Cheap flights from Allentown to Seattle from $338
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 10/24. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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
AllentownSeattle
ABE Allentown-Bethlehem - SEA Seattle/Tacoma Intl
ABESEA
Allentown-Bethlehem
Fri 11/13
6:00 pm-11:57 pm
1 stop8h 57m
Seattle/Tacoma Intl
Wed 11/18
11:40 pm-12:04 pm
1 stop9h 24m
AllentownSeattle
ABE Allentown-Bethlehem - SEA Seattle/Tacoma Intl
ABESEA
Allentown-Bethlehem
Fri 11/13
6:00 pm-11:57 pm
1 stop8h 57m
Seattle/Tacoma Intl
Wed 11/18
10:40 pm-12:04 pm
1 stop10h 24m
AllentownSeattle
ABE Allentown-Bethlehem - SEA Seattle/Tacoma Intl
ABESEA
Allentown-Bethlehem
Tue 1/5
6:00 am-11:58 am
1 stop8h 58m
Seattle/Tacoma Intl
Tue 1/12
5:44 pm-9:35 am
2 stops12h 51m
AllentownSeattle
ABE Allentown-Bethlehem - SEA Seattle/Tacoma Intl
ABESEA
Allentown-Bethlehem
Tue 1/5
7:10 am-1:11 pm
1 stop9h 01m
Seattle/Tacoma Intl
Tue 1/12
10:17 am-10:58 pm
1 stop9h 41m
AllentownSeattle
ABE Allentown-Bethlehem - SEA Seattle/Tacoma Intl
ABESEA
Allentown-Bethlehem
Thu 11/5
6:15 pm-12:35 am
1 stop9h 20m
Seattle/Tacoma Intl
Thu 12/3
11:16 am-12:21 am
1 stop10h 05m
AllentownSeattle
ABE Allentown-Bethlehem - SEA Seattle/Tacoma Intl
ABESEA
Allentown-Bethlehem
Fri 11/13
5:14 pm-11:10 pm
1 stop8h 56m
Seattle/Tacoma Intl
Wed 11/18
12:38 pm-11:24 pm
1 stop7h 46m
AllentownSeattle
ABE Allentown-Bethlehem - SEA Seattle/Tacoma Intl
ABESEA
Allentown-Bethlehem
Sun 11/8
6:15 pm-12:35 am
1 stop9h 20m
Seattle/Tacoma Intl
Tue 11/17
6:14 am-5:41 pm
1 stop8h 27m
AllentownSeattle
ABE Allentown-Bethlehem - SEA Seattle/Tacoma Intl
ABESEA
Allentown-Bethlehem
Sat 3/6
5:40 pm-12:09 am
1 stop9h 29m
Seattle/Tacoma Intl
Tue 3/9
6:00 am-5:12 pm
1 stop8h 12m
AllentownSeattle
ABE Allentown-Bethlehem - SEA Seattle/Tacoma Intl
ABESEA
Allentown-Bethlehem
Thu 11/5
6:15 pm-12:35 am
1 stop9h 20m
Seattle/Tacoma Intl
Thu 12/3
11:16 am-12:21 am
1 stop10h 05m
AllentownSeattle
ABE Allentown-Bethlehem - SEA Seattle/Tacoma Intl
ABESEA
Allentown-Bethlehem
Mon 11/2
6:15 pm-12:35 am
1 stop9h 20m
Seattle/Tacoma Intl
Mon 11/9
6:14 am-5:41 pm
1 stop8h 27m
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, March 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 $276. If you don’t want to visit Seattle in March, then you should wait until April to fly from Allentown, when ticket prices are also cheap, with an average price of $328.
How have Allentown to Seattle flight prices changed over time?
What is the cheapest airline that flies from Allentown-Bethlehem to Seattle/Tacoma Intl?
Delta and American Airlines are the most popular carriers operating from Allentown-Bethlehem to Seattle/Tacoma Intl
What airlines fly to Seattle?
Alaska Airlines, United Airlines and American Airlines are the top three most popular airlines that fly to Seattle from Allentown according to our data. Alaska Airlines is the first choice among our users, with 40% of people opting to fly with this airline when traveling to Seattle. Keep in mind that there are 7 different airlines that fly to Seattle on a routine basis, so you have a few additional options to choose from.
When to book flights from Allentown to Seattle
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
Frequently asked questions about flying from Allentown to Seattle
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. 8h 25m 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?
As of October 2026, there is 1 operator available to choose from 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?
Based on momondo bookings for flights between Allentown and Seattle, the leading airline is American Airlines, making up 100% of the total bookings.
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 | ||
|---|---|---|---|---|---|
| PriceFrom $276 | Free Cancellation | Rating 7.0 12,152 reviews |
Traveling to a place near Seattle?
Book flights to Seattle if you plan to visit one of these locationsWhy 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.