HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Dulles Intl

$146+ Cheap flights from Des Moines (DSM) to Dulles Intl (IAD)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/23. Fares are subject to change and may not be available on all flights or dates of travel.
DSM — IAD
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Des Moines to Dulles Intl with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Des Moines to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Des Moines (DSM) to Dulles Intl (IAD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 16, 2025.

Round-trip from

$297
(Kiwi.com)

One-way from

$146
(Kiwi.com)

Popular in

August

Cheapest in

December

Average price

$396
From Des Moines to Washington, D.C. Dulles Intl
Search Deals
One-way flight from Des Moines to Washington, D.C. Dulles Intl
Search Deals
High demand for flights, 0% potential price rise
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

Find flight deals from Des Moines to Dulles Intl

Cheapest flights from Des Moines to Dulles Intl
Explore the most affordable flight options available from Des Moines to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/256:50 pmDSM - IAD
2 stops24h 32mMultiple Airlines
Thu 11/69:52 pmIAD - DSM
1 stop11h 38mMultiple Airlines
Deal found 9/14$297
This Delta deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/145:56 pmDSM - IAD
1 stop4h 04mDelta
Sat 10/186:05 amIAD - DSM
1 stop4h 14mDelta
Deal found 9/14$373
This Southwest deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/246:35 amDSM - IAD
1 stop11h 25mSouthwest
Tue 11/47:40 amIAD - DSM
1 stop13h 15mSouthwest
Deal found 9/14$389
This Southwest deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/178:20 amDSM - IAD
1 stop12h 50mSouthwest
Fri 11/211:50 pmIAD - DSM
1 stop8h 10mSouthwest
Deal found 9/15$392
This Delta deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/3110:50 amDSM - IAD
1 stop5h 07mDelta
Mon 11/33:33 pmIAD - DSM
1 stop7h 57mDelta
Deal found 9/15$397
This United Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/278:02 amDSM - IAD
1 stop6h 53mUnited Airlines
Mon 12/16:30 amIAD - DSM
1 stop6h 44mUnited Airlines
Deal found 9/14$416
This Kiwi.com deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/102:39 pmDSM - IAD
2 stops20h 20mMultiple Airlines
Sun 10/1210:08 amIAD - DSM
1 stop11h 16mMultiple Airlines
Deal found 9/14$417
This American Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/711:15 amDSM - IAD
1 stop6h 39mAmerican Airlines
Wed 10/1510:25 amIAD - DSM
1 stop7h 37mAmerican Airlines
Deal found 9/14$418
This Delta deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/132:17 pmDSM - IAD
1 stop6h 15mDelta
Sun 11/166:00 amIAD - DSM
1 stop4h 41mDelta
Deal found 9/15$421

Cheapflights Fare Finder

 
Customize your flight search to find flights from Des Moines to Dulles Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 16, 2025.
Use the filters below to find and compare flights from Des Moines to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Des Moines

Fly to

Dulles Intl

Route

Depart

Return

Price

Des MoinesWashington, D.C.

DSM - IAD

DSMIAD

Des Moines

Wed 11/5

5:32 pm-11:39 pm

1 stop5h 07m

Washington, D.C. Dulles Intl

Sat 11/8

6:05 am-9:19 am

1 stop4h 14m

$373

Des MoinesWashington, D.C.

DSM - IAD

DSMIAD

Des Moines

Sat 12/20

6:46 pm-12:15 am

1 stop4h 29m

Washington, D.C. Dulles Intl

Sat 1/17

5:17 pm-9:50 pm

1 stop5h 33m

$373

Des MoinesWashington, D.C.

DSM - IAD

DSMIAD

Des Moines

Tue 10/14

5:56 pm-11:00 pm

1 stop4h 04m

Washington, D.C. Dulles Intl

Sat 10/18

6:05 am-9:19 am

1 stop4h 14m

$373

Des MoinesWashington, D.C.

DSM - IAD

DSMIAD

Des Moines

Sat 10/25

6:22 pm-11:53 pm

1 stop4h 31m

Washington, D.C. Dulles Intl

Sun 10/26

6:34 am-10:51 am

1 stop5h 17m

$397

Des MoinesWashington, D.C.

DSM - IAD

DSMIAD

Des Moines

Thu 12/18

6:46 pm-12:15 am

1 stop4h 29m

Washington, D.C. Dulles Intl

Sat 1/17

5:17 pm-9:50 pm

1 stop5h 33m

$397

Des MoinesWashington, D.C.

DSM - IAD

DSMIAD

Des Moines

Thu 11/27

1:10 pm-9:32 pm

1 stop7h 22m

Washington, D.C. Dulles Intl

Mon 12/8

3:38 pm-10:33 pm

1 stop7h 55m

$397

Des MoinesWashington, D.C.

DSM - IAD

DSMIAD

Des Moines

Fri 10/31

10:50 am-4:57 pm

1 stop5h 07m

Washington, D.C. Dulles Intl

Mon 11/3

3:33 pm-10:30 pm

1 stop7h 57m

$397

Des MoinesWashington, D.C.

DSM - IAD

DSMIAD

Des Moines

Sat 10/25

5:15 pm-11:18 pm

1 stop5h 03m

Washington, D.C. Dulles Intl

Sun 10/26

6:00 am-10:05 am

1 stop5h 05m

$397

Des MoinesWashington, D.C.

DSM - IAD

DSMIAD

Des Moines

Thu 11/27

8:02 am-3:55 pm

1 stop6h 53m

Washington, D.C. Dulles Intl

Mon 12/1

6:30 am-12:14 pm

1 stop6h 44m

$416

Des MoinesWashington, D.C.

DSM - IAD

DSMIAD

Des Moines

Mon 12/22

5:47 pm-11:08 pm

1 stop4h 21m

Washington, D.C. Dulles Intl

Fri 12/26

6:10 am-11:23 am

1 stop6h 13m

$421

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 20 results
1
2

Best time to book a flight from Des Moines to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Des Moines with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Des Moines to Washington, D.C. Dulles Intl Airport

What is the cheapest month to book a flight from Des Moines to Washington, D.C. Dulles Intl Airport?

Currently, August is the cheapest month in which you can book a flight from Des Moines to Washington, D.C. Dulles Intl Airport (average of $292). Flying from Des Moines to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from DSM to IAD?

Find hourly flight availability from Des Moines to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 16, 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 23% on flights from Des Moines to Washington, D.C. Dulles Intl Airport by exploring options for tickets at noon.

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Dulles Intl. Reviews last updated September 16, 2025.
Read through reviews of airlines operating flights from Des Moines to Washington, D.C. Dulles Intl Airport, such as Delta and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,954 reviews

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,954 reviews
Delta
8.0
Very good
7,954 reviews

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,929 reviews
Delta
8.0
Very good
7,954 reviews

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Des Moines to Dulles Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Des Moines to Washington, D.C. Dulles Intl?

    Most people fly from Des Moines (DSM) if they book a flight from Des Moines to Washington, D.C. Dulles Intl. On average, Des Moines has 0 outbound flights to Washington, D.C. Dulles Intl per day from 2 airlines. Des Moines is conveniently located just 3.6 mi from Des Moines’s city center.

  • How long is the flight from Des Moines to Washington, D.C. Dulles Intl Airport?

    Departing from Des Moines to Washington, D.C. Dulles Intl Airport will take you 4h 29m. The distance from Des Moines to Washington, D.C. Dulles Intl Airport is about 871 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Des Moines to Washington, D.C. Dulles Intl Airport round-trip?

    Cheapflights users have booked flights from Des Moines to Washington, D.C. Dulles Intl Airport round-trip from $198. Another airline that can offer you cheap pricing is United Airlines. Delta is priced at 53% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Des Moines to Washington, D.C. Dulles Intl Airport one-way?

    The cheapest airlines for a one-way flight from Des Moines to Washington, D.C. Dulles Intl Airport are Frontier ($146), Southwest ($216), and United Airlines ($246).

  • Can I find deals for flights from Des Moines to Dulles Intl that include hotel bookings?

    Yes. In addition to deals on Des Moines to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Des Moines to Dulles Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Des Moines to Dulles Intl.

  • Can I find deals for business class flights from Des Moines to Dulles Intl?

    Yes. Cheapflights offers flight deals from Des Moines to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Des Moines to Washington, D.C. Dulles Intl Airport?

    Currently, August is the cheapest month in which you can book a flight from Des Moines to Washington, D.C. Dulles Intl Airport (average of $292). Flying from Des Moines to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Washington, D.C. Dulles Intl Airport?

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Woodbridge
Arlington
Alexandria
Tysons
Silver Spring
Springfield
Gaithersburg
Fredericksburg
Linthicum Heights
Fairfax
Falls Church
Owings Mills
Manassas
Rockville
Hanover
Oxon Hill
Laurel
Towson
National Harbor
Dundalk

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Des Moines to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.
Omaha to Reagan-National flights
Des Moines to Reagan-National flights
Omaha to Dulles Intl flights
Omaha to Baltimore flights
Cedar Rapids to Reagan-National flights
Cedar Rapids to Dulles Intl flights
Cedar Rapids to Baltimore flights
Des Moines to Baltimore flights
Moline to Reagan-National flights
Moline to Dulles Intl flights
Moline to Baltimore flights
Sioux City to Reagan-National flights
Dubuque to Reagan-National flights
La Crosse to Reagan-National flights
Sioux City to Baltimore flights
La Crosse to Baltimore flights
Sioux City to Dulles Intl flights
Dubuque to Baltimore flights
Waterloo to Dulles Intl flights
Waterloo to Baltimore flights
Waterloo to Reagan-National flights
La Crosse to Dulles Intl flights

Top 2 airlines flying from Des Moines to Dulles Intl

Discover the top 2 airlines that operate flights from Des Moines to Dulles Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$198Average$392FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$329Average$449FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.