Domestic route
Cheap flights from Denver to Boston
Denver International Airport (DEN) to Boston Logan International Airport (BOS). 1,750 miles, 3h 45m nonstop.
DEN to BOS at a glance
Computed from airline schedules and the fares we track for this route. Refreshed several times a day.
- Distance
- 1,750 milesgreat-circle
- Typical flight time
- 3h 45mnonstop, gate to gate
- Nonstop airlines
- DLUAWNB66 airlinesDelta, United, Southwest
- Nonstop flights per day
- 27all airlines combined
- Cheapest month
- January 2027over the next six months
- Best day to fly
- Tuesday20% less than Sunday
- Time difference
- 2h aheadBoston vs Denver
Denver to Boston
Round trips from $135
Per traveler, taxes and fees included. Lowest fare we found departs Tue, Jan 26.
Cheapest month: January 2027
See fares on these datesLock any fare free — pay only when you accept your last-minute deal
Or ask an agent on WhatsAppDenver to Boston fares by month
Lowest round-trip economy fare per traveler in each of the next six months, taxes and fees included. Select a month to search that date.
Airlines flying Denver to Boston
6 airlines fly nonstop with 27 departures a day combined, plus 3 more with one stop.
- B6JetBlueNonstop · 7 flights a day · first checked bag from $40
- DLDelta Air LinesSkyTeamNonstop · 5 flights a day · first checked bag from $35
- UAUnited AirlinesStar AllianceNonstop · 5 flights a day · first checked bag from $40
- F9Frontier AirlinesLow-costNonstop · 4 flights a day · first checked bag from $55
- WNSouthwest AirlinesLow-costNonstop · 4 flights a day · first checked bag from $35
- MXBreeze AirwaysLow-costNonstop · 2 flights a day · first checked bag from $45
- AAAmerican AirlinesoneworldConnecting via DFW, CLT, ORD, PHL, DCA, JFK · first checked bag from $40
- NKSpirit AirlinesLow-costConnecting via DTW, MCO, DFW, ATL, IAH · first checked bag from $55
- SYSun Country AirlinesLow-costConnecting via MSP · first checked bag from $45
Connecting options
Hubs where one airline can carry you on both legs, most choices first.
- Dallas (DFW)AANK2 airlines
- Charlotte (CLT)AA1 airline
- Chicago (ORD)AA1 airline
- Philadelphia (PHL)AA1 airline
- Washington (DCA)AA1 airline
Tips for this route
- Delta, United, Southwest and JetBlue all fly DEN to BOS nonstop, so compare the total with bags before picking the lowest base fare: the difference between a basic and a standard economy ticket is often less than one checked bag each way.
- January 2027 is the cheapest month to fly over the next six months, with round trips from $135; September 2026 is the most expensive at $181 and up, a difference of $46 per traveler.
- Departing on a Tuesday averages 20% less than a Sunday on this route. If your dates are flexible, shift the outbound by a day or two and check the calendar view before you book.
- Fares on this route are usually lowest 4 to 8 weeks before departure and rise sharply inside two weeks.
- Boston is 2 hours ahead of Denver. Expect to lose 2 hours on the clock heading east, so an overnight or late-afternoon departure tends to arrive at a more usable hour.
Destination guide
Boston: Revolutionary history in a walkable harbor city
Boston is compact, historic and easy: Logan Airport is minutes from downtown, the Freedom Trail links the sights, and fall in New England starts here. JetBlue and Delta hubs mean strong fare competition.
Best time to visit: Late September–October for foliage and crisp weather, May–June for spring. Summer is warm and busy; winter is cold but has the lowest prices.
Flying the other way? Boston to DenverFares, airlines and tips for BOS to DEN.Ready to compare live fares?
See every airline on DEN–BOS side by side with bags and seat rules spelled out.
Search Denver to BostonDenver to Boston: common questions
How long is the flight from Denver to Boston?
A nonstop flight from Denver (DEN) to Boston (BOS) takes about 3h 45m gate to gate, covering 1,750 miles. Connecting itineraries add the layover, typically 1 to 3 hours more in total.
Which airlines fly nonstop from DEN to BOS?
Delta Air Lines, United Airlines, Southwest Airlines, JetBlue, Frontier Airlines and Breeze Airways operate nonstop flights from Denver (DEN) to Boston (BOS), with 27 nonstop departures a day between them. One-stop options connect through DFW, CLT and ORD.
What is the cheapest month to fly from Denver to Boston?
Over the next six months, January 2027 has the lowest round-trip fares from Denver (DEN) to Boston (BOS), starting at $135 per traveler including taxes and fees. Within any month, Tuesday departures average the lowest prices.
How far in advance should I book Denver to Boston flights?
Fares on this route are usually lowest 4 to 8 weeks before departure and rise sharply inside two weeks. Air1 Tickets includes free cancellation within 24 hours of booking on every fare, so you can lock in a good price and keep looking.
What is the time difference between Denver and Boston?
Boston is 2 hours ahead of Denver. DEN is on America/Denver time and BOS on America/New York time. Departure and arrival times in search results are always shown in local time at each airport.
Related routes
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