MLI - IAD

$239 Find Cheap Flights from Moline to Washington Dulles Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Moline to Dulles Intl departing on 1/14. 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 Washington, D.C. Dulles Intl Airport

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

Cheapest round-trip
$249
Overall average: $442
United Airlines
Tue 1/13Sun 1/18
MLI - IAD • 1 stop
Cheapest one-way
$239
Delta
Wed 1/14
MLI - IAD • 1 stop
When to travel
August
Cheapest • 48% price drop
December
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Dulles Intl!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Moline to Dulles Intl (MLI-IAD)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Moline to Dulles Intl 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 Moline to Dulles Intl

Tue, Jan 13 - Sun, Jan 18
United Airlines Logo
10:47 am - 4:00 pm
MLI
-
IAD
4h 13m1 stop
United Airlines Logo
5:17 pm - 9:36 pm
IAD
-
MLI
5h 19m1 stop
$249United Airlines
Fri, Apr 24 - Mon, Apr 27
United Airlines Logo
5:37 pm - 12:12 am
MLI
-
IAD
5h 35m1 stop
United Airlines Logo
5:20 pm - 10:22 pm
IAD
-
MLI
6h 02m1 stop
$278United Airlines
Sat, Feb 14 - Wed, Feb 18
United Airlines Logo
8:15 am - 4:05 pm
MLI
-
IAD
6h 50m1 stop
United Airlines Logo
1:02 pm - 4:47 pm
IAD
-
MLI
4h 45m1 stop
$319United Airlines
Wed, Jun 3 - Sun, Jun 7
United Airlines Logo
5:42 pm - 11:57 pm
MLI
-
IAD
5h 15m1 stop
United Airlines Logo
6:20 am - 10:14 am
IAD
-
MLI
4h 54m1 stop
$334United Airlines
Thu, Dec 18 - Mon, Dec 22
United Airlines Logo
10:47 am - 5:30 pm
MLI
-
IAD
5h 43m1 stop
United Airlines Logo
6:30 am - 12:13 pm
IAD
-
MLI
6h 43m1 stop
$349United Airlines
Tue, Jan 13 - Sun, Jan 18
United Airlines Logo
5:29 pm - 7:30 am
MLI
-
IAD
13h 01m2 stops
United Airlines Logo
5:17 pm - 9:36 pm
IAD
-
MLI
5h 19m1 stop
$355United Airlines
Wed, Jan 14 - Fri, Jan 16
Delta Logo
5:11 pm - 11:37 pm
MLI
-
IAD
5h 26m1 stop
Delta Logo
6:15 pm - 10:33 pm
IAD
-
MLI
5h 18m1 stop
$364Delta
Sat, Feb 14 - Wed, Feb 18
United Airlines Logo
6:30 am - 11:49 am
MLI
-
IAD
4h 19m1 stop
United Airlines Logo
8:20 am - 9:27 pm
IAD
-
MLI
14h 07m2 stops
$374United Airlines
Wed, Jan 14 - Fri, Jan 16
American Airlines Logo
11:28 am - 11:12 pm
MLI
-
IAD
10h 44m2 stops
American Airlines Logo
5:46 pm - 10:58 am
IAD
-
MLI
18h 12m2 stops
$410American Airlines
Mon, Dec 29 - Fri, Jan 2
United Airlines Logo
5:33 pm - 7:29 am
MLI
-
IAD
12h 56m2 stops
United Airlines Logo
6:30 am - 12:13 pm
IAD
-
MLI
6h 43m1 stop
$418United Airlines
Booking Insights

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

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

What’s the cheapest day of the week to fly from Moline to Washington Dulles Airport?

The average price of all round-trip flights from Moline to Washington, D.C. Dulles Intl Airport clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Moline to Washington Dulles Airport, look for departures on Tuesdays and avoid leaving on a Monday, as it's usually the priciest day. When flying back from Washington Dulles Airport, Tuesday is the cheapest day to fly and Friday is the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Moline to Washington, D.C. Dulles Intl Airport, 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 Moline to Washington, D.C. Dulles Intl Airport is August, where tickets cost $248 (return) on average. On the other hand, the most expensive months are November and February, where the average cost of round-trip tickets is $995 and $588 respectively.

Good to know

Low seasonFebruary
Cheapest flight$239
Best time to beat the crowds but there is an average 22% increase in price.
Flight from Moline to Washington Dulles Airport

When to book flights from Moline to Dulles Intl

Are your dates flexible? Find out the best times to travel from Moline to Dulles Intl 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 Moline to Washington Dulles Airport flights

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

    In the last 3 days, the lowest price for a flight from Moline to Washington, D.C. Dulles Intl Airport was $126 for a one-way ticket and $249 for a round-trip.

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

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

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

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

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

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

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

    The two airlines most popular with KAYAK users for flights from Moline to Washington, D.C. are United Airlines and American Airlines. With an average price for the route of $470 and an overall rating of 7.4, United Airlines is the most popular choice. American Airlines is also a great choice for the route, with an average price of $532 and an overall rating of 7.2.

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

    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 Moline to Washington Dulles Airport.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington Dulles Airport from Moline 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 Moline to Washington Dulles Airport?

    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 Washington Dulles Airport with an airline and back to Moline with another airline. Booking your flights between Moline and IAD 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 Moline to Washington Dulles Airport?

    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 Washington Dulles Airport from Moline up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Moline to Dulles Intl

 
See real verified KAYAK customer reviews for airlines flying from Moline to Washington, D.C.. 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 Moline to Dulles Intl? 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.
7.4
United AirlinesOverall score based on 9065 reviews
7.7Boarding
7.1Entertainment
7.3Comfort
6.6Food
8.1Crew
Airline reviews

It was probably one of the worst flights I’ve been on. The restrooms were never cleaned or stocked. The food was very subpar, and i usually enjoy airline food, so I was disappointed. It was just all around a bad experience. The only saving grace was the flight attendants.

4.0 OkayTiara, Dec 2025
ACC - IAD
Read more United Airlines reviews

It was probably one of the worst flights I’ve been on. The restrooms were never cleaned or stocked. The food was very subpar, and i usually enjoy airline food, so I was disappointed. It was just all around a bad experience. The only saving grace was the flight attendants.

The only downside was my cell phone charger wouldn’t work in the charging port but everyone else’s would work in them all. My cell phone cable works fine in my hotel room in Frankfurt.

Great crew, excellent landing, good food. Over all great experience. Thank you!

One bag is incorrect and not acceptable for an international flight. The food was not just good. I won't fly with them again.

Not pleasant trip cross country when the entertainment and WiFi system not working. No entertainment for entirety of route. Staff was rather nonchalant in that they dismissed the problem due to age of plane. It would have been nice to know this up front so I could have come prepared to read or download movies before boarding Coincidentally or not, there was a similar issue with the entertainment system on my previous flight I took on my fist leg of the trip. There are no seat TVs, so you must rely on the app when it works. United can do better. Also, what use it it to pay for boarding group 2 when half of the passengers are in the same line as you?

Crew was dismissive. Snacks and refills not offered. Poor business class experience. Bed not comfortable compared to Emirates or BA.

Flight was delayed for 5 hours because crew didn’t have enough time to rest - this seems like it could have been avoided with better scheduling. Food was not good.

IAD with the archaic people movers is just a place to be avoided.

Overall, it was good. I was seating next to a wonderful lady and did not notice how time flew. Thanks

This is the best united airlines flight that I took. The crew was very friendly and the food was tasty!

Horrible. Both legs of my flight were delayed more than 6 hours. No compensation, no screens on the plane, and the plane was not clean.

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

The plane was late, when we did board the plane was as cold as a freezer. I was freezing the entire flight, no blankets. Lost miserable flight I’ve ever had.

3 hour weather delay followed by 1 hour (and counting) maintenance delay. UGH!

After we'd boarded , they canceled the flight. The crew didn't even know , we just all received text messages. Then after they deplaned us , AA was just like "too bad, go F your self, we sure ain't gonna help you"

After a two hour delay, my flight was CANCELLED! No pilot available. Such BS.

Initial flight was cancelled at the time of arrival to the airport, flight alternative requires switching from direct to flight with a layover, and the plane felt like it would split apart, it was so rattle-y.

Amazing food, great staff, with one noticable detail missing ...but no seat entertainment in any of aircraft ...I am not a fan

Weather delay for 2.5 hours followed by half hour crew delay, did not have ginger ale, uncomfortable seats

It was nobody’s fault - but the plane came 4-hrs late and we were updated randomly in 20-30 mins increments which left us hostage to sit and wait expectantly. It was very long and got very late. Our plane didn’t land until nearly 1 am! Also the toilet wasn’t working. The hosts were nice enough but were clearly “about to pass out” as one told me. Lastly, there was no snack or even time for it. Just a bad experience overall.

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

Information on your arrival and departure airports