Domestic route
Cheap flights from Boston to Denver
Boston Logan International Airport (BOS) to Denver International Airport (DEN). 1,750 miles, 4h 15m nonstop.
BOS to DEN 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
- 4h 15mnonstop, 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
- Tuesday19% less than Friday
- Time difference
- 2h behindDenver vs Boston
Boston to Denver
Round trips from $132
Per traveler, taxes and fees included. Lowest fare we found departs Tue, Jan 5.
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 WhatsAppBoston to Denver 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 Boston to Denver
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 BOS to DEN 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 $132; September 2026 is the most expensive at $178 and up, a difference of $46 per traveler.
- Departing on a Tuesday averages 19% less than a Friday 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.
- Denver is 2 hours behind Boston. A morning departure lands in Denver with most of the day left; an evening flight arrives close to local dinner time.
Destination guide
Denver: Mile-high base camp for the Rockies
Denver International is the third-busiest airport in the country and a hub for United, Southwest and Frontier, which keeps fares low from every direction. The city itself is a lively base for the Rockies, with ski resorts 90 minutes away.
Best time to visit: June–September for hiking and Red Rocks concerts; December–March for skiing. Spring can swing from snow to 70°F in a week; September is dependably dry and golden.
Flying the other way? Denver to BostonFares, airlines and tips for DEN to BOS.Ready to compare live fares?
See every airline on BOS–DEN side by side with bags and seat rules spelled out.
Search Boston to DenverBoston to Denver: common questions
How long is the flight from Boston to Denver?
A nonstop flight from Boston (BOS) to Denver (DEN) takes about 4h 15m 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 BOS to DEN?
Delta Air Lines, United Airlines, Southwest Airlines, JetBlue, Frontier Airlines and Breeze Airways operate nonstop flights from Boston (BOS) to Denver (DEN), 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 Boston to Denver?
Over the next six months, January 2027 has the lowest round-trip fares from Boston (BOS) to Denver (DEN), starting at $132 per traveler including taxes and fees. Within any month, Tuesday departures average the lowest prices.
How far in advance should I book Boston to Denver 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 Boston and Denver?
Denver is 2 hours behind Boston. BOS is on America/New York time and DEN on America/Denver time. Departure and arrival times in search results are always shown in local time at each airport.
Related routes
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