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Route overview: Boise to Denver (DEN) flight deals

Boise → Denver

Dec 21, 2026 · return Dec 23, 2026

BOI → DEN1 adulteconomyRound trip

6 flight options · 4 airlines

Nonstop flights

Mon, Dec 21 – Wed, Dec 23

Southwest Airlines
7:55 amBOI
1h 55m
Nonstop
9:50 amDEN
Southwest Airlines
1:10 pmDEN
2h
Nonstop
3:10 pmBOI

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Wed, Dec 23

United Airlines
10:40 amBOI
2h 16m
Nonstop
12:56 pmDEN
United Airlines
11:35 amDEN
2h 4m
Nonstop
1:39 pmBOI

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Wed, Dec 23

Southwest Airlines
4:10 pmBOI
1h 50m
Nonstop
6:00 pmDEN
Southwest Airlines
1:10 pmDEN
2h
Nonstop
3:10 pmBOI

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Wed, Dec 23

United Airlines
5:00 amBOI
2h 5m
Nonstop
7:05 amDEN
United Airlines
11:35 amDEN
2h 4m
Nonstop
1:39 pmBOI

Round-trip total · 1 adult · Taxes included

One-stop flights

Mon, Dec 21 – Wed, Dec 23

Alaska Airlines
5:35 amBOI
5h 16m
PDX · 1h 4m
10:51 amDEN
Alaska Airlines
2:56 pmDEN
5h 10m
PDX · 1h 1m
8:06 pmBOI

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Wed, Dec 23

Delta Air Lines
1:07 pmBOI
4h 12m
SLC · 1h 24m
5:19 pmDEN
Delta Air Lines
12:29 pmDEN
5h 24m
SLC · 2h 31m
5:53 pmBOI

Round-trip total · 1 adult · Taxes included

Make this trip yours

BOI ⇄ DEN

Economy

Adults 12+ · Children 2–11. For infants under 2, tell Axel after you see prices.

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All dates for this routeDec 20, 2026 → Dec 22, 2026Dec 22, 2026 → Dec 24, 2026
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Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

Route overview: Boise to Denver (DEN) flight deals

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2026-12-21 → 2026-12-23Southwest AirlinesWN758 / WN285$325.002026-10-29T00:50:52Z
2026-12-21 → 2026-12-23United AirlinesUA5415 / UA2255$338.002026-10-29T00:50:52Z
2026-12-21 → 2026-12-23Alaska AirlinesAS782 + AS1359 / AS714 + AS260$364.002026-10-29T00:50:52Z
2026-12-21 → 2026-12-23Delta Air LinesDL2095 + DL1623 / DL1553 + DL2920$377.002026-10-29T00:50:52Z
2026-12-21 → 2026-12-23Southwest AirlinesWN760 / WN285$325.002026-10-29T00:50:52Z
2026-12-21 → 2026-12-23United AirlinesUA5924 / UA2255$338.002026-10-29T00:50:52Z

2026-12-21 → 2026-12-23 · $325.00

  • Southwest Airlines WN758: BOI 2026-12-21 07:55:00 → DEN 2026-12-21 09:50:00; nonstop; 115 minutes. Local airport times.
  • Southwest Airlines WN285: DEN 2026-12-23 13:10:00 → BOI 2026-12-23 15:10:00; nonstop; 120 minutes. Local airport times.

2026-12-21 → 2026-12-23 · $338.00

  • United Airlines UA5415: BOI 2026-12-21 10:40:00 → DEN 2026-12-21 12:56:00; nonstop; 136 minutes. Local airport times.
  • United Airlines UA2255: DEN 2026-12-23 11:35:00 → BOI 2026-12-23 13:39:00; nonstop; 124 minutes. Local airport times.

2026-12-21 → 2026-12-23 · $364.00

  • Alaska Airlines AS782 / AS1359: BOI 2026-12-21 05:35:00 → DEN 2026-12-21 10:51:00; 1 stop(s) via PDX; 316 minutes. Local airport times.
    • AS782: BOI 2026-12-21 05:35:00 → PDX 2026-12-21 06:11:00; layover at PDX: 64 minutes.
    • AS1359: PDX 2026-12-21 07:15:00 → DEN 2026-12-21 10:51:00.
  • Alaska Airlines AS714 / AS260: DEN 2026-12-23 14:56:00 → BOI 2026-12-23 20:06:00; 1 stop(s) via PDX; 310 minutes. Local airport times.
    • AS714: DEN 2026-12-23 14:56:00 → PDX 2026-12-23 16:47:00; layover at PDX: 61 minutes.
    • AS260: PDX 2026-12-23 17:48:00 → BOI 2026-12-23 20:06:00.

2026-12-21 → 2026-12-23 · $377.00

  • Delta Air Lines DL2095 / DL1623: BOI 2026-12-21 13:07:00 → DEN 2026-12-21 17:19:00; 1 stop(s) via SLC; 252 minutes. Local airport times.
    • DL2095: BOI 2026-12-21 13:07:00 → SLC 2026-12-21 14:25:00; layover at SLC: 84 minutes.
    • DL1623: SLC 2026-12-21 15:49:00 → DEN 2026-12-21 17:19:00.
  • Delta Air Lines DL1553 / DL2920: DEN 2026-12-23 12:29:00 → BOI 2026-12-23 17:53:00; 1 stop(s) via SLC; 324 minutes. Local airport times.
    • DL1553: DEN 2026-12-23 12:29:00 → SLC 2026-12-23 14:06:00; layover at SLC: 151 minutes.
    • DL2920: SLC 2026-12-23 16:37:00 → BOI 2026-12-23 17:53:00.

2026-12-21 → 2026-12-23 · $325.00

  • Southwest Airlines WN760: BOI 2026-12-21 16:10:00 → DEN 2026-12-21 18:00:00; nonstop; 110 minutes. Local airport times.
  • Southwest Airlines WN285: DEN 2026-12-23 13:10:00 → BOI 2026-12-23 15:10:00; nonstop; 120 minutes. Local airport times.

2026-12-21 → 2026-12-23 · $338.00

  • United Airlines UA5924: BOI 2026-12-21 05:00:00 → DEN 2026-12-21 07:05:00; nonstop; 125 minutes. Local airport times.
  • United Airlines UA2255: DEN 2026-12-23 11:35:00 → BOI 2026-12-23 13:39:00; nonstop; 124 minutes. Local airport times.

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