$235 Find Cheap Flights from Seattle to Nantucket Island

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Nantucket Island departing on 7/11. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Nantucket Island

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Nantucket Island, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Nantucket Island, as well as popular online travel agencies
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Best Nantucket Island Flight Deals from Seattle

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Boston
Bostonnonstop$197
Boston
Bostonnonstop$197

Cheap Flights from Seattle to Nantucket Island

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to Nantucket Island that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Seattle to Nantucket Island

Tue, Jul 15 - Mon, Jul 21
JetBlue Logo
9:13 pm - 10:29 amSEA-ACK
10h 16m1 stop
JetBlue Logo
3:08 pm - 10:04 pmACK-SEA
9h 56m1 stop
$349JetBlue
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Thu, Aug 7 - Tue, Aug 12
American Airlines Logo
12:45 am - 4:36 pmSEA-ACK
12h 51m2 stops
American Airlines Logo
4:25 pm - 10:26 pmACK-SEA
9h 01m1 stop
$590American Airlines
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Thu, Aug 7 - Tue, Aug 12
American Airlines Logo
12:45 am - 4:36 pmSEA-ACK
12h 51m2 stops
American Airlines Logo
1:41 pm - 11:40 pmACK-SEA
12h 59m2 stops
$595American Airlines
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Fri, Aug 8 - Tue, Aug 12
JetBlue Logo
9:50 pm - 10:29 amSEA-ACK
9h 39m1 stop
JetBlue Logo
3:10 pm - 10:10 pmACK-SEA
10h 00m1 stop
$628JetBlue
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Tue, Jul 15 - Mon, Jul 21
American Airlines Logo
11:56 pm - 1:08 pmSEA-ACK
10h 12m2 stops
American Airlines Logo
12:14 pm - 10:55 pmACK-SEA
13h 41m2 stops
$702American Airlines
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Tue, Sep 9 - Mon, Sep 15
JetBlue Logo
11:40 pm - 1:15 pmSEA-ACK
10h 35m1 stop
JetBlue Logo
4:10 pm - 10:10 pmACK-SEA
9h 00m1 stop
$710JetBlue
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Tue, Sep 9 - Mon, Sep 15
United Airlines Logo
11:15 pm - 10:19 amSEA-ACK
8h 04m1 stop
United Airlines Logo
4:05 pm - 9:43 amACK-SEA
20h 38m2 stops
$712United Airlines
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Wed, Aug 20 - Sun, Aug 24
American Airlines Logo
12:45 am - 4:36 pmSEA-ACK
12h 51m2 stops
American Airlines Logo
1:38 pm - 10:55 pmACK-SEA
12h 17m2 stops
$719American Airlines
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Tue, Sep 9 - Sun, Sep 14
Logo
11:40 pm - 1:15 pmSEA-ACK
10h 35m1 stop
Logo
12:45 pm - 10:19 amACK-SEA
24h 34m1 stop
$725
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Fri, Aug 8 - Tue, Aug 12
Delta Logo
11:59 pm - 2:42 pmSEA-ACK
11h 43m2 stops
Delta Logo
12:06 pm - 10:07 pmACK-SEA
13h 01m2 stops
$733Delta
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KAYAK's insights & trends for Seattle to Nantucket Island flights

Get data-powered insights and trends into flights from Seattle to Nantucket Island to help you find the cheapest flights, the best time to fly and much more.

Can I save money by flying with a layover from Seattle to Nantucket Island?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $1,043, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from Seattle to Nantucket Island?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seattle to Nantucket Island, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Seattle to Nantucket Island is January, when tickets cost $217 (return) on average. On the other hand, the most expensive months are August and July, when the average cost of round-trip tickets is $481 and $471 respectively.

What’s the cheapest day of the week to fly from Seattle to Nantucket Island?

The average price of all round-trip flights from Seattle to Nantucket Island clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Seattle to Nantucket Island, look for departures on Tuesdays and avoid leaving on a Sunday, as it's usually the priciest day. When flying back from Nantucket Island, Wednesday is the cheapest day to fly and Sunday is the most expensive.

How far in advance should I book a flight from Seattle to Nantucket Island?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Seattle to Nantucket Island, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Seattle to Nantucket Island, you should book around 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 14 weeks before departure.

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Good to know

Low seasonFebruary
High seasonAugust
Cheapest flight$235
Best time to beat the crowds with an average 22% drop in price.
Most popular time to fly with an average 33% increase in price.
Flight from Seattle to Nantucket

FAQs - booking Nantucket Island flights

  • How does KAYAK find such low prices on flights from Seattle to Nantucket Island?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Seattle to Nantucket Island.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Seattle to Nantucket Island?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Seattle to Nantucket Island is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Seattle to Nantucket Island?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Seattle to Nantucket Island with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Seattle to Nantucket Island?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Seattle to Nantucket Island up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Nantucket Island?

    The cheapest time of day to fly to Nantucket Island is generally in the evening, when round-trip flights cost $347 on average. Morning departures are around 28% more expensive than evening flights, on average. The most expensive time of day to fly to Nantucket Island is generally in the morning, which is peak travel time and where the average cost of a ticket is $443.

Top airline flying from Seattle to Nantucket Island

 
See real verified KAYAK customer reviews for airlines flying from Seattle to Nantucket Island. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Seattle to Nantucket Island? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.3
JetBlueOverall score based on 2925 reviews
7.5Boarding
6.7Food
8.0Crew
7.6Comfort
7.3Entertainment
Airline reviews

Communication since no reason or explanation was given for 3 hrs delay

2.0 MediocreLana, Jun 2025HPN - PBI
Read more JetBlue reviews

Communication since no reason or explanation was given for 3 hrs delay

Flight was delayed several 3 hours - no reason was given and no communication what so ever.

No overhead baggage room even though I was seated in row 2. Consequently had to check in my carry on bag. Baggage carousel was jammed. Took 45 min to get my bag.

Excellent. Although they used to greet me as a mosaic member and provide a free drink, early boarding helps me to keep coming back to JetBlue.

Great flight. Departed early, arrived early. However they were out of meals for sale. Also, we arrived early and the gate was not available so we sat on the taxiway for quite a while (not JetBlue’s fault).

Cancelled flight with no specific instructions to get a boarding pass for another flight. The whole flight of people were in line for an hour because there was only 1 person to help at the desk. This was unusual for JetBlue.

It was too hot in the cabin. The AC did not help.

Except for the 28 minute delay leaving and the earlier reschedule to a later takeoff time the flight was good.

Loved the leg room and tvs screens on the seats and free WiFi. Wish the price was lower and could save by rebooking

It took 1-1/2 hours to get our luggage after we landed. That to me is unacceptable

Everything you need to know for your flight to Nantucket Island

Information on your arrival and departure airports

Seattle (SEA)

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