$140 Cheap United flights Madison (MSN) to Washington (IAD)

View $140 flight on Sat, Jan 31, 2026Opens in a new window

$140 Cheap United flights Madison (MSN) to Washington (IAD)

Prices were available within the past 7 days and start at $140 for one-way flights and $309 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sat, Dec 13 - Mon, Dec 15
MSN
Madison
IAD
Washington
$309 Roundtrip, found 2 days ago
$309
Roundtrip
found 2 days ago
Select United flight, departing Sat, Dec 13 from Madison to Washington, returning Mon, Dec 15, priced at $309 found 2 days ago
United
Wed, Feb 25 - Sun, Mar 1
MSN
Madison
IAD
Washington
$323 Roundtrip, found 3 days ago
$323
Roundtrip
found 3 days ago
Select United flight, departing Wed, Feb 25 from Madison to Washington, returning Sun, Mar 1, priced at $323 found 3 days ago
United
Wed, Nov 26 - Tue, Dec 2
MSN
Madison
IAD
Washington
$329 Roundtrip, found 1 day ago
$329
Roundtrip
found 1 day ago
Select United flight, departing Wed, Nov 26 from Madison to Washington, returning Tue, Dec 2, priced at $329 found 1 day ago
United
Fri, Nov 28 - Tue, Dec 2
MSN
Madison
IAD
Washington
$331 Roundtrip, found 6 days ago
$331
Roundtrip
found 6 days ago
Select United flight, departing Fri, Nov 28 from Madison to Washington, returning Tue, Dec 2, priced at $331 found 6 days ago
United
Fri, Dec 5 - Tue, Dec 9
MSN
Madison
IAD
Washington
$333 Roundtrip, found 3 days ago
$333
Roundtrip
found 3 days ago
Select United flight, departing Fri, Dec 5 from Madison to Washington, returning Tue, Dec 9, priced at $333 found 3 days ago
United
Wed, Dec 17 - Sat, Jan 17
MSN
Madison
IAD
Washington
$347 Roundtrip, found 1 day ago
$347
Roundtrip
found 1 day ago
Select United flight, departing Wed, Dec 17 from Madison to Washington, returning Sat, Jan 17, priced at $347 found 1 day ago
Flights from Madison (MSN) to Washington (IAD)
Origin airport
Dane County Regional
Destination airport
Washington Dulles Intl.
Airlines serving
American Airlines, Delta, United
Popular airline
United
Distance
683 mi

Frequently asked questions

How much is a United Airlines flight from Dane County Regional Airport (MSN) to Washington Dulles Intl. Airport (IAD)?
You'll discover affordable round-trip United Airlines flights from $309 from MSN to IAD by filtering your results from "Price (lowest to highest)" on Expedia. Or look for deals from $140 for a one-way trip.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from MSN to IAD with United Airlines?
United Airlines flights to Washington are typically more affordable in the quieter months of January and February. Whether you're after a return or one-way ticket, you could score a better deal then.
What is the cheapest time to book flights from Dane County Regional Airport (MSN) to Washington Dulles Intl. Airport (IAD) with United Airlines?
Search for affordable United Airlines flights from Dane County Regional Airport (MSN) to Washington Dulles Intl. Airport (IAD) one to three months ahead of your departure date. Travelers who book domestic flights 34 to 86 days in advance can save 25% compared to those who book just 6 to 12 days ahead. Regardless of fare type and journey, the ideal day to book a domestic flight is usually Sunday and the most expensive tends to be Monday. Passengers who book on a Sunday can save 6% on average compared to those who book their travel on a Monday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does United Airlines fly nonstop from Dane County Regional Airport (MSN) to Washington Dulles Intl. Airport (IAD)?
To figure out if there's a direct trip from MSN to IAD with United Airlines or other airlines, check the "Nonstop" filter when searching for flights.
What is the earliest United Airlines flight from MSN to IAD?
To find the earliest departures from MSN to IAD with United Airlines, filter your search by "Morning" and "Early Morning." Choosing an early flight generally means you're less likely to experience cancellations.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does United Airlines fly into in Washington?
Washington Dulles Intl. Airport (IAD) is the primary Washington gateway for United Airlines flights from Dane County Regional Airport (MSN).
Why fly with United Airlines from MSN to IAD?
Offering a rewarding loyalty program, United Airlines is a top choice for many passengers heading from MSN to IAD. Plus, if you're a United Mileage Plus and One Key™ member booking through Expedia, you can earn OneKeyCash™* on eligible flights along with your airline miles.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
Can I change or cancel my United Airlines flight from Dane County Regional Airport (MSN) to Washington Dulles Intl. Airport (IAD)?
Depending on the ticket type you purchased, a fee is typically charged if you cancel or change your flight more than 24 hours after it's confirmed. To find plane tickets with more flexibility, select our "No cancel fee" or "Changes included" filter when looking for flights. For more information on canceling or changing your reservation, visit "Trips," select your flight and tick "Manage Booking."

Explore a world of travel with Expedia

*Available to One Key members.