What is the cheapest airline that flies from Seattle/Tacoma Intl to Nantucket Island?

JetBlue, American Airlines, and Delta are the most popular carriers operating from Seattle/Tacoma Intl to Nantucket Island

When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Nantucket Island?

Prices for flights from Seattle/Tacoma Intl Airport to Nantucket Island are updated daily.

How old do you have to be to fly from Seattle/Tacoma Intl Airport to Nantucket Island?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Nantucket Island.

What documentation or ID do you need to fly to Nantucket Island?

The necessary travel and health documents for your Nantucket Island trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$187 Cheap Flights from Seattle to Nantucket Island in 2026

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Find the cheapest flights from Seattle to Nantucket Island

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:10 am - 5:35 pm

SEA

ACK

8h 25m

1 stop

5:13 pm - 1:01 am

ACK

SEA

10h 48m

1 stop

$322American Airlines

Sat, Aug 29 - Sun, Sep 6

10:19 pm - 11:12 am

SEA

ACK

9h 53m

1 stop

3:43 pm - 10:49 pm

ACK

SEA

10h 06m

1 stop

$449JetBlue

Tue, Aug 25 - Wed, Aug 26

6:10 am - 5:35 pm

SEA

ACK

8h 25m

1 stop

12:23 pm - 8:50 pm

ACK

SEA

11h 27m

2 stops

$455American Airlines

Sat, Aug 29 - Sun, Sep 6

10:19 pm - 11:12 am

SEA

ACK

9h 53m

1 stop

3:43 pm - 10:49 pm

ACK

SEA

10h 06m

1 stop

$576JetBlue

Tue, Aug 25 - Wed, Aug 26

12:34 am - 4:34 pm

SEA

ACK

13h 00m

2 stops

5:13 pm - 10:58 pm

ACK

SEA

8h 45m

1 stop

$583American Airlines

Wed, Aug 26 - Sun, Aug 30

11:55 pm - 2:34 pm

SEA

ACK

11h 39m

2 stops

12:23 pm - 8:50 pm

ACK

SEA

11h 27m

2 stops

$587American Airlines

Sat, Aug 29 - Sun, Sep 6

10:19 pm - 11:12 am

SEA

ACK

9h 53m

1 stop

3:43 pm - 10:49 pm

ACK

SEA

10h 06m

1 stop

$596JetBlue

Tue, Aug 25 - Wed, Aug 26

11:55 pm - 12:19 pm

SEA

ACK

9h 24m

1 stop

5:13 pm - 1:01 am

ACK

SEA

10h 48m

1 stop

$693American Airlines

Fri, Aug 28 - Sun, Aug 30

12:34 am - 4:34 pm

SEA

ACK

13h 00m

2 stops

10:29 am - 8:02 pm

ACK

SEA

12h 33m

2 stops

$723American Airlines

Wed, Aug 26 - Sun, Aug 30

11:41 pm - 10:25 am

SEA

ACK

7h 44m

1 stop

3:43 pm - 10:46 pm

ACK

SEA

10h 03m

1 stop

$815JetBlue

Thu, Aug 27 - Sun, Aug 30

American Airlines flights from Seattle to Nantucket Island

Our best American Airlines deals on Seattle to Nantucket Island flight tickets

American Airlines

Aug 29

SEA6:10 amSeattle/Tacoma Intl

8h 25m

1 stop

ACK5:35 pmNantucket Memorial

Sep 6

ACK5:13 pmNantucket Memorial

10h 48m

1 stop

SEA1:01 amSeattle/Tacoma Intl

$322

American Airlines

Aug 29

SEA6:10 amSeattle/Tacoma Intl

8h 25m

1 stop

ACK5:35 pmNantucket Memorial

Sep 6

ACK12:23 pmNantucket Memorial

11h 27m

2 stops

SEA8:50 pmSeattle/Tacoma Intl

$455

American Airlines

Aug 26

SEA12:34 amSeattle/Tacoma Intl

13h 00m

2 stops

ACK4:34 pmNantucket Memorial

Aug 30

ACK5:13 pmNantucket Memorial

8h 45m

1 stop

SEA10:58 pmSeattle/Tacoma Intl

$583

United Airlines flights from Seattle to Nantucket Island

Our best United Airlines deals on Seattle to Nantucket Island flight tickets

United Airlines

Aug 29

SEA7:35 pmSeattle/Tacoma Intl

15h 50m

2 stops

ACK2:25 pmNantucket Memorial

Sep 6

ACK4:32 pmNantucket Memorial

24h 50m

3 stops

SEA2:22 pmSeattle/Tacoma Intl

$843

United Airlines

Aug 25

SEA11:05 amSeattle/Tacoma Intl

19h 20m

2 stops

ACK9:25 amNantucket Memorial

Aug 26

ACK3:49 pmNantucket Memorial

10h 56m

1 stop

SEA11:45 pmSeattle/Tacoma Intl

$879

United Airlines

Aug 28

SEA8:38 amSeattle/Tacoma Intl

26h 47m

3 stops

ACK2:25 pmNantucket Memorial

Aug 30

ACK4:32 pmNantucket Memorial

20h 26m

2 stops

SEA9:58 amSeattle/Tacoma Intl

$1,043

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleNantucket

SEA - ACK

SEAACK

Seattle/Tacoma Intl

Sat 8/29

6:10 am-5:35 pm

1 stop8h 25m

Nantucket Memorial

Sun 9/6

5:13 pm-1:01 am

1 stop10h 48m

$322

SeattleNantucket

SEA - ACK

SEAACK

Seattle/Tacoma Intl

Tue 8/25

10:19 pm-11:12 am

1 stop9h 53m

Nantucket Memorial

Wed 8/26

3:43 pm-10:49 pm

1 stop10h 06m

$449

SeattleNantucket

SEA - ACK

SEAACK

Seattle/Tacoma Intl

Sat 8/29

6:10 am-5:35 pm

1 stop8h 25m

Nantucket Memorial

Sun 9/6

12:23 pm-8:50 pm

2 stops11h 27m

$455

SeattleNantucket

SEA - ACK

SEAACK

Seattle/Tacoma Intl

Tue 8/25

10:19 pm-11:12 am

1 stop9h 53m

Nantucket Memorial

Wed 8/26

3:43 pm-10:49 pm

1 stop10h 06m

$576

SeattleNantucket

SEA - ACK

SEAACK

Seattle/Tacoma Intl

Wed 8/26

12:34 am-4:34 pm

2 stops13h 00m

Nantucket Memorial

Sun 8/30

5:13 pm-10:58 pm

1 stop8h 45m

$583

SeattleNantucket

SEA - ACK

SEAACK

Seattle/Tacoma Intl

Sat 8/29

11:55 pm-2:34 pm

2 stops11h 39m

Nantucket Memorial

Sun 9/6

12:23 pm-8:50 pm

2 stops11h 27m

$587

SeattleNantucket

SEA - ACK

SEAACK

Seattle/Tacoma Intl

Tue 8/25

10:19 pm-11:12 am

1 stop9h 53m

Nantucket Memorial

Wed 8/26

3:43 pm-10:49 pm

1 stop10h 06m

$596

SeattleNantucket

SEA - ACK

SEAACK

Seattle/Tacoma Intl

Fri 8/28

11:55 pm-12:19 pm

1 stop9h 24m

Nantucket Memorial

Sun 8/30

5:13 pm-1:01 am

1 stop10h 48m

$693

SeattleNantucket

SEA - ACK

SEAACK

Seattle/Tacoma Intl

Wed 8/26

12:34 am-4:34 pm

2 stops13h 00m

Nantucket Memorial

Sun 8/30

10:29 am-8:02 pm

2 stops12h 33m

$723

Quickest round-trip

SeattleNantucket

SEA - ACK

SEAACK

Seattle/Tacoma Intl

Thu 8/27

11:41 pm-10:25 am

1 stop7h 44m

Nantucket Memorial

Sun 8/30

3:43 pm-10:46 pm

1 stop10h 03m

$815

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Seattle to Nantucket Island

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to Nantucket Island?

The month of October is another great option to travel to Nantucket Island, with average flight prices from Seattle averaging around $307.

What is the cheapest day to depart on your flight to Nantucket Island?

The cheapest day to depart from Seattle to Nantucket Island is on a Wednesday. Travelers who choose to depart for Nantucket Island on a Wednesday will often find tickets for as low as $361. Flights from Seattle to Nantucket Island on a Sunday will generally be more expensive and average around $456. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Nantucket Island?

The cheapest time of day to fly to Nantucket Island is at noon when flights can be purchased for as low as $232. Flights in the morning are often more expensive with an average ticket price of $435.

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

You are more likely to see cheaper flights to Nantucket Island from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Nantucket Island for around $382 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Nantucket Island from Seattle for as low as $329 on momondo.

Can stopping save me money on Seattle to Nantucket Island flights?

You could potentially save up to 8% on your flight if you consider stops on a Seattle to Nantucket Island flight.

Cheap Seattle to Nantucket Island flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Nantucket Island

Fastest flight time	9h 53m
Direct flights	None

The fastest flight from Seattle to Nantucket Island takes 9h 53m

There are no direct flights from Seattle to Nantucket Island. There are no popular flight routes from Seattle to Nantucket Island.

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Frequently asked questions about flying from Seattle to Nantucket Island

When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Nantucket Island?
Prices for flights from Seattle/Tacoma Intl Airport to Nantucket Island are updated daily.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to Nantucket Island?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Nantucket Island.
What documentation or ID do you need to fly to Nantucket Island?
The necessary travel and health documents for your Nantucket Island trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Seattle to Nantucket Island?
Based on momondo bookings for flights between Seattle and Nantucket Island, the leading plane model is Boeing 737-800 Passenger/BBJ2 (winglets), making up 16.98% of the total bookings. Other popular models include Airbus A321neo with 12.34%, Boeing 737 MAX 8 with 8.15%, and Boeing 787-9 Dreamliner with 7.59%.

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Nantucket Island?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Seattle to Nantucket Island. momondo saves you time and could save you money on your trip.

Can I find flights from Seattle to Nantucket Island with flexible booking policies on momondo?

Flights from Seattle to Nantucket Island with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Seattle to Nantucket Island?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Seattle to Nantucket Island.

I’m not ready to book a flight from Seattle to Nantucket Island right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Nantucket Island, momondo offers a useful price alert feature which will track prices for flights to Nantucket Island from Seattle and alert you when they change.