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SDF - IAD

$103 Find cheap flights from Louisville to Washington Dulles Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Louisville to Dulles Intl departing on 7/17. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Tue 6/4
Tue 6/11

Search hundreds of travel sites at once for deals on flights to Washington Dulles Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Louisville to Washington, D.C., as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Louisville to Washington, D.C., as well as popular online travel agencies
In the last 7 days travelers have searched 43,369,418 times on KAYAK, and here is why:

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

Cheap flight deals from Louisville to Dulles Intl (SDF-IAD)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Louisville to Dulles Intl that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
6:00 am - 7:35 amSDF-IAD
1h 35mnonstop
6:15 pm - 8:02 pmIAD-SDF
1h 47mnonstop
$169United Airlines
Find Deal
Sat, May 25 - Tue, May 28
6:00 am - 7:35 amSDF-IAD
1h 35mnonstop
9:00 am - 10:44 amIAD-SDF
1h 44mnonstop
$179United Airlines
Find Deal
Thu, May 30 - Sun, Jun 2
6:00 am - 7:35 amSDF-IAD
1h 35mnonstop
5:33 pm - 10:58 pmIAD-SDF
5h 25m1 stop
$186United Airlines
Find Deal
Sat, May 25 - Tue, May 28
9:30 am - 11:12 amSDF-IAD
1h 42mnonstop
9:00 am - 10:44 amIAD-SDF
1h 44mnonstop
$189United Airlines
Find Deal
Thu, Jun 27 - Sun, Jun 30
5:44 pm - 11:55 pmSDF-IAD
6h 11m1 stop
6:00 am - 9:50 amIAD-SDF
3h 50m1 stop
$198Delta
Find Deal
Thu, May 30 - Sun, Jun 2
3:31 pm - 9:46 pmSDF-IAD
6h 15m1 stop
6:00 am - 9:31 amIAD-SDF
3h 31m1 stop
$203Delta
Find Deal
Mon, Jun 17 - Sat, Aug 17
8:14 pm - 12:01 amSDF-IAD
3h 47m1 stop
8:12 pm - 12:08 amIAD-SDF
3h 56m1 stop
$265American Airlines
Find Deal
Sun, May 26 - Fri, May 31
7:43 am - 8:22 pmSDF-IAD
12h 39m2 stops
5:35 pm - 5:17 pmIAD-SDF
23h 42m3 stops
Sat, May 25 - Tue, May 28
10:29 am - 11:20 amSDF-IAD
24h 51m3 stops
5:35 pm - 11:18 pmIAD-SDF
29h 43m3 stops
Mon, Jun 3 - Mon, Jun 10
8:19 pm - 12:01 amSDF-IAD
3h 42m1 stop
3:27 pm - 7:29 pmIAD-SDF
4h 02m1 stop
$287American Airlines
Find Deal
Sat, May 18 - Tue, May 21

Flights from Louisville to Dulles Intl - Travel Insights & Trends

Get data-powered insights and trends into flights from Louisville to Dulles Intl to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Louisville to Washington Dulles Airport?

The average price of all flights from Louisville to Washington, D.C. Dulles Intl Airport clicked on KAYAK for each day over the last 12 months.
When flying from Louisville to Washington Dulles Airport, you should consider leaving on a Friday and avoid Sundays if you are looking for the best rates. For your return to Louisville, you’ll find the best rates on Tuesdays and the most expensive ones on Mondays.

What is the cheapest month to fly from Louisville to Washington, D.C. Dulles Intl Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Louisville to Washington, D.C. Dulles Intl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Louisville to Washington, D.C. Dulles Intl Airport is February, where tickets cost $238 on average. On the other hand, the most expensive months are January and October, where the average cost of tickets is $448 and $400 respectively.

How far in advance should I book a flight from Louisville to Washington, D.C. Dulles Intl Airport?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Louisville to Washington, D.C. Dulles Intl Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Louisville to Washington, D.C. Dulles Intl Airport, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 20 days before departure.

Which airlines provide the cheapest flights from Louisville to Washington Dulles Airport?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 3 days, American Airlines offered the best one-way deal for that route, at $103. KAYAK users also found Louisville to Washington Dulles Airport round-trip flights on United Airlines from $169 and on Delta from $198.

Which airlines fly non-stop between Louisville and Washington, D.C. Dulles Intl Airport?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for flights from Louisville to Washington, D.C. Dulles Intl Airport.
There is just one airline that flies from Louisville to Washington, D.C. Dulles Intl Airport direct and that is United Airlines. The best one-way deal found from United Airlines for the route is $158.

How many flights are there between Louisville and Washington, D.C. Dulles Intl Airport per day?

Each day, there are 4 nonstop flights that take off from Louisville and land in Washington, D.C. Dulles Intl Airport, with an average flight time of 1h 39m. The most common departure time is 6:00 am and most flights take off in the afternoon. Each week, there are 28 flights and there are the same amount of flights each day 4.

Which cabin class options are there for flights between Louisville and Washington, D.C. Dulles Intl Airport?

The average price of flights for each cabin class for the route found by users searching on KAYAK over the last 2 weeks.
There are 4 cabin class options for the route. These are First, Business, Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

How long does a flight from Louisville to Washington Dulles Airport take?

The average nonstop flight takes 1h 35m, covering a distance of 450 miles.

What’s the earliest departure time from Louisville to Washington Dulles Airport?

Early birds can take the earliest flight from Louisville at 6:00 am and will be landing in Washington, D.C. Dulles Intl Airport at 7:35 am.

What’s the latest departure time from Louisville to Washington Dulles Airport?

If you prefer to fly at night, the latest flight from Louisville to Washington, D.C. Dulles Intl Airport jets off at 2:35 pm and lands at 4:17 pm.

Good to know

Low season

January

High season

May

Cheapest flight

$103
Best time to beat the crowds but there is an average 51% increase in price.
Most popular time to fly and prices are also 6% lower on average.
Flight from Louisville to Washington Dulles Airport

When to book flights from Louisville to Dulles Intl

Are your dates flexible? Find out the best times to travel from Louisville to Dulles Intl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Louisville to Washington Dulles Airport flights

  • What is the cheapest flight from Louisville to Washington, D.C. Dulles Intl Airport?

    In the last 3 days, the lowest price for a flight from Louisville to Washington, D.C. Dulles Intl Airport was $103 for a one-way ticket and $169 for a round-trip.

  • Do I need a passport to fly between Louisville and Washington Dulles Airport?

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which airports will I be using when flying from Louisville to Washington Dulles Airport?

    On your way to Washington Dulles Airport, you’ll fly out from Louisville Intl. You’ll be landing at Washington, D.C. Dulles Intl.

  • Which airlines offer Wi-Fi service onboard planes from Louisville to Washington Dulles Airport?

    American Airlines, Delta, Alaska Airlines, and JetBlue offer inflight Wi-Fi service on the Louisville to Washington Dulles Airport flight route.

  • Which aircraft models fly most regularly from Louisville to Washington Dulles Airport?

    The Embraer 175 (Enhanced Winglets) is the aircraft model that flies most regularly on the Louisville to Washington Dulles Airport flight route.

  • Which airline alliances offer flights from Louisville to Washington Dulles Airport?

    Star Alliance is the only airline alliance operating flights between Louisville and Washington Dulles Airport.

  • On which days can I fly direct from Louisville to Washington Dulles Airport?

    There are nonstop flights from Louisville to Washington Dulles Airport on a daily basis.

  • Which is the best airline for flights from Louisville to Washington, D.C., Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Louisville to Washington, D.C. are Delta and United Airlines. With an average price for the route of $320 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $269 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Louisville to Washington Dulles Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Louisville to Washington Dulles Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Louisville to Washington Dulles Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington Dulles Airport from Louisville is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Louisville to Washington Dulles Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Washington Dulles Airport with an airline and back to Louisville with another airline. Booking your flights between Louisville and IAD can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Louisville to Washington Dulles Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Washington Dulles Airport from Louisville up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding a cheap flight from SDF to Washington Dulles Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for $253 or less one-way and $432 or less round-trip.

Prefer to fly non-stop from Louisville to Washington Dulles Airport?

Find which airlines fly direct from Louisville Intl to Dulles Intl, which days they fly and book direct flights.

Nonstop departures

Louisville Intl to Washington, D.C. Dulles Intl

Monday

Air Canada, Copa Airlines, Lufthansa, +1 more

Air Canada, Copa Airlines, +2 more

Tuesday

Air Canada, Copa Airlines, Lufthansa, +1 more

Air Canada, Copa Airlines, +2 more

Wednesday

Air Canada, Copa Airlines, Lufthansa, +1 more

Air Canada, Copa Airlines, +2 more

Thursday

Air Canada, Copa Airlines, Lufthansa, +1 more

Air Canada, Copa Airlines, +2 more

Friday

Air Canada, Copa Airlines, Lufthansa, +1 more

Air Canada, Copa Airlines, +2 more

Saturday

Air Canada, Copa Airlines, Lufthansa, +1 more

Air Canada, Copa Airlines, +2 more

Sunday

Air Canada, Copa Airlines, Lufthansa, +1 more

Air Canada, Copa Airlines, +2 more

See more direct flights

Nonstop returns

Washington, D.C. Dulles Intl to Louisville Intl

Monday

Air Canada, Copa Airlines, Lufthansa, +1 more

Air Canada, Copa Airlines, +2 more

Tuesday

Air Canada, Copa Airlines, Lufthansa, +1 more

Air Canada, Copa Airlines, +2 more

Wednesday

Air Canada, Copa Airlines, Lufthansa, +1 more

Air Canada, Copa Airlines, +2 more

Thursday

Air Canada, Copa Airlines, Lufthansa, +1 more

Air Canada, Copa Airlines, +2 more

Friday

Air Canada, Copa Airlines, Lufthansa, +1 more

Air Canada, Copa Airlines, +2 more

Saturday

Air Canada, Copa Airlines, Lufthansa, +1 more

Air Canada, Copa Airlines, +2 more

Sunday

Air Canada, Copa Airlines, Lufthansa, +1 more

Air Canada, Copa Airlines, +2 more

See more direct flights
See more direct flights

Top airlines flying from Louisville to Dulles Intl

 
See real verified KAYAK customer reviews for airlines flying from Louisville to Washington, D.C.. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Louisville to Dulles Intl? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
DeltaOverall score based on 10826 reviews
8.6Crew
8.2Boarding
7.9Comfort
7.4Food
8.0Entertainment
Airline reviews

It was a good experience except when boarding a female flight attendant did not go out of her way to assist my teenage daughters in finding space for their carry-ons after their compartments were full.

10.0 ExcellentBranton, May 2024AVL - ATL
Read more about Delta reviews

It was a good experience except when boarding a female flight attendant did not go out of her way to assist my teenage daughters in finding space for their carry-ons after their compartments were full.

On time departure, smooth trip, flight attendant told through passengers the gate we would arrive at and the gate our outbound flight was departing from. Early arrival

Checking in at the airport the agent only booked the first keg of my trip and had my checked luggage going to the airport with a layover! Never was issued a boarding pass for the second leg or received sticker fir my checked bag. All was well in the end! Delta agents helped to resolve the situation!!!

Delayed due to an ill passenger after loading. Not preventable on Delta's part. Was in first class. The seats are becoming worn and detaching from their velcro attachments. Only got snacks on flight. The attendant was not the friendliest.

I would fly again the whole experience was great. The only feed back I can give that they don't do that American Airlines does is the crew there is more humorous with boarding and thank their passengers. It makes it more fun to fly with them. I would however fly Delta again.

From Atlanta to Cabo I would have hoped on a plane that size I would have been able to breathe and wiggle my feet a little! The leg room in that plane is non existent and I am only 5”4’. And the air vent either wasn’t working very well or just could not blow air from the ceiling to the seat area as I was suffocating through the entire flight! And please don’t say I would have been more comfortable in first class because I cannot afford those rates and have always travelled Main Cabin without issues !

The pilots were good. Disappointing when planes don't have electrical ports

I liked the piloting of the aircraft. Very disappointed about lack of electrical ports. Also, although a short flight. there was enough time to hand out snacks to comfort + seats as was done for first class.

I had a wonderful experience flying with delta. The gentleman taking care of us on our flight was so nice, accommodating, and attentive. He always was smiling and giving pins to the kids which made me smile. The flight was quick too and without turbulence. Thank you for the great flying experience.

Delta is one of the best airlines I have flown

All flights were on time and boarding was issue free

Water service would be great. The way they board is terrible. Slow passengers first😂😂 They need to smart up a bit

It got me where I needed it to; not much more. It had no competition so that was why I chose it.

Plane didn’t even make it off the ground. We all had to get off and walk to a different terminal (lots of confusion) to get on a different plane. Landed fairly late, connections missed.

Crowded flight, but upbeat and kind crew. Pilot greeted us at door, flight attendant thanked a number of “special” passengers for their business, another addressed an eight-year old boy as “young man.” United obviously trying to up their game, but though all of that is nice and notable, flying still feels like moving along a human assembly line, being herded into one small space after another (boarding areas with too few seats, planes with limited personal space, shuttles (IAD) packed too full.

It was ok until we got to DC and I wanted to use my United Club pass and the snobbish receptionist said that they don’t take one pass. It took me everything itch of patience not to tell her off

Food choice was poor and we had to buy on board snacks.

We were offer chocolate cookies , not everyone eat chocolate. Thank you

Lost luggage again. Our second trip to Mykonos, and 2nd time no luggage.

Flight was well orchestrated, made up time despite circling a bit all good on United. Travelers can just be so into themselves that common courtesy has gone out window for some, but that’s not on United.

Book cheap flights from Louisville to Washington, D.C.

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Louisville to Washington, D.C. found on KAYAK in the last 72 hours.
7/17Wed
1 stopAmerican Airlines
3h 43mSDF-IAD
$103
6/15Sat
1 stopDelta
4h 28mSDF-IAD
$104
5/31Fri
nonstopUnited Airlines
1h 42mSDF-IAD
$115
6/15Sat
nonstopUnited Airlines
1h 42mSDF-IAD
$125
6/2Sun
1 stopAmerican Airlines
4h 30mSDF-IAD
$133
6/13Thu
1 stopAmerican Airlines
6h 23mSDF-IAD
$143
5/18Sat
1 stopAmerican Airlines
4h 07mSDF-IAD
$144
5/16Thu
1 stopDelta
6h 27mSDF-IAD
$288
10/7Mon
2 stopsQatar Airways
46h 44mSDF-IAD
$1,581
10/19Sat
2 stopsQatar Airways
39h 19mSDF-IAD
$1,631

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Last minute flights from Louisville to Dulles Intl

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Louisville to Washington, D.C. that are departing in the next 10 days.
5/9Thu
nonstopUnited Airlines
1h 40mSDF-IAD
5/12Sun
nonstopUnited Airlines
1h 50mIAD-SDF
$499
5/10Fri
multi-stopUnited Airlines
5h 51mSDF-IAD
5/12Sun
nonstopUnited Airlines
1h 50mIAD-SDF
$508
5/6Mon
multi-stopUnited Airlines
18h 57mSDF-IAD
5/7Tue
nonstopUnited Airlines
1h 56mIAD-SDF
$510
5/10Fri
multi-stopAmerican Airlines
6h 27mSDF-IAD
5/12Sun
multi-stopAmerican Airlines
3h 56mIAD-SDF
$515
5/6Mon
nonstopUnited Airlines
1h 40mSDF-IAD
5/7Tue
nonstopUnited Airlines
1h 50mIAD-SDF
$549
5/6Mon
multi-stopAmerican Airlines
6h 27mSDF-IAD
5/7Tue
multi-stopAmerican Airlines
5h 15mIAD-SDF
$565
5/10Fri
multi-stop
23h 37mSDF-IAD
5/12Sun
multi-stop
25h 04mIAD-SDF
$578
5/9Thu
multi-stopDelta
3h 41mSDF-IAD
5/13Mon
multi-stopDelta
4h 05mIAD-SDF
$612
5/7Tue
multi-stop
17h 47mSDF-IAD
5/8Wed
multi-stop
30h 40mIAD-SDF
$630
5/9Thu
multi-stopDelta
3h 41mSDF-IAD
5/14Tue
multi-stopDelta
3h 42mIAD-SDF
$632

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Search by price

Louisville - Washington Dulles Airport Flights

Departure:

Louisville (SDF)United States

Destination:

Washington Dulles Airport (IAD)United States

Return flight deals:

Washington Dulles Airport - Louisville

Cabin classes:

$1,417
$387
$420
$218