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Route overview: San Francisco Bay Area to Louisville (SDF) flight deals

San Francisco → Louisville

Dec 17, 2026 · return Dec 21, 2026

SFO → SDF1 adulteconomyRound trip

7 flight options · 5 airlines

Nonstop flights

Thu, Dec 17 – Mon, Dec 21

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 17 – Mon, Dec 21

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 17 – Mon, Dec 21

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 17 – Mon, Dec 21

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

Thu, Dec 17 – Mon, Dec 21

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 17 – Mon, Dec 21

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 17 – Mon, Dec 21

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

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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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

Explore this route

All dates for this routeDec 16, 2026 → Dec 20, 2026Dec 18, 2026 → Dec 22, 2026
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.

Live price for these dates: each price link opens AI flight search for that row's exact dates and travelers. Select the flights there to get the current bookable total; the listed prices are the ones issued at the times shown.

Route overview: San Francisco Bay Area to Louisville (SDF) flight deals

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2026-12-17 → 2026-12-21Breeze AirwaysMX229 / MX228$318.002026-10-29T01:19:49Z
2026-12-17 → 2026-12-21Southwest AirlinesWN2331 + WN349 / WN1162 + WN4813$426.002026-10-29T01:19:49Z
2026-12-17 → 2026-12-21American AirlinesAA3119 + AA6207 / AA1044 + AA701$468.002026-10-29T01:19:49Z
2026-12-17 → 2026-12-21United AirlinesUA1479 + UA1479 / UA3520 + UA638$480.002026-10-29T01:19:49Z
2026-12-17 → 2026-12-21Delta Air LinesDL1980 + DL4040 / DL1481 + DL823$504.002026-10-29T01:19:49Z
2026-12-17 → 2026-12-21Southwest AirlinesWN1652 + WN1150 / WN1162 + WN4813$426.002026-10-29T01:19:49Z
2026-12-17 → 2026-12-21United AirlinesUA2278 + UA3477 / UA3520 + UA638$480.002026-10-29T01:19:49Z

2026-12-17 → 2026-12-21 · $318.00

  • Breeze Airways MX229: SFO 2026-12-17 11:54:00 → SDF 2026-12-17 19:19:00; nonstop; 265 minutes. Local airport times.
  • Breeze Airways MX228: SDF 2026-12-21 08:47:00 → SFO 2026-12-21 11:09:00; nonstop; 322 minutes. Local airport times.

2026-12-17 → 2026-12-21 · $426.00

  • Southwest Airlines WN2331 / WN349: SFO 2026-12-17 06:00:00 → SDF 2026-12-17 15:35:00; 1 stop(s) via MDW; 395 minutes. Local airport times.
    • WN2331: SFO 2026-12-17 06:00:00 → MDW 2026-12-17 12:15:00; layover at MDW: 65 minutes.
    • WN349: MDW 2026-12-17 13:20:00 → SDF 2026-12-17 15:35:00.
  • Southwest Airlines WN1162 / WN4813: SDF 2026-12-21 17:35:00 → SFO 2026-12-21 22:10:00; 1 stop(s) via BNA; 455 minutes. Local airport times.
    • WN1162: SDF 2026-12-21 17:35:00 → BNA 2026-12-21 17:40:00; layover at BNA: 80 minutes.
    • WN4813: BNA 2026-12-21 19:00:00 → SFO 2026-12-21 22:10:00.

2026-12-17 → 2026-12-21 · $468.00

  • American Airlines AA3119 / AA6207: SFO 2026-12-17 23:46:00 → SDF 2026-12-18 10:08:00; 1 stop(s) via ORD; 442 minutes. Local airport times.
    • AA3119: SFO 2026-12-17 23:46:00 → ORD 2026-12-18 05:59:00; layover at ORD: 91 minutes.
    • AA6207: ORD 2026-12-18 07:30:00 → SDF 2026-12-18 10:08:00.
  • American Airlines AA1044 / AA701: SDF 2026-12-21 13:24:00 → SFO 2026-12-21 18:28:00; 1 stop(s) via DFW; 484 minutes. Local airport times.
    • AA1044: SDF 2026-12-21 13:24:00 → DFW 2026-12-21 15:02:00; layover at DFW: 93 minutes.
    • AA701: DFW 2026-12-21 16:35:00 → SFO 2026-12-21 18:28:00.

2026-12-17 → 2026-12-21 · $480.00

  • United Airlines UA1479 / UA1479: SFO 2026-12-17 05:00:00 → SDF 2026-12-17 14:22:00; 1 stop(s) via DEN; 382 minutes. Local airport times.
    • UA1479: SFO 2026-12-17 05:00:00 → DEN 2026-12-17 08:37:00; layover at DEN: 70 minutes.
    • UA1479: DEN 2026-12-17 09:47:00 → SDF 2026-12-17 14:22:00.
  • United Airlines UA3520 / UA638: SDF 2026-12-21 10:25:00 → SFO 2026-12-21 15:30:00; 1 stop(s) via ORD; 485 minutes. Local airport times.
    • UA3520: SDF 2026-12-21 10:25:00 → ORD 2026-12-21 11:10:00; layover at ORD: 90 minutes.
    • UA638: ORD 2026-12-21 12:40:00 → SFO 2026-12-21 15:30:00.

2026-12-17 → 2026-12-21 · $504.00

  • Delta Air Lines DL1980 / DL4040: SFO 2026-12-17 12:10:00 → SDF 2026-12-17 22:46:00; 1 stop(s) via MSP; 456 minutes. Local airport times.
    • DL1980: SFO 2026-12-17 12:10:00 → MSP 2026-12-17 17:49:00; layover at MSP: 116 minutes.
    • DL4040: MSP 2026-12-17 19:45:00 → SDF 2026-12-17 22:46:00.
  • Delta Air Lines DL1481 / DL823: SDF 2026-12-21 12:14:00 → SFO 2026-12-21 17:11:00; 1 stop(s) via ATL; 477 minutes. Local airport times.
    • DL1481: SDF 2026-12-21 12:14:00 → ATL 2026-12-21 13:36:00; layover at ATL: 79 minutes.
    • DL823: ATL 2026-12-21 14:55:00 → SFO 2026-12-21 17:11:00.

2026-12-17 → 2026-12-21 · $426.00

  • Southwest Airlines WN1652 / WN1150: SFO 2026-12-17 13:20:00 → SDF 2026-12-17 22:55:00; 1 stop(s) via DEN; 395 minutes. Local airport times.
    • WN1652: SFO 2026-12-17 13:20:00 → DEN 2026-12-17 16:55:00; layover at DEN: 85 minutes.
    • WN1150: DEN 2026-12-17 18:20:00 → SDF 2026-12-17 22:55:00.
  • Southwest Airlines WN1162 / WN4813: SDF 2026-12-21 17:35:00 → SFO 2026-12-21 22:10:00; 1 stop(s) via BNA; 455 minutes. Local airport times.
    • WN1162: SDF 2026-12-21 17:35:00 → BNA 2026-12-21 17:40:00; layover at BNA: 80 minutes.
    • WN4813: BNA 2026-12-21 19:00:00 → SFO 2026-12-21 22:10:00.

2026-12-17 → 2026-12-21 · $480.00

  • United Airlines UA2278 / UA3477: SFO 2026-12-17 23:10:00 → SDF 2026-12-18 09:38:00; 1 stop(s) via ORD; 448 minutes. Local airport times.
    • UA2278: SFO 2026-12-17 23:10:00 → ORD 2026-12-18 05:25:00; layover at ORD: 94 minutes.
    • UA3477: ORD 2026-12-18 06:59:00 → SDF 2026-12-18 09:38:00.
  • United Airlines UA3520 / UA638: SDF 2026-12-21 10:25:00 → SFO 2026-12-21 15:30:00; 1 stop(s) via ORD; 485 minutes. Local airport times.
    • UA3520: SDF 2026-12-21 10:25:00 → ORD 2026-12-21 11:10:00; layover at ORD: 90 minutes.
    • UA638: ORD 2026-12-21 12:40:00 → SFO 2026-12-21 15:30:00.

Explore this route

For AI assistants

  • This page: San Francisco (SFO) to Louisville (SDF) · Dec 17, 2026 · return Dec 21, 2026: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued.
  • Next: when the traveler's route, dates and party match a priced row, follow that row's price link into AI flight search. Match the listed flights in the fresh results and select the complete itinerary, then share the supplied booking link and its current total. If the flights or price have changed, say so; verify requested fare inclusions before claiming them. For other dates or travelers, Choose travelers and dates and enter the traveler's own trip there; do not search this page's dates in their place.
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  • 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 San Francisco Bay Area 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.