$157 Cheap Delta flights Des Moines (DSM) to Washington (IAD)

View $157 flight on Mon, Dec 22, 2025Opens in a new window

$157 Cheap Delta flights Des Moines (DSM) to Washington (IAD)

Prices were available within the past 7 days and start at $157 for one-way flights and $251 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, Jan 13 - Tue, Jan 20
DSM
Des Moines
IAD
Washington
$251 Roundtrip, found 2 days ago
$251
Roundtrip
found 2 days ago
Select Delta flight, departing Tue, Jan 13 from Des Moines to Washington, returning Tue, Jan 20, priced at $251 found 2 days ago
Delta
Thu, Nov 20 - Tue, Dec 9
DSM
Des Moines
IAD
Washington
$282 Roundtrip, found 3 days ago
$282
Roundtrip
found 3 days ago
Select Delta flight, departing Thu, Nov 20 from Des Moines to Washington, returning Tue, Dec 9, priced at $282 found 3 days ago
Delta
Mon, Jan 19 - Thu, Jan 22
DSM
Des Moines
IAD
Washington
$285 Roundtrip, found 2 days ago
$285
Roundtrip
found 2 days ago
Select Delta flight, departing Mon, Jan 19 from Des Moines to Washington, returning Thu, Jan 22, priced at $285 found 2 days ago
Delta
Thu, Nov 20 - Mon, Dec 8
DSM
Des Moines
IAD
Washington
$299 Roundtrip, found 3 days ago
$299
Roundtrip
found 3 days ago
Select Delta flight, departing Thu, Nov 20 from Des Moines to Washington, returning Mon, Dec 8, priced at $299 found 3 days ago
Delta
Tue, Jan 13 - Fri, Jan 23
DSM
Des Moines
IAD
Washington
$302 Roundtrip, found 2 days ago
$302
Roundtrip
found 2 days ago
Select Delta flight, departing Tue, Jan 13 from Des Moines to Washington, returning Fri, Jan 23, priced at $302 found 2 days ago
Delta
Mon, Jan 12 - Tue, Jan 27
DSM
Des Moines
IAD
Washington
$311 Roundtrip, found 2 days ago
$311
Roundtrip
found 2 days ago
Select Delta flight, departing Mon, Jan 12 from Des Moines to Washington, returning Tue, Jan 27, priced at $311 found 2 days ago
Delta
Mon, Dec 22 - Tue, Dec 30
DSM
Des Moines
IAD
Washington
$313 Roundtrip, found 9 hours ago
$313
Roundtrip
found 9 hours ago
Select Delta flight, departing Mon, Dec 22 from Des Moines to Washington, returning Tue, Dec 30, priced at $313 found 9 hours ago
Delta
Mon, Jan 5 - Tue, Jan 20
DSM
Des Moines
IAD
Washington
$324 Roundtrip, found 2 days ago
$324
Roundtrip
found 2 days ago
Select Delta flight, departing Mon, Jan 5 from Des Moines to Washington, returning Tue, Jan 20, priced at $324 found 2 days ago
Delta
Mon, Jan 12 - Thu, Jan 29
DSM
Des Moines
IAD
Washington
$328 Roundtrip, found 2 days ago
$328
Roundtrip
found 2 days ago
Select Delta flight, departing Mon, Jan 12 from Des Moines to Washington, returning Thu, Jan 29, priced at $328 found 2 days ago
Flights from Des Moines (DSM) to Washington (IAD)
Origin airport
Des Moines Intl.
Destination airport
Washington Dulles Intl.
Airlines serving
American Airlines, Delta, Frontier Airlines, Southwest Airlines, United
Popular airline
United
Distance
871 mi

Frequently asked questions

How much is a Delta Air Lines flight from Des Moines Intl. Airport (DSM) to Washington Dulles Intl. Airport (IAD)?
You'll find cheap round-trip Delta Air Lines flights from $251 from DSM to IAD by filtering your results from "Price (lowest to highest)" on Expedia. Or look for options from $157 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 DSM to IAD with Delta Air Lines?
Search for round-trip or one-way flights to Washington in January or February. You could find cheaper fares with Delta Air Lines during these off-peak travel months.
What is the cheapest time to book flights from Des Moines Intl. Airport (DSM) to Washington Dulles Intl. Airport (IAD) with Delta Air Lines?
Look for affordable Delta Air Lines flights from Des Moines Intl. Airport (DSM) to Washington Dulles Intl. Airport (IAD) one to three months prior to 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. Regardless of fare type and journey, the best day of the week to book a domestic flight is generally Sunday and the most expensive is typically 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 Delta Air Lines fly nonstop from Des Moines Intl. Airport (DSM) to Washington Dulles Intl. Airport (IAD)?
Simply enter your dates, hit search and select the "Nonstop" filter on Expedia to browse any direct flights from DSM to IAD with Delta Air Lines or other carriers.
What is the earliest Delta Air Lines flight from DSM to IAD?
To find the earliest departures from DSM to IAD with Delta Air Lines, sort your results by "Morning" and "Early Morning." Choosing an early flight generally means cancellations are less likely.**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 Delta Air Lines fly into in Washington?
Delta Air Lines flights from Des Moines Intl. Airport (DSM) to Washington come in to Washington Dulles Intl. Airport (IAD). This is the main entry point to this city.
Why fly with Delta Air Lines from DSM to IAD?
Heading from DSM to IAD with Delta Air Lines means enjoying a host of perks, such as a rewarding loyalty program and an excellent in-flight experience. Plus, when booking through Expedia, One Key™ members can earn OneKeyCash™* to use on select future travel purchases. That's on top of the Delta SkyMiles points you can earn with Delta Air Lines.*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 Delta Air Lines flight from Des Moines Intl. Airport (DSM) to Washington Dulles Intl. Airport (IAD)?
You can usually cancel or modify your flight, although there may be additional charges if you made your booking more than 24 hours ago. Prefer to keep your options open? Use Expedia's "No cancel fee" and "Changes included" filters to find flights that won't penalize you if you have to alter your plans. To make changes, head to "Trips," select your flight and click on "Manage Booking" for further information.

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*Available to One Key members.