What are the cheapest airlines to fly from Westchester County to Seattle one-way?

The cheapest airline one-way is Delta, with whom users have recently found tickets for as low as $169. However, be on the lookout for offers from American Airlines and Alaska Airlines, as they are both options that can get you from Westchester County to Seattle for a low price.

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.

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).

What are the most popular airlines that fly from Westchester County to Seattle?

American Airlines, Alaska Airlines and Delta are the most popular airlines when flying from Westchester County to Seattle.

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

To save on the cost of your flight from Westchester County to Seattle, book at least 37 days before your planned departure. Booking around this time can save you about 61% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $481 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $642.

What is the cheapest month to fly from Westchester County to Seattle?

September can be a great time to fly to Seattle from Westchester County with a flight ticket averaging about $419. Cheapflights users have found deals in the month of September for as cheap as $168. The most expensive prices can be found in the month of December.

What airport do you fly into for flights to Seattle from Westchester County?

Seattle/Tacoma Intl (SEA) is the airport you will fly into if you book a flight from Westchester County to Seattle. It is only a 11.4 mi journey from Seattle/Tacoma Intl (SEA) to Seattle’s city center.

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

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

How can I find direct flights from Westchester County to Seattle?

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

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

Yes. Cheapflights offers flight deals from Westchester County 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.

$169+ Flights from Westchester County to Seattle

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Cheap flight deals from Westchester County to Seattle

Round-trip from	$277 (Delta)
One-way from	$169 (Delta)
Popular in	December
Cheapest in	September
Average price	$511

From Westchester County to Seattle/Tacoma Intl

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One-way flight from Westchester County to Seattle/Tacoma Intl

Search Deals

Highest demand for flights based on searches. 4% potential increase in price ($22 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).

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Average for round-trip flights in July 2025

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Find flight deals from Westchester County to Seattle

Cheapest flights from Westchester County to Seattle
Explore the most affordable flight options available from Westchester County to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

Tue 8/1912:45 pmHPN - SEA

1 stop9h 15mDelta

Tue 8/266:00 amSEA - HPN

1 stop6h 49mDelta

Deal found 7/1

$277

Tue 9/166:30 amHPN - SEA

2 stops11h 18mAmerican Airlines

Tue 9/3010:11 amSEA - HPN

1 stop8h 48mAmerican Airlines

Deal found 7/1

$282

Best flights from Westchester County to Seattle
Discover carefully curated flight deals from Westchester County to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 3, 2025.

Tue 8/1912:45 pmHPN - SEA

1 stop9h 15mDelta

Tue 8/266:00 amSEA - HPN

1 stop6h 49mDelta

Deal found 7/1

$277

Tue 9/166:30 amHPN - SEA

2 stops11h 18mAmerican Airlines

Tue 9/3010:11 amSEA - HPN

1 stop8h 48mAmerican Airlines

Deal found 7/1

$282

Fri 8/154:30 pmHPN - SEA

2 stops18h 34mAlaska Airlines

Mon 8/2512:59 amSEA - HPN

1 stop7h 29mAlaska Airlines

Deal found 7/3

$442

Last-minute flights from Westchester County to Seattle
Discover last-minute flight deals from Westchester County to Seattle. Data last updated July 3, 2025 and is based on user searches.

Thu 7/104:30 pmHPN - SEA

1 stop9h 54mAlaska Airlines

Mon 7/1411:40 pmSEA - HPN

1 stop8h 49mAlaska Airlines

Deal found 7/1

$702

Thu 7/101:06 pmHPN - SEA

2 stops21h 53mMultiple Airlines

Sun 7/1311:59 pmSEA - HPN

2 stops18h 00mMultiple Airlines

Deal found 7/2

$976

Sun 7/136:00 amHPN - SEA

1 stop9h 24mAmerican Airlines

Fri 7/2511:55 pmSEA - HPN

1 stop8h 34mAmerican Airlines

Deal found 7/1

$457

Wed 8/134:30 pmHPN - SEA

1 stop10h 11mAmerican Airlines

Tue 8/1912:46 amSEA - HPN

1 stop7h 42mAmerican Airlines

Deal found 7/2

$297

Fri 8/154:30 pmHPN - SEA

2 stops18h 34mAlaska Airlines

Mon 8/2512:59 amSEA - HPN

1 stop7h 29mAlaska Airlines

Deal found 7/3

$442

Tue 8/1912:45 pmHPN - SEA

1 stop9h 15mDelta

Tue 8/266:00 amSEA - HPN

1 stop6h 49mDelta

Deal found 7/1

$277

One-way flights from Westchester County to Seattle
Search for one-way flight options from Westchester County to Seattle. Find affordable one-way fares based on user searches. Data last updated July 3, 2025.

Sat 7/265:00 pmHPN - SEA

1 stop8h 21mDelta

Deal found 7/1

$169

Fri 7/254:30 pmHPN - SEA

1 stop10h 20mAmerican Airlines

Deal found 7/2

$194

Fri 8/84:30 pmHPN - SEA

2 stops18h 34mAlaska Airlines

Deal found 6/30

$229

Fri 8/812:06 pmHPN - SEA

3 stops24h 16mMultiple Airlines

Deal found 6/30

$374

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

White PlainsSeattle

HPN - SEA

HPNSEA

White Plains Westchester County

Tue 8/19

12:45 pm-7:00 pm

1 stop9h 15m

Seattle/Tacoma Intl

Tue 8/26

6:00 am-3:49 pm

1 stop6h 49m

$277

White PlainsSeattle

HPN - SEA

HPNSEA

White Plains Westchester County

Tue 9/16

6:30 am-2:48 pm

2 stops11h 18m

Seattle/Tacoma Intl

Tue 9/30

10:11 am-9:59 pm

1 stop8h 48m

$282

White PlainsSeattle

HPN - SEA

HPNSEA

White Plains Westchester County

Fri 8/15

4:30 pm-8:04 am

2 stops18h 34m

Seattle/Tacoma Intl

Mon 8/25

12:59 am-11:28 am

1 stop7h 29m

$442

White PlainsSeattle

HPN - SEA

HPNSEA

White Plains Westchester County

Sat 7/26

5:00 pm-10:21 pm

1 stop8h 21m

$169

White PlainsSeattle

HPN - SEA

HPNSEA

White Plains Westchester County

Fri 7/25

4:30 pm-11:50 pm

1 stop10h 20m

$194

White PlainsSeattle

HPN - SEA

HPNSEA

White Plains Westchester County

Fri 8/8

4:30 pm-8:04 am

2 stops18h 34m

$229

White PlainsSeattle

HPN - SEA

HPNSEA

White Plains Westchester County

Fri 8/8

12:06 pm-9:22 am

3 stops24h 16m

$374

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

Best time to book a flight from Westchester County to Seattle

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

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

Currently, January is the cheapest month in which you can book a flight from Westchester County to Seattle (average of $238). Flying from Westchester County to Seattle in July 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.

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

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

Reviews of airlines servicing Seattle

See what other customers who have flown with Alaska Airlines, Delta, and American Airlines from Westchester County to Seattle have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Alaska Airlines

8.0

Very good

10,000 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Delta

8.0

Very good

7,970 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

American Airlines

7.2

Good

10,000 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Related info for your journey

What airport do you fly into for flights to Seattle from Westchester County?
Seattle/Tacoma Intl (SEA) is the airport you will fly into if you book a flight from Westchester County 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 Westchester County to Seattle one-way?
The cheapest airline one-way is Delta, with whom users have recently found tickets for as low as $169. However, be on the lookout for offers from American Airlines and Alaska Airlines, as they are both options that can get you from Westchester County to Seattle for a low price.
Can I find deals for flights from Westchester County to Seattle that include hotel bookings?
Yes. In addition to deals on Westchester County to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Westchester County to Seattle?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Westchester County to Seattle.
Can I find deals for business class flights from Westchester County to Seattle?
Yes. Cheapflights offers flight deals from Westchester County 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 Westchester County to Seattle?
Currently, January is the cheapest month in which you can book a flight from Westchester County to Seattle (average of $238). Flying from Westchester County to Seattle in July 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

SeaTac

Tukwila

Tacoma

Lakewood

Ocean Shores

Lacey

Leavenworth

Lynnwood

Renton

Olympia

Shoreline

Puyallup

Cle Elum

Centralia

Kent

Federal Way

Chehalis

Kirkland

Aberdeen

Shelton

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Top 3 airlines flying from Westchester County to Seattle

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$316	Average$437	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$336	Average$585	FlexibilityNo cancel fee	On-time71%
Alaska Airlines	Cheapest$477	Average$632	FlexibilityNo cancel fee	On-time75%

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$169+ Cheap flights from Westchester County 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 7/26. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Westchester County to Seattle with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Westchester County to Seattle

Keep the following information in mind while searching for Westchester County to Seattle flight deals. Data was last updated July 3, 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Westchester County to Seattle

Cheapest flights from Westchester County to SeattleExplore the most affordable flight options available from Westchester County to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

Explore the most affordable flight options available from Westchester County to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Westchester County to Seattle

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

Cheapflights Insights

Everything you need to know about your flight from Westchester County to Seattle

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

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

Find hourly flight availability from Westchester County to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 3, 2025.

Reviews of airlines servicing Seattle

See what other customers who have flown with Alaska Airlines, Delta, and American Airlines from Westchester County to Seattle have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Westchester County 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 Westchester County?

What are the cheapest airlines to fly from Westchester County to Seattle one-way?

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

How can I find direct flights from Westchester County to Seattle?

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

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

Traveling to a place near Westchester County?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Westchester County to Seattle

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

Top 3 airlines flying from Westchester County to Seattle

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Travel Smart

Cheapest flights from Westchester County to Seattle
Explore the most affordable flight options available from Westchester County to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.