Trip.com
>
Flights
>
Flights to United States
>
Flights to Kentucky
>
Flights to Louisville
>
Washington D.C. to Louisville flight
>
Dulles International Airport to Louisville International Airport flight

Explore the cheapest one-way and round-trip flights from Dulles International Airport to Louisville International Airport over the next 90 days, with one-way fares from CAD 291 and round-trip from CAD 301. Based on Trip.com's latest 7-day flight data.

    • Cheapest nonstop
      IAD 12:50 PM
      1h 47m
      Nonstop
      SDF 2:37 PM
      Washington D.C. - Louisville | Sat, Dec 5 | United Airlines
      SDF 9:55 AM
      1h 39m
      Nonstop
      IAD 11:34 AM
      Louisville - Washington D.C. | Sat, Dec 12 | United Airlines
      CAD 389 CAD 435
      11% off
      11% off
      CAD 435 CAD 389
    • IAD 12:50 PM
      1h 57m
      Nonstop
      SDF 2:47 PM
      Washington D.C. - Louisville | Wed, Nov 11 | United Airlines
      SDF 9:55 AM
      1h 38m
      Nonstop
      IAD 11:33 AM
      Louisville - Washington D.C. | Wed, Nov 18 | United Airlines
      CAD 391 CAD 435
      10% off
      10% off
      CAD 435 CAD 391
    • IAD 5:00 PM
      4h 51m
      1 stop
      SDF 9:51 PM
      Washington D.C. - Louisville | Sat, Dec 5 | Delta Air Lines
      SDF 7:41 AM
      3h 54m
      1 stop
      DCA 11:35 AM
      Louisville - Washington D.C. | Sat, Dec 12 | Delta Air Lines
      CAD 301 CAD 435
      31% off
      31% off
      CAD 435 CAD 301
    • IAD 5:00 PM
      4h 42m
      1 stop
      SDF 9:42 PM
      Washington D.C. - Louisville | Fri, Nov 27 | Delta Air Lines
      SDF 5:56 PM
      5h 27m
      1 stop
      IAD 11:23 PM
      Louisville - Washington D.C. | Sat, Dec 5 | Delta Air Lines
      CAD 324
      26% off
      CAD 435 CAD 324
    • IAD 10:06 AM
      4h 7m
      1 stop
      SDF 2:13 PM
      Washington D.C. - Louisville | Sat, Nov 21 | Delta Air Lines
      SDF 5:59 PM
      5h 45m
      1 stop
      DCA 11:44 PM
      Louisville - Washington D.C. | Wed, Nov 25 | Delta Air Lines
      CAD 327
      25% off
      CAD 435 CAD 327
    • IAD 10:06 AM
      4h 7m
      1 stop
      SDF 2:13 PM
      Washington D.C. - Louisville | Sun, Nov 22 | Delta Air Lines
      SDF 5:59 PM
      5h 45m
      1 stop
      DCA 11:44 PM
      Louisville - Washington D.C. | Wed, Nov 25 | Delta Air Lines
      CAD 327
      25% off
      CAD 435 CAD 327
    • IAD 7:37 PM
      4h 33m
      1 stop
      SDF 12:10 AM
      Washington D.C. - Louisville | Mon, Nov 16 | Delta Air Lines
      SDF 8:05 AM
      5h 49m
      1 stop
      IAD 1:54 PM
      Louisville - Washington D.C. | Thu, Nov 19 | Delta Air Lines
      CAD 331
      24% off
      CAD 435 CAD 331
    • IAD 11:37 AM
      5h 15m
      1 stop
      SDF 4:52 PM
      Washington D.C. - Louisville | Wed, Nov 25 | Delta Air Lines
      SDF 10:13 AM
      3h 41m
      1 stop
      IAD 1:54 PM
      Louisville - Washington D.C. | Thu, Nov 26 | Delta Air Lines
      CAD 351
      19% off
      CAD 435 CAD 351
    • IAD 3:00 PM
      5h 54m
      1 stop
      SDF 8:54 PM
      Washington D.C. - Louisville | Mon, Dec 21 | Delta Air Lines
      SDF 6:56 PM
      4h 33m
      1 stop
      DCA 11:29 PM
      Louisville - Washington D.C. | Wed, Dec 23 | Delta Air Lines
      CAD 351
      19% off
      CAD 435 CAD 351
    • WAS 1:00 PM
      17h 25m
      1 stop
      SDF 2:00 PM
      Washington D.C. - Louisville | Mon, Nov 2 | Normal Airline
      SDF 3:00 PM
      6h
      Nonstop
      WAS 4:00 PM
      Louisville - Washington D.C. | Wed, Nov 4 | Normal Airline
      Find more flights
      Find more flights
    • Cheapest
      IAD 11:48 AM
      4h 20m
      1 stop
      SDF 4:08 PM
      Washington D.C. - Louisville | Sat, Dec 12 | American Airlines
      CAD 291 CAD 377
      23% off
      23% off
      CAD 377 CAD 291
    • IAD 6:12 PM
      5h 47m
      1 stop
      SDF 11:59 PM
      Washington D.C. - Louisville | Fri, Nov 13 | Delta Air Lines
      CAD 295 CAD 377
      22% off
      22% off
      CAD 377 CAD 295
    • IAD 6:00 AM
      4h 21m
      1 stop
      SDF 10:21 AM
      Washington D.C. - Louisville | Tue, Nov 10 | Delta Air Lines
      CAD 296 CAD 377
      21% off
      21% off
      CAD 377 CAD 296
    • IAD 6:00 AM
      5h 20m
      1 stop
      SDF 11:20 AM
      Washington D.C. - Louisville | Fri, Nov 13 | American Airlines
      CAD 300
      20% off
      CAD 377 CAD 300
    • IAD 6:00 AM
      5h 57m
      1 stop
      SDF 11:57 AM
      Washington D.C. - Louisville | Wed, Dec 23 | Delta Air Lines
      CAD 301
      20% off
      CAD 377 CAD 301
    • IAD 6:00 AM
      4h 40m
      1 stop
      SDF 10:40 AM
      Washington D.C. - Louisville | Sat, Dec 12 | Delta Air Lines
      CAD 301
      20% off
      CAD 377 CAD 301
    • IAD 12:55 PM
      1h 56m
      Nonstop
      SDF 2:51 PM
      Washington D.C. - Louisville | Wed, Dec 23 | United Airlines
      CAD 320
      15% off
      CAD 377 CAD 320
    • IAD 8:37 AM
      1h 57m
      Nonstop
      SDF 10:34 AM
      Washington D.C. - Louisville | Thu, Nov 5 | United Airlines
      CAD 324
      14% off
      CAD 377 CAD 324
    • IAD 8:17 AM
      1h 57m
      Nonstop
      SDF 10:14 AM
      Washington D.C. - Louisville | Sat, Dec 5 | United Airlines
      CAD 331
      12% off
      CAD 377 CAD 331
    • WAS 1:00 PM
      17h 25m
      1 stop
      SDF 2:00 PM
      Washington D.C. - Louisville | Mon, Nov 2 | Normal Airline
      Find more flights
      Find more flights
    • Cheapest nonstop
      IAD 12:55 PM
      1h 56m
      Nonstop
      SDF 2:51 PM
      Washington D.C. - Louisville | Wed, Dec 23 | United Airlines
      CAD 320 CAD 377
      15% off
      15% off
      CAD 377 CAD 320
    • IAD 8:37 AM
      1h 57m
      Nonstop
      SDF 10:34 AM
      Washington D.C. - Louisville | Thu, Nov 5 | United Airlines
      CAD 324 CAD 377
      14% off
      14% off
      CAD 377 CAD 324
    • IAD 8:17 AM
      1h 57m
      Nonstop
      SDF 10:14 AM
      Washington D.C. - Louisville | Sat, Dec 5 | United Airlines
      CAD 331 CAD 377
      12% off
      12% off
      CAD 377 CAD 331
    • IAD 5:35 PM
      1h 55m
      Nonstop
      SDF 7:30 PM
      Washington D.C. - Louisville | Fri, Nov 13 | United Airlines
      CAD 339
      10% off
      CAD 377 CAD 339
    • WAS 1:00 PM
      17h 25m
      1 stop
      SDF 2:00 PM
      Washington D.C. - Louisville | Mon, Nov 2 | Normal Airline
      Find more flights
      Find more flights
    • IAD 3:22 PM
      4h 15m
      1 stop
      SDF 7:37 PM
      Washington D.C. - Louisville | Mon, Dec 28 | American Airlines
      CAD 376 CAD 419
      10% off
      10% off
      CAD 419 CAD 376
    • IAD 6:00 AM
      4h 47m
      1 stop
      SDF 10:47 AM
      Washington D.C. - Louisville | Mon, Dec 28 | Delta Air Lines
      CAD 377 CAD 419
      10% off
      10% off
      CAD 419 CAD 377
    • WAS 1:00 PM
      17h 25m
      1 stop
      SDF 2:00 PM
      Washington D.C. - Louisville | Mon, Nov 2 | Normal Airline
      Find more flights
      Find more flights
    • IAD 5:35 PM
      1h 55m
      Nonstop
      SDF 7:30 PM
      Washington D.C. - Louisville | Fri, Nov 13 | United Airlines
      CAD 339 CAD 377
      10% off
      10% off
      CAD 377 CAD 339
    • IAD 12:55 PM
      1h 56m
      Nonstop
      SDF 2:51 PM
      Washington D.C. - Louisville | Wed, Dec 23 | United Airlines
      CAD 320 CAD 377
      15% off
      15% off
      CAD 377 CAD 320
    • IAD 8:37 AM
      1h 57m
      Nonstop
      SDF 10:34 AM
      Washington D.C. - Louisville | Thu, Nov 5 | United Airlines
      CAD 324 CAD 377
      14% off
      14% off
      CAD 377 CAD 324
    • IAD 8:17 AM
      1h 57m
      Nonstop
      SDF 10:14 AM
      Washington D.C. - Louisville | Sat, Dec 5 | United Airlines
      CAD 331
      12% off
      CAD 377 CAD 331
    • IAD 1:24 PM
      4h 2m
      1 stop
      SDF 5:26 PM
      Washington D.C. - Louisville | Mon, Nov 30 | American Airlines
      CAD 335
      11% off
      CAD 377 CAD 335
    • IAD 11:48 AM
      4h 20m
      1 stop
      SDF 4:08 PM
      Washington D.C. - Louisville | Sat, Dec 12 | American Airlines
      CAD 291
      23% off
      CAD 377 CAD 291
    • IAD 6:00 AM
      4h 21m
      1 stop
      SDF 10:21 AM
      Washington D.C. - Louisville | Tue, Nov 10 | Delta Air Lines
      CAD 296
      21% off
      CAD 377 CAD 296
    • IAD 6:00 AM
      4h 40m
      1 stop
      SDF 10:40 AM
      Washington D.C. - Louisville | Sat, Dec 12 | Delta Air Lines
      CAD 301
      20% off
      CAD 377 CAD 301
    • IAD 6:00 AM
      5h 20m
      1 stop
      SDF 11:20 AM
      Washington D.C. - Louisville | Fri, Nov 13 | American Airlines
      CAD 300
      20% off
      CAD 377 CAD 300
    • WAS 1:00 PM
      17h 25m
      1 stop
      SDF 2:00 PM
      Washington D.C. - Louisville | Mon, Nov 2 | Normal Airline
      Find more flights
      Find more flights

Displayed flight fares from Washington D.C. to Louisville are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Which airline offers the cheapest flights from Dulles International Airport to Louisville International Airport?

The cheapest airline flying from Dulles International Airport to Louisville International Airport is Delta Air Lines (from CAD 286) among 4 carriers operating this route. Based on Trip.com's latest 7-day flight data.

Delta Air Lines
From CAD 286
American Airlines
From CAD 288
Frontier Airlines
From CAD 316
United Airlines
From CAD 320

Find more flights and airlines

What is the flight schedule from Dulles International Airport to Louisville International Airport?

Check the schedule for flights from Washington D.C. to Louisville and find the flight that best matches your travel plans.

Flight info.
Departure
Arrival
Weekly Schedule

  1. UA3980

    Dulles International Airport

    1:00 PM

    IAD

    1h 47m

    2:47 PM

    SDF

    S M T W T F S
    Search

  2. UA4055

    Dulles International Airport

    5:35 PM

    IAD

    1h 39m

    7:14 PM

    SDF

    S M T W T F S
    Search

  3. AA5220

    Dulles International Airport

    1:09 PM

    IAD

    1h 35m

    Nonstop

    2:44 PM

    CLT

    - - - W T F S
    Search

  4. AA2854

    Charlotte Douglas International Airport

    4:02 PM

    CLT

    1h 30m

    Nonstop

    5:32 PM

    SDF

    S M T W T F S

  5. DL1324

    Dulles International Airport

    10:45 AM

    IAD

    1h 55m

    Nonstop

    12:40 PM

    ATL

    S M T W T F S
    Search

  6. DL3195

    Hartsfield–Jackson Atlanta International Airport

    12:20 PM

    ATL

    1h 20m

    Nonstop

    1:40 PM

    SDF

    S M T W T F S

  7. AA5222

    Dulles International Airport

    12:46 PM

    IAD

    1h 33m

    Nonstop

    2:19 PM

    CLT

    S M T W T F S
    Search

  8. AA5126

    Charlotte Douglas International Airport

    10:41 PM

    CLT

    1h 38m

    Nonstop

    12:19 AM

    SDF

    S M T W T F S

  9. DL2327

    Dulles International Airport

    6:00 AM

    IAD

    1h 58m

    Nonstop

    7:58 AM

    ATL

    S M T W T F S
    Search

  10. DL1374

    Hartsfield–Jackson Atlanta International Airport

    8:20 AM

    ATL

    1h 24m

    Nonstop

    9:44 AM

    SDF

    S M T W T F S

  11. DL1324

    Dulles International Airport

    10:45 AM

    IAD

    1h 55m

    Nonstop

    12:40 PM

    ATL

    S M T W T F S
    Search

  12. DL1126

    Hartsfield–Jackson Atlanta International Airport

    3:35 PM

    ATL

    1h 20m

    Nonstop

    4:55 PM

    SDF

    S M T W T F S

  13. DL2327

    Dulles International Airport

    6:00 AM

    IAD

    1h 58m

    Nonstop

    7:58 AM

    ATL

    S M T W T F S
    Search

  14. DL1481

    Hartsfield–Jackson Atlanta International Airport

    10:36 AM

    ATL

    1h 26m

    Nonstop

    12:02 PM

    SDF

    S M T W T F S

  15. DL1354

    Dulles International Airport

    7:15 AM

    IAD

    1h 58m

    Nonstop

    9:13 AM

    ATL

    S M T W T F S
    Search

  16. DL3195

    Hartsfield–Jackson Atlanta International Airport

    12:20 PM

    ATL

    1h 20m

    Nonstop

    1:40 PM

    SDF

    S M T W T F S
Find more flights and airlines

About Dulles International Airport and Louisville International Airport

Learn about Dulles International Airport (IAD) and Louisville International Airport (SDF) — including location, terminals, transportation, and travel tips.

Flight distance 726.64 km
Cheapest one-way ticket price CAD 291
Cheapest return ticket price CAD 301

FAQs for Dulles International Airport to Louisville International Airport Flights

  • How long is the flight from Dulles International Airport to Louisville International Airport?

    Dulles International Airport to Louisville International Airport takes about 1 hour 15 minutes on average. Actual flight time may vary depending on route, weather and air traffic.
  • There are around 2 daily flights from Dulles International Airport (IAD) to Louisville International Airport (SDF).
  • The earliest flight from Dulles International Airport to Louisville International Airport departs at 08:35, and the last departs at 17:35, with about 5 flights per day. Flight times may change, so please check the latest departure and arrival times before you travel.
  • The route from Dulles International Airport (IAD) to Louisville International Airport (SDF) is quite popular. Without considering departure times or holidays, tickets cost around CAD 615 in October, the most expensive month to book this route.
  • The earliest flight departs from Dulles International Airport (IAD) at 08:29 and arrives in Louisville International Airport (SDF) at 10:16.
  • The latest flight departs from Dulles International Airport (IAD) at 17:10 and arrives in Louisville International Airport (SDF) at 18:49.
  • United Airlines is a very popular airline operating an average of 96 flights per month.
  • One-way flights from Dulles International Airport to Louisville International Airport currently start from CAD 291, and round-trip fares start from CAD 301. The current lowest fare is a American Airlines flight departing on Sat, Dec 12; prices may vary depending on availability.
  • Yes. United Airlines operate direct flights from Dulles International Airport to Louisville International Airport, with an average flight time of 1 hour 15 minutes, and around 18 weekly flights. Actual flight frequency may vary by season.
  • Based on Trip.com flight data for departures within the next 30 days with at most one stop, the average one-way price from Dulles International Airport to Louisville International Airport is CAD 450. Prices may vary depending on the departure date, airline, and availability.
  • Dulles International Airport to Louisville International Airport operates around 18 weekly flights, mainly by United Airlines. Actual frequency may vary during holidays and seasonal schedule adjustments.
  • Enter Dulles International Airport and Louisville International Airport, select your departure date and number of passengers, then compare flights by price, flight duration, and baggage allowance. Once you've chosen a fare, review the change and refund rules, fill in passenger details, and pay to receive your booking confirmation.

Popular Destinations

Note: Prices shown on this page are estimated lowest price and include all taxes and fees found in the last 24 hours.

Book with no extra fees

Prices displayed in this page are all-inclusive prices (incl. taxes, fuel surcharge, civil aviation development fund, etc) with all fees confirmed before payment. Fees for luggage, meals, WLAN, or other additional services are also included as shown in the flight cards.

Real-time pricing updates

Prices, availability, and travel information on this page were updated within last 24 hours—even in real-time. The more popular the route, the more precise the data.

Change & Cancellation Policy

Trip.com displays flight cancellation and change policies for each flight ticket during the booking process, including fees and applicable conditions. Please check the following scenarios:
Voluntary cancellation/change:
To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy.
Cancellation/change due to a flight schedule change:
If the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.