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Nantucket Island

$393+ Cheap flights from Seattle (SEA) to Nantucket Island

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 7/7. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — ACK
Jun 23 — Jun 301
Mon 6/23
Mon 6/30
1 adult, Economy
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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 June 18, 2025.

Round-trip from

$407
(Delta)

One-way from

$393
(JetBlue)

Popular in

August

Cheapest in

January

Average price

$463
From Seattle/Tacoma Intl to Nantucket Island
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One-way flight from Seattle/Tacoma Intl to Nantucket Island
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Highest demand for flights based on searches. 16% potential increase in price ($69 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 Island

Cheapest flights from Seattle to Nantucket Island
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 June 18, 2025.

This Delta deal was found by Cheapflights users on 6/15. 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.
Mon 8/411:50 pmSEA - ACK
2 stops11h 52mDelta
Fri 8/84:45 pmACK - SEA
2 stops19h 50mDelta
Deal found 6/15$407
This American Airlines deal was found by Cheapflights users on 6/17. 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.
Fri 8/1512:45 amSEA - ACK
2 stops12h 50mAmerican Airlines
Tue 8/1912:24 pmACK - SEA
2 stops12h 36mAmerican Airlines
Deal found 6/17$423
This JetBlue deal was found by Cheapflights users on 6/16. 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 6/16$424
This United Airlines deal was found by Cheapflights users on 6/15. 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.
Wed 7/911:45 pmSEA - ACK
2 stops12h 40mUnited Airlines
Sat 7/124:32 pmACK - SEA
1 stop10h 27mUnited Airlines
Deal found 6/15$464
This JetBlue Airways deal was found by Cheapflights users on 6/17. 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 9/145:10 pmACK - SEA
1 stop20h 09mMultiple Airlines
Deal found 6/17$694

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 June 18, 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

Mon 8/4

11:50 pm-2:42 pm

2 stops11h 52m

Nantucket Memorial

Fri 8/8

4:45 pm-9:35 am

2 stops19h 50m

$407

SeattleNantucket

SEA - ACK

SEAACK

Seattle/Tacoma Intl

Fri 8/15

12:45 am-4:35 pm

2 stops12h 50m

Nantucket Memorial

Tue 8/19

12:24 pm-10:00 pm

2 stops12h 36m

$423

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

$424

SeattleNantucket

SEA - ACK

SEAACK

Seattle/Tacoma Intl

Wed 7/9

11:45 pm-3:25 pm

2 stops12h 40m

Nantucket Memorial

Sat 7/12

4:32 pm-11:59 pm

1 stop10h 27m

$464

SeattleNantucket

SEA - ACK

SEAACK

Seattle/Tacoma Intl

Tue 9/9

11:40 pm-1:15 pm

1 stop10h 35m

Nantucket Memorial

Sun 9/14

5:10 pm-10:19 am

1 stop20h 09m

$694

SeattleNantucket

SEA - ACK

SEAACK

Seattle/Tacoma Intl

Mon 7/7

9:13 pm-10:29 am

1 stop10h 16m

$393

SeattleNantucket

SEA - ACK

SEAACK

Seattle/Tacoma Intl

Mon 7/7

5:10 pm-11:18 am

2 stops15h 08m

$435

SeattleNantucket

SEA - ACK

SEAACK

Seattle/Tacoma Intl

Mon 7/7

11:56 pm-1:08 pm

2 stops10h 12m

$447

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/15

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

Rainfall in Nantucket Island by month

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

In terms of precipitation, rainfall in Nantucket Island 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 Island when rainfall is around 1.6 in.

Temperature in Nantucket Island by month

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

If weather is an important factor for your trip to Nantucket Island, 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 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 June 18, 2025.
Delta
8.0
Very good
7,964 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

Entertainment

7.9

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
7,964 reviews
Delta
8.0
Very good
7,964 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

Entertainment

7.9

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
8,810 reviews
Delta
8.0
Very good
7,964 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

Entertainment

7.9

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
2,924 reviews
Delta
8.0
Very good
7,964 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

Entertainment

7.9

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
7,964 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

Entertainment

7.9

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 Island. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Seattle to Nantucket Island?

    Most people fly from Seattle/Tacoma Intl (SEA) if they book a flight from Seattle to Nantucket Island. Seattle/Tacoma Intl is conveniently located just 11.4 mi from Seattle’s city center.

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

    One-way options have recently been found by users for as low as $393 on JetBlue. Other airlines that offer cheap prices include United Airlines from $435 and American Airlines from $447 one-way.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Seattle to Nantucket Island 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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