Book Cheap Flights from Boston with Alaska Airlines
expand_more
1 Passenger
expand_moretoday
today
Find round-trip flight deals from Boston.*
flight_takeoff
flight_land
Boston (BOS)to
Seattle (SEA)Nov 14, 2026 - Nov 15, 2026
From
$327
Seen: 15 hours ago
Round-trip
Saver
Boston (BOS)to
Portland (PDX)Sep 5, 2026 - Sep 6, 2026
From
$357
Seen: 15 hours ago
Round-trip
Saver
Boston (BOS)to
San Diego (SAN)Dec 5, 2026 - Dec 8, 2026
From
$237
Seen: 15 hours ago
Round-trip
Saver
Boston (BOS)to
Honolulu (HNL)Oct 28, 2026 - Nov 6, 2026
From
$645
Seen: 1 hour ago
Round-trip
Saver
Boston (BOS)to
Anchorage (ANC)Sep 24, 2026 - Sep 27, 2026
From
$647
Seen: 11 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 2, 2026 - Sep 16, 2026
From
$338
Seen: 15 hours ago
Round-trip
Saver
Boston (BOS)to
Maui (OGG)Nov 4, 2026 - Nov 13, 2026
From
$596
Seen: 2 minutes ago
Round-trip
Saver
Boston (BOS)to
Kona (KOA)Nov 21, 2026 - Nov 23, 2026
From
$839
Seen: 4 hours ago
Round-trip
Saver
Boston (BOS)to
Phoenix (PHX)Dec 3, 2026 - Dec 7, 2026
From
$462
Seen: 12 hours ago
Round-trip
Saver
Boston (BOS)to
Vancouver (YVR)Sep 25, 2026 - Sep 29, 2026
From
$587
Seen: 8 hours ago
Round-trip
Saver
Boston (BOS)to
Fairbanks (FAI)Sep 17, 2026 - Sep 21, 2026
From
$616
Seen: 9 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.*
flight_takeoff
flight_land
sortkeyboard_arrow_down
From | To | Fare Type | Dates | Price | |
|---|---|---|---|---|---|
| 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: 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: Sep 22, 2026 | From $119 Seen: 15 hours ago | |
| Boston (BOS) | San Diego (SAN) | One-way | Saver | Depart: Nov 4, 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 Francisco (SFO) | One-way | Saver | Depart: Sep 15, 2026 | From $159 Seen: 15 hours ago | |
| Boston (BOS) | San Francisco (SFO) | One-way | Saver | Depart: Sep 22, 2026 | From $159 Seen: 15 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 16, 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.