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$391+ Cheap flights from Baltimore to Nantucket (BWI - ACK)

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 7/19. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — ACK
Feb 19 — Feb 261
Thu 2/19
Thu 2/26
1 adult, Economy
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Cheap flight deals from Baltimore to Nantucket

Cheapest flights from Baltimore to Nantucket
Explore the most affordable flight options available from Baltimore to Nantucket. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 20, 2026.

This Mytrip deal was found by Cheapflights users on 1/19. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/41:00 pm
BWI
-
ACK
2 stops20h 25m
Multiple Airlines
Sun 2/81:30 pm
ACK
-
BWI
2 stops19h 01m
Multiple Airlines
Deal found 1/19$654
This Mytrip deal was found by Cheapflights users on 1/18. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/211:30 am
BWI
-
ACK
2 stops21h 55m
Multiple Airlines
Fri 2/67:00 am
ACK
-
BWI
2 stops25h 31m
Multiple Airlines
Deal found 1/18$674
This Kiwi.com deal was found by Cheapflights users on 1/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/172:21 pm
BWI
-
ACK
1 stop4h 03m
Multiple Airlines
Sun 4/195:30 pm
ACK
-
BWI
1 stop22h 22m
Multiple Airlines
Deal found 1/19$854
This United Airlines deal was found by Cheapflights users on 1/18. 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.
Sat 7/47:10 pm
BWI
-
ACK
1 stop19h 19m
United Airlines
Wed 7/84:15 pm
ACK
-
BWI
3 stops21h 42m
United Airlines
Deal found 1/18$862
This Kiwi.com deal was found by Cheapflights users on 1/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/82:21 pm
BWI
-
ACK
1 stop4h 03m
Multiple Airlines
Sun 5/106:45 pm
ACK
-
BWI
2 stops21h 07m
Multiple Airlines
Deal found 1/19$979

Find flight deals from Baltimore to Nantucket

Discover tips and strategies to find the most affordable flight options for your journey from Baltimore (BWI) to Nantucket (ACK). 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 January 20, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$654
(Mytrip)

One-way from

$391
(Kiwi.com)

Popular in

October

Cheapest in

February

Average price

$197
Provider with most accurate pricing for Baltimore/Washington-Nantucket Memorial flight deals.
Search Deals
Provider most trusted by Cheapflights users for Baltimore/Washington-Nantucket Memorial flights.
Search Deals
From Baltimore/Washington to Nantucket Memorial
Search Deals
One-way flight from Baltimore/Washington to Nantucket Memorial
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($22 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Baltimore 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, Cheapflights users made 2,558,603 searches. Data last updated January 20, 2026.
Use the filters below to find and compare flights from Baltimore to Nantucket that are best for you.

Fly from

Baltimore

Fly to

Nantucket

Route

Depart

Return

Price

BaltimoreNantucket

BWI - ACK

BWIACK

Baltimore/Washington

Wed 2/4

1:00 pm-9:25 am

2 stops20h 25m

Nantucket Memorial

Sun 2/8

1:30 pm-8:31 am

2 stops19h 01m

$654

BaltimoreNantucket

BWI - ACK

BWIACK

Baltimore/Washington

Mon 2/2

11:30 am-9:25 am

2 stops21h 55m

Nantucket Memorial

Fri 2/6

7:00 am-8:31 am

2 stops25h 31m

$674

BaltimoreNantucket

BWI - ACK

BWIACK

Baltimore/Washington

Fri 4/17

2:21 pm-6:24 pm

1 stop4h 03m

Nantucket Memorial

Sun 4/19

5:30 pm-3:52 pm

1 stop22h 22m

$854

BaltimoreNantucket

BWI - ACK

BWIACK

Baltimore/Washington

Sun 7/19

6:00 am-6:57 pm

1 stop12h 57m

$391

BaltimoreNantucket

BWI - ACK

BWIACK

Baltimore/Washington

Fri 6/12

7:10 pm-2:29 pm

1 stop19h 19m

$453

BaltimoreNantucket

BWI - ACK

BWIACK

Baltimore/Washington

Fri 6/12

8:44 pm-6:57 pm

3 stops22h 13m

$554

BaltimoreNantucket

BWI - ACK

BWIACK

Baltimore/Washington

Sun 7/19

9:35 am-6:05 pm

2 stops8h 30m

$560

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/20

Compare providers for flights from Baltimore to Nantucket

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 Baltimore to Nantucket in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*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 Baltimore-Nantucket flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Baltimore-Nantucket flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Baltimore-Nantucket flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Baltimore-Nantucket flights, Cheapflights users trust Expedia the most. Expedia 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 Baltimore-Nantucket 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 Baltimore to Nantucket

Have a flexible travel schedule? Discover the best time to fly to Nantucket from Baltimore 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 Baltimore to Nantucket

What is the cheapest month to book a flight from Baltimore to Nantucket?

Currently, March is the cheapest month in which you can book a flight from Baltimore to Nantucket (average of $44). Flying from Baltimore to Nantucket in December is currently the most expensive (average of $117). 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.

Related info for your journey

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

  • Can I find deals for flights from Baltimore to Nantucket that include hotel bookings?

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

  • How can I find direct flights from Baltimore to Nantucket?

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

  • Can I find deals for business class flights from Baltimore to Nantucket?

    Yes. Cheapflights offers flight deals from Baltimore to Nantucket 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 Baltimore to Nantucket?

    Currently, March is the cheapest month in which you can book a flight from Baltimore to Nantucket (average of $44). Flying from Baltimore to Nantucket in December is currently the most expensive (average of $117). 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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