Cheap flights from Philadelphia to Seattle (PHL - SEA) from $143

Mon 7/18:23 pmPHL - SEA

1 stop15h 16mFrontier

Wed 7/101:34 pmSEA - PHL

2 stops13h 06mFrontier

Deal found 5/18$284

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Thu 5/238:17 pmPHL - SEA

1 stop15h 28mFrontier

Sat 6/110:08 pmSEA - PHL

1 stop28h 26mFrontier

Deal found 5/17$289

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Tue 6/41:04 pmPHL - SEA

1 stop20h 57mFrontier

Fri 6/218:04 amSEA - PHL

1 stop18h 32mFrontier

Deal found 5/18$293

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Fri 5/248:24 amPHL - SEA

1 stop14h 40mFrontier

Fri 6/73:34 pmSEA - PHL

1 stop11h 02mFrontier

Deal found 5/17$296

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Mon 6/38:30 pmPHL - SEA

1 stop25h 44mFrontier

Sat 6/1510:26 pmSEA - PHL

1 stop28h 10mFrontier

Deal found 5/18$298

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Thu 5/232:14 pmPHL - SEA

1 stop21h 31mFrontier

Sat 6/110:08 pmSEA - PHL

1 stop28h 26mFrontier

Deal found 5/18$304

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Mon 5/278:26 pmPHL - SEA

1 stop25h 48mFrontier

Wed 6/127:59 amSEA - PHL

1 stop18h 34mFrontier

Deal found 5/18$323

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Mon 5/278:26 pmPHL - SEA

1 stop25h 48mFrontier

Fri 5/3110:24 pmSEA - PHL

1 stop10h 46mFrontier

Deal found 5/17$326

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Mon 7/81:27 pmPHL - SEA

1 stop22h 11mFrontier

Wed 7/101:34 pmSEA - PHL

1 stop13h 06mFrontier

Deal found 5/17$327

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• One of the most popular airlines traveling from Philadelphia to Seattle is Frontier. Flights from Frontier traveling this route typically cost $417.00 RT. This price is typically 68% cheaper than other airlines that offer Philadelphia to Seattle flights. When booking this route, the cheapest RT price found was $159. Philadelphia Airport is the most common Philadelphia airport to take off from when flying to Seattle. Seattle/Tacoma Intl Airport is the most popular arrival airport in Seattle. When flying from Philadelphia to Seattle, Frontier flights are 11% more popular than any other airline flying that same route.

Sun 7/147:30 amPHL - SEA

1 stop13h 02mSun Country Air

Sun 7/2111:59 pmSEA - PHL

1 stop8h 34mSun Country Air

Deal found 5/18$290

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Fri 6/2112:06 pmPHL - SEA

1 stop13h 48mSun Country Air

Sun 6/3011:59 pmSEA - PHL

1 stop8h 30mSun Country Air

Deal found 5/18$294

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Tue 7/911:45 amPHL - SEA

1 stop8h 14mSun Country Air

Fri 7/196:00 pmSEA - PHL

1 stop24h 04mSun Country Air

Deal found 5/18$295

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Wed 5/2211:50 amPHL - SEA

1 stop22h 55mSun Country Air

Wed 5/295:45 pmSEA - PHL

1 stop14h 51mSun Country Air

Deal found 5/18$300

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Thu 7/1112:14 pmPHL - SEA

1 stop8h 05mSun Country Air

Fri 7/1911:59 pmSEA - PHL

1 stop18h 05mSun Country Air

Deal found 5/18$310

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Wed 5/2211:50 amPHL - SEA

1 stop22h 55mSun Country Air

Mon 5/2711:59 pmSEA - PHL

1 stop7h 52mSun Country Air

Deal found 5/18$325

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Thu 8/112:07 pmPHL - SEA

1 stop13h 46mSun Country Air

Thu 8/111:59 pmSEA - PHL

1 stop8h 21mSun Country Air

Deal found 5/18$329

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• Sun Country Air is one of the most popular airlines used for those traveling from Philadelphia to Seattle. Flights on this route from Sun Country Air typically cost $431.68 RT, a price that is 67% more expensive than the average Philadelphia to Seattle flight. The cheapest flight found was $188 RT. The most popular departure airport in Philadelphia when flying to Seattle is Philadelphia Airport. The most popular airport to fly into when visiting Seattle is Seattle/Tacoma Intl Airport. When flying from Philadelphia to Seattle, Sun Country Air flights are 3% more popular than any other airline flying that same route.

Currently, January is the cheapest month in which you can book a flight from Philadelphia to Seattle (average of $247). Flying from Philadelphia to Seattle in July is currently the most expensive (average of $407). 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.

• What airports do I use to fly from Philadelphia to Seattle?

  Booking a flight from Philadelphia (PHL) to Seattle/Tacoma Intl (SEA) is your only option if you wish to fly from Philadelphia to Seattle. On a typical day, there are 3 flights from Philadelphia to Seattle/Tacoma Intl, all of which are around 5h 46m for a nonstop flight. You can also purchase a plane ticket from 9 airlines when you book a flight from Philadelphia to Seattle.

• Can I find flights from Philadelphia to Seattle for under $300 on Cheapflights?

  Yes, there are multiple flights from Philadelphia to Seattle for under $300. The cheapest flight booked recently is on Frontier for just $284, but on average you can expect to pay $295.

• Are there nonstop flights from Philadelphia to Seattle for under $300 on Cheapflights?

  Cheapflights has at least 20 direct flights from Philadelphia to Seattle under $300. A good price for a nonstop flight from Philadelphia to Seattle is less than $342.

• Are there last-minute flights available from Philadelphia to Seattle for under $300?

  There are currently 20+ open flights from Philadelphia to Seattle within the next 7 days for less than $300.

• What days are nonstop flights available from Philadelphia to Seattle?

  Nonstop flights are available for this route on the following days: Sunday, Tuesday, Wednesday, Friday.

• How popular is this Philadelphia to Seattle flight route?

  Flights from Philadelphia to Seattle/Tacoma Intl have been viewed 29 times in the past calendar month.

• How many flights depart from Philadelphia to Seattle on average per day?

  On average, you can expect to see 3 flights from Philadelphia to Seattle a day.
  Evening (6pm - Midnight) - 100% of flight departures

• How long is the flight from Philadelphia to Seattle?

  A quick flight from Philadelphia to Seattle can take about 13h 02m. Frontier provides one of the quickest options available for as low as $284. The distance between Philadelphia and Seattle is about 2385 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

• What are the cheapest airlines flying from Philadelphia to Seattle round-trip?

  According to our current data, Frontier ($284), Sun Country Air ($290), and Spirit Airlines ($291) offers the cheapest pricing from Philadelphia to Seattle. These flights start at 30% lower than the current average price 3 months from now.

• What are the cheapest airlines to fly from Philadelphia to Seattle one-way?

  One-way options have recently been found by users for as low as $143 on Sun Country Air. Other airlines that offer cheap prices include Frontier from $145 and American Airlines from $149 one-way.

• What are the most popular airlines that fly from Philadelphia to Seattle?

  The most popular airlines flying from Philadelphia to Seattle are Undisclosed Carrier, American Airlines and Alaska Airlines. Something to consider prior to booking your flight.

• What are the most reliable airlines from Philadelphia to Seattle?

  Consider American Airlines (86%), Qatar Airways (86%) or British Airways (86%) when booking your flight. These represent the most reliable airlines when flying from Philadelphia to Seattle.

• What are the cheapest flights from Philadelphia to Seattle?

  While on average a flight from Philadelphia to Seattle is generally $1,009, our data shows the cheapest flight currently is $168. When looking at the most popular route, (Philadelphia - Seattle/Tacoma Intl), you can expect to pay $171 for that flight.

• What does PHL to SEA mean?

  PHL stands for Philadelphia Airport, while SEA stands for Seattle/Tacoma Intl Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry.

• Where are the most common layover locations when flying from Philadelphia to Seattle?

  Philadelphia to Seattle flights have a layover in Denver most often. Chicago sees the second most layovers for non-direct flights flying from Philadelphia to Seattle.

• What are some popular things to do or see while on a layover in Denver?

  Coors Field, 16th Street Mall, and Civic Center Park are the most popular attractions in Denver if you're in need of something to do during your layover. Those on a layover in Denver interested in visiting Coors Field, 16th Street Mall, or Civic Center Park can do so by traveling 18.4 mi, 18.7 mi, and 18.7 mi, respectively from Denver Intl. Travelers in need of a car in Denver can rent one for about $43 per day.

• What are some popular points of interest to see during a layover in Chicago?

  Most Chicago visitors opt to spend their time at Grant Park, Magnificent Mile, and Wrigley Field. Grant Park, Magnificent Mile and Wrigley Field are located about 16.2 mi, 15.5 mi, and 13.0 mi, respectively from Chicago O'Hare Intl if you are interested in checking them out. Those looking to explore during their layover in Chicago can rent a car from Chicago O'Hare Intl for about $55 per day.

• Where are the least popular layover locations for Philadelphia to Seattle flights?

  Flights departing from Philadelphia and landing in Seattle layover in Salt Lake City least frequently.

• Can I find deals for flights from Philadelphia to Seattle that include extra baggage allowance?

  The amount of baggage you can bring on your Philadelphia to Seattle flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

• Can I find deals on flights from Philadelphia to Seattle with specific airlines?

  Yes, Cheapflights allows you to browse and filter Philadelphia to Seattle flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

• Can I find deals for flights from Philadelphia to Seattle that include hotel bookings?

  Yes. In addition to deals on Philadelphia to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

• How can I find direct flights from Philadelphia to Seattle?

  After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Philadelphia to Seattle.

• Can I find deals for business class flights from Philadelphia to Seattle?

  Yes. Cheapflights offers flight deals from Philadelphia to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

• Can I find deals for flights from Philadelphia to Seattle that allow pets onboard?

  Many airlines flying from Philadelphia to Seattle offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

• Can I find deals on last-minute flights from Philadelphia to Seattle?

  Yes, you can often find last-minute deals on Philadelphia to Seattle flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

• How recently were the Philadelphia to Seattle flight deals updated?

  The Philadelphia to Seattle flight deals you see on this page were last updated on 5/18.