$115+ 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 8/17. Fares are subject to change and may not be available on all flights or dates of travel.
ABE — SEA
Jul 10 — Jul 171
Round-trip
1 adult, Economy
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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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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 June 10, 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 June 10, 2026.
This United Airlines deal was found by Cheapflights users on 6/6. 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 10/36:20 am
ABE
- SEA
1 stop8h 07m
United Airlines
Tue 10/1311:13 pm
SEA
- ABE
1 stop7h 22m
United Airlines
Deal found 6/6![United Airlines logo]()
$349
This Delta deal was found by Cheapflights users on 6/8. 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 10/36:13 pm
ABE
- SEA
1 stop8h 46m
Delta
Tue 10/135:45 am
SEA
- ABE
2 stops14h 01m
Delta
Deal found 6/8![Delta logo]()
$354
This Delta deal was found by Cheapflights users on 6/5. 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.
Mon 8/246:13 pm
ABE
- SEA
1 stop8h 44m
Delta
Tue 9/16:00 am
SEA
- ABE
1 stop8h 23m
Delta
Deal found 6/5![Delta logo]()
$359
This Delta deal was found by Cheapflights users on 6/5. 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.
Mon 8/246:13 pm
ABE
- SEA
1 stop8h 44m
Delta
Mon 8/3111:10 pm
SEA
- ABE
2 stops15h 13m
Delta
Deal found 6/5![Delta logo]()
$364
This Delta deal was found by Cheapflights users on 6/9. 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 8/236:09 pm
ABE
- SEA
1 stop8h 48m
Delta
Tue 9/16:00 am
SEA
- ABE
1 stop8h 23m
Delta
Deal found 6/9![Delta logo]()
$372
This Delta deal was found by Cheapflights users on 6/6. 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 10/36:13 pm
ABE
- SEA
1 stop8h 46m
Delta
Wed 10/76:00 am
SEA
- ABE
1 stop8h 12m
Delta
Deal found 6/6![Delta logo]()
$377
This Delta deal was found by Cheapflights users on 6/6. 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.
Mon 10/56:13 pm
ABE
- SEA
1 stop8h 46m
Delta
Wed 10/76:00 am
SEA
- ABE
1 stop8h 12m
Delta
Deal found 6/6![Delta logo]()
$378
This Delta deal was found by Cheapflights users on 6/5. 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.
Tue 8/256:16 am
ABE
- SEA
2 stops11h 28m
Delta
Tue 9/19:35 am
SEA
- ABE
2 stops9h 48m
Delta
Deal found 6/5![Delta logo]()
$387
This American Airlines deal was found by Cheapflights users on 6/9. 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 8/265:12 pm
ABE
- SEA
1 stop9h 47m
American Airlines
Mon 8/315:50 am
SEA
- ABE
1 stop7h 52m
American Airlines
Deal found 6/9![American Airlines logo]()
$393
This United Airlines deal was found by Cheapflights users on 6/8. 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 10/36:20 am
ABE
- SEA
2 stops12h 42m
United Airlines
Wed 10/1411:13 pm
SEA
- ABE
1 stop7h 22m
United Airlines
Deal found 6/8![United Airlines logo]()
$395
This American Airlines deal was found by Cheapflights users on 6/10. 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 7/255:11 pm
ABE
- SEA
1 stop10h 41m
American Airlines
Tue 8/255:10 am
SEA
- ABE
1 stop8h 17m
American Airlines
Deal found 6/10![American Airlines logo]()
$398
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 June 10, 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 June 10, 2026.
This Delta deal was found by Cheapflights users on 6/8. 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 10/26:13 pm
ABE
- SEA
1 stop8h 46m
Delta
Tue 10/137:20 am
SEA
- ABE
2 stops12h 26m
Delta
Deal found 6/8![Delta logo]()
$377
This United Airlines deal was found by Cheapflights users on 6/8. 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 9/15:36 pm
ABE
- SEA
1 stop8h 07m
United Airlines
Sun 9/1311:00 pm
SEA
- ABE
1 stop7h 39m
United Airlines
Deal found 6/8![United Airlines logo]()
$474
This Delta deal was found by Cheapflights users on 6/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/56:30 am
ABE
- SEA
2 stops15h 00m
Delta
Sun 11/87:20 am
SEA
- ABE
2 stops12h 26m
Delta
Deal found 6/7![Delta logo]()
$502
This United Airlines deal was found by Cheapflights users on 6/8. 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 10/15:46 pm
ABE
- SEA
1 stop8h 10m
United Airlines
Tue 10/1311:13 pm
SEA
- ABE
1 stop7h 22m
United Airlines
Deal found 6/8![United Airlines logo]()
$512
This United Airlines deal was found by Cheapflights users on 6/7. 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.
Wed 10/710:37 am
ABE
- SEA
2 stops13h 00m
United Airlines
Wed 10/1411:13 pm
SEA
- ABE
1 stop7h 22m
United Airlines
Deal found 6/7![United Airlines logo]()
$517
This Delta deal was found by Cheapflights users on 6/6. 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 8/116:09 pm
ABE
- SEA
1 stop8h 48m
Delta
Mon 9/76:00 am
SEA
- ABE
1 stop8h 23m
Delta
Deal found 6/6![Delta logo]()
$574
This United Airlines deal was found by Cheapflights users on 6/8. 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 10/710:37 am
ABE
- SEA
2 stops13h 38m
United Airlines
Sat 10/177:25 pm
SEA
- ABE
2 stops11h 10m
United Airlines
Deal found 6/8![United Airlines logo]()
$522
This Delta deal was found by Cheapflights users on 6/9. 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 10/36:30 am
ABE
- SEA
2 stops13h 20m
Delta
Tue 10/135:45 am
SEA
- ABE
2 stops14h 01m
Delta
Deal found 6/9![Delta logo]()
$574
This United Airlines deal was found by Cheapflights users on 6/9. 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 9/15:36 pm
ABE
- SEA
1 stop8h 07m
United Airlines
Sat 9/57:00 am
SEA
- ABE
1 stop11h 00m
United Airlines
Deal found 6/9![United Airlines logo]()
$610
Last-minute flights from Allentown to SeattleDiscover last-minute flight deals from Allentown to Seattle. Data last updated June 10, 2026 and is based on user searches.
Discover last-minute flight deals from Allentown to Seattle. Data last updated June 10, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 6/10. 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 6/102:23 pm
ABE
- SEA
2 stops13h 50m
United Airlines
Sat 6/137:00 am
SEA
- ABE
1 stop7h 01m
United Airlines
Deal found 6/10![United Airlines logo]()
$410
This American Airlines deal was found by Cheapflights users on 6/8. 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 7/45:11 pm
ABE
- SEA
1 stop10h 41m
American Airlines
Fri 7/106:00 am
SEA
- ABE
1 stop7h 42m
American Airlines
Deal found 6/8![American Airlines logo]()
$432
This American Airlines deal was found by Cheapflights users on 6/8. 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 7/85:12 pm
ABE
- SEA
1 stop10h 40m
American Airlines
Tue 7/146:00 am
SEA
- ABE
1 stop7h 39m
American Airlines
Deal found 6/8![American Airlines logo]()
$349
This American Airlines deal was found by Cheapflights users on 6/8. 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 7/85:12 pm
ABE
- SEA
1 stop10h 40m
American Airlines
Wed 7/156:00 am
SEA
- ABE
1 stop7h 42m
American Airlines
Deal found 6/8![American Airlines logo]()
$459
This American Airlines deal was found by Cheapflights users on 6/5. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/215:09 pm
ABE
- SEA
1 stop10h 43m
American Airlines
Wed 7/295:10 am
SEA
- ABE
1 stop10h 22m
American Airlines
Deal found 6/5![American Airlines logo]()
$484
This Kiwi.com deal was found by Cheapflights users on 6/10. 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 7/247:30 am
ABE
- SEA
1 stop28h 47m
Multiple Airlines
Tue 8/258:13 pm
SEA
- ABE
2 stops45h 18m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$429
This Delta deal was found by Cheapflights users on 6/10. 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 7/246:05 pm
ABE
- SEA
1 stop8h 54m
Delta
Tue 8/256:00 am
SEA
- ABE
1 stop8h 23m
Delta
Deal found 6/10![Delta logo]()
$472
This American Airlines deal was found by Cheapflights users on 6/8. 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 7/255:11 pm
ABE
- SEA
1 stop10h 41m
American Airlines
Tue 8/255:50 am
SEA
- ABE
1 stop7h 52m
American Airlines
Deal found 6/8![American Airlines logo]()
$377
This American Airlines deal was found by Cheapflights users on 6/10. 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 7/265:12 pm
ABE
- SEA
1 stop10h 40m
American Airlines
Mon 8/245:50 am
SEA
- ABE
1 stop7h 52m
American Airlines
Deal found 6/10![American Airlines logo]()
$482
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 June 10, 2026.
Search for one-way flight options from Allentown to Seattle. Find affordable one-way fares based on user searches. Data last updated June 10, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/9. 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 8/172:54 pm
ABE
- SEA
1 stop21h 54m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$115
This American Airlines deal was found by Cheapflights users on 6/8. 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 7/85:12 pm
ABE
- SEA
1 stop10h 40m
American Airlines
Deal found 6/8![American Airlines logo]()
$175
This Delta deal was found by Cheapflights users on 6/5. 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.
Mon 7/276:05 pm
ABE
- SEA
1 stop8h 54m
Delta
Deal found 6/5![Delta logo]()
$180
This Kiwi.com deal was found by Cheapflights users on 6/9. 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 8/142:54 pm
ABE
- SEA
1 stop21h 10m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$190
This Delta deal was found by Cheapflights users on 6/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/236:09 pm
ABE
- SEA
1 stop8h 48m
Delta
Deal found 6/7![Delta logo]()
$200
This American Airlines deal was found by Cheapflights users on 6/8. 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 7/105:12 pm
ABE
- SEA
1 stop10h 47m
American Airlines
Deal found 6/8![American Airlines logo]()
$219
This Delta deal was found by Cheapflights users on 6/5. 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 7/86:05 pm
ABE
- SEA
1 stop8h 54m
Delta
Deal found 6/5![Delta logo]()
$224
This Kiwi.com deal was found by Cheapflights users on 6/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/137:30 am
ABE
- SEA
1 stop28h 47m
Multiple Airlines
Deal found 6/5![Multiple Airlines logo]()
$227
This American Airlines deal was found by Cheapflights users on 6/9. 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 7/145:09 pm
ABE
- SEA
1 stop10h 43m
American Airlines
Deal found 6/9![American Airlines logo]()
$230
This Kiwi.com deal was found by Cheapflights users on 6/8. 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 7/108:49 pm
ABE
- SEA
2 stops39h 28m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$242
This Kiwi.com deal was found by Cheapflights users on 6/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/312:57 pm
ABE
- SEA
1 stop21h 20m
Multiple Airlines
Deal found 6/6![Multiple Airlines logo]()
$248
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 June 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $349 (United Airlines) |
One-way from | $115 (Kiwi.com) |
Popular in | July |
Cheapest in | March |
Average price | $682 |
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 June 10, 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 - SEA
ABESEA
Allentown-Bethlehem
Fri 10/2
6:13 pm-11:59 pm
1 stop8h 46m
Seattle/Tacoma Intl
Tue 10/13
7:20 am-10:46 pm
2 stops12h 26m
$377
AllentownSeattle
ABE - SEA
ABESEA
Allentown-Bethlehem
Tue 9/1
5:36 pm-10:43 pm
1 stop8h 07m
Seattle/Tacoma Intl
Sun 9/13
11:00 pm-9:39 am
1 stop7h 39m
$474
AllentownSeattle
ABE - SEA
ABESEA
Allentown-Bethlehem
Thu 11/5
6:30 am-6:30 pm
2 stops15h 00m
Seattle/Tacoma Intl
Sun 11/8
7:20 am-10:46 pm
2 stops12h 26m
$502
Quickest round-trip
AllentownSeattle
ABE - SEA
ABESEA
Allentown-Bethlehem
Thu 10/1
5:46 pm-10:56 pm
1 stop8h 10m
Seattle/Tacoma Intl
Tue 10/13
11:13 pm-9:35 am
1 stop7h 22m
$512
AllentownSeattle
ABE - SEA
ABESEA
Allentown-Bethlehem
Wed 10/7
10:37 am-8:37 pm
2 stops13h 00m
Seattle/Tacoma Intl
Wed 10/14
11:13 pm-9:35 am
1 stop7h 22m
$517
AllentownSeattle
ABE - SEA
ABESEA
Allentown-Bethlehem
Wed 10/7
10:37 am-9:15 pm
2 stops13h 38m
Seattle/Tacoma Intl
Sat 10/17
7:25 pm-9:35 am
2 stops11h 10m
$522
AllentownSeattle
ABE - SEA
ABESEA
Allentown-Bethlehem
Tue 8/11
6:09 pm-11:57 pm
1 stop8h 48m
Seattle/Tacoma Intl
Mon 9/7
6:00 am-5:23 pm
1 stop8h 23m
$574
AllentownSeattle
ABE - SEA
ABESEA
Allentown-Bethlehem
Sat 10/3
6:30 am-4:50 pm
2 stops13h 20m
Seattle/Tacoma Intl
Tue 10/13
5:45 am-10:46 pm
2 stops14h 01m
$574
AllentownSeattle
ABE - SEA
ABESEA
Allentown-Bethlehem
Tue 9/1
5:36 pm-10:43 pm
1 stop8h 07m
Seattle/Tacoma Intl
Sat 9/5
7:00 am-9:00 pm
1 stop11h 00m
$610
Cheapest one-way
AllentownSeattle
ABE - SEA
ABESEA
Allentown-Bethlehem
Sun 8/23
6:09 pm-11:57 pm
1 stop8h 48m
$200
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 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 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 July is currently the most expensive (average of $704). 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?
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 June 10, 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.
Comfort
7.3
Overall
7.4
Entertainment
7.1
Crew
8.1
Food
6.6
Boarding
7.7
Reviews
1 / 20
4.0
OkayDynasty,May 2026
LAX - EWR
Comfort
7.3
Overall
7.4
Entertainment
7.1
Crew
8.1
Food
6.6
Boarding
7.7
Reviews
1 / 20
4.0
OkayDynasty,May 2026
LAX - EWR
Comfort
7.3
Overall
7.4
Entertainment
7.1
Crew
8.1
Food
6.6
Boarding
7.7
Reviews
1 / 20
4.0
OkayDynasty,May 2026
LAX - EWR
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
Tacoma
Lacey
Ocean Shores
Leavenworth
Olympia
Edmonds
Snoqualmie
Tumwater
Tukwila
Puyallup
Kent
Lynnwood
Renton
Ellensburg
Fife
Lakewood
Issaquah
Marysville
Shoreline
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Allentown and Seattle flights
Browse other Allentown and Seattle flight options. Last updated on June 10, 2026.
Other flights from Allentown
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Check out other popular destinations found by fellow travelers in 2026
Other flights to Seattle
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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 June 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$249 | Average$509 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$276 | Average$503 | FlexibilityNo cancel fee | On-time71% |