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$577+ Cheap flights from Hyannis to Seattle (HYA - 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 6/21. Fares are subject to change and may not be available on all flights or dates of travel.
HYA — SEA
Jan 26 — Feb 21
Mon 1/26
Mon 2/2
1 adult, Economy
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Cheap flight deals from Hyannis to Seattle

One-way flights from Hyannis to Seattle
Search for one-way flight options from Hyannis to Seattle. Find affordable one-way fares based on user searches. Data last updated December 27, 2025.

This American Airlines deal was found by Cheapflights users on 12/25. 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 6/212:47 pmHYA - SEA
2 stops11h 08mAmerican Airlines
Deal found 12/25$577

Find flight deals from Hyannis to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Hyannis (HYA) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 27, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
1 star

Popular in

December

Cheapest in

March

Average price

$521
Provider with most accurate pricing for Hyannis Barnstable-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Hyannis Barnstable-Seattle/Tacoma Intl flights.
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($43 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Hyannis 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 December 27, 2025.
Use the filters below to find and compare flights from Hyannis to Seattle that are best for you.

Fly from

Hyannis

Fly to

Seattle

Route

Depart

Return

Price

HyannisSeattle

HYA - SEA

HYASEA

Hyannis Barnstable

Sun 6/21

2:47 pm-10:55 pm

2 stops11h 08m

$577

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/25

  • Most accurate provider: When it comes to deals on Hyannis-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Hyannis-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Hyannis-Seattle flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Hyannis-Seattle flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Hyannis-Seattle flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Hyannis to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Hyannis 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 Hyannis to Seattle

What is the cheapest month to book a flight from Hyannis to Seattle?

Currently, January is the cheapest month in which you can book a flight from Hyannis to Seattle (average of $98). Flying from Hyannis to Seattle in December is currently the most expensive (average of $198). 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.

Related info for your journey

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

  • Can I find deals for flights from Hyannis to Seattle that include hotel bookings?

    Yes. In addition to deals on Hyannis to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Hyannis to Seattle?

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

  • Can I find deals for business class flights from Hyannis to Seattle?

    Yes. Cheapflights offers flight deals from Hyannis 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 Hyannis to Seattle?

    Currently, January is the cheapest month in which you can book a flight from Hyannis to Seattle (average of $98). Flying from Hyannis to Seattle in December is currently the most expensive (average of $198). 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 Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
SeaTac
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Ocean Shores
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Puyallup
Kirkland
Kent
Tukwila
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