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Cheap Flights from Seattle to Philadelphia, PA, United States - SEA to PHL

Popular flights from Seattle to Philadelphia

We’ve got the inside scoop on finding the best time to fly for the best price. Not sure when to travel for your next vacation? Find details below on when-to-fly and when-to-buy.

Alaska Airlines
Departure Date Return Date Lowest Price
May 31, 2016 Jun 7, 2016 $379
Jun 2, 2016 Jun 8, 2016 $379
Jun 2, 2016 Jun 6, 2016 $379
Jun 3, 2016 Jun 18, 2016 $379
Jun 3, 2016 Jun 7, 2016 $379
American Airlines
Departure Date Return Date Lowest Price
Jun 15, 2016 Jun 19, 2016 $367
Frontier Airlines
Departure Date Return Date Lowest Price
May 29, 2016 Jun 1, 2016 $488
May 29, 2016 May 31, 2016 $488
JetBlue Airways
Departure Date Return Date Lowest Price
Aug 24, 2016 Sep 7, 2016 $444
United Airlines
Departure Date Return Date Lowest Price
May 28, 2016 Jun 3, 2016 $377
Jun 1, 2016 Jun 6, 2016 $377
Jun 1, 2016 Jun 8, 2016 $377
Jun 2, 2016 Jun 8, 2016 $377
Jun 2, 2016 Jun 9, 2016 $377

How Much Does it Cost to Fly from Seattle to Philadelphia (SEA to PHL)?

We have collected flight cost data from across the web for travel from Seattle to Philadelphia, and have found the average flight price for this trip to be $369.

When Can I Buy the Cheapest Flight from Seattle to Philadelphia (SEA to PHL)?

Airlines can adjust prices for plane tickets from Seattle to Philadelphia based on the day and time that you decide to book your flight. We have collected data from all airlines, and have discovered that the best days to book flights are Tuesdays, Wednesdays, and Saturdays. Read our article to find more information about the best time to buy airline tickets.

How far in advance should you book flights from Seattle to Philadelphia

The chart below shows up-to-date information regarding how far in advance a flight from Seattle to Philadelphia should be booked.

Non Stop versus 1-Stop
Advanced PurchaseNon StopOne Stop
< 7 days $704 $480
7-14 days $590 $414
14-21 days $370 $414
21-30 days $370 $374
30-60 days $367 $371
60-90 days $370 $374
90+ days $369 $348

Cheapest Day To Fly from Seattle to Philadelphia

The chart below shows up-to-date information regarding the cheapest days to fly from Seattle to Philadelphia.

Monday Tuesday Wednesday Thursday Friday Saturday Sunday
$370 $370 $367 $370 $370 $370 $370

Lowest Fares Chart By Month from Seattle to Philadelphia

The chart below shows the lowest fare by month when flying from Seattle to Philadelphia.

Month Origin Destination Carrier Depart Date Return Date Stops Price
May Seattle Philadelphia American 5/23/16 6/1/16 0 $370
June Seattle Philadelphia American 6/15/16 6/19/16 0 $367
July Seattle Philadelphia American 7/4/16 7/12/16 0 $370
August Seattle Philadelphia American 8/3/16 8/11/16 0 $370
September Seattle Philadelphia Frontier 9/9/16 9/17/16 1 $348
October Seattle Philadelphia Frontier 10/22/16 10/24/16 1 $348
November Seattle Philadelphia Alaska 11/10/16 11/15/16 0 $371
December Seattle Philadelphia American 12/19/16 12/29/16 1 $430

Cheapest Weekend Non-Stop Flights for the Next 30 Days from Seattle to Philadelphia

If you're ready to take a trip in the next 30 days and want to fly on the weekend, you might be wondering which weekend is the cheapest to fly. The chart below shows up-to-date data regarding weekend flight prices from Seattle to Philadelphia.

Next 30 Days

SunMonTueWedThuFriSat
1 2 3 4 5 6 7
$704
8 9 10 11 12 13 14
$704 $647
15 16 17 18 19 20 21
$647 $507
22 23 24 25 26 27 28
$507 $453
29 30 31 1 2 3 4
$453 $371
5 6 7 8 9 10 11
$371

TIPSave $171 by flying into Newark instead of Philadelphia from Seattle

Non-Stop vs Connecting Flights from Seattle to Philadelphia (SEA to PHL)

Your Seattle to Philadelphia flight can be significantly cheaper by choosing a multi-stop airline ticket. Although these connecting flights sacrifice some convenience, on average, travelers save 20%-60% when they choose to fly multi-stop versus a direct flight.

The average price for connecting flights from Seattle to Philadelphia is $437.

The average price for non-stop flights from Seattle to Philadelphia is $408.

The chart below shows up to date information regarding non-stop flights from Seattle to Philadelphia.

Nonstop Flight Details from Seattle to Philadelphia
CarrierMonTueWedThuFriSatSunEarliest FlightLatest Flight
American 4 3 3 3 3 3 4 00:40 22:05
Alaska 1 1 1 1 1 1 1 08:30 08:30

Round Trip vs One Way Flights from Seattle to Philadelphia (SEA to PHL)

We have found that there is often no price difference between buying a round trip flight versus a one way flight. Increased flexibility is the main benefit when it comes to buying a one way flight from Seattle to Philadelphia. However, booking a round trip flight can be a simpler process. You can compare round trip and one way flights by using our flight comparison.

The average price for one way flights from Seattle to Philadelphia is $201.

The average price for round trip flights from Seattle to Philadelphia is $436.

Seattle to Philadelphia Flight Questions

Below are some common questions that asked about this flight route:

Question: How long is a direct flight from Seattle to Philadelphia?
Answer: The average Seattle to Philadelphia flight time is 5 hours and 11 minutes.
Question: How many miles are there between Seattle and Philadelphia?
Answer: The distance from Seattle to Philadelphia is 2371 miles.
Question: How common are direct flights from Seattle to Philadelphia?
Answer: There are 25 direct flights from Seattle to Philadelphia.
Question: What is the most popular airline for non-stop flights from Seattle to Philadelphia?
Answer: American Airlines provides 72% of the non-stop flights between Seattle and Philadelphia.
Question: What are the most popular connecting cities when flying from Seattle to Philadelphia?
Answer: Chicago, IL

Airlines Flying from Seattle to Philadelphia (SEA to PHL)

Below are the different airlines that fly from Seattle to Philadelphia with the average price of their plane tickets. Just remember that different airlines offer different levels of comfort and service, so consider convenience when choosing your airline.

Below is the full flight schedule summary of the next 30 days for flights from Seattle to Philadelphia.

Seattle to Philadelphia
Airline Connections Mon Tue Wed Thu Fri Sat Sun
American - X X X X X X X
American ORD X X X X X X X
Alaska - X X X X X X X
Delta ATL X X X X X X X
Frontier ORD X X X
United ORD X X X X X X X
Southwest MDW X X X X X X X

Airports for Your Route

These pages contain information about the major airports in Seattle and Philadelphia, so you can feel comfortable knowing how to get around whether you are about to take off or you just landed.

Cheap Domestic Flights from Seattle - SEA

FlightsAirlineLowest Price
Seattle to New York American, Alaska, JetBlue, Frontier, Hawaiian, Sun Country, United, Virgin America $303
Seattle to Newark American, Alaska, JetBlue, United, Virgin America $303
Seattle to Washington American, Alaska, JetBlue, Frontier, Sun Country, United, Virgin America $286
Seattle to Baltimore American, Alaska, JetBlue, United $304
Seattle to Chicago American, Alaska, JetBlue, Frontier, Spirit, United, Virgin America $196
Seattle to Atlanta American, Alaska, Frontier, Spirit, United $368
Seattle to Boston American, Alaska, JetBlue, Sun Country, United, Virgin America $275
Seattle to Dallas - Ft Worth American, Alaska, Frontier, Spirit, Sun Country, United, Virgin America $224
Seattle to Allentown - Bethlehem - Easton American, Alaska, United $374
Seattle to Atlantic CityCheck Dates

Cheap Domestic Flights to Philadelphia - PHL

FlightsAirlineLowest Price
Portland to Philadelphia American, Alaska, JetBlue, Frontier, United $305
Bellingham to Philadelphia American, Alaska $511
Pasco to Philadelphia American, Alaska, United $478
Wenatchee to Philadelphia American, Alaska $1,137
Yakima to Philadelphia American, Alaska $629
Portland to New York American, Alaska, JetBlue, Frontier, Spirit, Sun Country, United, Virgin America $282
Portland to Washington American, Alaska, JetBlue, Frontier, Sun Country, United, Virgin America $261
Portland to Newark American, Alaska, United, Virgin America $361
Bellingham to New York American, Alaska $415
Portland to Baltimore American, Alaska, JetBlue, United $293
Portland to Chicago American, Alaska, JetBlue, Frontier, Spirit, United, Virgin America $97
Portland to Atlanta American, Alaska, Frontier, United $290

Cheap International Flights to Philadelphia - PHL

FlightsAirlineLowest Price
Vancouver to Philadelphia American, Air Canada, Alaska, Spirit, United, WestJet, Great Lakes $292
Victoria to Philadelphia American, Air Canada, Alaska, United, WestJet $451
Nanaimo to Philadelphia American, Air Canada, Alaska, United, WestJet $621
Vancouver to New York Pacific Coastal, American, Air Canada, Alaska, JetBlue, Cathay, Spirit, Sun Country, United, Virgin America, WestJet, Great Lakes $315
Vancouver to Newark Pacific Coastal, American, Air Canada, Alaska, United, Virgin America, Sunwing, WestJet, Great Lakes $333
Victoria to New York Pacific Coastal, American, Air Canada, Alaska, JetBlue, United, WestJet $364
Vancouver to Baltimore American, Air Canada, Alaska, Spirit, United, WestJet $335
Vancouver to Washington Pacific Coastal, American, Air Canada, Alaska, Frontier, United, Virgin America, WestJet $334
Cheap Flights from Seattle to Philadelphia, PA, United States, from $367 Round trip from SEA to PHL