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$123+ Cheap flights from Lehigh Valley to Seattle (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 2/11. Fares are subject to change and may not be available on all flights or dates of travel.
ABE — SEA
Jan 29 — Feb 51
Thu 1/29
Thu 2/5
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 December 30, 2025.

This Delta deal was found by Cheapflights users on 12/29. 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 12/312:00 pmABE - SEA
2 stops23h 08mDelta
Mon 1/2610:59 pmSEA - ABE
1 stop10h 06mDelta
Deal found 12/29$667
This Delta deal was found by Cheapflights users on 12/29. 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 12/312:00 pmABE - SEA
2 stops25h 36mDelta
Wed 1/216:15 amSEA - ABE
1 stop7h 59mDelta
Deal found 12/29$727
This Delta deal was found by Cheapflights users on 12/29. 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 12/312:00 pmABE - SEA
1 stop9h 43mDelta
Thu 1/227:25 amSEA - ABE
2 stops12h 25mDelta
Deal found 12/29$765
This Delta deal was found by Cheapflights users on 12/29. 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 12/312:00 pmABE - SEA
2 stops23h 08mDelta
Tue 1/2010:59 pmSEA - ABE
1 stop10h 06mDelta
Deal found 12/29$768
This Delta deal was found by Cheapflights users on 12/29. 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 12/312:00 pmABE - SEA
2 stops25h 36mDelta
Sat 1/245:00 amSEA - ABE
2 stops14h 10mDelta
Deal found 12/29$796
This Delta deal was found by Cheapflights users on 12/29. 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 12/312:00 pmABE - SEA
2 stops23h 08mDelta
Sun 1/256:15 amSEA - ABE
1 stop7h 59mDelta
Deal found 12/29$798
This United Airlines deal was found by Cheapflights users on 12/29. 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 12/306:17 amABE - SEA
1 stop19h 30mUnited Airlines
Wed 1/2110:58 amSEA - ABE
1 stop7h 07mUnited Airlines
Deal found 12/29$806
This United Airlines deal was found by Cheapflights users on 12/29. 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 12/306:17 amABE - SEA
1 stop19h 30mUnited Airlines
Sat 1/245:10 pmSEA - ABE
2 stops14h 31mUnited Airlines
Deal found 12/29$811
This United Airlines deal was found by Cheapflights users on 12/29. 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 12/316:17 amABE - SEA
1 stop8h 46mUnited Airlines
Sat 1/2410:58 amSEA - ABE
1 stop7h 07mUnited Airlines
Deal found 12/29$813
This United Airlines deal was found by Cheapflights users on 12/29. 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 12/316:17 amABE - SEA
2 stops33h 32mUnited Airlines
Sun 1/257:30 pmSEA - ABE
2 stops12h 11mUnited Airlines
Deal found 12/29$816

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 December 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$257
(United Airlines)

One-way from

$148
(American Airlines)

Popular in

July

Cheapest in

October

Average price

$637
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
One-way flight from Lehigh Valley to Seattle/Tacoma Intl
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($115 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($24 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 December 30, 2025.
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

Wed 5/6

10:35 am-3:53 pm

1 stop8h 18m

Seattle/Tacoma Intl

Mon 5/11

11:50 pm-10:21 am

1 stop7h 31m

$257

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Tue 5/5

10:35 am-3:53 pm

1 stop8h 18m

Seattle/Tacoma Intl

Tue 5/12

7:37 pm-10:21 am

2 stops11h 44m

$262

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Sat 1/24

6:15 am-11:32 am

1 stop8h 17m

Seattle/Tacoma Intl

Wed 1/28

7:32 pm-10:41 am

2 stops12h 09m

$350

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Tue 2/17

12:50 pm-9:06 pm

1 stop11h 16m

Seattle/Tacoma Intl

Wed 3/11

10:08 pm-11:30 am

1 stop10h 22m

$363

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Wed 2/11

1:02 pm-8:45 pm

1 stop10h 43m

$123

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Thu 1/29

1:02 pm-8:45 pm

1 stop10h 43m

$148

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Thu 2/12

2:14 pm-10:17 am

2 stops47h 03m

$197

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Thu 1/29

8:30 am-9:36 am

3 stops28h 06m

$204

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Wed 2/11

9:00 am-8:08 pm

3 stops38h 08m

$240

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

Thu 2/12

5:23 pm-10:43 pm

1 stop8h 20m

$290

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/30

Showing 1-10 of 12 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 $287). Flying from Lehigh Valley to Seattle in December is currently the most expensive (average of $569). 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 December 30, 2025.
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
9,124 reviews

Comfort

7.3

Food

6.6

Boarding

7.7

Entertainment

7.1

Overall

7.4

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
United Airlines
7.4
Good
9,124 reviews
United Airlines
7.4
Good
9,124 reviews

Comfort

7.3

Food

6.6

Boarding

7.7

Entertainment

7.1

Overall

7.4

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
American Airlines
7.2
Good
11,074 reviews
United Airlines
7.4
Good
9,124 reviews

Comfort

7.3

Food

6.6

Boarding

7.7

Entertainment

7.1

Overall

7.4

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.

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 13h 22m. 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 $287). Flying from Lehigh Valley to Seattle in December is currently the most expensive (average of $569). 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
Edmonds
Lynnwood
Renton
Puyallup
Kirkland
Kent
Tukwila
Marysville
Fife
Aberdeen
Shoreline
Centralia
Federal Way
Chehalis
Tumwater

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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 December 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$293Average$623FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$298Average$470FlexibilityNo cancel feeOn-time71%

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