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Flights Philadelphia — Seattle

Philadelphia
PHL
Seattle
SEA

Cheap flights Philadelphia — Seattle

Below you can see the best deals on flights Philadelphia — Seattle for upcoming dates. Direct and connecting flights from various airlines — compare prices and choose the right ticket.

The lowest price for the next 2 months is on 26 July, from AED 572.

Top 10 cheap flights Philadelphia — Seattle

Direct flights Philadelphia — Seattle

Direct flight options for Philadelphia — Seattle with no stopovers on upcoming dates. A direct flight is faster and more convenient — especially when travelling with luggage or children.

The fastest direct flight is operated by Delta — travel time is 5 h 59 min.

Top 10 direct flights Philadelphia — Seattle

About the Philadelphia — Seattle flight

On this page, you can book flights from Philadelphia to Seattle. The distance between the cities is 3,829 km, with up to 32 weekly flights, making it easy to find a convenient departure time. Find out how to get to Philadelphia International Airport to plan your travel logistics in advance.

Flights on this route are operated by airlines such as Delta Air Lines, Alaska Airlines, and American Airlines. Airfares are subject to seasonal changes, so we recommend using the price trend chart and checking how to get from Seattle airport to your final destination in advance.

Flight schedule Philadelphia — Seattle

The table shows direct flights Philadelphia → Seattle on the selected date. The flight takes approximately 5 h 56 min. Regular flights are operated by American Airlines, Alaska Airlines, Hawaiian Airlines and Delta. Departures from Philadelphia International Airport and Trenton-Mercer Airport airports, arrivals at Seattle-Tacoma International Airport and Paine Field.

For each flight, the following details are shown: departure time (local), arrival city and airport, flight number and airline, terminal or gate, and status. Click on a flight to open its details and go to ticket search. To view flights on a different day, change the date above the table.

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Flight ticket prices by day: Philadelphia — Seattle

Below is a calendar of the lowest flight ticket prices for Philadelphia — Seattle by day. Pick a convenient date and instantly see the fare. The cheapest flights on this route start from AED 557 in F, and the most expensive are around AED 670 in J. If your travel dates are flexible, the calendar will help you find the best price for your preferred period. To view round-trip fares, switch to the "Round trip" tab above the calendar, select your departure date — and the right-hand calendar will highlight the lowest prices for return flights on each day.

 
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Prices by month

Philadelphia → Seattle, average one-way price

MonthAverage priceLevelMonthAverage priceLevelMonthAverage priceLevel
JanAED 746mediumMayAED 860mediumSepAED 822medium
FebAED 709lowJunAED 1,006highOctAED 709low
MarAED 690lowJulAED 1,044highNovAED 746medium
AprAED 784mediumAugAED 968highDecAED 1,006high

Some values are estimated based on seasonality.

When to fly

The weather in Seattle is most pleasant in August, when temperatures reach 25.1°C with minimal rainfall. The rainiest and coolest period is January, with precipitation levels exceeding 200 mm and an average temperature around 6°C.

The lowest airfares are recorded in September, with tickets starting AED 557. Prices peak in January, when one-way fares start AED 670.

July is an ideal choice for travel, offering dry, sunny weather and flights averaging AED 572. It is best to avoid late autumn due to the high probability of prolonged rain.

Temperature · Seattle

Dry and wet days · Seattle

Wind speed and direction · Seattle

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How to get the best deal on a Philadelphia — Seattle ticket

  • Book your tickets at least 3–4 weeks in advance, as prices for transcontinental US flights tend to rise significantly closer to the departure date.
  • Compare offers from Alaska Airlines and American Airlines—these carriers often compete on this route, offering the most competitive direct flights.
  • Use the low price calendar on this page to see the difference in cost by day of the week; Tuesday or Wednesday departures are often cheaper than weekends.
  • Pay attention to carry-on and checked baggage allowances, as some airlines' lowest fares may not include a suitcase.
  • If direct flights for your preferred dates are too expensive, consider options with a short layover, with prices starting AED 520.

Airlines

Five airlines operate on this route, with Delta Air Lines, American Airlines, and Alaska Airlines being the leading carriers. Together, they provide approximately 32 flights per week. Below is an interactive list where you can explore detailed schedules for specific days and choose the best flight option.

  • American Airlines
    American AirlinesAA
    10x/week
    WebsiteFleet: 965211M pax/year
    • Direct flight PHL → SEA10x/week
      Duration
      6h 16m
      Days
      MTWTFSS
    29.9%Open →
  • Alaska Airlines
    Alaska AirlinesAS
    9x/week
    WebsiteFleet: 31545M pax/year
    • Direct flight PHL → SEA9x/week
      Duration
      6h 2m
      Days
      MTWTFSS
    28.9%Open →
  • Hawaiian Airlines
    Hawaiian AirlinesHA
    8x/week
    WebsiteFleet: 7511M pax/year
    • Direct flight PHL → SEA8x/week
    24.7%Open →
  • Delta
    DeltaDL
    5x/week
    WebsiteFleet: 986190M pax/year
    • Direct flight PHL → SEA5x/week
      Duration
      5h 58m
      Days
      MTWTFSS
    14.4%Open →
  • Finnair
    FinnairAY
    1x/week
    WebsiteFleet: 7911M pax/year
    • Direct flight PHL → SEA1x/week
      Duration
      6h 1m
      Days
      MTWTFSS
    2.1%Open →

Cities and airports on the Philadelphia — Seattle route

Flights Philadelphia — Seattle depart from Philadelphia International Airport and Trenton-Mercer Airport and arrive at Seattle-Tacoma International Airport and Paine Field. Below are pages for the cities, countries, and airports on the route: airlines, schedules, and travel guides.

Departure

Philadelphia

PHL
United States
About the cityHow to get thereWeatherAll about the country United States
Arrival

Seattle

SEA
United States
About the cityHow to get thereWeatherAll about the country United States
Departure airports
Arrival airports

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Frequently asked questions about the Philadelphia — Seattle flight

How long is the flight from Philadelphia to Seattle?

The estimated direct flight time is about 5 hours, covering a distance of 3,829 km between the cities.

Which airlines serve this route?

Regular flights are operated by Delta Air Lines, American Airlines, Alaska Airlines, as well as Finnair and Hawaiian Airlines.

Are there direct flights from Philadelphia to Seattle?

Yes, direct service is available on this route, provided by several major US carriers.

How much is the cheapest ticket?

Airfares change constantly depending on the season and demand. You can check the current minimum for your dates in the price calendar on this page.

Which airport does the flight arrive at?

All major flights from Philadelphia arrive at Seattle-Tacoma International Airport (SEA).

Where else you can fly from Philadelphia

AtlantaChicagoMiamiWashington, D.C.Los AngelesSan FranciscoLas VegasPortlandPragueFrankfurt am MainNew York City

Where else you can fly from Seattle

Los AngelesAnchorageVancouverSan FranciscoPhoenixSan DiegoSan JoseSpokanePortlandSanta AnaNew York CityChicagoWashington, D.C.SeoulLondonCincinnatiOklahoma CityAmsterdamRomeHelsinkiBeijing
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