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$174+ Cheap flights from Seattle to Allentown (SEA - ABE)

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 5/25. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — ABE
Apr 20 — Apr 271
Sun 4/20
Sun 4/27
1 adult, Economy
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Cheap flight deals from Seattle to Allentown

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Allentown (ABE). 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 15, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$392
(Delta)

One-way from

$174
(American Airlines)

Popular in

December

Cheapest in

February

Average price

$690
Provider with most accurate pricing for Seattle/Tacoma Intl-Allentown-Bethlehem flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Allentown-Bethlehem flights.
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From Seattle/Tacoma Intl to Allentown-Bethlehem
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One-way flight from Seattle/Tacoma Intl to Allentown-Bethlehem
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Highest demand for flights based on searches. 32% potential increase in price ($368 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($47 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from Seattle to Allentown

Cheapest flights from Seattle to Allentown
Explore the most affordable flight options available from Seattle to Allentown. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 15, 2025.

This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/306:00 amSEA - ABE
1 stop8h 06mDelta
Fri 6/65:50 pmABE - SEA
1 stop8h 59mDelta
Deal found 4/15$382
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/293:20 pmSEA - ABE
2 stops26h 18mMultiple Airlines
Wed 6/412:00 pmABE - SEA
3 stops39h 10mMultiple Airlines
Deal found 4/15$498
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 4/306:58 amSEA - ABE
2 stops12h 20mAmerican Airlines
Sun 5/46:05 amABE - SEA
1 stop9h 28mAmerican Airlines
Deal found 4/14$642
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2910:50 amSEA - ABE
1 stop7h 35mUnited Airlines
Sat 5/36:37 amABE - SEA
2 stops14h 29mUnited Airlines
Deal found 4/13$671

Cheapflights Fare Finder

Customize your flight search to find flights from Seattle to Allentown 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 15, 2025.
Use the filters below to find and compare flights from Seattle to Allentown that are best for you.

Fly from

Seattle

Fly to

Allentown

Route

Depart

Return

Price

SeattleAllentown

SEA - ABE

SEAABE

Seattle/Tacoma Intl

Fri 5/30

6:00 am-5:06 pm

1 stop8h 06m

Allentown-Bethlehem

Fri 6/6

5:50 pm-11:49 pm

1 stop8h 59m

$382

SeattleAllentown

SEA - ABE

SEAABE

Seattle/Tacoma Intl

Thu 5/29

3:20 pm-8:38 pm

2 stops26h 18m

Allentown-Bethlehem

Wed 6/4

12:00 pm-12:10 am

3 stops39h 10m

$498

SeattleAllentown

SEA - ABE

SEAABE

Seattle/Tacoma Intl

Wed 4/30

6:58 am-10:18 pm

2 stops12h 20m

Allentown-Bethlehem

Sun 5/4

6:05 am-12:33 pm

1 stop9h 28m

$642

SeattleAllentown

SEA - ABE

SEAABE

Seattle/Tacoma Intl

Tue 4/29

10:50 am-9:25 pm

1 stop7h 35m

Allentown-Bethlehem

Sat 5/3

6:37 am-6:06 pm

2 stops14h 29m

$671

SeattleAllentown

SEA - ABE

SEAABE

Seattle/Tacoma Intl

Sun 5/25

5:20 am-4:57 pm

1 stop8h 37m

$174

SeattleAllentown

SEA - ABE

SEAABE

Seattle/Tacoma Intl

Tue 5/13

6:00 am-5:06 pm

1 stop8h 06m

$184

SeattleAllentown

SEA - ABE

SEAABE

Seattle/Tacoma Intl

Sun 5/25

6:00 am-12:00 pm

3 stops27h 00m

$340

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/14

Compare providers for flights from Seattle to Allentown

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 Seattle to Allentown in April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice 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 Seattle-Allentown flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Allentown flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Allentown flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-Allentown flights, Cheapflights users trust eDreams the most. eDreams 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 Seattle-Allentown 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 Seattle to Allentown

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

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

Currently, February is the cheapest month in which you can book a flight from Seattle to Allentown (average of $292). Flying from Seattle to Allentown in December is currently the most expensive (average of $395). 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 SEA to ABE?

Find hourly flight availability from Seattle to Allentown. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 15, 2025.

When flying from Seattle to Allentown, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 25% versus a flight in the morning.

Rainfall in Allentown by month

Plan your trip to Allentown by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Allentown ranges from 2.7 - 5.0 inches per month. July is typically the wettest month, when rainfall can reach 5.0 in. February is typically the driest time to visit Allentown when rainfall is around 2.7 in.

Temperature in Allentown by month

Plan your trip to Allentown by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Allentown, 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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 28.4 F).

Reviews of airlines servicing Allentown

Get insights into the airlines that provide service to Allentown. 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 Allentown. Reviews last updated April 15, 2025.
Read reviews from past customers who have flown Delta, United Airlines and American Airlines from Seattle to Allentown. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,918 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,918 reviews
Delta
8.0
Very good
7,918 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
8,658 reviews
Delta
8.0
Very good
7,918 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,918 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

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

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

    Currently priced at $392, Delta will fly you from Seattle to Allentown and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from American Airlines and United Airlines - these airlines can fly you to your destination from $642 and $671, respectively. These flights start at 49% lower than the current average price 3 months from now.

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

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

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

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

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

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

    Currently, February is the cheapest month in which you can book a flight from Seattle to Allentown (average of $292). Flying from Seattle to Allentown in December is currently the most expensive (average of $395). 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.

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Top 2 airlines flying from Seattle to Allentown

Discover the top 2 airlines that operate flights from Seattle to Allentown. 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 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$374Average$690FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$376Average$678FlexibilityNo cancel feeOn-time71%

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