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 49% of people opting to fly with this airline when traveling to Allentown. Keep in mind that there are 6 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?

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 September 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.

$195 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

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:25 pm - 9:35 amSEA Seattle/Tacoma Intl-ABE Allentown-Bethlehem

11h 10m2 stops San Francisco Chicago O'Hare Intl

5:43 pm - 10:56 pmABE Allentown-Bethlehem-SEA Seattle/Tacoma Intl

8h 13m1 stop Chicago O'Hare Intl

$374United Airlines

Tue, Sep 29 - Tue, Oct 6

10:45 pm - 12:04 pmSEA Seattle/Tacoma Intl-ABE Allentown-Bethlehem

10h 19m1 stop Atlanta Hartsfield-Jackson

6:00 pm - 11:57 pmABE Allentown-Bethlehem-SEA Seattle/Tacoma Intl

8h 57m1 stop Atlanta Hartsfield-Jackson

$379Delta

Thu, Nov 12 - Mon, Nov 16

7:25 pm - 9:35 amSEA Seattle/Tacoma Intl-ABE Allentown-Bethlehem

11h 10m2 stops San Francisco Chicago O'Hare Intl

5:43 pm - 10:56 pmABE Allentown-Bethlehem-SEA Seattle/Tacoma Intl

8h 13m1 stop Chicago O'Hare Intl

$396United Airlines

Sat, Oct 3 - Sat, Oct 10

12:25 pm - 11:22 pmSEA Seattle/Tacoma Intl-ABE Allentown-Bethlehem

7h 57m1 stop Charlotte Douglas

6:21 pm - 12:36 amABE Allentown-Bethlehem-SEA Seattle/Tacoma Intl

9h 15m1 stop Chicago O'Hare Intl

$399American Airlines

Tue, Sep 29 - Tue, Oct 6

10:43 am - 10:59 pmSEA Seattle/Tacoma Intl-ABE Allentown-Bethlehem

9h 16m1 stop Chicago O'Hare Intl

6:15 pm - 12:35 amABE Allentown-Bethlehem-SEA Seattle/Tacoma Intl

9h 20m1 stop Chicago O'Hare Intl

$399American Airlines

Sun, Nov 1 - Wed, Nov 11

6:18 am - 4:40 pmSEA Seattle/Tacoma Intl-ABE Allentown-Bethlehem

7h 22m1 stop Chicago O'Hare Intl

5:14 pm - 11:10 pmABE Allentown-Bethlehem-SEA Seattle/Tacoma Intl

8h 56m1 stop Charlotte Douglas

$399American Airlines

Sat, Oct 3 - Sat, Oct 10

7:35 pm - 9:39 amSEA Seattle/Tacoma Intl-ABE Allentown-Bethlehem

11h 04m2 stops San Francisco Chicago O'Hare Intl

5:36 pm - 10:45 pmABE Allentown-Bethlehem-SEA Seattle/Tacoma Intl

8h 09m1 stop Chicago O'Hare Intl

$402United Airlines

Wed, Sep 16 - Sat, Sep 19

11:13 pm - 9:35 amSEA Seattle/Tacoma Intl-ABE Allentown-Bethlehem

7h 22m1 stop Chicago O'Hare Intl

5:43 pm - 10:56 pmABE Allentown-Bethlehem-SEA Seattle/Tacoma Intl

8h 13m1 stop Chicago O'Hare Intl

$405United Airlines

Fri, Sep 25 - Sun, Sep 27

4:27 pm - 3:08 pmSEA Seattle/Tacoma Intl-ABE Allentown-Bethlehem

19h 41m1 stop Denver Intl

2:28 pm - 3:08 pmABE Allentown-Bethlehem-SEA Seattle/Tacoma Intl

27h 40m2 stops Orlando Denver Intl

$548Multiple Airlines

Thu, Sep 24 - Sun, Sep 27

11:35 am - 10:16 pmSEA Seattle/Tacoma Intl-ABE Allentown-Bethlehem

7h 41m1 stop Atlanta Hartsfield-Jackson

6:08 pm - 11:58 pmABE Allentown-Bethlehem-SEA Seattle/Tacoma Intl

8h 50m1 stop Atlanta Hartsfield-Jackson

$617Delta

Tue, Sep 15 - Wed, Sep 16

Cheap last minute flights

Enter your travel dates to find the best prices.

9:10 am - 10:23 pmSEA Seattle/Tacoma Intl-ABE Allentown-Bethlehem

10h 13m1 stop Atlanta Hartsfield-Jackson

6:16 am - 12:03 pmABE Allentown-Bethlehem-SEA Seattle/Tacoma Intl

8h 47m1 stop Atlanta Hartsfield-Jackson

$407Delta

Sat, Sep 5 - Sun, Sep 6

7:00 am - 5:01 pmSEA Seattle/Tacoma Intl-ABE Allentown-Bethlehem

7h 01m1 stop Chicago O'Hare Intl

5:36 pm - 10:45 pmABE Allentown-Bethlehem-SEA Seattle/Tacoma Intl

8h 09m1 stop Chicago O'Hare Intl

$415United Airlines

Sat, Sep 5 - Sat, Sep 12

5:20 pm - 9:57 amSEA Seattle/Tacoma Intl-ABE Allentown-Bethlehem

13h 37m2 stops San Francisco Chicago O'Hare Intl

5:36 pm - 10:45 pmABE Allentown-Bethlehem-SEA Seattle/Tacoma Intl

8h 09m1 stop Chicago O'Hare Intl

$420United Airlines

Sat, Sep 5 - Sat, Sep 12

7:00 am - 5:01 pmSEA Seattle/Tacoma Intl-ABE Allentown-Bethlehem

7h 01m1 stop Chicago O'Hare Intl

6:15 am - 2:24 pmABE Allentown-Bethlehem-SEA Seattle/Tacoma Intl

11h 09m2 stops Chicago O'Hare Intl San Francisco

$522United Airlines

Sat, Sep 5 - Sun, Sep 6

9:10 am - 10:23 pmSEA Seattle/Tacoma Intl-ABE Allentown-Bethlehem

10h 13m1 stop Atlanta Hartsfield-Jackson

6:16 am - 2:45 pmABE Allentown-Bethlehem-SEA Seattle/Tacoma Intl

11h 29m1 stop Atlanta Hartsfield-Jackson

$541Delta

Fri, Sep 4 - Sun, Sep 6

5:10 am - 4:27 pmSEA Seattle/Tacoma Intl-ABE Allentown-Bethlehem

8h 17m1 stop Charlotte Douglas

6:00 am - 11:15 amABE Allentown-Bethlehem-SEA Seattle/Tacoma Intl

8h 15m1 stop Charlotte Douglas

$581American Airlines

Fri, Sep 4 - Mon, Sep 7

5:10 am - 4:27 pmSEA Seattle/Tacoma Intl-ABE Allentown-Bethlehem

8h 17m1 stop Charlotte Douglas

6:00 am - 11:15 amABE Allentown-Bethlehem-SEA Seattle/Tacoma Intl

8h 15m1 stop Charlotte Douglas

$601American Airlines

Fri, Sep 4 - Mon, Sep 7

10:56 am - 10:20 pmSEA Seattle/Tacoma Intl-ABE Allentown-Bethlehem

8h 24m1 stop Chicago O'Hare Intl

6:00 am - 11:15 amABE Allentown-Bethlehem-SEA Seattle/Tacoma Intl

8h 15m1 stop Charlotte Douglas

$648American Airlines

Sat, Sep 5 - Mon, Sep 7

9:29 pm - 3:38 pmSEA Seattle/Tacoma Intl-ABE Allentown-Bethlehem

15h 09m2 stops Las Vegas Harry Reid Intl Denver Intl

8:00 am - 9:19 amABE Allentown-Bethlehem-SEA Seattle/Tacoma Intl

28h 19m1 stop Denver Intl

$700Multiple Airlines

Thu, Sep 3 - Mon, Sep 7

6:00 am - 5:23 pmSEA Seattle/Tacoma Intl-ABE Allentown-Bethlehem

8h 23m1 stop Atlanta Hartsfield-Jackson

6:16 am - 1:40 pmABE Allentown-Bethlehem-SEA Seattle/Tacoma Intl

10h 24m1 stop Atlanta Hartsfield-Jackson

$700Delta

Thu, Sep 3 - Sun, Sep 6

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United Airlines flights from Seattle to Allentown

Our best United Airlines deals on Seattle to Allentown flight tickets

United Airlines

Sep 29

SEA7:25 pmSeattle/Tacoma Intl

11h 10m

2 stops

ABE9:35 amAllentown-Bethlehem

Oct 6

ABE5:43 pmAllentown-Bethlehem

8h 13m

1 stop

SEA10:56 pmSeattle/Tacoma Intl

$374

United Airlines

Oct 3

SEA7:25 pmSeattle/Tacoma Intl

11h 10m

2 stops

ABE9:35 amAllentown-Bethlehem

Oct 10

ABE5:43 pmAllentown-Bethlehem

8h 13m

1 stop

SEA10:56 pmSeattle/Tacoma Intl

$396

United Airlines

Sep 16

SEA7:35 pmSeattle/Tacoma Intl

11h 04m

2 stops

ABE9:39 amAllentown-Bethlehem

Sep 19

ABE5:36 pmAllentown-Bethlehem

8h 09m

1 stop

SEA10:45 pmSeattle/Tacoma Intl

$402

Delta flights from Seattle to Allentown

Our best Delta deals on Seattle to Allentown flight tickets

Delta

Nov 12

SEA10:45 pmSeattle/Tacoma Intl

10h 19m

1 stop

ABE12:04 pmAllentown-Bethlehem

Nov 16

ABE6:00 pmAllentown-Bethlehem

8h 57m

1 stop

SEA11:57 pmSeattle/Tacoma Intl

$379

Delta

Sep 5

SEA9:10 amSeattle/Tacoma Intl

10h 13m

1 stop

ABE10:23 pmAllentown-Bethlehem

Sep 6

ABE6:16 amAllentown-Bethlehem

8h 47m

1 stop

SEA12:03 pmSeattle/Tacoma Intl

$407

Delta

Sep 4

SEA9:10 amSeattle/Tacoma Intl

10h 13m

1 stop

ABE10:23 pmAllentown-Bethlehem

Sep 6

ABE6:16 amAllentown-Bethlehem

11h 29m

1 stop

SEA2:45 pmSeattle/Tacoma Intl

$541

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleAllentown

SEA Seattle/Tacoma Intl - ABE Allentown-Bethlehem

SEAABE

Seattle/Tacoma Intl

Tue 9/29

7:25 pm-9:35 am

2 stops11h 10m

Allentown-Bethlehem

Tue 10/6

5:43 pm-10:56 pm

1 stop8h 13m

$374

SeattleAllentown

SEA Seattle/Tacoma Intl - ABE Allentown-Bethlehem

SEAABE

Seattle/Tacoma Intl

Thu 11/12

10:45 pm-12:04 pm

1 stop10h 19m

Allentown-Bethlehem

Mon 11/16

6:00 pm-11:57 pm

1 stop8h 57m

$379

SeattleAllentown

SEA Seattle/Tacoma Intl - ABE Allentown-Bethlehem

SEAABE

Seattle/Tacoma Intl

Sat 10/3

7:25 pm-9:35 am

2 stops11h 10m

Allentown-Bethlehem

Sat 10/10

5:43 pm-10:56 pm

1 stop8h 13m

$396

SeattleAllentown

SEA Seattle/Tacoma Intl - ABE Allentown-Bethlehem

SEAABE

Seattle/Tacoma Intl

Tue 9/29

12:25 pm-11:22 pm

1 stop7h 57m

Allentown-Bethlehem

Tue 10/6

6:21 pm-12:36 am

1 stop9h 15m

$399

SeattleAllentown

SEA Seattle/Tacoma Intl - ABE Allentown-Bethlehem

SEAABE

Seattle/Tacoma Intl

Sun 11/1

10:43 am-10:59 pm

1 stop9h 16m

Allentown-Bethlehem

Wed 11/11

6:15 pm-12:35 am

1 stop9h 20m

$399

SeattleAllentown

SEA Seattle/Tacoma Intl - ABE Allentown-Bethlehem

SEAABE

Seattle/Tacoma Intl

Sat 10/3

6:18 am-4:40 pm

1 stop7h 22m

Allentown-Bethlehem

Sat 10/10

5:14 pm-11:10 pm

1 stop8h 56m

$399

SeattleAllentown

SEA Seattle/Tacoma Intl - ABE Allentown-Bethlehem

SEAABE

Seattle/Tacoma Intl

Wed 9/16

7:35 pm-9:39 am

2 stops11h 04m

Allentown-Bethlehem

Sat 9/19

5:36 pm-10:45 pm

1 stop8h 09m

$402

Quickest round-trip

SeattleAllentown

SEA Seattle/Tacoma Intl - ABE Allentown-Bethlehem

SEAABE

Seattle/Tacoma Intl

Fri 9/25

11:13 pm-9:35 am

1 stop7h 22m

Allentown-Bethlehem

Sun 9/27

5:43 pm-10:56 pm

1 stop8h 13m

$405

SeattleAllentown

SEA Seattle/Tacoma Intl - ABE Allentown-Bethlehem

SEAABE

Seattle/Tacoma Intl

Thu 9/24

4:27 pm-3:08 pm

1 stop19h 41m

Allentown-Bethlehem

Sun 9/27

2:28 pm-3:08 pm

2 stops27h 40m

$548

SeattleAllentown

SEA Seattle/Tacoma Intl - ABE Allentown-Bethlehem

SEAABE

Seattle/Tacoma Intl

Tue 9/15

11:35 am-10:16 pm

1 stop7h 41m

Allentown-Bethlehem

Wed 9/16

6:08 pm-11:58 pm

1 stop8h 50m

$617

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 17 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 December is, on average, the cheapest month to fly to Allentown from Seattle, with most prices found around $394. If you aren’t able to travel to Allentown during the month of December, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $443.

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

Best Price Found	$195
Fastest flight time	7h 01m
Direct flights	None

The best one-way flight to Allentown from Seattle in the past 72 hours is $195. The best round-trip flight deal from Seattle to Allentown found on momondo in the last 72 hours is $374.

The fastest flight from Seattle to Allentown takes 7h 01m

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 01m, 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 September 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 69% of the total bookings. Other popular airlines include American Airlines with 31%.

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 12,026 reviews		Search American Airlines flights
United Airlines	PriceFrom $292	Free Cancellation	Rating 7.4 10,158 reviews		Search United Airlines flights

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.