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Cheap flights from Seattle to Allentown from $168

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 9/8. 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 Seattle to Allentown (SEA-ABE)

Cheap round-trip flights

United Airlines Logo
11:54 pm - 11:58 amSEA-ABE
9h 04m1 stop
United Airlines Logo
5:28 pm - 10:20 pmABE-SEA
7h 52m1 stop
$309United Airlines
Find Deal
Tue, Sep 16 - Tue, Sep 23
United Airlines Logo
7:34 pm - 11:58 amSEA-ABE
13h 24m2 stops
United Airlines Logo
1:00 pm - 6:49 pmABE-SEA
8h 49m1 stop
$314United Airlines
Find Deal
Tue, Sep 16 - Tue, Sep 23
United Airlines Logo
7:34 pm - 11:58 amSEA-ABE
13h 24m2 stops
United Airlines Logo
1:00 pm - 9:22 pmABE-SEA
11h 22m2 stops
$319United Airlines
Find Deal
Tue, Sep 16 - Tue, Sep 23
American Airlines Logo
6:42 am - 6:30 pmSEA-ABE
8h 48m1 stop
American Airlines Logo
2:37 pm - 10:29 pmABE-SEA
10h 52m1 stop
$339American Airlines
Find Deal
Wed, Sep 3 - Tue, Sep 9
American Airlines Logo
5:26 am - 6:30 pmSEA-ABE
10h 04m2 stops
American Airlines Logo
2:37 pm - 7:59 pmABE-SEA
8h 22m1 stop
$345American Airlines
Find Deal
Wed, Sep 3 - Tue, Sep 9
American Airlines Logo
8:34 am - 10:05 pmSEA-ABE
10h 31m1 stop
American Airlines Logo
2:37 pm - 10:29 pmABE-SEA
10h 52m1 stop
$368American Airlines
Find Deal
Wed, Sep 3 - Tue, Sep 9
American Airlines Logo
7:44 am - 9:40 pmSEA-ABE
10h 56m2 stops
American Airlines Logo
6:13 am - 12:51 pmABE-SEA
9h 38m1 stop
$378American Airlines
Find Deal
Thu, Oct 30 - Sat, Nov 1
Logo
6:41 am - 4:05 pmSEA-ABE
30h 24m1 stop
Logo
8:30 am - 12:30 amABE-SEA
19h 00m2 stops
$400
Find Deal
Wed, Sep 3 - Fri, Sep 5
Delta Logo
11:40 am - 10:15 pmSEA-ABE
7h 35m1 stop
Delta Logo
6:00 am - 2:01 pmABE-SEA
11h 01m1 stop
$514Delta
Find Deal
Thu, Oct 30 - Sat, Nov 1
Delta Logo
11:18 pm - 12:16 pmSEA-ABE
9h 58m1 stop
Delta Logo
6:14 pm - 11:59 pmABE-SEA
8h 45m1 stop
$553Delta
Find Deal
Sun, Aug 31 - Sun, Sep 7

United Airlines flights from Seattle to Allentown

Our best United Airlines deals on Seattle to Allentown flight tickets
United Airlines
Sep 16
SEA11:54 pmSeattle/Tacoma Intl
9h 04m
1 stop
ABE11:58 amAllentown-Bethlehem
Sep 23
ABE5:28 pmAllentown-Bethlehem
7h 52m
1 stop
SEA10:20 pmSeattle/Tacoma Intl
$309
Find similar
United Airlines
Sep 16
SEA7:34 pmSeattle/Tacoma Intl
13h 24m
2 stops
ABE11:58 amAllentown-Bethlehem
Sep 23
ABE1:00 pmAllentown-Bethlehem
8h 49m
1 stop
SEA6:49 pmSeattle/Tacoma Intl
$314
Find similar
United Airlines
Sep 16
SEA7:34 pmSeattle/Tacoma Intl
13h 24m
2 stops
ABE11:58 amAllentown-Bethlehem
Sep 23
ABE1:00 pmAllentown-Bethlehem
11h 22m
2 stops
SEA9:22 pmSeattle/Tacoma Intl
$319
Find similar

American Airlines flights from Seattle to Allentown

Our best American Airlines deals on Seattle to Allentown flight tickets
American Airlines
Sep 3
SEA6:42 amSeattle/Tacoma Intl
8h 48m
1 stop
ABE6:30 pmAllentown-Bethlehem
Sep 9
ABE2:37 pmAllentown-Bethlehem
10h 52m
1 stop
SEA10:29 pmSeattle/Tacoma Intl
$339
Find similar
American Airlines
Sep 3
SEA5:26 amSeattle/Tacoma Intl
10h 04m
2 stops
ABE6:30 pmAllentown-Bethlehem
Sep 9
ABE2:37 pmAllentown-Bethlehem
8h 22m
1 stop
SEA7:59 pmSeattle/Tacoma Intl
$345
Find similar
American Airlines
Sep 3
SEA8:34 amSeattle/Tacoma Intl
10h 31m
1 stop
ABE10:05 pmAllentown-Bethlehem
Sep 9
ABE2:37 pmAllentown-Bethlehem
10h 52m
1 stop
SEA10:29 pmSeattle/Tacoma Intl
$368
Find similar

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 August 21, 2025.
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

Tue 9/16

11:54 pm-11:58 am

1 stop9h 04m

Allentown-Bethlehem

Tue 9/23

5:28 pm-10:20 pm

1 stop7h 52m

$309

SeattleAllentown

SEA - ABE

SEAABE

Seattle/Tacoma Intl

Tue 9/16

7:34 pm-11:58 am

2 stops13h 24m

Allentown-Bethlehem

Tue 9/23

1:00 pm-6:49 pm

1 stop8h 49m

$314

SeattleAllentown

SEA - ABE

SEAABE

Seattle/Tacoma Intl

Tue 9/16

7:34 pm-11:58 am

2 stops13h 24m

Allentown-Bethlehem

Tue 9/23

1:00 pm-9:22 pm

2 stops11h 22m

$319

SeattleAllentown

SEA - ABE

SEAABE

Seattle/Tacoma Intl

Wed 9/3

6:42 am-6:30 pm

1 stop8h 48m

Allentown-Bethlehem

Tue 9/9

2:37 pm-10:29 pm

1 stop10h 52m

$339

SeattleAllentown

SEA - ABE

SEAABE

Seattle/Tacoma Intl

Wed 9/3

5:26 am-6:30 pm

2 stops10h 04m

Allentown-Bethlehem

Tue 9/9

2:37 pm-7:59 pm

1 stop8h 22m

$345

SeattleAllentown

SEA - ABE

SEAABE

Seattle/Tacoma Intl

Wed 9/3

8:34 am-10:05 pm

1 stop10h 31m

Allentown-Bethlehem

Tue 9/9

2:37 pm-10:29 pm

1 stop10h 52m

$368

SeattleAllentown

SEA - ABE

SEAABE

Seattle/Tacoma Intl

Thu 10/30

7:44 am-9:40 pm

2 stops10h 56m

Allentown-Bethlehem

Sat 11/1

6:13 am-12:51 pm

1 stop9h 38m

$378

SeattleAllentown

SEA - ABE

SEAABE

Seattle/Tacoma Intl

Wed 9/3

6:41 am-4:05 pm

1 stop30h 24m

Allentown-Bethlehem

Fri 9/5

8:30 am-12:30 am

2 stops19h 00m

$400

SeattleAllentown

SEA - ABE

SEAABE

Seattle/Tacoma Intl

Thu 10/30

11:40 am-10:15 pm

1 stop7h 35m

Allentown-Bethlehem

Sat 11/1

6:00 am-2:01 pm

1 stop11h 01m

$514

SeattleAllentown

SEA - ABE

SEAABE

Seattle/Tacoma Intl

Sun 8/31

11:18 pm-12:16 pm

1 stop9h 58m

Allentown-Bethlehem

Sun 9/7

6:14 pm-11:59 pm

1 stop8h 45m

$553

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 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 day to depart on your flight to Allentown?

The cheapest day to depart from Seattle to Allentown is on a Sunday when prices can be found for as low as $380. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to Allentown on Saturday is $980.

What is the cheapest time of day to depart on your flight to Allentown?

In the evening is the cheapest time of day to fly from Seattle to Allentown when you can find flight prices for as low as $593. Flying to Allentown in the evening is an ideal time because this is during off-peak travel hours. Flights in the morning are often more expensive with an average ticket price of $782.

Can stopping save me money on Seattle to Allentown flights?

You could potentially save up to 12% 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

Direct flights

None
There are no direct flights from Seattle to Allentown. There are no popular flight routes from Seattle to Allentown.
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  • 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 7h 35m, 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
DeltaPriceFrom $297Free CancellationRating
7.9
7,983 reviews
Search Delta flights
American AirlinesPriceFrom $372Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $383Free CancellationRating
7.4
8,930 reviews
Search United 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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