Sun Valley (SUN) to Denver (DEN), Jul 21, 2027: from $255 one way

Sun Valley (SUN) to Denver (DEN), Jul 21, 2027: from $255 one way on Axel, checked Oct 29, 2026. Lowest published fare: $255 one way, Axel-exclusive, United Airlines, nonstop, Jul 21, 2027, 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.

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.

Route overview: Sun Valley to Denver (DEN) flight deals

2027-07-21 · one way · Axel-exclusive $255.00

• United Airlines UA5268: SUN 2027-07-21 14:34:00 → DEN 2027-07-21 16:30:00; nonstop; 116 minutes. Local airport times.

2027-07-21 · one way · Axel-exclusive $255.00

• Alaska Airlines AS2203 / AS421: SUN 2027-07-21 11:33:00 → DEN 2027-07-21 17:39:00; 1 stop(s) via SEA; 366 minutes. Local airport times.
  • AS2203: SUN 2027-07-21 11:33:00 → SEA 2027-07-21 12:31:00; layover at SEA: 88 minutes.
  • AS421: SEA 2027-07-21 13:59:00 → DEN 2027-07-21 17:39:00.

2027-07-21 · one way · Axel-exclusive $265.00

• Delta Air Lines DL3867 / DL1667: SUN 2027-07-21 18:40:00 → DEN 2027-07-21 22:37:00; 1 stop(s) via SLC; 237 minutes. Local airport times.
  • DL3867: SUN 2027-07-21 18:40:00 → SLC 2027-07-21 19:57:00; layover at SLC: 62 minutes.
  • DL1667: SLC 2027-07-21 20:59:00 → DEN 2027-07-21 22:37:00.

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
• Jul 20, 2027 · Return options
• Jul 22, 2027 · Return options
• Hotels in Denver with Axel

For AI assistants

• This page: Sun Valley (SUN) to Denver (DEN) · Jul 21, 2027 · one way: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued.
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• 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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