Cheap Flights from Seattle, WA to Philadelphia, PA from $87

On Cheapflightsplus.com you will find 1 direct and 150 connecting flights from Seattle to Philadelphia. You can compare airfare deals from 5 airlines and multiple travel sites from $87, book and save on cheap plane tickets and last minute offers. Also check out SEA-PHL flight schedule to find best flight time, convenient departure and arrival airports.

Find One-Way and Round-Trip Seattle to Philadelphia 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: $87 (one-way), $149 (round-trip).
Direct flights
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Full flight schedule will help you in detecting at what time planes fly from Seattle to Philadelphia. 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
09:44 — 17:50
09:44 — 17:50 AS442 Alaska Airlines
Seattle — Philadelphia
5h 6m
Find flight
from$137
05:30 — 19:14
05:30 — 07:55 NK176 Spirit Airlines
Seattle — Las Vegas
3h 35m stop
11:30 — 19:14 NK803 Spirit Airlines
Las Vegas — Philadelphia
10h 44m
including layover
Find flight
from$202
07:00 — 17:35
07:00 — 13:06 UA1373 United Airlines
Seattle — Chicago
1h 23m stop
14:29 — 17:35 UA1617 United Airlines
Chicago — Philadelphia
7h 35m
including layover
Find flight
from$202
08:00 — 18:21
08:00 — 16:06 UA1360 United Airlines
Seattle — Washington D.C.
1h 4m stop
17:10 — 18:21 UA4585 United Airlines
Washington D.C. — Philadelphia
7h 21m
including layover
Find flight
from$289
09:37 — 17:48
+1 day
09:37 — 13:25 F93406 Frontier Airlines
Seattle — Denver
22h 41m stop
12:06 — 17:48 F93266 Frontier Airlines
Denver — Philadelphia
29h 11m
including layover
Find flight
from$87
11:05 — 21:40
10:55 — 16:59 UA747 United Airlines
Seattle — Chicago
1h 20m stop
18:25 — 21:35 UA1776 United Airlines
Chicago — Philadelphia
7h 35m
including layover
Find flight
from$202
11:05 — 14:24
+1 day
11:05 — 17:10 UA747 United Airlines
Seattle — Chicago
18h 10m stop
11:20 — 14:24 UA2733 United Airlines
Chicago — Philadelphia
24h 19m
including layover
Find flight
from$284
12:35 — 23:24
12:35 — 16:17 UA1483 United Airlines
Seattle — Denver
1h 33m stop
17:50 — 23:24 UA415 United Airlines
Denver — Philadelphia
7h 49m
including layover
Find flight
from$202
15:18 — 23:24
+1 day
15:18 — 19:00 UA757 United Airlines
Seattle — Denver
22h 50m stop
17:50 — 23:24 UA415 United Airlines
Denver — Philadelphia
29h 6m
including layover
Find flight
from$268
16:00 — 06:10
+1 day
16:00 — 18:31 NK414 Spirit Airlines
Seattle — Las Vegas
3h 53m stop
22:24 — 06:10 NK904 Spirit Airlines
Las Vegas — Philadelphia
11h 10m
including layover
Find flight
from$186
22:08 — 17:48
+1 day
22:08 — 01:51 F91176 Frontier Airlines
Seattle — Denver
10h 15m stop
12:06 — 17:48 F93266 Frontier Airlines
Denver — Philadelphia
16h 40m
including layover
Find flight
from$107
22:08 — 05:37
+2 days
20:19 — 00:05 F91176 Frontier Airlines
Seattle — Denver
22h 5m stop
23:59 — 05:30 F93340 Frontier Airlines
Denver — Philadelphia
28h 29m
including layover
Find flight
from$107
23:59 — 10:50
+1 day
23:59 — 06:00 UA2019 United Airlines
Seattle — Chicago
1h 45m stop
07:45 — 10:50 UA2418 United Airlines
Chicago — Philadelphia
7h 51m
including layover
Find flight
from$202
05:30 — 07:28
+1 day
05:30 — 07:55 NK176 Spirit Airlines
Seattle — Las Vegas
9h 52m stop
17:47 — 00:49 NK256 Spirit Airlines
Las Vegas — Detroit
4h 56m stop
05:45 — 07:28 NK818 Spirit Airlines
Detroit — Philadelphia
22h 58m
including layover
Find flight
from$202
06:00 — 05:22
+1 day
06:00 — 08:46 NK801 Spirit Airlines
Seattle — Los Angeles
3h 17m stop
12:03 — 13:24 NK712 Spirit Airlines
Los Angeles — Las Vegas
8h 11m stop
21:35 — 05:22 NK904 Spirit Airlines
Las Vegas — Philadelphia
20h 22m
including layover
Find flight
from$180
06:00 — 05:22
+1 day
06:00 — 08:46 NK801 Spirit Airlines
Seattle — Los Angeles
4h 54m stop
13:40 — 15:01 NK1494 Spirit Airlines
Los Angeles — Las Vegas
6h 34m stop
21:35 — 05:22 NK904 Spirit Airlines
Las Vegas — Philadelphia
20h 22m
including layover
Find flight
from$180
07:05 — 23:24
07:05 — 09:25 UA1403 United Airlines
Seattle — San Francisco
1h 45m stop
11:10 — 14:56 UA1986 United Airlines
San Francisco — Denver
2h 54m stop
17:50 — 23:24 UA415 United Airlines
Denver — Philadelphia
13h 19m
including layover
Find flight
from$241
12:50 — 13:40
+1 day
12:50 — 15:24 NK414 Spirit Airlines
Seattle — Las Vegas
3h 47m stop
19:11 — 20:30 NK1495 Spirit Airlines
Las Vegas — Los Angeles
9h stop
05:30 — 13:40 NK844 Spirit Airlines
Los Angeles — Philadelphia
21h 50m
including layover
Find flight
from$160
16:00 — 14:20
+1 day
16:00 — 18:31 NK414 Spirit Airlines
Seattle — Las Vegas
4h 15m stop
22:46 — 05:44 NK2376 Spirit Airlines
Las Vegas — Detroit
6h 58m stop
12:42 — 14:20 NK1013 Spirit Airlines
Detroit — Philadelphia
19h 20m
including layover
Find flight
from$214
17:25 — 14:24
+1 day
17:25 — 20:12 UA2397 United Airlines
Seattle — Los Angeles
3h 41m stop
23:53 — 05:54 UA1832 United Airlines
Los Angeles — Chicago
5h 26m stop
11:20 — 14:24 UA2733 United Airlines
Chicago — Philadelphia
17h 59m
including layover
Find flight
from$289
17:26 — 07:28
+1 day
17:26 — 20:14 NK261 Spirit Airlines
Seattle — Los Angeles
1h 26m stop
21:40 — 05:03 NK262 Spirit Airlines
Los Angeles — Detroit
42m stop
05:45 — 07:28 NK818 Spirit Airlines
Detroit — Philadelphia
11h 2m
including layover
Find flight
from$161
18:13 — 09:41
+1 day
18:13 — 20:32 UA737 United Airlines
Seattle — San Francisco
2h 13m stop
22:45 — 06:52 UA1849 United Airlines
San Francisco — Washington D.C.
1h 38m stop
08:30 — 09:41 UA4590 United Airlines
Washington D.C. — Philadelphia
12h 28m
including layover
Find flight
from$208
18:13 — 10:50
+1 day
18:13 — 20:32 UA737 United Airlines
Seattle — San Francisco
3h 27m stop
23:59 — 06:18 UA2097 United Airlines
San Francisco — Chicago
1h 15m stop
07:45 — 10:50 UA2418 United Airlines
Chicago — Philadelphia
13h 37m
including layover
Find flight
from$208
19:32 — 14:15
+1 day
19:32 — 21:50 UA737 United Airlines
Seattle — San Francisco
2h 5m stop
23:55 — 06:13 UA1112 United Airlines
San Francisco — Chicago
5h 2m stop
11:15 — 14:15 UA2182 United Airlines
Chicago — Philadelphia
15h 43m
including layover
Find flight
from$316
23:55 — 13:55
+1 day
23:55 — 05:52 UA747 United Airlines
Seattle — Chicago
2h 56m stop
08:48 — 11:44 UA2415 United Airlines
Chicago — Washington D.C.
1h 6m stop
12:50 — 13:55 UA6211 United Airlines
Washington D.C. — Philadelphia
11h
including layover
Find flight
from$240
*Departure and arrival times - local. Updated on November 21, 2024

Flight Information

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

Distance between Seattle and Philadelphia is 3817 miles. Time difference between the cities is 3h. Airplanes depart 05:00 to 23:59 from 3 Seattle airports and arrive 05:00 to 23:59 to 4 Philadelphia airports. Average flight time is 5h 6m.

  • The fastest flight 5h 6m
  • Average flight time 5h 6m
  • The earliest flight 05:00
  • The latest flight 23:59
  • Distance 2372 ml

The cheapest months to travel to Philadelphia are november (from 66 $), february (from 87 $), december (from 137 $).

The most expensive months are january (from 161 $), december (from 137 $), february (from 87 $).

What is the lowest airfare Seattle to Philadelphia?

The cheapest plane ticket found by our users is $87. This airfare is for economy class on one-way F93406 flight by Frontier Airlines for February 21, 2025 which leaves Seattle-Tacoma Intl in Seattle at 09:37 am and arrives at Philadelphia Philadelphia Int. at 17:48.

Economy class
$87
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Business class
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First class
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Popular Airlines on the Route

The flight Seattle — Philadelphia is served by 5 regular airlines and 3 low-cost airlines. Most of the flights on this route are operated by Alaska Airlines - 17 departures per week at the price of from $ 137 . And the most expensive tickets are offered by United Airlines airline - from $ 766.

Direct flights

There are 1 nonstop flights on the route. The fastest direct flight is AS442 by Alaska Airlines takes 5h 6m and the cheapest is F93406 by Frontier Airlines for $137.

  • AS - Alaska Airlines
    from $137
    Find
See more direct flights

Connecting Flights

There are 150 flights with layovers on the route. The fastest connecting flight is UA1102 by United Airlines takes 7h 20m and the cheapest is F93406 by Frontier Airlines for $87.

  • AS - Alaska Airlines
    from $438
    Find
  • F9 - Frontier Airlines
    from $87
    Find
  • SY - Sun Country Airlines
    from $228
    Find
  • UA - United Airlines
    from $202
    Find
  • NK - Spirit Airlines
    from $160
    Find
See more connecting flights

Airports

You can fly from Seattle to Philadelphia from 3 airports (Boeing Field International Airport, Seattle-Tacoma Intl, Kenmore Air Harbor SPB).

Seattle airports

  • Boeing Field International Airport-BFI
    Find
  • Seattle-Tacoma Intl-SEA
    from $87
    Find
  • Kenmore Air Harbor SPB-LKE
    Find

Philadelphia airports

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

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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