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Route overview: Boise to Denver (DEN) flight deals

Boise (BOI) to Denver (DEN), Dec 26, 2026: round trips from $281, one way from $169

Boise (BOI) to Denver (DEN), Dec 26, 2026: round trips from $281, one way from $169 on Axel, checked Oct 29, 2026. Lowest published fares: $281 round trip, Axel-exclusive, Southwest Airlines, nonstop, Dec 26, 2026 – Jan 4, 2027; $169 one way, Axel-exclusive, Southwest Airlines, nonstop, Dec 26, 2026; 1 adult, economy, checked Oct 29, 2026.

BOI → DEN1 adulteconomyOne way and round trips

30 flight options · 2 airlines

Choose your return date

One-way flights and round trips by duration. Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

December 2026

Flights for your trip

  1. Sat, Dec 26 · One way

    Southwest Airlines
    3:55 pmBOI
    1h 50m
    Nonstop
    5:45 pmDEN

    One-way total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  2. Sat, Dec 26 · One way

    United Airlines
    2:43 pmBOI
    2h 1m
    Nonstop
    4:44 pmDEN

    One-way total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  3. Sat, Dec 26 – Sun, Dec 27

    Southwest Airlines
    3:55 pmBOI
    1h 50m
    Nonstop
    5:45 pmDEN
    Southwest Airlines
    8:35 amDEN
    2h
    Nonstop
    10:35 amBOI

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  4. Sat, Dec 26 – Sun, Dec 27

    United Airlines
    2:43 pmBOI
    2h 1m
    Nonstop
    4:44 pmDEN
    United Airlines
    7:40 amDEN
    2h 19m
    Nonstop
    9:59 amBOI

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  5. Sat, Dec 26 – Mon, Dec 28

    Southwest Airlines
    3:55 pmBOI
    1h 50m
    Nonstop
    5:45 pmDEN
    Southwest Airlines
    9:00 pmDEN
    2h 5m
    Nonstop
    11:05 pmBOI

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  6. Sat, Dec 26 – Mon, Dec 28

    United Airlines
    2:43 pmBOI
    2h 1m
    Nonstop
    4:44 pmDEN
    United Airlines
    7:40 amDEN
    2h 19m
    Nonstop
    9:59 amBOI

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  7. Sat, Dec 26 – Tue, Dec 29

    Southwest Airlines
    3:55 pmBOI
    1h 50m
    Nonstop
    5:45 pmDEN
    Southwest Airlines
    9:00 pmDEN
    2h 5m
    Nonstop
    11:05 pmBOI

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  8. Sat, Dec 26 – Tue, Dec 29

    United Airlines
    2:43 pmBOI
    2h 1m
    Nonstop
    4:44 pmDEN
    United Airlines
    3:48 pmDEN
    2h 19m
    Nonstop
    6:07 pmBOI

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  9. Sat, Dec 26 – Wed, Dec 30

    Southwest Airlines
    3:55 pmBOI
    1h 50m
    Nonstop
    5:45 pmDEN
    Southwest Airlines
    9:00 pmDEN
    2h 5m
    Nonstop
    11:05 pmBOI

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  10. Sat, Dec 26 – Wed, Dec 30

    United Airlines
    2:43 pmBOI
    2h 1m
    Nonstop
    4:44 pmDEN
    United Airlines
    3:48 pmDEN
    2h 19m
    Nonstop
    6:07 pmBOI

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  11. Sat, Dec 26 – Fri, Jan 1

    Southwest Airlines
    3:55 pmBOI
    1h 50m
    Nonstop
    5:45 pmDEN
    Southwest Airlines
    1:10 pmDEN
    2h
    Nonstop
    3:10 pmBOI

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  12. Sat, Dec 26 – Fri, Jan 1

    United Airlines
    2:43 pmBOI
    2h 1m
    Nonstop
    4:44 pmDEN
    United Airlines
    3:48 pmDEN
    2h 19m
    Nonstop
    6:07 pmBOI

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  13. Sat, Dec 26 – Sat, Jan 2

    Southwest Airlines
    3:55 pmBOI
    1h 50m
    Nonstop
    5:45 pmDEN
    Southwest Airlines
    8:55 pmDEN
    2h 5m
    Nonstop
    11:00 pmBOI

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  14. Sat, Dec 26 – Sat, Jan 2

    United Airlines
    2:43 pmBOI
    2h 1m
    Nonstop
    4:44 pmDEN
    United Airlines
    3:48 pmDEN
    2h 19m
    Nonstop
    6:07 pmBOI

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  15. Sat, Dec 26 – Sun, Jan 3

    Southwest Airlines
    3:55 pmBOI
    1h 50m
    Nonstop
    5:45 pmDEN
    Southwest Airlines
    8:35 amDEN
    2h
    Nonstop
    10:35 amBOI

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  16. Sat, Dec 26 – Sun, Jan 3

    United Airlines
    2:43 pmBOI
    2h 1m
    Nonstop
    4:44 pmDEN
    United Airlines
    11:30 amDEN
    2h 7m
    Nonstop
    1:37 pmBOI

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  17. Sat, Dec 26 – Tue, Jan 5

    Southwest Airlines
    3:55 pmBOI
    1h 50m
    Nonstop
    5:45 pmDEN
    Southwest Airlines
    9:00 pmDEN
    2h 5m
    Nonstop
    11:05 pmBOI

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  18. Sat, Dec 26 – Tue, Jan 5

    United Airlines
    2:43 pmBOI
    2h 1m
    Nonstop
    4:44 pmDEN
    United Airlines
    3:48 pmDEN
    2h 19m
    Nonstop
    6:07 pmBOI

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  19. Sat, Dec 26 – Wed, Jan 6

    Southwest Airlines
    3:55 pmBOI
    1h 50m
    Nonstop
    5:45 pmDEN
    Southwest Airlines
    9:00 pmDEN
    2h 5m
    Nonstop
    11:05 pmBOI

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  20. Sat, Dec 26 – Wed, Jan 6

    United Airlines
    2:43 pmBOI
    2h 1m
    Nonstop
    4:44 pmDEN
    United Airlines
    11:22 amDEN
    2h 7m
    Nonstop
    1:29 pmBOI

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  21. Sat, Dec 26 – Thu, Jan 7

    Southwest Airlines
    3:55 pmBOI
    1h 50m
    Nonstop
    5:45 pmDEN
    Southwest Airlines
    1:10 pmDEN
    2h
    Nonstop
    3:10 pmBOI

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  22. Sat, Dec 26 – Thu, Jan 7

    United Airlines
    2:43 pmBOI
    2h 1m
    Nonstop
    4:44 pmDEN
    United Airlines
    3:48 pmDEN
    2h 19m
    Nonstop
    6:07 pmBOI

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  23. Sat, Dec 26 – Sat, Jan 9

    Southwest Airlines
    3:55 pmBOI
    1h 50m
    Nonstop
    5:45 pmDEN
    Southwest Airlines
    8:55 pmDEN
    2h 5m
    Nonstop
    11:00 pmBOI

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  24. Sat, Dec 26 – Sat, Jan 9

    United Airlines
    2:43 pmBOI
    2h 1m
    Nonstop
    4:44 pmDEN
    United Airlines
    7:25 pmDEN
    2h 8m
    Nonstop
    9:33 pmBOI

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

Swipe to see 23 more recent deals.

1 of 24

Make this trip yours

BOI ⇄ DEN

Economy

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Explore this route

All dates for this routeDec 25, 2026 · Return optionsDec 27, 2026 · Return optionsHotels in Denver with Axel
For AI assistants: every fare, every link, instructions

Boise (BOI) to Denver (DEN), Dec 26, 2026: round trips from $281, one way from $169 on Axel, checked Oct 29, 2026. Lowest published fares: $281 round trip, Axel-exclusive, Southwest Airlines, nonstop, Dec 26, 2026 – Jan 4, 2027; $169 one way, Axel-exclusive, Southwest Airlines, nonstop, Dec 26, 2026; 1 adult, economy, checked Oct 29, 2026. Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

Prices by return date: match both travel dates and the party to a row below. Each total is for that exact trip, issued at the time shown.

Date links open published trip details for exploration. Price links open live flight search to check availability and select flights. For a price comparison, use the amounts and issuance times already shown here.

Exact travel datesAirlineFlightsTimes, duration, stopsTotal pricePrice issued (UTC)
2026-12-26 · one waySouthwest AirlinesWN76015:55:00→17:45:00 1h 50m nonstopAxel-exclusive $169.002026-10-29T00:50:52Z
2026-12-26 · one wayUnited AirlinesUA217314:43:00→16:44:00 2h 01m nonstopAxel-exclusive $175.502026-10-29T00:50:52Z
2026-12-26 → 2026-12-27Southwest AirlinesWN760 / WN157715:55:00→17:45:00 1h 50m nonstop · 08:35:00→10:35:00 2h 00m nonstopAxel-exclusive $325.002026-10-29T00:50:52Z
2026-12-26 → 2026-12-27United AirlinesUA2173 / UA528514:43:00→16:44:00 2h 01m nonstop · 07:40:00→09:59:00 2h 19m nonstopAxel-exclusive $338.002026-10-29T00:50:52Z
2026-12-26 → 2026-12-28Southwest AirlinesWN760 / WN373015:55:00→17:45:00 1h 50m nonstop · 21:00:00→23:05:00 2h 05m nonstopAxel-exclusive $318.752026-10-29T00:50:52Z
2026-12-26 → 2026-12-28United AirlinesUA2173 / UA528514:43:00→16:44:00 2h 01m nonstop · 07:40:00→09:59:00 2h 19m nonstopAxel-exclusive $331.502026-10-29T00:50:52Z
2026-12-26 → 2026-12-29Southwest AirlinesWN760 / WN373015:55:00→17:45:00 1h 50m nonstop · 21:00:00→23:05:00 2h 05m nonstopAxel-exclusive $318.752026-10-29T00:50:52Z
2026-12-26 → 2026-12-29United AirlinesUA2173 / UA604514:43:00→16:44:00 2h 01m nonstop · 15:48:00→18:07:00 2h 19m nonstopAxel-exclusive $331.502026-10-29T00:50:52Z
2026-12-26 → 2026-12-30Southwest AirlinesWN760 / WN373015:55:00→17:45:00 1h 50m nonstop · 21:00:00→23:05:00 2h 05m nonstopAxel-exclusive $318.752026-10-29T00:50:52Z
2026-12-26 → 2026-12-30United AirlinesUA2173 / UA604514:43:00→16:44:00 2h 01m nonstop · 15:48:00→18:07:00 2h 19m nonstopAxel-exclusive $331.502026-10-29T00:50:52Z
2026-12-26 → 2026-12-31Southwest AirlinesWN760 / WN28515:55:00→17:45:00 1h 50m nonstop · 13:10:00→15:10:00 2h 00m nonstopAxel-exclusive $318.752026-10-29T00:50:52Z
2026-12-26 → 2026-12-31United AirlinesUA2173 / UA604514:43:00→16:44:00 2h 01m nonstop · 15:48:00→18:07:00 2h 19m nonstopAxel-exclusive $331.502026-10-29T00:50:52Z
2026-12-26 → 2027-01-01Southwest AirlinesWN760 / WN28515:55:00→17:45:00 1h 50m nonstop · 13:10:00→15:10:00 2h 00m nonstopAxel-exclusive $310.002026-10-29T00:50:52Z
2026-12-26 → 2027-01-01United AirlinesUA2173 / UA604514:43:00→16:44:00 2h 01m nonstop · 15:48:00→18:07:00 2h 19m nonstopAxel-exclusive $322.402026-10-29T00:50:52Z
2026-12-26 → 2027-01-02Southwest AirlinesWN760 / WN154315:55:00→17:45:00 1h 50m nonstop · 20:55:00→23:00:00 2h 05m nonstopAxel-exclusive $310.002026-10-29T00:50:52Z
2026-12-26 → 2027-01-02United AirlinesUA2173 / UA604514:43:00→16:44:00 2h 01m nonstop · 15:48:00→18:07:00 2h 19m nonstopAxel-exclusive $322.402026-10-29T00:50:52Z
2026-12-26 → 2027-01-03Southwest AirlinesWN760 / WN157715:55:00→17:45:00 1h 50m nonstop · 08:35:00→10:35:00 2h 00m nonstopAxel-exclusive $310.002026-10-29T00:50:52Z
2026-12-26 → 2027-01-03United AirlinesUA2173 / UA225514:43:00→16:44:00 2h 01m nonstop · 11:30:00→13:37:00 2h 07m nonstopAxel-exclusive $322.402026-10-29T00:50:52Z
2026-12-26 → 2027-01-04Southwest AirlinesWN760 / WN373015:55:00→17:45:00 1h 50m nonstop · 21:00:00→23:05:00 2h 05m nonstopAxel-exclusive $281.252026-10-29T00:50:52Z
2026-12-26 → 2027-01-04United AirlinesUA2173 / UA225514:43:00→16:44:00 2h 01m nonstop · 11:30:00→13:38:00 2h 08m nonstopAxel-exclusive $292.502026-10-29T00:50:52Z
2026-12-26 → 2027-01-05Southwest AirlinesWN760 / WN373015:55:00→17:45:00 1h 50m nonstop · 21:00:00→23:05:00 2h 05m nonstopAxel-exclusive $281.252026-10-29T00:50:52Z
2026-12-26 → 2027-01-05United AirlinesUA2173 / UA604514:43:00→16:44:00 2h 01m nonstop · 15:48:00→18:07:00 2h 19m nonstopAxel-exclusive $292.502026-10-29T00:50:52Z
2026-12-26 → 2027-01-06Southwest AirlinesWN760 / WN373015:55:00→17:45:00 1h 50m nonstop · 21:00:00→23:05:00 2h 05m nonstopAxel-exclusive $281.252026-10-29T00:50:52Z
2026-12-26 → 2027-01-06United AirlinesUA2173 / UA225514:43:00→16:44:00 2h 01m nonstop · 11:22:00→13:29:00 2h 07m nonstopAxel-exclusive $292.502026-10-29T00:50:52Z
2026-12-26 → 2027-01-07Southwest AirlinesWN760 / WN28515:55:00→17:45:00 1h 50m nonstop · 13:10:00→15:10:00 2h 00m nonstopAxel-exclusive $281.252026-10-29T00:50:52Z
2026-12-26 → 2027-01-07United AirlinesUA2173 / UA604514:43:00→16:44:00 2h 01m nonstop · 15:48:00→18:07:00 2h 19m nonstopAxel-exclusive $292.502026-10-29T00:50:52Z
2026-12-26 → 2027-01-08Southwest AirlinesWN760 / WN28515:55:00→17:45:00 1h 50m nonstop · 13:10:00→15:10:00 2h 00m nonstopAxel-exclusive $281.252026-10-29T00:50:52Z
2026-12-26 → 2027-01-08United AirlinesUA2173 / UA225514:43:00→16:44:00 2h 01m nonstop · 11:30:00→13:38:00 2h 08m nonstopAxel-exclusive $292.502026-10-29T00:50:52Z
2026-12-26 → 2027-01-09Southwest AirlinesWN760 / WN154315:55:00→17:45:00 1h 50m nonstop · 20:55:00→23:00:00 2h 05m nonstopAxel-exclusive $281.252026-10-29T00:50:52Z
2026-12-26 → 2027-01-09United AirlinesUA2173 / UA201414:43:00→16:44:00 2h 01m nonstop · 19:25:00→21:33:00 2h 08m nonstopAxel-exclusive $292.502026-10-29T00:50:52Z

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 lowest saved total among the shortlisted hotels in that star tier for those dates.

All hotels in Denver

Route overview: Boise to Denver (DEN) flight deals

2026-12-26 · one way · Axel-exclusive $169.00

  • Southwest Airlines WN760: BOI 2026-12-26 15:55:00 → DEN 2026-12-26 17:45:00; nonstop; 110 minutes. Local airport times.

2026-12-26 · one way · Axel-exclusive $175.50

  • United Airlines UA2173: BOI 2026-12-26 14:43:00 → DEN 2026-12-26 16:44:00; nonstop; 121 minutes. Local airport times.

2026-12-26 → 2026-12-27 · Axel-exclusive $325.00

  • Southwest Airlines WN760: BOI 2026-12-26 15:55:00 → DEN 2026-12-26 17:45:00; nonstop; 110 minutes. Local airport times.
  • Southwest Airlines WN1577: DEN 2026-12-27 08:35:00 → BOI 2026-12-27 10:35:00; nonstop; 120 minutes. Local airport times.

2026-12-26 → 2026-12-27 · Axel-exclusive $338.00

  • United Airlines UA2173: BOI 2026-12-26 14:43:00 → DEN 2026-12-26 16:44:00; nonstop; 121 minutes. Local airport times.
  • United Airlines UA5285: DEN 2026-12-27 07:40:00 → BOI 2026-12-27 09:59:00; nonstop; 139 minutes. Local airport times.

2026-12-26 → 2026-12-28 · Axel-exclusive $318.75

  • Southwest Airlines WN760: BOI 2026-12-26 15:55:00 → DEN 2026-12-26 17:45:00; nonstop; 110 minutes. Local airport times.
  • Southwest Airlines WN3730: DEN 2026-12-28 21:00:00 → BOI 2026-12-28 23:05:00; nonstop; 125 minutes. Local airport times.

2026-12-26 → 2026-12-28 · Axel-exclusive $331.50

  • United Airlines UA2173: BOI 2026-12-26 14:43:00 → DEN 2026-12-26 16:44:00; nonstop; 121 minutes. Local airport times.
  • United Airlines UA5285: DEN 2026-12-28 07:40:00 → BOI 2026-12-28 09:59:00; nonstop; 139 minutes. Local airport times.

2026-12-26 → 2026-12-29 · Axel-exclusive $318.75

  • Southwest Airlines WN760: BOI 2026-12-26 15:55:00 → DEN 2026-12-26 17:45:00; nonstop; 110 minutes. Local airport times.
  • Southwest Airlines WN3730: DEN 2026-12-29 21:00:00 → BOI 2026-12-29 23:05:00; nonstop; 125 minutes. Local airport times.

2026-12-26 → 2026-12-29 · Axel-exclusive $331.50

  • United Airlines UA2173: BOI 2026-12-26 14:43:00 → DEN 2026-12-26 16:44:00; nonstop; 121 minutes. Local airport times.
  • United Airlines UA6045: DEN 2026-12-29 15:48:00 → BOI 2026-12-29 18:07:00; nonstop; 139 minutes. Local airport times.

2026-12-26 → 2026-12-30 · Axel-exclusive $318.75

  • Southwest Airlines WN760: BOI 2026-12-26 15:55:00 → DEN 2026-12-26 17:45:00; nonstop; 110 minutes. Local airport times.
  • Southwest Airlines WN3730: DEN 2026-12-30 21:00:00 → BOI 2026-12-30 23:05:00; nonstop; 125 minutes. Local airport times.

2026-12-26 → 2026-12-30 · Axel-exclusive $331.50

  • United Airlines UA2173: BOI 2026-12-26 14:43:00 → DEN 2026-12-26 16:44:00; nonstop; 121 minutes. Local airport times.
  • United Airlines UA6045: DEN 2026-12-30 15:48:00 → BOI 2026-12-30 18:07:00; nonstop; 139 minutes. Local airport times.

2026-12-26 → 2027-01-01 · Axel-exclusive $310.00

  • Southwest Airlines WN760: BOI 2026-12-26 15:55:00 → DEN 2026-12-26 17:45:00; nonstop; 110 minutes. Local airport times.
  • Southwest Airlines WN285: DEN 2027-01-01 13:10:00 → BOI 2027-01-01 15:10:00; nonstop; 120 minutes. Local airport times.

2026-12-26 → 2027-01-01 · Axel-exclusive $322.40

  • United Airlines UA2173: BOI 2026-12-26 14:43:00 → DEN 2026-12-26 16:44:00; nonstop; 121 minutes. Local airport times.
  • United Airlines UA6045: DEN 2027-01-01 15:48:00 → BOI 2027-01-01 18:07:00; nonstop; 139 minutes. Local airport times.

2026-12-26 → 2027-01-02 · Axel-exclusive $310.00

  • Southwest Airlines WN760: BOI 2026-12-26 15:55:00 → DEN 2026-12-26 17:45:00; nonstop; 110 minutes. Local airport times.
  • Southwest Airlines WN1543: DEN 2027-01-02 20:55:00 → BOI 2027-01-02 23:00:00; nonstop; 125 minutes. Local airport times.

2026-12-26 → 2027-01-02 · Axel-exclusive $322.40

  • United Airlines UA2173: BOI 2026-12-26 14:43:00 → DEN 2026-12-26 16:44:00; nonstop; 121 minutes. Local airport times.
  • United Airlines UA6045: DEN 2027-01-02 15:48:00 → BOI 2027-01-02 18:07:00; nonstop; 139 minutes. Local airport times.

2026-12-26 → 2027-01-03 · Axel-exclusive $310.00

  • Southwest Airlines WN760: BOI 2026-12-26 15:55:00 → DEN 2026-12-26 17:45:00; 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.

2026-12-26 → 2027-01-03 · Axel-exclusive $322.40

  • United Airlines UA2173: BOI 2026-12-26 14:43:00 → DEN 2026-12-26 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.

2026-12-26 → 2027-01-05 · Axel-exclusive $281.25

  • Southwest Airlines WN760: BOI 2026-12-26 15:55:00 → DEN 2026-12-26 17:45:00; nonstop; 110 minutes. Local airport times.
  • Southwest Airlines WN3730: DEN 2027-01-05 21:00:00 → BOI 2027-01-05 23:05:00; nonstop; 125 minutes. Local airport times.

2026-12-26 → 2027-01-05 · Axel-exclusive $292.50

  • United Airlines UA2173: BOI 2026-12-26 14:43:00 → DEN 2026-12-26 16:44:00; nonstop; 121 minutes. Local airport times.
  • United Airlines UA6045: DEN 2027-01-05 15:48:00 → BOI 2027-01-05 18:07:00; nonstop; 139 minutes. Local airport times.

2026-12-26 → 2027-01-06 · Axel-exclusive $281.25

  • Southwest Airlines WN760: BOI 2026-12-26 15:55:00 → DEN 2026-12-26 17:45:00; nonstop; 110 minutes. Local airport times.
  • Southwest Airlines WN3730: DEN 2027-01-06 21:00:00 → BOI 2027-01-06 23:05:00; nonstop; 125 minutes. Local airport times.

2026-12-26 → 2027-01-06 · Axel-exclusive $292.50

  • United Airlines UA2173: BOI 2026-12-26 14:43:00 → DEN 2026-12-26 16:44:00; nonstop; 121 minutes. Local airport times.
  • United Airlines UA2255: DEN 2027-01-06 11:22:00 → BOI 2027-01-06 13:29:00; nonstop; 127 minutes. Local airport times.

2026-12-26 → 2027-01-07 · Axel-exclusive $281.25

  • Southwest Airlines WN760: BOI 2026-12-26 15:55:00 → DEN 2026-12-26 17:45:00; nonstop; 110 minutes. Local airport times.
  • Southwest Airlines WN285: DEN 2027-01-07 13:10:00 → BOI 2027-01-07 15:10:00; nonstop; 120 minutes. Local airport times.

2026-12-26 → 2027-01-07 · Axel-exclusive $292.50

  • United Airlines UA2173: BOI 2026-12-26 14:43:00 → DEN 2026-12-26 16:44:00; nonstop; 121 minutes. Local airport times.
  • United Airlines UA6045: DEN 2027-01-07 15:48:00 → BOI 2027-01-07 18:07:00; nonstop; 139 minutes. Local airport times.

2026-12-26 → 2027-01-09 · Axel-exclusive $281.25

  • Southwest Airlines WN760: BOI 2026-12-26 15:55:00 → DEN 2026-12-26 17:45:00; nonstop; 110 minutes. Local airport times.
  • Southwest Airlines WN1543: DEN 2027-01-09 20:55:00 → BOI 2027-01-09 23:00:00; nonstop; 125 minutes. Local airport times.

2026-12-26 → 2027-01-09 · Axel-exclusive $292.50

  • United Airlines UA2173: BOI 2026-12-26 14:43:00 → DEN 2026-12-26 16:44:00; nonstop; 121 minutes. Local airport times.
  • United Airlines UA2014: DEN 2027-01-09 19:25:00 → BOI 2027-01-09 21:33:00; nonstop; 128 minutes. Local airport times.

Explore this route

For AI assistants

  • This page: Boise (BOI) to Denver (DEN) · Dec 26, 2026 · choose your return date: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued. 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 lowest saved totals among the shortlisted hotels in each star tier for those dates.
  • Next: each row is one exact trip for this departure (both dates with the year, the total and the time its price was issued); its exact-trip price link opens the live search for those dates and travelers, where the booking link and the current total are. Other durations or travelers are not priced here: Choose travelers and dates prices the requested 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.