Philadelphia to Seattle Flight Route Information
| Travel Distance: | 7,700 Miles |
|---|---|
| Airlines Flying This Route: | Alaska Airlines, American Airlines, Qatar Airways |
| Weekly Flights: | 41 |
| Avg. Flight Duration: | 05.45 Hours |
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10/24/2026 Find Cheap Flights from Philadelphia to Seattle (PHL to SEA)
PHL - Philadelphia SEA - Seattle 
Find Cheap Flights from Philadelphia to Seattle (PHL to SEA)
Fares Starting from $152
PHL - Philadelphia SEA - Seattle Great deal! This is the lowest price we've seen for this one way route in the last 12 hours. Prices may change and aren't guaranteed for all flights or dates. Click on the price to continue your search and check the latest available fare. Ref. id 202609~Ref:I-Ddy8zVbUuJMg44c1EKYA
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Cheap Flights from Philadelphia to Seattle - Compare & Book Our Best Deals
With over 5 daily departures from Philadelphia to Seattle, this route offers great flexibility for different travel plans. Browse one-way fares from $151.99, round-trip fares from $281.66, and other affordable options across different budgets. Compare flight choices, explore schedules, and book the best Philadelphia to Seattle deals that fit your budget and travel preferences.
Top Airlines that fly from Philadelphia to Seattle
Cheap Flight Deals from Philadelphia to Seattle
PHL Philadelphia Sat, Oct 24
SEA Seattle
from $152
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PHL Philadelphia Mon, Oct 26
SEA Seattle
from $152
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PHL Philadelphia Mon, Nov 23
SEA Seattle
from $152
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PHL Philadelphia Sat, Oct 17
SEA Seattle
from $157
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PHL Philadelphia Tue, Oct 20
SEA Seattle
from $157
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PHL Philadelphia Thu, Oct 15
SEA Seattle
from $167
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PHL Philadelphia Fri, Oct 23
SEA Seattle
from $176
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*All fares above were last found on: Fares are one way/round trip. Fares incl. all fuel surcharges, taxes & fees and our service fees. Displayed fares are subject to change and cannot be guaranteed at the time of booking. See all booking terms and conditions. 202609~Ref:I-Ddy8zVbUuJMg44c1EKYA
Insights about cheap flights from Philadelphia to Seattle – Direct Flights, Duration & Best Travel Time
When it comes to booking cheap flights, having the right information at your fingertips can make all the difference. Dive into the insights for cheap flights from Philadelphia to Seattle and enhance your travel experience!
Daily Flights
5
Cheapest Month
April
Avg. Flight Duration
05.45
Peak Season
August
Distance
7,700 miles
Direct Flights
164
When is the Cheapest Time to Book Flights from PHL to SEA?
Explore data-powered insights and trends for flights from Philadelphia to Seattle. Discover average fares, cheap months to fly, when to book, and plan smarter.
What’s the cheapest day of the week to fly from Philadelphia to Seattle?‡
What is the cheapest month to fly from Philadelphia to Seattle?‡
‡This information is based on historical data from the last 365 days.
Finding Affordable Flights from Philadelphia to Seattle
- Plan Ahead - One of the keys to securing cheap flights from Philadelphia to Seattle is to plan your trip well in advance. Airlines often offer lower prices for those who book tickets months ahead. Keep an eye on special promotions and sales events, which can yield significant savings.
- Flexibility is Key - Being flexible with your travel dates can also lead to substantial cost savings. Consider flying during off-peak seasons or on weekdays when prices tend to be lower.
- Set Price Alerts - To keep tabs on flight prices, consider setting up fare alerts. These alerts will notify you when fares from Philadelphia to Seattle drop, giving you the opportunity to grab cheap deals.
- Consider Nearby Airports - If Seattle has multiple airports, check the prices at each one. Sometimes, flying into a nearby airport and then taking a short train or bus ride to your destination can be a much cheaper option.
- Bundle and Save - Booking your flight and accommodation together as a package can often result in significant savings. CheapOair offers these bundled deals, so make sure to explore this option.
When should I book flights from PHL to SEA? ‡
‡Got flexible travel dates? Use our flight data from the past year to discover ideal time to fly from Philadelphia to Seattle. Find out which months and days typically offer lower fares and let CheapOair search for the best options.
CheapOair provides the predicted prices for one-way trips or round-trips with a duration of 7 days for domestic and 14 days for international trips based on historical data and available flight information. Graphs are estimates only. Prices are subject to change and can't be guaranteed until ticketed.
Estimated price for
Round-trip
‡Graphs are estimates only. Based on historical data and available flight information. Prices are subject to change and cannot be guaranteed until ticketed.
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Insights About Flying from Philadelphia to Seattle
Which is the high season to travel from Philadelphia to Seattle?
The month of August is considered the high season for flying from PHL to SEA. Traveling during the high season can affect ticket prices and availability, making this data crucial for trip planning.
How many direct flights are available from PHL to SEA?
There are a total of 164 direct flights from Philadelphia to Seattle. For travelers seeking convenience and shorter travel times, this data is important when choosing flight options.
Which is the low season to travel from Philadelphia to Seattle?
April is considered the low season for traveling from Philadelphia to Seattle, Washington. Travelers looking for cost-effective options and fewer crowds may consider traveling during this period.
How many daily flights are there between Philadelphia to Seattle?
There are as many as 5 daily flights available for travelers between PHL to SEA. This data offers flexibility in choosing departure times that best suit your schedule.
Which is the busiest day for passengers flying between Philadelphia to Seattle?
Monday are the busiest days for passengers flying between Philadelphia to Seattle. Knowing the peak travel day can help you plan your trip to avoid overcrowded flights or airports.
What percentage of travelers spent an average of 4 days in Seattle, Washington?
Approximately 47.11% of travelers spent an average of 4 days exploring Seattle. This information can assist in planning the duration of your stay in Seattle
What percentage of PHL to SEA flyers traveled with kids under 14?
About 5% of passengers on flights from Philadelphia to Seattle were accompanied by children under the age of 14. This information is useful if you're planning a family trip and want to know how common it is to travel with young children on this route.
What percentage of Philadelphia to Seattle travelers were over 60 years old?
A notable 12% of travelers were aged 60 or older. This statistic provides insights for senior travelers or those seeking a mature travel demographic.
What percentage of PHL to SEA travelers were millennials?
Millennials make up a significant portion of travelers on this route, accounting for 47% of all passengers. If you're a millennial looking to connect with like-minded travelers, this statistic might interest you.
What percentage of Philadelphia to Seattle travelers were female?
Almost half of the passengers, approximately 47% were female. Knowing the gender distribution can be useful for solo female travelers or those interested in gender-related travel insights.
What percent of Philadelphia to Seattle travellers booked first or business class?
1% of travelers booked first or business class on this route.
At what time the earliest flight departs from Philadelphia?
The earliest flight departs at 7:00AM - 8:00AM.
On which days one can have the most flight options in Seattle?
Monday offer the most flight options in Seattle.
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All flight facts are based on last 3 months' data except the highest and lowest booking months that are based on last 3 months' data.
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Cheap Flights from Philadelphia to Seattle
Looking for flights from Philadelphia to Seattle? Look no more, for you�re at the right place. Book cheap flights from Philadelphia to Seattle on CheapOair and enjoy great discounts. Whether its leisure or a business trip, we offer the most competitive rates on flight tickets to destinations around the world. Grab PHL to SEA flight deals on CheapOair and save big! Hurry, our cheap rates are not going to last forever, so make your bookings right away!
Airports in Philadelphia
Philadelphia International Airport is a major airport serving the city of Philadelphia, Pennsylvania, U.S.A. It is the largest airport in the state. The airport is owned by City of Philadelphia and operated by Philadelphia Department of Commerce, Division of Aviation. It is a hub for American Airlines and UPS Airlines and serves as a focus city for Frontier Airlines. The airport offers passenger & cargo services to domestic and international destinations like London, Punta Cana, Cancun, Montego Bay, Los Angeles, Denver, Boston, and more. The airport is well connected to the city through taxis, limousines, rental cars, public transportation, and more.
Explore Seattle
Seattle is a seaport city and the seat of King County in Washington. One can easily explore the art, culture, and history of the city in its art galleries & museums. Seattle Asian Art Museum, the Olympic Sculpture Park, Seattle Art Museum, and Museum of Flight are some of the places which should not be missed by any art and culture enthusiast. While in Seattle, one can opt for San Juan Safari tours to watch whales in the surrounding region. Head to the USS Turner Joy (DD-951), a U.S. Navy destroyer to know about the Vietnam War. Within it visitors can opt for self-guided tours as well.
Things to Do in Seattle
Sky View Observatory
The Sky View Observatory is located on the 73rd floor of Columbia Center. At nearly 1,000 feet it offers the tallest public viewing area in the Pacific Northwest. The 360� panoramic view includes Mt. Rainier, Bellevue, the Cascade Mountains, Mt. Baker, Elliott Bay, the Olympic Mountains, the Space Needle and the city of Seattle.
San Juan Safaris
The waters surrounding San Juan Island, located near Seattle is the best place in North America to see wild orca whales! San Juan Safaris offers the highest quality whale watching tours with a focus on guests� experiences and respectful wildlife viewing. Experience orcas, seals, sea lions, eagles, and more from the comfort of our safe, fast, and US Coast Guard approved vessels. Tours are staffed by seasoned Captains and passionate Marine Naturalists who will teach you about the wildlife, ecology, and geology of the Salish Sea. San Juan Safaris also leads high quality Guided Sea Kayak Tours that give guests a chance to view eagles, seals, sea stars, and more!
USS Turner Joy (DD-951)
The USS Turner Joy DD-951 is a 418 ft. historic U.S. Navy destroyer. She is located just an hour outside of Seattle in Bremerton, Washington. She is one of the most complete naval museum ships in the US offering a unique historical naval adventure taking visitors back to the Vietnam war. The destroyer ship is most remembered for her participation with USS Maddox (DD-731) in the in the Gulf of Tonkin incident which occurred August 2, 1964, an action that led to the United States increased involvement in the Vietnam War. This fully restored U.S. Navy destroyer ship offers visitors a self-guided tour including a Prisoner of War (POW) room in remembrance of the US military men held in captivity during the Vietnam War.
Best Time to Fly to Seattle
The best time to visit the city of Seattle are the months of September-October. Summer is the peak season here and therefore prices can be sky high. Whereas the city observes cold winter.
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