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

The cheapest airlines for a one-way flight from Iowa to Washington, D.C. Dulles Intl Airport are Allegiant Air ($93), Southwest ($118), and Frontier ($125).

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 2.6 in.

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

What are the most popular routes from Iowa to Washington, D.C. Dulles Intl Airport?

The most popular flight routes from Iowa to Washington, D.C. Dulles Intl Airport are Des Moines - Washington, D.C. Dulles Intl, Omaha Eppley Airfield - Washington, D.C. Dulles Intl and Cedar Rapids - Washington, D.C. Dulles Intl.

What are the most popular airlines that fly from Iowa to Washington, D.C. Dulles Intl Airport?

When booking a flight from Iowa to Washington, D.C. Dulles Intl Airport, you may want to consider flying on American Airlines, Delta or United Airlines as they are the most popular for this route.

What is the cheapest month to fly from Iowa to Washington, D.C. Dulles Intl Airport?

Due to multiple factors, expect to potentially pay more when booking in January. For low rates, September can be a great choice for travel to Washington, D.C. Dulles Intl Airport. Flights to Washington, D.C. Dulles Intl Airport from Iowa in September are about $389 on average during September, but can be found for as low as $158.

Can I find deals for flights from Iowa to Dulles Intl that include hotel bookings?

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

How can I find direct flights from Iowa to Dulles Intl?

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

Can I find deals for business class flights from Iowa to Dulles Intl?

Yes. Cheapflights offers flight deals from Iowa 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.

$93+ Flights from Iowa to Washington, D.C. Dulles Intl Airport

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Cheap flight deals from Iowa to Dulles Intl

Round-trip from	$236 (Southwest)
One-way from	$93 (Mytrip)
Popular in	January
Cheapest in	September
Average price	$424

From Iowa to Washington, D.C. Dulles Intl

Search Deals

One-way flight from Iowa to Washington, D.C. Dulles Intl

Search Deals

Highest demand for flights based on searches. 2% potential increase in price ($11 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).

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Average for round-trip flights in July 2025

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Find flight deals from Iowa to Dulles Intl

Cheapest flights from Iowa to Dulles Intl
Explore the most affordable flight options available from Iowa to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2025.

Thu 8/711:10 amOMA - IAD

1 stop24h 32mFrontier

Sat 8/161:37 pmIAD - OMA

1 stop21h 39mFrontier

Deal found 7/29

$229

Sat 9/66:10 amDSM - IAD

1 stop7h 50mSouthwest

Tue 9/92:25 pmIAD - DSM

1 stop8h 00mSouthwest

Deal found 7/28

$236

Tue 10/215:04 pmMLI - IAD

1 stop5h 14mDelta

Sat 10/255:52 pmIAD - MLI

1 stop5h 28mDelta

Deal found 7/28

$249

Thu 8/144:21 pmMLI - IAD

1 stop6h 38mAmerican Airlines

Mon 8/187:25 pmIAD - MLI

1 stop4h 36mAmerican Airlines

Deal found 7/30

$259

Fri 10/246:30 amMLI - IAD

1 stop4h 25mUnited Airlines

Sun 10/266:30 amIAD - MLI

1 stop6h 20mUnited Airlines

Deal found 7/27

$266

Sat 9/203:46 pmOMA - IAD

1 stop6h 02mAmerican Airlines

Sat 9/277:17 pmIAD - OMA

1 stop4h 55mAmerican Airlines

Deal found 7/30

$297

Sat 9/138:00 amOMA - IAD

1 stop6h 52mUnited Airlines

Thu 9/186:35 amIAD - OMA

1 stop4h 49mUnited Airlines

Deal found 7/29

$311

Fri 8/158:35 amDSM - IAD

3 stops11h 34mMultiple Airlines

Sun 8/1711:04 amIAD - DSM

1 stop13h 23mMultiple Airlines

Deal found 7/29

$352

Mon 8/254:12 pmOMA - IAD

1 stop6h 09mDelta

Tue 8/266:00 amIAD - OMA

1 stop5h 38mDelta

Deal found 7/29

$363

Sat 9/205:57 amCID - IAD

1 stop6h 56mDelta

Tue 9/236:15 amIAD - CID

1 stop6h 15mDelta

Deal found 7/28

$363

Sat 9/138:00 amDSM - IAD

1 stop4h 49mAmerican Airlines

Sat 9/207:17 pmIAD - DSM

1 stop4h 49mAmerican Airlines

Deal found 7/29

$371

Sat 10/48:00 amDSM - IAD

1 stop4h 51mUnited Airlines

Tue 10/71:20 pmIAD - DSM

1 stop5h 04mUnited Airlines

Deal found 7/30

$373

Best flights from Iowa to Dulles Intl
Discover carefully curated flight deals from Iowa to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 30, 2025.

Sat 9/66:10 amDSM - IAD

1 stop7h 50mSouthwest

Tue 9/92:25 pmIAD - DSM

1 stop8h 00mSouthwest

Deal found 7/28

$236

Mon 10/2011:51 amOMA - IAD

1 stop11h 15mFrontier

Fri 10/246:00 amIAD - OMA

1 stop5h 56mFrontier

Deal found 7/28

$238

Tue 10/215:04 pmMLI - IAD

1 stop5h 14mDelta

Sat 10/255:52 pmIAD - MLI

1 stop5h 28mDelta

Deal found 7/28

$249

Thu 8/144:21 pmMLI - IAD

1 stop6h 38mAmerican Airlines

Mon 8/187:25 pmIAD - MLI

1 stop4h 36mAmerican Airlines

Deal found 7/30

$259

Fri 10/246:30 amMLI - IAD

1 stop4h 25mUnited Airlines

Sun 10/266:30 amIAD - MLI

1 stop6h 20mUnited Airlines

Deal found 7/27

$266

Fri 8/158:35 amDSM - IAD

3 stops11h 34mMultiple Airlines

Sun 8/1711:04 amIAD - DSM

1 stop13h 23mMultiple Airlines

Deal found 7/29

$352

Sun 8/1711:38 amDSM - IAD

2 stops23h 54mAllegiant Air

Thu 8/217:10 pmIAD - DSM

2 stops26h 31mAllegiant Air

Deal found 7/29

$395

Sat 9/203:46 pmOMA - IAD

1 stop6h 02mAmerican Airlines

Sat 9/277:17 pmIAD - OMA

1 stop4h 55mAmerican Airlines

Deal found 7/30

$297

Sat 9/138:00 amOMA - IAD

1 stop6h 52mUnited Airlines

Thu 9/186:35 amIAD - OMA

1 stop4h 49mUnited Airlines

Deal found 7/29

$311

Mon 8/254:12 pmOMA - IAD

1 stop6h 09mDelta

Tue 8/266:00 amIAD - OMA

1 stop5h 38mDelta

Deal found 7/29

$363

Sat 9/205:57 amCID - IAD

1 stop6h 56mDelta

Tue 9/236:15 amIAD - CID

1 stop6h 15mDelta

Deal found 7/28

$363

Sat 9/138:00 amDSM - IAD

1 stop4h 49mAmerican Airlines

Sat 9/207:17 pmIAD - DSM

1 stop4h 49mAmerican Airlines

Deal found 7/29

$371

Last-minute flights from Iowa to Dulles Intl
Discover last-minute flight deals from Iowa to Dulles Intl. Data last updated July 30, 2025 and is based on user searches.

Tue 8/511:24 amDSM - IAD

1 stop7h 56mDelta

Sat 8/95:46 pmIAD - DSM

1 stop5h 47mDelta

Deal found 7/28

$463

Wed 8/66:00 amCID - IAD

1 stop7h 42mDelta

Wed 8/136:15 amIAD - CID

1 stop6h 13mDelta

Deal found 7/30

$483

Wed 8/65:26 pmCID - IAD

1 stop6h 04mUnited Airlines

Wed 8/133:39 pmIAD - CID

1 stop6h 42mUnited Airlines

Deal found 7/30

$542

Thu 8/711:10 amOMA - IAD

1 stop24h 32mFrontier

Sat 8/161:37 pmIAD - OMA

1 stop21h 39mFrontier

Deal found 7/29

$229

Thu 8/75:20 pmMLI - IAD

1 stop6h 10mUnited Airlines

Sun 8/106:35 amIAD - MLI

1 stop4h 47mUnited Airlines

Deal found 7/30

$429

Thu 8/75:26 pmMLI - IAD

1 stop6h 08mDelta

Mon 8/115:25 pmIAD - MLI

1 stop6h 23mDelta

Deal found 7/30

$484

Thu 8/76:50 pmDSM - IAD

2 stops15h 48mUnited Airlines

Sun 8/105:13 pmIAD - DSM

1 stop5h 34mUnited Airlines

Deal found 7/27

$569

Fri 8/84:21 pmMLI - IAD

1 stop5h 35mAmerican Airlines

Mon 8/117:25 pmIAD - MLI

1 stop4h 36mAmerican Airlines

Deal found 7/30

$354

Fri 8/87:03 amCID - IAD

1 stop7h 16mAmerican Airlines

Wed 8/137:25 pmIAD - CID

1 stop4h 33mAmerican Airlines

Deal found 7/28

$556

Sat 8/94:13 pmOMA - IAD

1 stop15h 22mMultiple Airlines

Sun 8/1711:04 amIAD - OMA

3 stops26h 42mMultiple Airlines

Deal found 7/29

$484

Sat 8/94:23 pmDSM - IAD

1 stop6h 34mAmerican Airlines

Sun 8/176:34 amIAD - DSM

1 stop5h 19mAmerican Airlines

Deal found 7/29

$494

Sat 8/911:28 amOMA - IAD

1 stop5h 02mUnited Airlines

Wed 8/206:35 amIAD - OMA

1 stop6h 48mUnited Airlines

Deal found 7/30

$594

One-way flights from Iowa to Dulles Intl
Search for one-way flight options from Iowa to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated July 30, 2025.

Sun 12/75:25 pmOMA - IAD

1 stop14h 16mAllegiant Air

Deal found 7/29

$93

Tue 9/236:30 amDSM - IAD

1 stop6h 10mSouthwest

Deal found 7/29

$118

Fri 10/1711:51 amOMA - IAD

1 stop11h 15mFrontier

Deal found 7/28

$125

Sat 10/44:59 pmMLI - IAD

1 stop5h 18mDelta

Deal found 7/28

$126

Sat 10/46:30 amMLI - IAD

2 stops11h 17mAmerican Airlines

Deal found 7/28

$131

Wed 12/38:00 amOMA - IAD

1 stop7h 00mUnited Airlines

Deal found 7/29

$144

Fri 8/298:59 pmDSM - IAD

1 stop15h 05mAllegiant Air

Deal found 7/28

$145

Sat 9/276:04 amOMA - IAD

1 stop6h 45mAmerican Airlines

Deal found 7/29

$148

Tue 1/68:00 amOMA - IAD

1 stop7h 36mDelta

Deal found 7/28

$179

Sun 10/191:51 pmDSM - IAD

3 stops20h 32mMultiple Airlines

Deal found 7/29

$179

Mon 12/811:08 amOMA - IAD

3 stops23h 15mMultiple Airlines

Deal found 7/28

$208

Sun 9/146:00 amOMA - IAD

1 stop8h 20mSouthwest

Deal found 7/29

$224

Cheapflights Fare Finder

Use the filters below to find and compare flights from Iowa to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Des MoinesWashington, D.C.

DSM - IAD

DSMIAD

Des Moines

Sat 9/6

6:10 am-3:00 pm

1 stop7h 50m

Washington, D.C. Dulles Intl

Tue 9/9

2:25 pm-9:25 pm

1 stop8h 00m

$236

OmahaWashington, D.C.

OMA - IAD

OMAIAD

Omaha Eppley Airfield

Mon 10/20

11:51 am-12:06 am

1 stop11h 15m

Washington, D.C. Dulles Intl

Fri 10/24

6:00 am-10:56 am

1 stop5h 56m

$238

MolineWashington, D.C.

MLI - IAD

MLIIAD

Moline Quad-City

Tue 10/21

5:04 pm-11:18 pm

1 stop5h 14m

Washington, D.C. Dulles Intl

Sat 10/25

5:52 pm-10:20 pm

1 stop5h 28m

$249

MolineWashington, D.C.

MLI - IAD

MLIIAD

Moline Quad-City

Thu 8/14

4:21 pm-11:59 pm

1 stop6h 38m

Washington, D.C. Dulles Intl

Mon 8/18

7:25 pm-11:01 pm

1 stop4h 36m

$259

MolineWashington, D.C.

MLI - IAD

MLIIAD

Moline Quad-City

Fri 10/24

6:30 am-11:55 am

1 stop4h 25m

Washington, D.C. Dulles Intl

Sun 10/26

6:30 am-11:50 am

1 stop6h 20m

$266

OmahaWashington, D.C.

OMA - IAD

OMAIAD

Omaha Eppley Airfield

Sat 9/20

3:46 pm-10:48 pm

1 stop6h 02m

Washington, D.C. Dulles Intl

Sat 9/27

7:17 pm-11:12 pm

1 stop4h 55m

$297

OmahaWashington, D.C.

OMA - IAD

OMAIAD

Omaha Eppley Airfield

Sat 9/13

8:00 am-3:52 pm

1 stop6h 52m

Washington, D.C. Dulles Intl

Thu 9/18

6:35 am-10:24 am

1 stop4h 49m

$311

Des MoinesWashington, D.C.

DSM - IAD

DSMIAD

Des Moines

Fri 8/15

8:35 am-9:09 pm

3 stops11h 34m

Washington, D.C. Dulles Intl

Sun 8/17

11:04 am-11:27 pm

1 stop13h 23m

$352

OmahaWashington, D.C.

OMA - IAD

OMAIAD

Omaha Eppley Airfield

Mon 8/25

4:12 pm-11:21 pm

1 stop6h 09m

Washington, D.C. Dulles Intl

Tue 8/26

6:00 am-10:38 am

1 stop5h 38m

$363

Cedar RapidsWashington, D.C.

CID - IAD

CIDIAD

Cedar Rapids

Sat 9/20

5:57 am-1:53 pm

1 stop6h 56m

Washington, D.C. Dulles Intl

Tue 9/23

6:15 am-11:30 am

1 stop6h 15m

$363

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Showing 1-10 of 40 results

Best time to book a flight from Iowa to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Iowa 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 Iowa to Washington, D.C. Dulles Intl Airport

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

Currently, July is the cheapest month in which you can book a flight from Iowa to Washington, D.C. Dulles Intl Airport (average of $306). Flying from Iowa 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 IA to IAD?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Iowa to Washington, D.C. Dulles Intl Airport as you normally would.

Reviews of airlines servicing Dulles Intl

See what other customers who have flown with Southwest, Delta, and United Airlines from Iowa to Washington, D.C. Dulles Intl Airport have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Southwest

8.0

Very good

4,241 reviews

Reviews

1 / 20

8.0

Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.

Southwest

8.0

Very good

4,241 reviews

Southwest

8.0

Very good

4,241 reviews

Reviews

1 / 20

8.0

Excellent

Gina,Jul 2025

LAS - DEN

Delta

8.0

Very good

7,980 reviews

Southwest

8.0

Very good

4,241 reviews

Reviews

1 / 20

8.0

Excellent

Gina,Jul 2025

LAS - DEN

United Airlines

7.4

Good

8,896 reviews

Southwest

8.0

Very good

4,241 reviews

Reviews

1 / 20

8.0

Excellent

Gina,Jul 2025

LAS - DEN

American Airlines

7.2

Good

10,000 reviews

Southwest

8.0

Very good

4,241 reviews

Reviews

1 / 20

8.0

Excellent

Gina,Jul 2025

LAS - DEN

Allegiant Air

7.2

Good

703 reviews

Southwest

8.0

Very good

4,241 reviews

Reviews

1 / 20

8.0

Excellent

Gina,Jul 2025

LAS - DEN

Related info for your journey

What are the cheapest airlines to fly from Iowa to Washington, D.C. Dulles Intl Airport one-way?
The cheapest airlines for a one-way flight from Iowa to Washington, D.C. Dulles Intl Airport are Allegiant Air ($93), Southwest ($118), and Frontier ($125).
What are the most popular routes from Iowa to Washington, D.C. Dulles Intl Airport?
The most popular flight routes from Iowa to Washington, D.C. Dulles Intl Airport are Des Moines - Washington, D.C. Dulles Intl, Omaha Eppley Airfield - Washington, D.C. Dulles Intl and Cedar Rapids - Washington, D.C. Dulles Intl.
Can I find deals for flights from Iowa to Dulles Intl that include hotel bookings?
Yes. In addition to deals on Iowa to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Iowa to Dulles Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Iowa to Dulles Intl.
Can I find deals for business class flights from Iowa to Dulles Intl?
Yes. Cheapflights offers flight deals from Iowa 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 Iowa to Washington, D.C. Dulles Intl Airport?
Currently, July is the cheapest month in which you can book a flight from Iowa to Washington, D.C. Dulles Intl Airport (average of $306). Flying from Iowa 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

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Fredericksburg

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Rockville

Oxon Hill

National Harbor

Dundalk

Bowie

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Top 3 airlines flying from Iowa to Dulles Intl

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$262	Average$439	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$262	Average$478	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$329	Average$456	FlexibilityNo cancel fee	On-time69%

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$93+ Cheap flights from Iowa 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 12/7. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Iowa to Dulles Intl with Cheapflights

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3. Compare prices and book

Cheap flight deals from Iowa to Dulles Intl

Keep the following information in mind while searching for Iowa to Dulles Intl flight deals. Data was last updated July 30, 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Iowa to Dulles Intl

Cheapest flights from Iowa to Dulles IntlExplore the most affordable flight options available from Iowa to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2025.

Explore the most affordable flight options available from Iowa to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Iowa to Washington, D.C. Dulles Intl Airport that are best for you.

Best time to book a flight from Iowa to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Iowa with our price prediction graph.

Cheapflights Insights

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

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

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

Find hourly flight availability from Iowa 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 July 30, 2025.

Reviews of airlines servicing Dulles Intl

Related info for your journey

Find useful and relevant information for your journey from Iowa 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 are the cheapest airlines to fly from Iowa to Washington, D.C. Dulles Intl Airport one-way?

What are the most popular routes from Iowa to Washington, D.C. Dulles Intl Airport?

Can I find deals for flights from Iowa to Dulles Intl that include hotel bookings?

How can I find direct flights from Iowa to Dulles Intl?

Can I find deals for business class flights from Iowa to Dulles Intl?

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

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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Iowa to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.

Top 3 airlines flying from Iowa to Dulles Intl

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Cheapest flights from Iowa to Dulles Intl
Explore the most affordable flight options available from Iowa to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2025.