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Route overview: Boise to San Diego (SAN) flight deals

Boise → San Diego

Dec 3, 2026 · return Dec 10, 2026

BOI → SAN1 adulteconomyRound trip

10 flight options · 3 airlines

Nonstop flights

Thu, Dec 3 – Thu, Dec 10

Alaska Airlines
4:47 pmBOI
2h 26m
Nonstop
6:13 pmSAN
Alaska Airlines
6:49 pmSAN
2h 38m
Nonstop
10:27 pmBOI

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Thu, Dec 3 – Thu, Dec 10

Southwest Airlines
4:25 pmBOI
2h 15m
Nonstop
5:40 pmSAN
Southwest Airlines
6:40 pmSAN
2h 15m
Nonstop
9:55 pmBOI

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Thu, Dec 3 – Thu, Dec 10

Alaska Airlines
7:22 amBOI
2h 32m
Nonstop
8:54 amSAN
Alaska Airlines
6:49 pmSAN
2h 38m
Nonstop
10:27 pmBOI

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Thu, Dec 3 – Thu, Dec 10

Southwest Airlines
8:20 amBOI
2h 25m
Nonstop
9:45 amSAN
Southwest Airlines
6:40 pmSAN
2h 15m
Nonstop
9:55 pmBOI

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

One-stop flights

Thu, Dec 3 – Thu, Dec 10

American Airlines
2:03 pmBOI
5h 21m
PHX · 1h 56m
6:24 pmSAN
Southwest Airlines
6:40 pmSAN
2h 15m
Nonstop
9:55 pmBOI

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Thu, Dec 3 – Thu, Dec 10

Southwest Airlines
3:45 pmBOI
5h 25m
LAS · 2h 30m
8:10 pmSAN
Southwest Airlines
6:40 pmSAN
2h 15m
Nonstop
9:55 pmBOI

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Thu, Dec 3 – Thu, Dec 10

Southwest Airlines
12:40 pmBOI
5h 20m
SJC · 2h 10m
5:00 pmSAN
Southwest Airlines
6:40 pmSAN
2h 15m
Nonstop
9:55 pmBOI

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Thu, Dec 3 – Thu, Dec 10

Southwest Airlines
1:40 pmBOI
4h 50m
OAK · 1h 40m
5:30 pmSAN
Southwest Airlines
6:40 pmSAN
2h 15m
Nonstop
9:55 pmBOI

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Thu, Dec 3 – Thu, Dec 10

Southwest Airlines
5:25 pmBOI
4h 15m
PHX · 1h
8:40 pmSAN
Southwest Airlines
6:40 pmSAN
2h 15m
Nonstop
9:55 pmBOI

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Thu, Dec 3 – Thu, Dec 10

Alaska Airlines
1:13 pmBOI
5h 11m
PDX · 1h 3m
5:24 pmSAN
Alaska Airlines
6:49 pmSAN
2h 38m
Nonstop
10:27 pmBOI

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Make this trip yours

BOI ⇄ SAN

Economy

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

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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

Explore this route

All dates for this routeDec 2, 2026 · Return optionsDec 4, 2026 · Return optionsHotels in Oceanside, California with Axel
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.

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 datesAirlineFlightsTotal pricePrice issued (UTC)
2026-12-03 → 2026-12-10Alaska AirlinesAS2421 / AS3058Axel-exclusive $285.002026-10-29T00:51:23Z
2026-12-03 → 2026-12-10Southwest AirlinesWN3051 / WN3688Axel-exclusive $290.002026-10-29T00:51:23Z
2026-12-03 → 2026-12-10American Airlines / Southwest AirlinesAA2341 + AA2016 / WN3688Axel-exclusive $292.502026-10-29T00:51:23Z
2026-12-03 → 2026-12-10Alaska AirlinesAS3053 / AS3058Axel-exclusive $285.002026-10-29T00:51:23Z
2026-12-03 → 2026-12-10Southwest AirlinesWN3066 / WN3688Axel-exclusive $290.002026-10-29T00:51:23Z
2026-12-03 → 2026-12-10Southwest AirlinesWN285 + WN1319 / WN3688Axel-exclusive $280.002026-10-29T00:51:23Z
2026-12-03 → 2026-12-10Southwest AirlinesWN1862 + WN1897 / WN3688Axel-exclusive $280.002026-10-29T00:51:23Z
2026-12-03 → 2026-12-10Southwest AirlinesWN768 + WN1972 / WN3688Axel-exclusive $280.002026-10-29T00:51:23Z
2026-12-03 → 2026-12-10Southwest AirlinesWN2577 + WN3439 / WN3688Axel-exclusive $280.002026-10-29T00:51:23Z
2026-12-03 → 2026-12-10Alaska AirlinesAS3015 + AS1320 / AS3058Axel-exclusive $280.002026-10-29T00:51:23Z

Route overview: Boise to San Diego (SAN) flight deals

2026-12-03 → 2026-12-10 · Axel-exclusive $285.00

  • Alaska Airlines AS2421: BOI 2026-12-03 16:47:00 → SAN 2026-12-03 18:13:00; nonstop; 146 minutes. Local airport times.
  • Alaska Airlines AS3058: SAN 2026-12-10 18:49:00 → BOI 2026-12-10 22:27:00; nonstop; 158 minutes. Local airport times.

2026-12-03 → 2026-12-10 · Axel-exclusive $290.00

  • Southwest Airlines WN3051: BOI 2026-12-03 16:25:00 → SAN 2026-12-03 17:40:00; nonstop; 135 minutes. Local airport times.
  • Southwest Airlines WN3688: SAN 2026-12-10 18:40:00 → BOI 2026-12-10 21:55:00; nonstop; 135 minutes. Local airport times.

2026-12-03 → 2026-12-10 · Axel-exclusive $292.50

  • American Airlines AA2341 / AA2016: BOI 2026-12-03 14:03:00 → SAN 2026-12-03 18:24:00; 1 stop(s) via PHX; 321 minutes. Local airport times.
    • AA2341: BOI 2026-12-03 14:03:00 → PHX 2026-12-03 16:09:00; layover at PHX: 116 minutes.
    • AA2016: PHX 2026-12-03 18:05:00 → SAN 2026-12-03 18:24:00.
  • Southwest Airlines WN3688: SAN 2026-12-10 18:40:00 → BOI 2026-12-10 21:55:00; nonstop; 135 minutes. Local airport times.

2026-12-03 → 2026-12-10 · Axel-exclusive $285.00

  • Alaska Airlines AS3053: BOI 2026-12-03 07:22:00 → SAN 2026-12-03 08:54:00; nonstop; 152 minutes. Local airport times.
  • Alaska Airlines AS3058: SAN 2026-12-10 18:49:00 → BOI 2026-12-10 22:27:00; nonstop; 158 minutes. Local airport times.

2026-12-03 → 2026-12-10 · Axel-exclusive $290.00

  • Southwest Airlines WN3066: BOI 2026-12-03 08:20:00 → SAN 2026-12-03 09:45:00; nonstop; 145 minutes. Local airport times.
  • Southwest Airlines WN3688: SAN 2026-12-10 18:40:00 → BOI 2026-12-10 21:55:00; nonstop; 135 minutes. Local airport times.

2026-12-03 → 2026-12-10 · Axel-exclusive $280.00

  • Southwest Airlines WN285 / WN1319: BOI 2026-12-03 15:45:00 → SAN 2026-12-03 20:10:00; 1 stop(s) via LAS; 325 minutes. Local airport times.
    • WN285: BOI 2026-12-03 15:45:00 → LAS 2026-12-03 16:30:00; layover at LAS: 150 minutes.
    • WN1319: LAS 2026-12-03 19:00:00 → SAN 2026-12-03 20:10:00.
  • Southwest Airlines WN3688: SAN 2026-12-10 18:40:00 → BOI 2026-12-10 21:55:00; nonstop; 135 minutes. Local airport times.

2026-12-03 → 2026-12-10 · Axel-exclusive $280.00

  • Southwest Airlines WN1862 / WN1897: BOI 2026-12-03 12:40:00 → SAN 2026-12-03 17:00:00; 1 stop(s) via SJC; 320 minutes. Local airport times.
    • WN1862: BOI 2026-12-03 12:40:00 → SJC 2026-12-03 13:30:00; layover at SJC: 130 minutes.
    • WN1897: SJC 2026-12-03 15:40:00 → SAN 2026-12-03 17:00:00.
  • Southwest Airlines WN3688: SAN 2026-12-10 18:40:00 → BOI 2026-12-10 21:55:00; nonstop; 135 minutes. Local airport times.

2026-12-03 → 2026-12-10 · Axel-exclusive $280.00

  • Southwest Airlines WN768 / WN1972: BOI 2026-12-03 13:40:00 → SAN 2026-12-03 17:30:00; 1 stop(s) via OAK; 290 minutes. Local airport times.
    • WN768: BOI 2026-12-03 13:40:00 → OAK 2026-12-03 14:20:00; layover at OAK: 100 minutes.
    • WN1972: OAK 2026-12-03 16:00:00 → SAN 2026-12-03 17:30:00.
  • Southwest Airlines WN3688: SAN 2026-12-10 18:40:00 → BOI 2026-12-10 21:55:00; nonstop; 135 minutes. Local airport times.

2026-12-03 → 2026-12-10 · Axel-exclusive $280.00

  • Southwest Airlines WN2577 / WN3439: BOI 2026-12-03 17:25:00 → SAN 2026-12-03 20:40:00; 1 stop(s) via PHX; 255 minutes. Local airport times.
    • WN2577: BOI 2026-12-03 17:25:00 → PHX 2026-12-03 19:30:00; layover at PHX: 60 minutes.
    • WN3439: PHX 2026-12-03 20:30:00 → SAN 2026-12-03 20:40:00.
  • Southwest Airlines WN3688: SAN 2026-12-10 18:40:00 → BOI 2026-12-10 21:55:00; nonstop; 135 minutes. Local airport times.

2026-12-03 → 2026-12-10 · Axel-exclusive $280.00

  • Alaska Airlines AS3015 / AS1320: BOI 2026-12-03 13:13:00 → SAN 2026-12-03 17:24:00; 1 stop(s) via PDX; 311 minutes. Local airport times.
    • AS3015: BOI 2026-12-03 13:13:00 → PDX 2026-12-03 13:48:00; layover at PDX: 63 minutes.
    • AS1320: PDX 2026-12-03 14:51:00 → SAN 2026-12-03 17:24:00.
  • Alaska Airlines AS3058: SAN 2026-12-10 18:49:00 → BOI 2026-12-10 22:27:00; nonstop; 158 minutes. Local airport times.

Explore this route

For AI assistants

  • This page: Boise (BOI) to San Diego (SAN) · Dec 3, 2026 · return Dec 10, 2026: 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 Boise to San Diego (SAN) 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.