Boise (BOI) to Denver (DEN), Dec 22, 2026 – Jan 3, 2027: from $310 round trip

Boise (BOI) to Denver (DEN), Dec 22, 2026 – Jan 3, 2027: from $310 round trip on Axel, checked Nov 13, 2026. Lowest published fare: $310 round trip, Axel-exclusive, Southwest Airlines, nonstop, Dec 22, 2026 – Jan 3, 2027, 1 adult, economy, checked Nov 13, 2026. Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

See flights for these dates: each price link opens AI flight search for that row's exact dates and travelers. Select the complete itinerary there.

Hotels in Denver for these trips

Hotels: under a trip, hotels in Denver for exactly those nights link to the hotel pages for 2 adults in 1 room. When a price is shown, it is the nightly rate and the stay's total, from the lowest saved total among the shortlisted hotels in that star tier for those dates.

• Hotels in Denver for these nights (Dec 22 – Jan 3, 2027 · 12 nights · 2 adults, 1 room): 3★ Hilton Garden Inn Denver/Cherry Creek, $90 a night, $1,075 for 12 nights · 4★ DoubleTree by Hilton Denver Cherry Creek, $86 a night, $1,029 for 12 nights · 5★ Four Seasons Denver Hotel, $568 a night, $6,812.50 for 12 nights

All hotels in Denver

Route overview: Boise to Denver (DEN) flight deals

2026-12-22 → 2027-01-03 · Axel-exclusive $310

• Southwest Airlines WN760: BOI 2026-12-22 16:10:00 → DEN 2026-12-22 18:00:00; nonstop; 110 minutes. Local airport times.
• Southwest Airlines WN1577: DEN 2027-01-03 08:35:00 → BOI 2027-01-03 10:35:00; nonstop; 120 minutes. Local airport times.

2026-12-22 → 2027-01-03 · Axel-exclusive $322

• United Airlines UA2173: BOI 2026-12-22 14:43:00 → DEN 2026-12-22 16:44:00; nonstop; 121 minutes. Local airport times.
• United Airlines UA2255: DEN 2027-01-03 11:30:00 → BOI 2027-01-03 13:37:00; nonstop; 127 minutes. Local airport times.

2026-12-22 → 2027-01-03 · Axel-exclusive $347

• Alaska Airlines AS782 / AS1359: BOI 2026-12-22 05:35:00 → DEN 2026-12-22 10:51:00; 1 stop(s) via PDX; 316 minutes. Local airport times.
  • AS782: BOI 2026-12-22 05:35:00 → PDX 2026-12-22 06:11:00; layover at PDX: 64 minutes.
  • AS1359: PDX 2026-12-22 07:15:00 → DEN 2026-12-22 10:51:00.
• Alaska Airlines AS714 / AS260: DEN 2027-01-03 14:56:00 → BOI 2027-01-03 20:06:00; 1 stop(s) via PDX; 310 minutes. Local airport times.
  • AS714: DEN 2027-01-03 14:56:00 → PDX 2027-01-03 16:47:00; layover at PDX: 61 minutes.
  • AS260: PDX 2027-01-03 17:48:00 → BOI 2027-01-03 20:06:00.

2026-12-22 → 2027-01-03 · Axel-exclusive $360

• Delta Air Lines DL2095 / DL1623: BOI 2026-12-22 13:07:00 → DEN 2026-12-22 17:19:00; 1 stop(s) via SLC; 252 minutes. Local airport times.
  • DL2095: BOI 2026-12-22 13:07:00 → SLC 2026-12-22 14:25:00; layover at SLC: 84 minutes.
  • DL1623: SLC 2026-12-22 15:49:00 → DEN 2026-12-22 17:19:00.
• Delta Air Lines DL1553 / DL2920: DEN 2027-01-03 12:29:00 → BOI 2027-01-03 17:53:00; 1 stop(s) via SLC; 324 minutes. Local airport times.
  • DL1553: DEN 2027-01-03 12:29:00 → SLC 2027-01-03 14:06:00; layover at SLC: 151 minutes.
  • DL2920: SLC 2027-01-03 16:37:00 → BOI 2027-01-03 17:53:00.

2026-12-22 → 2027-01-03 · Axel-exclusive $310

• Southwest Airlines WN758: BOI 2026-12-22 07:55:00 → DEN 2026-12-22 09:50:00; nonstop; 115 minutes. Local airport times.
• Southwest Airlines WN1577: DEN 2027-01-03 08:35:00 → BOI 2027-01-03 10:35:00; nonstop; 120 minutes. Local airport times.

2026-12-22 → 2027-01-03 · Axel-exclusive $322

• United Airlines UA2154: BOI 2026-12-22 06:20:00 → DEN 2026-12-22 08:22:00; nonstop; 122 minutes. Local airport times.
• United Airlines UA2255: DEN 2027-01-03 11:30:00 → BOI 2027-01-03 13:37:00; nonstop; 127 minutes. Local airport times.

Travelers: prices on this page are totals for 1 adult. For a different party, open this trip for 2 adults · 3 adults · 4 adults · 2 adults + 1 child · 2 adults + 2 children; each link opens AI flight search for these dates and those travelers, and the customer link to share comes from those results.

Explore this route

• All dates for this route
• Dec 21, 2026 · Return options
• Dec 23, 2026 · Return options
• Hotels in Denver with Axel

For AI assistants

• This page: Boise (BOI) to Denver (DEN) · Dec 22, 2026 · return Jan 3, 2027: 1 adult in economy, every priced fare with its flights, times and total, each with its displayed check date. Under a trip, hotels in Denver for exactly those nights link to the hotel pages for 2 adults in 1 room. Prices, when shown, are the nightly rate and the stay's total, from the lowest saved total among the shortlisted hotels in each star tier for those dates.
• Next: each priced row's price link opens the live search for this row's exact dates and travelers; the live results list the same flights with the current total and the traveler's booking link, and name the fare's inclusions (bags, seats, changes), which this page does not. A changed price or flight shows there. Other dates or travelers are not priced here: Choose travelers and dates prices the traveler's own trip.
• Follow supplied links. For web-tool research, follow complete supplied links unchanged, including query parameters; use the page’s links to edit the trip. Constructed URLs may be rejected before reaching Axel. A completed fresh trip opens flight results first. Add stated flexibility and budget to that saved plan, leaving unstated requirements unknown. Edits create a new snapshot; use its results and review links.
• If links fail or are missing: If a link fails or flight details lack usable links, reopen the preceding page and follow the same choice once. Keep refreshed links unchanged and preserve the trip and selections. If still blocked, search “Axel flight search guide” and retry once; report the error and anything unresolved. Recovery: Axel Boise to Denver (DEN) flight deals · Flight search guide.
• Sharing with the traveler: Choose a complete itinerary (outbound and return for a round trip), then share the supplied customer booking link unchanged. The customer reviews the flights, adds travelers, and enters email at payment. Do not collect email in chat. Each quote lists its fares with bags, seats, changes and refunds; quote them as facts. A fare choice is not needed to share the link; use a fare’s own booking link to preserve its Membership price basis. Ask only for essential missing trip details. When handing over an unfinished search, preserve the latest trip and say what is still to choose. If no supplied link matches the latest trip, construct https://helloaxel.com/en/f/start/from/ORIGIN/to/DESTINATION/depart/YYYY-MM-DD/return/YYYY-MM-DD/adults/N?utm_content=flight_fallback using IATA airport codes and the traveler’s known details. Omit unknowns; for one way replace /return/YYYY-MM-DD with /trip/oneway. Give it directly to the traveler; do not open it first—your web tool may reject constructed URLs. Complete links open Flight Guide and start searching. Preferences and advanced options.

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