Cheap Flights from Philadelphia, PA to Seattle, WA from $101

On Cheapflightsplus.com you will find 214 connecting flights from Philadelphia to Seattle. You can compare airfare deals from 6 airlines and multiple travel sites from $101, book and save on cheap plane tickets and last minute offers. Also check out PHL-SEA flight schedule to find best flight time, convenient departure and arrival airports.

Find One-Way and Round-Trip Philadelphia to Seattle Flight Deals

To find the cheapest one way airline ticket select the date with the lowest price on the calendar below and click «Find Flights». To search for round-trip flight deals click on the link «Check prices for return flights» and select the date of the return flight. Cheapest flights in November: $101 (one-way), $173 (round-trip).
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Full flight schedule will help you in detecting at what time planes fly from Philadelphia to Seattle. You can also specify the concrete flights and airlines on the route and how long the flight actually is. Use the calendar for today, tomorrow or other specific date as some flights are available only on certain days of the week.
Departure Arrival Flight Details Flight Duration Price
06:00 — 12:07
06:00 — 07:31 UA1834 United Airlines
Philadelphia — Chicago
1h 49m stop
10:35 — 13:22 UA2849 United Airlines
Chicago — Seattle
9h 7m
including layover
Find flight
from$202
06:45 — 17:37
06:45 — 09:02 NK905 Spirit Airlines
Philadelphia — Las Vegas
5h 55m stop
14:57 — 17:37 NK781 Spirit Airlines
Las Vegas — Seattle
13h 52m
including layover
Find flight
from$195
07:15 — 14:53
07:25 — 10:07 NK905 Spirit Airlines
Philadelphia — Las Vegas
2h 1m stop
15:50 — 18:39 NK413 Spirit Airlines
Las Vegas — Seattle
10h 38m
including layover
Find flight
from$185
07:15 — 20:26
07:15 — 09:59 NK905 Spirit Airlines
Philadelphia — Las Vegas
7h 37m stop
17:36 — 20:26 NK1455 Spirit Airlines
Las Vegas — Seattle
16h 11m
including layover
Find flight
from$185
08:10 — 13:55
08:10 — 10:32 UA2383 United Airlines
Philadelphia — Denver
1h 18m stop
11:50 — 13:55 UA690 United Airlines
Denver — Seattle
8h 45m
including layover
Find flight
from$239
08:33 — 16:31
08:33 — 11:45 NK579 Spirit Airlines
Philadelphia — Los Angeles
1h 51m stop
13:36 — 16:31 NK260 Spirit Airlines
Los Angeles — Seattle
10h 58m
including layover
Find flight
from$129
10:10 — 16:16
10:10 — 11:41 UA2657 United Airlines
Philadelphia — Chicago
1h 49m stop
13:30 — 16:16 UA1485 United Airlines
Chicago — Seattle
9h 6m
including layover
Find flight
from$202
10:10 — 22:42
10:10 — 11:41 UA2657 United Airlines
Philadelphia — Chicago
8h 18m stop
20:04 — 22:53 UA2211 United Airlines
Chicago — Seattle
15h 32m
including layover
Find flight
from$282
11:56 — 17:22
11:56 — 13:38 SY1776 Sun Country Airlines
Philadelphia — Minneapolis
1h 49m stop
15:27 — 17:22 SY285 Sun Country Airlines
Minneapolis — Seattle
8h 26m
including layover
Find flight
from$248
12:00 — 18:45
12:00 — 13:32 UA1920 United Airlines
Philadelphia — Chicago
2h 33m stop
16:05 — 18:45 UA2278 United Airlines
Chicago — Seattle
9h 45m
including layover
Find flight
from$333
12:15 — 22:53
12:15 — 13:47 UA2394 United Airlines
Philadelphia — Chicago
6h 17m stop
20:04 — 22:53 UA2211 United Airlines
Chicago — Seattle
13h 38m
including layover
Find flight
from$325
13:15 — 22:46
13:15 — 14:39 UA221 United Airlines
Philadelphia — Chicago
5h 16m stop
19:55 — 22:46 UA2850 United Airlines
Chicago — Seattle
12h 31m
including layover
Find flight
from$314
13:19 — 21:11
13:19 — 15:35 F93265 Frontier Airlines
Philadelphia — Denver
3h 33m stop
19:08 — 21:11 F93405 Frontier Airlines
Denver — Seattle
10h 52m
including layover
Find flight
from$101
14:29 — 20:31
14:29 — 15:45 UA4824 United Airlines
Philadelphia — Washington D.C.
1h 45m stop
17:30 — 20:31 UA326 United Airlines
Washington D.C. — Seattle
9h 2m
including layover
Find flight
from$205
15:40 — 21:11
15:40 — 18:02 UA2644 United Airlines
Philadelphia — Denver
1h 3m stop
19:05 — 21:11 UA299 United Airlines
Denver — Seattle
8h 31m
including layover
Find flight
from$202
15:40 — 23:09
15:40 — 18:02 UA2644 United Airlines
Philadelphia — Denver
3h 2m stop
21:04 — 23:09 UA2651 United Airlines
Denver — Seattle
10h 29m
including layover
Find flight
from$202
17:00 — 22:42
16:38 — 18:10 UA308 United Airlines
Philadelphia — Chicago
1h 29m stop
19:55 — 22:44 UA2211 United Airlines
Chicago — Seattle
8h 42m
including layover
Find flight
from$202
17:15 — 22:46
17:15 — 18:39 UA308 United Airlines
Philadelphia — Chicago
1h 16m stop
19:55 — 22:46 UA2850 United Airlines
Chicago — Seattle
8h 31m
including layover
Find flight
from$288
18:20 — 10:46
+1 day
18:20 — 21:39 UA1617 United Airlines
Philadelphia — San Francisco
10h 46m stop
08:25 — 10:46 UA2849 United Airlines
San Francisco — Seattle
19h 26m
including layover
Find flight
from$365
18:20 — 15:21
+1 day
18:20 — 21:39 UA1617 United Airlines
Philadelphia — San Francisco
15h 24m stop
13:03 — 15:21 UA2391 United Airlines
San Francisco — Seattle
24h 1m
including layover
Find flight
from$365
*Departure and arrival times - local. Updated on November 25, 2024

Flight Information

Below we will explain in detail what the flights cost on the destination from Philadelphia to Seattle depends on and how to choose the most interesting flight option for you.

Distance between Philadelphia and Seattle is 3817 miles. Time difference between the cities is 3h. Airplanes depart 05:30 to 22:50 from 4 Philadelphia airports and arrive 05:30 to 22:50 to 3 Seattle airports. Average flight time is 13h 57m.

  • The fastest flight 8h 14m
  • Average flight time 13h 57m
  • The earliest flight 05:30
  • The latest flight 22:50
  • Distance 2372 ml

The cheapest months to travel to Seattle are february (from 101 $), january (from 129 $), december (from 163 $).

The most expensive months are november (from 480 $), december (from 163 $), january (from 129 $).

What is the lowest airfare Philadelphia to Seattle?

The cheapest plane ticket found by our users is $101. This airfare is for economy class on one-way F93265 flight by Frontier Airlines for February 21, 2025 which leaves Philadelphia Int. in Philadelphia at 13:19 am and arrives at Seattle Seattle-Tacoma Intl at 21:11.

Economy class
$101
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Business class
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First class
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Popular Airlines on the Route

The flight Philadelphia — Seattle is served by 6 regular airlines and 3 low-cost airlines. Most of the flights on this route are operated by Frontier Airlines - 3 departures per week at the price of from $ 101 . And the most expensive tickets are offered by Turkish Airlines airline - from $ 2206.

Direct flights

There’re no direct flights on this route. Try flights with stops.

Connecting Flights

There are 214 flights with layovers on the route. The fastest connecting flight is UA1834 by United Airlines takes 8h 14m and the cheapest is F93265 by Frontier Airlines for $101.

  • F9 - Frontier Airlines
    from $101
    Find
  • EI - Aer Lingus
    from $954
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  • SY - Sun Country Airlines
    from $248
    Find
  • TK - Turkish Airlines
    from $1324
    Find
  • UA - United Airlines
    from $202
    Find
  • NK - Spirit Airlines
    from $129
    Find
See more connecting flights

Airports

You can fly from Philadelphia to Seattle from 4 airports (Philadelphia Int., North Philadelphia, Mustin Alf, Philadelphia Sea Plane Base).

Philadelphia airports

  • Philadelphia Int.-PHL
    from $101
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  • North Philadelphia-PNE
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  • Mustin Alf-MUV
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  • Philadelphia Sea Plane Base-PSQ
    Find

Seattle airports

  • Boeing Field International Airport-BFI
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  • Seattle-Tacoma Intl-SEA
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  • Kenmore Air Harbor SPB-LKE
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How to book a plane ticket yourself?

How to book an air ticket yourself?
  • Fill in the search parameters — cities of departure and destination, departure and return dates and click «Find flights»
  • Select the best flight that you like. Please, check the airports of departure and arrival. Select the best fare, but pay attention to the following flight details - airports of departure and arrival, flight duration and layovers. Please use filters and sort to find the best flight.
  • Click «Buy» when you are ready — our system will redirect you to the site that sells the selected flight ticket.
  • Fill in all passenger and payment information — passport and contact information, please double check all passengers’ names and make a payment for your itinerary.
  • That's it — you will receive an email with your e-ticket usually within 10 minutes after your flight is confirmed. Please, print the e-ticket and have it with you at the airport. You would need to have only a passport and/or a required form of ID to travel. Please, check your Visa requirements if you travel outside of the United States or Canada.

    To find a plane ticket, please select dates.

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