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Dulles Intl

$271+ Cheap flights from Moline (MLI) to Dulles Intl (IAD)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/9. Fares are subject to change and may not be available on all flights or dates of travel.
MLI — IAD
Aug 25 — Sep 11
Tue 8/25
Tue 9/1
1 adult, Economy
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Cheap flight deals from Moline to Dulles Intl

Cheapest flights from Moline to Dulles Intl
Explore the most affordable flight options available from Moline to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 26, 2026.

This Delta deal was found by Cheapflights users on 7/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/305:16 pm
MLI
-
IAD
1 stop6h 25m
Delta
Sat 10/36:00 am
IAD
-
MLI
1 stop5h 13m
Delta
Deal found 7/21$271
This American Airlines deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/303:53 pm
MLI
-
IAD
1 stop5h 58m
American Airlines
Sat 10/37:57 am
IAD
-
MLI
2 stops9h 30m
American Airlines
Deal found 7/24$276
This American Airlines deal was found by Cheapflights users on 7/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/711:25 am
MLI
-
IAD
2 stops8h 49m
American Airlines
Tue 11/1010:44 am
IAD
-
MLI
1 stop6h 01m
American Airlines
Deal found 7/21$290
This Delta deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/511:08 am
MLI
-
IAD
1 stop4h 34m
Delta
Sun 9/276:00 am
IAD
-
MLI
1 stop5h 13m
Delta
Deal found 7/22$295
This Delta deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/106:00 am
MLI
-
IAD
1 stop4h 30m
Delta
Mon 9/146:00 am
IAD
-
MLI
1 stop5h 13m
Delta
Deal found 7/24$305
This Delta deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/1311:08 am
MLI
-
IAD
1 stop6h 20m
Delta
Thu 8/206:00 am
IAD
-
MLI
1 stop5h 25m
Delta
Deal found 7/23$319
This United Airlines deal was found by Cheapflights users on 7/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/56:30 am
MLI
-
IAD
1 stop4h 22m
United Airlines
Sun 8/96:10 am
IAD
-
MLI
1 stop4h 54m
United Airlines
Deal found 7/21$339
This American Airlines deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/294:20 pm
MLI
-
IAD
1 stop4h 45m
American Airlines
Wed 8/55:34 pm
IAD
-
MLI
1 stop4h 39m
American Airlines
Deal found 7/22$343

Find flight deals from Moline to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Moline (MLI) to Dulles Intl (IAD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 26, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$271
(Delta)

Popular in

November

Cheapest in

January

Average price

$284
Provider with most accurate pricing for Moline Quad-City-Washington, D.C. Dulles Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Moline Quad-City-Washington, D.C. Dulles Intl flights.
Search Deals
From Moline Quad-City to Washington, D.C. Dulles Intl
Search Deals
Highest demand for flights based on searches. 32% potential increase in price ($190 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 14% potential price decrease ($49 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Moline to Dulles Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 26, 2026.
Use the filters below to find and compare flights from Moline to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MolineWashington, D.C.

MLI - IAD

MLIIAD

Moline Quad-City

Wed 9/9

8:13 am-1:55 pm

1 stop4h 42m

Washington, D.C. Dulles Intl

Thu 9/10

1:10 pm-7:31 pm

1 stop7h 21m

$271

MolineWashington, D.C.

MLI - IAD

MLIIAD

Moline Quad-City

Wed 9/30

5:16 pm-12:41 am

1 stop6h 25m

Washington, D.C. Dulles Intl

Sat 10/3

6:00 am-10:13 am

1 stop5h 13m

$271

MolineWashington, D.C.

MLI - IAD

MLIIAD

Moline Quad-City

Wed 8/26

8:14 am-4:02 pm

1 stop6h 48m

Washington, D.C. Dulles Intl

Sat 8/29

6:15 am-9:54 am

1 stop4h 39m

$271

MolineWashington, D.C.

MLI - IAD

MLIIAD

Moline Quad-City

Wed 9/30

3:53 pm-10:51 pm

1 stop5h 58m

Washington, D.C. Dulles Intl

Sat 10/3

7:57 am-4:27 pm

2 stops9h 30m

$276

MolineWashington, D.C.

MLI - IAD

MLIIAD

Moline Quad-City

Sat 9/5

11:08 am-4:42 pm

1 stop4h 34m

Washington, D.C. Dulles Intl

Sun 9/27

6:00 am-10:13 am

1 stop5h 13m

$295
Quickest round-trip

MolineWashington, D.C.

MLI - IAD

MLIIAD

Moline Quad-City

Wed 9/16

6:00 am-11:30 am

1 stop4h 30m

Washington, D.C. Dulles Intl

Sun 9/20

6:00 am-10:13 am

1 stop5h 13m

$295

MolineWashington, D.C.

MLI - IAD

MLIIAD

Moline Quad-City

Thu 12/17

5:55 am-11:59 am

1 stop5h 04m

Washington, D.C. Dulles Intl

Sat 1/2

4:15 pm-10:30 pm

1 stop7h 15m

$295

MolineWashington, D.C.

MLI - IAD

MLIIAD

Moline Quad-City

Tue 9/22

5:16 pm-12:41 am

1 stop6h 25m

Washington, D.C. Dulles Intl

Sun 9/27

6:00 am-10:13 am

1 stop5h 13m

$305

MolineWashington, D.C.

MLI - IAD

MLIIAD

Moline Quad-City

Thu 8/13

11:08 am-6:28 pm

1 stop6h 20m

Washington, D.C. Dulles Intl

Thu 8/20

6:00 am-10:25 am

1 stop5h 25m

$319
Cheapest one-way

MolineWashington, D.C.

MLI - IAD

MLIIAD

Moline Quad-City

Fri 9/25

5:09 pm-12:41 am

1 stop6h 32m

$274

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/22

Showing 1-10 of 16 resultsSorted by cheapest first
1
2

Compare providers for flights from Moline to Dulles Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Moline to Dulles Intl in July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Moline-Washington, D.C. Dulles Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Moline-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Moline-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Moline-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Moline-Washington, D.C. Dulles Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Moline to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Moline with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Dulles Intl. Reviews last updated July 26, 2026.
Read reviews from past customers who have flown United Airlines from Moline to Washington, D.C. Dulles Intl Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
10,040 reviews

Crew

8.1

Boarding

7.7

Food

6.6

Comfort

7.3

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
10,040 reviews
United Airlines
7.4
Good
10,040 reviews

Crew

8.1

Boarding

7.7

Food

6.6

Comfort

7.3

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Related info for your journey

Find useful and relevant information for your journey from Moline to Dulles Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Moline to Washington, D.C. Dulles Intl?

    For a flight from Moline to Washington, D.C. Dulles Intl, you will be flying from Quad-City. Moline Quad-City (MLI) is just 4.0 mi from the center of the city. Quad-City is the only Moline airport and it handles 0 outbound flights to Washington, D.C. Dulles Intl per day. 1 airline has flights to Washington, D.C. Dulles Intl from Moline Quad-City on a regular basis.

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

    Airlines like United Airlines, Delta, and American Airlines fly from Moline to Washington, D.C. Dulles Intl Airport in about 4h 42m. The time it takes to get you to your destination can typically vary by up to 1h 43m. There are 709 mi between Moline and Washington, D.C. Dulles Intl Airport. Both multi-stop and nonstop flights can be found to your destination and back.

  • What is the cheapest airline to fly from Moline to Washington, D.C. Dulles Intl Airport round-trip?

    United Airlines, at $248, was found to be the cheapest airline from Moline to Washington, D.C. Dulles Intl Airport.. You may be able to fly from Moline to Washington, D.C. Dulles Intl Airport for 37% less than the average price by searching for this airline.

  • Can I find deals for flights from Moline to Dulles Intl that include hotel bookings?

    Yes. In addition to deals on Moline to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Moline to Dulles Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Moline to Dulles Intl.

  • Can I find deals for business class flights from Moline to Dulles Intl?

    Yes. Cheapflights offers flight deals from Moline to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near Washington, D.C. Dulles Intl Airport?

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Alexandria
Tysons
Arlington
Owings Mills
Springfield
Lanham
Reston
Herndon
Rockville
Chantilly
Hyattsville
Fredericksburg
Falls Church
Hanover
Manassas
Laurel
Sterling
Clinton
Hunt Valley
Cordova

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Moline to Dulles Intl

Discover the top airline that operate flights from Moline to Dulles Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 26, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$252Average$340FlexibilityNo cancel feeOn-time69%

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