$168 Find Cheap Flights from Seattle to Cape Cod and the Islands

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 Cape Cod and the Islands departing on 8/12. 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 Cape Cod and the Islands

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

Save 21% 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.

Flight Deals
Booking Insights
Flight Deals

Book Cheap Seattle to Cape Cod and the Islands 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 Cape Cod and the Islands 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 Cape Cod and the Islands

Tue, Aug 25 - Fri, Aug 28
JetBlue Logo
11:45 pm - 10:22 am
SEA
-
ACK
7h 37m
1 stop
JetBlue Logo
12:02 pm - 9:08 pm
ACK
-
SEA
12h 06m
1 stop
$370JetBlue
Tue, Aug 25 - Thu, Aug 27
JetBlue Logo
11:45 pm - 1:03 pm
SEA
-
ACK
10h 18m
1 stop
JetBlue Logo
12:02 pm - 9:08 pm
ACK
-
SEA
12h 06m
1 stop
$401JetBlue
Tue, Aug 25 - Fri, Aug 28
JetBlue Logo
11:45 pm - 1:03 pm
SEA
-
ACK
10h 18m
1 stop
JetBlue Logo
12:02 pm - 9:08 pm
ACK
-
SEA
12h 06m
1 stop
$406JetBlue
Thu, Aug 6 - Fri, Aug 14
JetBlue Logo
11:45 pm - 1:03 pm
SEA
-
ACK
10h 18m
1 stop
JetBlue Logo
3:33 pm - 10:53 pm
ACK
-
SEA
10h 20m
1 stop
$416JetBlue
Tue, Aug 4 - Tue, Aug 11
American Airlines Logo
10:35 pm - 12:00 pm
SEA
-
MVY
10h 25m
1 stop
American Airlines Logo
3:00 pm - 10:56 pm
MVY
-
SEA
10h 56m
1 stop
$445American Airlines
Thu, Jul 9 - Mon, Jul 13
JetBlue Logo
11:46 pm - 10:22 am
SEA
-
ACK
7h 36m
1 stop
JetBlue Logo
3:33 pm - 10:54 pm
ACK
-
SEA
10h 21m
1 stop
$446JetBlue
Tue, Aug 4 - Tue, Aug 11
American Airlines Logo
11:56 pm - 2:30 pm
SEA
-
MVY
11h 34m
2 stops
American Airlines Logo
3:00 pm - 10:56 pm
MVY
-
SEA
10h 56m
1 stop
$451American Airlines
Mon, Aug 17 - Mon, Aug 31
Delta Logo
11:59 pm - 3:08 pm
SEA
-
MVY
12h 09m
2 stops
Delta Logo
1:18 pm - 10:05 pm
MVY
-
SEA
11h 47m
2 stops
$589Delta
Tue, Jul 21 - Fri, Jul 24
Multiple Airlines Logo
11:46 pm - 3:45 pm
SEA
-
EWB
12h 59m
2 stops
Multiple Airlines Logo
7:00 am - 10:54 pm
EWB
-
SEA
18h 54m
2 stops
$927Multiple Airlines
Tue, Jul 7 - Sat, Jul 11
Multiple Airlines Logo
11:44 pm - 1:12 pm
SEA
-
PVC
10h 28m
1 stop
Multiple Airlines Logo
4:20 pm - 10:31 pm
PVC
-
SEA
9h 11m
1 stop
$945Multiple Airlines
Booking Insights

KAYAK's insights & trends for Seattle to Cape Cod and the Islands flights

Get data-powered insights and trends into flights from Seattle to Cape Cod and the Islands 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 Cape Cod and the Islands?

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

The cheapest time of day to fly to Cape Cod and the Islands 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 Cape Cod and the Islands is generally in the morning, which is peak travel time and where the average cost of a ticket is $475.

Can I save money by flying with a layover from Seattle to Cape Cod and the Islands?

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 Cape Cod and the Islands?

The average price of all round-trip flights from Seattle to Cape Cod and the Islands clicked on KAYAK for each day over the last 12 months.

When flying from Seattle to Cape Cod and the Islands, you should consider leaving on a Wednesday and avoid Sundays if you are looking for the best rates. For your return to Seattle, you’ll find the best rates on Wednesdays and the most expensive ones on Mondays.

How far in advance should I book a flight from Seattle to Cape Cod and the Islands?

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 Cape Cod and the Islands, 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 Cape Cod and the Islands, 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 7 weeks before departure.

Find deals

Good to know

Low seasonJanuary
Cheapest flight$168
Best time to beat the crowds with an average 2% drop in price.
Most popular time to fly and prices are also 21% lower on average.
Flight from Seattle to West Tisbury

FAQs - booking Cape Cod and the Islands flights

  • How does KAYAK find such low prices on flights from Seattle to Cape Cod and the Islands?

    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 Cape Cod and the Islands.

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

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

    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 Cape Cod and the Islands 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 Cape Cod and the Islands?

    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 Cape Cod and the Islands 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 Cape Cod and the Islands

 
See real verified KAYAK customer reviews for airlines flying from Seattle to Cape Cod and the Islands. 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 Cape Cod and the Islands? 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 3011 reviews
7.3Boarding
6.6Food
7.5Comfort
7.2Entertainment
7.9Crew
Airline reviews

A nightmare. Scheduled flight delayed 2 hours then cancelled because pilot timed out . Unable to find another pilot. Really?! Weather certainly a factor, but JetBlue seemed totally unprepared for the chaos that ensued when flight routes were cancelled. More cancelled flights, finally many of us who had been bumped from other flights were allowed to board a Boston bound plane around 3:00am, delay after delay, sat on tarmac for another half hour while pilot dealt with weight distribution issues (?), arrived in Boston 4:30. Crew were wonderful- same attendants all day and night and they were exhausted. Fortunately for me and my son that Boston was our final destination, not so lucky for many who missed connecting flights.

2.0 MediocreNancy, Jun 2026
DCA - BOS
Read more JetBlue reviews

A nightmare. Scheduled flight delayed 2 hours then cancelled because pilot timed out . Unable to find another pilot. Really?! Weather certainly a factor, but JetBlue seemed totally unprepared for the chaos that ensued when flight routes were cancelled. More cancelled flights, finally many of us who had been bumped from other flights were allowed to board a Boston bound plane around 3:00am, delay after delay, sat on tarmac for another half hour while pilot dealt with weight distribution issues (?), arrived in Boston 4:30. Crew were wonderful- same attendants all day and night and they were exhausted. Fortunately for me and my son that Boston was our final destination, not so lucky for many who missed connecting flights.

The flight was delayed 14 hours and communication was very poor. No one seemed to know what was happening and the gate agent was trying to help people for several flights. She was by herself trying to help 100s of people.

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.

The plane was late to leave.. Internet was lousy. TV was not working. when we arrived, We stayed on the plane for a long time before we got to the gate. It took us a long time to retrieve our luggage because they didn’t know what carousel to send them to. It was a bad experience.

Seats were not too comfortable; it was impossible to locate the underseat power outlet.

It was too hot in the cabin. The AC did not help.

Everything you need to know for your flight to Cape Cod and the Islands

Information on your arrival and departure airports

Seattle (SEA)