SEA - ABE

$216 Find Cheap Flights from Seattle to Allentown

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Allentown departing on 6/15. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Allentown

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Allentown, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Allentown, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$388
Typical prices: $757-$462
Multiple Airlines
Sun 5/24Sun 5/31
SEA - ABE • 1 stop
Cheapest one-way
$216
Typical prices: $348-$468
Multiple Airlines
Mon 6/15
SEA - ABE • 2 stops
Top airlines
Cheapest • from $459 (round-trip)
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Seattle and Allentown. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $461 (round-trip)
Shortest trip • 7h 42m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 100% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Allentown!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Seattle to Allentown (SEA-ABE)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to Allentown that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Seattle to Allentown

Sun, May 24 - Sun, May 31
Multiple Airlines Logo
7:50 pm - 11:04 pm
SEA
-
ABE
24h 14m
1 stop
Multiple Airlines Logo
6:00 am - 2:01 pm
ABE
-
SEA
35h 01m
2 stops
$388Multiple Airlines
Thu, May 21 - Fri, May 29
Multiple Airlines Logo
7:50 pm - 11:04 pm
SEA
-
ABE
24h 14m
1 stop
Multiple Airlines Logo
2:50 pm - 10:36 am
ABE
-
SEA
22h 46m
2 stops
$395Multiple Airlines
Thu, May 21 - Fri, May 29
Multiple Airlines Logo
7:50 pm - 11:04 pm
SEA
-
ABE
24h 14m
1 stop
Multiple Airlines Logo
2:50 pm - 10:06 am
ABE
-
SEA
22h 16m
1 stop
$421Multiple Airlines
Thu, Jun 4 - Sun, Jun 7
Delta Logo
11:30 am - 10:18 pm
SEA
-
ABE
7h 48m
1 stop
Delta Logo
6:10 pm - 11:59 pm
ABE
-
SEA
8h 49m
1 stop
$454Delta
Tue, Jun 9 - Sat, Jun 20
American Airlines Logo
10:27 am - 11:19 pm
SEA
-
ABE
9h 52m
1 stop
American Airlines Logo
4:42 pm - 12:41 am
ABE
-
SEA
10h 59m
1 stop
$459American Airlines
Tue, Jun 9 - Sat, Jun 20
American Airlines Logo
6:20 am - 11:19 pm
SEA
-
ABE
13h 59m
2 stops
American Airlines Logo
4:42 pm - 12:41 am
ABE
-
SEA
10h 59m
1 stop
$464American Airlines
Thu, Sep 10 - Sun, Sep 13
American Airlines Logo
6:24 am - 4:48 pm
SEA
-
ABE
7h 24m
1 stop
American Airlines Logo
1:52 pm - 8:39 pm
ABE
-
SEA
9h 47m
1 stop
$470American Airlines
Wed, May 27 - Wed, Jun 3
United Airlines Logo
10:40 pm - 10:03 am
SEA
-
ABE
8h 23m
1 stop
United Airlines Logo
2:23 pm - 10:39 pm
ABE
-
SEA
11h 16m
1 stop
$492United Airlines
Mon, Jun 8 - Sat, Jun 20
American Airlines Logo
11:24 pm - 4:38 pm
SEA
-
ABE
14h 14m
2 stops
American Airlines Logo
4:42 pm - 12:41 am
ABE
-
SEA
10h 59m
1 stop
$507American Airlines
Tue, Jun 9 - Tue, Jun 16
American Airlines Logo
6:00 am - 4:38 pm
SEA
-
ABE
7h 38m
1 stop
American Airlines Logo
5:16 pm - 12:41 am
ABE
-
SEA
10h 25m
1 stop
$508American Airlines
Booking Insights

KAYAK's insights & trends for Seattle to Allentown flights

Get data-powered insights and trends into flights from Seattle to Allentown to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Seattle to Allentown?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Seattle to Allentown departing in May.

What is the cheapest month to fly from Seattle to Allentown?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seattle to Allentown, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Seattle to Allentown is March, where tickets cost $0 (return) on average. On the other hand, the most expensive months are February and May, where the average cost of round-trip tickets is $734 and $670 respectively.

Good to know

Low seasonApril
Cheapest flight$216
Best time to beat the crowds with an average 42% drop in price.
Most popular time to fly and prices are also 18% lower on average.
Flight from Seattle to Allentown

When to book flights from Seattle to Allentown

Are your dates flexible? Find out the best times to travel from Seattle to Allentown based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Seattle to Allentown

  • What is the cheapest flight from Seattle to Allentown?

    In the last 3 days, the lowest price for a flight from Seattle to Allentown was $216 for a one-way ticket and $388 for a round-trip.

  • Do I need a passport to fly between Seattle and Allentown?

    No

  • Which aircraft models fly most regularly from Seattle to Allentown?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Seattle to Allentown?

    oneworld, and Star Alliance are the airline alliances operating flights between Seattle and Allentown, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from Seattle to Allentown, United Airlines or American Airlines?

    The two airlines most popular with KAYAK users for flights from Seattle to Allentown are United Airlines and American Airlines. With an average price for the route of $443 and an overall rating of 7.4, United Airlines is the most popular choice. American Airlines is also a great choice for the route, with an average price of $506 and an overall rating of 7.1.

  • How does KAYAK find such low prices on flights from Seattle to Allentown?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Seattle to Allentown.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Seattle to Allentown?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Allentown from Seattle is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Seattle to Allentown?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Allentown with an airline and back to Seattle with another airline. Booking your flights between Seattle and ABE can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Seattle to Allentown?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Allentown from Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Seattle to Allentown

 
See real verified KAYAK customer reviews for airlines flying from Seattle to Allentown. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Seattle to Allentown? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9677 reviews
8.1Crew
7.7Boarding
6.6Food
7.3Comfort
7.1Entertainment
Airline reviews

Booked through Kayak Business, had a seat in middle and towards back due to booking rate, not comfortable.

4.0 OkayMichael, Apr 2026
SNA - DEN
Read more United Airlines reviews

Booked through Kayak Business, had a seat in middle and towards back due to booking rate, not comfortable.

Was great in general, try to respect time and excuses when slight changes have been made, appreciated!

A long delay. Don't travel late in the day.

Super friendly with lots of drink options an entertainment. Friendly crew.

Standard flight with a drinks and a snack- overall very quick flight. The flight attendants were very strict, bordered on rude.

Outstanding service, efficient & friendly crew, flight was safe, comfortable & on time

Delayed - weather wasn't bad at either end. Also sat on tarmac in ORD.

They told us yesterday APR21st that they were cleaning the plane and we got delayed. After that they said they didn't had any crew for the flight so they cancelled the flight till next day.

The crew was great. Very friendly and responsive. The plane was old, small and tight. We ran out of overhead space and I had to check. Middle seat was particularly tight.

The flight crew on this leg of my trip was very friendly and pleasant. Every one of them was humorous, as well as helpful and accommodating. This group was BY FAR the best crew I’ve flown with. They deserve kudos.

Left early arrived early..right amount of talking from pilots..of course had to love the biscuit and water!

As we approached Denver, we encountered quite a bit of turbulence. I know this can sometimes be the case as I frequently fly this route but not on American. My gripe: Usually a pilot or co-pilot alerts passengers to the possibility of turbulance ahead of time. This did not occur nor did he communiucate during what was a pretty rough ride.

The flight was on time and the landing was very smooth. The crew and flight attendants were all very friendly and professional.

When I booked my flight a month ago - I selected a seat. That seat was NOT the one I ended up with when I checked into my flight the day before. This is the second time this has occurred. So, I checked my next flight on Wednesday and Thursday and no seat was assigned. Poor, very poor customer service.

Cleared standby and gave up my seat. Terrible policy and boarding experience

Message about flight cancelation was received late due to being in the air. No explanation, just canceled and booked on morning flight. We had to stay in the airport overnight because there was no transportation offered to get to the hotel that AA had available. Actual inflight was fine.

Bag drop was very disorganized in Miami. All main cabin passengers were shunted to just a few lanes and they had an equal number of lanes for first class passengers but there was nobody on those lines. They did nothing to bring the main cab and passengers over to the open lines and they just had employees standing there and doing nothing

We did not have enough time to make our connecting flight. As a result, we were put onto a different airline for our second leg. The different airline was NOT comparable to British Airlines, and our arrival was significantly delayed. The actual flight on BA was amazing.

Flight boarded from Gate 159B, the farthest gate in the LAX Bradley Terminal. While the flight operated on time, the first class cabin attendant made no recognition of my being an Advantage Executive Platinum member.

American Airlines did everything they could with the high Spring Break crowd. I was frustrated to be changed from 1st class to a middle seat at the back of the plane. This has happened before, not sure booking 1st class and paying the extra actually works.

Everything you need to know for your flight from Seattle to Allentown

Information on your arrival and departure airports