$177 Cheap Sun Country Airlines flights Seattle (SEA) to Philadelphia (PHL)

View $177 flight on Fri, Dec 26, 2025Opens in a new window

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$177 Cheap Sun Country Airlines flights Seattle (SEA) to Philadelphia (PHL)

Prices were available within the past 7 days and start at $177 for one-way flights and $373 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sun Country Airlines
Thu, Aug 21 - Sun, Aug 31
SEA
Seattle
PHL
Philadelphia
$373 Roundtrip, found 4 hours ago
$373
Roundtrip
found 4 hours ago
Select Sun Country Airlines flight, departing Thu, Aug 21 from Seattle to Philadelphia, returning Sun, Aug 31, priced at $373 found 4 hours ago
Flights from Seattle Paine Field Intl. Airport (PAE) to Philadelphia (PHL)
Origin airport
Seattle Paine Field Intl. Airport
Destination airport
Philadelphia Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, JetBlue Airways, Southwest Airlines, Spirit Airlines, Sun Country Airlines, United
Popular airline
Alaska Airlines
Distance
2367 mi
Average flight time
9 hours 26 mins

Frequently asked questions

How much is a Sun Country Airlines flight from Seattle - Tacoma Intl. Airport (SEA) to Philadelphia Intl. Airport (PHL)?
Landing cheap one-way Sun Country Airlines flights from SEA to PHL from $177 on Expedia couldn't be easier --- just filter by "Price (lowest to highest)." Alternatively, check out our affordable round-trip fares from $373 for your next exciting adventure.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from SEA to PHL with Sun Country Airlines?
Sun Country Airlines flights to Philadelphia are often more affordable in the off-peak months of January and February. Whether you're in search of a one-way or a return ticket, you could land a better deal then.
What is the cheapest time to book flights from Seattle - Tacoma Intl. Airport (SEA) to Philadelphia Intl. Airport (PHL) with Sun Country Airlines?
To find cheap Sun Country Airlines fares from Seattle - Tacoma Intl. Airport (SEA) to Philadelphia Intl. Airport (PHL), start searching one to three months before your intended departure. Reserving domestic flights 34 to 86 days in advance could save you 25% compared to booking just 6 to 12 days ahead. The day you book can also impact how much you pay. Sunday is usually the cheapest, while Monday is often the most expensive for domestic flights. You can save 6% on average by choosing to book on a Sunday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does Sun Country Airlines fly nonstop from Seattle - Tacoma Intl. Airport (SEA) to Philadelphia Intl. Airport (PHL)?
To figure out if there's a direct trip from SEA to PHL with Sun Country Airlines or any other carriers, check the "Nonstop" box when looking for flights.
What is the earliest Sun Country Airlines flight from SEA to PHL?
To find the earliest departures from SEA to PHL with Sun Country Airlines, filter your results by "Morning" and "Early Morning." Choosing an early flight usually means you'll experience fewer cancellations.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does Sun Country Airlines fly into in Philadelphia?
Sun Country Airlines flights from Seattle - Tacoma Intl. Airport (SEA) to Philadelphia land at Philadelphia Intl. Airport (PHL). This is the main entry point to this city.
What kind of luggage can I take on a Sun Country Airlines flight from Seattle - Tacoma Intl. Airport (SEA) to Philadelphia Intl. Airport (PHL)?
On Sun Country Airlines, you can fly standard economy from SEA to PHL with a small personal item and 1 cabin bag. Your carry-on bag should be no bigger than 23 inches x 10 inches x 15 inches and weigh under 33 lb. Going over baggage restrictions may lead to additional charges, so read your carrier's latest policies before finalizing your booking.
Why fly with Sun Country Airlines from SEA to PHL?
Sun Country Airlines makes flying from SEA to PHL more comfortable with a rewarding loyalty program and top-tier customer service. You could even start collecting points with Sun Country Rewards. Don't forget to join Expedia's free One Key™ rewards program to earn OneKeyCash™*, which can be redeemed on future trips.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
Can I change or cancel my Sun Country Airlines flight from Seattle - Tacoma Intl. Airport (SEA) to Philadelphia Intl. Airport (PHL)?
It's generally possible to modify or cancel your flight, although additional charges may apply if your booking was made more than 24 hours ago. Need flexible options? Apply the "Changes included" or "No cancel fee" filter to find flights that won't charge extra if you need to adjust your plans. To make changes, head to "Trips," select your flight and click on "Manage Booking" for more details.

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