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Cheap Flights from Philadelphia to Seattle, WA, United States - PHL to SEA Last modified: May 29, 2016 1:36 AM

Popular flights from Philadelphia to Seattle Last modified: May 29, 2016 1:36 AM

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
Sep 17, 2016 Oct 1, 2016 $305
American Airlines
Departure Date Return Date Lowest Price
Jul 5, 2016 Jul 11, 2016 $377
Jul 5, 2016 Jul 12, 2016 $377
Jul 6, 2016 Jul 13, 2016 $377
Jul 7, 2016 Jul 11, 2016 $377
Jul 7, 2016 Jul 12, 2016 $377
Frontier Airlines
Departure Date Return Date Lowest Price
Aug 23, 2016 Aug 30, 2016 $262
Sep 14, 2016 Sep 21, 2016 $262
JetBlue Airways
Departure Date Return Date Lowest Price
Sep 6, 2016 Sep 26, 2016 $423
Sep 7, 2016 Sep 12, 2016 $423
Sep 14, 2016 Sep 25, 2016 $423
Sep 14, 2016 Sep 21, 2016 $423
Sep 19, 2016 Oct 4, 2016 $423
United Airlines
Departure Date Return Date Lowest Price
Sep 21, 2016 Sep 26, 2016 $344

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

We have collected flight cost data from across the web for travel from Philadelphia to Seattle, and have found the average flight price for this trip to be $333.

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

Airlines can adjust prices for plane tickets from Philadelphia to Seattle 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 Philadelphia to Seattle

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

Non Stop versus 1-Stop
Advanced PurchaseNon StopOne Stop
< 7 days $615 $644
7-14 days $574 $504
14-21 days $543 $394
21-30 days $460 $414
30-60 days $377 $381
60-90 days $377 $262
90+ days $305 $262

Cheapest Day To Fly from Philadelphia to Seattle

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

Monday Tuesday Wednesday Thursday Friday Saturday Sunday
$377 $262 $305 $345 $345 $348 $348

Lowest Fares Chart By Month from Philadelphia to Seattle

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

Month Origin Destination Carrier Depart Date Return Date Stops Price
May Philadelphia Seattle United 5/30/16 6/2/16 1 $684
June Philadelphia Seattle United 6/18/16 6/21/16 1 $394
July Philadelphia Seattle American 7/5/16 7/11/16 0 $377
August Philadelphia Seattle Frontier 8/23/16 8/30/16 1 $262
September Philadelphia Seattle Frontier 9/14/16 9/21/16 1 $262
October Philadelphia Seattle Alaska 10/1/16 10/8/16 0 $305
November Philadelphia Seattle Alaska 11/5/16 11/12/16 0 $305
December Philadelphia Seattle American 12/8/16 12/15/16 0 $377

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

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 Philadelphia to Seattle.

Next 30 Days

SunMonTueWedThuFriSat
29 30 31 1 2 3 4
$708
5 6 7 8 9 10 11
$708 $649
12 13 14 15 16 17 18
$649 $543
19 20 21 22 23 24 25
$543 $543
26 27 28 29 30 1 2
$543 $513
3 4 5 6 7 8 9
$513
TIPSave $112 by flying into Portland instead of Seattle from Philadelphia

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

Your Philadelphia to Seattle 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 Philadelphia to Seattle is $425.

The average price for non-stop flights from Philadelphia to Seattle is $437.

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

Nonstop Flight Details from Philadelphia to Seattle
CarrierMonTueWedThuFriSatSunEarliest FlightLatest Flight
American 3 3 3 3 3 3 3 07:35 20:40
Alaska 1 1 1 1 1 1 1 17:50 17:50

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

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 Philadelphia to Seattle. 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 Philadelphia to Seattle is $199.

The average price for round trip flights from Philadelphia to Seattle is $425.

Philadelphia to Seattle Flight Questions

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

Question: How long is a direct flight from Philadelphia to Seattle?
Answer: The average Philadelphia to Seattle flight time is 5 hours and 59 minutes.
Question: How many miles are there between Philadelphia and Seattle?
Answer: The distance from Philadelphia to Seattle is 2371 miles.
Question: How common are direct flights from Philadelphia to Seattle?
Answer: There are 28 direct flights from Philadelphia to Seattle.
Question: What is the most popular airline for non-stop flights from Philadelphia to Seattle?
Answer: American Airlines provides 75% of the non-stop flights between Philadelphia and Seattle.
Question: What are the most popular connecting cities when flying from Philadelphia to Seattle?
Answer: Denver, CO

Airlines Flying from Philadelphia to Seattle (PHL to SEA) Number of flights searched: 238Last modified: May 29, 2016 1:36 AM

Below are the different airlines that fly from Philadelphia to Seattle 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 Philadelphia to Seattle.

Philadelphia to Seattle
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
JetBlue BOS X X X X X X X
Delta SLC X X X X X X X
United ORD X X X X X X X
Southwest ATL X X X X X X X

Airports for Your Route

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

Cheap Domestic Flights to Seattle - SEA

FlightsAirlineLowest Price
New York to Seattle American, Alaska, JetBlue, Sun Country, United, Virgin America $327
Washington to Seattle American, Alaska, JetBlue, Frontier, United, Virgin America $244
Baltimore to Seattle American, Alaska, JetBlue, United $368
Newark to Seattle American, Alaska, JetBlue, United, Virgin America $370
Hartford to Seattle American, Alaska, United $396
Richmond to Seattle American, Alaska, JetBlue, United $358
Harrisburg to Seattle American, Alaska, United $383
Westchester County to Seattle American, Alaska, United $445
Wilkes - Barre to Seattle American, United $298
Long Island MacArthur to Seattle American, United $636
Allentown - Bethlehem - Easton to Seattle American, United $286
Newburgh to SeattleCheck Dates
Ithaca to Seattle American, United $478
Binghamton to Seattle American, United $372
State College to Seattle American, Alaska, United $400
Elmira - Corning to Seattle American $476
Salisbury - Ocean City to Seattle American $533
Atlantic City to SeattleCheck Dates
New Haven to Seattle American $503
New York to Los Angeles American, Alaska, JetBlue, Spirit, Sun Country, United, Virgin America $292
New York to Chicago American, Alaska, JetBlue, Spirit, United $81
New York to San Francisco American, Alaska, JetBlue, Sun Country, United, Virgin America $338
New York to Las Vegas American, Alaska, JetBlue, Spirit, United, Virgin America $241
New York to Portland American, Alaska, JetBlue, Sun Country, United, Virgin America $273
New York to Atlanta American, Alaska, Frontier, Spirit, United $148
New York to Dallas - Ft Worth American, Alaska, JetBlue, Spirit, United, Virgin America $117
Washington to Portland American, Alaska, JetBlue, Frontier, Sun Country, United, Virgin America $244
New York to Denver American, Alaska, JetBlue, Frontier, Spirit, Sun Country, United $221

Cheap International Flights to Seattle - SEA

FlightsAirlineLowest Price
New York to Vancouver American, Air Canada, Alaska, JetBlue, Cathay, Spirit, Porter, Sun Country, United, Virgin America, WestJet $356
New York to London American, Air Berlin, Air France, Finnair, Alitalia, JetBlue, British Airways, airBaltic, Condor, OpenSkies, Aer Lingus, Iberia, Meridiana, KLM, Kuwait, Luxair, Lufthansa, LOT, Thomas Cook, Czech, Austrian, TAROM, SATA, XL Airways, SAS, Brussels, Tap Portugal, United, Air Europa, Virgin Atlantic, City Jet $695
Cheap Flights from Philadelphia to Seattle, WA, United States, from $262 Round trip from PHL to SEA