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$171+ 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 5/11. Fares are subject to change and may not be available on all flights or dates of travel.
ABE — SEA
May 18 — May 251
Mon 5/18
Mon 5/25
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 April 18, 2026.

This American Airlines deal was found by Cheapflights users on 4/14. 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.
Tue 5/265:06 pm
ABE
-
SEA
1 stop10h 10m
American Airlines
Wed 6/31:10 pm
SEA
-
ABE
1 stop8h 11m
American Airlines
Deal found 4/14$349
This American Airlines deal was found by Cheapflights users on 4/14. 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.
Sat 8/225:18 pm
ABE
-
SEA
1 stop9h 32m
American Airlines
Tue 8/256:10 am
SEA
-
ABE
1 stop7h 38m
American Airlines
Deal found 4/14$377
This Kiwi.com deal was found by Cheapflights users on 4/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/149:00 am
ABE
-
SEA
2 stops51h 49m
Multiple Airlines
Thu 5/283:19 pm
SEA
-
ABE
1 stop28h 45m
Multiple Airlines
Deal found 4/14$388
This United Airlines deal was found by Cheapflights users on 4/14. 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 8/225:36 pm
ABE
-
SEA
1 stop8h 06m
United Airlines
Tue 8/257:35 pm
SEA
-
ABE
2 stops11h 31m
United Airlines
Deal found 4/14$394
This American Airlines deal was found by Cheapflights users on 4/15. 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 6/105:06 pm
ABE
-
SEA
1 stop10h 10m
American Airlines
Tue 6/1610:50 am
SEA
-
ABE
1 stop10h 31m
American Airlines
Deal found 4/15$398
This Delta deal was found by Cheapflights users on 4/16. 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.
Fri 5/15:59 pm
ABE
-
SEA
1 stop8h 54m
Delta
Sat 5/96:00 am
SEA
-
ABE
1 stop8h 28m
Delta
Deal found 4/16$403
This Delta deal was found by Cheapflights users on 4/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/146:33 am
ABE
-
SEA
1 stop8h 41m
Delta
Tue 4/2111:15 pm
SEA
-
ABE
1 stop9h 57m
Delta
Deal found 4/13$405
This American Airlines deal was found by Cheapflights users on 4/16. 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.
Sat 5/212:00 pm
ABE
-
SEA
2 stops11h 13m
American Airlines
Sat 5/91:33 pm
SEA
-
ABE
1 stop7h 49m
American Airlines
Deal found 4/16$407
This American Airlines deal was found by Cheapflights users on 4/14. 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 5/275:06 pm
ABE
-
SEA
1 stop10h 10m
American Airlines
Tue 6/161:10 pm
SEA
-
ABE
1 stop8h 11m
American Airlines
Deal found 4/14$415
This Delta deal was found by Cheapflights users on 4/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/285:59 pm
ABE
-
SEA
1 stop8h 54m
Delta
Mon 5/411:15 pm
SEA
-
ABE
1 stop9h 57m
Delta
Deal found 4/12$416

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 April 18, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$349
(American Airlines)

One-way from

$171
(Kiwi.com)

Popular in

July

Cheapest in

March

Average price

$328
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. 9% potential increase in price ($54 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 April 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 April 18, 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 5/1

5:59 pm-11:53 pm

1 stop8h 54m

Seattle/Tacoma Intl

Sat 5/9

6:00 am-5:28 pm

1 stop8h 28m

$403

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Tue 7/14

2:23 pm-10:36 pm

1 stop11h 13m

Seattle/Tacoma Intl

Tue 8/4

11:52 pm-9:38 am

1 stop6h 46m

$428
Quickest round-trip

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Sat 5/2

5:40 pm-10:47 pm

1 stop8h 07m

Seattle/Tacoma Intl

Tue 5/5

11:53 pm-9:48 am

1 stop6h 55m

$491

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Wed 4/29

5:43 pm-10:42 pm

1 stop7h 59m

Seattle/Tacoma Intl

Sat 5/2

7:36 pm-1:38 pm

2 stops15h 02m

$520

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Mon 7/27

6:05 pm-11:59 pm

1 stop8h 54m

Seattle/Tacoma Intl

Mon 8/3

11:59 pm-12:22 pm

1 stop9h 23m

$603

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Mon 7/13

6:05 pm-11:59 pm

1 stop8h 54m

Seattle/Tacoma Intl

Fri 8/7

5:25 am-10:27 pm

2 stops14h 02m

$627

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Fri 6/19

5:36 pm-11:59 pm

1 stop9h 23m

Seattle/Tacoma Intl

Mon 6/22

6:30 am-9:38 am

2 stops24h 08m

$702
Cheapest one-way
Quickest one-way

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Sat 5/9

5:40 pm-10:47 pm

1 stop8h 07m

$217

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Mon 7/20

1:08 pm-9:48 pm

1 stop11h 40m

$280

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Thu 7/23

6:05 pm-11:59 pm

1 stop8h 54m

$330

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/13

Showing 1-10 of 16 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 April.
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, March is the cheapest month in which you can book a flight from Allentown to Seattle (average of $276). Flying from Allentown to Seattle in July is currently the most expensive (average of $786). 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 April 18, 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
9,605 reviews

Boarding

7.7

Crew

8.1

Entertainment

7.1

Comfort

7.3

Food

6.6

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.
United Airlines
7.4
Good
9,605 reviews
United Airlines
7.4
Good
9,605 reviews

Boarding

7.7

Crew

8.1

Entertainment

7.1

Comfort

7.3

Food

6.6

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.
American Airlines
7.1
Good
11,604 reviews
United Airlines
7.4
Good
9,605 reviews

Boarding

7.7

Crew

8.1

Entertainment

7.1

Comfort

7.3

Food

6.6

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.

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 8h 54m. Delta provides one of the quickest options available for as low as $403. 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 $276. Another airline that can offer you cheap pricing is United Airlines. These flights start at 44% lower than the current average price 3 months from now.

  • 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, March is the cheapest month in which you can book a flight from Allentown to Seattle (average of $276). Flying from Allentown to Seattle in July is currently the most expensive (average of $786). 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
Tacoma
Ocean Shores
Olympia
Lynnwood
Lacey
Kent
Edmonds
Leavenworth
Snoqualmie
Tumwater
Tukwila
Renton
Puyallup
Kirkland
Ellensburg
Fife
Lakewood
Issaquah
Shoreline

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 April 18, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$276Average$461FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$293Average$570FlexibilityNo cancel feeOn-time69%

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