Book Cheap Flights from Boston with Alaska Airlines
Find round-trip flight deals from Boston.*
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Kona (KOA)*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: May 29, 2026 | From $139 Seen: 12 hours ago | |
| Boston (BOS) | San Diego (SAN) | One-way | Saver | Depart: Jun 9, 2026 | From $139 Seen: 11 hours ago | |
| Boston (BOS) | San Diego (SAN) | One-way | Saver | Depart: Jun 4, 2026 | From $139 Seen: 12 hours ago | |
| Boston (BOS) | San Diego (SAN) | One-way | Saver | Depart: Jun 3, 2026 | From $139 Seen: 6 hours ago | |
| Boston (BOS) | San Diego (SAN) | One-way | Saver | Depart: May 23, 2026 | From $139 Seen: 13 hours ago | |
| Boston (BOS) | San Diego (SAN) | One-way | Saver | Depart: Jun 7, 2026 | From $139 Seen: 7 hours ago | |
| Boston (BOS) | Portland (PDX) | One-way | Saver | Depart: May 30, 2026 | From $144 Seen: 13 hours ago | |
| Boston (BOS) | Portland (PDX) | One-way | Saver | Depart: May 23, 2026 | From $144 Seen: 11 hours ago | |
| Boston (BOS) | Portland (PDX) | One-way | Saver | Depart: Jun 6, 2026 | From $144 Seen: 10 hours ago | |
| Boston (BOS) | Portland (PDX) | One-way | Saver | Depart: Jun 2, 2026 | From $144 Seen: 14 hours ago | |
| Boston (BOS) | Portland (PDX) | One-way | Saver | Depart: Jun 3, 2026 | From $144 Seen: 1 hour ago | |
| Boston (BOS) | Seattle (SEA) | One-way | Saver | Depart: May 27, 2026 | From $149 Seen: 11 hours ago | |
| Boston (BOS) | Seattle (SEA) | One-way | Saver | Depart: Jun 2, 2026 | From $149 Seen: 5 hours ago | |
| Boston (BOS) | Seattle (SEA) | One-way | Saver | Depart: Sep 8, 2026 | From $149 Seen: 12 hours ago | |
| Boston (BOS) | Seattle (SEA) | One-way | Saver | Depart: Jun 17, 2026 | From $149 Seen: 16 hours ago | |
| Boston (BOS) | Portland (PDX) | One-way | Saver | Depart: Aug 26, 2026 | From $154 Seen: 9 hours ago | |
| Boston (BOS) | Los Angeles (LAX) | One-way | Saver | Depart: May 29, 2026 | From $154 Seen: 3 hours ago | |
| Boston (BOS) | Los Angeles (LAX) | One-way | Saver | Depart: Jun 1, 2026 | From $154 Seen: 2 hours ago | |
| Boston (BOS) | San Francisco (SFO) | One-way | Saver | Depart: May 30, 2026 | From $159 Seen: 12 hours ago | |
| Boston (BOS) | Seattle (SEA) | One-way | Saver | Depart: Oct 21, 2026 | From $161 Seen: 10 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.