CA $197 Cheap JetBlue Airways fights from Seattle (SEA) to Nantucket (ACK)

View CA $197 flight on Sat, Sep. 13, 2025Opens in a new window

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JetBlue Airways flights from Seattle to Nantucket (SEA→ACK)

Prices were available within the past 7 days and start at CA $197 for one-way flights and CA $620 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

JetBlue Airways
Thu, Sep. 4 - Wed, Sep. 10
SEA
Seattle
ACK
Nantucket
CA $620 Roundtrip, found 2 days ago
CA $620
Roundtrip
found 2 days ago
Select JetBlue Airways flight, departing Thu, Sep. 4 from Seattle to Nantucket, returning Wed, Sep. 10, priced at CA $620 found 2 days ago
JetBlue Airways
Thu, Sep. 4 - Wed, Sep. 10
SEA
Seattle
ACK
Nantucket
CA $964 Roundtrip, found 2 days ago
CA $964
Roundtrip
found 2 days ago
Select JetBlue Airways flight, departing Thu, Sep. 4 from Seattle to Nantucket, returning Wed, Sep. 10, priced at CA $964 found 2 days ago
JetBlue Airways
Thu, Sep. 4 - Wed, Sep. 10
SEA
Seattle
ACK
Nantucket
CA $1,004 Roundtrip, found 2 days ago
CA $1,004
Roundtrip
found 2 days ago
Select JetBlue Airways flight, departing Thu, Sep. 4 from Seattle to Nantucket, returning Wed, Sep. 10, priced at CA $1,004 found 2 days ago
JetBlue Airways
Thu, Sep. 4 - Wed, Sep. 10
SEA
Seattle
ACK
Nantucket
CA $1,012 Roundtrip, found 2 days ago
CA $1,012
Roundtrip
found 2 days ago
Select JetBlue Airways flight, departing Thu, Sep. 4 from Seattle to Nantucket, returning Wed, Sep. 10, priced at CA $1,012 found 2 days ago
JetBlue Airways
Thu, Sep. 4 - Wed, Sep. 10
SEA
Seattle
ACK
Nantucket
CA $1,040 Roundtrip, found 2 days ago
CA $1,040
Roundtrip
found 2 days ago
Select JetBlue Airways flight, departing Thu, Sep. 4 from Seattle to Nantucket, returning Wed, Sep. 10, priced at CA $1,040 found 2 days ago
JetBlue Airways
Thu, Sep. 4 - Wed, Sep. 10
SEA
Seattle
ACK
Nantucket
CA $1,082 Roundtrip, found 2 days ago
CA $1,082
Roundtrip
found 2 days ago
Select JetBlue Airways flight, departing Thu, Sep. 4 from Seattle to Nantucket, returning Wed, Sep. 10, priced at CA $1,082 found 2 days ago
Flight from Seattle to Nantucket (SEA - ACK) route information
Origin airport
Seattle - Tacoma Intl.
Destination airport
Nantucket Memorial
Distance
4106 km
*Available to Expedia members.