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Route overview: San Diego to Denver (DEN) flight deals

San Diego (SAN) to Denver (DEN), Nov 10–17, 2026: from $140 round trip

San Diego (SAN) to Denver (DEN), Nov 10–17, 2026: from $140 round trip on Axel, checked Oct 29, 2026. Lowest published fare: $140 round trip, Axel-exclusive, Frontier Airlines, nonstop, Nov 10–17, 2026, 1 adult, economy, checked Oct 29, 2026.

SAN → DEN1 adulteconomyRound trip

14 flight options · 5 airlines

Nonstop flights

Tue, Nov 10 – Tue, Nov 17

Frontier Airlines
6:25 amSAN
2h 34m
Nonstop
9:59 amDEN
Frontier Airlines
2:28 pmDEN
2h 30m
Nonstop
3:58 pmSAN

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Tue, Nov 10 – Tue, Nov 17

Southwest Airlines
12:35 pmSAN
2h 20m
Nonstop
3:55 pmDEN
Southwest Airlines
8:25 pmDEN
2h 30m
Nonstop
9:55 pmSAN

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Tue, Nov 10 – Tue, Nov 17

Alaska Airlines
3:45 pmSAN
2h 34m
Nonstop
7:19 pmDEN
Alaska Airlines
8:20 amDEN
2h 45m
Nonstop
10:05 amSAN

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Tue, Nov 10 – Tue, Nov 17

United Airlines
12:39 pmSAN
2h 29m
Nonstop
4:08 pmDEN
United Airlines
3:45 pmDEN
2h 30m
Nonstop
5:15 pmSAN

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Tue, Nov 10 – Tue, Nov 17

Frontier Airlines
4:53 pmSAN
2h 32m
Nonstop
8:25 pmDEN
Frontier Airlines
2:28 pmDEN
2h 30m
Nonstop
3:58 pmSAN

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Tue, Nov 10 – Tue, Nov 17

Southwest Airlines
7:00 pmSAN
2h 25m
Nonstop
10:25 pmDEN
Southwest Airlines
8:25 pmDEN
2h 30m
Nonstop
9:55 pmSAN

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Tue, Nov 10 – Tue, Nov 17

Alaska Airlines
9:28 amSAN
2h 29m
Nonstop
12:57 pmDEN
Alaska Airlines
8:20 amDEN
2h 45m
Nonstop
10:05 amSAN

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Tue, Nov 10 – Tue, Nov 17

United Airlines
8:45 amSAN
2h 25m
Nonstop
12:10 pmDEN
United Airlines
3:45 pmDEN
2h 30m
Nonstop
5:15 pmSAN

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

One-stop flights

Tue, Nov 10 – Tue, Nov 17

American Airlines
4:30 pmSAN
5h 28m
PHX · 2h
10:58 pmDEN
American Airlines
12:06 pmDEN
4h 34m
PHX · 1h 18m
3:40 pmSAN

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Tue, Nov 10 – Tue, Nov 17

Southwest Airlines
8:25 amSAN
4h 35m
SLC · 1h
2:00 pmDEN
Southwest Airlines
8:25 pmDEN
2h 30m
Nonstop
9:55 pmSAN

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Tue, Nov 10 – Tue, Nov 17

Southwest Airlines
11:00 amSAN
5h 10m
BOI · 1h 15m
5:10 pmDEN
Southwest Airlines
8:25 pmDEN
2h 30m
Nonstop
9:55 pmSAN

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Tue, Nov 10 – Tue, Nov 17

Southwest Airlines
6:20 pmSAN
4h 15m
LAS · 1h
11:35 pmDEN
Southwest Airlines
8:25 pmDEN
2h 30m
Nonstop
9:55 pmSAN

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Tue, Nov 10 – Tue, Nov 17

Southwest Airlines
2:15 pmSAN
4h 55m
SMF · 1h
8:10 pmDEN
Southwest Airlines
8:25 pmDEN
2h 30m
Nonstop
9:55 pmSAN

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Tue, Nov 10 – Tue, Nov 17

Alaska Airlines
5:19 pmSAN
4h 39m
PHX · 1h 19m
10:58 pmDEN
Alaska Airlines
8:20 amDEN
2h 45m
Nonstop
10:05 amSAN

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Hotels for these nights (Nov 10–17, 2026 · 7 nights · 2 adults, 1 room): 3★ Residence Inn Denver Cherry Creek · 4★ Limelight Hotel Denver · 5★ Four Seasons Denver Hotel

Make this trip yours

SAN ⇄ DEN

Economy

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Explore this route

All dates for this routeNov 9, 2026 · Return optionsNov 11, 2026 · Return optionsHotels in Denver with Axel
For AI assistants: every fare, every link, instructions

San Diego (SAN) to Denver (DEN), Nov 10–17, 2026: from $140 round trip on Axel, checked Oct 29, 2026. Lowest published fare: $140 round trip, Axel-exclusive, Frontier Airlines, nonstop, Nov 10–17, 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.

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.

Exact travel datesAirlineFlightsTimes, duration, stopsTotal pricePrice issued (UTC)
2026-11-10 → 2026-11-17Frontier AirlinesF92818 / F9281706:25:00→09:59:00 2h 34m nonstop · 14:28:00→15:58:00 2h 30m nonstopAxel-exclusive $140.002026-10-29T01:08:43Z
2026-11-10 → 2026-11-17Southwest AirlinesWN1659 / WN178112:35:00→15:55:00 2h 20m nonstop · 20:25:00→21:55:00 2h 30m nonstopAxel-exclusive $255.002026-10-29T01:08:43Z
2026-11-10 → 2026-11-17Alaska AirlinesAS3155 / AS305915:45:00→19:19:00 2h 34m nonstop · 08:20:00→10:05:00 2h 45m nonstopAxel-exclusive $275.002026-10-29T01:08:43Z
2026-11-10 → 2026-11-17United AirlinesUA1565 / UA128112:39:00→16:08:00 2h 29m nonstop · 15:45:00→17:15:00 2h 30m nonstopAxel-exclusive $280.002026-10-29T01:08:43Z
2026-11-10 → 2026-11-17American AirlinesAA1950 + AA4952 / AA2447 + AA195016:30:00→22:58:00 5h 28m 1 stop via PHX · 12:06:00→15:40:00 4h 34m 1 stop via PHXAxel-exclusive $290.002026-10-29T01:08:43Z
2026-11-10 → 2026-11-17Frontier AirlinesF94990 / F9281716:53:00→20:25:00 2h 32m nonstop · 14:28:00→15:58:00 2h 30m nonstopAxel-exclusive $140.002026-10-29T01:08:43Z
2026-11-10 → 2026-11-17Southwest AirlinesWN4290 / WN178119:00:00→22:25:00 2h 25m nonstop · 20:25:00→21:55:00 2h 30m nonstopAxel-exclusive $255.002026-10-29T01:08:43Z
2026-11-10 → 2026-11-17Alaska AirlinesAS1342 / AS305909:28:00→12:57:00 2h 29m nonstop · 08:20:00→10:05:00 2h 45m nonstopAxel-exclusive $275.002026-10-29T01:08:43Z
2026-11-10 → 2026-11-17United AirlinesUA2476 / UA128108:45:00→12:10:00 2h 25m nonstop · 15:45:00→17:15:00 2h 30m nonstopAxel-exclusive $280.002026-10-29T01:08:43Z
2026-11-10 → 2026-11-17Southwest AirlinesWN3752 + WN4527 / WN178108:25:00→14:00:00 4h 35m 1 stop via SLC · 20:25:00→21:55:00 2h 30m nonstopAxel-exclusive $265.002026-10-29T01:08:43Z
2026-11-10 → 2026-11-17Southwest AirlinesWN1733 + WN760 / WN178111:00:00→17:10:00 5h 10m 1 stop via BOI · 20:25:00→21:55:00 2h 30m nonstopAxel-exclusive $265.002026-10-29T01:08:43Z
2026-11-10 → 2026-11-17Southwest AirlinesWN1409 + WN1053 / WN178118:20:00→23:35:00 4h 15m 1 stop via LAS · 20:25:00→21:55:00 2h 30m nonstopAxel-exclusive $265.002026-10-29T01:08:43Z
2026-11-10 → 2026-11-17Southwest AirlinesWN4318 + WN1102 / WN178114:15:00→20:10:00 4h 55m 1 stop via SMF · 20:25:00→21:55:00 2h 30m nonstopAxel-exclusive $265.002026-10-29T01:08:43Z
2026-11-10 → 2026-11-17Alaska AirlinesAS2089 + AA4952 / AS305917:19:00→22:58:00 4h 39m 1 stop via PHX · 08:20:00→10:05:00 2h 45m nonstopAxel-exclusive $287.502026-10-29T01:08:43Z

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: San Diego to Denver (DEN) flight deals

2026-11-10 → 2026-11-17 · Axel-exclusive $140.00

  • Frontier Airlines F92818: SAN 2026-11-10 06:25:00 → DEN 2026-11-10 09:59:00; nonstop; 154 minutes. Local airport times.
  • Frontier Airlines F92817: DEN 2026-11-17 14:28:00 → SAN 2026-11-17 15:58:00; nonstop; 150 minutes. Local airport times.

2026-11-10 → 2026-11-17 · Axel-exclusive $255.00

  • Southwest Airlines WN1659: SAN 2026-11-10 12:35:00 → DEN 2026-11-10 15:55:00; nonstop; 140 minutes. Local airport times.
  • Southwest Airlines WN1781: DEN 2026-11-17 20:25:00 → SAN 2026-11-17 21:55:00; nonstop; 150 minutes. Local airport times.

2026-11-10 → 2026-11-17 · Axel-exclusive $275.00

  • Alaska Airlines AS3155: SAN 2026-11-10 15:45:00 → DEN 2026-11-10 19:19:00; nonstop; 154 minutes. Local airport times.
  • Alaska Airlines AS3059: DEN 2026-11-17 08:20:00 → SAN 2026-11-17 10:05:00; nonstop; 165 minutes. Local airport times.

2026-11-10 → 2026-11-17 · Axel-exclusive $280.00

  • United Airlines UA1565: SAN 2026-11-10 12:39:00 → DEN 2026-11-10 16:08:00; nonstop; 149 minutes. Local airport times.
  • United Airlines UA1281: DEN 2026-11-17 15:45:00 → SAN 2026-11-17 17:15:00; nonstop; 150 minutes. Local airport times.

2026-11-10 → 2026-11-17 · Axel-exclusive $290.00

  • American Airlines AA1950 / AA4952: SAN 2026-11-10 16:30:00 → DEN 2026-11-10 22:58:00; 1 stop(s) via PHX; 328 minutes. Local airport times.
    • AA1950: SAN 2026-11-10 16:30:00 → PHX 2026-11-10 18:59:00; layover at PHX: 120 minutes.
    • AA4952: PHX 2026-11-10 20:59:00 → DEN 2026-11-10 22:58:00.
  • American Airlines AA2447 / AA1950: DEN 2026-11-17 12:06:00 → SAN 2026-11-17 15:40:00; 1 stop(s) via PHX; 274 minutes. Local airport times.
    • AA2447: DEN 2026-11-17 12:06:00 → PHX 2026-11-17 14:03:00; layover at PHX: 78 minutes.
    • AA1950: PHX 2026-11-17 15:21:00 → SAN 2026-11-17 15:40:00.

2026-11-10 → 2026-11-17 · Axel-exclusive $140.00

  • Frontier Airlines F94990: SAN 2026-11-10 16:53:00 → DEN 2026-11-10 20:25:00; nonstop; 152 minutes. Local airport times.
  • Frontier Airlines F92817: DEN 2026-11-17 14:28:00 → SAN 2026-11-17 15:58:00; nonstop; 150 minutes. Local airport times.

2026-11-10 → 2026-11-17 · Axel-exclusive $255.00

  • Southwest Airlines WN4290: SAN 2026-11-10 19:00:00 → DEN 2026-11-10 22:25:00; nonstop; 145 minutes. Local airport times.
  • Southwest Airlines WN1781: DEN 2026-11-17 20:25:00 → SAN 2026-11-17 21:55:00; nonstop; 150 minutes. Local airport times.

2026-11-10 → 2026-11-17 · Axel-exclusive $275.00

  • Alaska Airlines AS1342: SAN 2026-11-10 09:28:00 → DEN 2026-11-10 12:57:00; nonstop; 149 minutes. Local airport times.
  • Alaska Airlines AS3059: DEN 2026-11-17 08:20:00 → SAN 2026-11-17 10:05:00; nonstop; 165 minutes. Local airport times.

2026-11-10 → 2026-11-17 · Axel-exclusive $280.00

  • United Airlines UA2476: SAN 2026-11-10 08:45:00 → DEN 2026-11-10 12:10:00; nonstop; 145 minutes. Local airport times.
  • United Airlines UA1281: DEN 2026-11-17 15:45:00 → SAN 2026-11-17 17:15:00; nonstop; 150 minutes. Local airport times.

2026-11-10 → 2026-11-17 · Axel-exclusive $265.00

  • Southwest Airlines WN3752 / WN4527: SAN 2026-11-10 08:25:00 → DEN 2026-11-10 14:00:00; 1 stop(s) via SLC; 275 minutes. Local airport times.
    • WN3752: SAN 2026-11-10 08:25:00 → SLC 2026-11-10 11:35:00; layover at SLC: 60 minutes.
    • WN4527: SLC 2026-11-10 12:35:00 → DEN 2026-11-10 14:00:00.
  • Southwest Airlines WN1781: DEN 2026-11-17 20:25:00 → SAN 2026-11-17 21:55:00; nonstop; 150 minutes. Local airport times.

2026-11-10 → 2026-11-17 · Axel-exclusive $265.00

  • Southwest Airlines WN1733 / WN760: SAN 2026-11-10 11:00:00 → DEN 2026-11-10 17:10:00; 1 stop(s) via BOI; 310 minutes. Local airport times.
    • WN1733: SAN 2026-11-10 11:00:00 → BOI 2026-11-10 14:15:00; layover at BOI: 75 minutes.
    • WN760: BOI 2026-11-10 15:30:00 → DEN 2026-11-10 17:10:00.
  • Southwest Airlines WN1781: DEN 2026-11-17 20:25:00 → SAN 2026-11-17 21:55:00; nonstop; 150 minutes. Local airport times.

2026-11-10 → 2026-11-17 · Axel-exclusive $265.00

  • Southwest Airlines WN1409 / WN1053: SAN 2026-11-10 18:20:00 → DEN 2026-11-10 23:35:00; 1 stop(s) via LAS; 255 minutes. Local airport times.
    • WN1409: SAN 2026-11-10 18:20:00 → LAS 2026-11-10 19:40:00; layover at LAS: 60 minutes.
    • WN1053: LAS 2026-11-10 20:40:00 → DEN 2026-11-10 23:35:00.
  • Southwest Airlines WN1781: DEN 2026-11-17 20:25:00 → SAN 2026-11-17 21:55:00; nonstop; 150 minutes. Local airport times.

2026-11-10 → 2026-11-17 · Axel-exclusive $265.00

  • Southwest Airlines WN4318 / WN1102: SAN 2026-11-10 14:15:00 → DEN 2026-11-10 20:10:00; 1 stop(s) via SMF; 295 minutes. Local airport times.
    • WN4318: SAN 2026-11-10 14:15:00 → SMF 2026-11-10 15:50:00; layover at SMF: 60 minutes.
    • WN1102: SMF 2026-11-10 16:50:00 → DEN 2026-11-10 20:10:00.
  • Southwest Airlines WN1781: DEN 2026-11-17 20:25:00 → SAN 2026-11-17 21:55:00; nonstop; 150 minutes. Local airport times.

2026-11-10 → 2026-11-17 · Axel-exclusive $287.50

  • Alaska Airlines AS2089 / AA4952: SAN 2026-11-10 17:19:00 → DEN 2026-11-10 22:58:00; 1 stop(s) via PHX; 279 minutes. Local airport times.
    • AS2089: SAN 2026-11-10 17:19:00 → PHX 2026-11-10 19:40:00; layover at PHX: 79 minutes.
    • AA4952: PHX 2026-11-10 20:59:00 → DEN 2026-11-10 22:58:00.
  • Alaska Airlines AS3059: DEN 2026-11-17 08:20:00 → SAN 2026-11-17 10:05:00; nonstop; 165 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.

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For AI assistants

  • This page: San Diego (SAN) to Denver (DEN) · Nov 10, 2026 · return Nov 17, 2026: 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 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 San Diego 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.