HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Seattle

$199+ Cheap flights from Allentown to Seattle (ABE - 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 9/23. Fares are subject to change and may not be available on all flights or dates of travel.
ABE — SEA
ago. 25 — sep. 11
lun. 8/25
lun. 9/1
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Allentown to Seattle with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Allentown to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Allentown (ABE) 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 agosto 20, 2025.

Round-trip from

$309
(Delta)

One-way from

$199
(Delta)

Popular in

July

Cheapest in

September

Average price

$598
From Allentown-Bethlehem to Seattle/Tacoma Intl
Search Deals
One-way flight from Allentown-Bethlehem to Seattle/Tacoma Intl
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($136 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($26 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2025
Search Deals

Find flight deals from Allentown to Seattle

Cheapest flights from Allentown to Seattle
Explore the most affordable flight options available from Allentown to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on agosto 20, 2025.

This Delta deal was found by Cheapflights users on 8/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/16:00 pmABE - SEA
1 stop8h 54mDelta
mar. 11/411:40 amSEA - ABE
1 stop7h 35mDelta
Deal found 8/19$309
This American Airlines deal was found by Cheapflights users on 8/19. 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.
sáb. 12/61:44 pmABE - SEA
2 stops12h 21mAmerican Airlines
sáb. 12/131:56 pmSEA - ABE
1 stop7h 21mAmerican Airlines
Deal found 8/19$314
This American Airlines deal was found by Cheapflights users on 8/19. 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. 9/36:00 amABE - SEA
1 stop8h 19mAmerican Airlines
dom. 9/76:00 amSEA - ABE
1 stop10h 29mAmerican Airlines
Deal found 8/19$369
This United Airlines deal was found by Cheapflights users on 8/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/231:00 pmABE - SEA
1 stop8h 49mUnited Airlines
mar. 10/711:40 pmSEA - ABE
1 stop7h 58mUnited Airlines
Deal found 8/19$373
This American Airlines deal was found by Cheapflights users on 8/18. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/115:53 pmABE - SEA
1 stop8h 03mAmerican Airlines
sáb. 10/1811:56 pmSEA - ABE
1 stop10h 30mAmerican Airlines
Deal found 8/18$393
This American Airlines deal was found by Cheapflights users on 8/19. 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.
vie. 9/122:37 pmABE - SEA
1 stop8h 22mAmerican Airlines
sáb. 9/136:28 amSEA - ABE
1 stop8h 33mAmerican Airlines
Deal found 8/19$437
This United Airlines deal was found by Cheapflights users on 8/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/241:00 pmABE - SEA
2 stops12h 59mUnited Airlines
lun. 9/2911:40 pmSEA - ABE
1 stop7h 58mUnited Airlines
Deal found 8/20$442

Cheapflights Fare Finder

 
Customize your flight search to find flights from Allentown 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 agosto 20, 2025.
Use the filters below to find and compare flights from Allentown to Seattle that are best for you.

Fly from

Allentown

Fly to

Seattle

Route

Depart

Return

Price

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

sáb. 11/1

6:00 am-2:01 pm

1 stop11h 01m

Seattle/Tacoma Intl

mar. 11/4

11:40 am-10:15 pm

1 stop7h 35m

$309

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

sáb. 12/6

1:44 pm-8:58 pm

1 stop10h 14m

Seattle/Tacoma Intl

sáb. 12/13

1:56 pm-12:17 am

1 stop7h 21m

$309

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

mié. 9/3

6:00 am-11:19 am

1 stop8h 19m

Seattle/Tacoma Intl

dom. 9/7

6:00 am-7:29 pm

1 stop10h 29m

$369

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

mar. 9/23

1:00 pm-6:49 pm

1 stop8h 49m

Seattle/Tacoma Intl

mar. 10/7

11:40 pm-10:38 am

1 stop7h 58m

$373

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

mié. 9/24

1:00 pm-6:49 pm

1 stop8h 49m

Seattle/Tacoma Intl

lun. 9/29

11:40 pm-10:38 am

1 stop7h 58m

$373

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

mar. 9/23

5:28 pm-10:20 pm

1 stop7h 52m

Seattle/Tacoma Intl

lun. 9/29

11:40 pm-10:38 am

1 stop7h 58m

$373

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

mar. 9/23

6:12 pm-11:54 pm

1 stop8h 42m

$199

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

lun. 9/22

6:12 pm-11:54 pm

1 stop8h 42m

$199

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

mié. 12/24

6:14 am-11:56 am

1 stop8h 42m

$230

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

mié. 12/24

2:30 pm-6:06 pm

2 stops30h 36m

$299

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/18

Showing 1-10 of 12 results
1
2

Best time to book a flight from Allentown to Seattle

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

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

Currently, January is the cheapest month in which you can book a flight from Allentown to Seattle (average of $238). Flying from Allentown to Seattle in June is currently the most expensive (average of $388). 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 ABE to SEA?

Find hourly flight availability from Allentown 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 agosto 20, 2025.

It’s typically best to fly out from Allentown to Seattle in the afternoon. Doing so could potentially save you 27% on the flight price compared to flying at noon, which is usually more expensive.

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 agosto 20, 2025.
Get a feel of what it's like to fly with Delta, United Airlines, and American Airlines from Allentown to Seattle by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,982 reviews

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,982 reviews
Delta
8.0
Very good
7,982 reviews

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,928 reviews
Delta
8.0
Very good
7,982 reviews

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,982 reviews

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

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

  • How long is the flight from Allentown to Seattle?

    A quick flight from Allentown to Seattle can take about 10h 14m. Delta provides one of the quickest options available for as low as $309. The distance between Allentown and Seattle is about 2336 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Allentown to Seattle round-trip?

    Cheapflights users have booked flights from Allentown to Seattle round-trip from $293. Other airlines that can offer you cheap pricing are American Airlines, from $314, and Delta, from $386. These flights start at 42% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Allentown to Seattle one-way?

    $199 is the cheapest one-way deal found within the past few days, from Delta. You may also be able to find cheap deals on American Airlines and United Airlines, with prices starting from $230 and $299, respectively.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Allentown to Seattle (average of $238). Flying from Allentown to Seattle in June is currently the most expensive (average of $388). 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
SeaTac
Tukwila
Tacoma
Lakewood
Lacey
Ocean Shores
Lynnwood
Leavenworth
Renton
Olympia
Kent
Cle Elum
Puyallup
Chehalis
Kirkland
Issaquah
Aberdeen
Shoreline
Federal Way
Shelton

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 Allentown to Seattle

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Seattle flights
Newark to Seattle flights
Dulles Intl to Seattle flights
Reagan-National to Seattle flights
Philadelphia to Seattle flights
LaGuardia to Seattle flights
John F Kennedy Intl to Portland flights
Newark to Portland flights
Pittsburgh to Seattle flights
Dulles Intl to Portland flights
Reagan-National to Portland flights
LaGuardia to Portland flights
Philadelphia to Portland flights
Dulles Intl to Spokane flights
Reagan-National to Spokane flights
Pittsburgh to Portland flights
Harrisburg to Seattle flights
Newark to Spokane flights
John F Kennedy Intl to Spokane flights
Harrisburg to Portland flights
LaGuardia to Spokane flights
Elmira to Seattle flights
Allentown to Portland flights
Philadelphia to Spokane flights
State College to Seattle flights
Philadelphia to Pasco flights
John F Kennedy Intl to Pasco flights
State College to Portland flights
Scranton to Seattle flights
Newark to Pasco flights
Dulles Intl to Pasco flights
John F Kennedy Intl to Bellingham flights
LaGuardia to Pasco flights
Dulles Intl to Bellingham flights
Pittsburgh to Spokane flights
Reagan-National to Bellingham flights
Newark to Bellingham flights
Reagan-National to Pasco flights
Harrisburg to Spokane flights
Elmira to Portland flights
Allentown to Spokane flights
Reagan-National to Walla Walla flights
Dulles Intl to Walla Walla flights
LaGuardia to Bellingham flights
John F Kennedy Intl to Yakima flights
Newark to Pullman flights
John F Kennedy Intl to Walla Walla flights
Newark to Yakima flights
Reagan-National to Pullman flights

Top 3 airlines flying from Allentown to Seattle

Discover the top 3 airlines that operate flights from Allentown to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated agosto 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$293Average$619FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$314Average$471FlexibilityNo cancel feeOn-time71%
DeltaCheapest$386Average$638FlexibilityNo cancel feeOn-timeN/A

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.