IAD - MLI

$261 Find Cheap Flights from Washington Dulles Airport to Moline - Compare and Save

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dulles Intl to Moline departing on 9/29. 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 Moline

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

Cheapest round-trip
$261
Typical prices: $318-$356
Delta
Tue 9/29Tue 10/6
IAD - MLI • 1 stop
Cheapest one-way
$419
United Airlines
Mon 7/6
IAD - MLI • 1 stop
Top airlines
Cheapest • from $261 (round-trip)
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Dulles Intl and Moline. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $339 (round-trip)
Shortest trip • 4h 48m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 100% price drop
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 Moline!
Flight Deals
Booking Insights
Flight Deals

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

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

Tue, Sep 29 - Tue, Oct 6
Delta Logo
12:26 pm - 4:22 pm
IAD
-
MLI
4h 56m
1 stop
Delta Logo
5:00 pm - 12:20 am
MLI
-
IAD
6h 20m
1 stop
$261Delta
Tue, Jul 28 - Mon, Aug 3
Delta Logo
6:00 am - 10:12 am
IAD
-
MLI
5h 12m
1 stop
Delta Logo
6:00 am - 2:05 pm
MLI
-
IAD
7h 05m
1 stop
$285Delta
Wed, Sep 16 - Mon, Sep 21
American Airlines Logo
7:57 am - 4:27 pm
IAD
-
MLI
9h 30m
2 stops
American Airlines Logo
3:53 pm - 10:51 pm
MLI
-
IAD
5h 58m
1 stop
$290American Airlines
Sat, Jul 18 - Tue, Jul 21
Delta Logo
10:58 am - 4:25 pm
IAD
-
MLI
6h 27m
1 stop
Delta Logo
5:05 pm - 12:41 am
MLI
-
IAD
6h 36m
1 stop
$309Delta
Fri, Aug 7 - Mon, Aug 10
Delta Logo
6:00 am - 10:25 am
IAD
-
MLI
5h 25m
1 stop
Delta Logo
5:09 pm - 12:34 am
MLI
-
IAD
6h 25m
1 stop
$310Delta
Mon, Jul 13 - Sat, Jul 18
United Airlines Logo
6:10 am - 10:04 am
IAD
-
MLI
4h 54m
1 stop
United Airlines Logo
1:15 pm - 7:02 pm
MLI
-
IAD
4h 47m
1 stop
$324United Airlines
Wed, Sep 16 - Mon, Sep 21
American Airlines Logo
7:57 am - 4:27 pm
IAD
-
MLI
9h 30m
2 stops
American Airlines Logo
3:53 pm - 10:51 pm
MLI
-
IAD
5h 58m
1 stop
$333American Airlines
Sat, Aug 8 - Mon, Aug 10
American Airlines Logo
5:34 pm - 9:13 pm
IAD
-
MLI
4h 39m
1 stop
American Airlines Logo
4:05 pm - 10:55 pm
MLI
-
IAD
5h 50m
1 stop
$336American Airlines
Thu, Jul 9 - Mon, Jul 13
American Airlines Logo
9:20 am - 3:50 pm
IAD
-
MLI
7h 30m
1 stop
American Airlines Logo
4:20 pm - 10:05 pm
MLI
-
IAD
4h 45m
1 stop
$339American Airlines
Sat, Aug 29 - Wed, Sep 2
United Airlines Logo
3:40 pm - 7:31 pm
IAD
-
MLI
4h 51m
1 stop
United Airlines Logo
8:14 am - 1:55 pm
MLI
-
IAD
4h 41m
1 stop
$341United Airlines
Booking Insights

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

Get data-powered insights and trends into flights from Dulles Intl to Moline 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 Moline?

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 Moline, 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 Moline is February, where tickets cost $0 (return) on average. On the other hand, the most expensive months are November and August, where the average cost of round-trip tickets is $624 and $537 respectively.

Good to know

Low seasonMarch
Cheapest flight$261
Best time to beat the crowds with an average 28% drop in price.
Most popular time to fly with an average 6% increase in price.
Flight from Washington Dulles Airport to Moline

When to book flights from Dulles Intl to Moline

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

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

    In the last 5 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to Moline was $419 for a one-way ticket and $261 for a round-trip.

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

    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 Moline?

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

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

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

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

    Star Alliance is the only airline alliance operating flights between Washington Dulles Airport and Moline.

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

    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 Moline.

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

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

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

    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 Moline 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 airline flying from Dulles Intl to Moline

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Moline. 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 Moline? 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 9899 reviews
7.3Comfort
7.1Entertainment
6.6Food
8.1Crew
7.7Boarding
Airline reviews

Like: departed and arrived on time. Unlike: Food options for purchase allways bad, 1 of 2 of the crew members not very friendly at all. Seats and leg room aweful. At this point I am thinking on switching to AA.

6.0 GoodEnrique, Jun 2026
IAD - LAX
Read more United Airlines reviews

Like: departed and arrived on time. Unlike: Food options for purchase allways bad, 1 of 2 of the crew members not very friendly at all. Seats and leg room aweful. At this point I am thinking on switching to AA.

United didn’t even try to hold the flight for me. They knew I had a tight connection and when I arrived at the gate less than 10 mins after final boarding the flight had already gone. The gate agent wasn’t even notified that I was on my way. She was told I wasn’t at the airport

Good quick flight on a small but comfortable plane. I'm 6'3 and had plenty of space.

The flight was delayed so we were dead tired, and after that the turbulence was horrible. I was very scared.

Very good. Because of the delays with my previous flight, I missed my connection, but I was able to book another flight through the United app easily.

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

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.

The schedule to Moline changed 5 times. The gate changed 6 times. That is a pathetic way to run an airline. No wonder that no one in our company flies on United Express to or from Moline. Changes happen most of the time. I learned my lesson on this trip…never again!

Flight was delayed by over an hour and gate checked bags took 15 minutes to be delivered to the jet bridge.

Almost 2 hour delay in boarding with all standing ready to board at original time. No explanation given.

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

Information on your arrival and departure airports