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Boise → San Diego

Dec 21, 2026 · return Dec 24, 2026

BOI → SAN1 adulteconomyRound trip

10 flight options · 3 airlines

Nonstop flights

Mon, Dec 21 – Thu, Dec 24

Alaska Airlines
4:47 pmBOI
2h 26m
Nonstop
6:13 pmSAN
Alaska Airlines
4:27 pmSAN
2h 26m
Nonstop
7:53 pmBOI

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Thu, Dec 24

Southwest Airlines
4:25 pmBOI
2h 15m
Nonstop
5:40 pmSAN
Southwest Airlines
6:25 pmSAN
2h 10m
Nonstop
9:35 pmBOI

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Thu, Dec 24

Alaska Airlines
6:43 pmBOI
2h 20m
Nonstop
8:03 pmSAN
Alaska Airlines
10:09 amSAN
2h 21m
Nonstop
1:30 pmBOI

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Thu, Dec 24

Southwest Airlines
5:55 amBOI
2h 10m
Nonstop
7:05 amSAN
Southwest Airlines
6:25 pmSAN
2h 10m
Nonstop
9:35 pmBOI

Round-trip total · 1 adult · Taxes included

One-stop flights

Mon, Dec 21 – Thu, Dec 24

American Airlines
2:03 pmBOI
5h 21m
PHX · 1h 56m
6:24 pmSAN
Southwest Airlines
6:25 pmSAN
2h 10m
Nonstop
9:35 pmBOI

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Thu, Dec 24

Alaska Airlines
7:14 pmBOI
2h 29m
Nonstop
8:43 pmSAN
Alaska Airlines
4:25 pmSAN
4h 41m
SFO · 1h 11m
10:06 pmBOI

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Thu, Dec 24

Southwest Airlines
1:40 pmBOI
4h 50m
OAK · 1h 40m
5:30 pmSAN
Southwest Airlines
6:25 pmSAN
2h 10m
Nonstop
9:35 pmBOI

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Thu, Dec 24

Southwest Airlines
12:40 pmBOI
5h 20m
SJC · 2h 10m
5:00 pmSAN
Southwest Airlines
6:25 pmSAN
2h 10m
Nonstop
9:35 pmBOI

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Thu, Dec 24

Southwest Airlines
5:25 pmBOI
4h 15m
PHX · 1h
8:40 pmSAN
Southwest Airlines
6:25 pmSAN
2h 10m
Nonstop
9:35 pmBOI

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Thu, Dec 24

Alaska Airlines
1:13 pmBOI
5h 11m
PDX · 1h 3m
5:24 pmSAN
Alaska Airlines
10:09 amSAN
2h 21m
Nonstop
1:30 pmBOI

Round-trip total · 1 adult · Taxes included

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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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)
2026-12-21 → 2026-12-24Alaska AirlinesAS2421 / AS3058$399.002026-10-29T00:51:23Z
2026-12-21 → 2026-12-24Southwest AirlinesWN3051 / WN3688$406.002026-10-29T00:51:23Z
2026-12-21 → 2026-12-24American Airlines / Southwest AirlinesAA2341 + AA2016 / WN3688$409.502026-10-29T00:51:23Z
2026-12-21 → 2026-12-24Alaska AirlinesAS2421 / AS2312$399.002026-10-29T00:51:23Z
2026-12-21 → 2026-12-24Southwest AirlinesWN4928 / WN3688$406.002026-10-29T00:51:23Z
2026-12-21 → 2026-12-24Alaska AirlinesAS2421 / AS1435 + AS3375$392.002026-10-29T00:51:23Z
2026-12-21 → 2026-12-24Southwest AirlinesWN768 + WN1972 / WN3688$392.002026-10-29T00:51:23Z
2026-12-21 → 2026-12-24Southwest AirlinesWN1862 + WN1897 / WN3688$392.002026-10-29T00:51:23Z
2026-12-21 → 2026-12-24Southwest AirlinesWN2577 + WN3439 / WN3688$392.002026-10-29T00:51:23Z
2026-12-21 → 2026-12-24Alaska AirlinesAS3015 + AS1320 / AS2312$392.002026-10-29T00:51:23Z

2026-12-21 → 2026-12-24 · $399.00

  • Alaska Airlines AS2421: BOI 2026-12-21 16:47:00 → SAN 2026-12-21 18:13:00; nonstop; 146 minutes. Local airport times.
  • Alaska Airlines AS3058: SAN 2026-12-24 16:27:00 → BOI 2026-12-24 19:53:00; nonstop; 146 minutes. Local airport times.

2026-12-21 → 2026-12-24 · $406.00

  • Southwest Airlines WN3051: BOI 2026-12-21 16:25:00 → SAN 2026-12-21 17:40:00; nonstop; 135 minutes. Local airport times.
  • Southwest Airlines WN3688: SAN 2026-12-24 18:25:00 → BOI 2026-12-24 21:35:00; nonstop; 130 minutes. Local airport times.

2026-12-21 → 2026-12-24 · $409.50

  • American Airlines AA2341 / AA2016: BOI 2026-12-21 14:03:00 → SAN 2026-12-21 18:24:00; 1 stop(s) via PHX; 321 minutes. Local airport times.
    • AA2341: BOI 2026-12-21 14:03:00 → PHX 2026-12-21 16:09:00; layover at PHX: 116 minutes.
    • AA2016: PHX 2026-12-21 18:05:00 → SAN 2026-12-21 18:24:00.
  • Southwest Airlines WN3688: SAN 2026-12-24 18:25:00 → BOI 2026-12-24 21:35:00; nonstop; 130 minutes. Local airport times.

2026-12-21 → 2026-12-24 · $399.00

  • Alaska Airlines AS2421: BOI 2026-12-21 18:43:00 → SAN 2026-12-21 20:03:00; nonstop; 140 minutes. Local airport times.
  • Alaska Airlines AS2312: SAN 2026-12-24 10:09:00 → BOI 2026-12-24 13:30:00; nonstop; 141 minutes. Local airport times.

2026-12-21 → 2026-12-24 · $406.00

  • Southwest Airlines WN4928: BOI 2026-12-21 05:55:00 → SAN 2026-12-21 07:05:00; nonstop; 130 minutes. Local airport times.
  • Southwest Airlines WN3688: SAN 2026-12-24 18:25:00 → BOI 2026-12-24 21:35:00; nonstop; 130 minutes. Local airport times.

2026-12-21 → 2026-12-24 · $392.00

  • Alaska Airlines AS2421: BOI 2026-12-21 19:14:00 → SAN 2026-12-21 20:43:00; nonstop; 149 minutes. Local airport times.
  • Alaska Airlines AS1435 / AS3375: SAN 2026-12-24 16:25:00 → BOI 2026-12-24 22:06:00; 1 stop(s) via SFO; 281 minutes. Local airport times.
    • AS1435: SAN 2026-12-24 16:25:00 → SFO 2026-12-24 18:06:00; layover at SFO: 71 minutes.
    • AS3375: SFO 2026-12-24 19:17:00 → BOI 2026-12-24 22:06:00.

2026-12-21 → 2026-12-24 · $392.00

  • Southwest Airlines WN768 / WN1972: BOI 2026-12-21 13:40:00 → SAN 2026-12-21 17:30:00; 1 stop(s) via OAK; 290 minutes. Local airport times.
    • WN768: BOI 2026-12-21 13:40:00 → OAK 2026-12-21 14:20:00; layover at OAK: 100 minutes.
    • WN1972: OAK 2026-12-21 16:00:00 → SAN 2026-12-21 17:30:00.
  • Southwest Airlines WN3688: SAN 2026-12-24 18:25:00 → BOI 2026-12-24 21:35:00; nonstop; 130 minutes. Local airport times.

2026-12-21 → 2026-12-24 · $392.00

  • Southwest Airlines WN1862 / WN1897: BOI 2026-12-21 12:40:00 → SAN 2026-12-21 17:00:00; 1 stop(s) via SJC; 320 minutes. Local airport times.
    • WN1862: BOI 2026-12-21 12:40:00 → SJC 2026-12-21 13:30:00; layover at SJC: 130 minutes.
    • WN1897: SJC 2026-12-21 15:40:00 → SAN 2026-12-21 17:00:00.
  • Southwest Airlines WN3688: SAN 2026-12-24 18:25:00 → BOI 2026-12-24 21:35:00; nonstop; 130 minutes. Local airport times.

2026-12-21 → 2026-12-24 · $392.00

  • Southwest Airlines WN2577 / WN3439: BOI 2026-12-21 17:25:00 → SAN 2026-12-21 20:40:00; 1 stop(s) via PHX; 255 minutes. Local airport times.
    • WN2577: BOI 2026-12-21 17:25:00 → PHX 2026-12-21 19:30:00; layover at PHX: 60 minutes.
    • WN3439: PHX 2026-12-21 20:30:00 → SAN 2026-12-21 20:40:00.
  • Southwest Airlines WN3688: SAN 2026-12-24 18:25:00 → BOI 2026-12-24 21:35:00; nonstop; 130 minutes. Local airport times.

2026-12-21 → 2026-12-24 · $392.00

  • Alaska Airlines AS3015 / AS1320: BOI 2026-12-21 13:13:00 → SAN 2026-12-21 17:24:00; 1 stop(s) via PDX; 311 minutes. Local airport times.
    • AS3015: BOI 2026-12-21 13:13:00 → PDX 2026-12-21 13:48:00; layover at PDX: 63 minutes.
    • AS1320: PDX 2026-12-21 14:51:00 → SAN 2026-12-21 17:24:00.
  • Alaska Airlines AS2312: SAN 2026-12-24 10:09:00 → BOI 2026-12-24 13:30:00; nonstop; 141 minutes. Local airport times.

More dates for this route