Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Allentown to Seattle from $158

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Allentown to Seattle departing on 1/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Allentown to Seattle

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
4:57 pm - 10:43 pmABE-SEA
8h 46m1 stop
United Airlines Logo
10:58 am - 9:05 pmSEA-ABE
7h 07m1 stop
$317United Airlines
Find Deal
lun., ene. 19 - jue., ene. 22
United Airlines Logo
4:57 pm - 10:43 pmABE-SEA
8h 46m1 stop
United Airlines Logo
7:30 pm - 10:41 amSEA-ABE
12h 11m2 stops
$322United Airlines
Find Deal
lun., ene. 19 - jue., ene. 22
Delta Logo
5:59 pm - 9:17 amABE-SEA
18h 18m2 stops
Delta Logo
10:59 pm - 12:05 pmSEA-ABE
10h 06m1 stop
$341Delta
Find Deal
mar., ene. 20 - sáb., ene. 24
Delta Logo
5:59 pm - 9:17 amABE-SEA
18h 18m2 stops
Delta Logo
10:59 pm - 12:05 pmSEA-ABE
10h 06m1 stop
$357Delta
Find Deal
mar., ene. 20 - sáb., ene. 24
United Airlines Logo
5:22 pm - 10:28 pmABE-SEA
8h 06m1 stop
United Airlines Logo
10:58 am - 9:05 pmSEA-ABE
7h 07m1 stop
$377United Airlines
Find Deal
mar., dic. 16 - mar., ene. 13
United Airlines Logo
11:30 am - 9:15 pmABE-SEA
12h 45m2 stops
United Airlines Logo
5:10 pm - 10:41 amSEA-ABE
14h 31m2 stops
$382United Airlines
Find Deal
mar., ene. 20 - sáb., ene. 24
United Airlines Logo
11:30 am - 12:59 amABE-SEA
16h 29m2 stops
United Airlines Logo
5:10 pm - 10:41 amSEA-ABE
14h 31m2 stops
$398United Airlines
Find Deal
mar., ene. 20 - sáb., ene. 24
United Airlines Logo
6:30 am - 11:47 amABE-SEA
8h 17m1 stop
United Airlines Logo
5:11 pm - 11:52 amSEA-ABE
15h 41m2 stops
$409United Airlines
Find Deal
mié., dic. 10 - dom., dic. 14
United Airlines Logo
6:30 am - 3:29 pmABE-SEA
11h 59m2 stops
United Airlines Logo
7:34 pm - 11:52 amSEA-ABE
13h 18m2 stops
$416United Airlines
Find Deal
mié., dic. 10 - dom., dic. 14
United Airlines Logo
11:30 am - 6:14 pmABE-SEA
9h 44m1 stop
United Airlines Logo
10:58 am - 9:05 pmSEA-ABE
7h 07m1 stop
$422United Airlines
Find Deal
mar., ene. 20 - sáb., ene. 24

United Airlines flights from Allentown to Seattle

Our best United Airlines deals on Allentown to Seattle flight tickets
United Airlines
Jan 19
ABE4:57 pmAllentown-Bethlehem
8h 46m
1 stop
SEA10:43 pmSeattle/Tacoma Intl
Jan 22
SEA10:58 amSeattle/Tacoma Intl
7h 07m
1 stop
ABE9:05 pmAllentown-Bethlehem
$317
Find similar
United Airlines
Jan 19
ABE4:57 pmAllentown-Bethlehem
8h 46m
1 stop
SEA10:43 pmSeattle/Tacoma Intl
Jan 22
SEA7:30 pmSeattle/Tacoma Intl
12h 11m
2 stops
ABE10:41 amAllentown-Bethlehem
$322
Find similar
United Airlines
Dec 16
ABE5:22 pmAllentown-Bethlehem
8h 06m
1 stop
SEA10:28 pmSeattle/Tacoma Intl
Jan 13
SEA10:58 amSeattle/Tacoma Intl
7h 07m
1 stop
ABE9:05 pmAllentown-Bethlehem
$377
Find similar

American Airlines flights from Allentown to Seattle

Our best American Airlines deals on Allentown to Seattle flight tickets
American Airlines
Dec 10
ABE1:48 pmAllentown-Bethlehem
9h 49m
1 stop
SEA8:37 pmSeattle/Tacoma Intl
Dec 13
SEA12:31 amSeattle/Tacoma Intl
9h 59m
2 stops
ABE1:30 pmAllentown-Bethlehem
$602
Find similar
American Airlines
Dec 10
ABE1:48 pmAllentown-Bethlehem
12h 50m
2 stops
SEA11:38 pmSeattle/Tacoma Intl
Dec 13
SEA12:31 amSeattle/Tacoma Intl
9h 59m
2 stops
ABE1:30 pmAllentown-Bethlehem
$607
Find similar
American Airlines
Jan 12
ABE1:02 pmAllentown-Bethlehem
10h 43m
1 stop
SEA8:45 pmSeattle/Tacoma Intl
Jan 15
SEA11:12 pmSeattle/Tacoma Intl
10h 20m
2 stops
ABE12:32 pmAllentown-Bethlehem
$617
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated noviembre 26, 2025.
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

Price

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

lun. 1/19

4:57 pm-10:43 pm

1 stop8h 46m

Seattle/Tacoma Intl

jue. 1/22

10:58 am-9:05 pm

1 stop7h 07m

$317

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

lun. 1/19

4:57 pm-10:43 pm

1 stop8h 46m

Seattle/Tacoma Intl

jue. 1/22

7:30 pm-10:41 am

2 stops12h 11m

$322

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

mar. 1/20

5:59 pm-9:17 am

2 stops18h 18m

Seattle/Tacoma Intl

sáb. 1/24

10:59 pm-12:05 pm

1 stop10h 06m

$341

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

mar. 1/20

5:59 pm-9:17 am

2 stops18h 18m

Seattle/Tacoma Intl

sáb. 1/24

10:59 pm-12:05 pm

1 stop10h 06m

$357

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

mar. 12/16

5:22 pm-10:28 pm

1 stop8h 06m

Seattle/Tacoma Intl

mar. 1/13

10:58 am-9:05 pm

1 stop7h 07m

$377

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

mar. 1/20

11:30 am-9:15 pm

2 stops12h 45m

Seattle/Tacoma Intl

sáb. 1/24

5:10 pm-10:41 am

2 stops14h 31m

$382

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

mar. 1/20

11:30 am-12:59 am

2 stops16h 29m

Seattle/Tacoma Intl

sáb. 1/24

5:10 pm-10:41 am

2 stops14h 31m

$398

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

mié. 12/10

6:30 am-11:47 am

1 stop8h 17m

Seattle/Tacoma Intl

dom. 12/14

5:11 pm-11:52 am

2 stops15h 41m

$409

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

mié. 12/10

6:30 am-3:29 pm

2 stops11h 59m

Seattle/Tacoma Intl

dom. 12/14

7:34 pm-11:52 am

2 stops13h 18m

$416

AllentownSeattle

ABE - SEA

ABESEA

Allentown-Bethlehem

mar. 1/20

11:30 am-6:14 pm

1 stop9h 44m

Seattle/Tacoma Intl

sáb. 1/24

10:58 am-9:05 pm

1 stop7h 07m

$422

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Seattle from

How to get the cheapest flight ticket from Allentown to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Seattle?

In general, October is the cheapest month to fly from Allentown to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $294. If you don’t want to visit Seattle in October, then you should wait until February to fly from Allentown, when ticket prices are also cheap, with an average price of $380.

What is the cheapest day to depart on your flight to Seattle?

On average, the least expensive day to fly to Seattle from Allentown is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $474. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from Allentown because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $567.

What is the cheapest time of day to depart on your flight to Seattle?

Flying to Seattle from Allentown in the evening is the least expensive time of day to depart. momondo users have found prices as low as $382 when looking at flights departing in the evening. Flights to Seattle are more costly at noon, with an average ticket price of $573. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

How have Allentown to Seattle flight prices changed over time?

When to book flights from Allentown to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from Allentown to Seattle according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Allentown to Seattle (ABE to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Allentown to Seattle

Fastest flight time

8h 06m

Direct flights

None
The fastest flight from Allentown to Seattle takes 8h 06m
There are no direct flights from Allentown to Seattle. There are no popular flight routes from Allentown to Seattle.
Search flight deals

  • How far is Allentown-Bethlehem to Seattle/Tacoma Intl by plane?

    The straight-line distance from Allentown-Bethlehem to Seattle/Tacoma Intl is 2336.4 mi. 7h 57m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Allentown-Bethlehem Airport to Seattle/Tacoma Intl Airport?

    Prices for flights from Allentown-Bethlehem Airport to Seattle/Tacoma Intl Airport refresh daily.

  • How many operators does momondo search for flights from Allentown-Bethlehem Airport to Seattle/Tacoma Intl Airport?

  • How old do you have to be to fly from Allentown-Bethlehem Airport to Seattle/Tacoma Intl Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Allentown-Bethlehem Airport to Seattle/Tacoma Intl Airport.

  • What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

    The travel and health documents you'll need for your trip to Seattle/Tacoma Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Allentown to Seattle?

Best airlines flying from Allentown to Seattle

Compare and see reviews for airlines that fly from Allentown to Seattle with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $289Free CancellationRating
7.2
11,038 reviews
Search American Airlines flights
United AirlinesPriceFrom $293Free CancellationRating
7.4
9,050 reviews
Search United Airlines flights

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
Leavenworth
SeaTac
Ocean Shores
Renton
Olympia
Lynnwood
Kent
Marysville
Puyallup
Redmond
Tukwila
Cle Elum
Lakewood
Federal Way
Fife
Centralia
Kirkland
Westport
Shoreline

Why use momondo?

Why should I use momondo to find a flight deal from Allentown to Seattle?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Allentown to Seattle. momondo saves you time and could save you money on your trip.

Can I find flights from Allentown to Seattle with flexible booking policies on momondo?

All flight searches from Allentown to Seattle on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Allentown to Seattle?

Once you have performed a search for Allentown to Seattle flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Allentown to Seattle right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Seattle, momondo offers a useful price alert feature which will track prices for flights to Seattle from Allentown and alert you when they change.

An easier way to manage your Seattle trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
vie. 12/26
vie. 1/2
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States