Book Cheap Flights from Philadelphia with Alaska Airlines
Find round-trip flight deals from Philadelphia.*
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Phoenix (PHX)*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.
One-way flight deals from Philadelphia.*
From | To | Fare Type | Dates | Price | |
|---|---|---|---|---|---|
| Philadelphia (PHL) | San Jose (SJC) | One-way | Saver | Depart: Aug 19, 2026 | From $156 Seen: 17 hours ago | |
| Philadelphia (PHL) | San Jose (SJC) | One-way | Saver | Depart: Aug 24, 2026 | From $156 Seen: 17 hours ago | |
| Philadelphia (PHL) | San Jose (SJC) | One-way | Saver | Depart: Aug 26, 2026 | From $156 Seen: 17 hours ago | |
| Philadelphia (PHL) | San Jose (SJC) | One-way | Saver | Depart: Sep 5, 2026 | From $156 Seen: 17 hours ago | |
| Philadelphia (PHL) | San Jose (SJC) | One-way | Saver | Depart: Sep 8, 2026 | From $156 Seen: 17 hours ago | |
| Philadelphia (PHL) | San Jose (SJC) | One-way | Saver | Depart: Sep 9, 2026 | From $156 Seen: 17 hours ago | |
| Philadelphia (PHL) | San Francisco (SFO) | One-way | Saver | Depart: Sep 2, 2026 | From $165 Seen: 17 hours ago | |
| Philadelphia (PHL) | San Francisco (SFO) | One-way | Saver | Depart: Sep 26, 2026 | From $165 Seen: 17 hours ago | |
| Philadelphia (PHL) | San Francisco (SFO) | One-way | Saver | Depart: Sep 29, 2026 | From $165 Seen: 17 hours ago | |
| Philadelphia (PHL) | San Francisco (SFO) | One-way | Saver | Depart: Sep 30, 2026 | From $165 Seen: 17 hours ago | |
| Philadelphia (PHL) | San Francisco (SFO) | One-way | Saver | Depart: Oct 7, 2026 | From $165 Seen: 17 hours ago | |
| Philadelphia (PHL) | San Francisco (SFO) | One-way | Saver | Depart: Sep 1, 2026 | From $165 Seen: 17 hours ago | |
| Philadelphia (PHL) | Seattle (SEA) | One-way | Saver | Depart: Aug 12, 2026 | From $175 Seen: 17 hours ago | |
| Philadelphia (PHL) | Seattle (SEA) | One-way | Saver | Depart: Aug 17, 2026 | From $175 Seen: 17 hours ago | |
| Philadelphia (PHL) | Seattle (SEA) | One-way | Saver | Depart: Aug 19, 2026 | From $175 Seen: 17 hours ago | |
| Philadelphia (PHL) | Seattle (SEA) | One-way | Saver | Depart: Aug 24, 2026 | From $175 Seen: 17 hours ago | |
| Philadelphia (PHL) | Seattle (SEA) | One-way | Saver | Depart: Aug 25, 2026 | From $175 Seen: 17 hours ago | |
| Philadelphia (PHL) | Seattle (SEA) | One-way | Saver | Depart: Aug 30, 2026 | From $175 Seen: 17 hours ago | |
| Philadelphia (PHL) | Oakland (OAK) | One-way | Saver | Depart: Oct 6, 2026 | From $175 Seen: 17 hours ago | |
| Philadelphia (PHL) | Oakland (OAK) | One-way | Saver | Depart: Sep 8, 2026 | From $180 Seen: 17 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.