Seattle to Philadelphia

SEAPHL

Fly from Seattle to Philadelphia starting at SAR 340 with Frontier Airlines.Best fare available on Sep 29, 2026.Limited seats. Better plans. Book before it's gone.

Seattle to Philadelphia cheapest flights this week

29 Sept
Frontier Airlines
07:00SEA
02:36PHL
1 StopSAR 340VIEW DEAL
29 Sept
Southwest Airlines
23:05SEA
08:35PHL
1 StopSAR 784VIEW DEAL
29 Sept
Southwest Airlines
11:10SEA
20:55PHL
1 StopSAR 858VIEW DEAL
29 Sept
Alaska Airlines
21:27SEA
02:40PHL
DirectSAR 692VIEW DEAL
29 Sept
Alaska Airlines
22:59SEA
12:45PHL
1 StopSAR 770VIEW DEAL
1 Oct
United Airlines
23:14SEA
06:43PHL
1 StopSAR 770VIEW DEAL
1 Oct
Frontier Airlines
16:27SEA
21:09PHL
2 StopSAR 1,173VIEW DEAL
4 Oct
Southwest Airlines
00:10SEA
08:00PHL
1 StopSAR 1,154VIEW DEAL
5 Oct
Southwest Airlines
14:10SEA
22:10PHL
1 StopSAR 1,158VIEW DEAL
9 Oct
Frontier Airlines
21:16SEA
04:18PHL
1 StopSAR 755VIEW DEAL

Seattle to Philadelphia monthly flight fare trend

Sep
from SAR 340
Oct
from SAR 755
Nov
No flights
Dec
No flights
Jan
No flights
Feb
No flights

Airport Details

Origin

Seattle

Seattle–Tacoma International Airport (SEA)

Seattle, SEA
Zone

Los Angeles

Elev

433 ft

Destination

Philadelphia

Philadelphia International Airport (PHL)

Philadelphia, PHL
Zone

New York

Elev

36 ft

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