DEN - BOS

$125 Find Cheap Frontier Flights from Denver to Boston

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Flights Deals

Cheap Frontier Flight Deals from Denver to Boston

 
Here are some of the best deals found on KAYAK recently from Frontier for round-trip flights from Denver to Boston that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip Frontier flight deals from Denver to Boston

KAYAK's recommended round-trip Frontier deals departing in the coming months from Denver to Boston.
Discover the best prices for you by selecting your travel dates on KAYAK.
Frontier Logo
9:13 am - 12:44 amDEN-BOS
13h 31m1 stop
Frontier Logo
8:00 am - 8:18 amBOS-DEN
26h 18m1 stop
$241Frontier
Find Deal
Mon, May 19 - Wed, May 21
Frontier Logo
12:30 am - 1:05 amDEN-BOS
22h 35m1 stop
Frontier Logo
8:00 am - 8:18 amBOS-DEN
26h 18m1 stop
$248Frontier
Find Deal
Wed, May 14 - Tue, May 20
Frontier Logo
12:30 am - 12:44 amDEN-BOS
22h 14m1 stop
Frontier Logo
8:00 am - 11:29 pmBOS-DEN
17h 29m1 stop
$249Frontier
Find Deal
Mon, May 12 - Tue, May 20
Frontier Logo
12:30 am - 12:44 amDEN-BOS
22h 14m1 stop
Frontier Logo
8:00 am - 11:29 pmBOS-DEN
17h 29m1 stop
$251Frontier
Find Deal
Fri, May 16 - Tue, May 20
Frontier Logo
7:12 pm - 12:44 amDEN-BOS
27h 32m1 stop
Frontier Logo
10:14 am - 8:41 amBOS-DEN
24h 27m1 stop
$257Frontier
Find Deal
Fri, May 16 - Sun, May 18
Frontier Logo
12:30 am - 12:44 amDEN-BOS
22h 14m1 stop
Frontier Logo
8:00 am - 8:18 amBOS-DEN
26h 18m1 stop
$261Frontier
Find Deal
Sun, May 11 - Tue, May 20
Frontier Logo
12:30 am - 12:44 amDEN-BOS
22h 14m1 stop
Frontier Logo
10:14 am - 8:41 amBOS-DEN
24h 27m1 stop
$266Frontier
Find Deal
Sun, May 11 - Sun, May 18
Frontier Logo
8:10 pm - 12:07 pmDEN-BOS
13h 57m1 stop
Frontier Logo
12:52 pm - 11:04 pmBOS-DEN
12h 12m1 stop
$270Frontier
Find Deal
Sat, May 10 - Fri, May 16
Frontier Logo
6:43 pm - 12:44 amDEN-BOS
28h 01m1 stop
Frontier Logo
8:47 am - 7:21 pmBOS-DEN
12h 34m1 stop
$271Frontier
Find Deal
Mon, May 19 - Thu, May 22
Frontier Logo
12:30 am - 12:44 amDEN-BOS
22h 14m1 stop
Frontier Logo
8:00 am - 11:29 pmBOS-DEN
17h 29m1 stop
$272Frontier
Find Deal
Tue, May 13 - Tue, May 20
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Good to know

Low seasonFebruary
High seasonJuly
Cheapest flight$125
Average price round-trip$326
Best time to beat the crowds with an average 5% drop in price.
Most popular time to fly with an average 17% increase in price.
Flight from Denver to Boston
(price for this month)

When to Book Flights with Frontier from Denver to Boston

Average price per month
Flight prices as travel date approaches

FAQs for flying to Boston with Frontier

  • Is Frontier the cheapest airline to fly with from Denver to Boston?

    Yes, based on our data, Frontier is the cheapest airline to fly the route with an average price of $178 return. The next cheapest options are Breeze Airways and JetBlue, with return flights costing on average $184 and $274 respectively.

  • What is the cheapest Frontier flight from Denver to Boston?

    In the last 3 days, the lowest price for a flight with Frontier from Denver to Boston was $131 for a return flight and $108 for a one-way flight.

  • Does Frontier fly direct to Boston from Denver?

    No, Frontier does not fly the route directly.

  • What’s the cheapest day of the week to fly from Denver to Boston with Frontier?

    On average, the cheapest day of the week to fly from Denver to Boston with Frontier is Tuesday, when prices are around $51. The most expensive day is generally Thursday, where the average price is around $93.

  • What’s the cheapest month to fly from Denver to Boston with Frontier?

    The cheapest month for Frontier flights to Boston from Denver is generally March, where plane tickets cost $72 on average. If possible, try to avoid the most expensive months of July and April, where tickets cost $144 and $159 respectively.

Frontier Customer Reviews

5.9
FairBased on 3,287 verified guest reviews
6.2Boarding
4.8Food
5.6Comfort
4.6Entertainment
6.8Crew

Pros +
Cons -
  • On the ticket it said checked bag. (in 1044 reviews)

Show reviews that mention
Traveler rating:
Sort by:
V
2.0 Poor
IAH-LAS
The reps working at the airport counter were dumber than a second coat of paint.
D
2.0 Poor
BWI-ATL
Less chaos and timely departure
V
4.0 Mediocre
CLE-LAS
My costume jewelry was stolen out of my bag. Got to airport and my bag weighed 45 pounds- 5 pounds over cost me $100 Long lines in tier one. No entertainment No WiFi no free drinks or snacks
V
6.0 Okay
PHL-MIA
Not very good. Paid in excess of $400 for assigned seating for my family and that was not provided. I want that money back.
V
2.0 Poor
PDX-LAX
The seats were hard molded plastic covered in plastic vinyl. And the scam to charge people extra to sit together. Don’t they know we can just ask someone to trade seats. And watching the staff separate young children from parents… super classy. We had to guilt them into offering up our seats. This companies policies suck. Don’t give them your money.
V
2.0 Poor
LAX-PDX
The seats were awful, hard plastic covered in sheet vinyl. The airline tries to scam you into paying extra to get seat together when the flight wasn’t full. They were going to separate a family with young children but my wife who had a row to herself gave up her seat so the young mom could be with her young boys. I’m never giving this airline my money again.
V
10.0 Wonderful
LAX-DFW
It was a short flight so no food or entertainment….
N
2.0 Poor
SEA-PHX
Frontier is a scam! Do not sell this airline.
G
8.0 Very good
MCO-DEN
Seats are uncomfortable but price is good. Guess I can put up with misery for four hours.
A
10.0 Wonderful
MIA-CVG
Best ever app invented

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

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