Denver (DEN) to Boston (BOS) flight deal from $167 USD in economy class

UAUnited Airlines

Round Trip•Economy

DEN

Denver International Airport

Denver, United States

BOS

Logan International Airport

Boston, United States

$304 USD

-45%$167 USD

Verified Nov 4, 2025 at 4:07 AM

December 2025

Today

Mon

Tue

Wed

Thu

Fri

Sat

Sun

1$466 2$167 3$187 4$187 5$167 6$167 7$167 8$167 9$167 10$167 11$187 12$167 13$167 14$189 15$189 16$189 17$227 18$197 19$260 20$240 21$199 22$259 23$237 24$167 25$167 26$240 27$283 28$217 29$217 30$194 31$172 1 2 3 4

Extremely Rare Availability

4% of dates checked are available within 10% of the lowest price

Wednesday, December 17th, 2025

10 round-trip options

Returning

Mon, Dec 22, 2025•5 Day Trip

$290 USD

Google Flights

Returning

Tue, Dec 23, 2025•6 Day Trip

$227 USD

Google Flights

Returning

Wed, Dec 24, 2025•7 Day Trip

$327 USD

Google Flights

Returning

Thu, Dec 25, 2025•8 Day Trip

$370 USD

Google Flights

Returning

Fri, Dec 26, 2025•9 Day Trip

$534 USD

Google Flights

Returning

Sat, Dec 27, 2025•10 Day Trip

$720 USD

Google Flights

Returning

Sun, Dec 28, 2025•11 Day Trip

$569 USD

Google Flights

Returning

Mon, Dec 29, 2025•12 Day Trip

$510 USD

Google Flights

Returning

Tue, Dec 30, 2025•13 Day Trip

$284 USD

Google Flights

Returning

Wed, Dec 31, 2025•14 Day Trip

$285 USD

Google Flights