Denver to Boise

1 ways to travelfastest 4h 12mfly from €84
Photo: Ben Hoskyn / Unsplash

When is it cheapest to fly?

Oct: from €186 — show this month's calendar €186 OctJan: from €84 — show this month's calendar €84 Jan

Departure-day prices · October 2026 Denver → Boise

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Cheapest days highlighted · darker = pricier · past days greyed out · cached one-way fares.

Return-day prices · October 2026 Boise → Denver

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Best time to visit Boise — climate

Jan: ~4°C daytime, 8 rainy days 4° JanFeb: ~5°C daytime, 15 rainy days 5° FebMar: ~13°C daytime, 11 rainy days 13° MarApr: ~17°C daytime, 4 rainy days 17° AprMay: ~24°C daytime, 7 rainy days 24° MayJun: ~30°C daytime, 1 rainy days 30° JunJul: ~34°C daytime, 1 rainy days 34° JulAug: ~32°C daytime, 2 rainy days 32° AugSep: ~29°C daytime, 2 rainy days 29° SepOct: ~17°C daytime, 9 rainy days 17° OctNov: ~12°C daytime, 9 rainy days 12° NovDec: ~9°C daytime, 13 rainy days 9° Dec

Best value: Oct — fares from €186 and ~17°C daytime.

Flights from Denver to Boise start around €84 (typically 1 stop). Range seen recently: €84–259, based on 3 fares found by travellers.

Fly (from €84)
4h 12mduration
€84–259recent fares
Book
Cheapest cached fares Denver → Boise; typically 1 stop (e.g. AS). · Based on 3 fares found by travellers in the last 48h

Cheapest round trips to Boise

Fares found by travellers in the last 48 hours — refreshed daily.

Dec 11 – Dec 14 Frontier Airlines · 1 stop · 4h 20m €223 Book
Dec 18 – Dec 21 Alaska Airlines · 1 stop · 4h 16m €282 Book
Dec 18 – Dec 22 Alaska Airlines · 1 stop · 4h 16m €282 Book

Weather in Boise

Sun 🌤️ 23° 7° 💧0%
Mon ☁️ 26° 9° 💧0%
Tue ☁️ 25° 10° 💧7%
Wed 🌦️ 24° 15° 💧41%
Thu 🌦️ 21° 13° 💧68%
Fri ☁️ 14° 7° 💧68%
Sat 🌤️ 15° 6° 💧13%

In Oct, Boise typically sees ~17°C daytime highs and 9 rainy days.

Good to know

Time differenceSame time zone
Time in the air4h 16m

Things to do in Boise

Top-rated tours and tickets from €9 — book ahead for the popular ones.

from €180
Spuds and Spokes A Boise Bicycle Foodie Journey★ 5.0 (4)
from €9
Fun City Scavenger Hunt in Boise by Crazy Dash★ 5.0 (1)
from €81
1/2 Day Whitewater Rafting Trip near Boise, ID★ 5.0 (80)
from €171
Boise River Urban Wine Walk: Sip & Stroll Through Urban Wineries★ 4.9 (7)
from €138
Culinary and Cultural Tour of Boise★ 4.7 (95)
from €138
Downtown Boise's Best Brunch Experience★ 4.6 (13)

Tours and tickets provided by Viator (a Tripadvisor company). Some links earn Stayonomy a commission.

About Boise

Boise is the capital and largest city of Idaho. Boise offers numerous recreational opportunities, including extensive hiking and biking in the foothills to the immediate north of downtown. Boise is a regional hub for jazz, theater, and indie music, and is home to several museums.

Read the full Boise guide

Guide content from Wikivoyage contributors (CC BY-SA).

Round out the trip

eSIM for BoiseData from the moment you land — no roaming bills. Rent a car in BoiseCompare local and international rental desks. Airport transferFixed-price pickup waiting at arrivals. Travel insuranceMedical + luggage cover from a few €/day.

Popular from Denver

Cheapest destinations travellers searched recently — refreshed daily.

from €54
Denver Los Angeles
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Flight prices are real fares travellers found in the last 48 hours, refreshed daily — the booking site confirms the final price. Train, bus and ferry fares are shown on the operators' booking sites. Weather data by Open-Meteo; exchange rates: ECB reference. Data updated 2026-10-19. Some links earn Stayonomy a commission at no cost to you.