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 time of day to fly from LOE to IAD?

When flying from Nantucket Island to Washington, D.C. Dulles Intl Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

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

How can I find direct flights from Nantucket Island to Dulles Intl?

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

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

Yes. Cheapflights offers flight deals from Nantucket Island 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.

$561+ Flights from Nantucket Island to Washington, D.C. Dulles Intl Airport

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Cheap flight deals from Nantucket Island to Dulles Intl

Cheapest flights from Nantucket Island to Dulles Intl
Explore the most affordable flight options available from Nantucket Island to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 28, 2026.

Wed 6/103:49 pm

ACK

IAD

1 stop4h 44m

United Airlines

Fri 6/1210:05 pm

IAD

ACK

2 stops16h 24m

United Airlines

Deal found 1/27

$561

Tue 7/144:15 pm

ACK

IAD

1 stop6h 45m

United Airlines

Wed 7/156:00 am

IAD

ACK

1 stop3h 56m

United Airlines

Deal found 1/26

$566

Best flights from Nantucket Island to Dulles Intl
Discover carefully curated flight deals from Nantucket Island to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated January 28, 2026.

Wed 6/103:49 pm

ACK

IAD

1 stop4h 44m

United Airlines

Fri 6/1210:25 pm

IAD

ACK

2 stops16h 04m

United Airlines

Deal found 1/27

$561

Tue 7/144:15 pm

ACK

IAD

1 stop4h 18m

United Airlines

Wed 7/156:00 am

IAD

ACK

1 stop3h 56m

United Airlines

Deal found 1/25

$566

One-way flights from Nantucket Island to Dulles Intl
Search for one-way flight options from Nantucket Island to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated January 28, 2026.

Thu 5/147:00 am

ACK

IAD

2 stops16h 59m

Multiple Airlines

Deal found 1/26

$841

Find flight deals from Nantucket Island to Dulles Intl

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$561 (United Airlines)
Popular in	November
Cheapest in	March
Average price	$192

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From Nantucket Island to Washington, D.C. Dulles Intl

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Highest demand for flights based on searches. 11% potential increase in price ($27 potential increase over avg. RT price).

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Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).

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Average for round-trip flights in January 2026

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

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NantucketWashington, D.C.

ACK - IAD

ACKIAD

Nantucket Memorial

Wed 6/10

3:49 pm-8:33 pm

1 stop4h 44m

Washington, D.C. Dulles Intl

Fri 6/12

10:25 pm-2:29 pm

2 stops16h 04m

$561

NantucketWashington, D.C.

ACK - IAD

ACKIAD

Nantucket Memorial

Tue 7/14

4:15 pm-8:33 pm

1 stop4h 18m

Washington, D.C. Dulles Intl

Wed 7/15

6:00 am-9:56 am

1 stop3h 56m

$566

NantucketWashington, D.C.

ACK - IAD

ACKIAD

Nantucket Memorial

Thu 5/14

7:00 am-11:59 pm

2 stops16h 59m

$841

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/26

Best time to book a flight from Nantucket Island to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Nantucket Island with our price prediction graph.

Estimated round-trip price

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

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Related info for your journey

How long is the flight from Nantucket Island to Washington, D.C. Dulles Intl Airport?
Airlines like United Airlines fly from Nantucket Island to Washington, D.C. Dulles Intl Airport in about 4h 44m. The time it takes to get you to your destination can typically vary by up to . There are 421 mi between Nantucket Island and Washington, D.C. Dulles Intl Airport.
Can I find deals for flights from Nantucket Island to Dulles Intl that include hotel bookings?
Yes. In addition to deals on Nantucket Island to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Nantucket Island to Dulles Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Nantucket Island to Dulles Intl.
Can I find deals for business class flights from Nantucket Island to Dulles Intl?
Yes. Cheapflights offers flight deals from Nantucket Island 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.

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$561+ Cheap flights from Nantucket Island 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 6/10. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Nantucket Island to Dulles Intl with Cheapflights

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Cheap flight deals from Nantucket Island to Dulles Intl

Cheapest flights from Nantucket Island to Dulles IntlExplore the most affordable flight options available from Nantucket Island to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 28, 2026.

Explore the most affordable flight options available from Nantucket Island to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 28, 2026.

Find flight deals from Nantucket Island to Dulles Intl

Keep the following information in mind while searching for Nantucket Island to Dulles Intl flight deals. Data was last updated January 28, 2026.

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Round-trip from

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

Best time to book a flight from Nantucket Island to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Nantucket Island with our price prediction graph.

Cheapflights Insights

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

Related info for your journey

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

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

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

How can I find direct flights from Nantucket Island to Dulles Intl?

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

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

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Cheapest flights from Nantucket Island to Dulles Intl
Explore the most affordable flight options available from Nantucket Island to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 28, 2026.