Skyscanner home

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

Compare Des Moines to Baltimore Washington International flight deals

Find the cheapest month or even day of the year to fly to Baltimore Washington International

Book the best Baltimore Washington International fare with no extra fees

Flight deals from Des Moines to Baltimore Washington International

Looking for a cheap last-minute deal or the best return flight from Des Moines Airport to Baltimore Washington International Airport? If you want to travel next month, return fares start from $450. Find the lowest prices on one-way and return tickets right here.
Washington D.C..$421 per passenger.Departing Sun, 6 Sep, returning Sun, 13 Sep.Return flight with Allegiant Air and Frontier Airlines.Outbound indirect flight with Allegiant Air, departs from Des Moines on Sun, 6 Sep, arriving in Baltimore Washington International.Inbound indirect flight with Frontier Airlines, departs from Baltimore Washington International on Sun, 13 Sep, arriving in Des Moines.Price includes taxes and charges.From $421, select.
Washington D.C..$450 per passenger.Departing Wed, 19 Aug, returning Tue, 25 Aug.Return flight with Delta.Outbound indirect flight with Delta, departs from Des Moines on Wed, 19 Aug, arriving in Baltimore Washington International.Inbound indirect flight with Delta, departs from Baltimore Washington International on Tue, 25 Aug, arriving in Des Moines.Price includes taxes and charges.From $450, select.
Washington D.C..$451 per passenger.Departing Mon, 31 Aug, returning Mon, 7 Sep.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Des Moines on Mon, 31 Aug, arriving in Baltimore Washington International.Inbound indirect flight with Southwest Airlines, departs from Baltimore Washington International on Mon, 7 Sep, arriving in Des Moines.Price includes taxes and charges.From $451, select.
Washington D.C..$451 per passenger.Departing Mon, 16 Nov, returning Wed, 18 Nov.Return flight with Delta.Outbound indirect flight with Delta, departs from Des Moines on Mon, 16 Nov, arriving in Baltimore Washington International.Inbound indirect flight with Delta, departs from Baltimore Washington International on Wed, 18 Nov, arriving in Des Moines.Price includes taxes and charges.From $451, select.
Washington D.C..$453 per passenger.Departing Tue, 29 Sep, returning Thu, 1 Oct.Return flight with Delta.Outbound indirect flight with Delta, departs from Des Moines on Tue, 29 Sep, arriving in Baltimore Washington International.Inbound indirect flight with Delta, departs from Baltimore Washington International on Thu, 1 Oct, arriving in Des Moines.Price includes taxes and charges.From $453, select.
Washington D.C..$464 per passenger.Departing Sat, 3 Oct, returning Mon, 5 Oct.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Des Moines on Sat, 3 Oct, arriving in Baltimore Washington International.Inbound indirect flight with Southwest Airlines, departs from Baltimore Washington International on Mon, 5 Oct, arriving in Des Moines.Price includes taxes and charges.From $464, select.
Washington D.C..$579 per passenger.Departing Fri, 9 Oct, returning Sun, 23 May.Return flight with Delta.Outbound indirect flight with Delta, departs from Des Moines on Fri, 9 Oct, arriving in Baltimore Washington International.Inbound indirect flight with Delta, departs from Baltimore Washington International on Sun, 23 May, arriving in Des Moines.Price includes taxes and charges.From $579, select.
Washington D.C..$579 per passenger.Departing Fri, 21 May, returning Sun, 23 May.Return flight with Delta.Outbound indirect flight with Delta, departs from Des Moines on Fri, 21 May, arriving in Baltimore Washington International.Inbound indirect flight with Delta, departs from Baltimore Washington International on Sun, 23 May, arriving in Des Moines.Price includes taxes and charges.From $579, select.
Washington D.C..$592 per passenger.Departing Fri, 5 Feb, returning Fri, 12 Feb.Return flight with Delta.Outbound indirect flight with Delta, departs from Des Moines on Fri, 5 Feb, arriving in Baltimore Washington International.Inbound indirect flight with Delta, departs from Baltimore Washington International on Fri, 12 Feb, arriving in Des Moines.Price includes taxes and charges.From $592, select.
Washington D.C..$594 per passenger.Departing Thu, 24 Dec, returning Sun, 27 Dec.Return flight with Delta.Outbound indirect flight with Delta, departs from Des Moines on Thu, 24 Dec, arriving in Baltimore Washington International.Inbound indirect flight with Delta, departs from Baltimore Washington International on Sun, 27 Dec, arriving in Des Moines.Price includes taxes and charges.From $594, select.

Find the cheapest month to fly from Des Moines to Baltimore Washington International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Des Moines to Baltimore Washington International flights are currently cheapest in September.
Jul
Find prices
Aug
from $450
Sep
from $421
Oct
from $464
Nov
from $451
Dec
from $594
Jan
Find prices
Feb
from $592
Mar
Find prices
Apr
Find prices
May
from $579
Jun
Find prices

Des Moines to Baltimore Washington International: 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 Baltimore Washington International.

Washington Ronald Reagan

5km from central Washington D.C.
ClosestCheapest
from $349
Search flights

Washington Dulles

37km from central Washington D.C.
from $410
Search flights

Baltimore Washington International

44km from central Washington D.C.
from $421
Search flights

Des Moines to Washington D.C.: Flight information

The things to know before you go.
Cheapest flight found$421
Cheapest month to flySeptember

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

The best price we found for a return flight from Des Moines to Baltimore Washington International is $421. 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 Baltimore Washington International. But we found flights with one or more stops from $421.
As of July 2026, there are no flights flying from Des Moines to Baltimore Washington International.
The cheapest month to fly from Des Moines to Baltimore Washington International is usually September.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Des Moines Airport to Baltimore Washington International Airport on Sunday, 6 September 2026.
No airlines currently offer direct flights between Des Moines Airport and Baltimore Washington International 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 Baltimore Washington International 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, Allegiant Air offers the cheapest flight tickets to Baltimore Washington International.

Flying from Des Moines Airport (DSM) to Baltimore Washington International Airport (BWI): what you need to know

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

  • Your DSM to BWI flight won't wait if you're running late, so be at the airport on time. Arrive up to one hour in advance for domestic flights and two hours ahead when you're flying internationally.

  • Travelling during a peak time like August? School holidays and other high seasons can mean longer lines at airport checkpoints. Play things extra safe and get there up to four hours ahead of an international flight and two hours before a domestic departure.

  • If you want to explore another city along the way, just deselect 'Direct flights only' when searching for your ticket from Des Moines Airport to Baltimore Washington International Airport. Here are the most popular stopovers between DSM and BWI:

    • Chicago O'Hare International Airport

    • Minneapolis St Paul Airport

    • St Louis Airport

Handy information about Des Moines Airport (DSM)

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

  • When it comes to the on-time performance of Des Moines Airport, data shows 77% of flights arrive within the scheduled timeframe.

  • Central Des Moines to Des Moines Airport is around 11 kilometres. Depending on traffic, it'll take about 15 minutes to get there if you're driving, catching a taxi or ride-sharing.

  • The trip on public transport takes about 30 minutes.

  • Booked an early flight from Des Moines Airport to Baltimore Washington International Airport? Avoid the stress of rushing to the airport (and sneak in some extra snooze time) by choosing one of these stays near DSM:

Arriving at Baltimore Washington International Airport (BWI)

When to fly to Baltimore Washington International Airport (BWI)

  • The quietest month for a flight from Des Moines Airport to Baltimore Washington International Airport is March, while July is the busiest. Choose the ideal time to visit Washington DC based on whether you prefer a more relaxed vibe or a faster pace.

  • Book your flight from Des Moines Airport to Baltimore Washington International Airport for July if you want to go to Washington DC during its warmest month. Expect temperatures of between 19ºC (66ºF) and 33ºC (91ºF).

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

Explore more of the United States

  • New York is just one of the many cities in the United States waiting to be explored after you've experienced Washington DC. Around 322 kilometres away to the north-east, check out popular attractions including Central Park, Statue of Liberty and Metropolitan Museum of Art.

  • If there's time to check out another well-known destination in the United States, head for Philadelphia, about 193 kilometres north-east of Washington DC. Independence Hall, Liberty Bell and Philadelphia Museum of Art are highlights.

Plan smart, explore more

Where should Australians travel this year?

What are the cheapest days and weeks to fly?

5 best premium economy airlines worth paying for

How to search for multi-city flights with Skyscanner

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