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$168+ 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 5/9. Fares are subject to change and may not be available on all flights or dates of travel.
ABE — SEA
Apr 13 — Apr 201
Mon 4/13
Mon 4/20
1 adult, Economy
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Cheap 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 March 14, 2026.

This United Airlines deal was found by Cheapflights users on 3/10. 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.
Wed 9/910:38 am
ABE
-
SEA
1 stop7h 58m
United Airlines
Fri 9/1810:47 pm
SEA
-
ABE
1 stop8h 19m
United Airlines
Deal found 3/10$329
This United Airlines deal was found by Cheapflights users on 3/9. 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.
Fri 4/35:43 pm
ABE
-
SEA
1 stop7h 59m
United Airlines
Fri 5/87:36 pm
SEA
-
ABE
2 stops11h 12m
United Airlines
Deal found 3/9$338
This United Airlines deal was found by Cheapflights users on 3/9. 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.
Sat 6/62:23 pm
ABE
-
SEA
2 stops13h 50m
United Airlines
Tue 6/910:40 pm
SEA
-
ABE
1 stop7h 58m
United Airlines
Deal found 3/9$344
This American Airlines deal was found by Cheapflights users on 3/12. 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.
Mon 8/315:18 pm
ABE
-
SEA
1 stop9h 32m
American Airlines
Wed 9/911:38 pm
SEA
-
ABE
1 stop10h 29m
American Airlines
Deal found 3/12$368
This United Airlines deal was found by Cheapflights users on 3/9. 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.
Sun 5/246:15 am
ABE
-
SEA
1 stop8h 23m
United Airlines
Wed 5/2710:40 pm
SEA
-
ABE
1 stop7h 58m
United Airlines
Deal found 3/9$370
This United Airlines deal was found by Cheapflights users on 3/12. 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.
Fri 4/35:43 pm
ABE
-
SEA
1 stop9h 51m
United Airlines
Tue 4/147:37 pm
SEA
-
ABE
2 stops11h 11m
United Airlines
Deal found 3/12$376
This American Airlines deal was found by Cheapflights users on 3/11. 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.
Wed 3/1812:00 pm
ABE
-
SEA
1 stop10h 14m
American Airlines
Wed 3/251:44 pm
SEA
-
ABE
1 stop7h 45m
American Airlines
Deal found 3/11$385
This American Airlines deal was found by Cheapflights users on 3/11. 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.
Sun 8/235:18 pm
ABE
-
SEA
1 stop9h 32m
American Airlines
Thu 9/1011:32 am
SEA
-
ABE
1 stop7h 43m
American Airlines
Deal found 3/11$388
This American Airlines deal was found by Cheapflights users on 3/13. 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.
Thu 5/215:06 pm
ABE
-
SEA
1 stop9h 33m
American Airlines
Sat 5/306:00 am
SEA
-
ABE
1 stop7h 19m
American Airlines
Deal found 3/13$393
This American Airlines deal was found by Cheapflights users on 3/12. 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.
Fri 8/145:18 pm
ABE
-
SEA
1 stop9h 32m
American Airlines
Mon 8/246:10 am
SEA
-
ABE
1 stop7h 38m
American Airlines
Deal found 3/12$399

Find 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 March 14, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$329
(United Airlines)

One-way from

$168
(United Airlines)

Popular in

July

Cheapest in

March

Average price

$276
Provider with most accurate pricing for Allentown-Bethlehem-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Allentown-Bethlehem-Seattle/Tacoma Intl flights.
Search Deals
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. 7% potential increase in price ($45 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($27 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

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 March 14, 2026.
Use the filters below to find and compare flights from Allentown to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Fri 4/3

5:43 pm-12:34 am

1 stop9h 51m

Seattle/Tacoma Intl

Tue 4/14

7:37 pm-9:48 am

2 stops11h 11m

$376

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Sat 6/6

2:23 pm-1:13 am

2 stops13h 50m

Seattle/Tacoma Intl

Tue 6/9

7:05 pm-9:38 am

2 stops11h 33m

$416
Quickest round-trip

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Sat 5/9

5:40 pm-10:47 pm

1 stop8h 07m

Seattle/Tacoma Intl

Sun 5/17

11:53 pm-9:48 am

1 stop6h 55m

$426

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Fri 7/10

2:23 pm-10:36 pm

1 stop11h 13m

Seattle/Tacoma Intl

Tue 7/21

5:20 pm-9:38 am

2 stops13h 18m

$473

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Fri 5/15

2:25 pm-11:59 pm

1 stop12h 34m

Seattle/Tacoma Intl

Mon 5/25

11:52 pm-9:38 am

1 stop6h 46m

$552

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Thu 6/25

5:36 pm-11:59 pm

1 stop9h 23m

Seattle/Tacoma Intl

Sun 6/28

11:52 pm-10:03 am

1 stop7h 11m

$604

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Sun 8/2

5:41 pm-9:22 am

2 stops18h 41m

Seattle/Tacoma Intl

Tue 8/11

7:35 pm-10:06 am

2 stops11h 31m

$706

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Fri 3/27

5:58 pm-11:57 pm

1 stop8h 59m

Seattle/Tacoma Intl

Tue 3/31

6:15 am-5:17 pm

1 stop8h 02m

$715

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Sun 5/24

2:23 pm-10:39 pm

1 stop11h 16m

Seattle/Tacoma Intl

Sun 5/31

5:04 pm-1:48 pm

2 stops17h 44m

$727
Cheapest one-way

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Sat 5/9

5:40 pm-10:47 pm

1 stop8h 07m

$168

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/8

Showing 1-10 of 17 resultsSorted by cheapest first
1
2

Compare providers for flights from Allentown to Seattle

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Allentown to Seattle in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Allentown-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Allentown-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Allentown-Seattle flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Allentown-Seattle flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Allentown-Seattle flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 $177). Flying from Allentown to Seattle in June is currently the most expensive (average of $256). 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.

How much does it cost to fly round-trip from Allentown to Seattle?

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 March 14, 2026.
Get a feel of what it's like to fly with 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.
United Airlines
7.4
Good
9,423 reviews

Food

6.6

Entertainment

7.1

Overall

7.4

Comfort

7.3

Crew

8.1

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,423 reviews
United Airlines
7.4
Good
9,423 reviews

Food

6.6

Entertainment

7.1

Overall

7.4

Comfort

7.3

Crew

8.1

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
American Airlines
7.1
Good
11,464 reviews
United Airlines
7.4
Good
9,423 reviews

Food

6.6

Entertainment

7.1

Overall

7.4

Comfort

7.3

Crew

8.1

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

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 9h 51m. United Airlines provides one of the quickest options available for as low as $376. The distance between Allentown and Seattle is about 2336 mi.

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

    Cheapflights users have booked flights from Allentown to Seattle round-trip from $276. Another airline that can offer you cheap pricing is United Airlines. These flights start at 46% lower than the current average price 3 months from now.

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

    $148 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on American Airlines and Delta, with prices starting from $158 and $178, 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 $177). Flying from Allentown to Seattle in June is currently the most expensive (average of $256). 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
Tacoma
SeaTac
Lakewood
Ocean Shores
Olympia
Kent
Lynnwood
Edmonds
Lacey
Renton
Puyallup
Kirkland
Tukwila
Fife
Aberdeen
Shoreline
Marysville
Centralia
Federal Way
Chehalis

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.

Top 2 airlines flying from Allentown to Seattle

Discover the top 2 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 March 14, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$276Average$467FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$293Average$622FlexibilityNo cancel feeOn-time69%

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