$67 Find Cheap Flights from Seattle to Pennsylvania

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Pennsylvania departing on 6/13. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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KAYAK searches hundreds of travel sites at once for deals on flights to Pennsylvania

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Pennsylvania.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Pennsylvania.
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Best Pennsylvania Flight Deals from Seattle

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Philadelphia
Philadelphia1 stop$170
Pittsburgh
Pittsburghnonstop$237
Harrisburg
Harrisburg1 stop$287
Allentown
Allentown2 stops$442
Scranton
Scranton1 stop$402
State College
State College2 stops$534
Erie
Erie1 stop$415
Latrobe
Latrobe2 stops$637
New York
New Yorknonstop$67
Philadelphia
Philadelphia1 stop$170
Pittsburgh
Pittsburghnonstop$237
Harrisburg
Harrisburg1 stop$287
Allentown
Allentown2 stops$442
Scranton
Scranton1 stop$402
State College
State College2 stops$534
Erie
Erie1 stop$415
Latrobe
Latrobe2 stops$637
New York
New Yorknonstop$67

Cheap Flight Deals from Seattle to Pennsylvania (SEA-USPA)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to Pennsylvania that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from Seattle to Pennsylvania

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Seattle to Pennsylvania.
Discover the best prices for you by selecting your travel dates on KAYAK.
 Logo
10:41 pm - 7:02 amSEA-JFK
5h 21mnonstop
 Logo
4:45 pm - 8:10 pmJFK-SEA
6h 25mnonstop
Fri, Jun 13 - Fri, Jun 20
 Logo
10:41 pm - 7:02 amSEA-JFK
5h 21mnonstop
 Logo
4:00 pm - 11:44 pmJFK-SEA
10h 44m1 stop
Fri, Jun 13 - Fri, Jun 20
Alaska Airlines Logo
5:59 pm - 6:29 amSEA-JFK
9h 30m1 stop
Alaska Airlines Logo
4:00 pm - 11:44 pmJFK-SEA
10h 44m1 stop
$105Alaska Airlines
Find Deal
Fri, Jun 13 - Fri, Jun 20
Alaska Airlines Logo
6:35 am - 2:59 pmSEA-EWR
5h 24mnonstop
Alaska Airlines Logo
7:46 am - 4:53 pmEWR-SEA
12h 07m1 stop
$208Alaska Airlines
Find Deal
Tue, May 13 - Wed, May 28
United Airlines Logo
11:35 pm - 7:48 amSEA-EWR
5h 13mnonstop
United Airlines Logo
3:00 pm - 8:18 pmEWR-SEA
8h 18m1 stop
$217United Airlines
Find Deal
Mon, May 12 - Wed, May 14
United Airlines Logo
11:24 pm - 7:35 amSEA-EWR
5h 11mnonstop
United Airlines Logo
6:00 am - 11:35 amEWR-SEA
8h 35m1 stop
$223United Airlines
Find Deal
Sat, May 24 - Tue, May 27
Delta Logo
11:50 pm - 10:09 amSEA-PIT
7h 19m1 stop
Delta Logo
6:10 pm - 11:49 pmPIT-SEA
8h 39m1 stop
$247Delta
Find Deal
Mon, May 26 - Thu, Jun 5
American Airlines Logo
12:05 am - 11:00 amSEA-DCA
7h 55m1 stop
American Airlines Logo
2:37 pm - 8:03 pmDCA-SEA
8h 26m1 stop
$257American Airlines
Find Deal
Fri, Jun 6 - Tue, Jun 10
American Airlines Logo
12:05 am - 11:00 amSEA-DCA
7h 55m1 stop
American Airlines Logo
2:37 pm - 8:03 pmDCA-SEA
8h 26m1 stop
$259American Airlines
Find Deal
Fri, Jun 6 - Tue, Jun 10
Delta Logo
11:50 pm - 9:45 amSEA-PIT
6h 55m1 stop
Delta Logo
4:23 pm - 8:33 pmPIT-SEA
7h 10m1 stop
$278Delta
Find Deal
Thu, Jul 24 - Sat, Jul 26
Useful Info

KAYAK's insights & trends for Seattle to Pennsylvania flights

Get data-powered insights and trends into flights from Seattle to Pennsylvania to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest Seattle to Pennsylvania flight route?

The cheapest price for flight routes found by users searching on KAYAK in the last 2 weeks for round-trip flights from Seattle to Pennsylvania.

The cheapest ticket to Pennsylvania from Seattle found in the last 72 hours was to Pittsburgh, at $284 round-trip. The most popular route is from Seattle (SEA) to Philadelphia (PHL), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $327.

Can I save money by flying with a layover from Seattle to Pennsylvania?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $368 on average.

What is the cheapest month to fly from Seattle to Pennsylvania?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seattle to Pennsylvania, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Seattle to Pennsylvania is March, when tickets cost $387 (return) on average. On the other hand, the most expensive months are December and February, when the average cost of round-trip tickets is $586 and $533 respectively.

What’s the cheapest day of the week to fly from Seattle to Pennsylvania?

The average price of all round-trip flights from Seattle to Pennsylvania clicked on KAYAK for each day over the last 12 months.

When flying from Seattle to Pennsylvania, you should consider leaving on a Tuesday and avoid Sundays if you are looking for the best rates. For your return to Seattle, you’ll find the best rates on Tuesdays and the most expensive ones on Sundays.

How far in advance should I book a flight from Seattle to Pennsylvania?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Seattle to Pennsylvania, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Seattle to Pennsylvania, you should book around 4 weeks before departure. For the absolute cheapest price, our data suggests you should book 13 weeks before departure.


Good to know

Low seasonJanuary
High seasonJuly
Cheapest flight$67
Best time to beat the crowds with an average 6% drop in price.
Most popular time to fly with an average 10% increase in price.
Flight from Seattle to New York John F Kennedy Airport

Flights from Seattle to Pennsylvania: the best tips from KAYAK users

Insights shared by verified travelers who flew the route from Seattle to Pennsylvania 
Verified travelerFlew with Alaska AirlinesSEA-PHLApr 2025
Direct flight is worth the cost. Use the app. Fast and smooth.
Verified travelerFlew with Alaska AirlinesSEA-PITJun 2024
The SeaTac airport is huge and busy, get there early.
ElaineFlew with Alaska AirlinesSEA-PHLMay 2024
If you have any metal in your body (e.g., spinal fusion screws) make sure you get in the line for the TSA security screening booth that makes you stand on the yellow marks with your arms over your head. I wish I had known this before I wasted time in the alternate line with the walk-through detector.

FAQs - booking Pennsylvania flights

  • How does KAYAK find such low prices on flights from Seattle to Pennsylvania?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Seattle to Pennsylvania.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Seattle to Pennsylvania?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Seattle to Pennsylvania is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Seattle to Pennsylvania?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Seattle to Pennsylvania with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Seattle to Pennsylvania?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Seattle to Pennsylvania up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Pennsylvania?

    The cheapest time of day to fly to Pennsylvania is generally in the afternoon, when round-trip flights cost $344 on average. Morning departures are around 19% cheaper than evening flights, on average. The most expensive time of day to fly to Pennsylvania is generally in the evening, which is peak travel time and where the average cost of a ticket is $726.

Top tips for finding cheap flights to Pennsylvania

  • Looking for a cheap flight? 25% of our users found tickets from Seattle to the following destinations at these prices or less: New York $188 one-way - $366 round-trip

Top 5 airlines serving from Seattle to Pennsylvania

 
See real verified KAYAK customer reviews for airlines flying from Seattle to Pennsylvania. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Seattle to Pennsylvania? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Alaska AirlinesOverall score based on 9968 reviews
7.9Comfort
8.2Boarding
7.1Food
8.5Crew
7.1Entertainment
Airline reviews

I made a mistake. Read what I wrote in the flight from Dulles to SEA. The negative experience was from SEA to BOI. Total garbage. Wont do it again.

2.0 MediocreAnonymous, Apr 2025SEA - BOI
Read more Alaska Airlines reviews

I made a mistake. Read what I wrote in the flight from Dulles to SEA. The negative experience was from SEA to BOI. Total garbage. Wont do it again.

Need to get on train for second flight it’s much nicer when all the gates are together for obvious reasons

Cramped, crowded aircraft. Poorly organized boarding. Tasteless crackers to eat. 40 minutes late. A standard US air travel experience.

Would not mind having movie options an available like Delta, but is not necessary. Did not have food, so cannot appropriately rate that section.

Three hour flight so snacks and basic drinks unless you pre buy as usual. Didn’t do my emtertainment as was tired after 23 hours of travel. You have to use your own device on US flights if travelers aren’t aware so if you only use your cell phone that can be small. Crew are great.

Awful. We got the last seats and they don't recline. We've been on this horrible journey since 6am and won't get to our destination almost a full day later. Oh and no food, either. Never again.

An uneventful flight is a good experience although one of the pilots gauges wasn’t working right so we had a half hour delay—no one can foresee that.

Plane was delayed and got me in past bedtime. But more importantly, my tsa precheck number wasn’t on my ticket so had to deal with the general line. Oh well, guess the delay helped that situation.

It was as good as flying can be, which is still very uncomfortable. Clean new aircraft, great crew.

Everything was good. The flight attendants were great. I was disappointed that there wasn’t any screens on the back of the seats to watch movies, tv, etc. I only had my phone to watch movies on.

Delta is my preferred airline. I've traveled with them for years. On time in most cases, good communication, easy to use app. Most planes are pretty nice. I was on a CRJ 700/900 however, which was pretty badly aged inside and needed a refresh. No infotainment, unreliable wifi, best to download before boarding or bring a book. Food choices are really just snacks on this flight, nice variety but about what you'd expect. Great staff and prompt in departure and early arrival too. Overall quite satisfied.

Crew was friendly Love the entertainment in the seat head rest.

Delta flight was on time, seats were comfortable, and crew was nice.

This had nothing to do with Delta… The flights were on time and flawless. The service was excellent. We purchased seats in (aisle/middle) comfort plus since this was a cross country flight. Unfortunately, the woman seated at the window was 300+ pounds and, as might be expected, covered up about a third of the middle seat also. there was absolutely nothing that Delta could have done about that… I just don’t know what the answer should be. If you purchase a seat, you should should be able to use the entire seat and not just the portion that someone else is not sitting/oozing in. Disappointing…there should be something that could be done….I'm just not sure what solution could be.

Delayed take-off. Very small plane so very scary with lots of bumps during the flight. Would never fly Delta on short flights in small 80 seaters plane again! Felt relieved when landed.

The worst part was I was NOT allowed in the lounge even though I was holding a first class ticket and have a premium American Express card. I have flown Business or First Class with many airlines. Delta is the ONLY one who does not extend this courtesy to anyone except people who hold the very expensive American Express card. As a result, I won’t fly Delta if I have any other choice.

A little bumpy ride . No food was being provided due the the turbulence. That was ok it was a short flight to my standards.

Simply outstanding. Their new lounge for Delta One customers is a cut above the rest.

The Dekta Rep that checked us in was great. She's very personable, pleasant, and can tell she enjoys her job.

The plane was old with small storage areas that had problems closing/latching and not enough storage for everyone, and worn, damaged seats. Service was great but feel a little unsafe on such well used planes.

A bit rush for transit. Food and entertainment are not available

Multiple delays and not straight answer from the United team

Stewardess spilled orange juice on my clothes/seat no help no apology just threw napkins at me to clean the mess up. Not Happy.

Smooth flight. Boarding was chaotic. Could not hear the gate agent over the intercom. People were lined up in the wrong lines. Groups one and two were told to board through line one and group 3 through line 2. All very confusing. Once in the air, the flight was smooth. There was no entertainment option on this aircraft, even though it was a larger aircraft.

The plane pushed back from the gate on time. However, it stopped on the ramp, and we waited for over 20 minutes before the aircraft pulled back to the gate. Apparently, something of importance had to be removed from the aircraft by the gate agent. I found this to be odd. The delay was not significant, but I felt that whatever was on the aircraft that had to be taken off, should’ve been done before we pushed back from the gate.

Electric plugs didn't work. Entertainment system wasn't working

The design of the light switch on the arm rest is ridiculous.

Smooth boarding process. Early departure, smooth flight, early arrival. The entertainment package has very good recent movie options. The flight crew were friendly and professional.

leg space better than expected. two washrooms for one plane isn't enough.

The gate attendant let me walk right by her with a bag too big for the overhead compartment

Wonderful as usual except for other guests that were unruly and not kept in check by the Crew.

This was an overnight flight. There was no meal service in first class, just a simple snack basket was offered along with beverages. There should have been some type of continental breakfast prior to arrival in PHL. As an Executive Platinum American Airlines Advantage member, I received no name recognition from the first class flight attendant. When disembarking at PHL, the flight attendants were more interested in their cell phones than saying "thank you" to the passengers as they disembarked.

Everything was great except it became so hot on the plane I couldn’t sleep on my red eye flight. It didn’t really cool down till we started descending.

the pilot that landed this flight in Philadelphia did an amazing job, the weather was absolutely terrible and we landed safely.

The only thing is if Wi-Fi is available after you land and taxi to the gate. It takes forever to get to the gate, and having the Wi-Fi continue would be great to bide the time at least 5 minutes before you arrive at the entrance. That is my only comment; otherwise, everything was good.

The flight was just perfect! We left a few minutes early, had a smooth flight and fortunately had landed before the terrible accident that took off from North Philadelphia airport shortly thereafter.

Staff at the gate were incredibly rude, hostile and threatening. Never fly American Airlines.

Timely boarding process, made up for lost time even after a lengthy wait for de-icing

My seat was wonky...hard and not much padding. I sat next to the Jumpseat for the flight attendant. Thoroughly enjoyed not have a third seat in that row! Flight attendants were amazing. I couldn't answer the "food quality" question as there is no food served on my short flight. I commend the pilot as I know it was super gusty when we landed. Thanks

I think I paid for an extra legroom seat and to be honest, there was not a lot of space available for my not very long legs. The flight was totally full and the staff did everything possible to meet the needs of all passengers. My only concern was for the size and spacing of my seat.

The reps working at the airport counter were dumber than a second coat of paint.

My costume jewelry was stolen out of my bag. Got to airport and my bag weighed 45 pounds- 5 pounds over cost me $100 Long lines in tier one. No entertainment No WiFi no free drinks or snacks

Not very good. Paid in excess of $400 for assigned seating for my family and that was not provided. I want that money back.

The seats were hard molded plastic covered in plastic vinyl. And the scam to charge people extra to sit together. Don’t they know we can just ask someone to trade seats. And watching the staff separate young children from parents… super classy. We had to guilt them into offering up our seats. This companies policies suck. Don’t give them your money.

The seats were awful, hard plastic covered in sheet vinyl. The airline tries to scam you into paying extra to get seat together when the flight wasn’t full. They were going to separate a family with young children but my wife who had a row to herself gave up her seat so the young mom could be with her young boys. I’m never giving this airline my money again.

It was a short flight so no food or entertainment….

Seats are uncomfortable but price is good. Guess I can put up with misery for four hours.

I’ve never traveled on Frontier before. If you want basic, no frills, friendly service at great prices then give them a fly!

Cancelled and declined to find alternatives Earlier flight is 2 days later Sent the cancellation notification very late, wish I knew earlier would have stayed to watch the Miami open final game Very disappointing service

The worst flight of my life. Never will I fly frontier again

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