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 8 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 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 May 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

Q: What is the typical price of a round-trip flight between Seattle and Allentown?

Prices are currently low for flights on this route. Typical prices usually range from $1,077 to $573. The lowest price recently found on this route was $349.

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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.

11:34 am - 10:15 pm

SEA

ABE

7h 41m

1 stop

5:53 pm - 10:53 pm

ABE

SEA

8h 00m

1 stop

$349American Airlines

Sat, Oct 17 - Sat, Oct 24

6:23 am - 4:48 pm

SEA

ABE

7h 25m

1 stop

6:00 am - 2:52 pm

ABE

SEA

11h 52m

2 stops

$354American Airlines

Sat, Oct 17 - Sat, Oct 24

6:00 am - 4:08 pm

SEA

ABE

7h 08m

1 stop

5:16 pm - 12:41 am

ABE

SEA

10h 25m

1 stop

$358American Airlines

Sat, Jun 6 - Fri, Jun 12

10:27 am - 11:54 pm

SEA

ABE

10h 27m

1 stop

5:16 pm - 12:41 am

ABE

SEA

10h 25m

1 stop

$397American Airlines

Sat, Jun 6 - Sun, Jun 7

10:27 am - 11:19 pm

SEA

ABE

9h 52m

1 stop

5:16 pm - 12:41 am

ABE

SEA

10h 25m

1 stop

$398American Airlines

Wed, Jun 10 - Sun, Jun 14

10:40 pm - 10:06 am

SEA

ABE

8h 26m

1 stop

5:36 pm - 12:14 am

ABE

SEA

9h 38m

1 stop

$409United Airlines

Sun, Oct 18 - Fri, Oct 23

10:40 pm - 10:03 am

SEA

ABE

8h 23m

1 stop

10:42 am - 8:53 pm

ABE

SEA

13h 11m

2 stops

$410United Airlines

Tue, May 26 - Sat, May 30

11:59 pm - 12:22 pm

SEA

ABE

9h 23m

1 stop

6:13 pm - 11:57 pm

ABE

SEA

8h 44m

1 stop

$434Delta

Mon, Aug 10 - Tue, Aug 11

6:00 am - 4:38 pm

SEA

ABE

7h 38m

1 stop

5:16 pm - 12:41 am

ABE

SEA

10h 25m

1 stop

$444American Airlines

Fri, Jun 12 - Mon, Jun 15

10:40 pm - 10:03 am

SEA

ABE

8h 23m

1 stop

6:15 am - 11:38 am

ABE

SEA

8h 23m

1 stop

$448United Airlines

Tue, May 26 - Sat, May 30

United Airlines flights from Seattle to Allentown

Our best United Airlines deals on Seattle to Allentown flight tickets

United Airlines

Oct 18

SEA10:40 pmSeattle/Tacoma Intl

8h 26m

1 stop

ABE10:06 amAllentown-Bethlehem

Oct 23

ABE5:36 pmAllentown-Bethlehem

9h 38m

1 stop

SEA12:14 amSeattle/Tacoma Intl

$409

United Airlines

May 26

SEA10:40 pmSeattle/Tacoma Intl

8h 23m

1 stop

ABE10:03 amAllentown-Bethlehem

May 30

ABE10:42 amAllentown-Bethlehem

13h 11m

2 stops

SEA8:53 pmSeattle/Tacoma Intl

$410

United Airlines

May 26

SEA10:40 pmSeattle/Tacoma Intl

8h 23m

1 stop

ABE10:03 amAllentown-Bethlehem

May 30

ABE6:15 amAllentown-Bethlehem

8h 23m

1 stop

SEA11:38 amSeattle/Tacoma Intl

$448

American Airlines flights from Seattle to Allentown

Our best American Airlines deals on Seattle to Allentown flight tickets

American Airlines

Oct 17

SEA11:34 amSeattle/Tacoma Intl

7h 41m

1 stop

ABE10:15 pmAllentown-Bethlehem

Oct 24

ABE5:53 pmAllentown-Bethlehem

8h 00m

1 stop

SEA10:53 pmSeattle/Tacoma Intl

$349

American Airlines

Oct 17

SEA6:23 amSeattle/Tacoma Intl

7h 25m

1 stop

ABE4:48 pmAllentown-Bethlehem

Oct 24

ABE6:00 amAllentown-Bethlehem

11h 52m

2 stops

SEA2:52 pmSeattle/Tacoma Intl

$354

American Airlines

Jun 6

SEA6:00 amSeattle/Tacoma Intl

7h 08m

1 stop

ABE4:08 pmAllentown-Bethlehem

Jun 12

ABE5:16 pmAllentown-Bethlehem

10h 25m

1 stop

SEA12:41 amSeattle/Tacoma Intl

$358

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

SeattleAllentown

SEA - ABE

SEAABE

Seattle/Tacoma Intl

Sat 10/17

11:34 am-10:15 pm

1 stop7h 41m

Allentown-Bethlehem

Sat 10/24

5:53 pm-10:53 pm

1 stop8h 00m

$349

SeattleAllentown

SEA - ABE

SEAABE

Seattle/Tacoma Intl

Sat 10/17

6:23 am-4:48 pm

1 stop7h 25m

Allentown-Bethlehem

Sat 10/24

6:00 am-2:52 pm

2 stops11h 52m

$354

SeattleAllentown

SEA - ABE

SEAABE

Seattle/Tacoma Intl

Sat 6/6

6:00 am-4:08 pm

1 stop7h 08m

Allentown-Bethlehem

Fri 6/12

5:16 pm-12:41 am

1 stop10h 25m

$358

SeattleAllentown

SEA - ABE

SEAABE

Seattle/Tacoma Intl

Sat 6/6

10:27 am-11:54 pm

1 stop10h 27m

Allentown-Bethlehem

Sun 6/7

5:16 pm-12:41 am

1 stop10h 25m

$397

SeattleAllentown

SEA - ABE

SEAABE

Seattle/Tacoma Intl

Wed 6/10

10:27 am-11:19 pm

1 stop9h 52m

Allentown-Bethlehem

Sun 6/14

5:16 pm-12:41 am

1 stop10h 25m

$398

SeattleAllentown

SEA - ABE

SEAABE

Seattle/Tacoma Intl

Sun 10/18

10:40 pm-10:06 am

1 stop8h 26m

Allentown-Bethlehem

Fri 10/23

5:36 pm-12:14 am

1 stop9h 38m

$409

SeattleAllentown

SEA - ABE

SEAABE

Seattle/Tacoma Intl

Tue 5/26

10:40 pm-10:03 am

1 stop8h 23m

Allentown-Bethlehem

Sat 5/30

10:42 am-8:53 pm

2 stops13h 11m

$410

SeattleAllentown

SEA - ABE

SEAABE

Seattle/Tacoma Intl

Mon 8/10

11:59 pm-12:22 pm

1 stop9h 23m

Allentown-Bethlehem

Tue 8/11

6:13 pm-11:57 pm

1 stop8h 44m

$434

SeattleAllentown

SEA - ABE

SEAABE

Seattle/Tacoma Intl

Fri 6/12

6:00 am-4:38 pm

1 stop7h 38m

Allentown-Bethlehem

Mon 6/15

5:16 pm-12:41 am

1 stop10h 25m

$444

SeattleAllentown

SEA - ABE

SEAABE

Seattle/Tacoma Intl

Tue 5/26

10:40 pm-10:03 am

1 stop8h 23m

Allentown-Bethlehem

Sat 5/30

6:15 am-11:38 am

1 stop8h 23m

$448

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 typical price of a round-trip flight between Seattle and Allentown?

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 19% 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 15m
Direct flights	None

The fastest flight from Seattle to Allentown takes 7h 15m

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 15m, 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 May 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 58% of the total bookings. Other popular airlines include American Airlines with 42%.

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 9,701 reviews		Search United Airlines flights
American Airlines	PriceFrom $308	Free Cancellation	Rating 7.1 11,661 reviews		Search American 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.