$155 Cheap Delta flights Boston (BOS) to Tri-Cities (TRI)

View $155 flight on Tue, Oct 7, 2025Opens in a new window

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$155 Cheap Delta flights Boston (BOS) to Tri-Cities (TRI)

Prices were available within the past 7 days and start at $155 for one-way flights and $309 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sun, Sep 7 - Mon, Sep 15
BOS
Boston
TRI
Tri-Cities
$309 Roundtrip, found 4 hours ago
$309
Roundtrip
found 4 hours ago
Select Delta flight, departing Sun, Sep 7 from Boston to Tri-Cities, returning Mon, Sep 15, priced at $309 found 4 hours ago
Delta
Wed, Aug 13 - Sun, Aug 17
BOS
Boston
TRI
Tri-Cities
$312 Roundtrip, found 1 day ago
$312
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Aug 13 from Boston to Tri-Cities, returning Sun, Aug 17, priced at $312 found 1 day ago
Delta
Wed, Jul 30 - Thu, Aug 7
BOS
Boston
TRI
Tri-Cities
$324 Roundtrip, found 8 hours ago
$324
Roundtrip
found 8 hours ago
Select Delta flight, departing Wed, Jul 30 from Boston to Tri-Cities, returning Thu, Aug 7, priced at $324 found 8 hours ago
Delta
Sun, Sep 7 - Mon, Sep 15
BOS
Boston
TRI
Tri-Cities
$334 Roundtrip, found 4 hours ago
$334
Roundtrip
found 4 hours ago
Select Delta flight, departing Sun, Sep 7 from Boston to Tri-Cities, returning Mon, Sep 15, priced at $334 found 4 hours ago
Delta
Tue, Jul 22 - Tue, Jul 29
BOS
Boston
TRI
Tri-Cities
$337 Roundtrip, found 3 days ago
$337
Roundtrip
found 3 days ago
Select Delta flight, departing Tue, Jul 22 from Boston to Tri-Cities, returning Tue, Jul 29, priced at $337 found 3 days ago
Delta
Wed, Aug 13 - Sun, Aug 17
BOS
Boston
TRI
Tri-Cities
$338 Roundtrip, found 1 day ago
$338
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Aug 13 from Boston to Tri-Cities, returning Sun, Aug 17, priced at $338 found 1 day ago
Flights from Boston (BOS) to Tri-Cities (TRI)
Origin airport
Logan Intl.
Destination airport
Tri-Cities Regional
Airlines serving
American Airlines, Delta
Popular airline
American Airlines
Distance
730 mi

Frequently asked questions

How much is a Delta Air Lines flight from Logan Intl. Airport (BOS) to Tri-Cities Regional Airport (TRI)?
Grab affordable round-trip Delta Air Lines flights from $309 from BOS to TRI by organizing your results from "Price (lowest to highest)" on Expedia. Or look for deals from $155 for a one-way trip.**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 TRI with Delta Air Lines?
Delta Air Lines flights to Blountville are generally more affordable in the low-season months of January and February. Whether you're after a one-way or a return ticket, you could find a better deal then.
What is the cheapest time to book flights from Logan Intl. Airport (BOS) to Tri-Cities Regional Airport (TRI) with Delta Air Lines?
To find cheap Delta Air Lines fares from Logan Intl. Airport (BOS) to Tri-Cities Regional Airport (TRI), start searching one to three months before your intended departure. Securing domestic flights 34 to 86 days in advance could save you 25% compared to booking just 6 to 12 days ahead. The day you book can also affect the overall price. Sunday is typically the most affordable, while Monday is often the most expensive for domestic flights. You can save 6% on average by booking on a Sunday.**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 Delta Air Lines fly nonstop from Logan Intl. Airport (BOS) to Tri-Cities Regional Airport (TRI)?
To figure out if there's a direct route from BOS to TRI with Delta Air Lines or another airline, use our "Nonstop" filter when looking for flights.
What is the earliest Delta Air Lines flight from BOS to TRI?
To find the earliest departure from BOS to TRI with Delta Air Lines, filter your results by "Early Morning" and "Morning." Booking an early flight usually means cancellations are less likely.**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 Delta Air Lines fly into in Blountville?
Delta Air Lines flights from Logan Intl. Airport (BOS) to Blountville arrive at Tri-Cities Regional Airport (TRI). This is the main entry point to this destination.
Why fly with Delta Air Lines from BOS to TRI?
Jetting off from BOS to TRI with Delta Air Lines comes with a host of perks, such as a rewarding loyalty program and an excellent in-flight experience. Plus, when you book through Expedia, One Key™ members can earn OneKeyCash™* to use on select future travel purchases. That's in addition to the Delta SkyMiles points you can earn with Delta Air Lines.*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 Delta Air Lines flight from Logan Intl. Airport (BOS) to Tri-Cities Regional Airport (TRI)?
Changes are often free within 24 hours of booking, but your airline may charge a fee after that time. For more information about altering your flights, go to your "Trips," select your flight and click on "Manage Booking." If you want the flexibility to change your plans without being charged, tick the "Changes included" and "No cancel fee" filters when organizing your trip.

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