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$202+ 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 10/13. Fares are subject to change and may not be available on all flights or dates of travel.
ABE — SEA
oct. 15 — oct. 221
mié. 10/15
mié. 10/22
1 adult, Economy
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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 septiembre 15, 2025.

Round-trip from

$309
(Delta)

One-way from

$202
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$425
From Allentown-Bethlehem to Seattle/Tacoma Intl
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One-way flight from Allentown-Bethlehem to Seattle/Tacoma Intl
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Highest demand for flights based on searches. 21% potential increase in price ($143 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($24 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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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 septiembre 15, 2025.

This Delta deal was found by Cheapflights users on 9/13. 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.
mar. 12/166:00 pmABE - SEA
1 stop8h 58mDelta
sáb. 1/246:00 amSEA - ABE
1 stop8h 13mDelta
Deal found 9/13$309
This American Airlines deal was found by Cheapflights users on 9/13. 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.
sáb. 10/255:53 pmABE - SEA
1 stop8h 03mAmerican Airlines
mié. 10/297:44 amSEA - ABE
2 stops10h 56mAmerican Airlines
Deal found 9/13$314
This Delta deal was found by Cheapflights users on 9/13. 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.
sáb. 11/16:00 pmABE - SEA
1 stop8h 54mDelta
mar. 11/411:40 amSEA - ABE
1 stop7h 35mDelta
Deal found 9/13$339
This American Airlines deal was found by Cheapflights users on 9/13. 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.
mar. 12/161:48 pmABE - SEA
2 stops12h 50mAmerican Airlines
vie. 1/237:46 amSEA - ABE
1 stop7h 20mAmerican Airlines
Deal found 9/13$344
This Delta deal was found by Cheapflights users on 9/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/256:00 pmABE - SEA
1 stop8h 54mDelta
mié. 10/2911:40 amSEA - ABE
1 stop7h 35mDelta
Deal found 9/14$383
This Delta deal was found by Cheapflights users on 9/13. 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.
lun. 12/156:00 pmABE - SEA
2 stops18h 50mDelta
sáb. 1/246:00 amSEA - ABE
1 stop8h 13mDelta
Deal found 9/13$398
This Delta deal was found by Cheapflights users on 9/13. 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.
lun. 12/156:00 pmABE - SEA
1 stop8h 58mDelta
mar. 1/206:05 amSEA - ABE
2 stops13h 47mDelta
Deal found 9/13$402
This American Airlines deal was found by Cheapflights users on 9/13. 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.
lun. 12/151:48 pmABE - SEA
1 stop9h 49mAmerican Airlines
lun. 1/261:56 pmSEA - ABE
1 stop7h 20mAmerican Airlines
Deal found 9/13$409

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 septiembre 15, 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 pm-11:54 pm

1 stop8h 54m

Seattle/Tacoma Intl

mar. 11/4

11:40 am-10:15 pm

1 stop7h 35m

$309

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

sáb. 10/25

6:00 pm-11:54 pm

1 stop8h 54m

Seattle/Tacoma Intl

mié. 10/29

11:40 am-10:15 pm

1 stop7h 35m

$383

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

dom. 12/14

6:30 am-11:47 am

1 stop8h 17m

Seattle/Tacoma Intl

mar. 1/20

10:58 am-9:15 pm

1 stop7h 17m

$413

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

sáb. 12/13

1:15 pm-12:59 am

2 stops14h 44m

Seattle/Tacoma Intl

mar. 1/20

10:58 am-9:15 pm

1 stop7h 17m

$414

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

sáb. 12/13

5:22 pm-10:28 pm

1 stop8h 06m

Seattle/Tacoma Intl

lun. 1/26

7:30 pm-10:41 am

2 stops12h 11m

$414

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

dom. 12/14

6:00 pm-9:50 am

2 stops18h 50m

Seattle/Tacoma Intl

sáb. 1/24

6:00 am-5:13 pm

1 stop8h 13m

$432

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

lun. 10/13

6:00 am-12:07 pm

3 stops33h 07m

$249

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

mar. 10/14

2:43 pm-10:18 pm

1 stop10h 35m

$280

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

mar. 10/14

6:00 pm-11:54 pm

1 stop8h 54m

$280

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

mar. 11/25

2:00 pm-7:44 pm

1 stop8h 44m

$280

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

Showing 1-10 of 14 results
1
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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 $387). 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 septiembre 15, 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 septiembre 15, 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
7,954 reviews

Entertainment

7.9

Crew

8.5

Comfort

7.9

Overall

8.0

Food

7.3

Boarding

8.2

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
7,954 reviews
Delta
8.0
Very good
7,954 reviews

Entertainment

7.9

Crew

8.5

Comfort

7.9

Overall

8.0

Food

7.3

Boarding

8.2

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
8,929 reviews
Delta
8.0
Very good
7,954 reviews

Entertainment

7.9

Crew

8.5

Comfort

7.9

Overall

8.0

Food

7.3

Boarding

8.2

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
7,954 reviews

Entertainment

7.9

Crew

8.5

Comfort

7.9

Overall

8.0

Food

7.3

Boarding

8.2

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 8h 54m. Delta provides one of the quickest options available for as low as $309. 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 $293. Other airlines that can offer you cheap pricing are American Airlines, from $308, and Delta, from $386. These flights start at 45% 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, 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 $387). 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
Ocean Shores
Lynnwood
Edmonds
Leavenworth
Renton
Lacey
Olympia
Kent
Federal Way
Cle Elum
Puyallup
Chehalis
Kirkland
Issaquah
Aberdeen
Shoreline

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Allentown to Seattle

See prices for flight routes from nearby airports that may be better suited for you.
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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 septiembre 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$293Average$615FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$308Average$465FlexibilityNo cancel feeOn-time71%
DeltaCheapest$386Average$638FlexibilityNo cancel feeOn-timeN/A

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