$195+ 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 10/26. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — ABE
Sep 26 — Oct 31
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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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 August 27, 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 August 27, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/26. 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 9/304:27 pm -
2 stops37h 01m
Mon 10/56:30 am -
1 stop11h 38m
Deal found 8/26![Multiple Airlines logo]()
$365
This United Airlines deal was found by Cheapflights users on 8/23. 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 10/611:13 pm -
1 stop7h 22m
Thu 10/225:43 pm -
1 stop8h 13m
Deal found 8/23![United Airlines logo]()
$369
This American Airlines deal was found by Cheapflights users on 8/25. 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 10/210:59 am -
1 stop8h 19m
Mon 10/55:14 pm -
1 stop8h 56m
Deal found 8/25![American Airlines logo]()
$379
This American Airlines deal was found by Cheapflights users on 8/26. 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 9/306:15 am -
1 stop7h 25m
Mon 10/55:14 pm -
1 stop8h 56m
Deal found 8/26![American Airlines logo]()
$399
This United Airlines deal was found by Cheapflights users on 8/25. 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 10/911:13 pm -
1 stop7h 49m
Fri 10/165:43 pm -
1 stop8h 13m
Deal found 8/25![United Airlines logo]()
$403
This Kiwi.com deal was found by Cheapflights users on 8/25. 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 9/244:27 pm -
1 stop19h 41m
Mon 9/287:30 am -
1 stop10h 38m
Deal found 8/25![Multiple Airlines logo]()
$409
This United Airlines deal was found by Cheapflights users on 8/25. 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 10/27:25 pm -
2 stops11h 37m
Mon 10/55:43 pm -
1 stop8h 10m
Deal found 8/25![United Airlines logo]()
$413
This Delta deal was found by Cheapflights users on 8/25. 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 10/910:35 pm -
1 stop10h 30m
Fri 10/166:14 pm -
1 stop8h 38m
Deal found 8/25![Delta logo]()
$428
This American Airlines deal was found by Cheapflights users on 8/25. 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 8/25![American Airlines logo]()
$432
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 August 27, 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 August 27, 2026.
This American Airlines deal was found by Cheapflights users on 8/22. 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 11/16:12 am -
1 stop8h 29m
Wed 11/116:11 pm -
1 stop9h 24m
Deal found 8/22![American Airlines logo]()
$379
This Kiwi.com deal was found by Cheapflights users on 8/25. 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 9/244:27 pm -
1 stop19h 41m
Mon 9/282:30 pm -
2 stops27h 38m
Deal found 8/25![Multiple Airlines logo]()
$427
This United Airlines deal was found by Cheapflights users on 8/26. 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 2/211:00 am -
1 stop7h 12m
Sat 2/65:36 pm -
1 stop7h 53m
Deal found 8/26![United Airlines logo]()
$469
Last-minute flights from Seattle to AllentownDiscover last-minute flight deals from Seattle to Allentown. Data last updated August 27, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Allentown. Data last updated August 27, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 8/24. 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 8/286:00 am -
1 stop8h 19m
Mon 8/316:09 pm -
1 stop8h 48m
Deal found 8/24![Delta logo]()
$541
This Delta deal was found by Cheapflights users on 8/24. 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 8/296:00 am -
1 stop8h 23m
Mon 8/316:09 pm -
1 stop8h 48m
Deal found 8/24![Delta logo]()
$478
This Delta deal was found by Cheapflights users on 8/23. 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 9/39:10 am -
1 stop10h 13m
Sun 9/66:16 am -
1 stop11h 29m
Deal found 8/23![Delta logo]()
$509
This United Airlines deal was found by Cheapflights users on 8/25. 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 9/55:20 pm -
2 stops13h 37m
Sat 9/125:36 pm -
1 stop8h 09m
Deal found 8/25![United Airlines logo]()
$512
This Delta deal was found by Cheapflights users on 8/24. 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 9/106:00 am -
1 stop8h 21m
Sun 9/136:08 pm -
1 stop8h 50m
Deal found 8/24![Delta logo]()
$538
This United Airlines deal was found by Cheapflights users on 8/25. 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 9/2211:00 pm -
1 stop7h 39m
Sat 9/265:43 pm -
1 stop8h 13m
Deal found 8/25![United Airlines logo]()
$479
This Kiwi.com deal was found by Cheapflights users on 8/25. 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 9/244:27 pm -
1 stop19h 41m
Mon 9/287:30 am -
1 stop10h 38m
Deal found 8/25![Multiple Airlines logo]()
$409
This Kiwi.com deal was found by Cheapflights users on 8/26. 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 9/304:27 pm -
2 stops37h 01m
Mon 10/56:30 am -
1 stop11h 38m
Deal found 8/26![Multiple Airlines logo]()
$365
This American Airlines deal was found by Cheapflights users on 8/26. 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 9/306:15 am -
1 stop7h 25m
Mon 10/55:14 pm -
1 stop8h 56m
Deal found 8/26![American Airlines logo]()
$399
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 August 27, 2026.
Search for one-way flight options from Seattle to Allentown. Find affordable one-way fares based on user searches. Data last updated August 27, 2026.
This Delta deal was found by Cheapflights users on 8/25. 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 10/2611:59 pm -
1 stop9h 06m
Deal found 8/25![Delta logo]()
$195
This American Airlines deal was found by Cheapflights users on 8/22. 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 10/71:25 pm -
1 stop8h 03m
Deal found 8/22![American Airlines logo]()
$220
This Delta deal was found by Cheapflights users on 8/25. 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 10/910:35 pm -
1 stop10h 30m
Deal found 8/25![Delta logo]()
$239
This United Airlines deal was found by Cheapflights users on 8/26. 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 11/45:05 am -
2 stops12h 57m
Deal found 8/26![United Airlines logo]()
$255
This American Airlines deal was found by Cheapflights users on 8/26. 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 11/312:38 pm -
1 stop7h 46m
Deal found 8/26![American Airlines logo]()
$275
This Delta deal was found by Cheapflights users on 8/25. 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 -
1 stop8h 23m
Deal found 8/25![Delta logo]()
$280
This United Airlines deal was found by Cheapflights users on 8/23. 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 9/1311:00 pm -
1 stop7h 39m
Deal found 8/23![United Airlines logo]()
$284
This United Airlines deal was found by Cheapflights users on 8/26. 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 11/35:05 am -
2 stops12h 57m
Deal found 8/26![United Airlines logo]()
$289
This Kiwi.com deal was found by Cheapflights users on 8/25. 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 9/67:06 pm -
1 stop18h 02m
Deal found 8/25![Multiple Airlines logo]()
$309
This Delta deal was found by Cheapflights users on 8/23. 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 9/128:59 am -
1 stop10h 17m
Deal found 8/23![Delta logo]()
$318
This United Airlines deal was found by Cheapflights users on 8/25. 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 9/15:20 pm -
2 stops13h 37m
Deal found 8/25![United Airlines logo]()
$340
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 August 27, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $365 (Kiwi.com) |
One-way from | $195 (Delta) |
Popular in | July |
Cheapest in | January |
Average price | $796 |
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 August 27, 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
Sun 11/1
6:12 am-5:41 pm
1 stop8h 29m
Allentown-Bethlehem
Wed 11/11
6:11 pm-12:35 am
1 stop9h 24m
$379
SeattleAllentown
SEA Seattle/Tacoma Intl - ABE Allentown-Bethlehem
SEAABE
Seattle/Tacoma Intl
Thu 9/24
4:27 pm-3:08 pm
1 stop19h 41m
Allentown-Bethlehem
Mon 9/28
2:30 pm-3:08 pm
2 stops27h 38m
$427
Quickest round-trip
SeattleAllentown
SEA Seattle/Tacoma Intl - ABE Allentown-Bethlehem
SEAABE
Seattle/Tacoma Intl
Tue 2/2
11:00 am-9:12 pm
1 stop7h 12m
Allentown-Bethlehem
Sat 2/6
5:36 pm-10:29 pm
1 stop7h 53m
$469
Cheapest one-way
SeattleAllentown
SEA Seattle/Tacoma Intl - ABE Allentown-Bethlehem
SEAABE
Seattle/Tacoma Intl
Wed 11/4
5:05 am-9:02 pm
2 stops12h 57m
$255
SeattleAllentown
SEA Seattle/Tacoma Intl - ABE Allentown-Bethlehem
SEAABE
Seattle/Tacoma Intl
Tue 9/1
6:00 am-5:23 pm
1 stop8h 23m
$280
SeattleAllentown
SEA Seattle/Tacoma Intl - ABE Allentown-Bethlehem
SEAABE
Seattle/Tacoma Intl
Tue 11/3
5:05 am-9:02 pm
2 stops12h 57m
$289
SeattleAllentown
SEA Seattle/Tacoma Intl - ABE Allentown-Bethlehem
SEAABE
Seattle/Tacoma Intl
Sat 9/12
8:59 am-10:16 pm
1 stop10h 17m
$318
SeattleAllentown
SEA Seattle/Tacoma Intl - ABE Allentown-Bethlehem
SEAABE
Seattle/Tacoma Intl
Tue 9/1
5:20 pm-9:57 am
2 stops13h 37m
$340
SeattleAllentown
SEA Seattle/Tacoma Intl - ABE Allentown-Bethlehem
SEAABE
Seattle/Tacoma Intl
Thu 9/17
6:00 am-5:19 pm
1 stop8h 19m
$380
SeattleAllentown
SEA Seattle/Tacoma Intl - ABE Allentown-Bethlehem
SEAABE
Seattle/Tacoma Intl
Fri 9/18
7:35 pm-9:57 am
2 stops11h 22m
$409
Showing 1-10 of 14 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 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 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
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 August 27, 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.
Comfort
7.3
Crew
8.1
Food
6.7
Boarding
7.7
Overall
7.4
Entertainment
7.1
Reviews
1 / 20
4.0
OkayChris,Aug 2026
MIA - ORD
Comfort
7.3
Crew
8.1
Food
6.7
Boarding
7.7
Overall
7.4
Entertainment
7.1
Reviews
1 / 20
4.0
OkayChris,Aug 2026
MIA - ORD
Comfort
7.3
Crew
8.1
Food
6.7
Boarding
7.7
Overall
7.4
Entertainment
7.1
Reviews
1 / 20
4.0
OkayChris,Aug 2026
MIA - ORD
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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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 August 27, 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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Find flights from Seattle to Allentown, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Seattle and Allentown flights
Browse other Seattle and Allentown flight options. Last updated on August 27, 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 August 27, 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 7,457,451 searches. Data last updated August 27, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$289 | Average$526 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$292 | Average$443 | FlexibilityNo cancel fee | On-time69% |