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$257+ Cheap flights from Lehigh Valley to Seattle (SEA)

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 2/24. Fares are subject to change and may not be available on all flights or dates of travel.
ABE — SEA
Feb 24 — Mar 31
Tue 2/24
Tue 3/3
1 adult, Economy
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Cheap flight deals from Lehigh Valley to Seattle

Cheapest flights from Lehigh Valley to Seattle
Explore the most affordable flight options available from Lehigh Valley to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 25, 2026.

This United Airlines deal was found by Cheapflights users on 1/23. 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 2/245:23 pm
ABE
-
SEA
1 stop8h 20m
United Airlines
Sat 2/2811:59 pm
SEA
-
ABE
1 stop7h 02m
United Airlines
Deal found 1/23$257
This American Airlines deal was found by Cheapflights users on 1/24. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/146:04 am
ABE
-
SEA
2 stops12h 53m
American Airlines
Fri 2/201:44 pm
SEA
-
ABE
1 stop7h 45m
American Airlines
Deal found 1/24$304
This American Airlines deal was found by Cheapflights users on 1/22. 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 3/66:04 am
ABE
-
SEA
1 stop9h 47m
American Airlines
Mon 3/910:08 pm
SEA
-
ABE
1 stop10h 32m
American Airlines
Deal found 1/22$337
This United Airlines deal was found by Cheapflights users on 1/24. 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 2/245:23 pm
ABE
-
SEA
1 stop8h 20m
United Airlines
Tue 3/311:59 pm
SEA
-
ABE
1 stop7h 02m
United Airlines
Deal found 1/24$357
This United Airlines deal was found by Cheapflights users on 1/24. 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 2/245:23 pm
ABE
-
SEA
1 stop8h 20m
United Airlines
Mon 3/27:29 pm
SEA
-
ABE
2 stops11h 32m
United Airlines
Deal found 1/24$362
This United Airlines deal was found by Cheapflights users on 1/24. 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.
Sat 2/142:55 pm
ABE
-
SEA
1 stop10h 48m
United Airlines
Fri 2/207:33 pm
SEA
-
ABE
2 stops13h 17m
United Airlines
Deal found 1/24$365
This United Airlines deal was found by Cheapflights users on 1/23. 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 3/1010:31 am
ABE
-
SEA
2 stops10h 33m
United Airlines
Mon 3/167:35 pm
SEA
-
ABE
2 stops11h 21m
United Airlines
Deal found 1/23$368
This United Airlines deal was found by Cheapflights users on 1/24. 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.
Fri 2/64:57 pm
ABE
-
SEA
1 stop8h 46m
United Airlines
Sun 2/2211:59 pm
SEA
-
ABE
1 stop7h 02m
United Airlines
Deal found 1/24$373
This American Airlines deal was found by Cheapflights users on 1/24. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/512:57 pm
ABE
-
SEA
1 stop10h 25m
American Airlines
Tue 5/1212:28 pm
SEA
-
ABE
1 stop8h 00m
American Airlines
Deal found 1/24$392

Find flight deals from Lehigh Valley to Seattle

Keep the following information in mind while searching for Lehigh Valley to Seattle flight deals. Data was last updated January 25, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$257
(United Airlines)

Popular in

July

Cheapest in

October

Average price

$572
Provider with most accurate pricing for Allentown-Bethlehem-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Allentown-Bethlehem-Seattle/Tacoma Intl flights.
Search Deals
From Lehigh Valley to Seattle/Tacoma Intl
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($111 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($25 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Lehigh Valley 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 January 25, 2026.
Use the filters below to find and compare flights from Lehigh Valley to Seattle that are best for you.

Fly from

Lehigh Valley

Fly to

Seattle

Route

Depart

Return

Price

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Tue 2/24

5:23 pm-10:43 pm

1 stop8h 20m

Seattle/Tacoma Intl

Sat 2/28

11:59 pm-10:01 am

1 stop7h 02m

$257

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Wed 2/25

5:23 pm-10:43 pm

1 stop8h 20m

Seattle/Tacoma Intl

Mon 3/2

11:59 pm-10:01 am

1 stop7h 02m

$357

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Tue 2/24

5:23 pm-10:43 pm

1 stop8h 20m

Seattle/Tacoma Intl

Tue 3/3

11:59 pm-10:01 am

1 stop7h 02m

$357

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Sat 2/28

5:23 pm-10:43 pm

1 stop8h 20m

Seattle/Tacoma Intl

Tue 3/3

11:59 pm-10:01 am

1 stop7h 02m

$357

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Wed 2/25

5:23 pm-10:43 pm

1 stop8h 20m

Seattle/Tacoma Intl

Tue 3/3

11:59 pm-10:01 am

1 stop7h 02m

$357

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Tue 3/10

10:31 am-6:04 pm

2 stops10h 33m

Seattle/Tacoma Intl

Mon 3/16

11:59 pm-9:56 am

1 stop6h 57m

$362

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Tue 3/31

5:38 pm-10:37 pm

1 stop7h 59m

Seattle/Tacoma Intl

Tue 4/7

11:59 pm-9:58 am

1 stop6h 59m

$362

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Sat 2/28

2:55 pm-10:43 pm

1 stop10h 48m

Seattle/Tacoma Intl

Mon 3/2

5:20 pm-10:01 am

2 stops13h 41m

$362

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Sat 2/14

2:55 pm-12:59 am

2 stops13h 04m

Seattle/Tacoma Intl

Fri 2/20

7:33 pm-11:50 am

2 stops13h 17m

$370

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Fri 2/6

4:57 pm-10:43 pm

1 stop8h 46m

Seattle/Tacoma Intl

Sun 2/22

11:59 pm-10:01 am

1 stop7h 02m

$373

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/24

Showing 1-10 of 20 results
1
2

Best time to book a flight from Lehigh Valley to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Lehigh Valley with our price prediction graph.
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 Lehigh Valley to Seattle

What is the cheapest month to book a flight from Lehigh Valley to Seattle?

Currently, February is the cheapest month in which you can book a flight from Lehigh Valley to Seattle (average of $252). Flying from Lehigh Valley to Seattle in December is currently the most expensive (average of $582). 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.

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 January 25, 2026.
Get a feel of what it's like to fly with United Airlines and American Airlines from Lehigh Valley to Seattle by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,198 reviews

Comfort

7.3

Entertainment

7.1

Overall

7.4

Crew

8.1

Food

6.6

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,198 reviews
United Airlines
7.4
Good
9,198 reviews

Comfort

7.3

Entertainment

7.1

Overall

7.4

Crew

8.1

Food

6.6

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
American Airlines
7.2
Good
11,197 reviews
United Airlines
7.4
Good
9,198 reviews

Comfort

7.3

Entertainment

7.1

Overall

7.4

Crew

8.1

Food

6.6

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Related info for your journey

Find useful and relevant information for your journey from Lehigh Valley to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Seattle from Lehigh Valley?

    Located just 11.4 mi from the city center, Seattle/Tacoma Intl (SEA) is the airport most travelers will use when flying to Seattle from Lehigh Valley.

  • How long is the flight from Lehigh Valley to Seattle?

    United Airlines can get you from Lehigh Valley to Seattle in just under 8h 20m. Your travel time can differ by up to . The distance between Lehigh Valley and Seattle is about 2336 mi.

  • Can I find deals for flights from Lehigh Valley to Seattle that include hotel bookings?

    Yes. In addition to deals on Lehigh Valley to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Lehigh Valley to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Lehigh Valley to Seattle.

  • Can I find deals for business class flights from Lehigh Valley to Seattle?

    Yes. Cheapflights offers flight deals from Lehigh Valley to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Lehigh Valley to Seattle?

    Currently, February is the cheapest month in which you can book a flight from Lehigh Valley to Seattle (average of $252). Flying from Lehigh Valley to Seattle in December is currently the most expensive (average of $582). 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.

See more FAQs

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
SeaTac
Lakewood
Ocean Shores
Olympia
Lynnwood
Lacey
Edmonds
Renton
Puyallup
Kirkland
Kent
Tukwila
Fife
Aberdeen
Shoreline
Marysville
Centralia
Federal Way
Chehalis

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Lehigh Valley to Seattle

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Lehigh Valley to Seattle

Discover the top 2 airlines that operate flights from Lehigh Valley 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 January 25, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$289Average$467FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$293Average$623FlexibilityNo cancel feeOn-time69%

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