United States · 1,749 miles (2,815 km)

Denver (DEN) to Boston (BOS) flights

4 airlines fly nonstop from Denver (DEN) to Boston (BOS): Delta Air Lines, JetBlue Airways, Southwest Airlines and United Airlines. The two airports are 1,749 miles (2,815 km) apart. Delta Air Lines is in SkyTeam and United Airlines is in Star Alliance. There are also 68 ways to fly it with one stop, through Des Moines, Chicago and Detroit and more.

Airlines flying nonstop from DEN to BOS

Book DEN to BOS with points

Loyalty programs that can book at least one of the nonstop airlines, from the Award Booking Guide.

DEN to BOS with one stop

68 connections, most direct first. 2-stop routings and flight times are in Routes with Pro.

  • Via Des Moines (DSM)Frontier Airlines, United Airlines and 1 more, then Allegiant Air
    Frontier Airlines logo
    United Airlines logo
    Southwest Airlines logo
    Allegiant Air logo
  • Via Chicago (ORD)American Airlines and United Airlines the whole way
    American Airlines logo
    Frontier Airlines logo
    United Airlines logo
    American Airlines logo
    JetBlue Airways logo
    United Airlines logo
    +1
  • Via Detroit (DTW)Delta Air Lines the whole way
    Delta Air Lines logo
    Frontier Airlines logo
    United Airlines logo
    +1
    JetBlue Airways logo
    Delta Air Lines logo
  • Via Grand Rapids (GRR)Frontier Airlines, United Airlines and 1 more, then Allegiant Air
    Frontier Airlines logo
    United Airlines logo
    Southwest Airlines logo
    Allegiant Air logo
  • Via Buffalo (BUF)Southwest Airlines and United Airlines, then JetBlue Airways, Delta Air Lines and 1 more
    Southwest Airlines logo
    United Airlines logo
    JetBlue Airways logo
    Delta Air Lines logo
    American Airlines logo
  • Via Milwaukee (MKE)Southwest Airlines the whole way
    United Airlines logo
    Southwest Airlines logo
    Delta Air Lines logo
    Southwest Airlines logo
    JetBlue Airways logo
    +1
  • Via Chicago (MDW)Southwest Airlines the whole way
    Southwest Airlines logo
    Southwest Airlines logo
  • Via Syracuse (SYR)United Airlines, then American Airlines and JetBlue Airways
    United Airlines logo
    American Airlines logo
    JetBlue Airways logo
  • Via Madison (MSN)Frontier Airlines and United Airlines, then Delta Air Lines and American Airlines
    Frontier Airlines logo
    United Airlines logo
    Delta Air Lines logo
    American Airlines logo
  • Via Toronto (YYZ)Air Canada the whole way
    Air Canada logo
    United Airlines logo
    Air Canada logo
    Porter Airlines logo
  • Via Cleveland (CLE)Frontier Airlines, United Airlines and 1 more, then JetBlue Airways and Delta Air Lines
    Frontier Airlines logo
    United Airlines logo
    Southwest Airlines logo
    JetBlue Airways logo
    Delta Air Lines logo
  • Via Traverse City (TVC)United Airlines, then American Airlines, Delta Air Lines and 1 more
    United Airlines logo
    American Airlines logo
    Delta Air Lines logo
    JetBlue Airways logo
  • Via Pittsburgh (PIT)United Airlines and Southwest Airlines, then JetBlue Airways and Delta Air Lines
    United Airlines logo
    Southwest Airlines logo
    JetBlue Airways logo
    Delta Air Lines logo
  • Via Kansas City (MCI)Southwest Airlines and American Airlines the whole way
    Frontier Airlines logo
    United Airlines logo
    Southwest Airlines logo
    +1
    Delta Air Lines logo
    Southwest Airlines logo
    American Airlines logo
  • Via Indianapolis (IND)Frontier Airlines, United Airlines and 1 more, then Delta Air Lines, American Airlines and 1 more
    Frontier Airlines logo
    United Airlines logo
    Southwest Airlines logo
    Delta Air Lines logo
    American Airlines logo
    Allegiant Air logo
See all 68 in Routes

DEN to BOS: common questions

Which airlines fly nonstop from DEN to BOS?

Delta Air Lines (SkyTeam), JetBlue Airways, Southwest Airlines and United Airlines (Star Alliance) fly nonstop from Denver (DEN) to Boston (BOS).

How far is Denver from Boston by plane?

Denver (DEN) and Boston (BOS) are 1,749 miles (2,815 km) apart along the great circle, the shortest path a flight can take. Connections add distance on top.

Which points programs can book DEN to BOS award flights?

21 programs can book at least one of the nonstop airlines: JetBlue TrueBlue, Singapore Airlines KrisFlyer, Aeromexico Rewards, Air Canada Aeroplan, Air France-KLM Flying Blue, Air New Zealand Airpoints, ANA Mileage Club, Avianca LifeMiles and 13 more. Which flights each can book depends on its partners, so check the airline before you transfer points.

How many miles does DEN to BOS cost?

It depends on the program: each prices the route from its own chart or dynamically. The Award Flight Pricer compares 30+ programs for DEN to BOS with taxes and fees.

Where can I connect between Denver and Boston?

The most direct connections are through Des Moines (DSM), Chicago (ORD), Detroit (DTW), Grand Rapids (GRR) and Buffalo (BUF). On 36 of them the same airline flies both flights, for example American Airlines through Chicago.

More routes

Routes are scheduled nonstop flights. The route data is refreshed monthly; this list was last checked November 11, 2026. Seasonal routes and new launches can be missing or end early, so confirm with the airline before you book. Distances are great-circle, the shortest path between the two airports.