SEA - ACK

Find cheap flights from Seattle to Nantucket

1 adult
1 adult, Economy, 0 bags

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

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Nantucket, 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, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
Multiple Airlines
Fri 1/30
SEA - ACK • multi-stop
Cheapest one-way
Multiple Airlines
Fri 1/30
SEA - ACK • multi-stop
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Nantucket!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Seattle to Nantucket (SEA-ACK)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to Nantucket 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

Multiple Airlines Logo
SEA
-
ACK
2565 mimulti-stop
Multiple Airlines Logo
ACK
-
SEA
2565 mimulti-stop
Multiple Airlines
Booking Insights

KAYAK's insights & trends for Seattle to Nantucket flights

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

What is the most popular layover airport when flying from Seattle to Nantucket?

Percentage of 1-stop round-trip flights from Seattle to Nantucket chosen by KAYAK users via each layover airport in the last 12 months (only includes trips with the same layover airport on both legs).

Chicago (ORD) is the top choice – 57% of KAYAK users who clicked on 1-stop flights from Seattle to Nantucket picked an itinerary connecting there.

What is the cheapest layover airport when flying from Seattle to Nantucket?

Average round-trip price for 1-stop flights from Seattle to Nantucket clicked by KAYAK users in the last 12 months (only includes trips with the same layover airport on both legs).

Flights via Boston (BOS) offer the most affordable fares, with an average round-trip price of $465.

Which layover airport offers the shortest total travel time from Seattle to Nantucket?

Shortest average total travel time for 1-stop one-way flights from Seattle to Nantucket via different layover airports, based on KAYAK user data from the last 12 months.

Consider flying via New York (JFK) for the shortest journey. The average one-way travel time for flights connecting there is 10h 35m.

Which layover airport has the quickest connection when flying from Seattle to Nantucket?

Average layover duration at different layover airports for 1-stop one-way flights from Seattle to Nantucket, based on KAYAK user data from the last 12 months.

If you prefer a quick connection, New York (JFK) often has the shortest layovers from Seattle to Nantucket, with an average of 2h 40m.

Find deals

When to book flights from Seattle to Nantucket

Are your dates flexible? Find out the best times to travel from Seattle to Nantucket based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Seattle to Nantucket

  • Do I need a passport to fly between Seattle and Nantucket?

    No

  • Which aircraft models fly most regularly from Seattle to Nantucket?

    We unfortunately don’t have that data for this specific route.

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

    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.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Nantucket from Seattle 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?

    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 to Nantucket with an airline and back to Seattle with another airline. Booking your flights between Seattle and ACK can sometimes prove cheaper using this method.

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

    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 to Nantucket from Seattle 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

 
See real verified KAYAK customer reviews for airlines flying from Seattle to Nantucket. 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? 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.
7.2
JetBlueOverall score based on 2891 reviews
8.0Crew
7.2Entertainment
7.4Boarding
6.6Food
7.5Comfort
Airline reviews

Terrible. They canceled our early morning flight after midnight on the day of and had no available flights to rebook my family on for the next 72 hours. Yet they still had other flights that were not cancelled from JFK so it couldn’t be based on the weather. It felt like they canceled the flight based on it not being profitable enough for them. I am not interested in traveling with the again. The absolute worse customer service and lack of accountability.

2.0 MediocreAnonymous, Jan 2026
JFK - BNA
Read more JetBlue reviews

Terrible. They canceled our early morning flight after midnight on the day of and had no available flights to rebook my family on for the next 72 hours. Yet they still had other flights that were not cancelled from JFK so it couldn’t be based on the weather. It felt like they canceled the flight based on it not being profitable enough for them. I am not interested in traveling with the again. The absolute worse customer service and lack of accountability.

Horribly rude check in at airport, worst in 25 years of flying. All over a simple issue they could have googled to resolve.

First time flying with JetBlue and never again. I went to the counter to request meet and assist because I'm 74 and my wife is 79. I walk with a cane and my wife is handicapped and has her own wheel chair. I told the agent that my wife and luggage was at the entrance door. The ticketing agent said to me that they don't offer meet and assist. I need to bring them our luggage and then go back and get my wife in order to get my boarding pass. As I went back to get my luggage a Southwest agent along with a TSA agent recognized the situation and came over and took my wife and luggage to the JetBlue ticketing counter alongside the line and told the JetBlue agent to issue to take our luggage as soon as they could.

1) No pilot available for 1 hour 2) no room for most passengers careyon in overhead—-> stowed below 3) when we landed we had to wait 45 min. Before docking at gate as gate was not ready

It was good. I prefer JB over other airlines.I just wish we had headphones for the films, but other than that - good.

we were delayed because of some safety check that wasn't done or available

The ride share experience in JFK is terrible. After traveling on a flight, then you need to take a subway to the last stop to get an uber or lyft. Unacceptable. Bad job JetBlue for permitting JFK and Port Authority to do this to your passengers.

The flight was two hours late due to a computer fault and resulting maintenance. Nothing was offered as compensation beyond bottles of water during the time we were deplaned and waiting in the terminal.

Very pleasant flight attendants. Gate crew rather loud chatting with each other.

Four plus hour flight delay in New York caused us to take off after 11:30pm. We didn’t arrive at our hotel until five hours after check in. Started the trip off feeling exhausted.

Everything you need to know for your flight from Seattle to Nantucket

Information on your arrival and departure airports

Seattle (SEA)
Nantucket (ACK)