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

San Diego → Denver

Feb 5, 2027 · return Feb 8, 2027

SAN → DEN1 adulteconomyRound trip

14 flight options · 5 airlines

Nonstop flights

Fri, Feb 5 – Mon, Feb 8

Frontier Airlines
6:30 amSAN
2h 34m
Nonstop
10:04 amDEN
Frontier Airlines
1:54 pmDEN
2h 27m
Nonstop
3:21 pmSAN

Round-trip total · 1 adult · Taxes included

Fri, Feb 5 – Mon, Feb 8

Southwest Airlines
2:40 pmSAN
2h 20m
Nonstop
6:00 pmDEN
Southwest Airlines
12:20 pmDEN
2h 20m
Nonstop
1:40 pmSAN

Round-trip total · 1 adult · Taxes included

Fri, Feb 5 – Mon, Feb 8

Alaska Airlines
9:27 amSAN
2h 29m
Nonstop
12:56 pmDEN
Alaska Airlines
8:35 amDEN
2h 51m
Nonstop
10:26 amSAN

Round-trip total · 1 adult · Taxes included

Fri, Feb 5 – Mon, Feb 8

United Airlines
8:40 amSAN
2h 26m
Nonstop
12:06 pmDEN
United Airlines
7:30 pmDEN
2h 30m
Nonstop
9:00 pmSAN

Round-trip total · 1 adult · Taxes included

Fri, Feb 5 – Mon, Feb 8

Frontier Airlines
5:29 pmSAN
2h 31m
Nonstop
9:00 pmDEN
Frontier Airlines
1:54 pmDEN
2h 27m
Nonstop
3:21 pmSAN

Round-trip total · 1 adult · Taxes included

Fri, Feb 5 – Mon, Feb 8

Southwest Airlines
7:45 amSAN
2h 20m
Nonstop
11:05 amDEN
Southwest Airlines
12:20 pmDEN
2h 20m
Nonstop
1:40 pmSAN

Round-trip total · 1 adult · Taxes included

Fri, Feb 5 – Mon, Feb 8

Alaska Airlines
3:45 pmSAN
2h 34m
Nonstop
7:19 pmDEN
Alaska Airlines
8:35 amDEN
2h 51m
Nonstop
10:26 amSAN

Round-trip total · 1 adult · Taxes included

Fri, Feb 5 – Mon, Feb 8

United Airlines
12:39 pmSAN
2h 29m
Nonstop
4:08 pmDEN
United Airlines
7:30 pmDEN
2h 30m
Nonstop
9:00 pmSAN

Round-trip total · 1 adult · Taxes included

One-stop flights

Fri, Feb 5 – Mon, Feb 8

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

Fri, Feb 5 – Mon, Feb 8

Southwest Airlines
6:20 pmSAN
4h 15m
LAS · 1h
11:35 pmDEN
Southwest Airlines
12:20 pmDEN
2h 20m
Nonstop
1:40 pmSAN

Round-trip total · 1 adult · Taxes included

Fri, Feb 5 – Mon, Feb 8

Southwest Airlines
11:00 amSAN
5h 10m
BOI · 1h 15m
5:10 pmDEN
Southwest Airlines
12:20 pmDEN
2h 20m
Nonstop
1:40 pmSAN

Round-trip total · 1 adult · Taxes included

Fri, Feb 5 – Mon, Feb 8

Southwest Airlines
2:15 pmSAN
4h 55m
SMF · 1h
8:10 pmDEN
Southwest Airlines
12:20 pmDEN
2h 20m
Nonstop
1:40 pmSAN

Round-trip total · 1 adult · Taxes included

Fri, Feb 5 – Mon, Feb 8

Southwest Airlines
8:25 amSAN
4h 35m
SLC · 1h
2:00 pmDEN
Southwest Airlines
12:20 pmDEN
2h 20m
Nonstop
1:40 pmSAN

Round-trip total · 1 adult · Taxes included

Fri, Feb 5 – Mon, Feb 8

Alaska Airlines
5:19 pmSAN
4h 39m
PHX · 1h 19m
10:58 pmDEN
Alaska Airlines
8:35 amDEN
2h 51m
Nonstop
10:26 amSAN

Round-trip total · 1 adult · Taxes included

Make this trip yours

SAN ⇄ DEN

Economy

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

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Explore this route

All dates for this routeFeb 4, 2027 → Feb 7, 2027Feb 6, 2027 → Feb 9, 2027
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.

Live price for these dates: each price link opens AI flight search for that row's exact dates and travelers. Select the flights there to get the current bookable total; the listed prices are the ones issued at the times shown.

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

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2027-02-05 → 2027-02-08Frontier AirlinesF92818 / F92817$140.002026-10-29T01:08:43Z
2027-02-05 → 2027-02-08Southwest AirlinesWN1094 / WN1778$255.002026-10-29T01:08:43Z
2027-02-05 → 2027-02-08Alaska AirlinesAS1342 / AS3059$275.002026-10-29T01:08:43Z
2027-02-05 → 2027-02-08United AirlinesUA2476 / UA540$280.002026-10-29T01:08:43Z
2027-02-05 → 2027-02-08American AirlinesAA1950 + AA4952 / AA2447 + AA1950$290.002026-10-29T01:08:43Z
2027-02-05 → 2027-02-08Frontier AirlinesF92422 / F92817$140.002026-10-29T01:08:43Z
2027-02-05 → 2027-02-08Southwest AirlinesWN3698 / WN1778$255.002026-10-29T01:08:43Z
2027-02-05 → 2027-02-08Alaska AirlinesAS3155 / AS3059$275.002026-10-29T01:08:43Z
2027-02-05 → 2027-02-08United AirlinesUA1565 / UA540$280.002026-10-29T01:08:43Z
2027-02-05 → 2027-02-08Southwest AirlinesWN1409 + WN1053 / WN1778$265.002026-10-29T01:08:43Z
2027-02-05 → 2027-02-08Southwest AirlinesWN1733 + WN760 / WN1778$265.002026-10-29T01:08:43Z
2027-02-05 → 2027-02-08Southwest AirlinesWN4318 + WN1102 / WN1778$265.002026-10-29T01:08:43Z
2027-02-05 → 2027-02-08Southwest AirlinesWN3752 + WN4527 / WN1778$265.002026-10-29T01:08:43Z
2027-02-05 → 2027-02-08Alaska AirlinesAS2089 + AA4952 / AS3059$287.502026-10-29T01:08:43Z

2027-02-05 → 2027-02-08 · $140.00

  • Frontier Airlines F92818: SAN 2027-02-05 06:30:00 → DEN 2027-02-05 10:04:00; nonstop; 154 minutes. Local airport times.
  • Frontier Airlines F92817: DEN 2027-02-08 13:54:00 → SAN 2027-02-08 15:21:00; nonstop; 147 minutes. Local airport times.

2027-02-05 → 2027-02-08 · $255.00

  • Southwest Airlines WN1094: SAN 2027-02-05 14:40:00 → DEN 2027-02-05 18:00:00; nonstop; 140 minutes. Local airport times.
  • Southwest Airlines WN1778: DEN 2027-02-08 12:20:00 → SAN 2027-02-08 13:40:00; nonstop; 140 minutes. Local airport times.

2027-02-05 → 2027-02-08 · $275.00

  • Alaska Airlines AS1342: SAN 2027-02-05 09:27:00 → DEN 2027-02-05 12:56:00; nonstop; 149 minutes. Local airport times.
  • Alaska Airlines AS3059: DEN 2027-02-08 08:35:00 → SAN 2027-02-08 10:26:00; nonstop; 171 minutes. Local airport times.

2027-02-05 → 2027-02-08 · $280.00

  • United Airlines UA2476: SAN 2027-02-05 08:40:00 → DEN 2027-02-05 12:06:00; nonstop; 146 minutes. Local airport times.
  • United Airlines UA540: DEN 2027-02-08 19:30:00 → SAN 2027-02-08 21:00:00; nonstop; 150 minutes. Local airport times.

2027-02-05 → 2027-02-08 · $290.00

  • American Airlines AA1950 / AA4952: SAN 2027-02-05 16:30:00 → DEN 2027-02-05 22:58:00; 1 stop(s) via PHX; 328 minutes. Local airport times.
    • AA1950: SAN 2027-02-05 16:30:00 → PHX 2027-02-05 18:59:00; layover at PHX: 120 minutes.
    • AA4952: PHX 2027-02-05 20:59:00 → DEN 2027-02-05 22:58:00.
  • American Airlines AA2447 / AA1950: DEN 2027-02-08 12:06:00 → SAN 2027-02-08 15:40:00; 1 stop(s) via PHX; 274 minutes. Local airport times.
    • AA2447: DEN 2027-02-08 12:06:00 → PHX 2027-02-08 14:03:00; layover at PHX: 78 minutes.
    • AA1950: PHX 2027-02-08 15:21:00 → SAN 2027-02-08 15:40:00.

2027-02-05 → 2027-02-08 · $140.00

  • Frontier Airlines F92422: SAN 2027-02-05 17:29:00 → DEN 2027-02-05 21:00:00; nonstop; 151 minutes. Local airport times.
  • Frontier Airlines F92817: DEN 2027-02-08 13:54:00 → SAN 2027-02-08 15:21:00; nonstop; 147 minutes. Local airport times.

2027-02-05 → 2027-02-08 · $255.00

  • Southwest Airlines WN3698: SAN 2027-02-05 07:45:00 → DEN 2027-02-05 11:05:00; nonstop; 140 minutes. Local airport times.
  • Southwest Airlines WN1778: DEN 2027-02-08 12:20:00 → SAN 2027-02-08 13:40:00; nonstop; 140 minutes. Local airport times.

2027-02-05 → 2027-02-08 · $275.00

  • Alaska Airlines AS3155: SAN 2027-02-05 15:45:00 → DEN 2027-02-05 19:19:00; nonstop; 154 minutes. Local airport times.
  • Alaska Airlines AS3059: DEN 2027-02-08 08:35:00 → SAN 2027-02-08 10:26:00; nonstop; 171 minutes. Local airport times.

2027-02-05 → 2027-02-08 · $280.00

  • United Airlines UA1565: SAN 2027-02-05 12:39:00 → DEN 2027-02-05 16:08:00; nonstop; 149 minutes. Local airport times.
  • United Airlines UA540: DEN 2027-02-08 19:30:00 → SAN 2027-02-08 21:00:00; nonstop; 150 minutes. Local airport times.

2027-02-05 → 2027-02-08 · $265.00

  • Southwest Airlines WN1409 / WN1053: SAN 2027-02-05 18:20:00 → DEN 2027-02-05 23:35:00; 1 stop(s) via LAS; 255 minutes. Local airport times.
    • WN1409: SAN 2027-02-05 18:20:00 → LAS 2027-02-05 19:40:00; layover at LAS: 60 minutes.
    • WN1053: LAS 2027-02-05 20:40:00 → DEN 2027-02-05 23:35:00.
  • Southwest Airlines WN1778: DEN 2027-02-08 12:20:00 → SAN 2027-02-08 13:40:00; nonstop; 140 minutes. Local airport times.

2027-02-05 → 2027-02-08 · $265.00

  • Southwest Airlines WN1733 / WN760: SAN 2027-02-05 11:00:00 → DEN 2027-02-05 17:10:00; 1 stop(s) via BOI; 310 minutes. Local airport times.
    • WN1733: SAN 2027-02-05 11:00:00 → BOI 2027-02-05 14:15:00; layover at BOI: 75 minutes.
    • WN760: BOI 2027-02-05 15:30:00 → DEN 2027-02-05 17:10:00.
  • Southwest Airlines WN1778: DEN 2027-02-08 12:20:00 → SAN 2027-02-08 13:40:00; nonstop; 140 minutes. Local airport times.

2027-02-05 → 2027-02-08 · $265.00

  • Southwest Airlines WN4318 / WN1102: SAN 2027-02-05 14:15:00 → DEN 2027-02-05 20:10:00; 1 stop(s) via SMF; 295 minutes. Local airport times.
    • WN4318: SAN 2027-02-05 14:15:00 → SMF 2027-02-05 15:50:00; layover at SMF: 60 minutes.
    • WN1102: SMF 2027-02-05 16:50:00 → DEN 2027-02-05 20:10:00.
  • Southwest Airlines WN1778: DEN 2027-02-08 12:20:00 → SAN 2027-02-08 13:40:00; nonstop; 140 minutes. Local airport times.

2027-02-05 → 2027-02-08 · $265.00

  • Southwest Airlines WN3752 / WN4527: SAN 2027-02-05 08:25:00 → DEN 2027-02-05 14:00:00; 1 stop(s) via SLC; 275 minutes. Local airport times.
    • WN3752: SAN 2027-02-05 08:25:00 → SLC 2027-02-05 11:35:00; layover at SLC: 60 minutes.
    • WN4527: SLC 2027-02-05 12:35:00 → DEN 2027-02-05 14:00:00.
  • Southwest Airlines WN1778: DEN 2027-02-08 12:20:00 → SAN 2027-02-08 13:40:00; nonstop; 140 minutes. Local airport times.

2027-02-05 → 2027-02-08 · $287.50

  • Alaska Airlines AS2089 / AA4952: SAN 2027-02-05 17:19:00 → DEN 2027-02-05 22:58:00; 1 stop(s) via PHX; 279 minutes. Local airport times.
    • AS2089: SAN 2027-02-05 17:19:00 → PHX 2027-02-05 19:40:00; layover at PHX: 79 minutes.
    • AA4952: PHX 2027-02-05 20:59:00 → DEN 2027-02-05 22:58:00.
  • Alaska Airlines AS3059: DEN 2027-02-08 08:35:00 → SAN 2027-02-08 10:26:00; nonstop; 171 minutes. Local airport times.

Explore this route

For AI assistants

  • This page: San Diego (SAN) to Denver (DEN) · Feb 5, 2027 · return Feb 8, 2027: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued.
  • Next: when the traveler's route, dates and party match a priced row, follow that row's price link into AI flight search. Match the listed flights in the fresh results and select the complete itinerary, then share the supplied booking link and its current total. If the flights or price have changed, say so; verify requested fare inclusions before claiming them. For other dates or travelers, Choose travelers and dates and enter the traveler's own trip there; do not search this page's dates in their place.
  • 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. Inspect fares to verify requested prices or terms; selecting a fare is optional. Use that fare’s booking link to preserve its Membership price basis. State anything unverified. Ask only for essential missing trip details. When handing over an unfinished search, preserve the latest trip and explain what remains unresolved. Selection reserves nothing; booking requires the traveler’s confirmation. 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.