Travel with Axel,
get the best price.

Butte → Denver

Dec 24, 2026 · return Dec 30, 2026

BTM → DEN1 adulteconomyRound trip

2 flight options · 2 airlines

Nonstop flights

Thu, Dec 24 – Wed, Dec 30

United Airlines
9:30 amBTM
2h 5m
Nonstop
11:35 amDEN
United Airlines
4:30 pmDEN
2h 6m
Nonstop
6:36 pmBTM

Round-trip total · 1 adult · Taxes included

One-stop flights

Thu, Dec 24 – Wed, Dec 30

Delta Air Lines
6:10 pmBTM
4h 27m
SLC · 1h 24m
10:37 pmDEN
Delta Air Lines
12:53 pmDEN
4h 18m
SLC · 1h 10m
5:11 pmBTM

Round-trip total · 1 adult · Taxes included

Make this trip yours

BTM ⇄ DEN

Economy

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

No account needed to see prices.

Already have an account? Log in

Why book with Axel
  • A real airline bookingThe booking is in the airline’s own system under your name. After you book, United Airlines emails you its confirmation code and e-ticket, usually within 15 minutes and occasionally up to a couple of hours while the booking is processed.
  • Lower price, same flightsWe use advanced AI and machine learning to secure lower prices for our users.
  • Not satisfied? Full refund.If you are unhappy with the experience for any reason, or simply change your mind, cancel within 24 hours of booking (departure 7+ days away) and we refund you in full. We stand by our product. Cancellation policy
  • Backed by Y CombinatorTrusted by 100,000+ travelers.

Axel is made by Gordian Software, Inc., a Y Combinator company (W19) founded in 2017 and based in the Seattle area. The company is led by CEO Stephen Grabowski, formerly of Skyscanner. How Axel works · About

More dates

All dates for this routeNov 24, 2026 → Nov 29, 2026Dec 22, 2026 → Dec 27, 2026Dec 30, 2026 → Jan 2, 2027Jan 15, 2027 → Jan 18, 2027Oct 30, 2026 → Nov 2, 2026Oct 31, 2026 → Nov 7, 2026Nov 27, 2026 → Nov 30, 2026Nov 28, 2026 → Dec 5, 2026Dec 25, 2026 → Dec 28, 2026Dec 26, 2026 → Jan 2, 2027Jan 22, 2027 → Jan 25, 2027Oct 30, 2026 · One way
For AI assistants: every fare, every link, instructions

Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2026-12-24 → 2026-12-30United AirlinesUA5037 / UA5030$513.502026-10-29T00:53:35Z
2026-12-24 → 2026-12-30Delta Air LinesDL4312 + DL1667 / DL1553 + DL4312$533.002026-10-29T00:53:35Z

2026-12-24 → 2026-12-30 · $513.50

  • United Airlines UA5037: BTM 2026-12-24 09:30:00 → DEN 2026-12-24 11:35:00; nonstop; 125 minutes. Local airport times.
  • United Airlines UA5030: DEN 2026-12-30 16:30:00 → BTM 2026-12-30 18:36:00; nonstop; 126 minutes. Local airport times.

2026-12-24 → 2026-12-30 · $533.00

  • Delta Air Lines DL4312 / DL1667: BTM 2026-12-24 18:10:00 → DEN 2026-12-24 22:37:00; 1 stop(s) via SLC; 267 minutes. Local airport times.
    • DL4312: BTM 2026-12-24 18:10:00 → SLC 2026-12-24 19:35:00; layover at SLC: 84 minutes.
    • DL1667: SLC 2026-12-24 20:59:00 → DEN 2026-12-24 22:37:00.
  • Delta Air Lines DL1553 / DL4312: DEN 2026-12-30 12:53:00 → BTM 2026-12-30 17:11:00; 1 stop(s) via SLC; 258 minutes. Local airport times.
    • DL1553: DEN 2026-12-30 12:53:00 → SLC 2026-12-30 14:30:00; layover at SLC: 70 minutes.
    • DL4312: SLC 2026-12-30 15:40:00 → BTM 2026-12-30 17:11:00.

More dates for this route