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Nantucket

Cheap flights from Seattle to Nantucket (SEA - ACK)

SEA — ACK
Dec 12 — Dec 191
Fri 12/12
Fri 12/19
1 adult, Economy
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Cheap flight deals from Seattle to Nantucket

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) 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 November 12, 2025.

Most accurate provider

Expedia
2 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$1,540
(Mytrip)

Popular in

December

Cheapest in

January

Average price

$358
Provider with most accurate pricing for Seattle/Tacoma Intl-Nantucket Memorial flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Nantucket Memorial flights.
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From Seattle/Tacoma Intl to Nantucket Memorial
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Highest demand for flights based on searches. 2% potential increase in price ($9 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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  • Most accurate provider: When it comes to deals on Seattle-Nantucket flights, users find the pricing of Expedia to be most consistent on Cheapflights vs. Expedia Users can find the same prices on Seattle-Nantucket flight deals on Cheapflights vs. Expedia 90-95% of the time. Price accuracy is based on data collected from Seattle-Nantucket flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-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 Seattle-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 Seattle to Nantucket

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

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

Currently, January is the cheapest month in which you can book a flight from Seattle to Nantucket (average of $98). Flying from Seattle to Nantucket in August is currently the most expensive (average of $178). 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 Nantucket

Get insights into the airlines that provide service to Nantucket. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Nantucket. Reviews last updated November 12, 2025.
Get a feel of what it's like to fly with JetBlue from Seattle to Nantucket by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
JetBlue
7.2
Good
2,906 reviews

Overall

7.2

Boarding

7.4

Crew

8.0

Entertainment

7.3

Comfort

7.6

Food

6.7

Reviews

1 / 20
10.0
Excellent

JACK,Sep 2025

JFK - MSY

I liked the professional services of the crew. Keep up the good work.
JetBlue
7.2
Good
2,906 reviews
JetBlue
7.2
Good
2,906 reviews

Overall

7.2

Boarding

7.4

Crew

8.0

Entertainment

7.3

Comfort

7.6

Food

6.7

Reviews

1 / 20
10.0
Excellent

JACK,Sep 2025

JFK - MSY

I liked the professional services of the crew. Keep up the good work.

Related info for your journey

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

  • What is the cheapest airline to fly from Seattle to Nantucket round-trip?

    Currently priced at $465, JetBlue will fly you from Seattle to Nantucket and back. In addition to JetBlue, many other airlines offer competitively priced options for your trip.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Seattle to Nantucket (average of $98). Flying from Seattle to Nantucket in August is currently the most expensive (average of $178). 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.

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Top airline flying from Seattle to Nantucket

Discover the top airline that operate flights from Seattle to Nantucket. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$465Average$619FlexibilityNo cancel feeOn-time62%

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