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Cheap flights from Allentown to Seattle from $204

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
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
12:57 pm - 8:22 pm
ABE
-
SEA
10h 25m
1 stop
American Airlines Logo
10:29 pm - 11:27 am
SEA
-
ABE
9h 58m
1 stop
$367American Airlines
Tue, May 5 - Tue, May 12
American Airlines Logo
12:57 pm - 8:22 pm
ABE
-
SEA
10h 25m
1 stop
American Airlines Logo
10:29 pm - 11:27 am
SEA
-
ABE
9h 58m
1 stop
$377American Airlines
Tue, May 5 - Tue, May 12
Multiple Airlines Logo
3:46 pm - 9:27 am
ABE
-
SEA
44h 41m
2 stops
Multiple Airlines Logo
9:14 pm - 11:04 pm
SEA
-
ABE
22h 50m
1 stop
$400Multiple Airlines
Thu, May 14 - Thu, May 21
United Airlines Logo
5:35 pm - 10:42 pm
ABE
-
SEA
8h 07m
1 stop
United Airlines Logo
7:36 pm - 9:58 am
SEA
-
ABE
11h 22m
2 stops
$402United Airlines
Tue, May 5 - Tue, May 12
American Airlines Logo
12:00 pm - 7:14 pm
ABE
-
SEA
10h 14m
1 stop
American Airlines Logo
10:08 pm - 11:40 am
SEA
-
ABE
10h 32m
1 stop
$417American Airlines
Thu, Mar 5 - Mon, Mar 9
United Airlines Logo
5:36 pm - 10:46 pm
ABE
-
SEA
8h 10m
1 stop
United Airlines Logo
10:40 pm - 10:06 am
SEA
-
ABE
8h 26m
1 stop
$429United Airlines
Sat, Jul 4 - Thu, Jul 9
American Airlines Logo
12:00 pm - 7:14 pm
ABE
-
SEA
10h 14m
1 stop
American Airlines Logo
12:27 pm - 11:31 pm
SEA
-
ABE
8h 04m
1 stop
$432American Airlines
Fri, Mar 20 - Tue, Mar 24
United Airlines Logo
5:36 pm - 10:46 pm
ABE
-
SEA
8h 10m
1 stop
United Airlines Logo
5:30 pm - 10:06 am
SEA
-
ABE
13h 36m
2 stops
$434United Airlines
Sat, Jul 4 - Fri, Jul 10
United Airlines Logo
10:38 am - 8:48 pm
ABE
-
SEA
13h 10m
2 stops
United Airlines Logo
10:40 pm - 10:06 am
SEA
-
ABE
8h 26m
1 stop
$453United Airlines
Sat, Jul 4 - Wed, Jul 8
Delta Logo
1:00 pm - 8:42 pm
ABE
-
SEA
10h 42m
1 stop
Delta Logo
11:35 pm - 12:08 pm
SEA
-
ABE
9h 33m
1 stop
$454Delta
Wed, Aug 5 - Tue, Aug 18

Delta flights from Allentown to Seattle

Our best Delta deals on Allentown to Seattle flight tickets
Delta
Aug 5
ABE1:00 pmAllentown-Bethlehem
10h 42m
1 stop
SEA8:42 pmSeattle/Tacoma Intl
Aug 18
SEA11:35 pmSeattle/Tacoma Intl
9h 33m
1 stop
ABE12:08 pmAllentown-Bethlehem
$454
Delta
Aug 5
ABE1:00 pmAllentown-Bethlehem
10h 42m
1 stop
SEA8:42 pmSeattle/Tacoma Intl
Aug 19
SEA5:30 pmSeattle/Tacoma Intl
26h 26m
1 stop
ABE10:56 pmAllentown-Bethlehem
$477
Delta
Aug 9
ABE1:00 pmAllentown-Bethlehem
10h 42m
1 stop
SEA8:42 pmSeattle/Tacoma Intl
Aug 18
SEA11:35 pmSeattle/Tacoma Intl
9h 33m
1 stop
ABE12:08 pmAllentown-Bethlehem
$519

American Airlines flights from Allentown to Seattle

Our best American Airlines deals on Allentown to Seattle flight tickets
American Airlines
May 5
ABE12:57 pmAllentown-Bethlehem
10h 25m
1 stop
SEA8:22 pmSeattle/Tacoma Intl
May 12
SEA10:29 pmSeattle/Tacoma Intl
9h 58m
1 stop
ABE11:27 amAllentown-Bethlehem
$367
American Airlines
May 5
ABE12:57 pmAllentown-Bethlehem
10h 25m
1 stop
SEA8:22 pmSeattle/Tacoma Intl
May 12
SEA10:29 pmSeattle/Tacoma Intl
9h 58m
1 stop
ABE11:27 amAllentown-Bethlehem
$377
American Airlines
Mar 5
ABE12:00 pmAllentown-Bethlehem
10h 14m
1 stop
SEA7:14 pmSeattle/Tacoma Intl
Mar 9
SEA10:08 pmSeattle/Tacoma Intl
10h 32m
1 stop
ABE11:40 amAllentown-Bethlehem
$417

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 February 13, 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

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Tue 5/5

12:57 pm-8:22 pm

1 stop10h 25m

Seattle/Tacoma Intl

Tue 5/12

10:29 pm-11:27 am

1 stop9h 58m

$367

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Tue 5/5

12:57 pm-8:22 pm

1 stop10h 25m

Seattle/Tacoma Intl

Tue 5/12

10:29 pm-11:27 am

1 stop9h 58m

$377

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Thu 5/14

3:46 pm-9:27 am

2 stops44h 41m

Seattle/Tacoma Intl

Thu 5/21

9:14 pm-11:04 pm

1 stop22h 50m

$400

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Tue 5/5

5:35 pm-10:42 pm

1 stop8h 07m

Seattle/Tacoma Intl

Tue 5/12

7:36 pm-9:58 am

2 stops11h 22m

$402

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Thu 3/5

12:00 pm-7:14 pm

1 stop10h 14m

Seattle/Tacoma Intl

Mon 3/9

10:08 pm-11:40 am

1 stop10h 32m

$417

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Sat 7/4

5:36 pm-10:46 pm

1 stop8h 10m

Seattle/Tacoma Intl

Thu 7/9

10:40 pm-10:06 am

1 stop8h 26m

$429

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Fri 3/20

12:00 pm-7:14 pm

1 stop10h 14m

Seattle/Tacoma Intl

Tue 3/24

12:27 pm-11:31 pm

1 stop8h 04m

$432

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Sat 7/4

5:36 pm-10:46 pm

1 stop8h 10m

Seattle/Tacoma Intl

Fri 7/10

5:30 pm-10:06 am

2 stops13h 36m

$434

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Sat 7/4

10:38 am-8:48 pm

2 stops13h 10m

Seattle/Tacoma Intl

Wed 7/8

10:40 pm-10:06 am

1 stop8h 26m

$453

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Wed 8/5

1:00 pm-8:42 pm

1 stop10h 42m

Seattle/Tacoma Intl

Tue 8/18

11:35 pm-12:08 pm

1 stop9h 33m

$454

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 cheapest month to fly to Seattle?

In general, October 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 $294. If you don’t want to visit Seattle in October, then you should wait until March to fly from Allentown, when ticket prices are also cheap, with an average price of $388.

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 $289Free CancellationRating
7.2
11,275 reviews
Search American Airlines flights
United AirlinesPriceFrom $293Free CancellationRating
7.4
9,283 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
Marysville
Redmond
Puyallup
Cle Elum
Lakewood
Tukwila
Federal Way
Kirkland
Westport
Centralia
Fife
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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