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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 7/8. 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
5:18 pm - 11:50 pm
ABE
-
SEA
9h 32m
1 stop
American Airlines Logo
10:40 am - 10:15 pm
SEA
-
ABE
8h 35m
1 stop
$329American Airlines
Wed, Aug 12 - Wed, Aug 19
United Airlines Logo
10:38 am - 9:11 pm
ABE
-
SEA
13h 33m
2 stops
United Airlines Logo
10:47 pm - 10:06 am
SEA
-
ABE
8h 19m
1 stop
$334United Airlines
Wed, Sep 9 - Fri, Sep 18
United Airlines Logo
5:43 pm - 10:42 pm
ABE
-
SEA
7h 59m
1 stop
United Airlines Logo
7:36 pm - 9:48 am
SEA
-
ABE
11h 12m
2 stops
$338United Airlines
Fri, Apr 3 - Fri, May 8
United Airlines Logo
2:23 pm - 1:13 am
ABE
-
SEA
13h 50m
2 stops
United Airlines Logo
10:40 pm - 9:38 am
SEA
-
ABE
7h 58m
1 stop
$344United Airlines
Sat, Jun 6 - Tue, Jun 9
American Airlines Logo
5:18 pm - 11:50 pm
ABE
-
SEA
9h 32m
1 stop
American Airlines Logo
11:38 pm - 1:07 pm
SEA
-
ABE
10h 29m
1 stop
$368American Airlines
Mon, Aug 31 - Wed, Sep 9
United Airlines Logo
5:43 pm - 12:34 am
ABE
-
SEA
9h 51m
1 stop
United Airlines Logo
7:37 pm - 9:48 am
SEA
-
ABE
11h 11m
2 stops
$376United Airlines
Fri, Apr 3 - Tue, Apr 14
United Airlines Logo
5:36 pm - 10:39 pm
ABE
-
SEA
8h 03m
1 stop
United Airlines Logo
11:52 pm - 9:38 am
SEA
-
ABE
6h 46m
1 stop
$386United Airlines
Sat, Jun 6 - Tue, Jun 9
American Airlines Logo
5:18 pm - 11:50 pm
ABE
-
SEA
9h 32m
1 stop
American Airlines Logo
11:32 am - 10:15 pm
SEA
-
ABE
7h 43m
1 stop
$388American Airlines
Sun, Aug 23 - Thu, Sep 10
American Airlines Logo
5:06 pm - 11:39 pm
ABE
-
SEA
9h 33m
1 stop
American Airlines Logo
6:00 am - 4:19 pm
SEA
-
ABE
7h 19m
1 stop
$393American Airlines
Thu, May 21 - Sat, May 30
American Airlines Logo
5:18 pm - 11:50 pm
ABE
-
SEA
9h 32m
1 stop
American Airlines Logo
6:10 am - 4:48 pm
SEA
-
ABE
7h 38m
1 stop
$399American Airlines
Fri, Aug 14 - Mon, Aug 24

American Airlines flights from Allentown to Seattle

Our best American Airlines deals on Allentown to Seattle flight tickets
American Airlines
Aug 12
ABE5:18 pmAllentown-Bethlehem
9h 32m
1 stop
SEA11:50 pmSeattle/Tacoma Intl
Aug 19
SEA10:40 amSeattle/Tacoma Intl
8h 35m
1 stop
ABE10:15 pmAllentown-Bethlehem
$329
American Airlines
Aug 31
ABE5:18 pmAllentown-Bethlehem
9h 32m
1 stop
SEA11:50 pmSeattle/Tacoma Intl
Sep 9
SEA11:38 pmSeattle/Tacoma Intl
10h 29m
1 stop
ABE1:07 pmAllentown-Bethlehem
$368
American Airlines
Mar 18
ABE12:00 pmAllentown-Bethlehem
10h 14m
1 stop
SEA7:14 pmSeattle/Tacoma Intl
Mar 25
SEA1:44 pmSeattle/Tacoma Intl
7h 45m
1 stop
ABE12:29 amAllentown-Bethlehem
$385

United Airlines flights from Allentown to Seattle

Our best United Airlines deals on Allentown to Seattle flight tickets
United Airlines
Sep 9
ABE10:38 amAllentown-Bethlehem
13h 33m
2 stops
SEA9:11 pmSeattle/Tacoma Intl
Sep 18
SEA10:47 pmSeattle/Tacoma Intl
8h 19m
1 stop
ABE10:06 amAllentown-Bethlehem
$334
United Airlines
Apr 3
ABE5:43 pmAllentown-Bethlehem
7h 59m
1 stop
SEA10:42 pmSeattle/Tacoma Intl
May 8
SEA7:36 pmSeattle/Tacoma Intl
11h 12m
2 stops
ABE9:48 amAllentown-Bethlehem
$338
United Airlines
Jun 6
ABE2:23 pmAllentown-Bethlehem
13h 50m
2 stops
SEA1:13 amSeattle/Tacoma Intl
Jun 9
SEA10:40 pmSeattle/Tacoma Intl
7h 58m
1 stop
ABE9:38 amAllentown-Bethlehem
$344

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 14, 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 8/12

5:18 pm-11:50 pm

1 stop9h 32m

Seattle/Tacoma Intl

Wed 8/19

10:40 am-10:15 pm

1 stop8h 35m

$329

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Wed 9/9

10:38 am-9:11 pm

2 stops13h 33m

Seattle/Tacoma Intl

Fri 9/18

10:47 pm-10:06 am

1 stop8h 19m

$334

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Fri 4/3

5:43 pm-10:42 pm

1 stop7h 59m

Seattle/Tacoma Intl

Fri 5/8

7:36 pm-9:48 am

2 stops11h 12m

$338

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Sat 6/6

2:23 pm-1:13 am

2 stops13h 50m

Seattle/Tacoma Intl

Tue 6/9

10:40 pm-9:38 am

1 stop7h 58m

$344

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Mon 8/31

5:18 pm-11:50 pm

1 stop9h 32m

Seattle/Tacoma Intl

Wed 9/9

11:38 pm-1:07 pm

1 stop10h 29m

$368

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Fri 4/3

5:43 pm-12:34 am

1 stop9h 51m

Seattle/Tacoma Intl

Tue 4/14

7:37 pm-9:48 am

2 stops11h 11m

$376
Quickest round-trip

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Sat 6/6

5:36 pm-10:39 pm

1 stop8h 03m

Seattle/Tacoma Intl

Tue 6/9

11:52 pm-9:38 am

1 stop6h 46m

$386

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Sun 8/23

5:18 pm-11:50 pm

1 stop9h 32m

Seattle/Tacoma Intl

Thu 9/10

11:32 am-10:15 pm

1 stop7h 43m

$388

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Thu 5/21

5:06 pm-11:39 pm

1 stop9h 33m

Seattle/Tacoma Intl

Sat 5/30

6:00 am-4:19 pm

1 stop7h 19m

$393

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Fri 8/14

5:18 pm-11:50 pm

1 stop9h 32m

Seattle/Tacoma Intl

Mon 8/24

6:10 am-4:48 pm

1 stop7h 38m

$399

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 59m

Direct flights

None
The fastest flight from Allentown to Seattle takes 7h 59m
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 59m 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
11,464 reviews
Search American Airlines flights
United AirlinesPriceFrom $293Free CancellationRating
7.4
9,423 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
Cle Elum
Lakewood
Tukwila
Federal Way
Fife
Westport
Centralia
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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