Book Cheap Flights from Boston with Alaska Airlines
Find round-trip flight deals from Boston.*
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Lihue (LIH)*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 Boston.*
From | To | Fare Type | Dates | Price | |
|---|---|---|---|---|---|
| Boston (BOS) | San Diego (SAN) | One-way | Saver | Depart: Feb 10, 2026 | From $104 Seen: 6 hours ago | |
| Boston (BOS) | San Diego (SAN) | One-way | Saver | Depart: Feb 3, 2026 | From $104 Seen: 6 hours ago | |
| Boston (BOS) | San Diego (SAN) | One-way | Saver | Depart: Feb 4, 2026 | From $104 Seen: 6 hours ago | |
| Boston (BOS) | San Francisco (SFO) | One-way | Saver | Depart: Feb 4, 2026 | From $108 Seen: 6 hours ago | |
| Boston (BOS) | San Francisco (SFO) | One-way | Saver | Depart: Feb 3, 2026 | From $108 Seen: 6 hours ago | |
| Boston (BOS) | Portland (PDX) | One-way | Saver | Depart: May 24, 2026 | From $109 Seen: 6 hours ago | |
| Boston (BOS) | Portland (PDX) | One-way | Saver | Depart: Jun 2, 2026 | From $109 Seen: 6 hours ago | |
| Boston (BOS) | Portland (PDX) | One-way | Saver | Depart: Jun 3, 2026 | From $109 Seen: 6 hours ago | |
| Boston (BOS) | Portland (PDX) | One-way | Saver | Depart: Jun 10, 2026 | From $109 Seen: 6 hours ago | |
| Boston (BOS) | Portland (PDX) | One-way | Saver | Depart: Jun 16, 2026 | From $109 Seen: 6 hours ago | |
| Boston (BOS) | Portland (PDX) | One-way | Saver | Depart: May 2, 2026 | From $109 Seen: 6 hours ago | |
| Boston (BOS) | San Diego (SAN) | One-way | Saver | Depart: Feb 20, 2026 | From $114 Seen: 6 hours ago | |
| Boston (BOS) | San Diego (SAN) | One-way | Saver | Depart: Feb 19, 2026 | From $114 Seen: 6 hours ago | |
| Boston (BOS) | San Diego (SAN) | One-way | Saver | Depart: Feb 21, 2026 | From $114 Seen: 6 hours ago | |
| Boston (BOS) | San Francisco (SFO) | One-way | Saver | Depart: Feb 19, 2026 | From $118 Seen: 6 hours ago | |
| Boston (BOS) | San Francisco (SFO) | One-way | Saver | Depart: Feb 18, 2026 | From $118 Seen: 6 hours ago | |
| Boston (BOS) | Los Angeles (LAX) | One-way | Saver | Depart: Feb 10, 2026 | From $125 Seen: 6 hours ago | |
| Boston (BOS) | Los Angeles (LAX) | One-way | Saver | Depart: Feb 25, 2026 | From $125 Seen: 6 hours ago | |
| Boston (BOS) | Los Angeles (LAX) | One-way | Saver | Depart: Mar 3, 2026 | From $125 Seen: 6 hours ago | |
| Boston (BOS) | Los Angeles (LAX) | One-way | Saver | Depart: Mar 4, 2026 | From $125 Seen: 6 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.