$1,060+ Cheap flights from Seattle (SEA) to Nantucket Island
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 11/20. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — ACK
Dec 6 — Dec 131
1 adult, Economy
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Cheapest flights from Seattle to Nantucket IslandExplore the most affordable flight options available from Seattle to Nantucket Island. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 6, 2025.
Explore the most affordable flight options available from Seattle to Nantucket Island. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 6, 2025.
This Mytrip deal was found by Cheapflights users on 11/5. 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.
Thu 11/206:24 pmSEA - ACK
3 stops33h 05mMultiple Airlines
Mon 11/246:49 amACK - SEA
2 stops13h 32mMultiple Airlines
Deal found 11/5![Multiple Airlines logo]()
$1,060
Cheap flight deals from Seattle to Nantucket Island
Keep the following information in mind while searching for Seattle to Nantucket Island flight deals. Data was last updated November 6, 2025.
Most accurate provider | CheapOair 3 stars |
|---|---|
Most trusted provider | CheapOair 3 stars |
Round-trip from | $1,060 (Mytrip) |
Popular in | December |
Cheapest in | January |
Average price | $307 |
Cheapflights Fare Finder
Customize your flight search to find flights from Seattle to Nantucket Island 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 November 6, 2025.
Use the filters below to find and compare flights from Seattle to Nantucket Island that are best for you.
Fly from
Seattle
Fly to
Nantucket Island
Route
Depart
Return
Price
SeattleNantucket
SEA - ACK
SEAACK
Seattle/Tacoma Intl
Thu 11/20
6:24 pm-6:29 am
3 stops33h 05m
Nantucket Memorial
Mon 11/24
6:49 am-5:21 pm
2 stops13h 32m
$1,060
Best time to book a flight from Seattle to Nantucket Island
Have a flexible travel schedule? Discover the best time to fly to Nantucket Island 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 Island
No data available for this route at this time. Please check back soon.
Reviews of airlines servicing Nantucket Island
Get insights into the airlines that provide service to Nantucket Island. 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 Island. Reviews last updated November 6, 2025.
Read reviews from past customers who have flown JetBlue from Seattle to Nantucket Island. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.0
Food
6.7
Overall
7.2
Comfort
7.6
Boarding
7.4
Entertainment
7.3
Reviews
1 / 20
10.0
ExcellentJACK,Sep 2025
JFK - MSY
Crew
8.0
Food
6.7
Overall
7.2
Comfort
7.6
Boarding
7.4
Entertainment
7.3
Reviews
1 / 20
10.0
ExcellentJACK,Sep 2025
JFK - MSY
Related info for your journey
Find useful and relevant information for your journey from Seattle to Nantucket Island. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Seattle to Nantucket Island
See prices for flight routes from nearby airports that may be better suited for you.
Top airline flying from Seattle to Nantucket Island
Discover the top airline that operate flights from Seattle to Nantucket Island. 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 6, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$465 | Average$619 | FlexibilityNo cancel fee | On-time62% |