$137 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.

Fri, Sep 5 - Sun, Sep 21
SEA
Seattle - Tacoma Intl.
PHL
Philadelphia Intl.
$297 Roundtrip, found 11 hours ago
$297
Roundtrip
found 11 hours ago
Select American Airlines flight, departing Fri, Sep 5 from Seattle - Tacoma Intl. to Philadelphia Intl., returning Sun, Sep 21, priced at $297 found 11 hours ago
Fri, Sep 5 - Mon, Sep 8
PAE
Seattle Paine Field Intl. Airport
PHL
Philadelphia Intl.
$339 Roundtrip, found 3 days ago
$339
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Fri, Sep 5 from Seattle Paine Field Intl. Airport to Philadelphia Intl., returning Mon, Sep 8, priced at $339 found 3 days ago

Airfares from $137 One Way, $188 Round Trip from Seattle to Allentown

Prices starting at $188 for return flights and $137 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.

Sun, Oct 26 - Thu, Oct 30
SEA
Seattle
PHL
Philadelphia
$188 Roundtrip, found 1 hour ago
$188
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Sun, Oct 26 from Seattle to Philadelphia, returning Thu, Oct 30, priced at $188 found 1 hour ago
Fri, Oct 24 - Mon, Oct 27
PAE
Seattle
PHL
Philadelphia
$191 Roundtrip, found 19 hours ago
$191
Roundtrip
found 19 hours ago
Select Frontier Airlines flight, departing Fri, Oct 24 from Seattle to Philadelphia, returning Mon, Oct 27, priced at $191 found 19 hours ago
Tue, Nov 11 - Wed, Nov 12
SEA
Seattle
PHL
Philadelphia
$271 Roundtrip, found 3 days ago
$271
Roundtrip
found 3 days ago
Select Delta flight, departing Tue, Nov 11 from Seattle to Philadelphia, returning Wed, Nov 12, priced at $271 found 3 days ago
Fri, Dec 5 - Sat, Dec 6
SEA
Seattle
PHL
Philadelphia
$271 Roundtrip, found 2 days ago
$271
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Fri, Dec 5 from Seattle to Philadelphia, returning Sat, Dec 6, priced at $271 found 2 days ago
Tue, Nov 11 - Wed, Nov 12
SEA
Seattle
PHL
Philadelphia
$277 Roundtrip, found 3 days ago
$277
Roundtrip
found 3 days ago
Select United flight, departing Tue, Nov 11 from Seattle to Philadelphia, returning Wed, Nov 12, priced at $277 found 3 days ago

Allentown economy flight packages

Price found within the past 48 hours. Click for updated prices.
Valley Forge Casino Resort
4.0-star property

Valley Forge Casino Resort

8.4/10 Very Good! (1,008 reviews)

Oct 9 - Oct 11

2 night stay

Seattle (SEA) to Philadelphia (PHL)

Alaska Airlines • Roundtrip • Coach
Price was $537, price is now $434 per person
$434
per person
found 14 hours ago
The staff could of been a little more pleasant during checkin like pointing out elevators, hotel amenities and dining options. Other than that, no concerns with room or parking.

Reviewed on Aug 20, 2024

Surrey Beach House
2.0-star property

Surrey Beach House

9.8/10 Exceptional! (39 reviews)

Oct 9 - Oct 12

3 night stay

Seattle (SEA) to Philadelphia (PHL)

Alaska Airlines • Roundtrip • Coach
Price was $715, price is now $598 per person
$598
per person
just found
Very unique stay. An updated, clean property with fantastic access to the beach and boardwalk. No staff on site, but none were needed! Individual access via keypad for lobby and room access. New furnishings and decor make it a great place. It’s quiet with only 15 rooms. Plenty of Starbucks coffee for the in-room Keurig was a bonus! However, lack of beach towels, access to drinking water (vending machine was out) and lack of parking were negatives. Once you find a spot you hate to leave it for fear we won’t get one later. There aren’t any dining options within walking distance so we Ubered everywhere. Despite this, we would stay again.

Reviewed on Aug 25, 2025

Canopy by Hilton Philadelphia Center City
4.0-star property

Canopy by Hilton Philadelphia Center City

9.2/10 Wonderful! (1,798 reviews)

Oct 9 - Oct 11

2 night stay

Seattle (SEA) to Philadelphia (PHL)

Alaska Airlines • Roundtrip • Coach
Price was $637, price is now $550 per person
$550
per person
found 14 hours ago
Tiffany at the night desk was awesome. This property and room was so cute I’d stay here again. Centrally located and an easy uber ride if not

Reviewed on Aug 9, 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
2371 mi
Direct Flight Airlines
American Airlines, Qatar Airways, Alaska Airlines, Hawaiian Airlines, Air Tahiti Nui, British Airways
Earliest Flight Arrival
11:05PM UTC
Latest Flight Arrival
2:09PM UTC

Seattle to Allentown

Score low fares on flights from Seattle to Allentown with Orbitz. We make it easier than ever to find cheap Seattle to Allentown flights with our cutting-edge mobile tools and mobile website.

Book Discount Flights From Seattle to Allentown in Minutes

If you are looking for low cost Seattle to Allentown flights, just skip all of the other so-called bargain travel sites, because Orbitz offers guaranteed low fares. That means you don't have to constantly scan multiple sites and hover like a vulture at your computer, hoping to score better deals through last-minute sales.

Find Bargain Seattle to Allentown Flights With Our Convenient Tools

You benefit from more than just cheap flights from Seattle to Allentown. Orbitz is a convenient one-stop trip planner. Research weather, attractions, and transportation options for Allentown to help you plan your trip and decide what to pack and where to go.

Booking domestic or international air fare and accommodations with Orbitz is a snap. Use your iPad, iPhone or Android device to find discount flights from Seattle to Allentown even while on the move, and sign up for instant email and text alerts to stay up-to-date on any delays affecting your flight. Or access m.orbitz.com via your mobile device’s Web browser.

Earn Miles through Orbitz for Your Frequent Flyer Program

You don't have to give up frequent flyer points to take advantage of our low fares. Add your frequent flyer number when you book your Seattle to Allentown flights to receive credit for your trip.

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.

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.