HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Nantucket

$568+ Cheap flights from Seattle to Nantucket (SEA - ACK)

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 8/28. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — ACK
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Seattle to Nantucket with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 February 20, 2025.

Most accurate provider

Priceline
1 star

Most trusted provider

Priceline
3 stars

Round-trip from

$722
(JetBlue)
Provider with most accurate pricing for Seattle/Tacoma Intl-Nantucket Memorial flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Nantucket Memorial flights.
Search Deals
From Seattle/Tacoma Intl to Nantucket Memorial
Search Deals

Find flight deals from Seattle to Nantucket

Cheapest flights from Seattle to Nantucket
Explore the most affordable flight options available from Seattle to Nantucket. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 20, 2025.

This JetBlue deal was found by Cheapflights users on 2/19. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2811:25 pmSEA - ACK
1 stop9h 28mJetBlue
Tue 9/212:50 pmACK - SEA
1 stop10h 43mJetBlue
Deal found 2/19$568
This American Airlines deal was found by Cheapflights users on 2/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2811:58 pmSEA - ACK
2 stops12h 03mAmerican Airlines
Tue 9/24:21 pmACK - SEA
1 stop8h 19mAmerican Airlines
Deal found 2/19$589
This Trip.com deal was found by Cheapflights users on 2/19. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/511:30 pmSEA - ACK
1 stop14h 36mMultiple Airlines
Sat 4/121:51 pmACK - SEA
1 stop23h 37mMultiple Airlines
Deal found 2/19$854
This United Airlines deal was found by Cheapflights users on 2/20. 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.
Fri 7/1112:30 amSEA - ACK
1 stop10h 58mUnited Airlines
Sat 7/263:15 pmACK - SEA
1 stop30h 44mUnited Airlines
Deal found 2/20$892

Find flights from Seattle to Nantucket within your budget

Customize your flight search to find flights from Seattle 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 February 20, 2025.

Fly from

Seattle

Fly to

Nantucket

Route

Depart

Return

Price

SeattleNantucket

SEA - ACK

SEAACK

Seattle/Tacoma Intl

Sat 7/12

11:25 pm-11:53 am

1 stop9h 28m

Nantucket Memorial

Sat 7/26

12:45 pm-8:33 pm

1 stop10h 48m

$722

SeattleNantucket

SEA - ACK

SEAACK

Seattle/Tacoma Intl

Sat 7/12

11:42 pm-3:01 pm

1 stop12h 19m

Nantucket Memorial

Sat 7/26

12:10 pm-8:42 pm

2 stops11h 32m

$748

SeattleNantucket

SEA - ACK

SEAACK

Seattle/Tacoma Intl

Sat 4/5

11:30 pm-5:06 pm

1 stop14h 36m

Nantucket Memorial

Sat 4/12

1:51 pm-10:28 am

1 stop23h 37m

$854

SeattleNantucket

SEA - ACK

SEAACK

Seattle/Tacoma Intl

Fri 7/11

12:30 am-2:28 pm

1 stop10h 58m

Nantucket Memorial

Sat 7/26

3:15 pm-6:59 pm

1 stop30h 44m

$892

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Compare providers for flights from Seattle 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 Seattle to Nantucket in February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars

*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 Seattle-Nantucket flights, users find the pricing of Priceline to be most consistent on Cheapflights vs. Priceline Users can find the same prices on Seattle-Nantucket flight deals on Cheapflights vs. Priceline <90% 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 Priceline the most. Priceline 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.

Travel insights for flights from Seattle to Nantucket

Get recent, data-driven insights about flights from Seattle to Nantucket including ideal travel times, pricing trends, and more.

Rainfall in Nantucket by month

Plan your trip to Nantucket by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Nantucket ranges from 1.6 - 4.3 inches per month. January is typically the wettest month, when rainfall can reach 4.3 in. June is typically the driest time to visit Nantucket when rainfall is around 1.6 in.

Temperature in Nantucket by month

Plan your trip to Nantucket by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Nantucket, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of February, when temperatures are typically at their lowest (around 32.0 F).

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 February 20, 2025.
JetBlue
7.4
Good
3,070 reviews

Food

6.8

Boarding

7.6

Comfort

7.7

Overall

7.4

Crew

8.1

Entertainment

7.3

Reviews

1 / 20

4.0
Okay

Anonymous,Feb 2025

BOS - SFO

Flight was delayed an hour due to a flight plan issue. Then additional fuel was needed. The crew did communicate well. Upon departure there was not food available for purchase, at least not by the time they got to row 23. Wifi didn't work consistently. Not the normal Jetblue experience. The Captain and crew were great though.

JetBlue
7.4
Good
3,070 reviews
JetBlue
7.4
Good
3,070 reviews

Food

6.8

Boarding

7.6

Comfort

7.7

Overall

7.4

Crew

8.1

Entertainment

7.3

Reviews

1 / 20

4.0
Okay

Anonymous,Feb 2025

BOS - SFO

Flight was delayed an hour due to a flight plan issue. Then additional fuel was needed. The crew did communicate well. Upon departure there was not food available for purchase, at least not by the time they got to row 23. Wifi didn't work consistently. Not the normal Jetblue experience. The Captain and crew were great though.

United Airlines
7.4
Good
8,765 reviews
JetBlue
7.4
Good
3,070 reviews

Food

6.8

Boarding

7.6

Comfort

7.7

Overall

7.4

Crew

8.1

Entertainment

7.3

Reviews

1 / 20

4.0
Okay

Anonymous,Feb 2025

BOS - SFO

Flight was delayed an hour due to a flight plan issue. Then additional fuel was needed. The crew did communicate well. Upon departure there was not food available for purchase, at least not by the time they got to row 23. Wifi didn't work consistently. Not the normal Jetblue experience. The Captain and crew were great though.

American Airlines
7.2
Good
10,000 reviews
JetBlue
7.4
Good
3,070 reviews

Food

6.8

Boarding

7.6

Comfort

7.7

Overall

7.4

Crew

8.1

Entertainment

7.3

Reviews

1 / 20

4.0
Okay

Anonymous,Feb 2025

BOS - SFO

Flight was delayed an hour due to a flight plan issue. Then additional fuel was needed. The crew did communicate well. Upon departure there was not food available for purchase, at least not by the time they got to row 23. Wifi didn't work consistently. Not the normal Jetblue experience. The Captain and crew were great though.

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 are the cheapest airlines flying from Seattle to Nantucket round-trip?

    Currently priced at $722, JetBlue will fly you from Seattle to Nantucket and back. In addition to JetBlue, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from American Airlines and United Airlines - these airlines can fly you to your destination from $748 and $892, respectively.

  • 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Seattle to Nantucket

See prices for flight routes from nearby airports that may be better suited for you.
Seattle to Boston flights
Portland to Boston flights
Seattle to Hartford flights
Seattle to Albany flights
Portland to Albany flights
Portland to Hartford flights
Spokane to Boston flights
Bellingham to Boston flights
Seattle to West Tisbury flights
Spokane to Albany flights
Pasco to Boston flights
Yakima to Boston flights
Pasco to Hartford flights
Spokane to Hartford flights
Seattle to Hyannis flights
Pullman to Boston flights
Walla Walla to Boston flights
Pullman to Albany flights
Portland to West Tisbury flights
Bellingham to Hartford flights
Yakima to Hartford flights
Yakima to Albany flights
Seattle to Provincetown flights
Portland to Nantucket flights
Portland to New Bedford flights
Portland to Hyannis flights
Portland to Provincetown flights

Top 2 airlines flying from Seattle to Nantucket

Discover the top 2 airlines 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 February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$438Average$474FlexibilityNo cancel feeOn-time71%
JetBlueCheapest$557Average$752FlexibilityNo cancel feeOn-time62%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.