For efficient check-in, verify your airline’s terminal before arriving at PHL. Terminals are spread out, and only some are connected by indoor walkways.
Most accurate provider | CheapOair 3 stars |
---|---|
Most trusted provider | CheapOair 3 stars |
Round-trip from | $298 (Delta) |
One-way from | $149 (Cheapflightsfares) |
Popular in | July |
Cheapest in | March |
Average price | $432 |
Good round-trip deal | $402 or less |
Good one-way deal | $200 or less |
Fly from
Fly to
Route
Depart
Return
Price
PhiladelphiaSeattle
PHL - SEA
PHLSEA
Philadelphia
dom. 6/29
6:30 pm-11:18 pm
1 stop7h 48m
Seattle/Tacoma Intl
mar. 7/1
7:10 am-5:20 pm
1 stop7h 10m
PhiladelphiaSeattle
PHL - SEA
PHLSEA
Philadelphia
sáb. 5/17
6:00 pm-12:10 am
1 stop9h 10m
Seattle/Tacoma Intl
dom. 5/18
3:20 pm-11:25 am
2 stops17h 05m
PhiladelphiaSeattle
PHL - SEA
PHLSEA
Philadelphia
mar. 8/12
6:30 am-1:25 pm
1 stop9h 55m
Seattle/Tacoma Intl
mar. 8/19
1:55 pm-12:14 am
1 stop7h 19m
PhiladelphiaSeattle
PHL - SEA
PHLSEA
Philadelphia
mié. 8/13
6:25 pm-11:25 pm
1 stop8h 00m
Seattle/Tacoma Intl
mar. 8/19
11:00 pm-9:55 am
1 stop7h 55m
PhiladelphiaSeattle
PHL - SEA
PHLSEA
Philadelphia
sáb. 5/24
6:15 am-2:10 pm
1 stop10h 55m
Seattle/Tacoma Intl
lun. 6/2
6:25 am-10:10 pm
1 stop12h 45m
PhiladelphiaSeattle
PHL - SEA
PHLSEA
Philadelphia
dom. 6/8
6:15 am-12:34 am
1 stop21h 19m
Seattle/Tacoma Intl
lun. 6/16
3:58 pm-11:24 am
2 stops16h 26m
PhiladelphiaSeattle
PHL - SEA
PHLSEA
Philadelphia
vie. 6/6
7:10 pm-10:26 pm
Nonstop6h 16m
Seattle/Tacoma Intl
dom. 6/15
10:41 pm-6:48 am
Nonstop5h 07m
PhiladelphiaSeattle
PHL - SEA
PHLSEA
Philadelphia
mié. 5/28
6:59 pm-9:58 pm
Nonstop5h 59m
Seattle/Tacoma Intl
dom. 6/1
9:25 pm-5:40 am
Nonstop5h 15m
PhiladelphiaSeattle
PHL - SEA
PHLSEA
Philadelphia
lun. 5/12
10:48 am-12:10 am
1 stop16h 22m
PhiladelphiaSeattle
PHL - SEA
PHLSEA
Philadelphia
dom. 6/29
6:30 pm-11:18 pm
1 stop7h 48m
Provider | Price Accuracy | Trust Score* |
---|---|---|
Price Accuracy1 star | Trust Score*3 stars | |
Price Accuracy3 stars | Trust Score*2 stars | |
Price Accuracy3 stars | Trust Score*3 stars | |
Price Accuracy2 stars | Trust Score*3 stars | |
Price Accuracy3 stars | Trust Score*2 stars | |
Price Accuracy- | Trust Score*1 star | |
Price Accuracy3 stars | Trust Score*3 stars | |
Price Accuracy- | Trust Score*3 stars | |
Price Accuracy3 stars | Trust Score*3 stars | |
Price Accuracy3 stars | Trust Score*3 stars |
The best time to book flights from Philadelphia to Seattle is 53 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Currently, January is the cheapest month in which you can book a flight from Philadelphia to Seattle (average of $238). Flying from Philadelphia to Seattle in July is currently the most expensive (average of $405). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
One of the essential ways to save on airfare from Philadelphia to Seattle is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 25% on airfare.
Travelers seeking maximum savings on their Philadelphia to Seattle flight should consider departing on Tuesday at noon when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
The most flights from PHL to SEA are scheduled on a Monday (7 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (4 on average).
In terms of precipitation, rainfall in Seattle ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit Seattle when rainfall is around 0.7 in.
If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).
Boarding
Comfort
Food
Entertainment
Crew
Overall
Reviews
Cheri,Jan 2025
FAT - SEA
Boarding
Comfort
Food
Entertainment
Crew
Overall
Reviews
Cheri,Jan 2025
FAT - SEA
Boarding
Comfort
Food
Entertainment
Crew
Overall
Reviews
Cheri,Jan 2025
FAT - SEA
Boarding
Comfort
Food
Entertainment
Crew
Overall
Reviews
Cheri,Jan 2025
FAT - SEA
Boarding
Comfort
Food
Entertainment
Crew
Overall
Reviews
Cheri,Jan 2025
FAT - SEA
Boarding
Comfort
Food
Entertainment
Crew
Overall
Reviews
Cheri,Jan 2025
FAT - SEA
Airline | Cheapest | Average | Flexibility | On-time |
---|---|---|---|---|
Cheapest$115 | Average$261 | FlexibilityNo cancel fee | On-time62% | |
Cheapest$128 | Average$235 | FlexibilityNo cancel fee | On-time62% | |
Cheapest$139 | Average$245 | FlexibilityNo cancel fee | On-time65% | |
Cheapest$199 | Average$315 | FlexibilityNo cancel fee | On-time83% | |
Cheapest$287 | Average$480 | FlexibilityNo cancel fee | On-time69% | |
Cheapest$288 | Average$413 | FlexibilityNo cancel fee | On-timeN/A | |
Cheapest$290 | Average$483 | FlexibilityNo cancel fee | On-time75% | |
Cheapest$297 | Average$476 | FlexibilityNo cancel fee | On-time85% | |
Cheapest$306 | Average$471 | FlexibilityNo cancel fee | On-time71% | |
Cheapest$327 | Average$467 | FlexibilityNo cancel fee | On-time63% |