$174 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 7/13. 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, 0 bags

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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Flight Deals

Book Cheap Seattle to Nantucket Island Plane Tickets

 
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, Aug 25 - Sat, Aug 29
JetBlue Logo
11:44 pm - 1:03 pm
SEA
-
ACK
10h 19m
1 stop
JetBlue Logo
3:43 pm - 10:49 pm
ACK
-
SEA
10h 06m
1 stop
$340JetBlue
Mon, Aug 31 - Wed, Sep 9
JetBlue Logo
11:44 pm - 10:22 am
SEA
-
ACK
7h 38m
1 stop
JetBlue Logo
11:25 am - 8:42 pm
ACK
-
SEA
12h 17m
1 stop
$349JetBlue
Tue, Jul 14 - Mon, Jul 20
JetBlue Logo
10:19 pm - 11:12 am
SEA
-
ACK
9h 53m
1 stop
JetBlue Logo
3:33 pm - 10:54 pm
ACK
-
SEA
10h 21m
1 stop
$366JetBlue
Tue, Sep 1 - Wed, Sep 9
JetBlue Logo
11:44 pm - 10:22 am
SEA
-
ACK
7h 38m
1 stop
JetBlue Logo
11:25 am - 8:42 pm
ACK
-
SEA
12h 17m
1 stop
$380JetBlue
Mon, Aug 31 - Thu, Sep 10
JetBlue Logo
11:44 pm - 1:03 pm
SEA
-
ACK
10h 19m
1 stop
JetBlue Logo
3:30 pm - 10:38 pm
ACK
-
SEA
10h 08m
1 stop
$399JetBlue
Tue, Aug 25 - Sat, Aug 29
JetBlue Logo
11:44 pm - 1:03 pm
SEA
-
ACK
10h 19m
1 stop
JetBlue Logo
3:43 pm - 10:49 pm
ACK
-
SEA
10h 06m
1 stop
$407JetBlue
Tue, Aug 25 - Sat, Aug 29
JetBlue Logo
11:44 pm - 1:03 pm
SEA
-
ACK
10h 19m
1 stop
JetBlue Logo
3:43 pm - 10:49 pm
ACK
-
SEA
10h 06m
1 stop
$416JetBlue
Tue, Aug 25 - Sat, Aug 29
JetBlue Logo
11:44 pm - 1:03 pm
SEA
-
ACK
10h 19m
1 stop
JetBlue Logo
3:43 pm - 10:49 pm
ACK
-
SEA
10h 06m
1 stop
$426JetBlue
Tue, Sep 1 - Thu, Sep 10
JetBlue Logo
11:44 pm - 10:22 am
SEA
-
ACK
7h 38m
1 stop
JetBlue Logo
3:30 pm - 10:38 pm
ACK
-
SEA
10h 08m
1 stop
$430JetBlue
Sun, Aug 30 - Wed, Sep 9
JetBlue Logo
11:44 pm - 10:22 am
SEA
-
ACK
7h 38m
1 stop
JetBlue Logo
11:25 am - 8:42 pm
ACK
-
SEA
12h 17m
1 stop
$452JetBlue
Booking Insights

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.

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

The average price for all round-trip flights from Seattle to Nantucket Island depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Nantucket Island is generally in the afternoon, when round-trip flights cost $254 on average. Morning departures are around 22% 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 $473.

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 $528, prices are generally cheapest when you fly direct.

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 Wednesdays 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 Monday 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 4 weeks before departure, which saves you about 41% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 5 weeks before departure.

Find deals

Good to know

Low seasonJanuary
Cheapest flight$174
Best time to beat the crowds with an average 2% drop in price.
Most popular time to fly and prices are also 22% lower on average.
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.

Reviews of the 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.
7.1
JetBlueOverall score based on 2987 reviews
7.2Entertainment
7.3Boarding
7.5Comfort
7.9Crew
6.6Food
Airline reviews

JetBlue worker, Blythe, was so amazing at the DCA counter. If it wasn’t for her, I’m not sure we would’ve made it through. Please thank her!

10.0 ExcellentAnonymous, Jun 2026
DCA - BOS
Read more JetBlue reviews

JetBlue worker, Blythe, was so amazing at the DCA counter. If it wasn’t for her, I’m not sure we would’ve made it through. Please thank her!

The flight out was delayed from 3:40pm to 5pm and again to 8pm. We boarded after 5pm, had to disembark because they could not get the Engine started, then we switched gates and got a new plane and did not board until after 8pm.

My bag was not loaded on my flight. it was not communicated to me until i was waiting for my bag at my destination. there was no confirmation of when my bag was arriving and no way to track it.

The flight was delayed for more than 3 hours the flight attendant was so angry, it was my first flight with JetBlue but i don’t think I flight with them again.

This was the first flight I've taken since pre-pandemic. I was pleased with how orderly the boarding and disembarking went. The seats were comfortable. I loved that there was no "first class'. The attendants and passengers I met were all very friendly and welcoming.

Boarding was extremely slow and disorganized. Onboard crew was unfriendly.

There was a screen but no earphones that could use the older input so I could listen to anything.

Jet blue just had great service overall! Only a little turbulence heading out of Austin, otherwise the jet stream helped the speed of the trip!

Boarding was quick and efficient. The flight crew were friendly. There were limited food options available on the flight. The pocket guide said there would be salad and sandwich sections available on flights over 3.5 hours. The only food available were snack boxes. And those were limited as well. My flight was over 5 hours. The entertainment system worked well. I had both extra legroom seats and regular coach seats. The seats were not very comfortable. The entertainment controls in the armrest made it difficult to rest my arm without changing the channel on my neighbors TV. Overall, my experience was mediocre.

Boarding was fast, easy, and we landed early. The entertainment system was very buggy and kept resetting throughout the flight.

Everything you need to know for your flight to Nantucket Island

Information on your arrival and departure airports

Seattle (SEA)