Find flights
Deals
When to book
FAQs

Cheap flights from Boston to Denver from C$ 148

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/1. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — DEN
28 Nov — 5 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Boston to Denver

Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) to Denver (DEN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 29 October 2025.

Round-trip from

C$ 245

One-way from

C$ 148

Popular in

February

Cheapest in

January

Average price

C$ 428
Southwest
  • Southwest
  • 15/12-31/12
  • 1 total stop
  • 10h 55m total
  • Boston to Denver
Search Deals
Delta
  • Delta
  • 2/1
  • Nonstop
  • 4h 49m total
  • Boston to Denver
Search Deals
High demand for flights, 4% potential price rise
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Find flight deals from Boston to Denver

Enter your travel dates to find the best prices.

Cheapest flights from Boston to Denver
Explore the most affordable flight options available from Boston to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 October 2025.

Mon 15/126:45 a.m.BOS - DEN
Nonstop4h 40mSouthwest
Wed 31/125:15 a.m.DEN - BOS
1 stop6h 15mSouthwest
Deal found 26/10C$ 245
Thu 4/127:35 a.m.BOS - DEN
Nonstop4h 51mDelta
Wed 10/1211:36 a.m.DEN - BOS
Nonstop4h 00mDelta
Deal found 29/10C$ 247
Thu 4/124:49 p.m.BOS - DEN
Nonstop4h 51mUnited Airlines
Sat 13/125:40 p.m.DEN - BOS
Nonstop3h 56mUnited Airlines
Deal found 27/10C$ 249
Thu 4/126:45 a.m.BOS - DEN
Nonstop4h 40mSouthwest
Wed 10/1210:20 a.m.DEN - BOS
2 stops8h 45mSouthwest
Deal found 28/10C$ 251
Tue 11/117:40 a.m.BOS - DEN
Nonstop4h 57mDelta
Wed 12/1111:47 a.m.DEN - BOS
Nonstop3h 55mDelta
Deal found 28/10C$ 252
Thu 4/122:20 p.m.BOS - DEN
1 stop7h 35mSouthwest
Sat 13/128:20 a.m.DEN - BOS
1 stop5h 45mSouthwest
Deal found 27/10C$ 258
Tue 18/119:42 a.m.BOS - DEN
Nonstop4h 47mJetBlue
Tue 2/1211:21 p.m.DEN - BOS
1 stop9h 32mJetBlue
Deal found 29/10C$ 259
Wed 12/119:42 a.m.BOS - DEN
Nonstop4h 47mJetBlue
Sat 15/111:26 p.m.DEN - BOS
Nonstop3h 46mJetBlue
Deal found 29/10C$ 261
Thu 11/126:45 a.m.BOS - DEN
Nonstop4h 40mSouthwest
Thu 18/126:15 p.m.DEN - BOS
Nonstop3h 50mSouthwest
Deal found 27/10C$ 262
Wed 12/115:40 a.m.BOS - DEN
1 stop7h 25mJetBlue
Wed 12/111:24 p.m.DEN - BOS
Nonstop3h 46mJetBlue
Deal found 27/10C$ 263
Thu 4/1212:20 p.m.BOS - DEN
1 stop7h 40mSouthwest
Mon 8/128:05 a.m.DEN - BOS
2 stops6h 40mSouthwest
Deal found 27/10C$ 265
Thu 4/125:40 a.m.BOS - DEN
1 stop7h 25mJetBlue
Sat 6/1211:59 p.m.DEN - BOS
Nonstop3h 45mJetBlue
Deal found 28/10C$ 266

Cheapflights Fare Finder

 
Customize your flight search to find flights from Boston to Denver that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 29 October 2025.
Use the filters below to find and compare flights from Boston to Denver that are best for you.

Fly from

Boston

Fly to

Denver

Route

Depart

Return

Price

BostonDenver

BOS - DEN

BOSDEN

Boston Logan Intl

Thu 4/12

7:35 a.m.-10:26 a.m.

Nonstop4h 51m

Denver Intl

Sat 6/12

11:36 a.m.-5:36 p.m.

Nonstop4h 00m

C$ 247

BostonDenver

BOS - DEN

BOSDEN

Boston Logan Intl

Thu 8/1

9:35 a.m.-4:40 p.m.

1 stop9h 05m

Denver Intl

Wed 14/1

2:25 p.m.-10:05 p.m.

1 stop5h 40m

C$ 247

BostonDenver

BOS - DEN

BOSDEN

Boston Logan Intl

Fri 14/11

9:20 a.m.-12:08 p.m.

Nonstop4h 48m

Denver Intl

Sun 16/11

5:45 p.m.-11:39 p.m.

Nonstop3h 54m

C$ 252

BostonDenver

BOS - DEN

BOSDEN

Boston Logan Intl

Tue 11/11

6:45 a.m.-9:25 a.m.

Nonstop4h 40m

Denver Intl

Fri 14/11

8:55 a.m.-2:45 p.m.

Nonstop3h 50m

C$ 252

BostonDenver

BOS - DEN

BOSDEN

Boston Logan Intl

Wed 10/12

5:40 a.m.-11:05 a.m.

1 stop7h 25m

Denver Intl

Sat 13/12

11:28 p.m.-7:42 a.m.

1 stop6h 14m

C$ 258

BostonDenver

BOS - DEN

BOSDEN

Boston Logan Intl

Wed 10/12

5:40 a.m.-11:05 a.m.

1 stop7h 25m

Denver Intl

Sun 14/12

11:28 p.m.-10:47 a.m.

1 stop9h 19m

C$ 258

BostonDenver

BOS - DEN

BOSDEN

Boston Logan Intl

Fri 12/12

5:15 a.m.-10:45 a.m.

2 stops7h 30m

Denver Intl

Tue 16/12

8:05 a.m.-4:45 p.m.

2 stops6h 40m

C$ 272

BostonDenver

BOS - DEN

BOSDEN

Boston Logan Intl

Wed 3/12

8:12 p.m.-11:04 p.m.

Nonstop4h 52m

Denver Intl

Sun 7/12

11:59 p.m.-5:44 a.m.

Nonstop3h 45m

C$ 274

BostonDenver

BOS - DEN

BOSDEN

Boston Logan Intl

Thu 11/12

8:07 p.m.-10:59 p.m.

Nonstop4h 52m

Denver Intl

Sat 13/12

11:59 p.m.-5:44 a.m.

Nonstop3h 45m

C$ 274

BostonDenver

BOS - DEN

BOSDEN

Boston Logan Intl

Tue 16/12

3:40 p.m.-10:07 p.m.

1 stop8h 27m

Denver Intl

Mon 29/12

10:40 p.m.-4:27 a.m.

Nonstop3h 47m

C$ 308

Flights are sorted by cheapest round-trip flights first.

Deals found on 29/10

Showing 1-10 of 20 results
1
2

Best time to book a flight from Boston to Denver

Have a flexible travel schedule? Discover the best time to fly to Denver from Boston with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Boston to Denver

How far ahead should I book a flight from Boston to Denver?

Use this chart to determine the optimal time to book a round-trip flight from Boston to Denver. Price data was last updated on 24 October 2025.

The price you pay for your flight from Boston to Denver may vary depending on when you book. For the best chance of a lower fare, look to book 63 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Boston to Denver?

Currently, January is the cheapest month in which you can book a flight from Boston to Denver (average of C$ 137). Flying from Boston to Denver in September is currently the most expensive (average of C$ 213). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from BOS to DEN?

Find hourly flight availability from Boston to Denver. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 29 October 2025.

One of the essential ways to save on airfare from Boston to Denver is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight in the morning could potentially save you up to 51% on airfare.

Related info for your journey

Find useful and relevant information for your journey from Boston to Denver. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How popular is this Boston to Denver flight route?

    Flights from Boston Logan Intl to Denver Intl have been viewed 7 times in the past calendar month.

  • How long is the flight from Boston to Denver?

    Departing from Boston to Denver will take you 4h 48m. Airlines will cover a distance of 2813 km. Both multi-stop and direct flights can be found to your destination and back.

  • What are the most reliable airlines from Boston to Denver?

    Before booking your flight to Denver from Boston, check out the most reliable airlines to get you to your destination on time: Delta (85%), JetBlue (85%), EL AL( 80%).

  • Can I find deals for flights from Boston to Denver that include hotel bookings?

    Yes. In addition to deals on Boston to Denver flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Boston to Denver?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boston to Denver.

  • Can I find deals for business class flights from Boston to Denver?

    Yes. Cheapflights offers flight deals from Boston to Denver by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Boston to Denver?

    Currently, January is the cheapest month in which you can book a flight from Boston to Denver (average of C$ 137). Flying from Boston to Denver in September is currently the most expensive (average of C$ 213). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Denver?

Book flights to Denver if you plan to visit one of these locations
Golden
Westminster
Thornton

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Boston to Denver?

Cheapflights helps you search for flights from Boston to Denver via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Boston to Denver?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Boston to Denver.

Can Cheapflights find flights from Boston to Denver with no change fees?

Need flexible booking options for your flight to Denver from Boston? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Boston to Denver become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Denver from Boston today and book when prices fit your budget.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.