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Cheap flights from Allentown to Seattle from $175

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 8/12. 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

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Allentown to Seattle

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
2:25 pm - 8:07 pm
ABE
-
SEA
8h 42m
1 stop
American Airlines Logo
6:18 am - 4:40 pm
SEA
-
ABE
7h 22m
1 stop
$349American Airlines
Sat, Sep 19 - Sat, Oct 3
Delta Logo
6:04 pm - 11:57 pm
ABE
-
SEA
8h 53m
1 stop
Delta Logo
5:30 am - 10:23 pm
SEA
-
ABE
13h 53m
2 stops
$354Delta
Thu, Aug 27 - Mon, Aug 31
United Airlines Logo
5:36 pm - 10:45 pm
ABE
-
SEA
8h 09m
1 stop
United Airlines Logo
11:00 pm - 9:39 am
SEA
-
ABE
7h 39m
1 stop
$359United Airlines
Sat, Sep 19 - Sun, Sep 20
American Airlines Logo
9:36 am - 2:45 pm
ABE
-
SEA
8h 09m
1 stop
American Airlines Logo
5:50 am - 4:42 pm
SEA
-
ABE
7h 52m
1 stop
$373American Airlines
Wed, Aug 26 - Mon, Aug 31
Delta Logo
6:04 pm - 11:57 pm
ABE
-
SEA
8h 53m
1 stop
Delta Logo
6:00 am - 5:21 pm
SEA
-
ABE
8h 21m
1 stop
$384Delta
Fri, Aug 28 - Wed, Sep 9
Delta Logo
6:09 pm - 11:57 pm
ABE
-
SEA
8h 48m
1 stop
Delta Logo
11:10 pm - 5:23 pm
SEA
-
ABE
15h 13m
2 stops
$389Delta
Sat, Aug 15 - Mon, Aug 24
United Airlines Logo
6:15 am - 11:38 am
ABE
-
SEA
8h 23m
1 stop
United Airlines Logo
5:20 pm - 9:58 am
SEA
-
ABE
13h 38m
2 stops
$392United Airlines
Sat, Jul 4 - Fri, Jul 10
American Airlines Logo
9:36 am - 2:45 pm
ABE
-
SEA
8h 09m
1 stop
American Airlines Logo
5:50 am - 4:42 pm
SEA
-
ABE
7h 52m
1 stop
$393American Airlines
Wed, Aug 26 - Mon, Aug 31
American Airlines Logo
9:36 am - 2:45 pm
ABE
-
SEA
8h 09m
1 stop
American Airlines Logo
5:50 am - 4:42 pm
SEA
-
ABE
7h 52m
1 stop
$397American Airlines
Thu, Aug 27 - Mon, Aug 31
American Airlines Logo
5:12 pm - 11:59 pm
ABE
-
SEA
9h 47m
1 stop
American Airlines Logo
5:10 am - 4:27 pm
SEA
-
ABE
8h 17m
1 stop
$398American Airlines
Tue, Aug 11 - Wed, Aug 19

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United Airlines flights from Allentown to Seattle

Our best United Airlines deals on Allentown to Seattle flight tickets
United Airlines
Sep 19
ABE5:36 pmAllentown-Bethlehem
8h 09m
1 stop
SEA10:45 pmSeattle/Tacoma Intl
Sep 20
SEA11:00 pmSeattle/Tacoma Intl
7h 39m
1 stop
ABE9:39 amAllentown-Bethlehem
$359
United Airlines
Jul 4
ABE6:15 amAllentown-Bethlehem
8h 23m
1 stop
SEA11:38 amSeattle/Tacoma Intl
Jul 10
SEA5:20 pmSeattle/Tacoma Intl
13h 38m
2 stops
ABE9:58 amAllentown-Bethlehem
$392
United Airlines
Sep 19
ABE5:36 pmAllentown-Bethlehem
8h 09m
1 stop
SEA10:45 pmSeattle/Tacoma Intl
Oct 3
SEA7:25 pmSeattle/Tacoma Intl
11h 10m
2 stops
ABE9:35 amAllentown-Bethlehem
$404

American Airlines flights from Allentown to Seattle

Our best American Airlines deals on Allentown to Seattle flight tickets
American Airlines
Aug 26
ABE9:36 amAllentown-Bethlehem
8h 09m
1 stop
SEA2:45 pmSeattle/Tacoma Intl
Aug 31
SEA5:50 amSeattle/Tacoma Intl
7h 52m
1 stop
ABE4:42 pmAllentown-Bethlehem
$349
American Airlines
Aug 26
ABE9:36 amAllentown-Bethlehem
8h 09m
1 stop
SEA2:45 pmSeattle/Tacoma Intl
Aug 31
SEA5:50 amSeattle/Tacoma Intl
7h 52m
1 stop
ABE4:42 pmAllentown-Bethlehem
$373
American Airlines
Aug 27
ABE9:36 amAllentown-Bethlehem
8h 09m
1 stop
SEA2:45 pmSeattle/Tacoma Intl
Aug 31
SEA5:50 amSeattle/Tacoma Intl
7h 52m
1 stop
ABE4:42 pmAllentown-Bethlehem
$397

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 June 23, 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

Sat 9/19

2:25 pm-8:07 pm

1 stop8h 42m

Seattle/Tacoma Intl

Sat 10/3

6:18 am-4:40 pm

1 stop7h 22m

$349

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Thu 8/27

6:04 pm-11:57 pm

1 stop8h 53m

Seattle/Tacoma Intl

Mon 8/31

5:30 am-10:23 pm

2 stops13h 53m

$354
Quickest round-trip

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Sat 9/19

5:36 pm-10:45 pm

1 stop8h 09m

Seattle/Tacoma Intl

Sun 9/20

11:00 pm-9:39 am

1 stop7h 39m

$359

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Wed 8/26

9:36 am-2:45 pm

1 stop8h 09m

Seattle/Tacoma Intl

Mon 8/31

5:50 am-4:42 pm

1 stop7h 52m

$373

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Fri 8/28

6:04 pm-11:57 pm

1 stop8h 53m

Seattle/Tacoma Intl

Wed 9/9

6:00 am-5:21 pm

1 stop8h 21m

$384

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Sat 8/15

6:09 pm-11:57 pm

1 stop8h 48m

Seattle/Tacoma Intl

Mon 8/24

11:10 pm-5:23 pm

2 stops15h 13m

$389

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Sat 7/4

6:15 am-11:38 am

1 stop8h 23m

Seattle/Tacoma Intl

Fri 7/10

5:20 pm-9:58 am

2 stops13h 38m

$392

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Wed 8/26

9:36 am-2:45 pm

1 stop8h 09m

Seattle/Tacoma Intl

Mon 8/31

5:50 am-4:42 pm

1 stop7h 52m

$393

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Thu 8/27

9:36 am-2:45 pm

1 stop8h 09m

Seattle/Tacoma Intl

Mon 8/31

5:50 am-4:42 pm

1 stop7h 52m

$397

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Tue 8/11

5:12 pm-11:59 pm

1 stop9h 47m

Seattle/Tacoma Intl

Wed 8/19

5:10 am-4:27 pm

1 stop8h 17m

$398

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 $298.

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

8h 07m

Direct flights

None
The fastest flight from Allentown to Seattle takes 8h 07m
There are no direct flights from Allentown to Seattle. There are no popular flight routes from Allentown to Seattle.
Search flight deals

Frequently asked questions about flying from Allentown to Seattle

  • 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. 8h 07m 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
United AirlinesPriceFrom $249Free CancellationRating
7.4
9,875 reviews
Search United Airlines flights
American AirlinesPriceFrom $276Free CancellationRating
7.1
11,745 reviews
Search American 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
Redmond
Kent
Lakewood
Puyallup
Tukwila
Federal Way
Fife
Cle Elum
Marysville
Centralia
Kirkland
Shoreline
Westport

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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