$175+ Cheap flights from Seattle to Allentown (SEA - ABE)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/19. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — ABE
Jul 20 — Jul 271
Round-trip
1 adult, Economy
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Find cheap flights from Seattle to Allentown with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Best
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Cheapest flights from Seattle to AllentownExplore the most affordable flight options available from Seattle to Allentown. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 20, 2026.
Explore the most affordable flight options available from Seattle to Allentown. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 20, 2026.
This Delta deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/16:00 am
SEA
- ABE
1 stop8h 23m
Delta
Tue 9/86:08 pm
ABE
- SEA
1 stop8h 51m
Delta
Deal found 6/16![Delta logo]()
$349
This Delta deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/111:35 pm
SEA
- ABE
1 stop9h 29m
Delta
Wed 11/111:00 pm
ABE
- SEA
2 stops13h 59m
Delta
Deal found 6/15![Delta logo]()
$354
This Delta deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/16:00 am
SEA
- ABE
1 stop8h 23m
Delta
Wed 9/96:08 pm
ABE
- SEA
1 stop8h 51m
Delta
Deal found 6/16![Delta logo]()
$367
This United Airlines deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2111:00 pm
SEA
- ABE
1 stop7h 57m
United Airlines
Mon 8/245:36 pm
ABE
- SEA
1 stop8h 07m
United Airlines
Deal found 6/15![United Airlines logo]()
$381
This Delta deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/26:00 am
SEA
- ABE
1 stop8h 23m
Delta
Mon 9/76:09 pm
ABE
- SEA
1 stop8h 48m
Delta
Deal found 6/16![Delta logo]()
$393
This Kiwi.com deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/37:41 pm
SEA
- ABE
1 stop16h 57m
Multiple Airlines
Fri 9/117:00 am
ABE
- SEA
1 stop20h 27m
Multiple Airlines
Deal found 6/16![Multiple Airlines logo]()
$394
This Kiwi.com deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/18:13 pm
SEA
- ABE
2 stops38h 25m
Multiple Airlines
Fri 9/117:00 am
ABE
- SEA
1 stop20h 27m
Multiple Airlines
Deal found 6/16![Multiple Airlines logo]()
$396
Best flights from Seattle to AllentownDiscover carefully curated flight deals from Seattle to Allentown that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 20, 2026.
Discover carefully curated flight deals from Seattle to Allentown that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 20, 2026.
This Delta deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/266:00 am
SEA
- ABE
1 stop8h 23m
Delta
Wed 9/26:09 pm
ABE
- SEA
1 stop8h 48m
Delta
Deal found 6/19![Delta logo]()
$349
This United Airlines deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/215:20 pm
SEA
- ABE
2 stops13h 37m
United Airlines
Mon 8/245:36 pm
ABE
- SEA
1 stop8h 07m
United Airlines
Deal found 6/15![United Airlines logo]()
$426
This American Airlines deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/75:10 am
SEA
- ABE
1 stop8h 17m
American Airlines
Sun 8/95:12 pm
ABE
- SEA
1 stop10h 01m
American Airlines
Deal found 6/17![American Airlines logo]()
$526
This Delta deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/26:00 am
SEA
- ABE
1 stop8h 23m
Delta
Mon 9/76:09 pm
ABE
- SEA
1 stop8h 48m
Delta
Deal found 6/16![Delta logo]()
$393
This Delta deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/256:00 am
SEA
- ABE
1 stop8h 23m
Delta
Wed 9/26:09 pm
ABE
- SEA
1 stop8h 48m
Delta
Deal found 6/19![Delta logo]()
$564
This United Airlines deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/302:33 pm
SEA
- ABE
2 stops16h 25m
United Airlines
Fri 7/35:41 pm
ABE
- SEA
1 stop8h 17m
United Airlines
Deal found 6/16![United Airlines logo]()
$690
This Delta deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/219:45 am
SEA
- ABE
2 stops10h 23m
Delta
Sat 7/2512:55 pm
ABE
- SEA
1 stop9h 10m
Delta
Deal found 6/18![Delta logo]()
$737
This Delta deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/2910:58 pm
SEA
- ABE
1 stop10h 29m
Delta
Sun 7/51:12 pm
ABE
- SEA
1 stop10h 37m
Delta
Deal found 6/17![Delta logo]()
$757
Last-minute flights from Seattle to AllentownDiscover last-minute flight deals from Seattle to Allentown. Data last updated June 20, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Allentown. Data last updated June 20, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/2311:56 am
SEA
- ABE
1 stop8h 24m
Delta
Sat 6/271:12 pm
ABE
- SEA
1 stop10h 37m
Delta
Deal found 6/20![Delta logo]()
$521
This American Airlines deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/275:15 am
SEA
- ABE
1 stop8h 59m
American Airlines
Tue 6/305:16 pm
ABE
- SEA
1 stop10h 25m
American Airlines
Deal found 6/15![American Airlines logo]()
$509
This American Airlines deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/306:00 am
SEA
- ABE
1 stop7h 38m
American Airlines
Fri 7/35:12 pm
ABE
- SEA
1 stop10h 51m
American Airlines
Deal found 6/16![American Airlines logo]()
$489
This American Airlines deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/36:00 am
SEA
- ABE
1 stop7h 42m
American Airlines
Sat 7/185:11 pm
ABE
- SEA
1 stop10h 41m
American Airlines
Deal found 6/19![American Airlines logo]()
$435
This United Airlines deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/35:20 pm
SEA
- ABE
2 stops13h 38m
United Airlines
Sat 7/185:41 pm
ABE
- SEA
1 stop8h 15m
United Airlines
Deal found 6/19![United Airlines logo]()
$539
This American Airlines deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/116:00 am
SEA
- ABE
1 stop7h 41m
American Airlines
Mon 7/205:12 pm
ABE
- SEA
1 stop10h 47m
American Airlines
Deal found 6/17![American Airlines logo]()
$508
This American Airlines deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/116:16 am
SEA
- ABE
2 stops13h 52m
American Airlines
Tue 7/215:09 pm
ABE
- SEA
1 stop10h 43m
American Airlines
Deal found 6/17![American Airlines logo]()
$530
This American Airlines deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/146:00 am
SEA
- ABE
1 stop7h 39m
American Airlines
Mon 7/205:12 pm
ABE
- SEA
1 stop10h 47m
American Airlines
Deal found 6/17![American Airlines logo]()
$487
This American Airlines deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/1510:22 am
SEA
- ABE
2 stops11h 01m
American Airlines
Tue 7/215:09 pm
ABE
- SEA
1 stop10h 43m
American Airlines
Deal found 6/17![American Airlines logo]()
$513
This American Airlines deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/151:10 pm
SEA
- ABE
1 stop8h 13m
American Airlines
Sat 7/185:11 pm
ABE
- SEA
1 stop10h 41m
American Airlines
Deal found 6/17![American Airlines logo]()
$525
This American Airlines deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/231:10 pm
SEA
- ABE
1 stop8h 13m
American Airlines
Mon 7/275:12 pm
ABE
- SEA
1 stop10h 47m
American Airlines
Deal found 6/15![American Airlines logo]()
$515
One-way flights from Seattle to AllentownSearch for one-way flight options from Seattle to Allentown. Find affordable one-way fares based on user searches. Data last updated June 20, 2026.
Search for one-way flight options from Seattle to Allentown. Find affordable one-way fares based on user searches. Data last updated June 20, 2026.
This United Airlines deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1911:00 pm
SEA
- ABE
1 stop7h 39m
United Airlines
Deal found 6/19![United Airlines logo]()
$175
This United Airlines deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/1511:11 pm
SEA
- ABE
1 stop7h 47m
United Airlines
Deal found 6/19![United Airlines logo]()
$219
This United Airlines deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/267:25 pm
SEA
- ABE
2 stops11h 10m
United Airlines
Deal found 6/16![United Airlines logo]()
$228
This Kiwi.com deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/197:00 am
SEA
- ABE
3 stops35h 37m
Multiple Airlines
Deal found 6/19![Multiple Airlines logo]()
$239
This Kiwi.com deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/158:13 pm
SEA
- ABE
3 stops47h 57m
Multiple Airlines
Deal found 6/19![Multiple Airlines logo]()
$268
This Kiwi.com deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/267:00 am
SEA
- ABE
3 stops35h 37m
Multiple Airlines
Deal found 6/16![Multiple Airlines logo]()
$280
This Kiwi.com deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/238:53 pm
SEA
- ABE
3 stops47h 43m
Multiple Airlines
Deal found 6/19![Multiple Airlines logo]()
$295
This Kiwi.com deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2011:03 am
SEA
- ABE
2 stops25h 08m
Multiple Airlines
Deal found 6/15![Multiple Airlines logo]()
$303
This United Airlines deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/205:20 pm
SEA
- ABE
2 stops13h 37m
United Airlines
Deal found 6/15![United Airlines logo]()
$313
This Delta deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/46:00 am
SEA
- ABE
1 stop8h 23m
Delta
Deal found 6/16![Delta logo]()
$319
Find flight deals from Seattle to Allentown
Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Allentown (ABE). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 20, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $349 (Delta) |
One-way from | $175 (American Airlines) |
Popular in | July |
Cheapest in | January |
Average price | $512 |
Cheapflights Fare Finder
Customize your flight search to find flights from Seattle to Allentown that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 20, 2026.
Use the filters below to find and compare flights from Seattle to Allentown that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
SeattleAllentown
SEA - ABE
SEAABE
Seattle/Tacoma Intl
Wed 8/26
6:00 am-5:23 pm
1 stop8h 23m
Allentown-Bethlehem
Wed 9/2
6:09 pm-11:57 pm
1 stop8h 48m
$349
SeattleAllentown
SEA - ABE
SEAABE
Seattle/Tacoma Intl
Wed 9/2
6:00 am-5:23 pm
1 stop8h 23m
Allentown-Bethlehem
Mon 9/7
6:09 pm-11:57 pm
1 stop8h 48m
$393
SeattleAllentown
SEA - ABE
SEAABE
Seattle/Tacoma Intl
Fri 8/21
5:20 pm-9:57 am
2 stops13h 37m
Allentown-Bethlehem
Mon 8/24
5:36 pm-10:43 pm
1 stop8h 07m
$426
SeattleAllentown
SEA - ABE
SEAABE
Seattle/Tacoma Intl
Fri 8/7
5:10 am-4:27 pm
1 stop8h 17m
Allentown-Bethlehem
Sun 8/9
5:12 pm-12:13 am
1 stop10h 01m
$526
SeattleAllentown
SEA - ABE
SEAABE
Seattle/Tacoma Intl
Tue 8/25
6:00 am-5:23 pm
1 stop8h 23m
Allentown-Bethlehem
Wed 9/2
6:09 pm-11:57 pm
1 stop8h 48m
$564
SeattleAllentown
SEA - ABE
SEAABE
Seattle/Tacoma Intl
Tue 6/30
2:33 pm-9:58 am
2 stops16h 25m
Allentown-Bethlehem
Fri 7/3
5:41 pm-10:58 pm
1 stop8h 17m
$690
SeattleAllentown
SEA - ABE
SEAABE
Seattle/Tacoma Intl
Tue 7/21
9:45 am-11:08 pm
2 stops10h 23m
Allentown-Bethlehem
Sat 7/25
12:55 pm-7:05 pm
1 stop9h 10m
$737
SeattleAllentown
SEA - ABE
SEAABE
Seattle/Tacoma Intl
Mon 6/29
10:58 pm-12:27 pm
1 stop10h 29m
Allentown-Bethlehem
Sun 7/5
1:12 pm-8:49 pm
1 stop10h 37m
$757
Cheapest one-way
Quickest one-way
SeattleAllentown
SEA - ABE
SEAABE
Seattle/Tacoma Intl
Sat 9/26
11:13 pm-9:35 am
1 stop7h 22m
$175
SeattleAllentown
SEA - ABE
SEAABE
Seattle/Tacoma Intl
Sat 9/19
6:18 am-4:40 pm
1 stop7h 22m
$175
Showing 1-10 of 19 resultsSorted by cheapest first
Compare providers for flights from Seattle to Allentown
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Allentown in June.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Seattle-Allentown flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Allentown flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Allentown flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Seattle-Allentown flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Allentown flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Seattle to Allentown
Have a flexible travel schedule? Discover the best time to fly to Allentown from Seattle with our price prediction graph.
SEA-ABE
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Reviews of airlines servicing Allentown
Get insights into the airlines that provide service to Allentown. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Allentown. Reviews last updated June 20, 2026.
Read reviews from past customers who have flown United Airlines and American Airlines from Seattle to Allentown. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
7.4
Crew
8.1
Entertainment
7.1
Boarding
7.7
Comfort
7.3
Food
6.6
Reviews
1 / 20
4.0
OkayDynasty,May 2026
LAX - EWR
Overall
7.4
Crew
8.1
Entertainment
7.1
Boarding
7.7
Comfort
7.3
Food
6.6
Reviews
1 / 20
4.0
OkayDynasty,May 2026
LAX - EWR
Overall
7.4
Crew
8.1
Entertainment
7.1
Boarding
7.7
Comfort
7.3
Food
6.6
Reviews
1 / 20
4.0
OkayDynasty,May 2026
LAX - EWR
Related info for your journey
Find useful and relevant information for your journey from Seattle to Allentown. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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Other flights to Allentown
Explore flights to Allentown departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on June 20, 2026.
Alternative routes for Seattle to Allentown
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Complete your trip
Complete your trip to Allentown by adding a car rental and/or hotel reservation to your travel itinerary.
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Seattle and Allentown flights
Browse other Seattle and Allentown flight options. Last updated on June 20, 2026.
Other flights from Seattle
Browse through other flights departing from Seattle. Flights are based on user searches made on Cheapflights and were last updated on June 20, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 2 airlines flying from Seattle to Allentown
Discover the top 2 airlines that operate flights from Seattle to Allentown. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 20, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$289 | Average$478 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$292 | Average$443 | FlexibilityNo cancel fee | On-time69% |