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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 8/11. 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.
Multiple Airlines Logo
2:54 pm - 9:19 am
ABE
-
SEA
21h 25m
1 stop
Multiple Airlines Logo
7:06 pm - 9:07 pm
SEA
-
ABE
23h 01m
2 stops
$306Multiple Airlines
Mon, Aug 17 - Wed, Aug 26
Multiple Airlines Logo
2:54 pm - 1:22 pm
ABE
-
SEA
25h 28m
1 stop
Multiple Airlines Logo
7:06 pm - 9:07 pm
SEA
-
ABE
23h 01m
2 stops
$308Multiple Airlines
Mon, Aug 17 - Wed, Aug 26
Multiple Airlines Logo
7:00 am - 9:19 am
ABE
-
SEA
29h 19m
1 stop
Multiple Airlines Logo
7:06 pm - 3:41 pm
SEA
-
ABE
17h 35m
1 stop
$347Multiple Airlines
Mon, Aug 24 - Sun, Aug 30
United Airlines Logo
5:46 pm - 10:56 pm
ABE
-
SEA
8h 10m
1 stop
United Airlines Logo
11:13 pm - 9:35 am
SEA
-
ABE
7h 22m
1 stop
$349United Airlines
Fri, Oct 2 - Mon, Oct 5
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
Delta Logo
6:08 pm - 11:57 pm
ABE
-
SEA
8h 49m
1 stop
Delta Logo
11:59 pm - 12:28 pm
SEA
-
ABE
9h 29m
1 stop
$359Delta
Mon, Aug 10 - Wed, Aug 19
Multiple Airlines Logo
2:54 pm - 9:04 am
ABE
-
SEA
21h 10m
1 stop
Multiple Airlines Logo
7:06 pm - 11:14 pm
SEA
-
ABE
25h 08m
1 stop
$360Multiple Airlines
Fri, Aug 7 - Thu, Aug 13
American Airlines Logo
5:12 pm - 11:59 pm
ABE
-
SEA
9h 47m
1 stop
American Airlines Logo
5:50 am - 4:42 pm
SEA
-
ABE
7h 52m
1 stop
$377American Airlines
Fri, Aug 14 - Tue, Aug 18
Delta Logo
1:10 pm - 7:05 pm
ABE
-
SEA
8h 55m
1 stop
Delta Logo
6:00 am - 5:23 pm
SEA
-
ABE
8h 23m
1 stop
$384Delta
Wed, Aug 26 - Mon, Aug 31
Multiple Airlines Logo
8:50 pm - 11:04 am
ABE
-
SEA
41h 14m
2 stops
Multiple Airlines Logo
7:06 pm - 11:14 pm
SEA
-
ABE
25h 08m
1 stop
$385Multiple Airlines
Fri, Aug 7 - Thu, Aug 13

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American Airlines flights from Allentown to Seattle

Our best American Airlines deals on Allentown to Seattle flight tickets
American Airlines
Aug 14
ABE5:12 pmAllentown-Bethlehem
9h 47m
1 stop
SEA11:59 pmSeattle/Tacoma Intl
Aug 18
SEA5:50 amSeattle/Tacoma Intl
7h 52m
1 stop
ABE4:42 pmAllentown-Bethlehem
$377
American Airlines
Oct 2
ABE5:10 pmAllentown-Bethlehem
10h 01m
1 stop
SEA12:11 amSeattle/Tacoma Intl
Oct 5
SEA6:12 amSeattle/Tacoma Intl
8h 35m
1 stop
ABE5:47 pmAllentown-Bethlehem
$393
American Airlines
Aug 13
ABE5:12 pmAllentown-Bethlehem
9h 23m
1 stop
SEA11:35 pmSeattle/Tacoma Intl
Aug 17
SEA5:50 amSeattle/Tacoma Intl
7h 52m
1 stop
ABE4:42 pmAllentown-Bethlehem
$440

United Airlines flights from Allentown to Seattle

Our best United Airlines deals on Allentown to Seattle flight tickets
United Airlines
Oct 2
ABE5:46 pmAllentown-Bethlehem
8h 10m
1 stop
SEA10:56 pmSeattle/Tacoma Intl
Oct 5
SEA11:13 pmSeattle/Tacoma Intl
7h 22m
1 stop
ABE9:35 amAllentown-Bethlehem
$349
United Airlines
Sep 9
ABE6:15 amAllentown-Bethlehem
12h 59m
2 stops
SEA4:14 pmSeattle/Tacoma Intl
Sep 13
SEA11:00 pmSeattle/Tacoma Intl
7h 39m
1 stop
ABE9:39 amAllentown-Bethlehem
$388
United Airlines
Oct 24
ABE5:46 pmAllentown-Bethlehem
8h 10m
1 stop
SEA10:56 pmSeattle/Tacoma Intl
Oct 28
SEA11:03 pmSeattle/Tacoma Intl
7h 53m
1 stop
ABE9:56 amAllentown-Bethlehem
$459

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 July 15, 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

Mon 8/17

2:54 pm-9:19 am

1 stop21h 25m

Seattle/Tacoma Intl

Wed 8/26

7:06 pm-9:07 pm

2 stops23h 01m

$306

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Mon 8/17

2:54 pm-1:22 pm

1 stop25h 28m

Seattle/Tacoma Intl

Wed 8/26

7:06 pm-9:07 pm

2 stops23h 01m

$308

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Mon 8/24

7:00 am-9:19 am

1 stop29h 19m

Seattle/Tacoma Intl

Sun 8/30

7:06 pm-3:41 pm

1 stop17h 35m

$347
Quickest round-trip

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Fri 10/2

5:46 pm-10:56 pm

1 stop8h 10m

Seattle/Tacoma Intl

Mon 10/5

11:13 pm-9:35 am

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

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Mon 8/10

6:08 pm-11:57 pm

1 stop8h 49m

Seattle/Tacoma Intl

Wed 8/19

11:59 pm-12:28 pm

1 stop9h 29m

$359

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Fri 8/7

2:54 pm-9:04 am

1 stop21h 10m

Seattle/Tacoma Intl

Thu 8/13

7:06 pm-11:14 pm

1 stop25h 08m

$360

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Fri 8/14

5:12 pm-11:59 pm

1 stop9h 47m

Seattle/Tacoma Intl

Tue 8/18

5:50 am-4:42 pm

1 stop7h 52m

$377

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Wed 8/26

1:10 pm-7:05 pm

1 stop8h 55m

Seattle/Tacoma Intl

Mon 8/31

6:00 am-5:23 pm

1 stop8h 23m

$384

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Fri 8/7

8:50 pm-11:04 am

2 stops41h 14m

Seattle/Tacoma Intl

Thu 8/13

7:06 pm-11:14 pm

1 stop25h 08m

$385

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
9,988 reviews
Search United Airlines flights
American AirlinesPriceFrom $276Free CancellationRating
7.1
11,806 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
Fife
Federal Way
Cle Elum
Marysville
Centralia
Kirkland
Shoreline
Lacey

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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