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Cheap flights from Seattle to Allentown from $209

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Allentown departing on 2/15. 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
0 bags

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Find the cheapest flights from Seattle to Allentown

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
11:59 pm - 9:56 am
SEA
-
ABE
6h 57m
1 stop
United Airlines Logo
10:31 am - 8:58 pm
ABE
-
SEA
13h 27m
2 stops
$333United Airlines
Mon, Mar 16 - Wed, Mar 18
American Airlines Logo
10:08 pm - 11:40 am
SEA
-
ABE
10h 32m
1 stop
American Airlines Logo
6:04 am - 12:51 pm
ABE
-
SEA
9h 47m
1 stop
$357American Airlines
Mon, Mar 16 - Wed, Mar 18
United Airlines Logo
7:35 pm - 9:56 am
SEA
-
ABE
11h 21m
2 stops
United Airlines Logo
10:31 am - 8:58 pm
ABE
-
SEA
13h 27m
2 stops
$370United Airlines
Mon, Mar 16 - Wed, Mar 18
United Airlines Logo
11:59 pm - 10:01 am
SEA
-
ABE
7h 02m
1 stop
United Airlines Logo
5:23 pm - 10:43 pm
ABE
-
SEA
8h 20m
1 stop
$407United Airlines
Sat, Feb 21 - Tue, Feb 24
Delta Logo
11:00 pm - 12:07 pm
SEA
-
ABE
10h 07m
1 stop
Delta Logo
5:59 pm - 12:40 pm
ABE
-
SEA
21h 41m
2 stops
$411Delta
Tue, Apr 14 - Mon, Apr 20
United Airlines Logo
7:29 pm - 10:01 am
SEA
-
ABE
11h 32m
2 stops
United Airlines Logo
5:23 pm - 10:43 pm
ABE
-
SEA
8h 20m
1 stop
$412United Airlines
Thu, Feb 19 - Tue, Feb 24
American Airlines Logo
10:08 pm - 11:30 am
SEA
-
ABE
10h 22m
1 stop
American Airlines Logo
12:50 pm - 6:29 pm
ABE
-
SEA
8h 39m
1 stop
$427American Airlines
Sat, Feb 14 - Wed, Feb 18
United Airlines Logo
5:10 pm - 10:41 am
SEA
-
ABE
14h 31m
2 stops
United Airlines Logo
6:15 am - 11:32 am
ABE
-
SEA
8h 17m
1 stop
$428United Airlines
Wed, Jan 28 - Sat, Jan 31
United Airlines Logo
11:59 pm - 9:56 am
SEA
-
ABE
6h 57m
1 stop
United Airlines Logo
10:31 am - 11:28 pm
ABE
-
SEA
15h 57m
2 stops
$433United Airlines
Mon, Mar 16 - Wed, Mar 18
United Airlines Logo
5:10 pm - 10:41 am
SEA
-
ABE
14h 31m
2 stops
United Airlines Logo
6:15 am - 6:26 pm
ABE
-
SEA
15h 11m
2 stops
$434United Airlines
Wed, Jan 28 - Sat, Jan 31

United Airlines flights from Seattle to Allentown

Our best United Airlines deals on Seattle to Allentown flight tickets
United Airlines
Mar 16
SEA11:59 pmSeattle/Tacoma Intl
6h 57m
1 stop
ABE9:56 amAllentown-Bethlehem
Mar 18
ABE10:31 amAllentown-Bethlehem
13h 27m
2 stops
SEA8:58 pmSeattle/Tacoma Intl
$333
United Airlines
Mar 16
SEA7:35 pmSeattle/Tacoma Intl
11h 21m
2 stops
ABE9:56 amAllentown-Bethlehem
Mar 18
ABE10:31 amAllentown-Bethlehem
13h 27m
2 stops
SEA8:58 pmSeattle/Tacoma Intl
$370
United Airlines
Feb 21
SEA11:59 pmSeattle/Tacoma Intl
7h 02m
1 stop
ABE10:01 amAllentown-Bethlehem
Feb 24
ABE5:23 pmAllentown-Bethlehem
8h 20m
1 stop
SEA10:43 pmSeattle/Tacoma Intl
$407

American Airlines flights from Seattle to Allentown

Our best American Airlines deals on Seattle to Allentown flight tickets
American Airlines
Mar 16
SEA10:08 pmSeattle/Tacoma Intl
10h 32m
1 stop
ABE11:40 amAllentown-Bethlehem
Mar 18
ABE6:04 amAllentown-Bethlehem
9h 47m
1 stop
SEA12:51 pmSeattle/Tacoma Intl
$357
American Airlines
Feb 14
SEA10:08 pmSeattle/Tacoma Intl
10h 22m
1 stop
ABE11:30 amAllentown-Bethlehem
Feb 18
ABE12:50 pmAllentown-Bethlehem
8h 39m
1 stop
SEA6:29 pmSeattle/Tacoma Intl
$427
American Airlines
Feb 9
SEA7:35 amSeattle/Tacoma Intl
11h 51m
2 stops
ABE10:26 pmAllentown-Bethlehem
Feb 13
ABE12:00 pmAllentown-Bethlehem
12h 17m
2 stops
SEA9:17 pmSeattle/Tacoma Intl
$502

momondo Fare Finder

 
Customize your flight search to find flights from Seattle to Allentown 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 January 12, 2026.
Use the filters below to find and compare flights from Seattle to Allentown that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleAllentown

SEA - ABE

SEAABE

Seattle/Tacoma Intl

Mon 3/16

11:59 pm-9:56 am

1 stop6h 57m

Allentown-Bethlehem

Wed 3/18

10:31 am-8:58 pm

2 stops13h 27m

$333

SeattleAllentown

SEA - ABE

SEAABE

Seattle/Tacoma Intl

Mon 3/16

10:08 pm-11:40 am

1 stop10h 32m

Allentown-Bethlehem

Wed 3/18

6:04 am-12:51 pm

1 stop9h 47m

$357

SeattleAllentown

SEA - ABE

SEAABE

Seattle/Tacoma Intl

Mon 3/16

7:35 pm-9:56 am

2 stops11h 21m

Allentown-Bethlehem

Wed 3/18

10:31 am-8:58 pm

2 stops13h 27m

$370

SeattleAllentown

SEA - ABE

SEAABE

Seattle/Tacoma Intl

Sat 2/21

11:59 pm-10:01 am

1 stop7h 02m

Allentown-Bethlehem

Tue 2/24

5:23 pm-10:43 pm

1 stop8h 20m

$407

SeattleAllentown

SEA - ABE

SEAABE

Seattle/Tacoma Intl

Tue 4/14

11:00 pm-12:07 pm

1 stop10h 07m

Allentown-Bethlehem

Mon 4/20

5:59 pm-12:40 pm

2 stops21h 41m

$411

SeattleAllentown

SEA - ABE

SEAABE

Seattle/Tacoma Intl

Thu 2/19

7:29 pm-10:01 am

2 stops11h 32m

Allentown-Bethlehem

Tue 2/24

5:23 pm-10:43 pm

1 stop8h 20m

$412

SeattleAllentown

SEA - ABE

SEAABE

Seattle/Tacoma Intl

Sat 2/14

10:08 pm-11:30 am

1 stop10h 22m

Allentown-Bethlehem

Wed 2/18

12:50 pm-6:29 pm

1 stop8h 39m

$427

SeattleAllentown

SEA - ABE

SEAABE

Seattle/Tacoma Intl

Wed 1/28

5:10 pm-10:41 am

2 stops14h 31m

Allentown-Bethlehem

Sat 1/31

6:15 am-11:32 am

1 stop8h 17m

$428

SeattleAllentown

SEA - ABE

SEAABE

Seattle/Tacoma Intl

Mon 3/16

11:59 pm-9:56 am

1 stop6h 57m

Allentown-Bethlehem

Wed 3/18

10:31 am-11:28 pm

2 stops15h 57m

$433

SeattleAllentown

SEA - ABE

SEAABE

Seattle/Tacoma Intl

Wed 1/28

5:10 pm-10:41 am

2 stops14h 31m

Allentown-Bethlehem

Sat 1/31

6:15 am-6:26 pm

2 stops15h 11m

$434

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 resultsSorted by cheapest first
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See travel insights to Allentown from

How to get the cheapest flight ticket from Seattle to Allentown

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 Allentown?

The month of January is, on average, the cheapest month to fly to Allentown from Seattle, with most prices found around $408. If you aren’t able to travel to Allentown during the month of January, then flying in December is also cheap. Prices for this month can be found on momondo for an average of $422.

Can stopping save me money on Seattle to Allentown flights?

You could potentially save up to 31% on your flight if you consider stops on a Seattle to Allentown flight.

When to book flights from Seattle to Allentown

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

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

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

Fastest flight time

6h 57m

Direct flights

None
The fastest flight from Seattle to Allentown takes 6h 57m
There are no direct flights from Seattle to Allentown. There are no popular flight routes from Seattle to Allentown.
Search flight deals

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

    The distance between Seattle/Tacoma Intl and Allentown-Bethlehem is about 2336.4 mi. Flights usually cover this in 6h 57m, depending on flying conditions and air traffic around both airports.

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

    Prices for flights from Seattle/Tacoma Intl Airport to Allentown-Bethlehem Airport are refreshed on a daily basis.

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Allentown-Bethlehem Airport.

  • What documentation or ID do you need to fly to Allentown-Bethlehem Airport?

    The necessary travel and health documents for your Allentown-Bethlehem Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

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

Best airlines flying from Seattle to Allentown

Compare and see reviews for airlines that fly from Seattle to Allentown with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $292Free CancellationRating
7.4
9,149 reviews
Search United Airlines flights
DeltaPriceFrom $297Free CancellationRating
7.9
8,039 reviews
Search Delta flights
American AirlinesPriceFrom $308Free CancellationRating
7.2
11,114 reviews
Search American Airlines flights

Traveling to a place near Allentown?

Book flights to Allentown if you plan to visit one of these locations
Lehighton

Why use momondo?

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

It is quick and easy to find Seattle to Allentown flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Allentown that suits you.

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

Yes. momondo enables you to select and highlight flights to Allentown from Seattle with this policy.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Allentown from Seattle.

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

If you are not ready to book a flight from Seattle to Allentown now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Allentown and let you know when they change.

An easier way to manage your Allentown trip

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