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$657+ Cheap flights from Hyannis to Seattle (HYA - SEA)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/18. Fares are subject to change and may not be available on all flights or dates of travel.
HYA — SEA
jun. 23 — jun. 301
lun. 6/23
lun. 6/30
1 adult, Economy
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Cheap 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 junio 18, 2025.

Round-trip from

$657
(JetBlue Airways)

Popular in

August

Cheapest in

January

Average price

$421
From Hyannis Barnstable to Seattle/Tacoma Intl
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($85 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2025
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Find flight deals from Hyannis to Seattle

Cheapest flights from Hyannis to Seattle
Explore the most affordable flight options available from Hyannis to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on junio 18, 2025.

This JetBlue Airways deal was found by Cheapflights users on 6/18. 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.
jue. 9/1810:16 amHYA - SEA
1 stop14h 54mMultiple Airlines
lun. 9/2911:30 amSEA - HYA
1 stop27h 08mMultiple Airlines
Deal found 6/18$657
This American Airlines deal was found by Cheapflights users on 6/17. 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.
mié. 7/212:19 pmHYA - SEA
2 stops13h 36mAmerican Airlines
dom. 7/611:55 pmSEA - HYA
2 stops10h 13mAmerican Airlines
Deal found 6/17$911

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 junio 18, 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

jue. 9/18

10:16 am-10:10 pm

1 stop14h 54m

Seattle/Tacoma Intl

lun. 9/29

11:30 am-5:38 pm

1 stop27h 08m

$657

HyannisSeattle

HYA - SEA

HYASEA

Hyannis Barnstable

mié. 7/2

12:19 pm-10:55 pm

2 stops13h 36m

Seattle/Tacoma Intl

dom. 7/6

11:55 pm-1:08 pm

2 stops10h 13m

$911

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/18

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 $238). Flying from Hyannis to Seattle in June is currently the most expensive (average of $390). 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.

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 junio 18, 2025.
American Airlines
7.2
Good
10,000 reviews

Boarding

7.5

Entertainment

6.9

Food

6.5

Overall

7.2

Comfort

7.2

Crew

8.0

Reviews

1 / 20
2.0
Mediocre

Andrew,May 2025

LAX - MIA

2 hour delay. Discovered an engine problem late, we boarded the plane and they asked us to come off. To add insult to injury nothing was given to passengers to make amends. No free drink. No extra food or snacks. No free WiFi. Gimme a break
American Airlines
7.2
Good
10,000 reviews
American Airlines
7.2
Good
10,000 reviews

Boarding

7.5

Entertainment

6.9

Food

6.5

Overall

7.2

Comfort

7.2

Crew

8.0

Reviews

1 / 20
2.0
Mediocre

Andrew,May 2025

LAX - MIA

2 hour delay. Discovered an engine problem late, we boarded the plane and they asked us to come off. To add insult to injury nothing was given to passengers to make amends. No free drink. No extra food or snacks. No free WiFi. Gimme a break

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 $238). Flying from Hyannis to Seattle in June is currently the most expensive (average of $390). 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 Hyannis?

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

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