IAD - MKE

$121 Find Cheap Flights from Washington Dulles Airport to Milwaukee

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dulles Intl to Milwaukee departing on 1/26. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Milwaukee

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Milwaukee, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Milwaukee, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$247
Overall average: $318
Delta
Sat 2/28Sat 3/7
IAD - MKE • 1 stop
Cheapest one-way
$111
Typical prices: $230-$350
Frontier
Mon 1/26
IAD - MKE • 1 stop
When to travel
March
Cheapest • 26% price drop
July
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Milwaukee!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Dulles Intl to Milwaukee (IAD-MKE)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Dulles Intl to Milwaukee that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Dulles Intl to Milwaukee

Sat, Feb 28 - Sat, Mar 7
Delta Logo
7:00 am - 2:30 pm
IAD
-
MKE
8h 30m
1 stop
Delta Logo
6:29 pm - 12:21 am
MKE
-
IAD
4h 52m
1 stop
$247Delta
Sat, Feb 7 - Mon, Feb 9
Delta Logo
7:15 am - 1:12 pm
IAD
-
MKE
6h 57m
1 stop
Delta Logo
6:29 pm - 12:24 am
MKE
-
IAD
4h 55m
1 stop
$256Delta
Fri, Feb 6 - Sun, Feb 8
Frontier Logo
9:35 am - 6:33 pm
IAD
-
MKE
9h 58m
1 stop
Frontier Logo
6:58 pm - 12:36 pm
MKE
-
IAD
16h 38m
1 stop
$261Frontier
Thu, Mar 5 - Mon, Mar 9
Delta Logo
6:00 am - 8:51 am
IAD
-
MKE
3h 51m
1 stop
Delta Logo
3:59 pm - 11:41 pm
MKE
-
IAD
6h 42m
1 stop
$265Delta
Sat, May 23 - Tue, May 26
Delta Logo
6:15 am - 10:01 am
IAD
-
MKE
4h 46m
1 stop
Delta Logo
5:00 pm - 10:59 pm
MKE
-
IAD
4h 59m
1 stop
$273Delta
Tue, Mar 31 - Fri, Apr 3
Delta Logo
6:00 am - 8:50 am
IAD
-
MKE
3h 50m
1 stop
Delta Logo
6:33 pm - 10:59 pm
MKE
-
IAD
3h 26m
1 stop
$277Delta
Thu, Feb 19 - Sun, Feb 22
Delta Logo
10:08 am - 2:50 pm
IAD
-
MKE
5h 42m
1 stop
Delta Logo
5:23 am - 11:35 am
MKE
-
IAD
5h 12m
1 stop
$286Delta
Fri, Feb 20 - Sun, Feb 22
Frontier Logo
11:29 am - 5:25 pm
IAD
-
MKE
6h 56m
1 stop
Frontier Logo
6:37 pm - 8:09 am
MKE
-
IAD
12h 32m
1 stop
$290Frontier
Sun, Feb 1 - Thu, Feb 5
Frontier Logo
9:18 am - 6:03 pm
IAD
-
MKE
9h 45m
1 stop
Frontier Logo
7:13 pm - 8:40 am
MKE
-
IAD
12h 27m
1 stop
$296Frontier
Wed, Mar 25 - Mon, Mar 30
Delta Logo
7:18 am - 12:13 pm
IAD
-
MKE
5h 55m
1 stop
Delta Logo
6:46 pm - 12:31 am
MKE
-
IAD
4h 45m
1 stop
$298Delta
Booking Insights

KAYAK's insights & trends for Dulles Intl to Milwaukee flights

Get data-powered insights and trends into flights from Dulles Intl to Milwaukee to help you find the cheapest flights, the best time to fly and much more.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Washington, D.C. Dulles Intl Airport to Milwaukee, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Washington, D.C. Dulles Intl Airport to Milwaukee is March, where tickets cost $263 (return) on average. On the other hand, the most expensive months are June and May, where the average cost of round-trip tickets is $664 and $421 respectively.

Good to know

Low seasonFebruary
Cheapest flight$111
Best time to beat the crowds with an average 11% drop in price.
Most popular time to fly and prices are also 16% lower on average.
Flight from Washington Dulles Airport to Milwaukee

When to book flights from Dulles Intl to Milwaukee

Are your dates flexible? Find out the best times to travel from Dulles Intl to Milwaukee based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Washington Dulles Airport to Milwaukee flights

  • What is the cheapest flight from Washington, D.C. Dulles Intl Airport to Milwaukee?

    In the last 3 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to Milwaukee was $121 for a one-way ticket and $247 for a round-trip.

  • Do I need a passport to fly between Washington Dulles Airport and Milwaukee?

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which airports will I be using when flying from Washington Dulles Airport to Milwaukee?

    When flying out of Washington Dulles Airport you will be using Washington, D.C. Dulles Intl. You will be landing at Milwaukee, also known as Milwaukee-Mitchell.

  • Which aircraft models fly most regularly from Washington Dulles Airport to Milwaukee?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Washington Dulles Airport to Milwaukee?

    oneworld, Star Alliance, and SkyTeam are the airline alliances operating flights between Washington Dulles Airport and Milwaukee, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from Washington, D.C. to Milwaukee, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to Milwaukee are Delta and United Airlines. With an average price for the route of $266 and an overall rating of 7.9, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $348 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Washington Dulles Airport to Milwaukee?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington Dulles Airport to Milwaukee.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington Dulles Airport to Milwaukee?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Milwaukee from Washington Dulles Airport is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Washington Dulles Airport to Milwaukee?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Milwaukee with an airline and back to Washington Dulles Airport with another airline. Booking your flights between Washington Dulles Airport and MKE can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington Dulles Airport to Milwaukee?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Milwaukee from Washington Dulles Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines serving from Dulles Intl to Milwaukee

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Milwaukee. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Dulles Intl to Milwaukee? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 8075 reviews
7.8Entertainment
8.1Boarding
8.5Crew
7.2Food
7.9Comfort
Airline reviews

No in flight service, no explanation - FC got service, C+ did not, unsure about Economy. No turbulence to speak of, so I guess another way to cut cost, or promote health and well being of Delta employees? Also, boarding in MEM combined zones, and with overhead space already full on both flights after Zone 2/ Diamond, presents a huge challenge to find a space for a bag. Delta, other than point A to B, is no longer reasonable to fly - very poor experiences, not even taking into account the chastising at the gate and rude crews, across the board.

4.0 OkayUros, Jan 2026
MEM - ATL
Read more Delta reviews

No in flight service, no explanation - FC got service, C+ did not, unsure about Economy. No turbulence to speak of, so I guess another way to cut cost, or promote health and well being of Delta employees? Also, boarding in MEM combined zones, and with overhead space already full on both flights after Zone 2/ Diamond, presents a huge challenge to find a space for a bag. Delta, other than point A to B, is no longer reasonable to fly - very poor experiences, not even taking into account the chastising at the gate and rude crews, across the board.

It would have been better if the flight wasn't delayed by 2.5 hours

Delta’s staff is unmatched. From the gate agents, to the pilots, to the flight attendants… all top of the industry.

Delta flight Delay for ,more that two hours i.e original flight was 6.30 PM and it starts at 8.45 PM, When we connect Delta team for meal vouchers as it is late arrival in designation,But we did not get it as per delta policy , which is not good for mid night arrival,

Inexperienced boarding crew allowed too many bags on to a full flight and delayed takeoff causing a missed connection and unplanned overnight stay. There was a hotel at the airport but Delta would not pay for it offering only to shuttle me to an area hotel. Never even offerred so much as an apology by anyone working for Delta.

Staff was great! Kind and cordial! Middle seat row 28 seat B has a hump in it. Trays were getting stuck when putting down and up. Good flight

Departure was delayed resulting in me missing my connection. Delta did not autimatically find me another flight.

The seats weren’t reclining even though it wasn’t as exit seat

It was good because we traveled without luggage, carry on only.

I usually get upgraded so my experience is usually amazing. I did not get upgraded this time - which was fine - but the wifi had issues, the monitors were going in & out, & (though not Delta's fault) one of the gentlemen next to me desperately needed a shower.

Was happy we finally got upgraded in 1st class. The seat getting old. The cushiness need some improvement.

Ineffective communication with United resulted in lost baggage. Their Baggage Tracing counter at MUC was shut down from 11:00-14:15 on my arrival. Undertrained, underinformed staff had me Running all over MUC to find someone to help me to no avail. Staff was rude, unhelpful, and unable to effectively use the systems they did have operational. They refused to contact United in any way or provide any accommodation or other resources while I waited for my luggage. This has destroyed my downstream itinerary. If they had even the slightest visibility I may have been able to reschedule/plan, but again, their staff provided nothing, and did nothing more than their website, which doesn’t even work on a standard phone browser. Miserable failure at all levels that weren’t associated with the operation of the aircraft.

Sat next to a one year old. She crawled all over the place and made me laugh.

The Crew and the food was the worst I ever had in Business Class. First they told us there were no space for carry on. It was plenty of space over our 2 row seats, we had to ask to let us travel with it which was accepted. They were aware that we had to run for the connection due to the previous flight delay. Have us one hour waiting for more customers and not even offer a glass of water. Then started the service and they started to serve other passengers drinks in business and did not offer any drinks until they serve our pre ordered meal and I ask for something to drink. I had to wait until they finished to serve all passengers until Inget something. The crew was the worts I ever had for Business Class in my life.

Not great experience - we were super late boarding due to issues with aircraft. Then when we finally all got onboard and seated and they started taxiing out to the runway they just stopped then turned around and went back to the airport. Apparently the crew “ran out of time” to legally fly us. They mentioned that they were about 2 minutes away from taking off. I understand the rules and safety but kinda wonder why they would have bothered boarding us in the first place? Had to go all the way back and de plane and then wait in a HUGE line to get a hotel (this is somewhere around 2:30am) finally got to hotel by Uber (no shuttle after 20min so gave up) and they ended up putting us all back on the same aircraft at 10am next morning so got about 2.5 hours sleep. They did give us. $250 credit, but it was a São Paulo Brazil flight out of Dulles. The flight and everything was fine.

Starlink wifi on the Embraer E175 is an excellent experience. I was able to connect and work from IAD all the way to approach into BTV.

7 hours delayed due to operational issues on United’s end. Basically laziness.

Short flight but an "eager to help" crew made the journey more enjoyable!

During booking, I kept trying submitting my payment from the Mexican website and it didn't work. After I had the idea to change it to the Canadian website, it worked but I had to be charged the equivalent of 50 CAD more. I received the clear instruction that I would only be able to check-in at the airport and that it was impossible to select a seat 24 hours before departure, that I had to pay 144 CAD to do so, although not only was I able to check-in 24 hours before departure, but I could have selected my seats for free then. All in all, I almost threw $200 out the window due to misleading information. Besides, the app kept crashing, the information to get to the gate on the app was inaccurate, my gate was switched and I was only informed once in the air (luckily I had noticed the departure pannel), I was not addressed in my language beforehand and even if I tried I was immediately answered in English (which meant the crew understood but didn't want to answer accordingly), there was only one snack & beverage service on my medium haul flight and no beverage service on my short haul flight. To be fair, the planes were comfortable, the crew apart from the language issue was helpful, dynamic and engaging, the plane was clean and the directions were clear and direct. United has a lot of potential to be one of my favourite airlines, but the devil is in the details and a lot of them missed the target.

Better WiFi. I cannot understand that in 2025, United is so behind on a technology that is now a necessity and still painfully unreliable, slow and keeps disconnecting.

We were upgraded to First Class and it was a great flight

delayed due to weather. Could not communicate with family since the wifi was broken

it was fine, decent flight... dont get food besides cookies or pretzels so not sure why you ask about food. same for entertainment..

I got sick nothing contagious but distressing and the care I received by Kayla? Keighly the flight attendant will be memorable for ever. Thank You

We were told the flight was delayed 5 times, then it was moved to the next day.

this plane was really old, had exit row seats and tray was in arm of seat so super uncomfortable to use. another seat they could t even use the tray it was broke. seat i. front of me had duct tape on it cause seat was ripped open... this plane should either be updated or retired.

We loved the steward on the plane. He made the night enjoyable

Flight delay was communicated before leaving for airport which caused it to be a non-event. Great flight and crew!

The flight attendant, a black woman with curly hair who sat near Row 21, was wonderful and kind.

American airlines suck they delay the flights all the time made me sleep in an airport because my flight was delayed and I miss my connecting flight

Everything you need to know for your flight from Dulles Intl to Milwaukee

Information on your arrival and departure airports