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Route overview: Washington, DC to Louisville (SDF) flight deals

Dulles → Louisville

Dec 12, 2026 · return Dec 14, 2026

IAD → SDF1 adulteconomyRound trip

3 flight options · 3 airlines

Nonstop flights

Sat, Dec 12 – Mon, Dec 14

United Airlines
5:43 pmIAD
1h 52m
Nonstop
7:35 pmSDF
United Airlines
2:25 pmSDF
1h 38m
Nonstop
4:03 pmIAD

Round-trip total · 1 adult · Taxes included

One-stop flights

Sat, Dec 12 – Mon, Dec 14

American Airlines
6:00 amIAD
4h 54m
CLT · 1h 17m
10:54 amSDF
American Airlines
5:02 amSDF
6h 14m
CLT · 3h 15m
11:16 amIAD

Round-trip total · 1 adult · Taxes included

Sat, Dec 12 – Mon, Dec 14

Delta Air Lines
11:30 amIAD
5h 46m
DTW · 2h 41m
5:16 pmSDF
Delta Air Lines
5:56 pmSDF
5h 14m
DTW · 2h 8m
11:10 pmIAD

Round-trip total · 1 adult · Taxes included

Make this trip yours

IAD ⇄ 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 routeDec 11, 2026 → Dec 13, 2026Dec 13, 2026 → Dec 15, 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: Washington, DC to Louisville (SDF) flight deals

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2026-12-12 → 2026-12-14United AirlinesUA4068 / UA4067$340.002026-10-29T01:07:59Z
2026-12-12 → 2026-12-14American AirlinesAA5649 + AA5479 / AA647 + AA5446$310.002026-10-29T01:07:59Z
2026-12-12 → 2026-12-14Delta Air LinesDL5517 + DL5491 / DL5451 + DL4704$330.002026-10-29T01:07:59Z

2026-12-12 → 2026-12-14 · $340.00

  • United Airlines UA4068: IAD 2026-12-12 17:43:00 → SDF 2026-12-12 19:35:00; nonstop; 112 minutes. Local airport times.
  • United Airlines UA4067: SDF 2026-12-14 14:25:00 → IAD 2026-12-14 16:03:00; nonstop; 98 minutes. Local airport times.

2026-12-12 → 2026-12-14 · $310.00

  • American Airlines AA5649 / AA5479: IAD 2026-12-12 06:00:00 → SDF 2026-12-12 10:54:00; 1 stop(s) via CLT; 294 minutes. Local airport times.
    • AA5649: IAD 2026-12-12 06:00:00 → CLT 2026-12-12 07:48:00; layover at CLT: 77 minutes.
    • AA5479: CLT 2026-12-12 09:05:00 → SDF 2026-12-12 10:54:00.
  • American Airlines AA647 / AA5446: SDF 2026-12-14 05:02:00 → IAD 2026-12-14 11:16:00; 1 stop(s) via CLT; 374 minutes. Local airport times.
    • AA647: SDF 2026-12-14 05:02:00 → CLT 2026-12-14 06:30:00; layover at CLT: 195 minutes.
    • AA5446: CLT 2026-12-14 09:45:00 → IAD 2026-12-14 11:16:00.

2026-12-12 → 2026-12-14 · $330.00

  • Delta Air Lines DL5517 / DL5491: IAD 2026-12-12 11:30:00 → SDF 2026-12-12 17:16:00; 1 stop(s) via DTW; 346 minutes. Local airport times.
    • DL5517: IAD 2026-12-12 11:30:00 → DTW 2026-12-12 13:09:00; layover at DTW: 161 minutes.
    • DL5491: DTW 2026-12-12 15:50:00 → SDF 2026-12-12 17:16:00.
  • Delta Air Lines DL5451 / DL4704: SDF 2026-12-14 17:56:00 → IAD 2026-12-14 23:10:00; 1 stop(s) via DTW; 314 minutes. Local airport times.
    • DL5451: SDF 2026-12-14 17:56:00 → DTW 2026-12-14 19:22:00; layover at DTW: 128 minutes.
    • DL4704: DTW 2026-12-14 21:30:00 → IAD 2026-12-14 23:10:00.

Explore this route

For AI assistants

  • This page: Dulles (IAD) to Louisville (SDF) · Dec 12, 2026 · return Dec 14, 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.
  • 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 Washington, DC 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.