$141+ Cheap flights from Allentown to Seattle (ABE - SEA)
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 9/14. Fares are subject to change and may not be available on all flights or dates of travel.
ABE — SEA
Sep 6 — Sep 131
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Allentown to Seattle 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 Allentown to Seattle
Cheapest
Best
Last-minute
One-way
Cheapest flights from Allentown to SeattleExplore the most affordable flight options available from Allentown to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 7, 2026.
Explore the most affordable flight options available from Allentown to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 7, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/4. 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.
Mon 8/247:00 am -
1 stop29h 19m
Sun 8/307:06 pm -
1 stop17h 35m
Deal found 8/4![Multiple Airlines logo]()
$307
This Kiwi.com deal was found by Cheapflights users on 8/4. 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.
Mon 8/247:00 am -
1 stop29h 19m
Sat 8/297:06 pm -
2 stops19h 27m
Deal found 8/4![Multiple Airlines logo]()
$351
This Delta deal was found by Cheapflights users on 8/6. 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 9/86:08 pm -
1 stop8h 50m
Wed 9/1611:35 am -
1 stop7h 41m
Deal found 8/6![Delta logo]()
$359
This United Airlines deal was found by Cheapflights users on 8/2. 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 9/110:32 am -
1 stop8h 35m
Sat 9/125:20 pm -
2 stops13h 19m
Deal found 8/2![United Airlines logo]()
$364
This American Airlines deal was found by Cheapflights users on 8/6. 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 9/295:45 am -
1 stop8h 40m
Sat 10/36:18 am -
1 stop7h 22m
Deal found 8/6![American Airlines logo]()
$369
This United Airlines deal was found by Cheapflights users on 8/5. 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 10/25:46 pm -
1 stop8h 10m
Mon 10/511:13 pm -
1 stop7h 22m
Deal found 8/5![United Airlines logo]()
$379
This Delta deal was found by Cheapflights users on 8/6. 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 9/226:08 pm -
1 stop8h 50m
Fri 9/2510:59 pm -
1 stop10h 16m
Deal found 8/6![Delta logo]()
$389
This United Airlines deal was found by Cheapflights users on 8/6. 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 9/510:32 am -
2 stops13h 11m
Sun 9/1311:00 pm -
1 stop7h 39m
Deal found 8/6![United Airlines logo]()
$394
This Delta deal was found by Cheapflights users on 8/6. 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 9/51:10 pm -
1 stop8h 55m
Wed 9/1611:35 am -
1 stop7h 41m
Deal found 8/6![Delta logo]()
$399
This Delta deal was found by Cheapflights users on 8/5. 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 9/26:09 pm -
1 stop8h 48m
Sat 9/1210:59 pm -
1 stop10h 16m
Deal found 8/5![Delta logo]()
$403
Best flights from Allentown to SeattleDiscover carefully curated flight deals from Allentown to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 7, 2026.
Discover carefully curated flight deals from Allentown to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 7, 2026.
This United Airlines deal was found by Cheapflights users on 8/2. 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 9/110:32 am -
1 stop8h 35m
Sat 9/125:20 pm -
2 stops13h 19m
Deal found 8/2![United Airlines logo]()
$364
This Delta deal was found by Cheapflights users on 8/6. 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 9/226:08 pm -
1 stop8h 50m
Fri 9/2510:59 pm -
1 stop10h 16m
Deal found 8/6![Delta logo]()
$389
This United Airlines deal was found by Cheapflights users on 8/7. 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 10/25:43 pm -
1 stop8h 13m
Mon 10/511:13 pm -
1 stop7h 22m
Deal found 8/7![United Airlines logo]()
$379
This United Airlines deal was found by Cheapflights users on 8/2. 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 9/246:20 am -
1 stop8h 07m
Sun 9/2711:13 pm -
1 stop7h 22m
Deal found 8/2![United Airlines logo]()
$379
This Delta deal was found by Cheapflights users on 8/6. 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 9/26:09 pm -
1 stop8h 48m
Wed 9/1611:35 am -
1 stop7h 41m
Deal found 8/6![Delta logo]()
$429
This United Airlines deal was found by Cheapflights users on 8/2. 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 8/2910:32 am -
2 stops13h 11m
Wed 9/211:00 pm -
1 stop7h 57m
Deal found 8/2![United Airlines logo]()
$484
This United Airlines deal was found by Cheapflights users on 8/6. 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.
Sun 9/66:15 am -
2 stops11h 09m
Wed 9/1611:00 pm -
1 stop7h 39m
Deal found 8/6![United Airlines logo]()
$484
This United Airlines deal was found by Cheapflights users on 8/4. 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 9/110:32 am -
1 stop8h 35m
Sun 9/1311:00 pm -
1 stop7h 39m
Deal found 8/4![United Airlines logo]()
$489
This United Airlines deal was found by Cheapflights users on 8/6. 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 9/26:15 am -
2 stops14h 27m
Tue 9/155:20 pm -
2 stops13h 19m
Deal found 8/6![United Airlines logo]()
$489
This United Airlines deal was found by Cheapflights users on 8/6. 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 9/310:32 am -
2 stops15h 54m
Fri 9/115:20 pm -
2 stops13h 37m
Deal found 8/6![United Airlines logo]()
$499
This United Airlines deal was found by Cheapflights users on 8/2. 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 8/2710:32 am -
2 stops15h 54m
Mon 8/317:35 pm -
2 stops11h 22m
Deal found 8/2![United Airlines logo]()
$499
Last-minute flights from Allentown to SeattleDiscover last-minute flight deals from Allentown to Seattle. Data last updated August 7, 2026 and is based on user searches.
Discover last-minute flight deals from Allentown to Seattle. Data last updated August 7, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 8/4. 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.
Mon 8/247:00 am -
1 stop29h 19m
Sun 8/307:06 pm -
1 stop17h 35m
Deal found 8/4![Multiple Airlines logo]()
$307
This Kiwi.com deal was found by Cheapflights users on 8/4. 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.
Mon 8/247:00 am -
1 stop29h 19m
Sat 8/297:06 pm -
2 stops19h 27m
Deal found 8/4![Multiple Airlines logo]()
$351
This United Airlines deal was found by Cheapflights users on 8/4. 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 8/256:15 am -
2 stops12h 59m
Sun 8/3011:00 pm -
1 stop7h 57m
Deal found 8/4![United Airlines logo]()
$384
This United Airlines deal was found by Cheapflights users on 8/2. 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 9/110:32 am -
1 stop8h 35m
Sat 9/125:20 pm -
2 stops13h 19m
Deal found 8/2![United Airlines logo]()
$364
This Delta deal was found by Cheapflights users on 8/5. 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 9/26:09 pm -
1 stop8h 48m
Sat 9/1210:59 pm -
1 stop10h 16m
Deal found 8/5![Delta logo]()
$403
This United Airlines deal was found by Cheapflights users on 8/6. 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 9/510:32 am -
2 stops13h 11m
Sun 9/1311:00 pm -
1 stop7h 39m
Deal found 8/6![United Airlines logo]()
$394
This Delta deal was found by Cheapflights users on 8/6. 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 9/51:10 pm -
1 stop8h 55m
Wed 9/1611:35 am -
1 stop7h 41m
Deal found 8/6![Delta logo]()
$399
This Delta deal was found by Cheapflights users on 8/6. 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 9/86:08 pm -
1 stop8h 50m
Wed 9/1611:35 am -
1 stop7h 41m
Deal found 8/6![Delta logo]()
$359
This Delta deal was found by Cheapflights users on 8/6. 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 9/226:08 pm -
1 stop8h 50m
Fri 9/2510:59 pm -
1 stop10h 16m
Deal found 8/6![Delta logo]()
$389
This United Airlines deal was found by Cheapflights users on 8/3. 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 9/245:46 pm -
1 stop8h 10m
Mon 9/2811:13 pm -
1 stop7h 22m
Deal found 8/3![United Airlines logo]()
$379
This American Airlines deal was found by Cheapflights users on 8/6. 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 9/295:45 am -
1 stop8h 40m
Sat 10/36:18 am -
1 stop7h 22m
Deal found 8/6![American Airlines logo]()
$369
One-way flights from Allentown to SeattleSearch for one-way flight options from Allentown to Seattle. Find affordable one-way fares based on user searches. Data last updated August 7, 2026.
Search for one-way flight options from Allentown to Seattle. Find affordable one-way fares based on user searches. Data last updated August 7, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/4. 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.
Mon 9/147:30 am -
2 stops38h 06m
Deal found 8/4![Multiple Airlines logo]()
$141
This Kiwi.com deal was found by Cheapflights users on 8/4. 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.
Fri 9/117:00 am -
2 stops38h 36m
Deal found 8/4![Multiple Airlines logo]()
$176
This Delta deal was found by Cheapflights users on 8/4. 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 9/96:08 pm -
1 stop8h 50m
Deal found 8/4![Delta logo]()
$180
This Delta deal was found by Cheapflights users on 8/3. 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 10/136:03 pm -
1 stop8h 49m
Deal found 8/3![Delta logo]()
$195
This Kiwi.com deal was found by Cheapflights users on 8/4. 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.
Mon 9/78:00 am -
1 stop28h 19m
Deal found 8/4![Multiple Airlines logo]()
$204
This Kiwi.com deal was found by Cheapflights users on 8/4. 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 9/109:55 pm -
3 stops47h 41m
Deal found 8/4![Multiple Airlines logo]()
$214
This Kiwi.com deal was found by Cheapflights users on 8/4. 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.
Sun 9/62:28 pm -
2 stops45h 51m
Deal found 8/4![Multiple Airlines logo]()
$216
This Kiwi.com deal was found by Cheapflights users on 8/2. 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 10/1312:00 pm -
2 stops24h 51m
Deal found 8/2![Multiple Airlines logo]()
$218
This Delta deal was found by Cheapflights users on 8/4. 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 9/116:08 pm -
1 stop8h 50m
Deal found 8/4![Delta logo]()
$220
Find flight deals from Allentown to Seattle
Discover tips and strategies to find the most affordable flight options for your journey from Allentown (ABE) to Seattle (SEA). 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 August 7, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $307 (Kiwi.com) |
One-way from | $141 (Kiwi.com) |
Popular in | November |
Cheapest in | March |
Average price | $531 |
Cheapflights Fare Finder
Customize your flight search to find flights from Allentown to Seattle 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 August 7, 2026.
Use the filters below to find and compare flights from Allentown to Seattle that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
AllentownSeattle
ABE Allentown-Bethlehem - SEA Seattle/Tacoma Intl
ABESEA
Allentown-Bethlehem
Tue 9/1
10:32 am-4:07 pm
1 stop8h 35m
Seattle/Tacoma Intl
Sat 9/12
5:20 pm-9:39 am
2 stops13h 19m
$364
AllentownSeattle
ABE Allentown-Bethlehem - SEA Seattle/Tacoma Intl
ABESEA
Allentown-Bethlehem
Fri 10/2
5:43 pm-10:56 pm
1 stop8h 13m
Seattle/Tacoma Intl
Mon 10/5
11:13 pm-9:35 am
1 stop7h 22m
$379
Quickest round-trip
AllentownSeattle
ABE Allentown-Bethlehem - SEA Seattle/Tacoma Intl
ABESEA
Allentown-Bethlehem
Thu 9/24
6:20 am-11:27 am
1 stop8h 07m
Seattle/Tacoma Intl
Sun 9/27
11:13 pm-9:35 am
1 stop7h 22m
$379
AllentownSeattle
ABE Allentown-Bethlehem - SEA Seattle/Tacoma Intl
ABESEA
Allentown-Bethlehem
Tue 9/22
6:08 pm-11:58 pm
1 stop8h 50m
Seattle/Tacoma Intl
Fri 9/25
10:59 pm-12:15 pm
1 stop10h 16m
$389
AllentownSeattle
ABE Allentown-Bethlehem - SEA Seattle/Tacoma Intl
ABESEA
Allentown-Bethlehem
Wed 9/2
6:09 pm-11:57 pm
1 stop8h 48m
Seattle/Tacoma Intl
Wed 9/16
11:35 am-10:16 pm
1 stop7h 41m
$429
AllentownSeattle
ABE Allentown-Bethlehem - SEA Seattle/Tacoma Intl
ABESEA
Allentown-Bethlehem
Sat 8/29
10:32 am-8:43 pm
2 stops13h 11m
Seattle/Tacoma Intl
Wed 9/2
11:00 pm-9:57 am
1 stop7h 57m
$484
AllentownSeattle
ABE Allentown-Bethlehem - SEA Seattle/Tacoma Intl
ABESEA
Allentown-Bethlehem
Sun 9/6
6:15 am-2:24 pm
2 stops11h 09m
Seattle/Tacoma Intl
Wed 9/16
11:00 pm-9:39 am
1 stop7h 39m
$484
AllentownSeattle
ABE Allentown-Bethlehem - SEA Seattle/Tacoma Intl
ABESEA
Allentown-Bethlehem
Tue 9/1
10:32 am-4:07 pm
1 stop8h 35m
Seattle/Tacoma Intl
Sun 9/13
11:00 pm-9:39 am
1 stop7h 39m
$489
AllentownSeattle
ABE Allentown-Bethlehem - SEA Seattle/Tacoma Intl
ABESEA
Allentown-Bethlehem
Wed 9/2
6:15 am-5:42 pm
2 stops14h 27m
Seattle/Tacoma Intl
Tue 9/15
5:20 pm-9:39 am
2 stops13h 19m
$489
AllentownSeattle
ABE Allentown-Bethlehem - SEA Seattle/Tacoma Intl
ABESEA
Allentown-Bethlehem
Thu 9/3
10:32 am-11:26 pm
2 stops15h 54m
Seattle/Tacoma Intl
Fri 9/11
5:20 pm-9:57 am
2 stops13h 37m
$499
Showing 1-10 of 20 resultsSorted by cheapest first
Compare providers for flights from Allentown to Seattle
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 Allentown to Seattle in August.
| 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 Allentown-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Allentown-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Allentown-Seattle flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Allentown-Seattle 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 Allentown-Seattle 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 Allentown to Seattle
Have a flexible travel schedule? Discover the best time to fly to Seattle from Allentown with our price prediction graph.
ABE-SEA
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 Allentown to Seattle
What is the cheapest month to book a flight from Allentown to Seattle?
Currently, March is the cheapest month in which you can book a flight from Allentown to Seattle (average of $276). Flying from Allentown to Seattle in November is currently the most expensive (average of $1,078). 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 Allentown to Seattle?
Airfare is below average for this route at the moment.
Allentown to Seattle flights typically cost between $376 and $646 in August.The cheapest round-trip price found within the last 5 days was $307 on Multiple Airlines (Aug 24-Aug 30).
Reviews of airlines servicing Seattle
Get insights into the airlines that provide service to Seattle. 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 Seattle. Reviews last updated August 7, 2026.
Get a feel of what it's like to fly with United Airlines and American Airlines from Allentown to Seattle by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
7.7
Overall
7.4
Comfort
7.3
Food
6.7
Entertainment
7.1
Crew
8.1
Reviews
1 / 20
2.0
MediocreDawn,Aug 2026
ORD - DEN
Boarding
7.7
Overall
7.4
Comfort
7.3
Food
6.7
Entertainment
7.1
Crew
8.1
Reviews
1 / 20
2.0
MediocreDawn,Aug 2026
ORD - DEN
Boarding
7.7
Overall
7.4
Comfort
7.3
Food
6.7
Entertainment
7.1
Crew
8.1
Reviews
1 / 20
2.0
MediocreDawn,Aug 2026
ORD - DEN
Related info for your journey
Find useful and relevant information for your journey from Allentown to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Seattle?
Book flights to Seattle if you plan to visit one of these locationsSeaTac
Renton
Tacoma
Lacey
Leavenworth
Olympia
Tukwila
Edmonds
Snoqualmie
Tumwater
Centralia
Marysville
Puyallup
Kent
Ellensburg
Fife
Ocean Shores
Lakewood
Lynnwood
Poulsbo
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.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Other flights from Allentown
Popular flights
Seattle flight routes
Alternative routes for Allentown to Seattle
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Seattle by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Allentown to Seattle by cabin class
Find flights from Allentown to Seattle, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Allentown and Seattle flights
Browse other Allentown and Seattle flight options. Last updated on August 7, 2026.
Other flights from Allentown
Browse through other flights departing from Allentown. Flights are based on user searches made on Cheapflights and were last updated on August 7, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to Seattle
Explore flights to Seattle departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on August 7, 2026.
Top 2 airlines flying from Allentown to Seattle
Discover the top 2 airlines that operate flights from Allentown to Seattle. 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 August 7, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$249 | Average$494 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$276 | Average$496 | FlexibilityNo cancel fee | On-time71% |