In terms of precipitation, rainfall in Hyannis ranges from 3.0 - 4.1 inches per month. March is typically the wettest month, when rainfall can reach 4.1 in. June is typically the driest time to visit Hyannis when rainfall is around 3.0 in.

If weather is an important factor for your trip to Hyannis, 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 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

How far in advance should I book a flight from State of Washington to Hyannis?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 53 days in advance, which can save you up to 78% on flights from State of Washington to Hyannis compared to booking the week you need them. Waiting 53 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $358. For sooner than that we have options available in the next 3 days from $557.

What is the cheapest month to fly from State of Washington to Hyannis?

Due to multiple factors, expect to potentially pay more when booking in December. For low rates, January can be a great choice for travel to Hyannis. Flights to Hyannis from State of Washington in January are about $349 on average during January, but can be found for as low as $98.

What is the cheapest time of day to fly from WA to HYA?

When flying from State of Washington to Hyannis, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

What airport do you fly into for flights to Hyannis from Washington?

For a flight from Washington to Hyannis, you will be flying into Barnstable. Hyannis Barnstable (HYA) is just 1.0 mi from the center of the city.

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

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

How can I find direct flights from Washington to Hyannis?

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

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

Yes. Cheapflights offers flight deals from Washington to Hyannis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$264+ Flights from Washington to Hyannis

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Cheap flight deals from Washington to Hyannis

Popular in	December
Cheapest in	January
Average price	$437

High demand for flights, 6% potential price rise

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Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).

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Average for round-trip flights in August 2025

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Fly from

Fly to

Route

Depart

Return

Price

SeattleHyannis

SEA - HYA

SEAHYA

Seattle/Tacoma Intl

Sun 8/24

11:00 pm-11:40 am

1 stop9h 40m

$264

SeattleHyannis

SEA - HYA

SEAHYA

Seattle/Tacoma Intl

Sat 8/23

11:30 pm-1:51 pm

2 stops11h 21m

$319

SeattleHyannis

SEA - HYA

SEAHYA

Seattle/Tacoma Intl

Sun 8/24

4:40 pm-12:06 pm

3 stops40h 26m

$493

SeattleHyannis

SEA - HYA

SEAHYA

Seattle/Tacoma Intl

Sat 8/23

12:40 pm-5:38 pm

3 stops25h 58m

$514

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/18

Best time to book a flight from Washington to Hyannis

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

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Related info for your journey

What airport do you fly into for flights to Hyannis from Washington?
For a flight from Washington to Hyannis, you will be flying into Barnstable. Hyannis Barnstable (HYA) is just 1.0 mi from the center of the city.
Can I find deals for flights from Washington to Hyannis that include hotel bookings?
Yes. In addition to deals on Washington to Hyannis flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Washington to Hyannis?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington to Hyannis.
Can I find deals for business class flights from Washington to Hyannis?
Yes. Cheapflights offers flight deals from Washington to Hyannis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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$264+ Cheap flights from Washington to Hyannis (HYA)

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 8/24. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Washington to Hyannis with Cheapflights

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Cheap flight deals from Washington to Hyannis

Keep the following information in mind while searching for Washington to Hyannis flight deals. Data was last updated August 20, 2025.

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Best time to book a flight from Washington to Hyannis

Have a flexible travel schedule? Discover the best time to fly to Hyannis from Washington with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Washington to Hyannis

Related info for your journey

Find useful and relevant information for your journey from Washington to Hyannis. 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 Hyannis from Washington?

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

How can I find direct flights from Washington to Hyannis?

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

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