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$295+ Cheap flights from Cape Cod and the Islands to Seattle (SEA)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/20. Fares are subject to change and may not be available on all flights or dates of travel.
ACK — SEA
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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Cheap flight deals from Cape Cod and the Islands to Seattle

Keep the following information in mind while searching for Cape Cod and the Islands to Seattle flight deals. Data was last updated August 14, 2025.

Popular in

August

Cheapest in

January

Average price

$452
Highest demand for flights based on searches. 15% potential increase in price ($63 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2025
Search Deals

Find flight deals from Cape Cod and the Islands to Seattle

Cheapest flights from Cape Cod and the Islands to Seattle
Explore the most affordable flight options available from Cape Cod and the Islands to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

This Delta deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/222:13 pmMVY - SEA
2 stops12h 53mDelta
Mon 8/2511:15 pmSEA - MVY
2 stops11h 18mDelta
Deal found 8/13$848
This American Airlines deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/222:03 pmMVY - SEA
2 stops12h 38mAmerican Airlines
Sun 8/2412:58 amSEA - MVY
2 stops11h 39mAmerican Airlines
Deal found 8/13$860
This JetBlue deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/222:18 pmMVY - SEA
1 stop10h 41mJetBlue
Mon 8/2511:25 pmSEA - MVY
1 stop8h 13mJetBlue
Deal found 8/12$1,054

Cheapflights Fare Finder

 
Customize your flight search to find flights from Cape Cod and the Islands to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 14, 2025.
Use the filters below to find and compare flights from Cape Cod and the Islands to Seattle that are best for you.

Fly from

Cape Cod and the Islands

Fly to

Seattle

Route

Depart

Return

Price

West TisburySeattle

MVY - SEA

MVYSEA

West Tisbury Martha's Vineyard

Thu 8/21

12:32 pm-7:33 pm

1 stop10h 01m

$295

West TisburySeattle

MVY - SEA

MVYSEA

West Tisbury Martha's Vineyard

Wed 8/20

2:13 pm-11:15 pm

1 stop12h 02m

$295

West TisburySeattle

MVY - SEA

MVYSEA

West Tisbury Martha's Vineyard

Thu 8/21

2:13 pm-12:06 am

2 stops12h 53m

$301

West TisburySeattle

MVY - SEA

MVYSEA

West Tisbury Martha's Vineyard

Wed 8/20

12:00 pm-8:19 pm

2 stops11h 19m

$301

West TisburySeattle

MVY - SEA

MVYSEA

West Tisbury Martha's Vineyard

Thu 8/21

10:06 am-9:59 pm

1 stop14h 53m

$322

West TisburySeattle

MVY - SEA

MVYSEA

West Tisbury Martha's Vineyard

Sat 8/23

7:00 am-9:34 am

3 stops29h 34m

$380

West TisburySeattle

MVY - SEA

MVYSEA

West Tisbury Martha's Vineyard

Fri 8/22

10:16 am-9:59 pm

1 stop14h 43m

$409

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/14

Best time to book a flight from Cape Cod and the Islands to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Cape Cod and the Islands with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Cape Cod and the Islands to Seattle
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Cape Cod and the Islands to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Seattle from Cape Cod and the Islands?

    Seattle/Tacoma Intl (SEA) is the airport you will fly into if you book a flight from Cape Cod and the Islands to Seattle. It is only a 11.4 mi journey from Seattle/Tacoma Intl (SEA) to Seattle’s city center.

  • What are the most popular routes from Cape Cod and the Islands to Seattle?

    When deciding which route to take from Cape Cod and the Islands to Seattle consider West Tisbury Martha's Vineyard - Seattle/Tacoma Intl, Provincetown - Seattle/Tacoma Intl or Hyannis Barnstable - Seattle/Tacoma Intl as they are the most popular.

  • Can I find deals for flights from Cape Cod and the Islands to Seattle that include hotel bookings?

    Yes. In addition to deals on Cape Cod and the Islands to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Cape Cod and the Islands to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Cape Cod and the Islands to Seattle.

  • Can I find deals for business class flights from Cape Cod and the Islands to Seattle?

    Yes. Cheapflights offers flight deals from Cape Cod and the Islands to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Cape Cod and the Islands to Seattle?

    Currently, January is the cheapest month in which you can book a flight from Cape Cod and the Islands to Seattle (average of $238). Flying from Cape Cod and the Islands to Seattle in June is currently the most expensive (average of $389). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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