How far in advance should I book a flight from Seattle to Hyannis?

To save up to 42% on this flight, we recommend booking at least 39 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Seattle to Hyannis from $358 1-2 weeks out and tickets from $579 for flights departing within the next 72 hours.

What is the cheapest month to fly from Seattle to Hyannis?

Due to multiple factors, expect to potentially pay more when booking in August. For low rates, January can be a great choice for travel to Hyannis. Flights to Hyannis from Seattle in January are about $360 on average during January, but can be found for as low as $98.

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

When flying from Seattle 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.

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

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

How can I find direct flights from Seattle to Hyannis?

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

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

Yes. Cheapflights offers flight deals from Seattle 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.

$164+ Flights from Seattle to Hyannis

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Cheap flight deals from Seattle to Hyannis

Round-trip from	$337 (American Airlines)
One-way from	$164 (American Airlines)
Popular in	August
Cheapest in	January
Average price	$458

From Seattle/Tacoma Intl to Hyannis Barnstable

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One-way flight from Seattle/Tacoma Intl to Hyannis Barnstable

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Highest demand for flights based on searches. 17% potential increase in price ($74 potential increase over avg. RT price).

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Cheapest flight prices on average. 3% potential price decrease ($11 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 Seattle to Hyannis

Cheapest flights from Seattle to Hyannis
Explore the most affordable flight options available from Seattle to Hyannis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

Wed 8/1312:45 amSEA - HYA

2 stops9h 28mAmerican Airlines

Tue 8/1912:10 pmHYA - SEA

2 stops14h 30mAmerican Airlines

Deal found 6/12

$337

Fri 9/511:30 amSEA - HYA

1 stop27h 08mMultiple Airlines

Tue 9/910:16 amHYA - SEA

1 stop14h 54mMultiple Airlines

Deal found 6/12

$667

Mon 11/2410:29 pmSEA - HYA

1 stop8h 41mJetBlue

Tue 12/23:50 pmHYA - SEA

1 stop8h 29mJetBlue

Deal found 6/10

$1,137

Best flights from Seattle to Hyannis
Discover carefully curated flight deals from Seattle to Hyannis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 12, 2025.

Wed 8/1312:45 amSEA - HYA

2 stops9h 28mAmerican Airlines

Tue 8/1912:10 pmHYA - SEA

2 stops14h 30mAmerican Airlines

Deal found 6/12

$337

Fri 9/511:30 amSEA - HYA

1 stop27h 08mMultiple Airlines

Tue 9/910:16 amHYA - SEA

1 stop14h 54mMultiple Airlines

Deal found 6/12

$667

Mon 11/2410:29 pmSEA - HYA

1 stop8h 41mJetBlue

Tue 12/23:50 pmHYA - SEA

1 stop8h 29mJetBlue

Deal found 6/10

$1,137

Last-minute flights from Seattle to Hyannis
Discover last-minute flight deals from Seattle to Hyannis. Data last updated June 12, 2025 and is based on user searches.

Wed 6/253:58 pmSEA - HYA

3 stops16h 51mMultiple Airlines

Mon 6/301:01 pmHYA - SEA

3 stops29h 02mMultiple Airlines

Deal found 6/10

$734

Thu 7/3110:43 pmSEA - HYA

1 stop10h 07mAmerican Airlines

Tue 8/52:44 pmHYA - SEA

2 stops11h 11mAmerican Airlines

Deal found 6/10

$497

One-way flights from Seattle to Hyannis
Search for one-way flight options from Seattle to Hyannis. Find affordable one-way fares based on user searches. Data last updated June 12, 2025.

Mon 7/2110:43 pmSEA - HYA

1 stop10h 07mAmerican Airlines

Deal found 6/10

$164

Sun 7/2012:20 amSEA - HYA

2 stops11h 50mMultiple Airlines

Deal found 6/10

$669

Cheapflights Fare Finder

Use the filters below to find and compare flights from Seattle to Hyannis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleHyannis

SEA - HYA

SEAHYA

Seattle/Tacoma Intl

Wed 8/13

12:45 am-1:13 pm

2 stops9h 28m

Hyannis Barnstable

Tue 8/19

12:10 pm-11:40 pm

2 stops14h 30m

$337

SeattleHyannis

SEA - HYA

SEAHYA

Seattle/Tacoma Intl

Fri 9/5

11:30 am-5:38 pm

1 stop27h 08m

Hyannis Barnstable

Tue 9/9

10:16 am-10:10 pm

1 stop14h 54m

$667

SeattleHyannis

SEA - HYA

SEAHYA

Seattle/Tacoma Intl

Mon 11/24

10:29 pm-10:10 am

1 stop8h 41m

Hyannis Barnstable

Tue 12/2

3:50 pm-9:19 pm

1 stop8h 29m

$1,137

SeattleHyannis

SEA - HYA

SEAHYA

Seattle/Tacoma Intl

Mon 7/21

10:43 pm-11:50 am

1 stop10h 07m

$164

SeattleHyannis

SEA - HYA

SEAHYA

Seattle/Tacoma Intl

Sun 7/20

12:20 am-3:10 pm

2 stops11h 50m

$669

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Best time to book a flight from Seattle to Hyannis

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

Rainfall in Hyannis by month

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.

Temperature in Hyannis by month

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).

Reviews of airlines servicing Hyannis

JetBlue

7.3

Good

2,925 reviews

Reviews

1 / 20

10.0

Excellent

Geri,May 2025

RSW - BOS

Full flight, even thought I had priority A boarding, the flight was more than 1/2 full with Mint & Mosaic members, before I could board and get overhead space.

JetBlue

7.3

Good

2,925 reviews

JetBlue

7.3

Good

2,925 reviews

Reviews

1 / 20

10.0

Excellent

Geri,May 2025

RSW - BOS

Full flight, even thought I had priority A boarding, the flight was more than 1/2 full with Mint & Mosaic members, before I could board and get overhead space.

American Airlines

7.2

Good

10,000 reviews

JetBlue

7.3

Good

2,925 reviews

Reviews

1 / 20

10.0

Excellent

Geri,May 2025

RSW - BOS

Full flight, even thought I had priority A boarding, the flight was more than 1/2 full with Mint & Mosaic members, before I could board and get overhead space.

Related info for your journey

Can I find deals for flights from Seattle to Hyannis that include hotel bookings?
Yes. In addition to deals on Seattle to Hyannis flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Seattle to Hyannis?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Hyannis.
Can I find deals for business class flights from Seattle to Hyannis?
Yes. Cheapflights offers flight deals from Seattle 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.

Browse thousands of different options on Cheapflights for your next trip

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$164+ Cheap flights from Seattle to Hyannis (SEA - 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 7/21. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Seattle to Hyannis with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Seattle to Hyannis

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Seattle to Hyannis

Cheapest flights from Seattle to HyannisExplore the most affordable flight options available from Seattle to Hyannis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

Explore the most affordable flight options available from Seattle to Hyannis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Seattle to Hyannis that are best for you.

Best time to book a flight from Seattle to Hyannis

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

Cheapflights Insights

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

Rainfall in Hyannis by month

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

Temperature in Hyannis by month

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

Reviews of airlines servicing Hyannis

Related info for your journey

Find useful and relevant information for your journey from Seattle to Hyannis. 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 Seattle to Hyannis that include hotel bookings?

How can I find direct flights from Seattle to Hyannis?

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Seattle to Hyannis

See prices for flight routes from nearby airports that may be better suited for you.

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Travel Smart

Cheapest flights from Seattle to Hyannis
Explore the most affordable flight options available from Seattle to Hyannis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.