What airlines fly to Allentown?

Alaska Airlines, United Airlines and American Airlines are the top three most popular airlines that fly to Allentown from Seattle according to our data. Alaska Airlines is the first choice among our users, with 51% of people opting to fly with this airline when traveling to Allentown. Keep in mind that there are 9 different airlines that fly to Allentown on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Seattle/Tacoma Intl to Allentown-Bethlehem?

United Airlines is the most popular carrier operating from Seattle/Tacoma Intl to Allentown-Bethlehem

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?

As of March 2026, there are 3 operators available to choose from 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.

$179 Cheap Flights from Seattle to Allentown in 2026

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Find the cheapest flights from Seattle to Allentown

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

10:27 am - 11:19 pm

SEA

ABE

9h 52m

1 stop

5:06 pm - 12:16 am

ABE

SEA

10h 10m

1 stop

$349American Airlines

Wed, Jun 10 - Mon, Jun 15

10:29 pm - 11:27 am

SEA

ABE

9h 58m

1 stop

12:57 pm - 6:44 pm

ABE

SEA

8h 47m

1 stop

$381American Airlines

Tue, Apr 21 - Tue, Apr 28

6:00 am - 4:19 pm

SEA

ABE

7h 19m

1 stop

5:06 pm - 12:16 am

ABE

SEA

10h 10m

1 stop

$408American Airlines

Sat, May 23 - Mon, May 25

11:52 pm - 9:38 am

SEA

ABE

6h 46m

1 stop

2:23 pm - 1:13 am

ABE

SEA

13h 50m

2 stops

$421United Airlines

Sun, May 31 - Sat, Jun 6

11:52 pm - 9:38 am

SEA

ABE

6h 46m

1 stop

5:36 pm - 10:39 pm

ABE

SEA

8h 03m

1 stop

$436United Airlines

Sun, May 31 - Sat, Jun 6

11:59 pm - 9:48 am

SEA

ABE

6h 49m

1 stop

5:40 pm - 10:47 pm

ABE

SEA

8h 07m

1 stop

$459United Airlines

Sat, Apr 25 - Wed, May 6

5:45 pm - 9:48 am

SEA

ABE

13h 03m

2 stops

5:43 pm - 10:42 pm

ABE

SEA

7h 59m

1 stop

$461United Airlines

Tue, Apr 21 - Tue, Apr 28

7:37 pm - 9:48 am

SEA

ABE

11h 11m

2 stops

5:40 pm - 10:47 pm

ABE

SEA

8h 07m

1 stop

$464United Airlines

Mon, Apr 27 - Tue, May 5

10:29 pm - 11:27 am

SEA

ABE

9h 58m

1 stop

6:04 am - 12:33 pm

ABE

SEA

9h 29m

1 stop

$469American Airlines

Tue, Apr 14 - Thu, Apr 16

11:52 pm - 9:38 am

SEA

ABE

6h 46m

1 stop

5:36 pm - 10:39 pm

ABE

SEA

8h 03m

1 stop

$479United Airlines

Sun, May 31 - Sat, Jun 6

American Airlines flights from Seattle to Allentown

Our best American Airlines deals on Seattle to Allentown flight tickets

American Airlines

Jun 10

SEA10:27 amSeattle/Tacoma Intl

9h 52m

1 stop

ABE11:19 pmAllentown-Bethlehem

Jun 15

ABE5:06 pmAllentown-Bethlehem

10h 10m

1 stop

SEA12:16 amSeattle/Tacoma Intl

$349

American Airlines

Apr 21

SEA10:29 pmSeattle/Tacoma Intl

9h 58m

1 stop

ABE11:27 amAllentown-Bethlehem

Apr 28

ABE12:57 pmAllentown-Bethlehem

8h 47m

1 stop

SEA6:44 pmSeattle/Tacoma Intl

$381

American Airlines

May 23

SEA6:00 amSeattle/Tacoma Intl

7h 19m

1 stop

ABE4:19 pmAllentown-Bethlehem

May 25

ABE5:06 pmAllentown-Bethlehem

10h 10m

1 stop

SEA12:16 amSeattle/Tacoma Intl

$408

United Airlines flights from Seattle to Allentown

Our best United Airlines deals on Seattle to Allentown flight tickets

United Airlines

May 31

SEA11:52 pmSeattle/Tacoma Intl

6h 46m

1 stop

ABE9:38 amAllentown-Bethlehem

Jun 6

ABE2:23 pmAllentown-Bethlehem

13h 50m

2 stops

SEA1:13 amSeattle/Tacoma Intl

$421

United Airlines

May 31

SEA11:52 pmSeattle/Tacoma Intl

6h 46m

1 stop

ABE9:38 amAllentown-Bethlehem

Jun 6

ABE5:36 pmAllentown-Bethlehem

8h 03m

1 stop

SEA10:39 pmSeattle/Tacoma Intl

$436

United Airlines

Apr 25

SEA11:59 pmSeattle/Tacoma Intl

6h 49m

1 stop

ABE9:48 amAllentown-Bethlehem

May 6

ABE5:40 pmAllentown-Bethlehem

8h 07m

1 stop

SEA10:47 pmSeattle/Tacoma Intl

$459

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleAllentown

SEA - ABE

SEAABE

Seattle/Tacoma Intl

Wed 6/10

10:27 am-11:19 pm

1 stop9h 52m

Allentown-Bethlehem

Mon 6/15

5:06 pm-12:16 am

1 stop10h 10m

$349

SeattleAllentown

SEA - ABE

SEAABE

Seattle/Tacoma Intl

Tue 4/21

10:29 pm-11:27 am

1 stop9h 58m

Allentown-Bethlehem

Tue 4/28

12:57 pm-6:44 pm

1 stop8h 47m

$381

SeattleAllentown

SEA - ABE

SEAABE

Seattle/Tacoma Intl

Sat 5/23

6:00 am-4:19 pm

1 stop7h 19m

Allentown-Bethlehem

Mon 5/25

5:06 pm-12:16 am

1 stop10h 10m

$408

SeattleAllentown

SEA - ABE

SEAABE

Seattle/Tacoma Intl

Sun 5/31

11:52 pm-9:38 am

1 stop6h 46m

Allentown-Bethlehem

Sat 6/6

2:23 pm-1:13 am

2 stops13h 50m

$421

Quickest round-trip

SeattleAllentown

SEA - ABE

SEAABE

Seattle/Tacoma Intl

Sun 5/31

11:52 pm-9:38 am

1 stop6h 46m

Allentown-Bethlehem

Sat 6/6

5:36 pm-10:39 pm

1 stop8h 03m

$436

SeattleAllentown

SEA - ABE

SEAABE

Seattle/Tacoma Intl

Sat 4/25

11:59 pm-9:48 am

1 stop6h 49m

Allentown-Bethlehem

Wed 5/6

5:40 pm-10:47 pm

1 stop8h 07m

$459

SeattleAllentown

SEA - ABE

SEAABE

Seattle/Tacoma Intl

Tue 4/21

5:45 pm-9:48 am

2 stops13h 03m

Allentown-Bethlehem

Tue 4/28

5:43 pm-10:42 pm

1 stop7h 59m

$461

SeattleAllentown

SEA - ABE

SEAABE

Seattle/Tacoma Intl

Mon 4/27

7:37 pm-9:48 am

2 stops11h 11m

Allentown-Bethlehem

Tue 5/5

5:40 pm-10:47 pm

1 stop8h 07m

$464

SeattleAllentown

SEA - ABE

SEAABE

Seattle/Tacoma Intl

Tue 4/14

10:29 pm-11:27 am

1 stop9h 58m

Allentown-Bethlehem

Thu 4/16

6:04 am-12:33 pm

1 stop9h 29m

$469

SeattleAllentown

SEA - ABE

SEAABE

Seattle/Tacoma Intl

Sun 5/31

11:52 pm-9:38 am

1 stop6h 46m

Allentown-Bethlehem

Sat 6/6

5:36 pm-10:39 pm

1 stop8h 03m

$479

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

Can stopping save me money on Seattle to Allentown flights?

You could potentially save up to 2% on your flight if you consider stops on a Seattle to Allentown flight.

How have Seattle to Allentown flight prices changed over time?

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 46m
Direct flights	None

The fastest flight from Seattle to Allentown takes 6h 46m

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 46m, 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?
As of March 2026, there are 3 operators available to choose from 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?
Based on momondo bookings for flights between Seattle and Allentown, the leading airline is United Airlines, making up 49% of the total bookings. Other popular airlines include American Airlines with 35% and Delta with 16%.

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 Airlines	PriceFrom $292	Free Cancellation	Rating 7.4 9,499 reviews	Search United Airlines flights
Delta	PriceFrom $297	Free Cancellation	Rating 7.9 8,356 reviews	Search Delta flights
American Airlines	PriceFrom $308	Free Cancellation	Rating 7.1 11,520 reviews	Search American Airlines flights

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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.