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$209+ 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 9/19. Fares are subject to change and may not be available on all flights or dates of travel.
ABE — SEA
juin 17 — juin 241
mar. 6/17
mar. 6/24
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 juin 12, 2025.

Round-trip from

$334
(American Airlines)

One-way from

$209
(American Airlines)

Popular in

July

Cheapest in

March

Average price

$564
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. 17% potential increase in price ($111 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 June 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 juin 12, 2025.

This American Airlines deal was found by Cheapflights users on 6/12. 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.
mer. 9/102:37 pmABE - SEA
1 stop10h 50mAmerican Airlines
lun. 9/156:42 amSEA - ABE
1 stop8h 48mAmerican Airlines
Deal found 6/12$334
This Delta deal was found by Cheapflights users on 6/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/235:40 pmABE - SEA
1 stop9h 31mDelta
sam. 10/113:20 pmSEA - ABE
1 stop22h 54mDelta
Deal found 6/10$477
This Mytrip deal was found by Cheapflights users on 6/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 8/11:01 pmABE - SEA
3 stops30h 24mMultiple Airlines
dim. 8/35:30 pmSEA - ABE
2 stops24h 03mMultiple Airlines
Deal found 6/10$518
This United Airlines deal was found by Cheapflights users on 6/10. 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.
jeu. 7/105:35 pmABE - SEA
1 stop9h 24mUnited Airlines
lun. 7/1411:45 pmSEA - ABE
1 stop19h 10mUnited Airlines
Deal found 6/10$612

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 juin 12, 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

mer. 9/10

2:37 pm-10:27 pm

1 stop10h 50m

Seattle/Tacoma Intl

lun. 9/15

6:42 am-6:30 pm

1 stop8h 48m

$334

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

mar. 9/23

5:40 pm-12:11 am

1 stop9h 31m

Seattle/Tacoma Intl

sam. 10/11

3:20 pm-5:14 pm

1 stop22h 54m

$477

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

ven. 8/1

1:01 pm-4:25 pm

3 stops30h 24m

Seattle/Tacoma Intl

dim. 8/3

5:30 pm-8:33 pm

2 stops24h 03m

$518

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

jeu. 7/10

5:35 pm-11:59 pm

1 stop9h 24m

Seattle/Tacoma Intl

lun. 7/14

11:45 pm-9:55 pm

1 stop19h 10m

$612

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

ven. 9/19

2:37 pm-7:59 pm

1 stop8h 22m

$209

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

jeu. 7/17

11:42 am-4:25 pm

2 stops31h 43m

$256

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

mar. 7/15

5:35 pm-11:59 pm

1 stop9h 24m

$269

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

mar. 7/15

12:55 pm-8:45 pm

1 stop10h 50m

$399

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

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 July is currently the most expensive (average of $391). 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 juin 12, 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.

Rainfall in Seattle by month

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

In terms of precipitation, rainfall in Seattle ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit Seattle when rainfall is around 0.7 in.

Temperature in Seattle by month

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

If weather is an important factor for your trip to Seattle, 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 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

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 juin 12, 2025.
See what other customers who have flown with Delta, United Airlines and American Airlines from Allentown to Seattle have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,946 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

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
7,946 reviews
Delta
8.0
Very good
7,946 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

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
8,790 reviews
Delta
8.0
Very good
7,946 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

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
7,946 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

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.

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

    Cheapflights users have booked flights from Allentown to Seattle round-trip from $334. Other airlines that can offer you cheap pricing are Delta, from $477, and United Airlines, from $612. These flights start at 35% lower than the current average price 3 months from now.

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

    $209 is the cheapest one-way deal found within the past few days, from American Airlines. You may also be able to find cheap deals on United Airlines and Delta, with prices starting from $269 and $399, 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 July is currently the most expensive (average of $391). 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 Allentown?

Book flights to Allentown if you plan to visit one of these locations
SeaTac
Tukwila
Tacoma
Lakewood
Ocean Shores
Lacey
Leavenworth
Federal Way
Lynnwood
Olympia
Shoreline
Kent
Cle Elum
Centralia
Kirkland
Aberdeen
Renton
Shelton
Silverdale
Issaquah

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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 juin 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$293Average$610FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$328Average$475FlexibilityNo cancel feeOn-time71%
DeltaCheapest$386Average$563FlexibilityNo cancel feeOn-timeN/A

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