On this page, you can find and book flights from Seattle to Philadelphia. The distance between these cities is 3,829 km, with up to 32 flights per week, providing a wide range of departure times for your trip.
Flights on this route are operated by American Airlines, Alaska Airlines, and Delta. Ticket prices are dynamic, so we recommend using the price chart to find the best deals. You can also check how to get to the airport in Seattle and travel from the airport upon arrival.
The table shows direct flights Seattle → Philadelphia on the selected date. The flight takes approximately 5 h 9 min. Regular flights are operated by Alaska Airlines, American Airlines, Hawaiian Airlines and Delta. Departures from Seattle-Tacoma International Airport and Paine Field airports, arrivals at Philadelphia International Airport and Trenton-Mercer Airport.
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.
Below is a calendar of the lowest flight ticket prices for Seattle — Philadelphia by day. Pick a convenient date and instantly see the fare. The cheapest flights on this route start from AED 472 in ,, and the most expensive are around AED 1,071 in r. 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.
Seattle → Philadelphia, average one-way price
| Month | Average price | Level | Month | Average price | Level | Month | Average price | Level |
|---|---|---|---|---|---|---|---|---|
| Jan | AED 690 | low | May | AED 799 | medium | Sep | AED 763 | medium |
| Feb | AED 672 | low | Jun | AED 945 | high | Oct | AED 672 | low |
| Mar | AED 654 | low | Jul | AED 981 | high | Nov | AED 654 | low |
| Apr | AED 727 | medium | Aug | AED 872 | medium | Dec | AED 945 | high |
Some values are estimated based on seasonality.
In Philadelphia, the highest temperatures are recorded in July (max 30.3°C), which is also the rainiest month. The coldest period occurs in January, when temperatures drop to -1.5°C, while the driest weather typically sets in during November.
The most budget-friendly month for flying is August, with tickets starting AED 472. Peak prices are seen in June, when the minimum threshold starts AED 1,071, while in other months, fares stabilize at around AED 605.
For your trip, we recommend choosing September: the heat subsides to a comfortable 25.4°C, and the ticket price AED 622 offers a balanced option. It is best to avoid flying in June if your goal is maximum savings on airfare.
Four airlines operate on this route, with the majority of flights provided by American Airlines, Alaska Airlines, and Delta. There are approximately 32 departure options available weekly, including direct services and convenient connecting routes. American Airlines and Alaska Airlines handle the bulk of the traffic, offering the most frequent schedules. Below is detailed information for each carrier to help you choose the best flight time.
Flights Seattle — Philadelphia depart from Seattle-Tacoma International Airport and Paine Field and arrive at Philadelphia International Airport and Trenton-Mercer Airport. Below are pages for the cities, countries, and airports on the route: airlines, schedules, and travel guides.
The average travel time for a direct flight is about 5 hours 20 minutes. For routes with layovers, the duration will depend on the wait time at the transit hub.
Regular flights are operated by American Airlines, Alaska Airlines, Delta Air Lines, and Hawaiian Airlines. The first two carriers provide the highest frequency of departures.
Yes, there is regular direct service between the cities, with approximately 32 flights per week. This allows passengers to reach their destination without additional connections.
Flight prices change constantly based on demand and departure dates. You can find the current minimum in the low price calendar on our page.
All flights on this route arrive at Philadelphia International Airport (PHL), the region's main aviation hub.
Where travelers fly most — pick a route and check prices
