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

JetBlue 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.

$316 Cheap Flights from Seattle to Nantucket Island in 2026

1 adult

0 bags

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

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.

11:44 pm - 1:03 pm

SEA

ACK

10h 19m

1 stop

12:06 pm - 9:04 pm

ACK

SEA

11h 58m

1 stop

$574JetBlue

Tue, Sep 1 - Sat, Sep 5

10:19 pm - 11:12 am

SEA

ACK

9h 53m

1 stop

12:06 pm - 9:04 pm

ACK

SEA

11h 58m

1 stop

$575JetBlue

Tue, Sep 1 - Sat, Sep 5

11:44 pm - 10:22 am

SEA

ACK

7h 38m

1 stop

12:02 pm - 9:04 pm

ACK

SEA

12h 02m

1 stop

$592JetBlue

Mon, Aug 24 - Wed, Aug 26

11:44 pm - 1:03 pm

SEA

ACK

10h 19m

1 stop

12:06 pm - 9:04 pm

ACK

SEA

11h 58m

1 stop

$599JetBlue

Tue, Sep 1 - Sat, Sep 5

11:44 pm - 1:03 pm

SEA

ACK

10h 19m

1 stop

3:43 pm - 10:49 pm

ACK

SEA

10h 06m

1 stop

$617JetBlue

Wed, Aug 19 - Sat, Aug 22

11:59 pm - 1:33 pm

SEA

ACK

10h 34m

2 stops

2:53 pm - 11:59 pm

ACK

SEA

12h 06m

2 stops

$638American Airlines

Wed, Aug 19 - Sat, Aug 22

11:44 pm - 10:22 am

SEA

ACK

7h 38m

1 stop

12:02 pm - 9:04 pm

ACK

SEA

12h 02m

1 stop

$642JetBlue

Mon, Aug 24 - Wed, Aug 26

11:44 pm - 1:03 pm

SEA

ACK

10h 19m

1 stop

3:43 pm - 10:49 pm

ACK

SEA

10h 06m

1 stop

$648JetBlue

Thu, Jul 30 - Mon, Aug 3

11:16 pm - 1:33 pm

SEA

ACK

11h 17m

2 stops

12:52 pm - 8:57 pm

ACK

SEA

11h 05m

1 stop

$698American Airlines

Wed, Aug 19 - Sat, Aug 22

11:44 pm - 10:24 am

SEA

ACK

7h 40m

1 stop

11:20 am - 10:49 pm

ACK

SEA

14h 29m

1 stop

$703JetBlue

Mon, Jun 15 - Sun, Jun 21

American Airlines flights from Seattle to Nantucket Island

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

American Airlines

Aug 19

SEA11:59 pmSeattle/Tacoma Intl

10h 34m

2 stops

ACK1:33 pmNantucket Memorial

Aug 22

ACK2:53 pmNantucket Memorial

12h 06m

2 stops

SEA11:59 pmSeattle/Tacoma Intl

$638

American Airlines

Aug 19

SEA11:16 pmSeattle/Tacoma Intl

11h 17m

2 stops

ACK1:33 pmNantucket Memorial

Aug 22

ACK12:52 pmNantucket Memorial

11h 05m

1 stop

SEA8:57 pmSeattle/Tacoma Intl

$698

American Airlines

Jul 24

SEA11:22 pmSeattle/Tacoma Intl

11h 38m

2 stops

ACK2:00 pmNantucket Memorial

Aug 8

ACK3:36 pmNantucket Memorial

10h 23m

1 stop

SEA10:59 pmSeattle/Tacoma Intl

$789

JetBlue flights from Seattle to Nantucket Island

Our best JetBlue deals on Seattle to Nantucket Island flight tickets

JetBlue

Sep 1

SEA11:44 pmSeattle/Tacoma Intl

10h 19m

1 stop

ACK1:03 pmNantucket Memorial

Sep 5

ACK12:06 pmNantucket Memorial

11h 58m

1 stop

SEA9:04 pmSeattle/Tacoma Intl

$574

JetBlue

Sep 1

SEA10:19 pmSeattle/Tacoma Intl

9h 53m

1 stop

ACK11:12 amNantucket Memorial

Sep 5

ACK12:06 pmNantucket Memorial

11h 58m

1 stop

SEA9:04 pmSeattle/Tacoma Intl

$575

JetBlue

Aug 24

SEA11:44 pmSeattle/Tacoma Intl

7h 38m

1 stop

ACK10:22 amNantucket Memorial

Aug 26

ACK12:02 pmNantucket Memorial

12h 02m

1 stop

SEA9:04 pmSeattle/Tacoma Intl

$592

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleNantucket

SEA - ACK

SEAACK

Seattle/Tacoma Intl

Tue 9/1

11:44 pm-1:03 pm

1 stop10h 19m

Nantucket Memorial

Sat 9/5

12:06 pm-9:04 pm

1 stop11h 58m

$574

SeattleNantucket

SEA - ACK

SEAACK

Seattle/Tacoma Intl

Tue 9/1

10:19 pm-11:12 am

1 stop9h 53m

Nantucket Memorial

Sat 9/5

12:06 pm-9:04 pm

1 stop11h 58m

$575

Quickest round-trip

SeattleNantucket

SEA - ACK

SEAACK

Seattle/Tacoma Intl

Mon 8/24

11:44 pm-10:22 am

1 stop7h 38m

Nantucket Memorial

Wed 8/26

12:02 pm-9:04 pm

1 stop12h 02m

$592

SeattleNantucket

SEA - ACK

SEAACK

Seattle/Tacoma Intl

Tue 9/1

11:44 pm-1:03 pm

1 stop10h 19m

Nantucket Memorial

Sat 9/5

12:06 pm-9:04 pm

1 stop11h 58m

$599

SeattleNantucket

SEA - ACK

SEAACK

Seattle/Tacoma Intl

Wed 8/19

11:44 pm-1:03 pm

1 stop10h 19m

Nantucket Memorial

Sat 8/22

3:43 pm-10:49 pm

1 stop10h 06m

$617

SeattleNantucket

SEA - ACK

SEAACK

Seattle/Tacoma Intl

Wed 8/19

11:59 pm-1:33 pm

2 stops10h 34m

Nantucket Memorial

Sat 8/22

2:53 pm-11:59 pm

2 stops12h 06m

$638

SeattleNantucket

SEA - ACK

SEAACK

Seattle/Tacoma Intl

Mon 8/24

11:44 pm-10:22 am

1 stop7h 38m

Nantucket Memorial

Wed 8/26

12:02 pm-9:04 pm

1 stop12h 02m

$642

SeattleNantucket

SEA - ACK

SEAACK

Seattle/Tacoma Intl

Thu 7/30

11:44 pm-1:03 pm

1 stop10h 19m

Nantucket Memorial

Mon 8/3

3:43 pm-10:49 pm

1 stop10h 06m

$648

SeattleNantucket

SEA - ACK

SEAACK

Seattle/Tacoma Intl

Wed 8/19

11:16 pm-1:33 pm

2 stops11h 17m

Nantucket Memorial

Sat 8/22

12:52 pm-8:57 pm

1 stop11h 05m

$698

SeattleNantucket

SEA - ACK

SEAACK

Seattle/Tacoma Intl

Mon 6/15

11:44 pm-10:24 am

1 stop7h 40m

Nantucket Memorial

Sun 6/21

11:20 am-10:49 pm

1 stop14h 29m

$703

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 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 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 $374. Flights from Seattle to Nantucket Island on a Sunday will generally be more expensive and average around $498. 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 $240. Flights in the morning are often more expensive with an average ticket price of $460.

How far in advance should I book a flight from Seattle 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 $402 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 $351 on momondo.

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

No. A direct flight is the cheapest option for a flight between Seattle to Nantucket Island.

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	7h 38m
Direct flights	None

The fastest flight from Seattle to Nantucket Island takes 7h 38m

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

Search flight deals

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 15.91% of the total bookings. Other popular models include Airbus A321neo with 14.76%, Boeing 737-900 with 8.76%, and Boeing 737 MAX 8 with 8.12%.

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.