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Cheap flights from Allentown to Seattle from $179

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Allentown to Seattle departing on 4/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from Allentown to Seattle

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
5:06 pm - 12:16 am
ABE
-
SEA
10h 10m
1 stop
American Airlines Logo
6:00 am - 4:36 pm
SEA
-
ABE
7h 36m
1 stop
$349American Airlines
Wed, May 27 - Fri, May 29
United Airlines Logo
5:43 pm - 10:42 pm
ABE
-
SEA
7h 59m
1 stop
United Airlines Logo
11:59 pm - 9:48 am
SEA
-
ABE
6h 49m
1 stop
$353United Airlines
Wed, Apr 22 - Wed, Apr 29
United Airlines Logo
5:41 pm - 12:14 am
ABE
-
SEA
9h 33m
1 stop
United Airlines Logo
11:52 pm - 9:38 am
SEA
-
ABE
6h 46m
1 stop
$360United Airlines
Tue, Jul 21 - Mon, Jul 27
United Airlines Logo
5:36 pm - 11:59 pm
ABE
-
SEA
9h 23m
1 stop
United Airlines Logo
7:05 pm - 9:38 am
SEA
-
ABE
11h 33m
2 stops
$378United Airlines
Wed, May 27 - Fri, May 29
Delta Logo
1:08 pm - 8:11 pm
ABE
-
SEA
10h 03m
1 stop
Delta Logo
11:59 pm - 12:22 pm
SEA
-
ABE
9h 23m
1 stop
$388Delta
Tue, Jul 28 - Thu, Aug 6
American Airlines Logo
6:04 am - 12:33 pm
ABE
-
SEA
9h 29m
1 stop
American Airlines Logo
1:33 pm - 12:22 am
SEA
-
ABE
7h 49m
1 stop
$398American Airlines
Wed, Apr 22 - Wed, Apr 29
American Airlines Logo
5:06 pm - 12:16 am
ABE
-
SEA
10h 10m
1 stop
American Airlines Logo
5:15 am - 5:14 pm
SEA
-
ABE
8h 59m
1 stop
$408American Airlines
Thu, May 21 - Sat, May 30
United Airlines Logo
5:43 pm - 10:42 pm
ABE
-
SEA
7h 59m
1 stop
United Airlines Logo
10:35 pm - 9:48 am
SEA
-
ABE
8h 13m
1 stop
$424United Airlines
Thu, Apr 23 - Mon, Apr 27
United Airlines Logo
5:41 pm - 12:14 am
ABE
-
SEA
9h 33m
1 stop
United Airlines Logo
7:05 pm - 9:38 am
SEA
-
ABE
11h 33m
2 stops
$428United Airlines
Tue, Jul 21 - Mon, Jul 27
United Airlines Logo
5:43 pm - 10:42 pm
ABE
-
SEA
7h 59m
1 stop
United Airlines Logo
5:45 pm - 9:48 am
SEA
-
ABE
13h 03m
2 stops
$430United Airlines
Thu, Apr 23 - Mon, Apr 27

American Airlines flights from Allentown to Seattle

Our best American Airlines deals on Allentown to Seattle flight tickets
American Airlines
May 27
ABE5:06 pmAllentown-Bethlehem
10h 10m
1 stop
SEA12:16 amSeattle/Tacoma Intl
May 29
SEA6:00 amSeattle/Tacoma Intl
7h 36m
1 stop
ABE4:36 pmAllentown-Bethlehem
$349
American Airlines
Apr 22
ABE6:04 amAllentown-Bethlehem
9h 29m
1 stop
SEA12:33 pmSeattle/Tacoma Intl
Apr 29
SEA1:33 pmSeattle/Tacoma Intl
7h 49m
1 stop
ABE12:22 amAllentown-Bethlehem
$398
American Airlines
May 21
ABE5:06 pmAllentown-Bethlehem
10h 10m
1 stop
SEA12:16 amSeattle/Tacoma Intl
May 30
SEA5:15 amSeattle/Tacoma Intl
8h 59m
1 stop
ABE5:14 pmAllentown-Bethlehem
$408

United Airlines flights from Allentown to Seattle

Our best United Airlines deals on Allentown to Seattle flight tickets
United Airlines
Apr 22
ABE5:43 pmAllentown-Bethlehem
7h 59m
1 stop
SEA10:42 pmSeattle/Tacoma Intl
Apr 29
SEA11:59 pmSeattle/Tacoma Intl
6h 49m
1 stop
ABE9:48 amAllentown-Bethlehem
$353
United Airlines
Jul 21
ABE5:41 pmAllentown-Bethlehem
9h 33m
1 stop
SEA12:14 amSeattle/Tacoma Intl
Jul 27
SEA11:52 pmSeattle/Tacoma Intl
6h 46m
1 stop
ABE9:38 amAllentown-Bethlehem
$360
United Airlines
May 27
ABE5:36 pmAllentown-Bethlehem
9h 23m
1 stop
SEA11:59 pmSeattle/Tacoma Intl
May 29
SEA7:05 pmSeattle/Tacoma Intl
11h 33m
2 stops
ABE9:38 amAllentown-Bethlehem
$378

momondo 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, momondo users made 832,500 searches. Data last updated March 26, 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

Wed 5/27

5:06 pm-12:16 am

1 stop10h 10m

Seattle/Tacoma Intl

Fri 5/29

6:00 am-4:36 pm

1 stop7h 36m

$349
Quickest round-trip

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Wed 4/22

5:43 pm-10:42 pm

1 stop7h 59m

Seattle/Tacoma Intl

Wed 4/29

11:59 pm-9:48 am

1 stop6h 49m

$353

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Tue 7/21

5:41 pm-12:14 am

1 stop9h 33m

Seattle/Tacoma Intl

Mon 7/27

11:52 pm-9:38 am

1 stop6h 46m

$360

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Wed 5/27

5:36 pm-11:59 pm

1 stop9h 23m

Seattle/Tacoma Intl

Fri 5/29

7:05 pm-9:38 am

2 stops11h 33m

$378

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Tue 7/28

1:08 pm-8:11 pm

1 stop10h 03m

Seattle/Tacoma Intl

Thu 8/6

11:59 pm-12:22 pm

1 stop9h 23m

$388

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Wed 4/22

6:04 am-12:33 pm

1 stop9h 29m

Seattle/Tacoma Intl

Wed 4/29

1:33 pm-12:22 am

1 stop7h 49m

$398

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Thu 5/21

5:06 pm-12:16 am

1 stop10h 10m

Seattle/Tacoma Intl

Sat 5/30

5:15 am-5:14 pm

1 stop8h 59m

$408

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Thu 4/23

5:43 pm-10:42 pm

1 stop7h 59m

Seattle/Tacoma Intl

Mon 4/27

10:35 pm-9:48 am

1 stop8h 13m

$424

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Tue 7/21

5:41 pm-12:14 am

1 stop9h 33m

Seattle/Tacoma Intl

Mon 7/27

7:05 pm-9:38 am

2 stops11h 33m

$428

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Thu 4/23

5:43 pm-10:42 pm

1 stop7h 59m

Seattle/Tacoma Intl

Mon 4/27

5:45 pm-9:48 am

2 stops13h 03m

$430

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Seattle from

How to get the cheapest flight ticket from Allentown to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Allentown and Seattle?

What is the cheapest month to fly to Seattle?

In general, March is the cheapest month to fly from Allentown to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $276. If you don’t want to visit Seattle in March, then you should wait until October to fly from Allentown, when ticket prices are also cheap, with an average price of $294.

How have Allentown to Seattle flight prices changed over time?

When to book flights from Allentown to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from Allentown to Seattle according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Allentown to Seattle (ABE to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Allentown to Seattle

Fastest flight time

7h 56m

Direct flights

None
The fastest flight from Allentown to Seattle takes 7h 56m
There are no direct flights from Allentown to Seattle. There are no popular flight routes from Allentown to Seattle.
Search flight deals

  • How far is Allentown-Bethlehem to Seattle/Tacoma Intl by plane?

    The straight-line distance from Allentown-Bethlehem to Seattle/Tacoma Intl is 2336.4 mi. 7h 56m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Allentown-Bethlehem Airport to Seattle/Tacoma Intl Airport?

    Prices for flights from Allentown-Bethlehem Airport to Seattle/Tacoma Intl Airport refresh daily.

  • How many operators does momondo search for flights from Allentown-Bethlehem Airport to Seattle/Tacoma Intl Airport?

  • How old do you have to be to fly from Allentown-Bethlehem Airport to Seattle/Tacoma Intl Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Allentown-Bethlehem Airport to Seattle/Tacoma Intl Airport.

  • What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

    The travel and health documents you'll need for your trip to Seattle/Tacoma Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Allentown to Seattle?

Best airlines flying from Allentown to Seattle

Compare and see reviews for airlines that fly from Allentown to Seattle with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $276Free CancellationRating
7.1
11,495 reviews
Search American Airlines flights
United AirlinesPriceFrom $293Free CancellationRating
7.4
9,484 reviews
Search United Airlines flights

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
Leavenworth
SeaTac
Ocean Shores
Renton
Olympia
Lynnwood
Kent
Redmond
Marysville
Puyallup
Lakewood
Cle Elum
Tukwila
Federal Way
Centralia
Fife
Westport
Kirkland
Tumwater

Why use momondo?

Why should I use momondo to find a flight deal from Allentown to Seattle?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Allentown to Seattle. momondo saves you time and could save you money on your trip.

Can I find flights from Allentown to Seattle with flexible booking policies on momondo?

All flight searches from Allentown to Seattle on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Allentown to Seattle?

Once you have performed a search for Allentown to Seattle flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Allentown to Seattle right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Seattle, momondo offers a useful price alert feature which will track prices for flights to Seattle from Allentown and alert you when they change.

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