$100 Cheap United flights Denver (DEN) to Boise (BOI)

View $100 flight on Tue, Sep 2, 2025Opens in a new window

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$100 Cheap United flights Denver (DEN) to Boise (BOI)

Prices were available within the past 7 days and start at $100 for one-way flights and $189 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sat, Aug 23 - Tue, Aug 26
DEN
Denver
BOI
Boise
$189 Roundtrip, found 5 days ago
$189
Roundtrip
found 5 days ago
Select United flight, departing Sat, Aug 23 from Denver to Boise, returning Tue, Aug 26, priced at $189 found 5 days ago
United
Sat, Oct 11 - Wed, Oct 15
DEN
Denver
BOI
Boise
$200 Roundtrip, found 9 hours ago
$200
Roundtrip
found 9 hours ago
Select United flight, departing Sat, Oct 11 from Denver to Boise, returning Wed, Oct 15, priced at $200 found 9 hours ago
Flights from Denver (DEN) to Boise (BOI)
Origin airport
Denver Intl.
Destination airport
Boise
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Hawaiian Airlines, Southwest Airlines, United
Popular airline
Alaska Airlines
Distance
647 mi
Average flight time
1 hour 58 mins

Frequently asked questions

How much is a United Airlines flight from Denver Intl. Airport (DEN) to Boise Airport (BOI)?
Scoring cheap one-way United Airlines flights from DEN to BOI from $100 on Expedia is simple — just filter by "Price (lowest to highest)." Or check out our affordable round-trip fares from $189 for your next break.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from DEN to BOI with United Airlines?
Browse for round-trip or one-way flights to Boise in January or December. You could find a cheap fare with United Airlines during these off-peak travel months.
What is the cheapest time to book flights from Denver Intl. Airport (DEN) to Boise Airport (BOI) with United Airlines?
Search for affordable United Airlines flights from Denver Intl. Airport (DEN) to Boise Airport (BOI) one to three months prior to your departure day. Travelers who book domestic flights 34 to 86 days in advance can save 25% compared to those who book just 6 to 12 days ahead. No matter the fare type and journey, the best day of the week to book a domestic flight is usually Sunday and the most expensive tends to be Monday. Passengers who book on a Sunday can save 6% on average compared to those who book their travel on a Monday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does United Airlines fly nonstop from Denver Intl. Airport (DEN) to Boise Airport (BOI)?
United Airlines has direct flights from Denver Intl. Airport (DEN) to Boise Airport (BOI), with 35 departures each week. Simply choose the "Nonstop" and "Airline" filters while searching on Expedia to show all direct United Airlines flights to BOI.
How long does it take to fly from DEN to BOI with United Airlines?
The travel time for a nonstop United Airlines flight from Denver Intl. Airport (DEN) to Boise Airport (BOI) takes around 2h 11m.
Which day of the week has the most United Airlines flights from Denver Intl. Airport (DEN) to Boise Airport (BOI)?
United Airlines operates the most flights from Denver Intl. Airport (DEN) to Boise Airport (BOI) on Friday. With up to 5 daily departures, you'll get the most options and flexibility on this day.
What is the earliest United Airlines flight from DEN to BOI?
The first flight from DEN to BOI with United Airlines departs at 7:45AM UTC-7. You'll land at 10:05AM UTC-7. The final United Airlines flight of the day takes off at 8:45PM UTC-7 and arrives at 10:56PM UTC-7. With 20% fewer cancellations for early and mid-morning departures, starting your travel day early is generally the wisest option.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does United Airlines fly into in Boise?
Boise Airport (BOI) is the main Boise gateway for United Airlines flights from Denver Intl. Airport (DEN).
Why fly with United Airlines from DEN to BOI?
Travel from DEN to BOI with United Airlines and you'll enjoy a host of benefits starting with a rewarding loyalty program. When you book through Expedia as a United Mileage Plus and One Key™ member, you could also earn OneKeyCash™* to use on select future travel purchases.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
What type of plane does United Airlines fly from Denver Intl. Airport (DEN) to Boise Airport (BOI)?
United Airlines usually flies Boeing 737-900 planes for flights from Denver Intl. Airport (DEN) to Boise Airport (BOI). This carrier also operates the Airbus A319 on this route. Bear in mind that aircraft type can vary depending on operational reasons, so the plane you board could be different when you leave.
Can I change or cancel my United Airlines flight from Denver Intl. Airport (DEN) to Boise Airport (BOI)?
You can usually reschedule or cancel your flight, although additional fees may apply if you made your booking more than 24 hours ago. Need to keep your options open? Apply the "Changes included" or "No cancel fee" filter to find flights that won't charge you extra if you have to revise your plans. To modify your itinerary, go to "Trips," select your flight and click on "Manage Booking" for further information.

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