$119 Cheap United flights Kansas City (MCI) to Washington (IAD)

View $119 flight on Wed, Oct 15, 2025Opens in a new window

$119 Cheap United flights Kansas City (MCI) to Washington (IAD)

Prices were available within the past 7 days and start at $119 for one-way flights and $237 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Wed, Oct 15 - Tue, Oct 21
MCI
Kansas City
IAD
Washington
$237 Roundtrip, found 18 hours ago
$237
Roundtrip
found 18 hours ago
Select United flight, departing Wed, Oct 15 from Kansas City to Washington, returning Tue, Oct 21, priced at $237 found 18 hours ago
United
Sat, Oct 18 - Mon, Oct 20
MCI
Kansas City
IAD
Washington
$241 Roundtrip, found 4 days ago
$241
Roundtrip
found 4 days ago
Select United flight, departing Sat, Oct 18 from Kansas City to Washington, returning Mon, Oct 20, priced at $241 found 4 days ago
United
Sat, Oct 18 - Mon, Oct 20
MCI
Kansas City
IAD
Washington
$246 Roundtrip, found 4 days ago
$246
Roundtrip
found 4 days ago
Select United flight, departing Sat, Oct 18 from Kansas City to Washington, returning Mon, Oct 20, priced at $246 found 4 days ago
United
Wed, Oct 15 - Tue, Oct 21
MCI
Kansas City
IAD
Washington
$247 Roundtrip, found 18 hours ago
$247
Roundtrip
found 18 hours ago
Select United flight, departing Wed, Oct 15 from Kansas City to Washington, returning Tue, Oct 21, priced at $247 found 18 hours ago
United
Tue, Sep 16 - Wed, Sep 24
MCI
Kansas City
IAD
Washington
$251 Roundtrip, found 1 day ago
$251
Roundtrip
found 1 day ago
Select United flight, departing Tue, Sep 16 from Kansas City to Washington, returning Wed, Sep 24, priced at $251 found 1 day ago
United
Tue, Sep 16 - Sun, Sep 21
MCI
Kansas City
IAD
Washington
$253 Roundtrip, found 1 day ago
$253
Roundtrip
found 1 day ago
Select United flight, departing Tue, Sep 16 from Kansas City to Washington, returning Sun, Sep 21, priced at $253 found 1 day ago
Flights from Kansas City (MCI) to Washington (IAD)
Origin airport
Kansas City Intl.
Destination airport
Washington Dulles Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Southwest Airlines, United
Popular airline
United
Distance
924 mi
Average flight time
3 hours 36 mins

Frequently asked questions

How much is a United Airlines flight from Kansas City Intl. Airport (MCI) to Washington Dulles Intl. Airport (IAD)?
Make use of the "Price (lowest to highest)" filter on Expedia to look for cheap United Airlines return flights from $237 from MCI to IAD. Affordable one-way fares from $119 are also available.**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 MCI to IAD with United Airlines?
January is one of the least expensive months to jet away to Washington with United Airlines. You could also find great deals on return and one-way tickets in February.
What is the cheapest time to book flights from Kansas City Intl. Airport (MCI) to Washington Dulles Intl. Airport (IAD) with United Airlines?
Look for cheap United Airlines flights from Kansas City Intl. Airport (MCI) to Washington Dulles Intl. Airport (IAD) one to three months before your departure. 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. No matter the fare type and journey, the ideal day to book a domestic flight is generally 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 Kansas City Intl. Airport (MCI) to Washington Dulles Intl. Airport (IAD)?
Yes, you can fly from Kansas City Intl. Airport (MCI) to Washington Dulles Intl. Airport (IAD) on one of United Airlines's 11 direct weekly flights. Make use of our "Nonstop" and "Airline" filters to find the United Airlines flight that'll land at IAD at your preferred time.
How long does it take to fly from MCI to IAD with United Airlines?
Leave Kansas City Intl. Airport (MCI) for Washington Dulles Intl. Airport (IAD) on a direct United Airlines flight, and you'll be in the skies for approximately 2h 29m.
Which day of the week has the most United Airlines flights from Kansas City Intl. Airport (MCI) to Washington Dulles Intl. Airport (IAD)?
United Airlines has the most flights from Kansas City Intl. Airport (MCI) to Washington Dulles Intl. Airport (IAD) on Saturday. With up to 2 daily departures, you'll get the most flexibility on this day.
What is the earliest United Airlines flight from MCI to IAD?
The earliest flight from MCI to IAD with United Airlines leaves at 8:00AM UTC-6. You'll touch down at 11:28AM UTC-5. The final United Airlines flight of the day leaves at 12:45PM UTC-6 and arrives at 4:15PM UTC-5. With 20% fewer cancellations for morning and mid-morning departures, heading out early is usually the best way to go.**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 main Washington hub for United Airlines flights from Kansas City Intl. Airport (MCI). Ronald Reagan Washington National Airport (DCA) and Baltimore Washington Intl. Thurgood Marshall Airport (BWI) are alternative options. When planning your vacation through Expedia, choose the "All Airports" option for your destination to see exactly what's available.
Why fly with United Airlines from MCI to IAD?
With a rewarding loyalty program, United Airlines is a top choice for many passengers flying from MCI to IAD. Plus, as a United Mileage Plus and One Key™ member booking through Expedia, you could 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.
What type of plane does United Airlines fly from Kansas City Intl. Airport (MCI) to Washington Dulles Intl. Airport (IAD)?
Set off on a United Airlines flight from Kansas City Intl. Airport (MCI) to Washington Dulles Intl. Airport (IAD), and you'll probably board an Embraer 175. Bear in mind though, that the aircraft type can vary depending on operational needs.
Can I change or cancel my United Airlines flight from Kansas City Intl. Airport (MCI) to Washington Dulles Intl. Airport (IAD)?
Changes are usually free within 24 hours of making your booking, but your airline may add a charge after that time. For further information about altering your reservation, go to your "Trips," select your flight and click on "Manage Booking." If you'd like the freedom to change your itinerary without additional costs, check the "Changes included" or "No cancel fee" filter when planning your next adventure.

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*Available to One Key members.