DEN to BOS from $201 in economy

UAUnited Airlines

Round Trip•Economy

DEN

Denver International Airport

Denver, United States

BOS

Logan International Airport

Boston, United States

$295 USD

-32%$201 USD

Verified 14 days ago

December 2026

Today

Mon

Tue

Wed

Thu

Fri

Sat

Sun

30$335 1$211 2$201 3$219 4$229 5$229 6$239 7$229 8$211 9$229 10$229 11$300 12$295 13$300 14$295 15$272 16$282 17$290 18$358 19$257 20$257 21$247 22$307 23$229 24$219 25$229 26$219 27$229 28$219 29$201 30$201 31$219 1$229 2$520 3$328

Limited Availability

16% of dates checked are available within 10% of the lowest price

Friday, December 18th, 2026

6 round-trip options

Returning

Wed, Dec 23, 2026•5 Day Trip

$518 USD

Google Flights

Returning

Fri, Dec 25, 2026•7 Day Trip

$376 USD

Google Flights

Returning

Sat, Dec 26, 2026•8 Day Trip

$667 USD

Google Flights

Returning

Sun, Dec 27, 2026•9 Day Trip

$728 USD

Google Flights

Returning

Mon, Dec 28, 2026•10 Day Trip

$523 USD

Google Flights

Returning

Wed, Dec 30, 2026•12 Day Trip

$358 USD

Google Flights

Denver (DEN) to Boston (BOS) flight deal in economy from $201

Denver International Airport

Logan International Airport

December 2026

Friday, December 18th, 2026