What are the cheapest airlines flying from Moline to Washington, D.C. Dulles Intl Airport round-trip?

Delta, at $249, was found to be the cheapest airline from Moline to Washington, D.C. Dulles Intl Airport.Alternate airlines to your destination round-trip include American Airlines and United Airlines. You may be able to fly from Moline to Washington, D.C. Dulles Intl Airport for 43% less than the average price by searching for these airlines.

What are the cheapest airlines to fly from Moline to Washington, D.C. Dulles Intl Airport one-way?

The cheapest airlines for a one-way flight from Moline to Washington, D.C. Dulles Intl Airport are Delta ($126), American Airlines ($131), and United Airlines ($270).

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

Travelers seeking maximum savings on their Moline to Washington, D.C. Dulles Intl Airport flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Thursday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 2.6 in.

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

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

Leaving on a Monday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 165% on the overall cost on flights from Moline to Washington, D.C. Dulles Intl Airport.

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

February can be a great time to fly to Washington, D.C. Dulles Intl Airport from Moline with a flight ticket averaging about $378. Cheapflights users have found deals in the month of February for as cheap as $249. The most expensive prices can be found in the month of September.

What is the cheapest time of day to fly from MLI to IAD?

One of the essential ways to save on airfare from Moline to Washington, D.C. Dulles Intl Airport is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 17% on airfare.

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. 2 airlines have flights to Washington, D.C. Dulles Intl from Moline Quad-City on a regular basis.

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.

$126+ Flights from Moline to Washington, D.C. Dulles Intl Airport

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Cheap flight deals from Moline to Dulles Intl

Round-trip from	$249 (Delta)
One-way from	$126 (Delta)
Popular in	February
Cheapest in	December
Average price	$482

From Moline Quad-City to Washington, D.C. Dulles Intl

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One-way flight from Moline Quad-City to Washington, D.C. Dulles Intl

Search Deals

Highest demand for flights based on searches. 4% potential increase in price ($18 potential increase over avg. RT price).

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Cheapest flight prices on average. 3% potential price decrease ($16 potential savings vs. average RT price).

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Average for round-trip flights in July 2025

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Find 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 29, 2025.

Tue 10/215:04 pmMLI - IAD

1 stop5h 14mDelta

Sat 10/255:52 pmIAD - MLI

1 stop5h 28mDelta

Deal found 7/28

$249

Thu 8/1410:42 amMLI - IAD

2 stops12h 17mAmerican Airlines

Mon 8/187:25 pmIAD - MLI

1 stop4h 36mAmerican Airlines

Deal found 7/27

$259

Fri 10/246:30 amMLI - IAD

1 stop4h 25mUnited Airlines

Sun 10/266:30 amIAD - MLI

1 stop6h 20mUnited Airlines

Deal found 7/27

$266

Best flights from Moline to Dulles Intl
Discover carefully curated flight deals from Moline to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 29, 2025.

Tue 10/215:04 pmMLI - IAD

1 stop5h 14mDelta

Sat 10/255:52 pmIAD - MLI

1 stop5h 28mDelta

Deal found 7/29

$249

Thu 8/1410:42 amMLI - IAD

2 stops12h 17mAmerican Airlines

Mon 8/187:25 pmIAD - MLI

1 stop4h 36mAmerican Airlines

Deal found 7/27

$259

Fri 10/246:30 amMLI - IAD

1 stop4h 25mUnited Airlines

Sun 10/266:30 amIAD - MLI

1 stop6h 20mUnited Airlines

Deal found 7/27

$266

Last-minute flights from Moline to Dulles Intl
Discover last-minute flight deals from Moline to Dulles Intl. Data last updated July 29, 2025 and is based on user searches.

Fri 8/85:26 pmMLI - IAD

1 stop6h 08mDelta

Sun 8/103:37 pmIAD - MLI

1 stop7h 42mDelta

Deal found 7/28

$439

Fri 8/84:21 pmMLI - IAD

1 stop5h 35mAmerican Airlines

Sun 8/106:34 amIAD - MLI

2 stops11h 20mAmerican Airlines

Deal found 7/27

$484

Thu 8/1410:42 amMLI - IAD

2 stops12h 17mAmerican Airlines

Mon 8/187:25 pmIAD - MLI

1 stop4h 36mAmerican Airlines

Deal found 7/27

$259

Tue 8/194:59 pmMLI - IAD

1 stop5h 22mDelta

Sat 8/235:25 pmIAD - MLI

1 stop6h 23mDelta

Deal found 7/29

$249

Tue 8/195:31 pmMLI - IAD

1 stop6h 01mUnited Airlines

Wed 8/203:55 pmIAD - MLI

1 stop4h 32mUnited Airlines

Deal found 7/29

$321

One-way flights from Moline to Dulles Intl
Search for one-way flight options from Moline to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated July 29, 2025.

Sat 10/44:59 pmMLI - IAD

1 stop5h 18mDelta

Deal found 7/28

$126

Sat 10/46:30 amMLI - IAD

2 stops11h 17mAmerican Airlines

Deal found 7/28

$131

Sat 10/46:30 amMLI - IAD

2 stops13h 42mUnited Airlines

Deal found 7/28

$270

Thu 10/912:28 pmMLI - IAD

2 stops22h 16mMultiple Airlines

Deal found 7/28

$290

Cheapflights Fare Finder

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

MolineWashington, D.C.

MLI - IAD

MLIIAD

Moline Quad-City

Tue 10/21

5:04 pm-11:18 pm

1 stop5h 14m

Washington, D.C. Dulles Intl

Sat 10/25

5:52 pm-10:20 pm

1 stop5h 28m

$249

MolineWashington, D.C.

MLI - IAD

MLIIAD

Moline Quad-City

Thu 8/14

10:42 am-11:59 pm

2 stops12h 17m

Washington, D.C. Dulles Intl

Mon 8/18

7:25 pm-11:01 pm

1 stop4h 36m

$259

MolineWashington, D.C.

MLI - IAD

MLIIAD

Moline Quad-City

Fri 10/24

6:30 am-11:55 am

1 stop4h 25m

Washington, D.C. Dulles Intl

Sun 10/26

6:30 am-11:50 am

1 stop6h 20m

$266

MolineWashington, D.C.

MLI - IAD

MLIIAD

Moline Quad-City

Sat 10/4

4:59 pm-11:17 pm

1 stop5h 18m

$126

MolineWashington, D.C.

MLI - IAD

MLIIAD

Moline Quad-City

Sat 10/4

6:30 am-6:47 pm

2 stops11h 17m

$131

MolineWashington, D.C.

MLI - IAD

MLIIAD

Moline Quad-City

Sat 10/4

6:30 am-9:12 pm

2 stops13h 42m

$270

MolineWashington, D.C.

MLI - IAD

MLIIAD

Moline Quad-City

Thu 10/9

12:28 pm-11:44 am

2 stops22h 16m

$290

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

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.

Cheapflights Insights

Everything you need to know about your flight from Moline to Washington, D.C. Dulles Intl Airport

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

Currently, July is the cheapest month in which you can book a flight from Moline to Washington, D.C. Dulles Intl Airport (average of $306). Flying from Moline to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Dulles Intl

Read reviews from past customers who have flown Delta, United Airlines, and American 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.

Delta

8.0

Very good

7,977 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Delta

8.0

Very good

7,977 reviews

Delta

8.0

Very good

7,977 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

United Airlines

7.4

Good

8,899 reviews

Delta

8.0

Very good

7,977 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

7,977 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

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. 2 airlines have flights to Washington, D.C. Dulles Intl from Moline Quad-City on a regular basis.
What are the cheapest airlines flying from Moline to Washington, D.C. Dulles Intl Airport round-trip?
Delta, at $249, was found to be the cheapest airline from Moline to Washington, D.C. Dulles Intl Airport.Alternate airlines to your destination round-trip include American Airlines and United Airlines. You may be able to fly from Moline to Washington, D.C. Dulles Intl Airport for 43% less than the average price by searching for these airlines.
What are the cheapest airlines to fly from Moline to Washington, D.C. Dulles Intl Airport one-way?
The cheapest airlines for a one-way flight from Moline to Washington, D.C. Dulles Intl Airport are Delta ($126), American Airlines ($131), and United Airlines ($270).
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.
What is the cheapest month to book a flight from Moline to Washington, D.C. Dulles Intl Airport?
Currently, July is the cheapest month in which you can book a flight from Moline to Washington, D.C. Dulles Intl Airport (average of $306). Flying from Moline to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top 2 airlines flying from Moline to Dulles Intl

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$228	Average$283	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$268	Average$470	FlexibilityNo cancel fee	On-time69%

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$126+ Cheap flights from Moline (MLI) to Dulles Intl (IAD)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/4. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Moline to Dulles Intl with Cheapflights

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Cheap flight deals from Moline to Dulles Intl

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Find flight deals from Moline to Dulles Intl

Cheapest flights from Moline to Dulles IntlExplore 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 29, 2025.

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 29, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Moline to Washington, D.C. Dulles Intl Airport that are best for you.

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.

Cheapflights Insights

Everything you need to know about your flight from Moline to Washington, D.C. Dulles Intl Airport

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

Reviews of airlines servicing Dulles Intl

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?

What are the cheapest airlines flying from Moline to Washington, D.C. Dulles Intl Airport round-trip?

What are the cheapest airlines to fly from Moline to Washington, D.C. Dulles Intl Airport one-way?

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

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

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

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

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Moline to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from Moline to Dulles Intl

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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 29, 2025.