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Cheap flights from Nantucket to Washington, D.C. from $129

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Nantucket to Washington, D.C. departing on 8/19. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Nantucket to Washington, D.C.

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
2:03 pm - 10:55 pm
ACK
-
IAD
8h 52m
2 stops
American Airlines Logo
5:08 am - 3:11 pm
IAD
-
ACK
10h 03m
2 stops
$287American Airlines
Fri, Aug 28 - Sun, Aug 30
American Airlines Logo
12:56 pm - 10:05 pm
ACK
-
IAD
9h 09m
2 stops
American Airlines Logo
6:10 am - 3:11 pm
IAD
-
ACK
9h 01m
2 stops
$357American Airlines
Tue, Aug 4 - Fri, Aug 14
American Airlines Logo
3:38 pm - 12:10 am
ACK
-
IAD
8h 32m
2 stops
American Airlines Logo
1:23 pm - 11:07 am
IAD
-
ACK
21h 44m
2 stops
$421American Airlines
Tue, Aug 4 - Fri, Aug 14
United Airlines Logo
4:15 pm - 10:59 pm
ACK
-
IAD
6h 44m
1 stop
United Airlines Logo
8:35 am - 3:03 pm
IAD
-
ACK
6h 28m
1 stop
$456United Airlines
Wed, Aug 19 - Thu, Aug 20
United Airlines Logo
4:15 pm - 10:59 pm
ACK
-
IAD
6h 44m
1 stop
United Airlines Logo
8:35 am - 3:03 pm
IAD
-
ACK
6h 28m
1 stop
$466United Airlines
Wed, Aug 19 - Thu, Aug 20
United Airlines Logo
4:15 pm - 9:28 pm
ACK
-
IAD
5h 13m
1 stop
United Airlines Logo
10:15 pm - 3:03 pm
IAD
-
ACK
16h 48m
2 stops
$489United Airlines
Thu, Aug 27 - Mon, Aug 31
United Airlines Logo
4:15 pm - 10:59 pm
ACK
-
IAD
6h 44m
1 stop
United Airlines Logo
10:22 pm - 3:49 pm
IAD
-
ACK
17h 27m
2 stops
$504United Airlines
Thu, Aug 13 - Sat, Aug 15
United Airlines Logo
9:50 am - 4:35 pm
ACK
-
IAD
6h 45m
1 stop
United Airlines Logo
10:41 pm - 3:03 pm
IAD
-
ACK
16h 22m
1 stop
$505United Airlines
Thu, Aug 27 - Mon, Aug 31
United Airlines Logo
4:15 pm - 10:59 pm
ACK
-
IAD
6h 44m
1 stop
United Airlines Logo
10:41 pm - 9:12 am
IAD
-
ACK
10h 31m
1 stop
$510United Airlines
Thu, Aug 13 - Sat, Aug 15
United Airlines Logo
9:50 am - 4:35 pm
ACK
-
IAD
6h 45m
1 stop
United Airlines Logo
8:35 am - 3:03 pm
IAD
-
ACK
6h 28m
1 stop
$512United Airlines
Thu, Aug 27 - Mon, Aug 31

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American Airlines flights from Nantucket to Washington, D.C. Dulles Intl Airport

Our best American Airlines deals on Nantucket to Washington, D.C. Dulles Intl Airport flight tickets
American Airlines
Aug 28
ACK2:03 pmNantucket Memorial
8h 52m
2 stops
IAD10:55 pmWashington, D.C. Dulles Intl
Aug 30
IAD5:08 amWashington, D.C. Dulles Intl
10h 03m
2 stops
ACK3:11 pmNantucket Memorial
$287
American Airlines
Aug 4
ACK12:56 pmNantucket Memorial
9h 09m
2 stops
IAD10:05 pmWashington, D.C. Dulles Intl
Aug 14
IAD6:10 amWashington, D.C. Dulles Intl
9h 01m
2 stops
ACK3:11 pmNantucket Memorial
$357
American Airlines
Aug 4
ACK3:38 pmNantucket Memorial
8h 32m
2 stops
IAD12:10 amWashington, D.C. Dulles Intl
Aug 14
IAD1:23 pmWashington, D.C. Dulles Intl
21h 44m
2 stops
ACK11:07 amNantucket Memorial
$421

United Airlines flights from Nantucket to Washington, D.C. Dulles Intl Airport

Our best United Airlines deals on Nantucket to Washington, D.C. Dulles Intl Airport flight tickets
United Airlines
Aug 19
ACK4:15 pmNantucket Memorial
6h 44m
1 stop
IAD10:59 pmWashington, D.C. Dulles Intl
Aug 20
IAD8:35 amWashington, D.C. Dulles Intl
6h 28m
1 stop
ACK3:03 pmNantucket Memorial
$456
United Airlines
Aug 19
ACK4:15 pmNantucket Memorial
6h 44m
1 stop
IAD10:59 pmWashington, D.C. Dulles Intl
Aug 20
IAD8:35 amWashington, D.C. Dulles Intl
6h 28m
1 stop
ACK3:03 pmNantucket Memorial
$466
United Airlines
Aug 27
ACK4:15 pmNantucket Memorial
5h 13m
1 stop
IAD9:28 pmWashington, D.C. Dulles Intl
Aug 31
IAD10:15 pmWashington, D.C. Dulles Intl
16h 48m
2 stops
ACK3:03 pmNantucket Memorial
$489

momondo Fare Finder

 
Customize your flight search to find flights from Nantucket to Washington, D.C. Dulles Intl Airport 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 July 23, 2026.
Use the filters below to find and compare flights from Nantucket to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

NantucketWashington, D.C.

ACK - IAD

ACKIAD

Nantucket Memorial

Fri 8/28

2:03 pm-10:55 pm

2 stops8h 52m

Washington, D.C. Dulles Intl

Sun 8/30

5:08 am-3:11 pm

2 stops10h 03m

$287

NantucketWashington, D.C.

ACK - IAD

ACKIAD

Nantucket Memorial

Tue 8/4

12:56 pm-10:05 pm

2 stops9h 09m

Washington, D.C. Dulles Intl

Fri 8/14

6:10 am-3:11 pm

2 stops9h 01m

$357

NantucketWashington, D.C.

ACK - IAD

ACKIAD

Nantucket Memorial

Tue 8/4

3:38 pm-12:10 am

2 stops8h 32m

Washington, D.C. Dulles Intl

Fri 8/14

1:23 pm-11:07 am

2 stops21h 44m

$421
Quickest round-trip

NantucketWashington, D.C.

ACK - IAD

ACKIAD

Nantucket Memorial

Wed 8/19

4:15 pm-10:59 pm

1 stop6h 44m

Washington, D.C. Dulles Intl

Thu 8/20

8:35 am-3:03 pm

1 stop6h 28m

$456

NantucketWashington, D.C.

ACK - IAD

ACKIAD

Nantucket Memorial

Wed 8/19

4:15 pm-10:59 pm

1 stop6h 44m

Washington, D.C. Dulles Intl

Thu 8/20

8:35 am-3:03 pm

1 stop6h 28m

$466

NantucketWashington, D.C.

ACK - IAD

ACKIAD

Nantucket Memorial

Thu 8/27

4:15 pm-9:28 pm

1 stop5h 13m

Washington, D.C. Dulles Intl

Mon 8/31

10:15 pm-3:03 pm

2 stops16h 48m

$489

NantucketWashington, D.C.

ACK - IAD

ACKIAD

Nantucket Memorial

Thu 8/13

4:15 pm-10:59 pm

1 stop6h 44m

Washington, D.C. Dulles Intl

Sat 8/15

10:22 pm-3:49 pm

2 stops17h 27m

$504

NantucketWashington, D.C.

ACK - IAD

ACKIAD

Nantucket Memorial

Thu 8/27

9:50 am-4:35 pm

1 stop6h 45m

Washington, D.C. Dulles Intl

Mon 8/31

10:41 pm-3:03 pm

1 stop16h 22m

$505

NantucketWashington, D.C.

ACK - IAD

ACKIAD

Nantucket Memorial

Thu 8/13

4:15 pm-10:59 pm

1 stop6h 44m

Washington, D.C. Dulles Intl

Sat 8/15

10:41 pm-9:12 am

1 stop10h 31m

$510

NantucketWashington, D.C.

ACK - IAD

ACKIAD

Nantucket Memorial

Thu 8/27

9:50 am-4:35 pm

1 stop6h 45m

Washington, D.C. Dulles Intl

Mon 8/31

8:35 am-3:03 pm

1 stop6h 28m

$512

Flights are sorted by cheapest round-trip flights first.

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See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from Nantucket to Washington, D.C. Dulles Intl Airport

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 Washington, D.C. Dulles Intl Airport?

Our data shows that Friday is the least expensive day to fly to Washington, D.C. Dulles Intl Airport. Tickets to fly out on this day can be as low as $389. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Nantucket to Washington, D.C. Dulles Intl Airport for around $630.

What is the cheapest time of day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Flying to Washington, D.C. Dulles Intl Airport from Nantucket in the morning is the least expensive time of day to depart. momondo users have found prices as low as $445 when looking at flights departing in the morning. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $621 on average. Flights to Washington, D.C. Dulles Intl Airport from Nantucket at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

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

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

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

Fastest flight time

5h 13m

Direct flights

None
The fastest flight from Nantucket to Washington, D.C. Dulles Intl Airport takes 5h 13m
There are no direct flights from Nantucket to Washington, D.C. Dulles Intl Airport. There are no popular flight routes from Nantucket to Washington, D.C. Dulles Intl Airport.
Search flight deals

Frequently asked questions about flying from Nantucket to Washington, D.C. Dulles Intl Airport

  • How far is Nantucket Memorial to Washington, D.C. Dulles Intl by plane?

    The distance between Nantucket Memorial and Washington, D.C. Dulles Intl is about 420.0 mi. Typically, this will take 5h 13m by plane in normal conditions.

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

    Prices for flights from Nantucket Memorial Airport to Washington, D.C. Dulles Intl Airport were last updated today.

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

  • What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?

    The travel and health documents required for your trip to Washington, D.C. Dulles Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Washington, D.C. Dulles Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
National Harbor
Arlington
Gettysburg
Winchester
Waldorf
Laurel
Woodbridge
Fredericksburg
Gaithersburg
Linthicum Heights
Rockville
Manassas
Towson
Silver Spring
Colonial Beach
Sterling
Springfield
Tysons
Fairfax

Why use momondo?

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

Finding the right flight to Washington, D.C. from Nantucket is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Washington, D.C. quick and easy, saving you time and money.

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

Flights from Nantucket to Washington, D.C. 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 Nantucket to Washington, D.C.?

Once all potential Nantucket to Washington, D.C. flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Yes momondo offers price alerts on flights to Washington, D.C. from Nantucket. 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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