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

One way Round trip

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On Cheapflightsplus.com you will find 5 direct and 219 connecting flights from Seattle to Philadelphia. You can compare airfare deals from 6 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).

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Best Flights from Seattle to Philadelphia Today

Take a look at the list of non stop flights and flights with layovers from Seattle to Philadelphia with the lowest price of $87. The fastest direct flight takes 5h 5m and the fastest connecting – 7h 14m.

Price	Departure	Arrival	Flight Duration	Airline	Flight
from $152 Find flight	21:15 Seattle Seattle-Tacoma Intl	05:25+1 день Philadelphia Philadelphia Int.	5h 10m	Hawaiian Airlines	HA6839
from $156 Find flight	21:15 Seattle Seattle-Tacoma Intl	05:25+1 день Philadelphia Philadelphia Int.	5h 10m	Alaska Airlines	AS444
from $184 Find flight	09:42 Seattle Seattle-Tacoma Intl	17:47 Philadelphia Philadelphia Int.	5h 5m	Alaska Airlines	AS442
from $224 Find flight	09:42 Seattle Seattle-Tacoma Intl	17:47 Philadelphia Philadelphia Int.	5h 5m	Hawaiian Airlines	HA6840
from $87 Find flight	15:11 Seattle Seattle-Tacoma Intl	05:49+1 день Philadelphia Philadelphia Int.	11h 38m layover 3h 58m - Las Vegas	Frontier Airlines	F94830 F91602
from $91 Find flight	20:01 Seattle Seattle-Tacoma Intl	05:09+2 дня Philadelphia Philadelphia Int.	30h 8m layover 23h 38m - Denver	Frontier Airlines	F91176 F93340
from $108 Find flight	16:58 Seattle Seattle-Tacoma Intl	05:32+1 день Philadelphia Philadelphia Int.	9h 34m layover 2h 9m - Las Vegas	Spirit Airlines	NK782 NK904
from $116 Find flight	06:25 Seattle Seattle-Tacoma Intl	22:09 Philadelphia Philadelphia Int.	12h 44m layover 6h 11m - Denver	Frontier Airlines	F93406 F93266
from $132 Find flight	15:58 Seattle Seattle-Tacoma Intl	05:44+1 день Philadelphia Philadelphia Int.	10h 46m layover 3h 39m - Las Vegas	Spirit Airlines	NK2328 NK2267
from $133 Find flight	23:55 Seattle Seattle-Tacoma Intl	11:02+1 день Philadelphia Philadelphia Int.	8h 7m layover 2h 4m - Minneapolis	Sun Country Airlines	SY290 SY1675
from $144 Find flight	23:55 Seattle Seattle-Tacoma Intl	11:04+1 день Philadelphia Philadelphia Int.	8h 9m layover 2h 18m - Minneapolis	Sun Country Airlines	SY290 SY1775
from $144 Find flight	18:34 Seattle Seattle-Tacoma Intl	11:02+1 день Philadelphia Philadelphia Int.	13h 28m layover 7h 25m - Minneapolis	Sun Country Airlines	SY286 SY1675
from $144 Find flight	18:42 Seattle Seattle-Tacoma Intl	11:10+1 день Philadelphia Philadelphia Int.	13h 28m layover 7h 37m - Minneapolis	Sun Country Airlines	SY286 SY1775
from $145 Find flight	00:20 Seattle Seattle-Tacoma Intl	10:47 Philadelphia Philadelphia Int.	7h 27m layover 1h 7m - Chicago	United Airlines	UA1832 UA2418
from $145 Find flight	10:56 Seattle Seattle-Tacoma Intl	21:35 Philadelphia Philadelphia Int.	7h 39m layover 1h 15m - Chicago	United Airlines	UA265 UA1776
from $145 Find flight	14:50 Seattle Seattle-Tacoma Intl	05:26+1 день Philadelphia Philadelphia Int.	11h 36m layover 3h 54m - San Francisco	United Airlines	UA1620 UA552

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*Departure and arrival times - local. Prices indicated for one-way flights. Information updated on May 22, 2025

Flight Schedule Seattle (Washington) to Philadelphia (Pennsylvania)

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	Flight Details	Flight Duration	Price
09:42 — 17:47	09:42 — 17:47 AS442 Alaska Airlines Seattle — Philadelphia	5h 5m	Find flight from$184
09:42 — 17:47	09:42 — 17:47 HA6840 Hawaiian Airlines Seattle — Philadelphia	5h 5m	Find flight from$224
21:15 — 05:25 +1 day	21:15 — 05:25 HA6839 Hawaiian Airlines Seattle — Philadelphia	5h 10m	Find flight from$152
21:15 — 05:25 +1 day	21:15 — 05:25 AS444 Alaska Airlines Seattle — Philadelphia	5h 10m	Find flight from$156
21:45 — 06:00 +1 day	21:45 — 06:00 HA6681 Hawaiian Airlines Seattle — Philadelphia	5h 15m	Find flight from$152
00:20 — 10:47	00:20 — 06:28 UA1832 United Airlines Seattle — Chicago 1h 7m stop 07:35 — 10:47 UA2418 United Airlines Chicago — Philadelphia	7h 27m including layover	Find flight from$145
05:10 — 17:22	05:10 — 07:22 UA706 United Airlines Seattle — San Francisco 1h 33m stop 08:55 — 17:22 UA706 United Airlines San Francisco — Philadelphia	9h 12m including layover	Find flight from$189
06:25 — 05:09 +1 day	06:25 — 10:14 F93406 Frontier Airlines Seattle — Denver 13h 16m stop 23:30 — 05:09 F93340 Frontier Airlines Denver — Philadelphia	19h 44m including layover	Find flight from$91
06:25 — 22:09	09:37 — 13:25 F93406 Frontier Airlines Seattle — Denver 6h 11m stop 12:06 — 17:48 F93266 Frontier Airlines Denver — Philadelphia	12h 44m including layover	Find flight from$116
07:00 — 17:36	07:00 — 13:14 UA1617 United Airlines Seattle — Chicago 1h 6m stop 14:20 — 17:36 UA1617 United Airlines Chicago — Philadelphia	7h 36m including layover	Find flight from$151
07:00 — 17:36	07:00 — 13:14 UA1502 United Airlines Seattle — Chicago 1h 6m stop 14:20 — 17:36 UA1617 United Airlines Chicago — Philadelphia	7h 36m including layover	Find flight from$174
09:10 — 11:10 +1 day	09:10 — 14:25 SY282 Sun Country Airlines Seattle — Minneapolis 17h 11m stop 07:36 — 11:10 SY1775 Sun Country Airlines Minneapolis — Philadelphia	23h including layover	Find flight from$173
10:55 — 21:31	10:55 — 17:10 UA2652 United Airlines Seattle — Chicago 1h 10m stop 18:20 — 21:31 UA1776 United Airlines Chicago — Philadelphia	7h 36m including layover	Find flight from$165
10:56 — 21:35	10:56 — 17:05 UA265 United Airlines Seattle — Chicago 1h 15m stop 18:20 — 21:35 UA1776 United Airlines Chicago — Philadelphia	7h 39m including layover	Find flight from$145
11:11 — 23:19	11:11 — 14:58 UA1969 United Airlines Seattle — Denver 2h 42m stop 17:40 — 23:19 UA360 United Airlines Denver — Philadelphia	9h 8m including layover	Find flight from$156
11:11 — 23:30	11:11 — 14:58 UA1049 United Airlines Seattle — Denver 2h 51m stop 17:49 — 23:30 UA360 United Airlines Denver — Philadelphia	9h 19m including layover	Find flight from$165
13:00 — 23:14	13:00 — 20:57 UA2275 United Airlines Seattle — Washington D.C. 1h 8m stop 22:05 — 23:14 UA4440 United Airlines Washington D.C. — Philadelphia	7h 14m including layover	Find flight from$156
13:55 — 00:14 +1 day	13:55 — 20:10 UA2665 United Airlines Seattle — Chicago 55m stop 21:05 — 00:14 UA2487 United Airlines Chicago — Philadelphia	7h 19m including layover	Find flight from$162
14:50 — 05:26 +1 day	14:50 — 17:06 UA1620 United Airlines Seattle — San Francisco 3h 54m stop 21:00 — 05:26 UA552 United Airlines San Francisco — Philadelphia	11h 36m including layover	Find flight from$145
15:11 — 05:49 +1 day	15:11 — 17:56 F94830 Frontier Airlines Seattle — Las Vegas 3h 58m stop 21:54 — 05:49 F91602 Frontier Airlines Las Vegas — Philadelphia	11h 38m including layover	Find flight from$87
15:58 — 05:44 +1 day	15:58 — 18:26 NK2328 Spirit Airlines Seattle — Las Vegas 3h 39m stop 22:05 — 05:44 NK2267 Spirit Airlines Las Vegas — Philadelphia	10h 46m including layover	Find flight from$132
16:58 — 05:32 +1 day	16:58 — 19:36 NK782 Spirit Airlines Seattle — Las Vegas 2h 9m stop 21:45 — 05:32 NK904 Spirit Airlines Las Vegas — Philadelphia	9h 34m including layover	Find flight from$108
17:30 — 18:01 +1 day	17:30 — 19:58 NK1682 Spirit Airlines Seattle — Las Vegas 14h 16m stop 10:14 — 18:01 NK1888 Spirit Airlines Las Vegas — Philadelphia	21h 31m including layover	Find flight from$165
17:35 — 05:21 +1 day	17:10 — 19:26 UA2482 United Airlines Seattle — San Francisco 1h 13m stop 21:00 — 05:26 UA552 United Airlines San Francisco — Philadelphia	8h 46m including layover	Find flight from$156
18:34 — 11:02 +1 day	18:34 — 23:59 SY286 Sun Country Airlines Seattle — Minneapolis 7h 25m stop 07:24 — 11:02 SY1675 Sun Country Airlines Minneapolis — Philadelphia	13h 28m including layover	Find flight from$144
18:42 — 11:10 +1 day	18:27 — 23:47 SY286 Sun Country Airlines Seattle — Minneapolis 7h 37m stop 07:42 — 11:16 SY1775 Sun Country Airlines Minneapolis — Philadelphia	13h 28m including layover	Find flight from$144
19:00 — 05:35 +1 day	19:00 — 22:51 UA1218 United Airlines Seattle — Denver 1h 19m stop 23:59 — 05:37 UA1218 United Airlines Denver — Philadelphia	7h 35m including layover	Find flight from$162
19:02 — 05:37 +1 day	12:49 — 16:40 UA757 United Airlines Seattle — Denver 1h 6m stop 23:59 — 05:37 UA1218 United Airlines Denver — Philadelphia	7h 35m including layover	Find flight from$156
20:01 — 05:09 +2 days	19:48 — 23:40 F91176 Frontier Airlines Seattle — Denver 23h 38m stop 23:30 — 05:09 F93340 Frontier Airlines Denver — Philadelphia	30h 8m including layover	Find flight from$91
22:05 — 09:55 +1 day	22:05 — 06:02 UA2402 United Airlines Seattle — Washington D.C. 2h 43m stop 08:45 — 09:55 UA4538 United Airlines Washington D.C. — Philadelphia	8h 50m including layover	Find flight from$156
22:55 — 09:33 +1 day	22:55 — 06:58 UA684 United Airlines Seattle — Washington D.C. 1h 23m stop 08:21 — 09:33 UA4538 United Airlines Washington D.C. — Philadelphia	7h 38m including layover	Find flight from$165
23:55 — 11:02 +1 day	23:55 — 05:20 SY290 Sun Country Airlines Seattle — Minneapolis 2h 4m stop 07:24 — 11:02 SY1675 Sun Country Airlines Minneapolis — Philadelphia	8h 7m including layover	Find flight from$133
23:55 — 11:04 +1 day	23:59 — 05:16 SY290 Sun Country Airlines Seattle — Minneapolis 2h 18m stop 07:42 — 11:16 SY1775 Sun Country Airlines Minneapolis — Philadelphia	8h 9m including layover	Find flight from$144
00:20 — 14:08	00:20 — 06:28 UA1832 United Airlines Seattle — Chicago 2h 24m stop 08:52 — 11:55 UA2277 United Airlines Chicago — Washington D.C. 1h stop 12:55 — 14:08 UA4544 United Airlines Washington D.C. — Philadelphia	10h 48m including layover	Find flight from$159
05:07 — 17:29	05:00 — 08:43 UA2269 United Airlines Seattle — Denver 52m stop 09:40 — 13:20 UA2329 United Airlines Denver — Chicago 54m stop 14:20 — 17:36 UA1617 United Airlines Chicago — Philadelphia	9h 22m including layover	Find flight from$170

Departure	Arrival	Flight Details	Flight Time	Price
		stop stop	including layover	Find flight from$

*Departure and arrival times - local. Updated on May 22, 2025

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 00:20 to 23:59 from 3 Seattle airports and arrive 00:20 to 23:59 to 4 Philadelphia airports. Average flight time is 5h 10m.

The fastest flight 5h 5m
Average flight time 5h 10m
The earliest flight 00:20
The latest flight 23:59
Distance 2372 ml

The cheapest months to travel to Philadelphia are february (from 105 $), may (from 105 $), july (from 117 $).

The most expensive months are november (from 348 $), december (from 166 $), august (from 145 $).

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 F94830 flight by Frontier Airlines for July 13, 2025 which leaves Seattle-Tacoma Intl in Seattle at 15:11 am and arrives at Philadelphia Philadelphia Int. at 05:49.

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 6 regular airlines and 3 low-cost airlines. Most of the flights on this route are operated by Alaska Airlines - 11 departures per week at the price of from $ 156 . And the most expensive tickets are offered by Alaska Airlines airline - from $ 3895.

Direct flights

There are 5 nonstop flights on the route. The fastest direct flight is AS442 by Alaska Airlines takes 5h 5m and the cheapest is F94830 by Frontier Airlines for $152.

AS - Alaska Airlines

from $156

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HA - Hawaiian Airlines

from $152

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Connecting Flights

There are 219 flights with layovers on the route. The fastest connecting flight is UA2275 by United Airlines takes 7h 14m and the cheapest is F94830 by Frontier Airlines for $87.

AS - Alaska Airlines

from $343

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F9 - Frontier Airlines

from $87

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SY - Sun Country Airlines

from $133

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UA - United Airlines

from $145

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NK - Spirit Airlines

from $108

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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

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Seattle-Tacoma Intl-SEA

from $87
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Kenmore Air Harbor SPB-LKE

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Philadelphia airports

Philadelphia Int.-PHL

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North Philadelphia-PNE

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Mustin Alf-MUV

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Philadelphia Sea Plane Base-PSQ

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Airplanes

There are flights to Philadelphia from Seattle by 6 airlines that use 0 aircraft brands. They range from huge modern airplanes to small-sized.

Top Domestic Destinations from Seattle

You may also consider searching for discounted plane tickets to some other popular places from Seattle within United States.

Seattle — Washington D.C.

from $78

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Seattle — Las Vegas

from $62

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Seattle — New York

from $180

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Seattle — Chicago

from $73

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Seattle — Phoenix

from $67

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Seattle — San Diego

from $74

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Seattle — Los Angeles

from $53

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Seattle — Denver

from $243

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Seattle — Dallas

from $72

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Seattle — Boston

from $63

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Top International Destinations from Seattle

Our state-of-the art metasearch will definitely provide you with the best airfare on international flights. We’re proud to partner with many reliable travel suppliers located outside the US what gives us an opportunity to offer the most competitive prices on far destinations.

Seattle — Tokyo

from $77

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Seattle — London

from $70

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Seattle — Vancouver

from $57

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Seattle — Cancun

from $63

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Seattle — Paris

from $66

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Seattle — Toronto

from $64

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Seattle — Calgary

from $76

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Seattle — Mumbai

from $80

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Seattle — Montreal

from $68

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Seattle — Amsterdam

from $64

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How to book a plane 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.
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