$296 Cheap Flights from La Crosse (LSE) to Washington (IAD)

View $296 flight on Sat, Dec 6, 2025Opens in a new window

Popular airlines from La Crosse, WI (LSE-La Crosse Municipal) to Washington Dulles Intl. Airport (IAD)

Cheap Flights from La Crosse to Washington (LSE-IAD)

Prices were available within the past 7 days and start at $296 for one-way flights and $519 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Wed, Nov 19 - Tue, Nov 25
LSE
La Crosse
IAD
Washington
$519 Roundtrip, found 2 days ago
$519
Roundtrip
found 2 days ago
Select American Airlines flight, departing Wed, Nov 19 from La Crosse to Washington, returning Tue, Nov 25, priced at $519 found 2 days ago
American Airlines
Fri, Oct 31 - Tue, Nov 4
LSE
La Crosse
IAD
Washington
$526 Roundtrip, found 2 days ago
$526
Roundtrip
found 2 days ago
Select American Airlines flight, departing Fri, Oct 31 from La Crosse to Washington, returning Tue, Nov 4, priced at $526 found 2 days ago
American Airlines
Tue, Mar 31 - Wed, Apr 8
LSE
La Crosse
IAD
Washington
$531 Roundtrip, found 19 hours ago
$531
Roundtrip
found 19 hours ago
Select American Airlines flight, departing Tue, Mar 31 from La Crosse to Washington, returning Wed, Apr 8, priced at $531 found 19 hours ago
American Airlines
Tue, Mar 31 - Tue, Apr 7
LSE
La Crosse
IAD
Washington
$543 Roundtrip, found 19 hours ago
$543
Roundtrip
found 19 hours ago
Select American Airlines flight, departing Tue, Mar 31 from La Crosse to Washington, returning Tue, Apr 7, priced at $543 found 19 hours ago
American Airlines
Wed, Nov 19 - Wed, Nov 26
LSE
La Crosse
IAD
Washington
$544 Roundtrip, found 2 days ago
$544
Roundtrip
found 2 days ago
Select American Airlines flight, departing Wed, Nov 19 from La Crosse to Washington, returning Wed, Nov 26, priced at $544 found 2 days ago
American Airlines
Tue, Nov 18 - Wed, Nov 26
LSE
La Crosse
IAD
Washington
$551 Roundtrip, found 2 days ago
$551
Roundtrip
found 2 days ago
Select American Airlines flight, departing Tue, Nov 18 from La Crosse to Washington, returning Wed, Nov 26, priced at $551 found 2 days ago
American Airlines
Thu, Nov 20 - Tue, Nov 25
LSE
La Crosse
IAD
Washington
$552 Roundtrip, found 2 days ago
$552
Roundtrip
found 2 days ago
Select American Airlines flight, departing Thu, Nov 20 from La Crosse to Washington, returning Tue, Nov 25, priced at $552 found 2 days ago
American Airlines
Wed, Apr 1 - Wed, Apr 8
LSE
La Crosse
IAD
Washington
$557 Roundtrip, found 19 hours ago
$557
Roundtrip
found 19 hours ago
Select American Airlines flight, departing Wed, Apr 1 from La Crosse to Washington, returning Wed, Apr 8, priced at $557 found 19 hours ago
American Airlines
Tue, Nov 18 - Sun, Nov 23
LSE
La Crosse
IAD
Washington
$559 Roundtrip, found 2 days ago
$559
Roundtrip
found 2 days ago
Select American Airlines flight, departing Tue, Nov 18 from La Crosse to Washington, returning Sun, Nov 23, priced at $559 found 2 days ago
American Airlines
Wed, Apr 1 - Tue, Apr 7
LSE
La Crosse
IAD
Washington
$569 Roundtrip, found 19 hours ago
$569
Roundtrip
found 19 hours ago
Select American Airlines flight, departing Wed, Apr 1 from La Crosse to Washington, returning Tue, Apr 7, priced at $569 found 19 hours ago

Alternative airports near Washington

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Ronald Reagan Washington National DCA. Cheapest and Closest option available. Average driving time to city center is 8 minutes. Flights from $558
DCA
Ronald Reagan Washington National
CheapestClosest
Average driving time to city center8 min
Flights from $558

Frequently asked questions

How much does a flight from La Crosse Municipal Airport (LSE) to Washington Dulles Intl. Airport (IAD) cost?
Snag a cheap one-way flight from $296 or cheap return flight from $519 from La Crosse Municipal Airport (LSE) to Washington Dulles Intl. Airport (IAD) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from La Crosse Municipal Airport (LSE) to Washington Dulles Intl. Airport (IAD)?
Flying in November is a great way to save, as it's the cheapest month for flights between LSE and IAD. You'll usually find the lowest fares during off-peak months.
What is the cheapest airline that flies from La Crosse Municipal Airport (LSE) to Washington Dulles Intl. Airport (IAD)?
Expedia's filter tool lets you easily compare different airlines, travel time and fares all in one place. Select your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest LSE to IAD flight.
How many flights per day from La Crosse Municipal Airport (LSE) to Washington Dulles Intl. Airport (IAD)?
Nonstop flights from La Crosse Municipal Airport (LSE) to Washington Dulles Intl. Airport (IAD) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your travel dates and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from LSE to IAD?
Friday is generally the busiest day for flights, while Tuesday tends to be the quietest.* Remember that flight schedules can vary depending on a number of factors, such as the time of year and carrier.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from La Crosse Municipal Airport (LSE) to Washington Dulles Intl. Airport (IAD)?
To avoid possible delays on the La Crosse Municipal Airport (LSE) to Washington Dulles Intl. Airport (IAD) route, aim to fly before 3 PM. Later departures have a 22% higher chance of cancellation.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from La Crosse Municipal Airport (LSE) to Washington Dulles Intl. Airport (IAD) last-minute?
Last-minute fares from LSE to IAD are usually more expensive. To secure the best rates, start searching for flights early. That said, if your travel plans are flexible, it's possible to find a cheap ticket right before your journey.
Is it cheaper to book a LSE to IAD flight and hotel package?
Securing a LSE to IAD flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip all in one place. Select from our wide range of hotels and then add flights, car rentals and activities to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from La Crosse Municipal Airport (LSE) to Washington Dulles Intl. Airport (IAD)?
If you reserved your LSE to IAD flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the fare type you purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal if you want more information.

Travel information

Origin airport
La Crosse Municipal
Destination airport
Washington Dulles Intl.
Airlines serving
American Airlines
Roundtrip price
$518
Distance
791 mi

Book with confidence

La Crosse to Washington Flights

The cheapest times to fly from La Crosse to Washington

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from La Crosse to Washington are during the month of November. You can find some of the cheapest flights from La Crosse to Washington with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from La Crosse to Washington

Sunday is one of the best days to book for cheap flights from La Crosse to Washington: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from La Crosse to Washington

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from La Crosse to Washington in 2025. You can also book with separate airlines for your outbound and return journeys, from $296 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap La Crosse to Washington flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your La Crosse to Washington airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

La Crosse to Washington Flights

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*Available to One Key members.