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Cheap Flights from Des Moines (DSM) to Washington D.C. (IAD)

Compare Des Moines to Washington Dulles flight deals

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Flight deals from Des Moines to Washington Dulles

Looking for a cheap last-minute deal or the best return flight from Des Moines Airport to Washington Dulles Airport? If you want to travel next month, return fares start from $458. Find the lowest prices on one-way and return tickets right here.
Washington D.C..$388 per passenger.Departing Tue, 11 Aug, returning Tue, 18 Aug.Return flight with Delta.Outbound indirect flight with Delta, departs from Des Moines on Tue, 11 Aug, arriving in Washington Dulles.Inbound indirect flight with Delta, departs from Washington Dulles on Tue, 18 Aug, arriving in Des Moines.Price includes taxes and charges.From $388, select.
Washington D.C..$458 per passenger.Departing Wed, 22 Jul, returning Sat, 25 Jul.Return flight with United.Outbound indirect flight with United, departs from Des Moines on Wed, 22 Jul, arriving in Washington Dulles.Inbound indirect flight with United, departs from Washington Dulles on Sat, 25 Jul, arriving in Des Moines.Price includes taxes and charges.From $458, select.
Washington D.C..$459 per passenger.Departing Wed, 4 Nov, returning Sat, 7 Nov.Return flight with Delta.Outbound indirect flight with Delta, departs from Des Moines on Wed, 4 Nov, arriving in Washington Dulles.Inbound indirect flight with Delta, departs from Washington Dulles on Sat, 7 Nov, arriving in Des Moines.Price includes taxes and charges.From $459, select.
Washington D.C..$481 per passenger.Departing Tue, 8 Sep, returning Mon, 28 Sep.Return flight with Delta.Outbound indirect flight with Delta, departs from Des Moines on Tue, 8 Sep, arriving in Washington Dulles.Inbound indirect flight with Delta, departs from Washington Dulles on Mon, 28 Sep, arriving in Des Moines.Price includes taxes and charges.From $481, select.
Washington D.C..$568 per passenger.Departing Sun, 13 Sep, returning Sat, 17 Oct.Return flight with Delta.Outbound indirect flight with Delta, departs from Des Moines on Sun, 13 Sep, arriving in Washington Dulles.Inbound indirect flight with Delta, departs from Washington Dulles on Sat, 17 Oct, arriving in Des Moines.Price includes taxes and charges.From $568, select.
Washington D.C..$595 per passenger.Departing Thu, 23 Jul, returning Sat, 1 Aug.Return flight with Allegiant Air.Outbound indirect flight with Allegiant Air, departs from Des Moines on Thu, 23 Jul, arriving in Washington Dulles.Inbound indirect flight with Allegiant Air, departs from Washington Dulles on Sat, 1 Aug, arriving in Des Moines.Price includes taxes and charges.From $595, select.
Washington D.C..$617 per passenger.Departing Sat, 5 Dec, returning Thu, 10 Dec.Return flight with Delta.Outbound indirect flight with Delta, departs from Des Moines on Sat, 5 Dec, arriving in Washington Dulles.Inbound indirect flight with Delta, departs from Washington Dulles on Thu, 10 Dec, arriving in Des Moines.Price includes taxes and charges.From $617, select.
Washington D.C..$678 per passenger.Departing Thu, 1 Apr, returning Mon, 5 Apr.Return flight with United.Outbound indirect flight with United, departs from Des Moines on Thu, 1 Apr, arriving in Washington Dulles.Inbound indirect flight with United, departs from Washington Dulles on Mon, 5 Apr, arriving in Des Moines.Price includes taxes and charges.From $678, select.
Washington D.C..$885 per passenger.Departing Thu, 11 Mar, returning Mon, 15 Mar.Return flight with Delta.Outbound indirect flight with Delta, departs from Des Moines on Thu, 11 Mar, arriving in Washington Dulles.Inbound indirect flight with Delta, departs from Washington Dulles on Mon, 15 Mar, arriving in Des Moines.Price includes taxes and charges.From $885, select.

Find the cheapest month to fly from Des Moines to Washington Dulles

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Des Moines to Washington Dulles flights are currently cheapest in August.
Jun
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Jul
from $458
Aug
from $388
Sep
from $481
Oct
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Nov
from $459
Dec
from $617
Jan
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Feb
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Mar
from $885
Apr
from $678
May
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Des Moines to Washington Dulles: Alternative routes

Compare routes from Des Moines to Washington D.C. below. You may find an airport to fly into that's cheaper, faster, or easier than Washington Dulles.

Washington Ronald Reagan

5km from central Washington D.C.
ClosestCheapest
from $305
Search flights

Washington Dulles

37km from central Washington D.C.
from $388
Search flights

Baltimore Washington International

44km from central Washington D.C.
from $358
Search flights

Des Moines to Washington D.C.: Flight information

The things to know before you go.
Cheapest flight found$388
Cheapest month to flyAugust

Finding cheap flights from Des Moines to Washington Dulles: Frequently asked questions

The best price we found for a return flight from Des Moines to Washington Dulles is $388. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Des Moines to Washington Dulles. But we found flights with one or more stops from $388.
As of June 2026, there are no flights flying from Des Moines to Washington Dulles.
The cheapest month to fly from Des Moines to Washington Dulles is usually August.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Des Moines Airport to Washington Dulles Airport on Tuesday, 11 August 2026.
No airlines currently offer direct flights between Des Moines Airport and Washington Dulles Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Washington Dulles but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Washington D.C. is around 40 days in advance, so don’t leave your flight to the last minute.

Currently, Delta offers the cheapest flight tickets to Washington Dulles.

Flying from Des Moines Airport (DSM) to Washington Dulles Airport (IAD): what you need to know

  • Washington DC's timezone is UTC-5, which makes Washington DC one hour ahead of Des Moines.

  • Arriving two hours before an international flight and one hour ahead of a domestic departure are travel rules worth sticking to. Get to the airport on time to board your DSM to IAD flight.

  • During popular months like August, it's best to get to the airport well in advance. Arrive two hours before domestic departures and four hours ahead of an international flight whenever you're flying during a high season in general.

  • Consider adding a stopover when booking your ticket from Des Moines Airport to Washington Dulles Airport. Simply deselect 'Direct flights only' to break up your trip, or maybe even explore a new city along the way. Here are some options between DSM and IAD:

    • Chicago O'Hare International Airport

    • Detroit Wayne County Airport

    • St Louis Airport

How to find the cheapest flights from Des Moines Airport (DSM) to Washington Dulles Airport (IAD)

  • The cheapest price we've found for a one-way Des Moines Airport to Washington Dulles Airport flight is $179. A round-trip ticket is currently $388. Depending on the availability and when you book, these fares could change.

  • Don't leave things to the last minute. You're more likely to get cheap tickets from DSM to IAD if you book ahead. Airlines often offer some excellent early bird discounts.

  • If you're flexible with your travel dates, try using the 'Whole month' tool. It'll show you the lowest price in each month when looking for a flight from Des Moines Airport to Washington Dulles Airport.

  • Finding cheap flights from DSM to IAD is a cinch with Price Alerts. All you need to do is create one of these automatic alerts and we'll get in touch as soon as fares go down.

  • Tailor your flights using filters. Choose your preferred departure and arrival times, total journey duration and airlines. You can also sort your results by 'Cheapest,' 'Best' or 'Fastest' flights from Des Moines Airport to Washington Dulles Airport.

Handy information about Des Moines Airport (DSM)

  • DSM's address is 5800 Fleur Drive, Suite 201.

  • Of all flights departing from Des Moines Airport, 77% land on schedule at their destination.

  • Des Moines Airport is about 11 kilometres from central Des Moines. If you're driving, ride-sharing or catching a taxi from the centre, it'll take you 15 minutes or so to arrive, depending on the traffic.

  • The trip on public transport usually takes 30 minutes.

  • Get your break off to a relaxed start by staying near DSM. Whether you're boarding an early flight from Des Moines Airport to Washington Dulles Airport or want to avoid feeling rushed, these hotels are the answer:

Arriving at Washington Dulles Airport (IAD)

Getting from Washington Dulles Airport (IAD) to central Washington DC

  • The address for IAD is 1 Saarinen Circle.

  • Washington Dulles Airport is roughly 40 kilometres from the centre of Washington DC. Driving there takes about 45 minutes.

  • Getting to the centre by public transport typically takes 1 hour 10 minutes.

When to fly to Washington Dulles Airport (IAD)

  • It's time to choose your trip dates for your flight from Des Moines Airport to Washington Dulles Airport. July is the most popular month to visit Washington DC. If you like a more relaxed vibe, go in February.

  • The warmest month in Washington DC is July, with temperatures ranging between 19ºC (66ºF) and 33ºC (91ºF). Lock in your flights from Des Moines Airport to Washington Dulles Airport in this month if this is the type of weather you enjoy.

  • Look for cheap tickets from DSM to IAD in January if you like travelling in cooler conditions. Temperatures are at their lowest around then, ranging between -6ºC (21ºF) and 10ºC (50ºF) on average.

Explore more of the United States

  • Washington DC is always a good idea, but there are so many other corners of the United States you'll want to see. About 322 kilometres north-east of Washington DC, a trip to New York will keep you on the go. Start with popular sights like Central Park, Statue of Liberty and Metropolitan Museum of Art.

  • If you're eager to discover another side of the United States, consider Philadelphia, about 193 kilometres north-east of Washington DC. Independence Hall, Liberty Bell and Philadelphia Museum of Art are key highlights.

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Plan the rest of your trip from Des Moines to Washington D.C.

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.