> > > > > >
Philadelphia International Airport to Seattle Tacoma Intl. Airport flight

Explore the cheapest one-way and round-trip flights from Philadelphia International Airport to Seattle Tacoma Intl. Airport over the next 90 days, with one-way fares from INR 15,179 and round-trip from INR 35,033. Based on Trip.com's latest 7-day flight data.

Displayed flight fares from Philadelphia to Seattle are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Flight.News
A Wind Advisory remains in effect for Seattle from 6 PM this evening to 4 AM PST Sunday. Expect south winds of 15 to 25 mph with gusts up to 45 mph. Gusty winds will blow around unsecured objects, tree limbs could be blown down, and a few power outages may result.

Trip.com Price Insights: Flights from Philadelphia International Airport to Seattle Tacoma Intl. Airport

What is the cheapest month for one-way flights from Philadelphia International Airport to Seattle Tacoma Intl. Airport?

Data is based on average one-way flight prices from Philadelphia International Airport to Seattle Tacoma Intl. Airport in Trip.com's database over the past 12 months.

Based on Trip.com’s data from the past 12 months, if you’re looking for a low-cost one-way ticket from Philadelphia International Airport to Seattle Tacoma Intl. Airport, the best time to buy is in March, with an average price of INR 15,806. You’ll want to avoid August, when the average price can reach as high as INR 42,425.

INR 42,425
INR 29,116
INR 15,806
INR 2,497
    Cheapest
  • INR 24,380
    Nov
  • INR 29,328
    Dec
  • INR 17,320
    Jan
  • INR 25,998
    Feb
  • INR 15,806
    Mar
  • INR 31,231
    Apr
  • INR 25,626
    May
  • INR 20,416
    Jun
  • INR 24,496
    Jul
  • INR 42,425
    Aug
  • INR 27,950
    Sep
  • INR 32,343
    Oct

What is the cheapest day of the week to fly from Philadelphia International Airport to Seattle Tacoma Intl. Airport?

The data is based on the past 12 months and shows the average ticket prices from Philadelphia International Airport to Seattle Tacoma Intl. Airport for each day of the week in the Trip.com database.

Based on Trip.com’s data from the past 12 months, the cheapest day to depart from Philadelphia International Airport to Seattle Tacoma Intl. Airport is Saturday, with average fares typically lower than other days. You’ll want to avoid flying on Friday, as ticket prices are usually the highest that day.

INR 29,886
INR 24,925
INR 19,964
INR 15,003
    Cheapest
  • INR 29,262
    Mon
  • INR 25,731
    Tue
  • INR 21,473
    Wed
  • INR 26,506
    Thu
  • INR 29,886
    Fri
  • INR 19,964
    Sat
  • INR 26,049
    Sun

Which airline offers the cheapest flights from Philadelphia International Airport to Seattle Tacoma Intl. Airport?

The cheapest airline flying from Philadelphia International Airport to Seattle Tacoma Intl. Airport is Frontier Airlines (from INR 13,363) among 7 carriers operating this route. Based on Trip.com's latest 7-day flight data.

Frontier Airlines
From INR 13,363
Delta Air Lines
From INR 15,855
American Airlines
From INR 16,404
Alaska Airlines
From INR 17,094
United Airlines
From INR 17,446
Hahn Air
From INR 17,742
Sun Country Airlines
From INR 19,995

Find more flights and airlines

What is the flight schedule from Philadelphia International Airport to Seattle Tacoma Intl. Airport?

Check the schedule for flights from Philadelphia to Seattle and find the flight that best matches your travel plans.

Flight info.
Departure
Arrival
Weekly Schedule
  1. DL2092

    8:26 AM

    PHL

    5h 58m

    11:24 AM

    SEA

    S M T W T F S
    Search
  2. AS370

    7:02 AM

    PHL

    6h 6m

    10:08 AM

    SEA

    S M T W T F S
    Search
  3. AA2500

    6:35 PM

    PHL

    6h 24m

    9:59 PM

    SEA

    S M T W T F S
    Search
  4. AS443

    6:46 PM

    PHL

    6h 10m

    9:56 PM

    SEA

    S M T W T F S
    Search
  5. DL2829

    6:40 PM

    PHL

    5h 7m

    Nonstop

    9:47 PM

    SLC

    S - - W T - S
    Search
  6. DL2998

    10:45 PM

    SLC

    2h 26m

    Nonstop

    12:11 AM

    SEA

    S M T W T F S
  7. AA1850

    12:47 PM

    PHL

    5h 19m

    Nonstop

    4:06 PM

    PHX

    S M T W T F S
    Search
  8. AA2177

    6:28 PM

    PHX

    3h 13m

    Nonstop

    8:41 PM

    SEA

    S M T W T F S
  9. UA2661

    6:00 AM

    PHL

    6h 22m

    Nonstop

    9:22 AM

    SFO

    S - - W T F S
    Search
  10. UA2744

    12:22 PM

    SFO

    2h 17m

    Nonstop

    2:39 PM

    SEA

    S M T W T F S
  11. DL2270

    12:09 PM

    PHL

    2h 17m

    Nonstop

    2:26 PM

    ATL

    S M T W T F S
    Search
  12. DL714

    6:10 PM

    ATL

    5h 36m

    Nonstop

    8:46 PM

    SEA

    S M T W T F S
  13. F91147

    5:14 PM

    PHL

    2h 40m

    Nonstop

    7:54 PM

    ATL

    S M T W T F S
    Search
  14. F93923

    9:32 PM

    ATL

    4h 36m

    Nonstop

    11:08 PM

    LAS

    S M T W T F S
  15. F92407

    7:35 AM

    LAS

    3h 3m

    Nonstop

    10:38 AM

    SEA

    S - - W T - S
Find more flights and airlines

About Philadelphia International Airport and Seattle Tacoma Intl. Airport

Learn about Philadelphia International Airport (PHL) and Seattle Tacoma Intl. Airport (SEA) — including location, terminals, transportation, and travel tips.

Flight distance 3,821.03 km
Cheapest one-way ticket price INR 15,179
Cheapest return ticket price INR 33,357

FAQs for Philadelphia International Airport to Seattle Tacoma Intl. Airport Flights

  • How long is the flight from Philadelphia International Airport to Seattle Tacoma Intl. Airport?

    Philadelphia International Airport to Seattle Tacoma Intl. Airport takes about 5 hours 30 minutes on average. Actual flight time may vary depending on route, weather and air traffic.
  • There are around 3 daily flights from Philadelphia International Airport (PHL) to Seattle Tacoma Intl. Airport (SEA).
  • The earliest flight from Philadelphia International Airport to Seattle Tacoma Intl. Airport departs at 07:00, and the last departs at 19:35, with about 8 flights per day. Flight times may change, so please check the latest departure and arrival times before you travel.
  • The route from Philadelphia International Airport (PHL) to Seattle Tacoma Intl. Airport (SEA) is quite popular. Without considering departure times or holidays, tickets cost around INR 38,046 in November, the most expensive month to book this route.
  • The earliest flight departs from Philadelphia International Airport (PHL) at 07:02 and arrives in Seattle Tacoma Intl. Airport (SEA) at 10:13.
  • The latest flight departs from Philadelphia International Airport (PHL) at 19:12 and arrives in Seattle Tacoma Intl. Airport (SEA) at 22:30.
    • The distance from Seattle-Tacoma International Airport to downtown is about 17 km. It takes about 30 minutes by taxi.
  • American Airlines is a very popular airline operating an average of 812 flights per month.
  • One-way flights from Philadelphia International Airport to Seattle Tacoma Intl. Airport currently start from INR 15,179, and round-trip fares start from INR 33,357. The current lowest fare is a Frontier Airlines flight departing on Wed, Nov 25; prices may vary depending on availability.
  • Yes. Alaska Airlines, American Airlines and Delta Air Lines operate direct flights from Philadelphia International Airport to Seattle Tacoma Intl. Airport, with an average flight time of 5 hours 16 minutes, and around 30 weekly flights. Actual flight frequency may vary by season.
  • Based on Trip.com flight data for departures within the next 30 days with at most one stop, the average one-way price from Philadelphia International Airport to Seattle Tacoma Intl. Airport is INR 28,735. Prices may vary depending on the departure date, airline, and availability.
  • Philadelphia International Airport to Seattle Tacoma Intl. Airport operates around 32 weekly flights, mainly by Alaska Airlines, American Airlines and Delta Air Lines. Actual frequency may vary during holidays and seasonal schedule adjustments.
  • Enter Philadelphia International Airport and Seattle Tacoma Intl. Airport, select your departure date and number of passengers, then compare flights by price, flight duration, and baggage allowance. Once you've chosen a fare, review the change and refund rules, fill in passenger details, and pay to receive your booking confirmation.

Note: Prices shown on this page are estimated lowest price and include all taxes and fees found in the last 24 hours.

Book with no extra fees

Prices displayed in this page are all-inclusive prices (incl. taxes, fuel surcharge, civil aviation development fund, etc) with all fees confirmed before payment. Fees for luggage, meals, WLAN, or other additional services are also included as shown in the flight cards.

Real-time pricing updates

Prices, availability, and travel information on this page were updated within last 24 hours—even in real-time. The more popular the route, the more precise the data.

Change & Cancellation Policy

Trip.com displays flight cancellation and change policies for each flight ticket during the booking process, including fees and applicable conditions. Please check the following scenarios:
Voluntary cancellation/change:
To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy.
Cancellation/change due to a flight schedule change:
If the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.