$111 Cheap Flights from Denver (DEN) to Boise (BOI)

You can find cheap one-way flights from $111 and cheap return flights $188 Denver, CO (DEN-Denver Intl.) to Boise, ID (BOI) with Expedia. One-way flights generally range between $149 and $917, and roundtrip flights usually range from $274 to $951. 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 Denver, CO (DEN-Denver Intl.) to Boise, ID (BOI) ticket fares go up or down.

*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.

April is the cheapest month to fly from Denver, CO (DEN) to Boise, ID (BOI), with average return fares around $267. This is about 17% lower than the average price throughout the year, as demand tends to be lower in the spring. Other affordable months to consider are February and August.

*Averages based on flights available on Expedia in the last year.

There are 2 airlines offering direct flights from DEN to BOI:

• United operates around 44 direct flights from DEN to BOI every week
• Frontier Airlines operates around 7 direct flights from DEN to BOI every week

Delta is one of the cheapest airlines offering connecting flights from Denver Intl. (DEN) to an unspecified destination in Boise (BOI), with round-trip tickets starting from around $202. This flight includes a layover in an unspecified location. 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.

*Prices based on flights available on Expedia in the last year.

To find a cheap flight from Denver, CO (DEN-Denver Intl.) 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.

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, WN offers early morning flights. If price is the most important factor, Frontier Airlines typically offers the lowest fares. Alaska Airlines offers the most daily flights from Denver to Boise, 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.

For flights from Denver, CO (DEN) to Boise, ID (BOI), the best times to travel are in April and August. During these months, you can find return flights for about $267, making them both affordable and popular. April offers mild spring weather, while August allows you to enjoy the summer before the crowds thin out.

*Prices based on flights available on Expedia in the last year.

You can find approximately 10 nonstop flights per day from Denver Intl. (DEN) to (BOI). For more options, look at flights that include layovers.

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.

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. This accounts for around 30% of total traffic. Many major carriers, including United Airlines, Alaska Airlines and Southwest Airlines, offer flights during this window. Many travelers prefer this time because it allows for a full day of activities upon arrival in Boise.

Direct flights from DEN to BOI usually take about 2 hours, traveling roughly 648 miles. If you opt for a connecting flight, expect to add around 4 hours 20 minutes to your journey. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.

You can fly first class between DEN and BOI. First class cabins are available on:

• Delta Air Lines
• American Airlines
• United Airlines

A direct, return business class ticket from Denver, CO (DEN) to Boise, ID (BOI) typically costs between $990 - $1,410. there is no data available for one-way flights. Prices often fluctuate based on seasonality and how early you book. You may also be able to find a cheaper business class journey between Denver, CO (DEN-Denver Intl.) to Boise, ID (BOI) if you opt for a connecting flight.

*Prices based on flights available on Expedia in the last year.

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.

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.

Securing a Denver, CO (DEN-Denver Intl.) to Boise, ID (BOI) Boise Vacation Packages 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.

If you booked your Denver, CO (DEN-Denver Intl.) 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.