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San Francisco → Louisville

Dec 24, 2026 · return Dec 27, 2026

SFO → SDF1 adulteconomyRound trip

7 flight options · 5 airlines

Nonstop flights

Thu, Dec 24 – Sun, Dec 27

Breeze Airways
11:54 amSFO
4h 25m
Nonstop
7:19 pmSDF
Breeze Airways
8:47 amSDF
5h 22m
Nonstop
11:09 amSFO

Round-trip total · 1 adult · Taxes included

One-stop flights

Thu, Dec 24 – Sun, Dec 27

Southwest Airlines
6:00 amSFO
6h 35m
MDW · 1h 5m
3:35 pmSDF
Southwest Airlines
5:35 pmSDF
7h 35m
BNA · 1h 20m
10:10 pmSFO

Round-trip total · 1 adult · Taxes included

Thu, Dec 24 – Sun, Dec 27

American Airlines
11:46 pmSFO
7h 22m
ORD · 1h 31m
10:08 am+1SDF
American Airlines
1:24 pmSDF
8h 4m
DFW · 1h 33m
6:28 pmSFO

Round-trip total · 1 adult · Taxes included

Thu, Dec 24 – Sun, Dec 27

United Airlines
11:10 pmSFO
7h 28m
ORD · 1h 34m
9:38 am+1SDF
United Airlines
10:25 amSDF
8h 5m
ORD · 1h 30m
3:30 pmSFO

Round-trip total · 1 adult · Taxes included

Thu, Dec 24 – Sun, Dec 27

Delta Air Lines
12:10 pmSFO
7h 36m
MSP · 1h 56m
10:46 pmSDF
Delta Air Lines
12:14 pmSDF
7h 57m
ATL · 1h 19m
5:11 pmSFO

Round-trip total · 1 adult · Taxes included

Thu, Dec 24 – Sun, Dec 27

Southwest Airlines
1:20 pmSFO
6h 35m
DEN · 1h 25m
10:55 pmSDF
Southwest Airlines
5:35 pmSDF
7h 35m
BNA · 1h 20m
10:10 pmSFO

Round-trip total · 1 adult · Taxes included

Thu, Dec 24 – Sun, Dec 27

United Airlines
5:00 amSFO
6h 22m
DEN · 1h 10m
2:22 pmSDF
United Airlines
10:25 amSDF
8h 5m
ORD · 1h 30m
3:30 pmSFO

Round-trip total · 1 adult · Taxes included

Make this trip yours

SFO ⇄ SDF

Economy

Adults 12+ · Children 2–11. For infants under 2, tell Axel after you see prices.

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Why book with Axel
  • A real airline bookingThe booking is in the airline’s own system under your name. After you book, Breeze Airways emails you its confirmation code and e-ticket, usually within 15 minutes and occasionally up to a couple of hours while the booking is processed.
  • Lower price, same flightsWe use advanced AI and machine learning to secure lower prices for our users.
  • Not satisfied? Full refund.If you are unhappy with the experience for any reason, or simply change your mind, cancel within 24 hours of booking (departure 7+ days away) and we refund you in full. We stand by our product. Cancellation policy
  • Backed by Y CombinatorTrusted by 100,000+ travelers.

Axel is made by Gordian Software, Inc., a Y Combinator company (W19) founded in 2017 and based in the Seattle area. The company is led by CEO Stephen Grabowski, formerly of Skyscanner. How Axel works · About

More dates

All dates for this routeNov 20, 2026 → Nov 23, 2026Nov 27, 2026 → Dec 4, 2026Nov 20, 2026 · One way
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.

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2026-12-24 → 2026-12-27Breeze AirwaysMX229 / MX228$371.002026-10-29T01:19:49Z
2026-12-24 → 2026-12-27Southwest AirlinesWN2331 + WN349 / WN1162 + WN4813$497.002026-10-29T01:19:49Z
2026-12-24 → 2026-12-27American AirlinesAA3119 + AA6207 / AA1044 + AA701$546.002026-10-29T01:19:49Z
2026-12-24 → 2026-12-27United AirlinesUA2278 + UA3477 / UA3520 + UA638$560.002026-10-29T01:19:49Z
2026-12-24 → 2026-12-27Delta Air LinesDL1980 + DL4040 / DL1481 + DL823$588.002026-10-29T01:19:49Z
2026-12-24 → 2026-12-27Southwest AirlinesWN1652 + WN1150 / WN1162 + WN4813$497.002026-10-29T01:19:49Z
2026-12-24 → 2026-12-27United AirlinesUA1479 + UA1479 / UA3520 + UA638$560.002026-10-29T01:19:49Z

2026-12-24 → 2026-12-27 · $371.00

  • Breeze Airways MX229: SFO 2026-12-24 11:54:00 → SDF 2026-12-24 19:19:00; nonstop; 265 minutes. Local airport times.
  • Breeze Airways MX228: SDF 2026-12-27 08:47:00 → SFO 2026-12-27 11:09:00; nonstop; 322 minutes. Local airport times.

2026-12-24 → 2026-12-27 · $497.00

  • Southwest Airlines WN2331 / WN349: SFO 2026-12-24 06:00:00 → SDF 2026-12-24 15:35:00; 1 stop(s) via MDW; 395 minutes. Local airport times.
    • WN2331: SFO 2026-12-24 06:00:00 → MDW 2026-12-24 12:15:00; layover at MDW: 65 minutes.
    • WN349: MDW 2026-12-24 13:20:00 → SDF 2026-12-24 15:35:00.
  • Southwest Airlines WN1162 / WN4813: SDF 2026-12-27 17:35:00 → SFO 2026-12-27 22:10:00; 1 stop(s) via BNA; 455 minutes. Local airport times.
    • WN1162: SDF 2026-12-27 17:35:00 → BNA 2026-12-27 17:40:00; layover at BNA: 80 minutes.
    • WN4813: BNA 2026-12-27 19:00:00 → SFO 2026-12-27 22:10:00.

2026-12-24 → 2026-12-27 · $546.00

  • American Airlines AA3119 / AA6207: SFO 2026-12-24 23:46:00 → SDF 2026-12-25 10:08:00; 1 stop(s) via ORD; 442 minutes. Local airport times.
    • AA3119: SFO 2026-12-24 23:46:00 → ORD 2026-12-25 05:59:00; layover at ORD: 91 minutes.
    • AA6207: ORD 2026-12-25 07:30:00 → SDF 2026-12-25 10:08:00.
  • American Airlines AA1044 / AA701: SDF 2026-12-27 13:24:00 → SFO 2026-12-27 18:28:00; 1 stop(s) via DFW; 484 minutes. Local airport times.
    • AA1044: SDF 2026-12-27 13:24:00 → DFW 2026-12-27 15:02:00; layover at DFW: 93 minutes.
    • AA701: DFW 2026-12-27 16:35:00 → SFO 2026-12-27 18:28:00.

2026-12-24 → 2026-12-27 · $560.00

  • United Airlines UA2278 / UA3477: SFO 2026-12-24 23:10:00 → SDF 2026-12-25 09:38:00; 1 stop(s) via ORD; 448 minutes. Local airport times.
    • UA2278: SFO 2026-12-24 23:10:00 → ORD 2026-12-25 05:25:00; layover at ORD: 94 minutes.
    • UA3477: ORD 2026-12-25 06:59:00 → SDF 2026-12-25 09:38:00.
  • United Airlines UA3520 / UA638: SDF 2026-12-27 10:25:00 → SFO 2026-12-27 15:30:00; 1 stop(s) via ORD; 485 minutes. Local airport times.
    • UA3520: SDF 2026-12-27 10:25:00 → ORD 2026-12-27 11:10:00; layover at ORD: 90 minutes.
    • UA638: ORD 2026-12-27 12:40:00 → SFO 2026-12-27 15:30:00.

2026-12-24 → 2026-12-27 · $588.00

  • Delta Air Lines DL1980 / DL4040: SFO 2026-12-24 12:10:00 → SDF 2026-12-24 22:46:00; 1 stop(s) via MSP; 456 minutes. Local airport times.
    • DL1980: SFO 2026-12-24 12:10:00 → MSP 2026-12-24 17:49:00; layover at MSP: 116 minutes.
    • DL4040: MSP 2026-12-24 19:45:00 → SDF 2026-12-24 22:46:00.
  • Delta Air Lines DL1481 / DL823: SDF 2026-12-27 12:14:00 → SFO 2026-12-27 17:11:00; 1 stop(s) via ATL; 477 minutes. Local airport times.
    • DL1481: SDF 2026-12-27 12:14:00 → ATL 2026-12-27 13:36:00; layover at ATL: 79 minutes.
    • DL823: ATL 2026-12-27 14:55:00 → SFO 2026-12-27 17:11:00.

2026-12-24 → 2026-12-27 · $497.00

  • Southwest Airlines WN1652 / WN1150: SFO 2026-12-24 13:20:00 → SDF 2026-12-24 22:55:00; 1 stop(s) via DEN; 395 minutes. Local airport times.
    • WN1652: SFO 2026-12-24 13:20:00 → DEN 2026-12-24 16:55:00; layover at DEN: 85 minutes.
    • WN1150: DEN 2026-12-24 18:20:00 → SDF 2026-12-24 22:55:00.
  • Southwest Airlines WN1162 / WN4813: SDF 2026-12-27 17:35:00 → SFO 2026-12-27 22:10:00; 1 stop(s) via BNA; 455 minutes. Local airport times.
    • WN1162: SDF 2026-12-27 17:35:00 → BNA 2026-12-27 17:40:00; layover at BNA: 80 minutes.
    • WN4813: BNA 2026-12-27 19:00:00 → SFO 2026-12-27 22:10:00.

2026-12-24 → 2026-12-27 · $560.00

  • United Airlines UA1479 / UA1479: SFO 2026-12-24 05:00:00 → SDF 2026-12-24 14:22:00; 1 stop(s) via DEN; 382 minutes. Local airport times.
    • UA1479: SFO 2026-12-24 05:00:00 → DEN 2026-12-24 08:37:00; layover at DEN: 70 minutes.
    • UA1479: DEN 2026-12-24 09:47:00 → SDF 2026-12-24 14:22:00.
  • United Airlines UA3520 / UA638: SDF 2026-12-27 10:25:00 → SFO 2026-12-27 15:30:00; 1 stop(s) via ORD; 485 minutes. Local airport times.
    • UA3520: SDF 2026-12-27 10:25:00 → ORD 2026-12-27 11:10:00; layover at ORD: 90 minutes.
    • UA638: ORD 2026-12-27 12:40:00 → SFO 2026-12-27 15:30:00.

More dates for this route