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$294+ 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 6/28. Fares are subject to change and may not be available on all flights or dates of travel.
ACK — SEA
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June 12, 2025.

Round-trip from

$765
(American Airlines)

One-way from

$294
(American Airlines)

Popular in

August

Cheapest in

January

Average price

$416
From Cape Cod and the Islands to Seattle/Tacoma Intl
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One-way flight from Cape Cod and the Islands to Seattle/Tacoma Intl
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Highest demand for flights based on searches. 20% potential increase in price ($89 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($13 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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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 June 12, 2025.

This American Airlines deal was found by Cheapflights users on 6/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/2712:20 pmHYA - SEA
2 stops11h 05mAmerican Airlines
Sun 8/310:43 pmSEA - HYA
1 stop10h 07mAmerican Airlines
Deal found 6/12$765
This JetBlue Airways deal was found by Cheapflights users on 6/11. 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 Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/278:55 amHYA - SEA
1 stop15h 58mMultiple Airlines
Tue 7/19:14 pmSEA - HYA
1 stop17h 24mMultiple Airlines
Deal found 6/11$896
This JetBlue deal was found by Cheapflights users on 6/10. 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.
Sat 6/213:05 pmMVY - SEA
1 stop9h 48mJetBlue
Tue 6/249:14 pmSEA - MVY
1 stop10h 43mJetBlue
Deal found 6/10$980

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 June 12, 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

HyannisSeattle

HYA - SEA

HYASEA

Hyannis Barnstable

Sun 7/27

12:20 pm-8:25 pm

2 stops11h 05m

Seattle/Tacoma Intl

Sun 8/3

10:43 pm-11:50 am

1 stop10h 07m

$765

HyannisSeattle

HYA - SEA

HYASEA

Hyannis Barnstable

Fri 6/27

8:55 am-9:53 pm

1 stop15h 58m

Seattle/Tacoma Intl

Tue 7/1

9:14 pm-5:38 pm

1 stop17h 24m

$896

West TisburySeattle

MVY - SEA

MVYSEA

West Tisbury Martha's Vineyard

Mon 7/7

2:18 pm-10:04 pm

1 stop10h 46m

Seattle/Tacoma Intl

Sat 7/12

9:13 pm-9:31 am

1 stop9h 18m

$1,096

West TisburySeattle

MVY - SEA

MVYSEA

West Tisbury Martha's Vineyard

Sat 6/28

2:02 pm-8:03 pm

1 stop9h 01m

$294

West TisburySeattle

MVY - SEA

MVYSEA

West Tisbury Martha's Vineyard

Mon 6/30

2:16 pm-10:49 pm

1 stop11h 33m

$324

ProvincetownSeattle

PVC - SEA

PVCSEA

Provincetown

Sat 6/28

3:24 pm-9:53 pm

1 stop9h 29m

$464

West TisburySeattle

MVY - SEA

MVYSEA

West Tisbury Martha's Vineyard

Mon 7/7

1:41 pm-10:04 pm

1 stop11h 23m

$598

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

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

Rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Seattle ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit Seattle when rainfall is around 0.7 in.

Temperature in Seattle by month

Plan your trip to Seattle by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated June 12, 2025.
Delta
8.0
Very good
7,946 reviews

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
4.0
Okay

Peter,Oct 2023

MSP - GEG

The amount of carry on is put of control. We were in group 3 boarding and there was no room in upper storage for our 1 bag (between 2 people) Just because we can’t afford to up grade our seats… $2000 more. We get penaltized. Make us feel less than
Delta
8.0
Very good
7,946 reviews
Delta
8.0
Very good
7,946 reviews

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
4.0
Okay

Peter,Oct 2023

MSP - GEG

The amount of carry on is put of control. We were in group 3 boarding and there was no room in upper storage for our 1 bag (between 2 people) Just because we can’t afford to up grade our seats… $2000 more. We get penaltized. Make us feel less than
JetBlue
7.3
Good
2,925 reviews
Delta
8.0
Very good
7,946 reviews

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
4.0
Okay

Peter,Oct 2023

MSP - GEG

The amount of carry on is put of control. We were in group 3 boarding and there was no room in upper storage for our 1 bag (between 2 people) Just because we can’t afford to up grade our seats… $2000 more. We get penaltized. Make us feel less than
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,946 reviews

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
4.0
Okay

Peter,Oct 2023

MSP - GEG

The amount of carry on is put of control. We were in group 3 boarding and there was no room in upper storage for our 1 bag (between 2 people) Just because we can’t afford to up grade our seats… $2000 more. We get penaltized. Make us feel less than

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 cheapest airlines to fly from Cape Cod and the Islands to Seattle one-way?

    $294 is the cheapest one-way deal found within the past few days, from American Airlines. You may also be able to find cheap deals on Delta and JetBlue, with prices starting from $324 and $464, respectively.

  • 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, Hyannis Barnstable - Seattle/Tacoma Intl or Provincetown - 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 July is currently the most expensive (average of $391). 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

Traveling to a place near Cape Cod and the Islands?

Book flights to Cape Cod and the Islands if you plan to visit one of these locations
SeaTac
Tukwila
Tacoma
Lakewood
Ocean Shores
Lacey
Leavenworth
Federal Way
Lynnwood
Olympia
Shoreline
Kent
Cle Elum
Centralia
Kirkland
Aberdeen
Renton
Shelton
Silverdale
Issaquah

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