Cheap Flights from Denver International CO to Boston Logan International MA from $120

Your route at a glance

Cheapest deal$120

Cheapest monthJanuary

Average flight duration3 hours and 56 minutes

Flight deals from Denver International to Boston Logan International

Looking for a cheap last-minute deal or the best round-trip flight from Denver International to Boston Logan International? Find the lowest prices on one-way and round-trip tickets right here.

Boston.$120 per passenger.Departing Wed, Jan 21, returning Tue, Jan 27.Round-trip flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departing from Denver International on Wed, Jan 21, arriving in Boston Logan International.Inbound indirect flight with Frontier Airlines, departing from Boston Logan International on Tue, Jan 27, arriving in Denver International.Price includes taxes and charges.From $120, select.

Boston.$126 per passenger.Departing Thu, Jan 15, returning Wed, Jan 21.Round-trip flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departing from Denver International on Thu, Jan 15, arriving in Boston Logan International.Inbound direct flight with Southwest Airlines departing from Boston Logan International on Wed, Jan 21, arriving in Denver International.Price includes taxes and charges.From $126, select.

Boston.$154 per passenger.Departing Fri, Feb 6, returning Mon, Feb 9.Round-trip flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departing from Denver International on Fri, Feb 6, arriving in Boston Logan International.Inbound indirect flight with Frontier Airlines, departing from Boston Logan International on Mon, Feb 9, arriving in Denver International.Price includes taxes and charges.From $154, select.

Boston.$158 per passenger.Departing Fri, Jan 30, returning Mon, Feb 2.Round-trip flight with Frontier Airlines and Spirit Airlines.Outbound indirect flight with Frontier Airlines, departing from Denver International on Fri, Jan 30, arriving in Boston Logan International.Inbound indirect flight with Spirit Airlines, departing from Boston Logan International on Mon, Feb 2, arriving in Denver International.Price includes taxes and charges.From $158, select.

Boston.$167 per passenger.Departing Fri, Dec 12, returning Tue, Dec 16.Round-trip flight with United.Outbound direct flight with United departing from Denver International on Fri, Dec 12, arriving in Boston Logan International.Inbound direct flight with United departing from Boston Logan International on Tue, Dec 16, arriving in Denver International.Price includes taxes and charges.From $167, select.

Boston.$183 per passenger.Departing Wed, Mar 4, returning Tue, Mar 10.Round-trip flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departing from Denver International on Wed, Mar 4, arriving in Boston Logan International.Inbound indirect flight with Frontier Airlines, departing from Boston Logan International on Tue, Mar 10, arriving in Denver International.Price includes taxes and charges.From $183, select.

Boston.$198 per passenger.Departing Fri, Jan 30, returning Mon, Feb 2.Round-trip flight with Delta.Outbound direct flight with Delta departing from Denver International on Fri, Jan 30, arriving in Boston Logan International.Inbound direct flight with Delta departing from Boston Logan International on Mon, Feb 2, arriving in Denver International.Price includes taxes and charges.From $198, select.

Boston.$198 per passenger.Departing Fri, Feb 6, returning Mon, Feb 9.Round-trip flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departing from Denver International on Fri, Feb 6, arriving in Boston Logan International.Inbound direct flight with Southwest Airlines departing from Boston Logan International on Mon, Feb 9, arriving in Denver International.Price includes taxes and charges.From $198, select.

Find the cheapest month to fly from Denver International to Boston Logan International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Denver International to Boston Logan International flights are currently cheapest in January.

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Direct flights from Denver International to Boston Logan International

Denver International to Boston Logan International: Alternative routes

Compare routes from Denver International to Boston below. You may find an airport to fly into that's cheaper, faster, or easier than Boston Logan International.

Finding cheap flights from Denver International to Boston Logan International: Frequently asked questions

How much are round-trip flights from Denver International to Boston Logan International?

The best price we found for a round-trip flight from Denver International to Boston Logan International is $120. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

How long does it take to fly from Denver International to Boston Logan International?

3 hours and 56 minutes is the average flight time from Denver International to Boston Logan International.

Which airlines fly direct from Denver International to Boston Logan International?

Southwest Airlines, United and Qatar Airways fly direct from Denver International to Boston Logan International.

How many flights are there a week from Denver International to Boston Logan International?

There are 144 flights per week flying from Denver International to Boston Logan International, as of December 2025.

When is the cheapest time to fly from Denver International to Boston Logan International?

The cheapest month to fly from Denver International to Boston Logan International is usually January.

Which upcoming date is cheapest to fly from Denver International Airport to Boston Logan International Airport on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Denver International Airport to Boston Logan International Airport on Wednesday, January 21, 2026.

Can I get a direct flight from Denver International Airport to Boston Logan International Airport?

Yes – the average flight time is 3 hours and 56 minutes.

How can I find the best flight deal to Boston Logan International?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Boston Logan International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

When is the best time to book flights to Boston?

We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to Boston is around 40 days in advance, so don’t leave your flight to the last minute.

Which is the cheapest airline to fly with from Denver International Airport to Boston Logan International?

Currently, Frontier Airlines and Southwest Airlines offer the cheapest flight tickets to Boston Logan International.

Flying from Denver International Airport (DEN) to Logan International Airport (BOS): what you need to know

Hop on a direct flight from Denver International Airport to Logan International Airport and you'll be traveling for an average of 3 hours 55 minutes.
The timezone in Boston is UTC-4, which is two hours ahead of Denver.
Take your pick of 91 weekly Denver International Airport to Logan International Airport flights. The 06:00 departure with United Airlines is the earliest flight you can take. United Airlines operates the last service of the day at 23:59.
Arriving two hours before an international flight and one hour ahead of a domestic departure are golden rules for stress-free travel. Be at the airport with enough time to board your DEN to BOS flight.
You can expect longer lines in popular months like July. Arriving up to four hours ahead of an international flight and two hours for a domestic departure will give you ample time for security and boarding.
You'll find a variety of airlines operating direct flights from Denver International Airport to Logan International Airport. When you're ready to start your Boston adventure, let one of these carriers fly you to this exciting part of United States:
JetBlue Airways is the most frequently booked airline on this route.
United Airlines leads the way as the most punctual carrier for DEN to BOS flights, with 81.13% of services reaching their destination on schedule.
We make it easy to book a flight with a stopover. To see your options for tickets from Denver International Airport to Logan International Airport, deselect 'Direct flights only.' Then, choose a flight with a stop long enough to visit your chosen city. Some great stopovers between DEN and BOS include:
- Lambert-St. Louis International Airport
- General Mitchell International Airport
- Chicago Midway International Airport

How to find the cheapest flights from Denver International Airport (DEN) to Logan International Airport (BOS)

Currently, $52 is the lowest price we've found for a one-way Denver International Airport to Logan International Airport flight. The best price for a return ticket is $120. Keep in mind that fares can change due to demand at the time of booking.
Book five months before traveling. After looking at the numbers on our calendar, this is how far you'll want to book ahead to secure cheap tickets from DEN to BOS.
April is the cheapest month for flights from Denver International Airport to Logan International Airport. If you're looking to fly at a different time of year, the 'Whole month' tool will show you the lowest prices across every month.
You don't need to check every day to see if fares have dropped when you set up a Price Alert. We'll update you as soon as the price changes on cheap flights from DEN to BOS.
Select your ideal departure and arrival times, number of stops and airlines with the filters. Alternatively, sort your results by 'Cheapest' to see the best deals on flights from Denver International Airport to Logan International Airport.

Handy information about Denver International Airport (DEN)

DEN is located at 8500 Pena Boulevard.
Denver International Airport maintains a strong on-time performance, reducing the likelihood of delays. Departures from DEN arrive at their destination as scheduled 80.23% of the time.
Denver International Airport is around 40 kilometers from central Denver. If you're ride-sharing, catching a cab or driving from the center, it'll take you 35 minutes or so to get there, depending on the traffic.
The journey on public transport usually takes 1 hour 30 minutes.
Get your flight from Denver International Airport to Logan International Airport off to a relaxed start. Only a quick drive from DEN, book a night at Baymont by Wyndham Denver International Airport and be well-rested for the trip ahead.

Arriving at Logan International Airport (BOS)

If you're arriving on a late Denver International Airport to Logan International Airport flight, nothing tops the convenience of being close to the terminal. Grab your luggage from the carousel and then be showered and snoozing not long after at one of these accommodation options near BOS:
Follow your own route with a Logan International Airport rental car. Pick up a set of wheels from Dollar, Budget or Thrifty and chase adventure across Boston and beyond.
Reserving your ride from Logan International Airport around one week in advance boosts your odds of scoring a great price.

Getting from Logan International Airport (BOS) to central Boston

The street address for BOS is One Harborside Drive.
Logan International Airport to the center of Boston has a drive time of about 10 minutes. It's approximately 5 kilometers away.
If you're traveling on public transport, expect a journey time of about 25 minutes.

When to fly to Logan International Airport (BOS)

August is the most popular month for flights from Denver International Airport to Logan International Airport. For smaller crowds, visit Boston in May.
Lock in your flight from Denver International Airport to Logan International Airport for July if you'd like to go to Boston during its warmest month. You can expect temperatures of between 16ºC (61ºF) and 29ºC (84ºF).
For cooler conditions, search for a cheap ticket from DEN to BOS in January. Temperatures average between -8ºC (18ºF) and 6ºC (43ºF) then.

Explore more of United States

New York is just one of the many cities in United States waiting to be discovered after you've seen Boston. Around 306 kilometers away to the south-west, its best attractions include Statue of Liberty, Central Park and Empire State Building.
Around 434 kilometers south-west of Boston, Philadelphia is another favorite stop in United States. No visit is complete without checking out Liberty Bell, Independence Hall and Philadelphia Museum of Art.