$123 Cheap flight deals from Seattle (SEA) to Allentown (ABE)

Earn rewards on top of your airline miles with Orbitz Rewards

Many airlines offer flexible change policies

Sign up to receive text alerts about your trip

This Weekend's Flight Deals from Seattle to Allentown

This weekend's flight prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sun, Nov 30 - Wed, Dec 10
SEA
Seattle - Tacoma Intl.
ABE
Lehigh Valley Intl.
$605 Roundtrip, found 6 days ago
$605
Roundtrip
found 6 days ago
Select American Airlines flight, departing Sun, Nov 30 from Seattle - Tacoma Intl. to Lehigh Valley Intl., returning Wed, Dec 10, priced at $605 found 6 days ago
Sun, Nov 30 - Sun, Dec 7
SEA
Seattle - Tacoma Intl.
PHL
Philadelphia Intl.
$640 Roundtrip, found 5 hours ago
$640
Roundtrip
found 5 hours ago
Select Frontier Airlines flight, departing Sun, Nov 30 from Seattle - Tacoma Intl. to Philadelphia Intl., returning Sun, Dec 7, priced at $640 found 5 hours ago
Sun, Nov 30 - Mon, Dec 1
SEA
Seattle - Tacoma Intl.
TTN
Mercer
$826 Roundtrip, found 6 days ago
$826
Roundtrip
found 6 days ago
Select American Airlines flight, departing Sun, Nov 30 from Seattle - Tacoma Intl. to Mercer, returning Mon, Dec 1, priced at $826 found 6 days ago
Fri, Nov 28 - Mon, Dec 1
PAE
Seattle Paine Field Intl. Airport
PHL
Philadelphia Intl.
$841 Roundtrip, found 14 hours ago
$841
Roundtrip
found 14 hours ago
Select Frontier Airlines flight, departing Fri, Nov 28 from Seattle Paine Field Intl. Airport to Philadelphia Intl., returning Mon, Dec 1, priced at $841 found 14 hours ago

Airfares from $123 One Way, $235 Round Trip from Seattle to Allentown

Prices starting at $235 for return flights and $123 for one-way flights to Allentown were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Feb 21 - Mon, Mar 2
SEA
Seattle
PHL
Philadelphia
$235 Roundtrip, found 16 hours ago
$235
Roundtrip
found 16 hours ago
Select Alaska Airlines flight, departing Sat, Feb 21 from Seattle to Philadelphia, returning Mon, Mar 2, priced at $235 found 16 hours ago
Sun, Feb 22 - Sat, Feb 28
SEA
Seattle
PHL
Philadelphia
$237 Roundtrip, just found
$237
Roundtrip
just found
Select American Airlines flight, departing Sun, Feb 22 from Seattle to Philadelphia, returning Sat, Feb 28, priced at $237 just found
Wed, Jan 21 - Sat, Jan 24
SEA
Seattle
PHL
Philadelphia
$244 Roundtrip, found 3 hours ago
$244
Roundtrip
found 3 hours ago
Select Alaska Airlines flight, departing Wed, Jan 21 from Seattle to Philadelphia, returning Sat, Jan 24, priced at $244 found 3 hours ago
Sat, Feb 21 - Fri, Feb 27
SEA
Seattle
TTN
Trenton
$252 Roundtrip, found 5 days ago
$252
Roundtrip
found 5 days ago
Select American Airlines flight, departing Sat, Feb 21 from Seattle to Trenton, returning Fri, Feb 27, priced at $252 found 5 days ago
Sun, Feb 22 - Sat, Feb 28
SEA
Seattle
PHL
Philadelphia
$257 Roundtrip, just found
$257
Roundtrip
just found
Select Delta flight, departing Sun, Feb 22 from Seattle to Philadelphia, returning Sat, Feb 28, priced at $257 just found

Allentown economy flight packages

Price found within the past 48 hours. Click for updated prices.
Renaissance Philadelphia Downtown Hotel
4.0-star property

Renaissance Philadelphia Downtown Hotel

8.4/10 Very Good! (1,001 reviews)

Jan 12 - Jan 14

2 night stay

Seattle (SEA) to Philadelphia (PHL)

Southwest Airlines • Non-stop • Coach

Philadelphia (PHL) to Seattle (SEA)

Delta • Non-stop • Coach
Price was $536, price is now $437 per person
$437
per person
found 1 day ago
Very convenient area, close to major attractions, dining, shopping. Very walkable to most areas. Staff were incredible. Hotel could use a good scrub. My main complaint was the fact that I booked this specific hotel for the indoor pool for our 9yr old. The pool was disgusting. Strange skim on the surface of the water and it was cold. So pool was a no go. Would I go back to this hotel, yes, if it was only me and my husband. Not a great hotel if you’re traveling with kids(we needed a rollaway bed and they never had one available) we made it work with the chase lounge and a bunch of extra bedding, but definitely wasn’t the plan. Plan to eat somewhere else than the restaurant in the hotel. No kids menu. The only thing we could find for her to eat was the lobster Mac n cheese-minus the lobster though we were still charged full price as if it had the lobster. I told my kid, I hope you enjoy your $25 Mac n cheese. Just some things to consider. It’s just not a kid friendly hotel, but you’d most likely be happy there with adults only.

Reviewed on Apr 28, 2025

Canopy by Hilton Philadelphia Center City
4.0-star property

Canopy by Hilton Philadelphia Center City

9.2/10 Wonderful! (1,864 reviews)

Jan 2 - Jan 5

3 night stay

Seattle (SEA) to Philadelphia (PHL)

Delta • Non-stop • Coach

Philadelphia (PHL) to Seattle (SEA)

American Airlines • Non-stop • Coach
Price was $763, price is now $614 per person
$614
per person
just found
Great location and awesome hotel.

Reviewed on Sep 29, 2025

The Rittenhouse Philadelphia
5.0-star property

The Rittenhouse Philadelphia

9.6/10 Exceptional! (921 reviews)

Jan 12 - Jan 14

2 night stay

Seattle (SEA) to Philadelphia (PHL)

Southwest Airlines • Non-stop • Coach

Philadelphia (PHL) to Seattle (SEA)

Delta • Non-stop • Coach
Price was $754, price is now $600 per person
$600
per person
found 1 day ago
Wonderful stay! Very quiet and staff is exceptional.

Reviewed on Sep 3, 2025

Don't see what you're looking for?
See all available trips from Seattle to Allentown
View all trips

More About Flying To Allentown from Seattle

Route Information for Flights from Seattle to Allentown

Origin Airport IATA Code
SEA
Destination Airport IATA Code
ABE
Distance
Direct Flight Airlines
Earliest Flight Arrival
Latest Flight Arrival

Seattle to Allentown

Orbitz can provide you with the greatest deals on a wide range of Seattle to Allentown flights. Orbitz offers guaranteed low prices and offers you the convenience of cutting-edge mobile tools thus providing you with your best travel experience ever.

Mobile Apps for Seattle to Allentown Flights

You can use our mobile app to find the cheapest prices for flights from Seattle to Allentown. With this cutting-edge technology, you can check up on your flight’s status, gate number and luggage claim handling, and reserve exclusive deals on top hotels at short notice.

Loyalty Rewarded

For travelers who regularly book Seattle to Allentown flights, our frequent flyer program offers even more low-cost air tickets. You will be able to store your miles in your personal Orbitz account and add them with ease to your future reservations.

Trouble-Free Traveling With Flight Alerts

Orbitz will not only provide you with the assistance that you require when purchasing flights from Seattle to Allentown but will ensure that you remain fully updated on any flight delays, changes or disruptions by providing free alerts. Your Seattle to Allentown flights alerts can be sent directly to your phone or email. You can also opt for these alerts to be sent to your family and friends so that everyone is kept informed of your travel plans.

 Budget Flying Made Simple

Finding cheap flights from Seattle to Allentown is easy with Orbitz. You can pick and choose airlines for your international flights to create inexpensive yet convenient travel arrangements.

Frequently asked questions

Are there non-stop flights from Seattle to Allentown?
Two airlines fly nonstop from SEA to Philadelphia Intl. Airport (PHL) — American Airlines and Alaska Airlines. They'll take you where you need to go quickly and comfortably.
What is the shortest flight from Seattle to Allentown?
The quickest flight time from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Philadelphia Intl. Airport (PHL) is around 5 hours and 41 minutes. Order your favorite tipple from the drink cart, start your travel journal or finish that podcast — you'll have enough time on this medium-haul journey.
What airlines fly from Seattle to Allentown most frequently?
American Airlines (AA) operates 52 flights every month between Seattle - Tacoma Intl. Airport (SEA) to Philadelphia, PA (PHL-Philadelphia Intl.). Your next exciting adventure is only a few clicks away. Also consider the great fares available with Alaska Airlines (AS). Offering 30 flights every month between Seattle and Allentown, they'll make sure your journey is just as enjoyable as the destination.
What is the cheapest day of the week to fly?
Consider flying out early in the week to save on your airfare. Orbitz data from 2021 shows that Monday is the cheapest day to depart, followed by Tuesday. Saturday showed the highest average ticket prices likely because many travelers prefer to start their vacation on a weekend.
What is the cheapest month to fly?
We won't keep you guessing, according to Orbitz data from 2021, the cheapest month to fly is February. Perfect for those who need a weekend getaway, or just a break from it all in the shortest month of the year. Be aware that the most expensive time to fly is during the height of summer in July, and in the holiday month of December.*According to flight demand on Orbitz.com from January to December 2021. Savings are subject to change based on departure location, date and destination.

More Destinations

Fare, taxes & fees: Fares include all taxes and fees, except baggage fees. Rates shown reflect fares found by other Orbitz users over the past 7 days. Due to rapidly changing airline prices & seat availability, these fares may no longer be available.

Refunds/changes/cancellations: Itinerary changes, if permitted for the fare, will have a $30 service fee charged by Orbitz. Additional airline charges may apply.

Other conditions: Schedules, fares and rules are subject to change without notice. Seats are limited and may not be available on all flights/dates or in all markets. Lower fares may be available. Fares will not be honored retroactively or in exchange for any wholly/partially unused ticket. Tickets are non-transferable and non-refundable. Fare rules are provided for the selected itinerary before booking.