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CA $187 Cheap Flights from Denver (DEN) to Boise (BOI)

View CA $187 flight on Fri, Sep 11, 2026Opens in a new window

Popular airlines from Denver International Airport (DEN) to Boise Airport (BOI)

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Cheap flights from Denver (DEN) to Boise (BOI)

Prices were available within the past 7 days and start at CA $187 for one-way flights and CA $374 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Thu, Sep 10 - Mon, Sep 14
DEN
Denver
BOI
Boise
CA $374 Roundtrip, found 4 days ago
CA $374
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Thu, Sep 10 from Denver to Boise, returning Mon, Sep 14, priced at CA $374 found 4 days ago
Alaska Airlines
Fri, Sep 11 - Wed, Sep 16
DEN
Denver
BOI
Boise
CA $393 Roundtrip, found 4 days ago
CA $393
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Fri, Sep 11 from Denver to Boise, returning Wed, Sep 16, priced at CA $393 found 4 days ago
Alaska Airlines
Fri, Sep 11 - Wed, Sep 16
DEN
Denver
BOI
Boise
CA $394 Roundtrip, found 4 days ago
CA $394
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Fri, Sep 11 from Denver to Boise, returning Wed, Sep 16, priced at CA $394 found 4 days ago
Alaska Airlines
Thu, Sep 10 - Mon, Sep 14
DEN
Denver
BOI
Boise
CA $402 Roundtrip, found 4 days ago
CA $402
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Thu, Sep 10 from Denver to Boise, returning Mon, Sep 14, priced at CA $402 found 4 days ago
Alaska Airlines
Thu, Sep 10 - Mon, Sep 14
DEN
Denver
BOI
Boise
CA $414 Roundtrip, found 4 days ago
CA $414
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Thu, Sep 10 from Denver to Boise, returning Mon, Sep 14, priced at CA $414 found 4 days ago
Alaska Airlines
Fri, Sep 11 - Wed, Sep 16
DEN
Denver
BOI
Boise
CA $421 Roundtrip, found 4 days ago
CA $421
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Fri, Sep 11 from Denver to Boise, returning Wed, Sep 16, priced at CA $421 found 4 days ago
Alaska Airlines
Fri, Sep 25 - Sun, Sep 27
DEN
Denver
BOI
Boise
CA $428 Roundtrip, found 5 days ago
CA $428
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Fri, Sep 25 from Denver to Boise, returning Sun, Sep 27, priced at CA $428 found 5 days ago
Delta
Fri, Sep 25 - Sun, Sep 27
DEN
Denver
BOI
Boise
CA $429 Roundtrip, found 5 days ago
CA $429
Roundtrip
found 5 days ago
Select Delta flight, departing Fri, Sep 25 from Denver to Boise, returning Sun, Sep 27, priced at CA $429 found 5 days ago
Alaska Airlines
Fri, Sep 11 - Wed, Sep 16
DEN
Denver
BOI
Boise
CA $442 Roundtrip, found 4 days ago
CA $442
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Fri, Sep 11 from Denver to Boise, returning Wed, Sep 16, priced at CA $442 found 4 days ago

Find the cheapest month to fly from Denver (DEN) to Boise (BOI)

February is typically the cheapest month to fly

From CA $88 - CA $291 per traveller.

Frequently asked questions

How much does a flight from Denver, CO (DEN-Denver Intl.) to Boise, ID (BOI) cost?
You can find cheap one-way flights from CA $187 and cheap return flights from CA $374 DEN to BOI with Expedia. Return flights often range between CA$447 and CA$1305. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when DEN to BOI ticket fares go up or down.
What is the cheapest month to fly from Denver, CO (DEN) to Boise, ID (BOI)?
The cheapest months to fly from Denver, CO (DEN) to Boise, ID (BOI) are typically during off-peak season when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you are able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Denver, CO (DEN-Denver Intl.) to Boise, ID (BOI)?
There are 3 airlines offering direct flights from Denver, CO (DEN-Denver Intl.) to Boise, ID (BOI). Here are the top carriers:
  • United operates 38 direct flights from Denver, CO (DEN-Denver Intl.) to Boise, ID (BOI) every week.
  • Southwest Airlines operates 21 direct flights from Denver, CO (DEN-Denver Intl.) to Boise, ID (BOI) every week.
  • Frontier Airlines operates 7 direct flights from Denver, CO (DEN-Denver Intl.) to Boise, ID (BOI) every week.
What is the cheapest airline that flies from Denver, CO (DEN-Denver Intl.) to Boise, ID (BOI)?
Frontier Airlines is one of the cheapest airlines offering nonstop return flights from Denver, CO (DEN-Denver Intl.) to Boise, ID (BOI), with tickets starting from around CA$80 for flights that can be booked for departure within the next year. United is one of the cheapest airlines offering connecting return flights on this route, with tickets starting from around CA$408. These prices are per adult for economy/coach class. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.
How do I find cheap flights from Denver, CO (DEN) to Boise, ID (BOI)?
To find a cheap flight from Denver, CO (DEN) to Boise, ID (BOI), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Denver, CO (DEN-Denver Intl.) to Boise, ID (BOI)?
The best airline to fly with from Denver, CO (DEN-Denver Intl.) to Boise, ID (BOI) will differ from traveler to traveler. If you like to fly early, United offers early morning flights. If price is the most important factor, Frontier Airlines typically offers the lowest fares. Southwest Airlines offers the most daily flights from Denver, CO (DEN-Denver Intl.) to Boise, ID (BOI), which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Denver, CO (DEN-Denver Intl.) to Boise, ID (BOI)?
The cheapest months to fly from Denver International Airport (DEN) to Boise (BOI) are typically April and August, with return flights averaging around CA$371. The most popular months for this route are October and September, which means you'll find plenty of flight options during these times. While there isn't a single month that is both the cheapest and most popular, you can balance cost and availability by considering these periods. For instance, August offers good value and is still a popular time for travel, giving you a good selection of flights.
How many flights per day from Denver, CO (DEN-Denver Intl.) to Boise, ID (BOI)?
You'll find around 9 nonstop flights per day from Denver Intl. (DEN) to Boise (BOI). For even more choices, look at flights that include layovers, as there are approximately 53 connecting flights per day. Some common connection points include Seattle - Tacoma Intl. (SEA), Portland Intl. (PDX), and San Diego Intl. (SAN).
What is the earliest flight from Denver, CO (DEN-Denver Intl.) to Boise, ID (BOI)?
Sort flights by "Departure (earliest)" on Expedia to find the earliest flight from DEN to BOI. To compare more early flights, use the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Denver, CO (DEN-Denver Intl.) to Boise, ID (BOI)?
You'll typically find the most flights from Denver, CO (DEN-Denver Intl.) to Boise, ID (BOI) on a Thursday, with around 66 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include Southwest Airlines, United, and Alaska Airlines. Flight schedules are fairly consistent throughout the week, with Thursdays offering only slightly more options than other days.
What are the most popular departure times for flights from Denver, CO (DEN-Denver Intl.) to Boise, ID (BOI)?
The most popular departure times for flights from Denver, CO (DEN-Denver Intl.) to Boise, ID (BOI) are in the early morning, from 6am to 9am. Many major carriers, including Southwest Airlines, Alaska Airlines and United, offer flights during this window. Many travelers prefer this because it allows for an early arrival in Boise, giving you more time to enjoy your day.
How long does it take to fly from Denver, CO (DEN-Denver Intl.) to Boise, ID (BOI)?
When flying from Denver, CO (DEN-Denver Intl.) to Boise, ID (BOI), you have a few options. A nonstop flight typically takes around 2 hours, covering a distance of approximately 1,043 kilometres. If you opt for a one-stop flight, your travel time will generally be longer, averaging about 6 hours 18 minutes. Flights with two or more stops usually take even longer, around 8 hours 30 minutes. Keep in mind that actual flight times can vary due to factors like wind patterns and air traffic, so it's always a good idea to allow for some extra time when planning your trip.
Can you fly business or first class from Denver, CO (DEN-Denver Intl.) to Boise, ID (BOI)?
You can fly business class or first class between DEN and BOI. You can fly business class with Frontier Airlines and Delta.First class cabins are available on:
  • Alaska Airlines
  • Delta
  • United
  • American Airlines

How do I earn miles on a Denver, CO (DEN-Denver Intl.) to Boise, ID (BOI) flight with Expedia?
It's easy to earn miles on a Denver, CO (DEN-Denver Intl.) to Boise, ID (BOI) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
Is it cheaper to buy a plane ticket from Denver, CO (DEN-Denver Intl.) to Boise, ID (BOI) at the last minute?
Typically, booking a last minute flight from Denver, CO (DEN-Denver Intl.) to Boise, ID (BOI) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Denver, CO (DEN-Denver Intl.) to Boise, ID (BOI) flight and hotel package?
Securing a Denver, CO (DEN-Denver Intl.) to Boise, ID (BOI) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Denver, CO (DEN) to Boise, ID (BOI)?
If you booked your Denver, CO (DEN) to Boise, ID (BOI) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Denver Intl.
Destination airport
Boise
Roundtrip price
CA $374
Distance
1036 km
Average flight time
1 hour 54 mins

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Denver to Boise Flights

The easy way to book your flights from Denver to Boise 

With Expedia, it’s simple to find and book flights to Boise from Denver whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 20 airlines that cover this route. There are nonstop flights to Boise, too.  

Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Denver to Boise today, tomorrow, or this week.  

 

Save dollars with cheap flights from Denver Intl., DEN to Boise, BOI 

Sort your search results by price to find great deals on your flight from Denver to Boise—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Boise from Denver currently is just CA $374 rising to CA $442.  

Here are more money-saving tips: 

  • Fly in September when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to Boise  
  • Avoid peak season and weekends when flights can cost more
  • Early morning and late-night flights are sometimes cheaper, so try varying your travel times 
  • One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! 

 

Reasons to choose Expedia for your flight to Boise from Denver 

Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Boise with Expedia today.

Denver to Boise Flights

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