$887 Cheap Alaska Airlines flights Boston (BOS) to Unalaska (DUT)

View $887 flight on Tue, Nov 4, 2025Opens in a new window

$887 Cheap Alaska Airlines flights Boston (BOS) to Unalaska (DUT)

Prices were available within the past 7 days and start at $887 for one-way flights and $1,793 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Thu, Nov 20 - Thu, Dec 11
BOS
Boston
DUT
Unalaska
$1,793 Roundtrip, found 3 hours ago
$1,793
Roundtrip
found 3 hours ago
Select Alaska Airlines flight, departing Thu, Nov 20 from Boston to Unalaska, returning Thu, Dec 11, priced at $1,793 found 3 hours ago
Alaska Airlines
Thu, Nov 20 - Sat, Dec 6
BOS
Boston
DUT
Unalaska
$1,810 Roundtrip, found 3 hours ago
$1,810
Roundtrip
found 3 hours ago
Select Alaska Airlines flight, departing Thu, Nov 20 from Boston to Unalaska, returning Sat, Dec 6, priced at $1,810 found 3 hours ago
Alaska Airlines
Fri, Oct 31 - Wed, Nov 19
BOS
Boston
DUT
Unalaska
$1,822 Roundtrip, found 3 hours ago
$1,822
Roundtrip
found 3 hours ago
Select Alaska Airlines flight, departing Fri, Oct 31 from Boston to Unalaska, returning Wed, Nov 19, priced at $1,822 found 3 hours ago
Alaska Airlines
Sat, Nov 1 - Mon, Nov 17
BOS
Boston
DUT
Unalaska
$1,837 Roundtrip, found 3 hours ago
$1,837
Roundtrip
found 3 hours ago
Select Alaska Airlines flight, departing Sat, Nov 1 from Boston to Unalaska, returning Mon, Nov 17, priced at $1,837 found 3 hours ago
Alaska Airlines
Tue, Nov 4 - Wed, Nov 19
BOS
Boston
DUT
Unalaska
$1,840 Roundtrip, found 3 hours ago
$1,840
Roundtrip
found 3 hours ago
Select Alaska Airlines flight, departing Tue, Nov 4 from Boston to Unalaska, returning Wed, Nov 19, priced at $1,840 found 3 hours ago
Alaska Airlines
Thu, Nov 20 - Fri, Dec 12
BOS
Boston
DUT
Unalaska
$1,852 Roundtrip, found 3 hours ago
$1,852
Roundtrip
found 3 hours ago
Select Alaska Airlines flight, departing Thu, Nov 20 from Boston to Unalaska, returning Fri, Dec 12, priced at $1,852 found 3 hours ago
Flights from Boston (BOS) to Unalaska (DUT)
Origin airport
Logan Intl.
Destination airport
Unalaska
Distance
4133 mi

Frequently asked questions

How much is an Alaska Airlines flight from Logan Intl. Airport (BOS) to Unalaska Airport (DUT)?
You can discover affordable round-trip Alaska Airlines flights from $1,793 from BOS to DUT by sorting your results from "Price (lowest to highest)" on Expedia. Or search for bargains from $887 for a one-way journey.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from BOS to DUT with Alaska Airlines?
It's generally cheaper to fly from BOS to DUT with Alaska Airlines in the off-season when demand is lower. Planning your vacation outside of school breaks and major holidays can also help you discover better deals on flights.
What is the cheapest time to book flights from Logan Intl. Airport (BOS) to Unalaska Airport (DUT) with Alaska Airlines?
Look for affordable Alaska Airlines flights from Logan Intl. Airport (BOS) to Unalaska Airport (DUT) one to three months before your departure date. Travelers who book domestic flights 34 to 86 days in advance can save 25% compared to those who book just 6 to 12 days ahead. No matter the fare type and journey, the best day to book a domestic flight is usually Sunday and the most expensive day tends to be Monday. Passengers who book on a Sunday can save 6% on average compared to those who book on a Monday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does Alaska Airlines fly nonstop from Logan Intl. Airport (BOS) to Unalaska Airport (DUT)?
Simply enter your dates, press search and check "Nonstop" on Expedia to browse any direct flights from BOS to DUT with Alaska Airlines or other airlines.
What is the earliest Alaska Airlines flight from BOS to DUT?
Browse Alaska Airlines's earliest flights from BOS to DUT by using our "Morning" and "Early Morning" filters. Not only will you arrive sooner, early departures are also 20% less likely to be canceled.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does Alaska Airlines fly into in Unalaska?
Alaska Airlines flights from Logan Intl. Airport (BOS) to Unalaska touch down at Unalaska Airport (DUT). This is the main entry point to this destination.
Why fly with Alaska Airlines from BOS to DUT?
Offering an excellent in-flight experience and a rewarding loyalty program, Alaska Airlines is a favorite for many travelers heading from BOS to DUT. What's more, if you're a Mileage Plan and One Key™ member booking with Expedia, you could earn OneKeyCash™* on eligible flights on top of your airline miles, which can be spent on future getaways.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
Can I change or cancel my Alaska Airlines flight from Logan Intl. Airport (BOS) to Unalaska Airport (DUT)?
It's usually possible to reschedule or cancel your flight, although there may be additional charges if you made your booking over 24 hours ago. Need to keep your options open? Apply the "Changes included" or "No cancel fee" filter to find flights that won't penalize you if you need to alter your plans. To make modifications, go to "Trips," select your flight and click on "Manage Booking" for more information.

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*Available to One Key members.