$249+ Cheap flights from Seattle to Allentown (SEA - ABE)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/19. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — ABE
Oct 22 — Oct 291
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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Seattle to Allentown
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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 September 22, 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 September 22, 2026.
This Delta deal was found by Cheapflights users on 9/21. 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 11/411:45 am -
1 stop7h 34m
Sat 12/56:39 am -
1 stop10h 59m
Deal found 9/21![Delta logo]()
$399
This United Airlines deal was found by Cheapflights users on 9/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/207:25 pm -
2 stops11h 10m
Tue 10/275:36 pm -
1 stop9h 23m
Deal found 9/17![United Airlines logo]()
$404
This American Airlines deal was found by Cheapflights users on 9/21. 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 10/211:25 pm -
1 stop8h 03m
Wed 10/286:10 am -
1 stop9h 17m
Deal found 9/21![American Airlines logo]()
$419
This American Airlines deal was found by Cheapflights users on 9/19. 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.
Sun 11/110:43 am -
1 stop9h 16m
Wed 11/116:15 pm -
1 stop9h 20m
Deal found 9/19![American Airlines logo]()
$428
This Delta deal was found by Cheapflights users on 9/21. 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 11/16:00 am -
1 stop8h 16m
Wed 12/25:58 pm -
1 stop8h 57m
Deal found 9/21![Delta logo]()
$429
This American Airlines deal was found by Cheapflights users on 9/17. 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.
Thu 11/1210:43 am -
1 stop9h 16m
Mon 11/166:15 pm -
1 stop9h 20m
Deal found 9/17![American Airlines logo]()
$437
This Delta deal was found by Cheapflights users on 9/17. 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.
Thu 10/16:00 am -
1 stop8h 19m
Wed 10/146:03 pm -
1 stop8h 49m
Deal found 9/17![Delta logo]()
$439
This Delta deal was found by Cheapflights users on 9/21. 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.
Sat 9/266:00 am -
1 stop8h 31m
Wed 9/306:08 pm -
1 stop8h 50m
Deal found 9/21![Delta logo]()
$455
This United Airlines deal was found by Cheapflights users on 9/21. 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 10/67:25 pm -
2 stops11h 10m
Sat 10/105:43 pm -
1 stop8h 13m
Deal found 9/21![United Airlines logo]()
$460
This Delta deal was found by Cheapflights users on 9/18. 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.
Sat 9/2611:59 pm -
1 stop9h 16m
Fri 10/26:04 pm -
1 stop8h 54m
Deal found 9/18![Delta logo]()
$467
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 September 22, 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 September 22, 2026.
This Delta deal was found by Cheapflights users on 9/17. 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.
Sun 11/16:00 am -
1 stop8h 16m
Wed 11/116:00 pm -
1 stop8h 57m
Deal found 9/17![Delta logo]()
$399
This American Airlines deal was found by Cheapflights users on 9/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/110:43 am -
1 stop9h 16m
Wed 11/117:36 am -
2 stops12h 18m
Deal found 9/20![American Airlines logo]()
$482
This United Airlines deal was found by Cheapflights users on 9/21. 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 10/67:25 pm -
2 stops11h 10m
Sat 10/106:20 am -
2 stops10h 57m
Deal found 9/21![United Airlines logo]()
$567
This Delta deal was found by Cheapflights users on 9/17. 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.
Thu 10/16:00 am -
1 stop8h 19m
Mon 10/56:04 pm -
1 stop8h 55m
Deal found 9/17![Delta logo]()
$479
This Delta deal was found by Cheapflights users on 9/17. 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.
Fri 9/2511:35 am -
1 stop7h 41m
Sat 9/266:11 pm -
1 stop8h 47m
Deal found 9/17![Delta logo]()
$517
This United Airlines deal was found by Cheapflights users on 9/21. 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 -
2 stops11h 10m
Wed 9/3010:37 am -
2 stops13h 24m
Deal found 9/21![United Airlines logo]()
$595
This Delta deal was found by Cheapflights users on 9/17. 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.
Wed 9/3011:35 am -
1 stop7h 41m
Tue 10/66:03 pm -
1 stop8h 49m
Deal found 9/17![Delta logo]()
$537
This United Airlines deal was found by Cheapflights users on 9/21. 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 9/3011:13 pm -
1 stop7h 22m
Fri 10/95:43 pm -
1 stop8h 13m
Deal found 9/21![United Airlines logo]()
$647
This Delta deal was found by Cheapflights users on 9/17. 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.
Fri 10/211:59 pm -
1 stop9h 16m
Mon 10/56:04 pm -
1 stop8h 55m
Deal found 9/17![Delta logo]()
$579
This Delta deal was found by Cheapflights users on 9/18. 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.
Sun 9/276:00 am -
1 stop8h 19m
Wed 9/306:08 pm -
1 stop8h 50m
Deal found 9/18![Delta logo]()
$637
This Delta deal was found by Cheapflights users on 9/18. 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.
Sun 9/276:00 am -
1 stop8h 19m
Mon 9/286:04 pm -
1 stop8h 54m
Deal found 9/18![Delta logo]()
$675
Last-minute flights from Seattle to AllentownDiscover last-minute flight deals from Seattle to Allentown. Data last updated September 22, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Allentown. Data last updated September 22, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 9/21. 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.
Sat 9/266:00 am -
1 stop8h 31m
Wed 9/306:08 pm -
1 stop8h 50m
Deal found 9/21![Delta logo]()
$455
This Delta deal was found by Cheapflights users on 9/18. 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.
Sat 9/2611:59 pm -
1 stop9h 16m
Fri 10/26:04 pm -
1 stop8h 54m
Deal found 9/18![Delta logo]()
$467
This American Airlines deal was found by Cheapflights users on 9/18. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/266:18 am -
1 stop7h 22m
Wed 9/305:45 am -
1 stop8h 40m
Deal found 9/18![American Airlines logo]()
$475
This Delta deal was found by Cheapflights users on 9/17. 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.
Thu 10/16:00 am -
1 stop8h 19m
Wed 10/146:03 pm -
1 stop8h 49m
Deal found 9/17![Delta logo]()
$439
This Delta deal was found by Cheapflights users on 9/17. 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.
Thu 10/16:00 am -
1 stop8h 19m
Mon 10/56:04 pm -
1 stop8h 55m
Deal found 9/17![Delta logo]()
$479
This United Airlines deal was found by Cheapflights users on 9/21. 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 10/67:25 pm -
2 stops11h 10m
Sat 10/105:43 pm -
1 stop8h 13m
Deal found 9/21![United Airlines logo]()
$460
This Delta deal was found by Cheapflights users on 9/17. 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.
Tue 10/2010:35 pm -
1 stop10h 30m
Tue 10/276:03 pm -
1 stop8h 49m
Deal found 9/17![Delta logo]()
$399
This United Airlines deal was found by Cheapflights users on 9/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/207:25 pm -
2 stops11h 10m
Tue 10/275:36 pm -
1 stop9h 23m
Deal found 9/17![United Airlines logo]()
$404
This American Airlines deal was found by Cheapflights users on 9/21. 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 10/211:25 pm -
1 stop8h 03m
Wed 10/286:10 am -
1 stop9h 17m
Deal found 9/21![American Airlines logo]()
$419
This American Airlines deal was found by Cheapflights users on 9/18. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/286:12 am -
1 stop9h 05m
Mon 11/26:15 pm -
1 stop9h 20m
Deal found 9/18![American Airlines logo]()
$428
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 September 22, 2026.
Search for one-way flight options from Seattle to Allentown. Find affordable one-way fares based on user searches. Data last updated September 22, 2026.
This American Airlines deal was found by Cheapflights users on 9/21. 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 11/1911:16 am -
1 stop10h 01m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![American Airlines logo]()
$249
This United Airlines deal was found by Cheapflights users on 9/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/25:35 pm -
2 stops12h 53m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![United Airlines logo]()
$285
This Trip.com deal was found by Cheapflights users on 9/21. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/14:27 pm -
2 stops27h 01m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Multiple Airlines logo]()
$304
This American Airlines deal was found by Cheapflights users on 9/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/15:40 am -
1 stop8h 02m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![American Airlines logo]()
$305
This Delta deal was found by Cheapflights users on 9/17. 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.
Sun 9/276:00 am -
1 stop8h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![Delta logo]()
$348
This American Airlines deal was found by Cheapflights users on 9/21. 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 10/110:59 am -
1 stop8h 18m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![American Airlines logo]()
$349
This American Airlines deal was found by Cheapflights users on 9/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2110:29 pm -
1 stop10h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![American Airlines logo]()
$354
This United Airlines deal was found by Cheapflights users on 9/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/15:35 pm -
2 stops13h 16m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![United Airlines logo]()
$359
This Delta deal was found by Cheapflights users on 9/18. 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.
Fri 10/2311:45 am -
1 stop7h 34m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/18![Delta logo]()
$390
This American Airlines deal was found by Cheapflights users on 9/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/227:06 am -
2 stops13h 46m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![American Airlines logo]()
$402
This United Airlines deal was found by Cheapflights users on 9/21. 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 10/111:13 pm -
1 stop7h 22m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![United Airlines logo]()
$403
This Delta deal was found by Cheapflights users on 9/20. 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.
Sun 12/2011:06 pm -
1 stop10h 14m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![Delta logo]()
$430
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 September 22, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $399 (Delta) |
One-way from | $249 (American Airlines) |
Popular in | October |
Cheapest in | December |
Average price | $822 |
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 7,457,451 searches. Data last updated September 22, 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
SeattleAllentown
SEA Seattle/Tacoma Intl - ABE Allentown-Bethlehem
SEAABE
Seattle/Tacoma Intl
Wed 12/2
5:35 pm-9:28 am
2 stops12h 53m
Allentown-Bethlehem
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$285
SeattleAllentown
SEA Seattle/Tacoma Intl - ABE Allentown-Bethlehem
SEAABE
Seattle/Tacoma Intl
Thu 10/1
4:27 pm-10:28 pm
2 stops27h 01m
Allentown-Bethlehem
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$304
SeattleAllentown
SEA Seattle/Tacoma Intl - ABE Allentown-Bethlehem
SEAABE
Seattle/Tacoma Intl
Tue 12/1
5:40 am-4:42 pm
1 stop8h 02m
Allentown-Bethlehem
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$305
SeattleAllentown
SEA Seattle/Tacoma Intl - ABE Allentown-Bethlehem
SEAABE
Seattle/Tacoma Intl
Sun 9/27
6:00 am-5:19 pm
1 stop8h 19m
Allentown-Bethlehem
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$348
SeattleAllentown
SEA Seattle/Tacoma Intl - ABE Allentown-Bethlehem
SEAABE
Seattle/Tacoma Intl
Thu 10/1
10:59 am-10:17 pm
1 stop8h 18m
Allentown-Bethlehem
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$349
SeattleAllentown
SEA Seattle/Tacoma Intl - ABE Allentown-Bethlehem
SEAABE
Seattle/Tacoma Intl
Tue 12/1
5:35 pm-9:51 am
2 stops13h 16m
Allentown-Bethlehem
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$359
Quickest round-trip
SeattleAllentown
SEA Seattle/Tacoma Intl - ABE Allentown-Bethlehem
SEAABE
Seattle/Tacoma Intl
Fri 10/23
11:45 am-10:19 pm
1 stop7h 34m
Allentown-Bethlehem
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$390
SeattleAllentown
SEA Seattle/Tacoma Intl - ABE Allentown-Bethlehem
SEAABE
Seattle/Tacoma Intl
Sun 11/1
6:00 am-5:16 pm
1 stop8h 16m
Allentown-Bethlehem
Wed 11/11
6:00 pm-11:57 pm
1 stop8h 57m
$399
SeattleAllentown
SEA Seattle/Tacoma Intl - ABE Allentown-Bethlehem
SEAABE
Seattle/Tacoma Intl
Tue 12/22
7:06 am-11:52 pm
2 stops13h 46m
Allentown-Bethlehem
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$402
SeattleAllentown
SEA Seattle/Tacoma Intl - ABE Allentown-Bethlehem
SEAABE
Seattle/Tacoma Intl
Sun 12/20
11:06 pm-12:20 pm
1 stop10h 14m
Allentown-Bethlehem
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$430
Showing 1-10 of 22 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 September.
| 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.
Cheapflights Insights
Everything you need to know about your flight from Seattle to Allentown
What is the cheapest month to book a flight from Seattle to Allentown?
Currently, December is the cheapest month in which you can book a flight from Seattle to Allentown (average of $394). Flying from Seattle to Allentown in October is currently the most expensive (average of $967). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How much does it cost to fly round-trip from Seattle to Allentown?
Airfare is below average for this route at the moment.
Seattle to Allentown flights typically cost between $480 and $946 in November.The cheapest round-trip price found within the last 5 days was $399 on Delta (Nov 4-Dec 5).
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 September 22, 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.
Boarding
7.7
Overall
7.4
Crew
8.1
Food
6.7
Comfort
7.3
Entertainment
7.1
Reviews
1 / 20
8.0
ExcellentAsha,Sep 2026
LGA - IAH
Boarding
7.7
Overall
7.4
Crew
8.1
Food
6.7
Comfort
7.3
Entertainment
7.1
Reviews
1 / 20
8.0
ExcellentAsha,Sep 2026
LGA - IAH
Boarding
7.7
Overall
7.4
Crew
8.1
Food
6.7
Comfort
7.3
Entertainment
7.1
Reviews
1 / 20
8.0
ExcellentAsha,Sep 2026
LGA - IAH
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.
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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 7,457,451 searches. Data last updated September 22, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$292 | Average$443 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$352 | Average$544 | FlexibilityNo cancel fee | On-time71% |