Book Cheap Flights from Boston with Alaska Airlines
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Find round-trip flight deals from Boston.*
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Boston (BOS)to
Seattle (SEA)Sep 16, 2026 - Sep 19, 2026
From
$327
Seen: 15 hours ago
Round-trip
Saver
Boston (BOS)to
Portland (PDX)Sep 29, 2026 - Sep 29, 2026
From
$287
Seen: 7 hours ago
Round-trip
Saver
Boston (BOS)to
San Diego (SAN)Oct 31, 2026 - Nov 14, 2026
From
$237
Seen: 15 hours ago
Round-trip
Saver
Boston (BOS)to
Honolulu (HNL)Sep 18, 2026 - Oct 2, 2026
From
$662
Seen: 14 hours ago
Round-trip
Saver
Boston (BOS)to
Anchorage (ANC)Aug 29, 2026 - Sep 5, 2026
From
$647
Seen: 5 hours ago
Round-trip
Saver
Boston (BOS)to
San Francisco (SFO)Oct 27, 2026 - Oct 28, 2026
From
$317
Seen: 15 hours ago
Round-trip
Saver
Boston (BOS)to
Los Angeles (LAX)Sep 1, 2026 - Sep 15, 2026
From
$338
Seen: 15 hours ago
Round-trip
Saver
Boston (BOS)to
Fairbanks (FAI)Sep 14, 2026 - Sep 21, 2026
From
$652
Seen: 15 hours ago
Round-trip
Saver
Boston (BOS)to
San Jose (SJC)Aug 14, 2026 - Aug 26, 2026
From
$493
Seen: 6 hours ago
Round-trip
Saver
Boston (BOS)to
Kona (KOA)Oct 2, 2026 - Oct 12, 2026
From
$726
Seen: 5 hours ago
Round-trip
Saver
Boston (BOS)to
Tokyo (NRT)Dec 2, 2026 - Dec 16, 2026
From
$1,129
Seen: 5 hours ago
Round-trip
Saver
Boston (BOS)to
Spokane (GEG)Sep 5, 2026 - Sep 6, 2026
From
$352
Seen: 15 hours ago
Round-trip
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.
One-way flight deals from Boston.*
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From | To | Fare Type | Dates | Price | |
|---|---|---|---|---|---|
| Boston (BOS) | San Diego (SAN) | One-way | Saver | Depart: Nov 18, 2026 | From $119 Seen: 15 hours ago | |
| Boston (BOS) | San Diego (SAN) | One-way | Saver | Depart: Dec 12, 2026 | From $119 Seen: 15 hours ago | |
| Boston (BOS) | San Diego (SAN) | One-way | Saver | Depart: Dec 15, 2026 | From $119 Seen: 15 hours ago | |
| Boston (BOS) | San Diego (SAN) | One-way | Saver | Depart: Sep 12, 2026 | From $119 Seen: 15 hours ago | |
| Boston (BOS) | San Diego (SAN) | One-way | Saver | Depart: Sep 22, 2026 | From $119 Seen: 15 hours ago | |
| Boston (BOS) | San Diego (SAN) | One-way | Saver | Depart: Sep 29, 2026 | From $119 Seen: 15 hours ago | |
| Boston (BOS) | San Jose (SJC) | One-way | Saver | Depart: Sep 29, 2026 | From $158 Seen: 3 hours ago | |
| Boston (BOS) | San Francisco (SFO) | One-way | Saver | Depart: Sep 12, 2026 | From $159 Seen: 15 hours ago | |
| Boston (BOS) | San Francisco (SFO) | One-way | Saver | Depart: Sep 15, 2026 | From $159 Seen: 15 hours ago | |
| Boston (BOS) | San Francisco (SFO) | One-way | Saver | Depart: Nov 14, 2026 | From $159 Seen: 15 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.