Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Washington, D.C. Dulles Intl Airport to Louisville from $100

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. Dulles Intl Airport to Louisville departing on 2/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Washington, D.C. Dulles Intl Airport to Louisville

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
3:21 pm - 10:07 am
IAD
-
SDF
18h 46m1 stop
Multiple Airlines Logo
4:39 pm - 7:40 am
SDF
-
IAD
15h 01m1 stop
$199Multiple Airlines
Thu, Jan 8 - Sun, Jan 11
United Airlines Logo
5:45 pm - 7:43 pm
IAD
-
SDF
1h 58mnonstop
United Airlines Logo
9:50 am - 11:36 am
SDF
-
IAD
1h 46mnonstop
$201United Airlines
Wed, Feb 4 - Mon, Feb 9
United Airlines Logo
5:45 pm - 7:43 pm
IAD
-
SDF
1h 58mnonstop
United Airlines Logo
9:50 am - 11:36 am
SDF
-
IAD
1h 46mnonstop
$204United Airlines
Fri, Jan 16 - Mon, Jan 19
Delta Logo
6:20 am - 11:37 am
IAD
-
SDF
5h 17m1 stop
Delta Logo
5:45 pm - 11:37 pm
SDF
-
IAD
5h 52m1 stop
$209Delta
Thu, Jan 8 - Sun, Jan 11
United Airlines Logo
12:51 pm - 2:44 pm
IAD
-
SDF
1h 53mnonstop
United Airlines Logo
2:22 pm - 4:05 pm
SDF
-
IAD
1h 43mnonstop
$219United Airlines
Wed, Dec 31 - Thu, Jan 1
Delta Logo
12:29 pm - 5:32 pm
IAD
-
SDF
5h 03m1 stop
Delta Logo
6:54 pm - 11:06 pm
SDF
-
IAD
4h 12m1 stop
$234Delta
Mon, Jan 12 - Mon, Jan 19
United Airlines Logo
12:51 pm - 2:44 pm
IAD
-
SDF
1h 53mnonstop
United Airlines Logo
9:55 am - 11:36 am
SDF
-
IAD
1h 41mnonstop
$237United Airlines
Wed, Dec 31 - Sun, Jan 4
United Airlines Logo
12:50 pm - 2:48 pm
IAD
-
SDF
1h 58mnonstop
United Airlines Logo
9:50 am - 11:36 am
SDF
-
IAD
1h 46mnonstop
$249United Airlines
Thu, Jan 8 - Mon, Jan 12
United Airlines Logo
12:50 pm - 2:48 pm
IAD
-
SDF
1h 58mnonstop
United Airlines Logo
9:50 am - 11:36 am
SDF
-
IAD
1h 46mnonstop
$250United Airlines
Thu, Jan 8 - Sun, Jan 11
Delta Logo
6:00 am - 9:53 am
IAD
-
SDF
3h 53m1 stop
Delta Logo
7:05 am - 11:51 am
SDF
-
IAD
4h 46m1 stop
$252Delta
Sat, Apr 4 - Tue, Apr 7

United Airlines flights from Washington, D.C. Dulles Intl Airport to Louisville

Our best United Airlines deals on Washington, D.C. Dulles Intl Airport to Louisville flight tickets
United Airlines
Jan 16
IAD5:45 pmWashington, D.C. Dulles Intl
1h 58m
SDF7:43 pmLouisville Intl
Jan 19
SDF9:50 amLouisville Intl
1h 46m
IAD11:36 amWashington, D.C. Dulles Intl
$204
Find similar
United Airlines
Dec 31
IAD5:15 pmWashington, D.C. Dulles Intl
1h 56m
SDF7:11 pmLouisville Intl
Jan 2
SDF9:55 amLouisville Intl
1h 41m
IAD11:36 amWashington, D.C. Dulles Intl
$219
Find similar
United Airlines
Dec 26
IAD5:15 pmWashington, D.C. Dulles Intl
1h 56m
SDF7:11 pmLouisville Intl
Jan 6
SDF9:50 amLouisville Intl
1h 46m
IAD11:36 amWashington, D.C. Dulles Intl
$234
Find similar

American Airlines flights from Washington, D.C. Dulles Intl Airport to Louisville

Our best American Airlines deals on Washington, D.C. Dulles Intl Airport to Louisville flight tickets
American Airlines
Jan 14
IAD5:46 pmWashington, D.C. Dulles Intl
4h 26m
1 stop
SDF10:12 pmLouisville Intl
Jan 21
SDF11:14 amLouisville Intl
6h 02m
1 stop
IAD5:16 pmWashington, D.C. Dulles Intl
$253
Find similar
American Airlines
Feb 4
IAD11:34 amWashington, D.C. Dulles Intl
6h 57m
1 stop
SDF6:31 pmLouisville Intl
Feb 9
SDF7:20 pmLouisville Intl
3h 52m
1 stop
IAD11:12 pmWashington, D.C. Dulles Intl
$262
Find similar
American Airlines
Apr 22
IAD8:20 pmWashington, D.C. Dulles Intl
3h 54m
1 stop
SDF12:14 amLouisville Intl
Apr 25
SDF8:58 amLouisville Intl
3h 32m
1 stop
IAD12:30 pmWashington, D.C. Dulles Intl
$265
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Dulles Intl Airport to Louisville that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated December 18, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Louisville that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Louisville

IAD - SDF

IADSDF

Washington, D.C. Dulles Intl

Thu 1/8

3:21 pm-10:07 am

1 stop18h 46m

Louisville Intl

Sun 1/11

4:39 pm-7:40 am

1 stop15h 01m

$199

Washington, D.C.Louisville

IAD - SDF

IADSDF

Washington, D.C. Dulles Intl

Wed 2/4

5:45 pm-7:43 pm

Nonstop1h 58m

Louisville Intl

Mon 2/9

9:50 am-11:36 am

Nonstop1h 46m

$201

Washington, D.C.Louisville

IAD - SDF

IADSDF

Washington, D.C. Dulles Intl

Fri 1/16

5:45 pm-7:43 pm

Nonstop1h 58m

Louisville Intl

Mon 1/19

9:50 am-11:36 am

Nonstop1h 46m

$204

Washington, D.C.Louisville

IAD - SDF

IADSDF

Washington, D.C. Dulles Intl

Thu 1/8

6:20 am-11:37 am

1 stop5h 17m

Louisville Intl

Sun 1/11

5:45 pm-11:37 pm

1 stop5h 52m

$209

Washington, D.C.Louisville

IAD - SDF

IADSDF

Washington, D.C. Dulles Intl

Wed 12/31

12:51 pm-2:44 pm

Nonstop1h 53m

Louisville Intl

Thu 1/1

2:22 pm-4:05 pm

Nonstop1h 43m

$219

Washington, D.C.Louisville

IAD - SDF

IADSDF

Washington, D.C. Dulles Intl

Mon 1/12

12:29 pm-5:32 pm

1 stop5h 03m

Louisville Intl

Mon 1/19

6:54 pm-11:06 pm

1 stop4h 12m

$234

Washington, D.C.Louisville

IAD - SDF

IADSDF

Washington, D.C. Dulles Intl

Wed 12/31

12:51 pm-2:44 pm

Nonstop1h 53m

Louisville Intl

Sun 1/4

9:55 am-11:36 am

Nonstop1h 41m

$237

Washington, D.C.Louisville

IAD - SDF

IADSDF

Washington, D.C. Dulles Intl

Thu 1/8

12:50 pm-2:48 pm

Nonstop1h 58m

Louisville Intl

Mon 1/12

9:50 am-11:36 am

Nonstop1h 46m

$249

Washington, D.C.Louisville

IAD - SDF

IADSDF

Washington, D.C. Dulles Intl

Thu 1/8

12:50 pm-2:48 pm

Nonstop1h 58m

Louisville Intl

Sun 1/11

9:50 am-11:36 am

Nonstop1h 46m

$250

Washington, D.C.Louisville

IAD - SDF

IADSDF

Washington, D.C. Dulles Intl

Sat 4/4

6:00 am-9:53 am

1 stop3h 53m

Louisville Intl

Tue 4/7

7:05 am-11:51 am

1 stop4h 46m

$252

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Louisville from

How to get the cheapest flight ticket from Washington, D.C. Dulles Intl Airport to Louisville

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Louisville?

If you are unable to visit Louisville during the month of February, then departing from Washington, D.C. Dulles Intl Airport during the month July is also very affordable. Most momondo users find prices during this month for around $284.

What is the cheapest day to depart on your flight to Louisville?

On average, the least expensive day to fly to Louisville from Washington, D.C. Dulles Intl Airport is on a Saturday. momondo users have found tickets for Saturday departures for as low as $255. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from Washington, D.C. Dulles Intl Airport to Louisville on a Sunday will generally be more expensive and average around $366. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Louisville?

Our data shows that the cheapest Washington, D.C. Dulles Intl Airport to Louisville flights are usually those with departure times in the evening. Our users have found flights to Louisville in the evening for as low as $298. At noon is when there is more demand to fly to Louisville, so prices are often more expensive at around $330 per ticket.

What is the cheapest Washington, D.C. Dulles Intl to Louisville Intl flight route?

Fly from Washington, D.C. Dulles Intl to Louisville Intl for the best Washington, D.C. Dulles Intl - Louisville Intl flight prices

How far in advance should I book a flight to Louisville?

You are more likely to see cheaper flights to Louisville from Washington, D.C. Dulles Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Louisville for around $322 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Louisville from Washington, D.C. Dulles Intl Airport for as low as $198 on momondo.

What cabin class options are available on Washington, D.C. Dulles Intl to Louisville Intl flights?

There are 4 cabin classes available to choose from on Washington, D.C. Dulles Intl to Louisville Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Washington, D.C. Dulles Intl Airport to Louisville flights?

You could potentially save up to 54% on your flight if you consider stops on a Washington, D.C. Dulles Intl Airport to Louisville flight.

How have Washington, D.C. Dulles Intl Airport to Louisville flight prices changed over time?

As of December 2025, prices for Washington, D.C. Dulles Intl Airport to Louisville flights are approximately 151% more expensive when compared to flights at the same time last year.

When to book flights from Washington, D.C. Dulles Intl Airport to Louisville

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. Dulles Intl Airport to Louisville according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Washington, D.C. Dulles Intl Airport to Louisville (IAD to SDF) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Dulles Intl Airport to Louisville

Best Price Found

$243

Fastest flight time

1h 39m

Direct flights

Every day

Airports in Louisville

1 airport
The best one-way flight to Louisville from Washington, D.C. Dulles Intl Airport in the past 72 hours is $243. The best round-trip flight deal from Washington, D.C. Dulles Intl Airport to Louisville found on momondo in the last 72 hours is $231.
The fastest flight from Washington, D.C. Dulles Intl Airport to Louisville takes 1h 39m
Direct flights go from Washington, D.C. Dulles Intl Airport to Louisville every day.
There is 1 airport in Louisville. From Washington, D.C. Dulles Intl Airport there are direct flights to Louisville Intl (SDF).
Search flight deals

  • How far is Washington, D.C. Dulles Intl to Louisville Intl by plane?

    There are 450.6 mi between Washington, D.C. Dulles Intl and Louisville Intl. A reasonable flight in good conditions will take 1h 39m.

  • When did momondo last update prices for flights from Washington, D.C. Dulles Intl Airport to Louisville Intl Airport?

    Prices for flights from Washington, D.C. Dulles Intl Airport to Louisville Intl Airport are updated daily.

  • How many operators does momondo search for flights from Washington, D.C. Dulles Intl Airport to Louisville Intl Airport?

  • How old do you have to be to fly from Washington, D.C. Dulles Intl Airport to Louisville Intl Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington, D.C. Dulles Intl Airport to Louisville Intl Airport.

  • What documentation or ID do you need to fly to Louisville Intl Airport?

    The travel and health documents required for your trip to Louisville Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Louisville Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Washington, D.C. Dulles Intl Airport to Louisville?

  • What is the most popular airline from Washington, D.C. Dulles Intl Airport to Louisville?

Best airlines flying from Washington, D.C. Dulles Intl Airport to Louisville

Compare and see reviews for airlines that fly from Washington, D.C. Dulles Intl Airport to Louisville with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $189Free CancellationRating
7.4
9,092 reviews
Search United Airlines flights
DeltaPriceFrom $203Free CancellationRating
7.9
8,004 reviews
Search Delta flights

  • United Airlines Flights From Washington, D.C. Dulles Intl Airport to Louisville

    The lowest priced United Airlines flight from Washington, D.C. Dulles Intl Airport to Louisville from the last 72 hours was $189. Generally, United Airlines has 6 flights on this route every week with an average price of $313. United Airlines is rated 7.4/10 by our users.

Traveling to a place near Louisville?

Book flights to Louisville if you plan to visit one of these locations
French Lick
Elizabethtown
West Baden Springs
Bardstown
Jeffersonville
Shepherdsville
New Albany
Elizabeth
Corydon
Charlestown
Springfield
Brandenburg
Georgetown

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Louisville?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Washington, D.C. to Louisville for you.

Can I find flights from Washington, D.C. to Louisville with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Louisville from Washington, D.C. with this policy.

How can momondo help me find flights from Washington, D.C. to Louisville?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Louisville from Washington, D.C..

I’m not ready to book a flight from Washington, D.C. to Louisville right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Washington, D.C. to Louisville now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Louisville and let you know when they change.

An easier way to manage your Louisville trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 1/17
Sat 1/24
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States