$109 Cheap Delta flights Denver (DEN) to Boise (BOI)

View $109 flight on Wed, Aug 27, 2025Opens in a new window

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$109 Cheap Delta flights Denver (DEN) to Boise (BOI)

Prices were available within the past 7 days and start at $109 for one-way flights and $217 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Thu, Aug 28 - Thu, Sep 4
DEN
Denver
BOI
Boise
$217 Roundtrip, just found
$217
Roundtrip
just found
Select Delta flight, departing Thu, Aug 28 from Denver to Boise, returning Thu, Sep 4, priced at $217 just found
Delta
Thu, Jul 24 - Sun, Jul 27
DEN
Denver
BOI
Boise
$261 Roundtrip, just found
$261
Roundtrip
just found
Select Delta flight, departing Thu, Jul 24 from Denver to Boise, returning Sun, Jul 27, priced at $261 just found
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 57 mins

Frequently asked questions

How much is a Delta Air Lines flight from Denver Intl. Airport (DEN) to Boise Airport (BOI)?
Landing cheap one-way Delta Air Lines flights from DEN to BOI from $109 on Expedia is a breeze --- just filter by "Price (lowest to highest)." Or check out our budget-friendly round-trip fares from $217 for your next exciting getaway.**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 Delta Air Lines?
January is one of the most affordable months to jet off to Boise with Delta Air Lines. You could also find great deals on one-way and return tickets in December.
What is the cheapest time to book flights from Denver Intl. Airport (DEN) to Boise Airport (BOI) with Delta Air Lines?
Look for affordable Delta Air Lines flights from Denver Intl. Airport (DEN) to Boise Airport (BOI) one to three months ahead of your day of departure. 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 itinerary, 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 Delta Air Lines fly nonstop from Denver Intl. Airport (DEN) to Boise Airport (BOI)?
To see if there's a direct trip from DEN to BOI with Delta Air Lines or another airline, select the "Nonstop" filter when searching for flights.
What is the earliest Delta Air Lines flight from DEN to BOI?
Find Delta Air Lines's earliest flights from DEN to BOI by using our "Morning" and "Early Morning" filters. Not only will you get to your destination sooner, early departures also have a 20% less chance of being canceled.**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 Delta Air Lines fly into in Boise?
Delta Air Lines flights from Denver Intl. Airport (DEN) to Boise touch down at Boise Airport (BOI). This is the main entry point here.
Why fly with Delta Air Lines from DEN to BOI?
Delta Air Lines makes traveling from DEN to BOI more comfortable with an excellent in-flight experience and a rewarding loyalty program. You may even earn points with Delta SkyMiles. Be sure to sign up to our free One Key™ rewards program to earn OneKeyCash™*, which can be redeemed on future trips.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
Can I change or cancel my Delta Air Lines flight from Denver Intl. Airport (DEN) to Boise Airport (BOI)?
Changes are usually free within 24 hours of booking, but your airline may charge a fee after that time. For further details about modifying your reservation, go to your "Trips," select your flight and click on "Manage Booking." If you'd like the flexibility to change your plans without additional charges, tick the "Changes included" and "No cancel fee" filters when organizing your next escape.

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