Lowest Priced Flights to Philadelphia on Alaska Airlines starting at $135*

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Most popular flights to Philadelphia on Alaska Airlines.*

$
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Seattle (SEA)to

Philadelphia (PHL)
Depart: Feb 8, 2026
From
$139
Seen: 12 hours ago
One-way
Saver

Seattle (SEA)to

Philadelphia (PHL)
Depart: Feb 6, 2026
From
$139
Seen: 12 hours ago
One-way
Saver

Seattle (SEA)to

Philadelphia (PHL)
Depart: Feb 10, 2026
From
$159
Seen: 12 hours ago
One-way
Saver

Seattle (SEA)to

Philadelphia (PHL)
Depart: Feb 9, 2026
From
$209
Seen: 12 hours ago
One-way
Saver

Seattle (SEA)to

Philadelphia (PHL)
Depart: Feb 7, 2026
From
$139
Seen: 2 hours ago
One-way
Saver

Portland (PDX)to

Philadelphia (PHL)
Depart: Feb 7, 2026
From
$149
Seen: 12 hours ago
One-way
Saver

Portland (PDX)to

Philadelphia (PHL)
Depart: Feb 6, 2026
From
$169
Seen: 12 hours ago
One-way
Saver

Portland (PDX)to

Philadelphia (PHL)
Depart: Feb 8, 2026
From
$169
Seen: 12 hours ago
One-way
Saver

Portland (PDX)to

Philadelphia (PHL)
Depart: Feb 10, 2026
From
$193
Seen: 12 hours ago
One-way
Saver

Portland (PDX)to

Philadelphia (PHL)
Depart: Feb 9, 2026
From
$198
Seen: 12 hours ago
One-way
Saver

Anchorage (ANC)to

Philadelphia (PHL)
Depart: Feb 8, 2026
From
$200
Seen: 12 hours ago
One-way
Saver

Anchorage (ANC)to

Philadelphia (PHL)
Depart: Feb 7, 2026
From
$205
Seen: 12 hours ago
One-way
Saver

Anchorage (ANC)to

Philadelphia (PHL)
Depart: Feb 9, 2026
From
$271
Seen: 12 hours ago
One-way
Saver

Anchorage (ANC)to

Philadelphia (PHL)
Depart: Feb 10, 2026
From
$271
Seen: 12 hours ago
One-way
Saver

Anchorage (ANC)to

Philadelphia (PHL)
Depart: Feb 4, 2026
From
$300
Seen: 12 hours ago
One-way
Saver

Fairbanks (FAI)to

Philadelphia (PHL)
Depart: Jan 30, 2026
From
$301
Seen: 16 hours ago
One-way
Saver

San Francisco (SFO)to

Philadelphia (PHL)
Depart: Feb 8, 2026
From
$135
Seen: 12 hours ago
One-way
Saver

San Francisco (SFO)to

Philadelphia (PHL)
Depart: Feb 6, 2026
From
$140
Seen: 12 hours ago
One-way
Saver

San Francisco (SFO)to

Philadelphia (PHL)
Depart: Feb 7, 2026
From
$140
Seen: 12 hours ago
One-way
Saver

San Francisco (SFO)to

Philadelphia (PHL)
Depart: Feb 2, 2026
From
$180
Seen: 12 hours ago
One-way
Saver

*Displayed prices have been available within the past 24 hours and may not be available at the time of booking. Fares listed may be Saver fares, which is our most restrictive fare option and subject to additional restrictions. For roundtrip journeys, the price displayed—available within the past 24 hours—is the aggregate of the lowest available fare each way. Additional baggage charges and fees for optional products and services may apply. Other terms and conditions may apply.

Top offers for Philadelphia one-way flights.*

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Top offers for Philadelphia one-way flights.*
From
To
Fare Type
Dates
Price
San Francisco (SFO)Philadelphia (PHL)One-way
|
Saver
Depart: May 11, 2026

From

$135

Seen: 12 hours ago

San Francisco (SFO)Philadelphia (PHL)One-way
|
Saver
Depart: May 27, 2026

From

$135

Seen: 12 hours ago

San Francisco (SFO)Philadelphia (PHL)One-way
|
Saver
Depart: May 4, 2026

From

$135

Seen: 12 hours ago

San Francisco (SFO)Philadelphia (PHL)One-way
|
Saver
Depart: Jun 3, 2026

From

$135

Seen: 12 hours ago

San Francisco (SFO)Philadelphia (PHL)One-way
|
Saver
Depart: May 12, 2026

From

$135

Seen: 12 hours ago

Seattle (SEA)Philadelphia (PHL)One-way
|
Saver
Depart: Apr 19, 2026

From

$139

Seen: 12 hours ago

Seattle (SEA)Philadelphia (PHL)One-way
|
Saver
Depart: Apr 17, 2026

From

$139

Seen: 12 hours ago

Seattle (SEA)Philadelphia (PHL)One-way
|
Saver
Depart: May 19, 2026

From

$139

Seen: 12 hours ago

Seattle (SEA)Philadelphia (PHL)One-way
|
Saver
Depart: Apr 18, 2026

From

$139

Seen: 12 hours ago

Seattle (SEA)Philadelphia (PHL)One-way
|
Saver
Depart: Apr 28, 2026

From

$139

Seen: 12 hours ago

Seattle (SEA)Philadelphia (PHL)One-way
|
Saver
Depart: Apr 30, 2026

From

$139

Seen: 12 hours ago

San Francisco (SFO)Philadelphia (PHL)One-way
|
Saver
Depart: Apr 14, 2026

From

$140

Seen: 12 hours ago

Portland (PDX)Philadelphia (PHL)One-way
|
Saver
Depart: Feb 28, 2026

From

$149

Seen: 12 hours ago

Portland (PDX)Philadelphia (PHL)One-way
|
Saver
Depart: Mar 3, 2026

From

$149

Seen: 12 hours ago

Portland (PDX)Philadelphia (PHL)One-way
|
Saver
Depart: Apr 8, 2026

From

$149

Seen: 12 hours ago

Portland (PDX)Philadelphia (PHL)One-way
|
Saver
Depart: May 13, 2026

From

$149

Seen: 12 hours ago

Portland (PDX)Philadelphia (PHL)One-way
|
Saver
Depart: Mar 31, 2026

From

$149

Seen: 12 hours ago

Portland (PDX)Philadelphia (PHL)One-way
|
Saver
Depart: Apr 1, 2026

From

$149

Seen: 12 hours ago

Los Angeles (LAX)Philadelphia (PHL)One-way
|
Saver
Depart: May 6, 2026

From

$149

Seen: 12 hours ago

Los Angeles (LAX)Philadelphia (PHL)One-way
|
Saver
Depart: Apr 7, 2026

From

$149

Seen: 12 hours ago

*Displayed prices have been available within the past 24 hours and may not be available at the time of booking. Fares listed may be Saver fares, which is our most restrictive fare option and subject to additional restrictions. For roundtrip journeys, the price displayed—available within the past 24 hours—is the aggregate of the lowest available fare each way. Additional baggage charges and fees for optional products and services may apply. Other terms and conditions may apply.

Plan a trip to Philadelphia

Called the "New Athens" by Benjamin Franklin, Philadelphia is the nation's first capital, the place where the Declaration of Independence, the US Constitution, and the Bill of Rights were written and signed. Learn all about its rich history at Independence Hall in the Old City district, open 365 days a year. Weave your way through small streets to experience four centuries of architecture alongside new art galleries and cozy cafes. You'll still feel the original European aesthetic as you walk through the Old City historic quarter. Hear stories on a backstage tour at the Walnut Street Theater, built in 1809 and the oldest theatre in the country. In the late 17th century, William Penn organized fishermen, farmers, and hunters to sell their wares - this grew into the 80-merchant Reading Terminal Market. For live music in a small concert setting, explore Theater of the Living Arts just about any night of the week. Discover the creative design shops of the outrageous Fishtown neighborhood - open gallery nights along Frankford Avenue are free on first Fridays of the month.

View airport information for Philadelphia (PHL)