → SDF 2027-05-01 21:15:00; 1 stop(s) via DFW; 360 minutes. Local airport times.
    • AA2579: DEN 2027-05-01 13:15:00 → DFW 2027-05-01 16:20:00; layover at DFW: 107 minutes.
    • AA3673: DFW 2027-05-01 18:07:00 → SDF 2027-05-01 21:15:00.
  • American Airlines AA647 / AA1610: SDF 2027-05-02 05:02:00 → DEN 2027-05-02 10:10:00; 1 stop(s) via CLT; 428 minutes. Local airport times.
    • AA647: SDF 2027-05-02 05:02:00 → CLT 2027-05-02 06:30:00; layover at CLT: 115 minutes.
    • AA1610: CLT 2027-05-02 08:25:00 → DEN 2027-05-02 10:10:00.

2027-05-01 → 2027-05-03 · Axel-exclusive $552.76

  • Southwest Airlines WN1649 / WN2189: DEN 2027-05-01 09:05:00 → SDF 2027-05-01 17:00:00; 1 stop(s) via HOU; 355 minutes. Local airport times.
    • WN1649: DEN 2027-05-01 09:05:00 → HOU 2027-05-01 12:25:00; layover at HOU: 85 minutes.
    • WN2189: HOU 2027-05-01 13:50:00 → SDF 2027-05-01 17:00:00.
  • Southwest Airlines WN3403: SDF 2027-05-03 06:50:00 → DEN 2027-05-03 08:00:00; nonstop; 190 minutes. Local airport times.

2027-05-01 → 2027-05-03 · Axel-exclusive $569.26

  • American Airlines AA2579 / AA3673: DEN 2027-05-01 13:15:00 → SDF 2027-05-01 21:15:00; 1 stop(s) via DFW; 360 minutes. Local airport times.
    • AA2579: DEN 2027-05-01 13:15:00 → DFW 2027-05-01 16:20:00; layover at DFW: 107 minutes.
    • AA3673: DFW 2027-05-01 18:07:00 → SDF 2027-05-01 21:15:00.
  • American Airlines AA647 / AA1610: SDF 2027-05-03 05:02:00 → DEN 2027-05-03 10:10:00; 1 stop(s) via CLT; 428 minutes. Local airport times.
    • AA647: SDF 2027-05-03 05:02:00 → CLT 2027-05-03 06:30:00; layover at CLT: 115 minutes.
    • AA1610: CLT 2027-05-03 08:25:00 → DEN 2027-05-03 10:10:00.

2027-05-01 → 2027-05-04 · Axel-exclusive $440.63

  • Southwest Airlines WN1649 / WN2189: DEN 2027-05-01 09:05:00 → SDF 2027-05-01 17:00:00; 1 stop(s) via HOU; 355 minutes. Local airport times.
    • WN1649: DEN 2027-05-01 09:05:00 → HOU 2027-05-01 12:25:00; layover at HOU: 85 minutes.
    • WN2189: HOU 2027-05-01 13:50:00 → SDF 2027-05-01 17:00:00.
  • Southwest Airlines WN3403: SDF 2027-05-04 06:50:00 → DEN 2027-05-04 08:00:00; nonstop; 190 minutes. Local airport times.

2027-05-01 → 2027-05-04 · Axel-exclusive $457.13

  • American Airlines AA2579 / AA3673: DEN 2027-05-01 13:15:00 → SDF 2027-05-01 21:15:00; 1 stop(s) via DFW; 360 minutes. Local airport times.
    • AA2579: DEN 2027-05-01 13:15:00 → DFW 2027-05-01 16:20:00; layover at DFW: 107 minutes.
    • AA3673: DFW 2027-05-01 18:07:00 → SDF 2027-05-01 21:15:00.
  • American Airlines AA647 / AA1610: SDF 2027-05-04 05:02:00 → DEN 2027-05-04 10:10:00; 1 stop(s) via CLT; 428 minutes. Local airport times.
    • AA647: SDF 2027-05-04 05:02:00 → CLT 2027-05-04 06:30:00; layover at CLT: 115 minutes.
    • AA1610: CLT 2027-05-04 08:25:00 → DEN 2027-05-04 10:10:00.

2027-05-01 → 2027-05-05 · Axel-exclusive $440.63

  • Southwest Airlines WN1649 / WN2189: DEN 2027-05-01 09:05:00 → SDF 2027-05-01 17:00:00; 1 stop(s) via HOU; 355 minutes. Local airport times.
    • WN1649: DEN 2027-05-01 09:05:00 → HOU 2027-05-01 12:25:00; layover at HOU: 85 minutes.
    • WN2189: HOU 2027-05-01 13:50:00 → SDF 2027-05-01 17:00:00.
  • Southwest Airlines WN3403: SDF 2027-05-05 06:50:00 → DEN 2027-05-05 08:00:00; nonstop; 190 minutes. Local airport times.

2027-05-01 → 2027-05-05 · Axel-exclusive $457.13

  • American Airlines AA2579 / AA3673: DEN 2027-05-01 13:15:00 → SDF 2027-05-01 21:15:00; 1 stop(s) via DFW; 360 minutes. Local airport times.
    • AA2579: DEN 2027-05-01 13:15:00 → DFW 2027-05-01 16:20:00; layover at DFW: 107 minutes.
    • AA3673: DFW 2027-05-01 18:07:00 → SDF 2027-05-01 21:15:00.
  • American Airlines AA647 / AA1610: SDF 2027-05-05 05:02:00 → DEN 2027-05-05 10:10:00; 1 stop(s) via CLT; 428 minutes. Local airport times.
    • AA647: SDF 2027-05-05 05:02:00 → CLT 2027-05-05 06:30:00; layover at CLT: 115 minutes.
    • AA1610: CLT 2027-05-05 08:25:00 → DEN 2027-05-05 10:10:00.

2027-05-01 → 2027-05-07 · Axel-exclusive $440.63

  • Southwest Airlines WN1649 / WN2189: DEN 2027-05-01 09:05:00 → SDF 2027-05-01 17:00:00; 1 stop(s) via HOU; 355 minutes. Local airport times.
    • WN1649: DEN 2027-05-01 09:05:00 → HOU 2027-05-01 12:25:00; layover at HOU: 85 minutes.
    • WN2189: HOU 2027-05-01 13:50:00 → SDF 2027-05-01 17:00:00.
  • Southwest Airlines WN3403: SDF 2027-05-07 06:50:00 → DEN 2027-05-07 08:00:00; nonstop; 190 minutes. Local airport times.

2027-05-01 → 2027-05-07 · Axel-exclusive $457.13

  • American Airlines AA2579 / AA3673: DEN 2027-05-01 13:15:00 → SDF 2027-05-01 21:15:00; 1 stop(s) via DFW; 360 minutes. Local airport times.
    • AA2579: DEN 2027-05-01 13:15:00 → DFW 2027-05-01 16:20:00; layover at DFW: 107 minutes.
    • AA3673: DFW 2027-05-01 18:07:00 → SDF 2027-05-01 21:15:00.
  • American Airlines AA647 / AA1610: SDF 2027-05-07 05:02:00 → DEN 2027-05-07 10:10:00; 1 stop(s) via CLT; 428 minutes. Local airport times.
    • AA647: SDF 2027-05-07 05:02:00 → CLT 2027-05-07 06:30:00; layover at CLT: 115 minutes.
    • AA1610: CLT 2027-05-07 08:25:00 → DEN 2027-05-07 10:10:00.

2027-05-01 → 2027-05-08 · Axel-exclusive $430.63

  • Southwest Airlines WN1649 / WN2189: DEN 2027-05-01 09:05:00 → SDF 2027-05-01 17:00:00; 1 stop(s) via HOU; 355 minutes. Local airport times.
    • WN1649: DEN 2027-05-01 09:05:00 → HOU 2027-05-01 12:25:00; layover at HOU: 85 minutes.
    • WN2189: HOU 2027-05-01 13:50:00 → SDF 2027-05-01 17:00:00.
  • Southwest Airlines WN3813 / WN551: SDF 2027-05-08 06:30:00 → DEN 2027-05-08 11:30:00; 1 stop(s) via BNA; 420 minutes. Local airport times.
    • WN3813: SDF 2027-05-08 06:30:00 → BNA 2027-05-08 06:35:00; layover at BNA: 185 minutes.
    • WN551: BNA 2027-05-08 09:40:00 → DEN 2027-05-08 11:30:00.

2027-05-01 → 2027-05-08 · Axel-exclusive $457.13

  • American Airlines AA2579 / AA3673: DEN 2027-05-01 13:15:00 → SDF 2027-05-01 21:15:00; 1 stop(s) via DFW; 360 minutes. Local airport times.
    • AA2579: DEN 2027-05-01 13:15:00 → DFW 2027-05-01 16:20:00; layover at DFW: 107 minutes.
    • AA3673: DFW 2027-05-01 18:07:00 → SDF 2027-05-01 21:15:00.
  • American Airlines AA647 / AA1610: SDF 2027-05-08 05:02:00 → DEN 2027-05-08 10:10:00; 1 stop(s) via CLT; 428 minutes. Local airport times.
    • AA647: SDF 2027-05-08 05:02:00 → CLT 2027-05-08 06:30:00; layover at CLT: 115 minutes.
    • AA1610: CLT 2027-05-08 08:25:00 → DEN 2027-05-08 10:10:00.

2027-05-01 → 2027-05-09 · Axel-exclusive $440.63

  • Southwest Airlines WN1649 / WN2189: DEN 2027-05-01 09:05:00 → SDF 2027-05-01 17:00:00; 1 stop(s) via HOU; 355 minutes. Local airport times.
    • WN1649: DEN 2027-05-01 09:05:00 → HOU 2027-05-01 12:25:00; layover at HOU: 85 minutes.
    • WN2189: HOU 2027-05-01 13:50:00 → SDF 2027-05-01 17:00:00.
  • Southwest Airlines WN3403: SDF 2027-05-09 06:50:00 → DEN 2027-05-09 08:00:00; nonstop; 190 minutes. Local airport times.

2027-05-01 → 2027-05-09 · Axel-exclusive $457.13

  • American Airlines AA2579 / AA3673: DEN 2027-05-01 13:15:00 → SDF 2027-05-01 21:15:00; 1 stop(s) via DFW; 360 minutes. Local airport times.
    • AA2579: DEN 2027-05-01 13:15:00 → DFW 2027-05-01 16:20:00; layover at DFW: 107 minutes.
    • AA3673: DFW 2027-05-01 18:07:00 → SDF 2027-05-01 21:15:00.
  • American Airlines AA647 / AA1610: SDF 2027-05-09 05:02:00 → DEN 2027-05-09 10:10:00; 1 stop(s) via CLT; 428 minutes. Local airport times.
    • AA647: SDF 2027-05-09 05:02:00 → CLT 2027-05-09 06:30:00; layover at CLT: 115 minutes.
    • AA1610: CLT 2027-05-09 08:25:00 → DEN 2027-05-09 10:10:00.

2027-05-01 → 2027-05-11 · Axel-exclusive $440.63

  • Southwest Airlines WN1649 / WN2189: DEN 2027-05-01 09:05:00 → SDF 2027-05-01 17:00:00; 1 stop(s) via HOU; 355 minutes. Local airport times.
    • WN1649: DEN 2027-05-01 09:05:00 → HOU 2027-05-01 12:25:00; layover at HOU: 85 minutes.
    • WN2189: HOU 2027-05-01 13:50:00 → SDF 2027-05-01 17:00:00.
  • Southwest Airlines WN3403: SDF 2027-05-11 06:50:00 → DEN 2027-05-11 08:00:00; nonstop; 190 minutes. Local airport times.

2027-05-01 → 2027-05-11 · Axel-exclusive $457.13

  • American Airlines AA2579 / AA3673: DEN 2027-05-01 13:15:00 → SDF 2027-05-01 21:15:00; 1 stop(s) via DFW; 360 minutes. Local airport times.
    • AA2579: DEN 2027-05-01 13:15:00 → DFW 2027-05-01 16:20:00; layover at DFW: 107 minutes.
    • AA3673: DFW 2027-05-01 18:07:00 → SDF 2027-05-01 21:15:00.
  • American Airlines AA647 / AA1610: SDF 2027-05-11 05:02:00 → DEN 2027-05-11 10:10:00; 1 stop(s) via CLT; 428 minutes. Local airport times.
    • AA647: SDF 2027-05-11 05:02:00 → CLT 2027-05-11 06:30:00; layover at CLT: 115 minutes.
    • AA1610: CLT 2027-05-11 08:25:00 → DEN 2027-05-11 10:10:00.

2027-05-01 → 2027-05-12 · Axel-exclusive $440.63

  • Southwest Airlines WN1649 / WN2189: DEN 2027-05-01 09:05:00 → SDF 2027-05-01 17:00:00; 1 stop(s) via HOU; 355 minutes. Local airport times.
    • WN1649: DEN 2027-05-01 09:05:00 → HOU 2027-05-01 12:25:00; layover at HOU: 85 minutes.
    • WN2189: HOU 2027-05-01 13:50:00 → SDF 2027-05-01 17:00:00.
  • Southwest Airlines WN3403: SDF 2027-05-12 06:50:00 → DEN 2027-05-12 08:00:00; nonstop; 190 minutes. Local airport times.

2027-05-01 → 2027-05-12 · Axel-exclusive $457.13

  • American Airlines AA2579 / AA3673: DEN 2027-05-01 13:15:00 → SDF 2027-05-01 21:15:00; 1 stop(s) via DFW; 360 minutes. Local airport times.
    • AA2579: DEN 2027-05-01 13:15:00 → DFW 2027-05-01 16:20:00; layover at DFW: 107 minutes.
    • AA3673: DFW 2027-05-01 18:07:00 → SDF 2027-05-01 21:15:00.
  • American Airlines AA647 / AA1610: SDF 2027-05-12 05:02:00 → DEN 2027-05-12 10:10:00; 1 stop(s) via CLT; 428 minutes. Local airport times.
    • AA647: SDF 2027-05-12 05:02:00 → CLT 2027-05-12 06:30:00; layover at CLT: 115 minutes.
    • AA1610: CLT 2027-05-12 08:25:00 → DEN 2027-05-12 10:10:00.

2027-05-01 → 2027-05-13 · Axel-exclusive $430.63

  • Southwest Airlines WN1649 / WN2189: DEN 2027-05-01 09:05:00 → SDF 2027-05-01 17:00:00; 1 stop(s) via HOU; 355 minutes. Local airport times.
    • WN1649: DEN 2027-05-01 09:05:00 → HOU 2027-05-01 12:25:00; layover at HOU: 85 minutes.
    • WN2189: HOU 2027-05-01 13:50:00 → SDF 2027-05-01 17:00:00.
  • Southwest Airlines WN282 / WN3718: SDF 2027-05-13 19:35:00 → DEN 2027-05-13 22:40:00; 1 stop(s) via MDW; 305 minutes. Local airport times.
    • WN282: SDF 2027-05-13 19:35:00 → MDW 2027-05-13 19:50:00; layover at MDW: 65 minutes.
    • WN3718: MDW 2027-05-13 20:55:00 → DEN 2027-05-13 22:40:00.

2027-05-01 → 2027-05-13 · Axel-exclusive $457.13

  • American Airlines AA2579 / AA3673: DEN 2027-05-01 13:15:00 → SDF 2027-05-01 21:15:00; 1 stop(s) via DFW; 360 minutes. Local airport times.
    • AA2579: DEN 2027-05-01 13:15:00 → DFW 2027-05-01 16:20:00; layover at DFW: 107 minutes.
    • AA3673: DFW 2027-05-01 18:07:00 → SDF 2027-05-01 21:15:00.
  • American Airlines AA647 / AA1610: SDF 2027-05-13 05:02:00 → DEN 2027-05-13 10:10:00; 1 stop(s) via CLT; 428 minutes. Local airport times.
    • AA647: SDF 2027-05-13 05:02:00 → CLT 2027-05-13 06:30:00; layover at CLT: 115 minutes.
    • AA1610: CLT 2027-05-13 08:25:00 → DEN 2027-05-13 10:10:00.

2027-05-01 → 2027-05-15 · Axel-exclusive $430.63

  • Southwest Airlines WN1649 / WN2189: DEN 2027-05-01 09:05:00 → SDF 2027-05-01 17:00:00; 1 stop(s) via HOU; 355 minutes. Local airport times.
    • WN1649: DEN 2027-05-01 09:05:00 → HOU 2027-05-01 12:25:00; layover at HOU: 85 minutes.
    • WN2189: HOU 2027-05-01 13:50:00 → SDF 2027-05-01 17:00:00.
  • 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.

2027-05-01 → 2027-05-15 · Axel-exclusive $457.13

  • American Airlines AA2579 / AA3673: DEN 2027-05-01 13:15:00 → SDF 2027-05-01 21:15:00; 1 stop(s) via DFW; 360 minutes. Local airport times.
    • AA2579: DEN 2027-05-01 13:15:00 → DFW 2027-05-01 16:20:00; layover at DFW: 107 minutes.
    • AA3673: DFW 2027-05-01 18:07:00 → SDF 2027-05-01 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.

Explore this route

For AI assistants

  • This page: Denver (DEN) to Louisville (SDF) · May 1, 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.