Alaska Airlines Flights from Boston to San Francisco
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1 Passenger
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One-way low-fare flights Boston to San Francisco.*
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From | To | Fare Type | Dates | Price | |
|---|---|---|---|---|---|
| Boston (BOS) | San Francisco (SFO) | One-way | Saver | Depart: Nov 18, 2026 | From $154 Seen: 14 hours ago | |
| Boston (BOS) | San Francisco (SFO) | One-way | Saver | Depart: Oct 27, 2026 | From $154 Seen: 14 hours ago | |
| Boston (BOS) | San Francisco (SFO) | One-way | Saver | Depart: Nov 7, 2026 | From $154 Seen: 14 hours ago | |
| Boston (BOS) | San Francisco (SFO) | One-way | Saver | Depart: Nov 14, 2026 | From $154 Seen: 14 hours ago | |
| Boston (BOS) | San Francisco (SFO) | One-way | Saver | Depart: Nov 17, 2026 | From $154 Seen: 14 hours ago | |
| Boston (BOS) | San Francisco (SFO) | One-way | Saver | Depart: Oct 31, 2026 | From $154 Seen: 14 hours ago | |
| Boston (BOS) | San Francisco (SFO) | One-way | Saver | Depart: Sep 15, 2026 | From $154 Seen: 14 hours ago | |
| Boston (BOS) | San Francisco (SFO) | One-way | Saver | Depart: Aug 25, 2026 | From $164 Seen: 14 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.