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Nantucket

$235+ Cheap flights from Seattle to Nantucket (SEA - 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 7/11. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — ACK
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June 12, 2025.

Round-trip from

$349
(JetBlue)

One-way from

$235
(JetBlue)

Popular in

August

Cheapest in

January

Average price

$458
From Seattle/Tacoma Intl to Nantucket Memorial
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One-way flight from Seattle/Tacoma Intl to Nantucket Memorial
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Highest demand for flights based on searches. 17% potential increase in price ($74 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($11 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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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 June 12, 2025.

This American Airlines deal was found by Cheapflights users on 6/12. 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.
Tue 8/1911:30 pmSEA - ACK
2 stops10h 41mAmerican Airlines
Tue 8/261:41 pmACK - SEA
2 stops12h 59mAmerican Airlines
Deal found 6/12$251
This JetBlue deal was found by Cheapflights users on 6/10. 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.
Tue 7/159:13 pmSEA - ACK
1 stop10h 16mJetBlue
Mon 7/213:08 pmACK - SEA
1 stop9h 56mJetBlue
Deal found 6/10$349
This Delta deal was found by Cheapflights users on 6/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1911:55 pmSEA - ACK
2 stops11h 51mDelta
Tue 8/263:26 pmACK - SEA
1 stop10h 49mDelta
Deal found 6/12$379
This United Airlines deal was found by Cheapflights users on 6/12. 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.
Tue 8/197:34 pmSEA - ACK
2 stops11h 45mUnited Airlines
Tue 8/2611:00 amACK - SEA
3 stops14h 52mUnited Airlines
Deal found 6/12$559
This JetBlue Airways deal was found by Cheapflights users on 6/10. 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 Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/911:40 pmSEA - ACK
1 stop10h 35mMultiple Airlines
Sun 9/1412:45 pmACK - SEA
1 stop24h 34mMultiple Airlines
Deal found 6/10$725

Cheapflights Fare Finder

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 June 12, 2025.
Use the filters below to find and compare flights from Seattle to Nantucket that are best for you.

Fly from

Seattle

Fly to

Nantucket

Route

Depart

Return

Price

SeattleNantucket

SEA - ACK

SEAACK

Seattle/Tacoma Intl

Tue 8/19

11:30 pm-1:11 pm

2 stops10h 41m

Nantucket Memorial

Tue 8/26

1:41 pm-11:40 pm

2 stops12h 59m

$251

SeattleNantucket

SEA - ACK

SEAACK

Seattle/Tacoma Intl

Tue 7/15

9:13 pm-10:29 am

1 stop10h 16m

Nantucket Memorial

Mon 7/21

3:08 pm-10:04 pm

1 stop9h 56m

$349

SeattleNantucket

SEA - ACK

SEAACK

Seattle/Tacoma Intl

Tue 8/19

11:55 pm-2:46 pm

2 stops11h 51m

Nantucket Memorial

Tue 8/26

3:26 pm-11:15 pm

1 stop10h 49m

$379

SeattleNantucket

SEA - ACK

SEAACK

Seattle/Tacoma Intl

Tue 8/19

7:34 pm-10:19 am

2 stops11h 45m

Nantucket Memorial

Tue 8/26

11:00 am-10:52 pm

3 stops14h 52m

$559

SeattleNantucket

SEA - ACK

SEAACK

Seattle/Tacoma Intl

Tue 9/9

11:40 pm-1:15 pm

1 stop10h 35m

Nantucket Memorial

Sun 9/14

12:45 pm-10:19 am

1 stop24h 34m

$725

SeattleNantucket

SEA - ACK

SEAACK

Seattle/Tacoma Intl

Fri 7/11

11:20 pm-11:53 am

1 stop9h 33m

$235

SeattleNantucket

SEA - ACK

SEAACK

Seattle/Tacoma Intl

Sat 7/12

7:00 am-10:28 am

2 stops24h 28m

$325

SeattleNantucket

SEA - ACK

SEAACK

Seattle/Tacoma Intl

Fri 7/11

11:59 pm-6:30 am

3 stops27h 31m

$489

SeattleNantucket

SEA - ACK

SEAACK

Seattle/Tacoma Intl

Fri 7/11

12:59 am-3:50 pm

2 stops11h 51m

$730

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

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

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 June 12, 2025.
Delta
8.0
Very good
7,950 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
6.0
Good

Colin,Sep 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good
Delta
8.0
Very good
7,950 reviews
Delta
8.0
Very good
7,950 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
6.0
Good

Colin,Sep 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good
United Airlines
7.4
Good
8,790 reviews
Delta
8.0
Very good
7,950 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
6.0
Good

Colin,Sep 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good
JetBlue
7.3
Good
2,925 reviews
Delta
8.0
Very good
7,950 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
6.0
Good

Colin,Sep 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,950 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
6.0
Good

Colin,Sep 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good

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 $349, 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 United Airlines and American Airlines - these airlines can fly you to your destination from $583 and $590, respectively.

  • What are the cheapest airlines to fly from Seattle to Nantucket one-way?

    The cheapest airline one-way is JetBlue, with whom users have recently found tickets for as low as $235. However, be on the lookout for offers from United Airlines and American Airlines, as they are both options that can get you from Seattle to Nantucket for a low price.

  • 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.

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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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$465Average$709FlexibilityNo cancel feeOn-time62%

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