$220+ 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 3/2. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — ABE
Nov 24 — Dec 11
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
Cheapest
Best
Last-minute
One-way
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 October 25, 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 October 25, 2026.
This American Airlines deal was found by Cheapflights users on 10/23. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/36:20 am -
1 stop8h 22m
Sun 12/66:12 pm -
1 stop9h 35m
Deal found 10/23![American Airlines logo]()
$417
This United Airlines deal was found by Cheapflights users on 10/23. 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.
Thu 12/37:30 pm -
2 stops10h 58m
Sun 12/66:00 am -
1 stop8h 44m
Deal found 10/23![United Airlines logo]()
$422
This Delta deal was found by Cheapflights users on 10/24. 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.
Mon 11/236:00 am -
1 stop8h 15m
Tue 12/15:58 pm -
1 stop8h 57m
Deal found 10/24![Delta logo]()
$471
This Delta deal was found by Cheapflights users on 10/23. 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.
Sun 11/16:00 am -
1 stop8h 16m
Wed 11/116:00 pm -
1 stop8h 57m
Deal found 10/23![Delta logo]()
$547
This American Airlines deal was found by Cheapflights users on 10/21. 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.
Sun 11/110:43 am -
1 stop9h 16m
Wed 11/116:15 pm -
1 stop9h 20m
Deal found 10/21![American Airlines logo]()
$554
This Delta deal was found by Cheapflights users on 10/20. 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.
Mon 10/2610:35 pm -
1 stop10h 30m
Sat 10/312:30 pm -
1 stop9h 00m
Deal found 10/20![Delta logo]()
$558
This American Airlines deal was found by Cheapflights users on 10/22. 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.
Fri 10/231:25 pm -
1 stop8h 03m
Tue 11/35:37 am -
2 stops12h 14m
Deal found 10/22![American Airlines logo]()
$584
This United Airlines deal was found by Cheapflights users on 10/21. 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 11/510:50 am -
1 stop7h 12m
Mon 11/95:36 pm -
1 stop8h 31m
Deal found 10/21![United Airlines logo]()
$589
This American Airlines deal was found by Cheapflights users on 10/25. 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.
Mon 11/26:14 am -
1 stop8h 27m
Mon 11/96:15 pm -
1 stop9h 20m
Deal found 10/25![American Airlines logo]()
$621
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 October 25, 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 October 25, 2026.
This American Airlines deal was found by Cheapflights users on 10/21. 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.
Sun 2/2811:09 am -
1 stop8h 32m
Tue 3/97:17 am -
1 stop9h 37m
Deal found 10/21![American Airlines logo]()
$417
This United Airlines deal was found by Cheapflights users on 10/23. 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.
Thu 12/37:30 pm -
2 stops10h 58m
Sun 12/66:00 am -
1 stop8h 44m
Deal found 10/23![United Airlines logo]()
$422
This Delta deal was found by Cheapflights users on 10/24. 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.
Mon 11/236:00 am -
1 stop8h 15m
Tue 12/15:58 pm -
1 stop8h 57m
Deal found 10/24![Delta logo]()
$471
This United Airlines deal was found by Cheapflights users on 10/24. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/210:52 am -
1 stop6h 59m
Sat 2/66:00 am -
1 stop8h 58m
Deal found 10/24![United Airlines logo]()
$547
Last-minute flights from Seattle to AllentownDiscover last-minute flight deals from Seattle to Allentown. Data last updated October 25, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Allentown. Data last updated October 25, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 10/22. 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.
Fri 10/231:25 pm -
1 stop8h 03m
Tue 11/35:37 am -
2 stops12h 14m
Deal found 10/22![American Airlines logo]()
$584
This United Airlines deal was found by Cheapflights users on 10/22. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/237:25 pm -
2 stops11h 10m
Tue 11/36:15 am -
2 stops13h 12m
Deal found 10/22![United Airlines logo]()
$677
This Delta deal was found by Cheapflights users on 10/20. 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.
Mon 10/2610:35 pm -
1 stop10h 30m
Sat 10/312:30 pm -
1 stop9h 00m
Deal found 10/20![Delta logo]()
$558
This United Airlines deal was found by Cheapflights users on 10/20. 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.
Mon 10/2610:50 am -
1 stop7h 12m
Fri 10/305:36 pm -
1 stop9h 23m
Deal found 10/20![United Airlines logo]()
$695
This Delta deal was found by Cheapflights users on 10/23. 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.
Sun 11/16:00 am -
1 stop8h 16m
Wed 11/116:00 pm -
1 stop8h 57m
Deal found 10/23![Delta logo]()
$547
This American Airlines deal was found by Cheapflights users on 10/21. 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.
Sun 11/110:43 am -
1 stop9h 16m
Wed 11/116:15 pm -
1 stop9h 20m
Deal found 10/21![American Airlines logo]()
$554
This American Airlines deal was found by Cheapflights users on 10/25. 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.
Mon 11/26:14 am -
1 stop8h 27m
Mon 11/96:15 pm -
1 stop9h 20m
Deal found 10/25![American Airlines logo]()
$621
This United Airlines deal was found by Cheapflights users on 10/21. 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 11/510:50 am -
1 stop7h 12m
Mon 11/95:36 pm -
1 stop8h 31m
Deal found 10/21![United Airlines logo]()
$589
This Delta deal was found by Cheapflights users on 10/24. 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.
Mon 11/236:00 am -
1 stop8h 15m
Tue 12/15:58 pm -
1 stop8h 57m
Deal found 10/24![Delta logo]()
$471
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 October 25, 2026.
Search for one-way flight options from Seattle to Allentown. Find affordable one-way fares based on user searches. Data last updated October 25, 2026.
This Delta deal was found by Cheapflights users on 10/22. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/211:50 am -
1 stop7h 56m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![Delta logo]()
$220
This United Airlines deal was found by Cheapflights users on 10/22. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/295:44 pm -
2 stops12h 51m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![United Airlines logo]()
$230
This American Airlines deal was found by Cheapflights users on 10/22. 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.
Fri 1/2912:47 pm -
1 stop7h 36m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![American Airlines logo]()
$239
This Kiwi.com deal was found by Cheapflights users on 10/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/296:33 pm -
3 stops41h 22m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![Multiple Airlines logo]()
$302
This United Airlines deal was found by Cheapflights users on 10/24. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/2410:50 am -
1 stop7h 12m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/24![United Airlines logo]()
$464
This Delta deal was found by Cheapflights users on 10/24. 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.
Tue 11/246:00 am -
1 stop8h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/24![Delta logo]()
$699
This Delta deal was found by Cheapflights users on 10/24. 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.
Tue 12/2211:06 pm -
1 stop10h 14m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/24![Delta logo]()
$709
This United Airlines deal was found by Cheapflights users on 10/24. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/226:45 am -
2 stops11h 06m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/24![United Airlines logo]()
$1,075
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 October 25, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $417 (American Airlines) |
One-way from | $220 (Delta) |
Popular in | October |
Cheapest in | December |
Average price | $1,034 |
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 October 25, 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
Tue 3/2
11:50 am-10:46 pm
1 stop7h 56m
Allentown-Bethlehem
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$220
SeattleAllentown
SEA Seattle/Tacoma Intl - ABE Allentown-Bethlehem
SEAABE
Seattle/Tacoma Intl
Fri 1/29
5:44 pm-9:35 am
2 stops12h 51m
Allentown-Bethlehem
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$230
Quickest round-trip
SeattleAllentown
SEA Seattle/Tacoma Intl - ABE Allentown-Bethlehem
SEAABE
Seattle/Tacoma Intl
Fri 1/29
12:47 pm-11:23 pm
1 stop7h 36m
Allentown-Bethlehem
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$239
SeattleAllentown
SEA Seattle/Tacoma Intl - ABE Allentown-Bethlehem
SEAABE
Seattle/Tacoma Intl
Fri 1/29
6:33 pm-2:55 pm
3 stops41h 22m
Allentown-Bethlehem
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$302
SeattleAllentown
SEA Seattle/Tacoma Intl - ABE Allentown-Bethlehem
SEAABE
Seattle/Tacoma Intl
Sun 2/28
11:09 am-10:41 pm
1 stop8h 32m
Allentown-Bethlehem
Tue 3/9
7:17 am-1:54 pm
1 stop9h 37m
$417
SeattleAllentown
SEA Seattle/Tacoma Intl - ABE Allentown-Bethlehem
SEAABE
Seattle/Tacoma Intl
Thu 12/3
7:30 pm-9:28 am
2 stops10h 58m
Allentown-Bethlehem
Sun 12/6
6:00 am-11:44 am
1 stop8h 44m
$422
SeattleAllentown
SEA Seattle/Tacoma Intl - ABE Allentown-Bethlehem
SEAABE
Seattle/Tacoma Intl
Mon 11/23
6:00 am-5:15 pm
1 stop8h 15m
Allentown-Bethlehem
Tue 12/1
5:58 pm-11:55 pm
1 stop8h 57m
$471
SeattleAllentown
SEA Seattle/Tacoma Intl - ABE Allentown-Bethlehem
SEAABE
Seattle/Tacoma Intl
Tue 2/2
10:52 am-8:51 pm
1 stop6h 59m
Allentown-Bethlehem
Sat 2/6
6:00 am-11:58 am
1 stop8h 58m
$547
SeattleAllentown
SEA Seattle/Tacoma Intl - ABE Allentown-Bethlehem
SEAABE
Seattle/Tacoma Intl
Tue 11/24
6:00 am-5:15 pm
1 stop8h 15m
Allentown-Bethlehem
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$699
SeattleAllentown
SEA Seattle/Tacoma Intl - ABE Allentown-Bethlehem
SEAABE
Seattle/Tacoma Intl
Tue 12/22
11:06 pm-12:20 pm
1 stop10h 14m
Allentown-Bethlehem
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$709
Showing 1-10 of 11 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 October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 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 October 25, 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.
Crew
8.1
Boarding
7.7
Comfort
7.3
Overall
7.3
Food
6.7
Entertainment
7.1
Reviews
1 / 20
8.0
ExcellentAsha,Sep 2026
LGA - IAH
Crew
8.1
Boarding
7.7
Comfort
7.3
Overall
7.3
Food
6.7
Entertainment
7.1
Reviews
1 / 20
8.0
ExcellentAsha,Sep 2026
LGA - IAH
Crew
8.1
Boarding
7.7
Comfort
7.3
Overall
7.3
Food
6.7
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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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 October 25, 2026.
Alternative routes for Seattle to Allentown
See prices for flight routes from nearby airports that may be better suited for you.
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 October 25, 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 October 25, 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 October 25, 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% |