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Cheap flights from Washington, D.C. Dulles Intl Airport to Boston from $375

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. Dulles Intl Airport to Boston departing on 10/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Washington, D.C. Dulles Intl Airport to Boston

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
8:50 am - 2:00 pmIAD-ACK
5h 10m1 stop
Multiple Airlines Logo
7:00 am - 4:20 pmACK-IAD
9h 20m1 stop
$1,074Multiple Airlines
Find Deal
Mon, Oct 20 - Sat, Oct 25
Multiple Airlines Logo
12:51 pm - 4:49 pmIAD-ACK
3h 58m1 stop
Multiple Airlines Logo
11:40 am - 9:25 pmACK-IAD
9h 45m1 stop
$1,096Multiple Airlines
Find Deal
Sat, Nov 1 - Mon, Nov 3
Multiple Airlines Logo
8:50 am - 5:40 pmIAD-ACK
8h 50m1 stop
Multiple Airlines Logo
4:54 pm - 8:52 pmACK-IAD
3h 58m1 stop
$1,164Multiple Airlines
Find Deal
Sat, Oct 18 - Mon, Oct 20
Multiple Airlines Logo
12:51 pm - 5:54 pmIAD-ACK
5h 03m1 stop
Multiple Airlines Logo
6:49 am - 9:25 pmACK-IAD
14h 36m1 stop
$1,616Multiple Airlines
Find Deal
Tue, Nov 25 - Sat, Nov 29
Multiple Airlines Logo
9:00 am - 8:40 pmIAD-ACK
11h 40m1 stop
Multiple Airlines Logo
4:54 pm - 9:25 pmACK-IAD
4h 31m1 stop
$1,650Multiple Airlines
Find Deal
Wed, Nov 26 - Sat, Nov 29

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Dulles Intl Airport to Nantucket 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, momondo users made 832,500 searches. Data last updated October 8, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Nantucket that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Nantucket

IAD - ACK

IADACK

Washington, D.C. Dulles Intl

Mon 10/20

8:50 am-2:00 pm

1 stop5h 10m

Nantucket Memorial

Sat 10/25

7:00 am-4:20 pm

1 stop9h 20m

$1,074

Washington, D.C.Nantucket

IAD - ACK

IADACK

Washington, D.C. Dulles Intl

Sat 11/1

12:51 pm-4:49 pm

1 stop3h 58m

Nantucket Memorial

Mon 11/3

11:40 am-9:25 pm

1 stop9h 45m

$1,096

Washington, D.C.Nantucket

IAD - ACK

IADACK

Washington, D.C. Dulles Intl

Sat 10/18

8:50 am-5:40 pm

1 stop8h 50m

Nantucket Memorial

Mon 10/20

4:54 pm-8:52 pm

1 stop3h 58m

$1,164

Washington, D.C.Nantucket

IAD - ACK

IADACK

Washington, D.C. Dulles Intl

Tue 11/25

12:51 pm-5:54 pm

1 stop5h 03m

Nantucket Memorial

Sat 11/29

6:49 am-9:25 pm

1 stop14h 36m

$1,616

Washington, D.C.Nantucket

IAD - ACK

IADACK

Washington, D.C. Dulles Intl

Wed 11/26

9:00 am-8:40 pm

1 stop11h 40m

Nantucket Memorial

Sat 11/29

4:54 pm-9:25 pm

1 stop4h 31m

$1,650

Washington, D.C.Nantucket

IAD - ACK

IADACK

Washington, D.C. Dulles Intl

Wed 10/15

8:50 am-6:29 am

2 stops21h 39m

$375

Washington, D.C.Nantucket

IAD - ACK

IADACK

Washington, D.C. Dulles Intl

Mon 10/13

9:36 pm-7:41 am

3 stops34h 05m

$441

Washington, D.C.Nantucket

IAD - ACK

IADACK

Washington, D.C. Dulles Intl

Mon 10/13

9:36 pm-2:01 pm

2 stops16h 25m

$464

Washington, D.C.Nantucket

IAD - ACK

IADACK

Washington, D.C. Dulles Intl

Sat 10/18

12:35 pm-6:29 am

2 stops17h 54m

$500

Washington, D.C.Nantucket

IAD - ACK

IADACK

Washington, D.C. Dulles Intl

Sat 10/18

12:35 pm-10:10 am

1 stop21h 35m

$528

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Washington, D.C. Dulles Intl Airport to Nantucket

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Nantucket?

The cheapest day to depart on your flight to Nantucket is on a Tuesday when prices can be found for as low as $214. This is often the case because there is less demand to fly during this day of the week. On the other hand, Thursday is the most expensive day to depart from Washington, D.C. Dulles Intl Airport because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $413.

What is the cheapest time of day to depart on your flight to Nantucket?

In the afternoon is the cheapest time of day to fly from Washington, D.C. Dulles Intl Airport to Nantucket when you can find flight prices for as low as $258. Flying to Nantucket in the afternoon is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $334 on average. Flights to Nantucket from Washington, D.C. Dulles Intl Airport in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

When to book flights from Washington, D.C. Dulles Intl Airport to Nantucket

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. Dulles Intl Airport to Nantucket according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Washington, D.C. Dulles Intl Airport to Nantucket (IAD to ACK) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Dulles Intl Airport to Nantucket

Direct flights

None
There are no direct flights from Washington, D.C. Dulles Intl Airport to Nantucket. There are no popular flight routes from Washington, D.C. Dulles Intl Airport to Nantucket.
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  • How far is Washington, D.C. Dulles Intl to Nantucket Memorial by plane?

    A flight from Washington, D.C. Dulles Intl to Nantucket Memorial will travel around 420.0 mi. By plane, this route typically takes 3h 58m.

  • When did momondo last update prices for flights from Washington, D.C. Dulles Intl Airport to Nantucket Memorial Airport?

    Prices for flights from Washington, D.C. Dulles Intl Airport to Nantucket Memorial Airport refresh daily.

  • How old do you have to be to fly from Washington, D.C. Dulles Intl Airport to Nantucket Memorial Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. Dulles Intl Airport to Nantucket Memorial Airport.

  • What documentation or ID do you need to fly to Nantucket Memorial Airport?

    The necessary travel and health documents for your Nantucket Memorial Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Nantucket?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Nantucket from Washington, D.C..

Can I find flights from Washington, D.C. to Nantucket with flexible booking policies on momondo?

Flights from Washington, D.C. to Nantucket with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Washington, D.C. to Nantucket?

momondo helps you find the best flight between Washington, D.C. and Nantucket by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Washington, D.C. to Nantucket right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Nantucket from Washington, D.C.. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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