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 7 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?

American Airlines, Delta, and United Airlines are the most popular carriers 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 July 2026, there are 2 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.

$175 Cheap Flights from Seattle to Allentown in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Seattle to Allentown

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:41 pm - 3:08 pm

SEA

ABE

16h 27m

1 stop

7:30 am - 12:27 am

ABE

SEA

19h 57m

1 stop

$242Multiple Airlines

Thu, Sep 17 - Mon, Sep 21

7:41 pm - 3:08 pm

SEA

ABE

16h 27m

1 stop

7:30 am - 12:27 am

ABE

SEA

19h 57m

1 stop

$346Multiple Airlines

Thu, Sep 17 - Mon, Sep 21

6:12 am - 5:47 pm

SEA

ABE

8h 35m

1 stop

2:00 pm - 7:44 pm

ABE

SEA

8h 44m

1 stop

$349American Airlines

Sun, Nov 1 - Wed, Nov 11

7:00 am - 3:08 pm

SEA

ABE

29h 08m

1 stop

7:30 am - 12:27 am

ABE

SEA

19h 57m

1 stop

$352Multiple Airlines

Thu, Sep 17 - Mon, Sep 21

11:59 pm - 12:15 pm

SEA

ABE

9h 16m

1 stop

6:30 am - 4:35 pm

ABE

SEA

13h 05m

2 stops

$354Delta

Sun, Nov 1 - Wed, Nov 11

7:41 pm - 3:08 pm

SEA

ABE

16h 27m

1 stop

7:30 am - 6:26 pm

ABE

SEA

13h 56m

2 stops

$359Multiple Airlines

Thu, Sep 17 - Mon, Sep 21

7:00 am - 3:08 pm

SEA

ABE

29h 08m

1 stop

7:30 am - 12:27 am

ABE

SEA

19h 57m

1 stop

$361Multiple Airlines

Thu, Sep 17 - Mon, Sep 21

11:00 pm - 9:57 am

SEA

ABE

7h 57m

1 stop

6:15 am - 2:24 pm

ABE

SEA

11h 09m

2 stops

$386United Airlines

Thu, Aug 27 - Tue, Sep 1

6:00 am - 10:26 pm

SEA

ABE

13h 26m

2 stops

6:08 pm - 11:59 pm

ABE

SEA

8h 51m

1 stop

$388Delta

Thu, Sep 17 - Mon, Sep 21

5:50 am - 4:42 pm

SEA

ABE

7h 52m

1 stop

5:12 pm - 12:13 am

ABE

SEA

10h 01m

1 stop

$393American Airlines

Fri, Aug 14 - Sun, Aug 23

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Delta flights from Seattle to Allentown

Our best Delta deals on Seattle to Allentown flight tickets

Delta

Nov 1

SEA11:59 pmSeattle/Tacoma Intl

9h 16m

1 stop

ABE12:15 pmAllentown-Bethlehem

Nov 11

ABE6:30 amAllentown-Bethlehem

13h 05m

2 stops

SEA4:35 pmSeattle/Tacoma Intl

$354

Delta

Sep 17

SEA6:00 amSeattle/Tacoma Intl

13h 26m

2 stops

ABE10:26 pmAllentown-Bethlehem

Sep 21

ABE6:08 pmAllentown-Bethlehem

8h 51m

1 stop

SEA11:59 pmSeattle/Tacoma Intl

$388

Delta

Sep 3

SEA6:00 amSeattle/Tacoma Intl

8h 23m

1 stop

ABE5:23 pmAllentown-Bethlehem

Sep 7

ABE6:09 pmAllentown-Bethlehem

8h 48m

1 stop

SEA11:57 pmSeattle/Tacoma Intl

$417

United Airlines flights from Seattle to Allentown

Our best United Airlines deals on Seattle to Allentown flight tickets

United Airlines

Aug 27

SEA11:00 pmSeattle/Tacoma Intl

7h 57m

1 stop

ABE9:57 amAllentown-Bethlehem

Sep 1

ABE6:15 amAllentown-Bethlehem

11h 09m

2 stops

SEA2:24 pmSeattle/Tacoma Intl

$386

United Airlines

Sep 9

SEA7:35 pmSeattle/Tacoma Intl

11h 04m

2 stops

ABE9:39 amAllentown-Bethlehem

Sep 13

ABE5:36 pmAllentown-Bethlehem

8h 09m

1 stop

SEA10:45 pmSeattle/Tacoma Intl

$403

United Airlines

Sep 30

SEA11:13 pmSeattle/Tacoma Intl

7h 22m

1 stop

ABE9:35 amAllentown-Bethlehem

Oct 3

ABE6:20 amAllentown-Bethlehem

8h 07m

1 stop

SEA11:27 amSeattle/Tacoma Intl

$459

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleAllentown

SEA - ABE

SEAABE

Seattle/Tacoma Intl

Thu 9/17

7:41 pm-3:08 pm

1 stop16h 27m

Allentown-Bethlehem

Mon 9/21

7:30 am-12:27 am

1 stop19h 57m

$242

SeattleAllentown

SEA - ABE

SEAABE

Seattle/Tacoma Intl

Thu 9/17

7:41 pm-3:08 pm

1 stop16h 27m

Allentown-Bethlehem

Mon 9/21

7:30 am-12:27 am

1 stop19h 57m

$346

Quickest round-trip

SeattleAllentown

SEA - ABE

SEAABE

Seattle/Tacoma Intl

Sun 11/1

6:12 am-5:47 pm

1 stop8h 35m

Allentown-Bethlehem

Wed 11/11

2:00 pm-7:44 pm

1 stop8h 44m

$349

SeattleAllentown

SEA - ABE

SEAABE

Seattle/Tacoma Intl

Thu 9/17

7:00 am-3:08 pm

1 stop29h 08m

Allentown-Bethlehem

Mon 9/21

7:30 am-12:27 am

1 stop19h 57m

$352

SeattleAllentown

SEA - ABE

SEAABE

Seattle/Tacoma Intl

Sun 11/1

11:59 pm-12:15 pm

1 stop9h 16m

Allentown-Bethlehem

Wed 11/11

6:30 am-4:35 pm

2 stops13h 05m

$354

SeattleAllentown

SEA - ABE

SEAABE

Seattle/Tacoma Intl

Thu 9/17

7:41 pm-3:08 pm

1 stop16h 27m

Allentown-Bethlehem

Mon 9/21

7:30 am-6:26 pm

2 stops13h 56m

$359

SeattleAllentown

SEA - ABE

SEAABE

Seattle/Tacoma Intl

Thu 9/17

7:00 am-3:08 pm

1 stop29h 08m

Allentown-Bethlehem

Mon 9/21

7:30 am-12:27 am

1 stop19h 57m

$361

SeattleAllentown

SEA - ABE

SEAABE

Seattle/Tacoma Intl

Thu 8/27

11:00 pm-9:57 am

1 stop7h 57m

Allentown-Bethlehem

Tue 9/1

6:15 am-2:24 pm

2 stops11h 09m

$386

SeattleAllentown

SEA - ABE

SEAABE

Seattle/Tacoma Intl

Thu 9/17

6:00 am-10:26 pm

2 stops13h 26m

Allentown-Bethlehem

Mon 9/21

6:08 pm-11:59 pm

1 stop8h 51m

$388

SeattleAllentown

SEA - ABE

SEAABE

Seattle/Tacoma Intl

Fri 8/14

5:50 am-4:42 pm

1 stop7h 52m

Allentown-Bethlehem

Sun 8/23

5:12 pm-12:13 am

1 stop10h 01m

$393

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

What is the cheapest month to fly to Allentown?

The month of April is, on average, the cheapest month to fly to Allentown from Seattle, with most prices found around $0. If you aren’t able to travel to Allentown during the month of April, then flying in March is also cheap. Prices for this month can be found on momondo for an average of $0.

Can stopping save me money on Seattle to Allentown flights?

You could potentially save up to 35% 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	7h 47m
Direct flights	None

The fastest flight from Seattle to Allentown takes 7h 47m

There are no direct flights from Seattle to Allentown. There are no popular flight routes from Seattle to Allentown.

Search flight deals

Frequently asked questions about flying from Seattle to Allentown

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 47m, 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 July 2026, there are 2 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 67% of the total bookings. Other popular airlines include American Airlines with 33%.

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
American Airlines	PriceFrom $289	Free Cancellation	Rating 7.1 11,783 reviews		Search American Airlines flights
United Airlines	PriceFrom $292	Free Cancellation	Rating 7.4 9,948 reviews		Search United 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.