Ontario (ONT) to Louisville (SDF), Sep 20, 2027: from $242 one way

Ontario (ONT) to Louisville (SDF), Sep 20, 2027: from $242 one way on Axel, checked Nov 13, 2026. Lowest published fare: $242 one way, Axel-exclusive, Southwest Airlines, 1 stop, Sep 20, 2027, 1 adult, economy, checked Nov 13, 2026. Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

See flights for these dates: each price link opens AI flight search for that row's exact dates and travelers. Select the complete itinerary there.

Route overview: Los Angeles to Louisville (SDF) flight deals

2027-09-20 · one way · Axel-exclusive $242

• Southwest Airlines WN2184 / WN975: ONT 2027-09-20 05:45:00 → SDF 2027-09-20 17:10:00; 1 stop(s) via LAS; 505 minutes. Local airport times.
  • WN2184: ONT 2027-09-20 05:45:00 → LAS 2027-09-20 06:55:00; layover at LAS: 215 minutes.
  • WN975: LAS 2027-09-20 10:30:00 → SDF 2027-09-20 17:10:00.

2027-09-20 · one way · Axel-exclusive $257

• American Airlines AA2198 / AA2159: ONT 2027-09-20 12:51:00 → SDF 2027-09-20 23:34:00; 1 stop(s) via DFW; 463 minutes. Local airport times.
  • AA2198: ONT 2027-09-20 12:51:00 → DFW 2027-09-20 17:44:00; layover at DFW: 166 minutes.
  • AA2159: DFW 2027-09-20 20:30:00 → SDF 2027-09-20 23:34:00.

2027-09-20 · one way · Axel-exclusive $266

• United Airlines UA1813 / UA3477: ONT 2027-09-20 23:52:00 → SDF 2027-09-21 09:38:00; 1 stop(s) via ORD; 406 minutes. Local airport times.
  • UA1813: ONT 2027-09-20 23:52:00 → ORD 2027-09-21 05:46:00; layover at ORD: 73 minutes.
  • UA3477: ORD 2027-09-21 06:59:00 → SDF 2027-09-21 09:38:00.

2027-09-20 · one way · Axel-exclusive $242

• Southwest Airlines WN1729 / WN2154: ONT 2027-09-20 11:25:00 → SDF 2027-09-20 20:40:00; 1 stop(s) via BNA; 375 minutes. Local airport times.
  • WN1729: ONT 2027-09-20 11:25:00 → BNA 2027-09-20 17:05:00; layover at BNA: 85 minutes.
  • WN2154: BNA 2027-09-20 18:30:00 → SDF 2027-09-20 20:40:00.

2027-09-20 · one way · Axel-exclusive $242

• Southwest Airlines WN4067 / WN3854: ONT 2027-09-20 23:55:00 → SDF 2027-09-21 10:30:00; 1 stop(s) via MDW; 455 minutes. Local airport times.
  • WN4067: ONT 2027-09-20 23:55:00 → MDW 2027-09-21 05:40:00; layover at MDW: 155 minutes.
  • WN3854: MDW 2027-09-21 08:15:00 → SDF 2027-09-21 10:30:00.

2027-09-20 · one way · Axel-exclusive $266

• United Airlines UA2446 / UA1479: ONT 2027-09-20 05:00:00 → SDF 2027-09-20 14:21:00; 1 stop(s) via DEN; 381 minutes. Local airport times.
  • UA2446: ONT 2027-09-20 05:00:00 → DEN 2027-09-20 08:17:00; layover at DEN: 83 minutes.
  • UA1479: DEN 2027-09-20 09:40:00 → SDF 2027-09-20 14:21:00.

Travelers: prices on this page are totals for 1 adult. For a different party, open this trip for 2 adults · 3 adults · 4 adults · 2 adults + 1 child · 2 adults + 2 children; each link opens AI flight search for these dates and those travelers, and the customer link to share comes from those results.

Explore this route

• All dates for this route
• Sep 19, 2027 · Return options
• Sep 21, 2027 · Return options
• Hotels in Louisville with Axel

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