Travel with Axel,
get the best price.

Boise → San Jose

Choose your travel dates

BOI → SJC1 adulteconomy

24 flight options · 3 airlines

Round-trip flights

Fri, Oct 30 – Mon, Nov 2

Southwest Airlines
8:45 pmBOI
1h 45m
Nonstop
9:30 pmSJC
Southwest Airlines
5:35 pmSJC
1h 35m
Nonstop
8:10 pmBOI

Round-trip total · 1 adult · Taxes included

Fri, Oct 30 – Mon, Nov 2

Alaska Airlines
10:18 amBOI
2h
Nonstop
11:18 amSJC
Alaska Airlines
5:08 pmSJC
1h 47m
Nonstop
7:55 pmBOI

Round-trip total · 1 adult · Taxes included

Sat, Oct 31 – Sat, Nov 7

Southwest Airlines
5:45 pmBOI
1h 50m
Nonstop
6:35 pmSJC
Southwest Airlines
10:50 amSJC
1h 35m
Nonstop
1:25 pmBOI

Round-trip total · 1 adult · Taxes included

Sat, Oct 31 – Sat, Nov 7

Alaska Airlines
10:18 amBOI
2h
Nonstop
11:18 amSJC
Alaska Airlines
5:21 pmSJC
1h 44m
Nonstop
8:05 pmBOI

Round-trip total · 1 adult · Taxes included

Tue, Nov 24 – Sun, Nov 29

Southwest Airlines
8:45 pmBOI
1h 45m
Nonstop
9:30 pmSJC
Southwest Airlines
9:05 amSJC
1h 35m
Nonstop
11:40 amBOI

Round-trip total · 1 adult · Taxes included

Tue, Nov 24 – Sun, Nov 29

Alaska Airlines
8:30 amBOI
2h 7m
Nonstop
9:37 amSJC
Alaska Airlines
5:08 pmSJC
1h 47m
Nonstop
7:55 pmBOI

Round-trip total · 1 adult · Taxes included

Fri, Nov 27 – Mon, Nov 30

Southwest Airlines
8:45 pmBOI
1h 45m
Nonstop
9:30 pmSJC
Southwest Airlines
5:35 pmSJC
1h 35m
Nonstop
8:10 pmBOI

Round-trip total · 1 adult · Taxes included

Fri, Nov 27 – Mon, Nov 30

Alaska Airlines
10:18 amBOI
2h
Nonstop
11:18 amSJC
Alaska Airlines
5:08 pmSJC
1h 47m
Nonstop
7:55 pmBOI

Round-trip total · 1 adult · Taxes included

Show 14 more flights

Sat, Nov 28 – Sat, Dec 5

Southwest Airlines
8:45 pmBOI
1h 45m
Nonstop
9:30 pmSJC
Southwest Airlines
10:50 amSJC
1h 35m
Nonstop
1:25 pmBOI

Round-trip total · 1 adult · Taxes included

Sat, Nov 28 – Sat, Dec 5

Alaska Airlines
10:18 amBOI
2h
Nonstop
11:18 amSJC
Alaska Airlines
5:21 pmSJC
1h 44m
Nonstop
8:05 pmBOI

Round-trip total · 1 adult · Taxes included

Tue, Dec 22 – Sun, Dec 27

Southwest Airlines
8:45 pmBOI
1h 45m
Nonstop
9:30 pmSJC
Southwest Airlines
9:05 amSJC
1h 35m
Nonstop
11:40 amBOI

Round-trip total · 1 adult · Taxes included

Tue, Dec 22 – Sun, Dec 27

Alaska Airlines
8:30 amBOI
2h 7m
Nonstop
9:37 amSJC
Alaska Airlines
5:08 pmSJC
1h 47m
Nonstop
7:55 pmBOI

Round-trip total · 1 adult · Taxes included

Fri, Dec 25 – Mon, Dec 28

Southwest Airlines
10:15 amBOI
1h 50m
Nonstop
11:05 amSJC
Southwest Airlines
5:35 pmSJC
1h 35m
Nonstop
8:10 pmBOI

Round-trip total · 1 adult · Taxes included

Fri, Dec 25 – Mon, Dec 28

Alaska Airlines
10:18 amBOI
2h
Nonstop
11:18 amSJC
Alaska Airlines
5:08 pmSJC
1h 47m
Nonstop
7:55 pmBOI

Round-trip total · 1 adult · Taxes included

Sat, Dec 26 – Sat, Jan 2

Southwest Airlines
5:45 pmBOI
1h 50m
Nonstop
6:35 pmSJC
Southwest Airlines
10:50 amSJC
1h 35m
Nonstop
1:25 pmBOI

Round-trip total · 1 adult · Taxes included

Sat, Dec 26 – Sat, Jan 2

Alaska Airlines
10:18 amBOI
2h
Nonstop
11:18 amSJC
Alaska Airlines
5:21 pmSJC
1h 44m
Nonstop
8:05 pmBOI

Round-trip total · 1 adult · Taxes included

Wed, Dec 30 – Sat, Jan 2

Southwest Airlines
10:15 amBOI
1h 50m
Nonstop
11:05 amSJC
Southwest Airlines
10:50 amSJC
1h 35m
Nonstop
1:25 pmBOI

Round-trip total · 1 adult · Taxes included

Wed, Dec 30 – Sat, Jan 2

Alaska Airlines
10:18 amBOI
2h
Nonstop
11:18 amSJC
Alaska Airlines
5:21 pmSJC
1h 44m
Nonstop
8:05 pmBOI

Round-trip total · 1 adult · Taxes included

Fri, Jan 15 – Mon, Jan 18

Southwest Airlines
10:15 amBOI
1h 50m
Nonstop
11:05 amSJC
Southwest Airlines
5:35 pmSJC
1h 35m
Nonstop
8:10 pmBOI

Round-trip total · 1 adult · Taxes included

Fri, Jan 15 – Mon, Jan 18

Alaska Airlines
10:18 amBOI
2h
Nonstop
11:18 amSJC
Alaska Airlines
5:08 pmSJC
1h 47m
Nonstop
7:55 pmBOI

Round-trip total · 1 adult · Taxes included

Fri, Jan 22 – Mon, Jan 25

Southwest Airlines
10:15 amBOI
1h 50m
Nonstop
11:05 amSJC
Southwest Airlines
5:35 pmSJC
1h 35m
Nonstop
8:10 pmBOI

Round-trip total · 1 adult · Taxes included

Fri, Jan 22 – Mon, Jan 25

Delta Air Lines
8:41 amBOI
5h 15m
SLC · 1h 37m
12:56 pmSJC
Delta Air Lines
4:56 pmSJC
6h 14m
SLC · 2h 53m
12:10 am+1BOI

Round-trip total · 1 adult · Taxes included

One-way flights

Fri, Oct 30 · One way

Southwest Airlines
8:45 pmBOI
1h 45m
Nonstop
9:30 pmSJC

One-way total · 1 adult · Taxes included

Fri, Oct 30 · One way

Alaska Airlines
10:18 amBOI
2h
Nonstop
11:18 amSJC

One-way total · 1 adult · Taxes included

Make this trip yours

BOI ⇄ SJC

Economy

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

No account needed to see prices.

Already have an account? Log in

Why book with Axel
  • A real airline bookingThe booking is in the airline’s own system under your name. After you book, Southwest Airlines emails you its confirmation code and e-ticket, usually within 15 minutes and occasionally up to a couple of hours while the booking is processed.
  • Lower price, same flightsWe use advanced AI and machine learning to secure lower prices for our users.
  • 24-hour cancellationCancel within 24 hours of booking for a full refund when your departure is at least 7 days away. Closer to departure, the airline’s fare rules apply. Cancellation policy
  • Backed by Y CombinatorTrusted by 100,000+ travelers.

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

More dates

Nov 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)
2026-10-30 · one waySouthwest AirlinesWN778$119.002026-10-29T00:51:26Z
2026-10-30 · one wayAlaska AirlinesAS2129$129.002026-10-29T00:51:26Z
2026-10-30 → 2026-11-02Southwest AirlinesWN778 / WN3865$218.002026-10-29T00:51:26Z
2026-10-30 → 2026-11-02Alaska AirlinesAS2129 / AS3413$238.002026-10-29T00:51:26Z
2026-10-31 → 2026-11-07Southwest AirlinesWN2120 / WN3223$218.002026-10-29T00:51:26Z
2026-10-31 → 2026-11-07Alaska AirlinesAS2129 / AS3413$238.002026-10-29T00:51:26Z
2026-11-24 → 2026-11-29Southwest AirlinesWN778 / WN343$283.402026-10-29T00:51:26Z
2026-11-24 → 2026-11-29Alaska AirlinesAS3418 / AS3413$309.402026-10-29T00:51:26Z
2026-11-27 → 2026-11-30Southwest AirlinesWN778 / WN3865$283.402026-10-29T00:51:26Z
2026-11-27 → 2026-11-30Alaska AirlinesAS2129 / AS3413$309.402026-10-29T00:51:26Z
2026-11-28 → 2026-12-05Southwest AirlinesWN778 / WN3223$250.702026-10-29T00:51:26Z
2026-11-28 → 2026-12-05Alaska AirlinesAS2129 / AS3413$273.702026-10-29T00:51:26Z
2026-12-22 → 2026-12-27Southwest AirlinesWN778 / WN343$283.402026-10-29T00:51:26Z
2026-12-22 → 2026-12-27Alaska AirlinesAS3418 / AS3413$309.402026-10-29T00:51:26Z
2026-12-25 → 2026-12-28Southwest AirlinesWN3892 / WN3865$283.402026-10-29T00:51:26Z
2026-12-25 → 2026-12-28Alaska AirlinesAS2129 / AS3413$309.402026-10-29T00:51:26Z
2026-12-26 → 2027-01-02Southwest AirlinesWN2120 / WN3223$283.402026-10-29T00:51:26Z
2026-12-26 → 2027-01-02Alaska AirlinesAS2129 / AS3413$309.402026-10-29T00:51:26Z
2026-12-30 → 2027-01-02Southwest AirlinesWN3892 / WN3223$283.402026-10-29T00:51:26Z
2026-12-30 → 2027-01-02Alaska AirlinesAS2129 / AS3413$309.402026-10-29T00:51:26Z
2027-01-15 → 2027-01-18Southwest AirlinesWN3892 / WN3865$218.002026-10-29T00:51:26Z
2027-01-15 → 2027-01-18Alaska AirlinesAS2129 / AS3413$238.002026-10-29T00:51:26Z
2027-01-22 → 2027-01-25Southwest AirlinesWN3892 / WN3865$218.002026-10-29T00:51:26Z
2027-01-22 → 2027-01-25Delta Air LinesDL3607 + DL1254 / DL3966 + DL2111$318.002026-10-29T00:51:26Z

2026-10-30 · one way · $119.00

  • Southwest Airlines WN778: BOI 2026-10-30 20:45:00 → SJC 2026-10-30 21:30:00; nonstop; 105 minutes. Local airport times.

2026-10-30 · one way · $129.00

  • Alaska Airlines AS2129: BOI 2026-10-30 10:18:00 → SJC 2026-10-30 11:18:00; nonstop; 120 minutes. Local airport times.

2026-10-30 → 2026-11-02 · $218.00

  • Southwest Airlines WN778: BOI 2026-10-30 20:45:00 → SJC 2026-10-30 21:30:00; nonstop; 105 minutes. Local airport times.
  • Southwest Airlines WN3865: SJC 2026-11-02 17:35:00 → BOI 2026-11-02 20:10:00; nonstop; 95 minutes. Local airport times.

2026-10-30 → 2026-11-02 · $238.00

  • Alaska Airlines AS2129: BOI 2026-10-30 10:18:00 → SJC 2026-10-30 11:18:00; nonstop; 120 minutes. Local airport times.
  • Alaska Airlines AS3413: SJC 2026-11-02 17:08:00 → BOI 2026-11-02 19:55:00; nonstop; 107 minutes. Local airport times.

2026-10-31 → 2026-11-07 · $218.00

  • Southwest Airlines WN2120: BOI 2026-10-31 17:45:00 → SJC 2026-10-31 18:35:00; nonstop; 110 minutes. Local airport times.
  • Southwest Airlines WN3223: SJC 2026-11-07 10:50:00 → BOI 2026-11-07 13:25:00; nonstop; 95 minutes. Local airport times.

2026-10-31 → 2026-11-07 · $238.00

  • Alaska Airlines AS2129: BOI 2026-10-31 10:18:00 → SJC 2026-10-31 11:18:00; nonstop; 120 minutes. Local airport times.
  • Alaska Airlines AS3413: SJC 2026-11-07 17:21:00 → BOI 2026-11-07 20:05:00; nonstop; 104 minutes. Local airport times.

2026-11-24 → 2026-11-29 · $283.40

  • Southwest Airlines WN778: BOI 2026-11-24 20:45:00 → SJC 2026-11-24 21:30:00; nonstop; 105 minutes. Local airport times.
  • Southwest Airlines WN343: SJC 2026-11-29 09:05:00 → BOI 2026-11-29 11:40:00; nonstop; 95 minutes. Local airport times.

2026-11-24 → 2026-11-29 · $309.40

  • Alaska Airlines AS3418: BOI 2026-11-24 08:30:00 → SJC 2026-11-24 09:37:00; nonstop; 127 minutes. Local airport times.
  • Alaska Airlines AS3413: SJC 2026-11-29 17:08:00 → BOI 2026-11-29 19:55:00; nonstop; 107 minutes. Local airport times.

2026-11-27 → 2026-11-30 · $283.40

  • Southwest Airlines WN778: BOI 2026-11-27 20:45:00 → SJC 2026-11-27 21:30:00; nonstop; 105 minutes. Local airport times.
  • Southwest Airlines WN3865: SJC 2026-11-30 17:35:00 → BOI 2026-11-30 20:10:00; nonstop; 95 minutes. Local airport times.

2026-11-27 → 2026-11-30 · $309.40

  • Alaska Airlines AS2129: BOI 2026-11-27 10:18:00 → SJC 2026-11-27 11:18:00; nonstop; 120 minutes. Local airport times.
  • Alaska Airlines AS3413: SJC 2026-11-30 17:08:00 → BOI 2026-11-30 19:55:00; nonstop; 107 minutes. Local airport times.

2026-11-28 → 2026-12-05 · $250.70

  • Southwest Airlines WN778: BOI 2026-11-28 20:45:00 → SJC 2026-11-28 21:30:00; nonstop; 105 minutes. Local airport times.
  • Southwest Airlines WN3223: SJC 2026-12-05 10:50:00 → BOI 2026-12-05 13:25:00; nonstop; 95 minutes. Local airport times.

2026-11-28 → 2026-12-05 · $273.70

  • Alaska Airlines AS2129: BOI 2026-11-28 10:18:00 → SJC 2026-11-28 11:18:00; nonstop; 120 minutes. Local airport times.
  • Alaska Airlines AS3413: SJC 2026-12-05 17:21:00 → BOI 2026-12-05 20:05:00; nonstop; 104 minutes. Local airport times.

2026-12-22 → 2026-12-27 · $283.40

  • Southwest Airlines WN778: BOI 2026-12-22 20:45:00 → SJC 2026-12-22 21:30:00; nonstop; 105 minutes. Local airport times.
  • Southwest Airlines WN343: SJC 2026-12-27 09:05:00 → BOI 2026-12-27 11:40:00; nonstop; 95 minutes. Local airport times.

2026-12-22 → 2026-12-27 · $309.40

  • Alaska Airlines AS3418: BOI 2026-12-22 08:30:00 → SJC 2026-12-22 09:37:00; nonstop; 127 minutes. Local airport times.
  • Alaska Airlines AS3413: SJC 2026-12-27 17:08:00 → BOI 2026-12-27 19:55:00; nonstop; 107 minutes. Local airport times.

2026-12-25 → 2026-12-28 · $283.40

  • Southwest Airlines WN3892: BOI 2026-12-25 10:15:00 → SJC 2026-12-25 11:05:00; nonstop; 110 minutes. Local airport times.
  • Southwest Airlines WN3865: SJC 2026-12-28 17:35:00 → BOI 2026-12-28 20:10:00; nonstop; 95 minutes. Local airport times.

2026-12-25 → 2026-12-28 · $309.40

  • Alaska Airlines AS2129: BOI 2026-12-25 10:18:00 → SJC 2026-12-25 11:18:00; nonstop; 120 minutes. Local airport times.
  • Alaska Airlines AS3413: SJC 2026-12-28 17:08:00 → BOI 2026-12-28 19:55:00; nonstop; 107 minutes. Local airport times.

2026-12-26 → 2027-01-02 · $283.40

  • Southwest Airlines WN2120: BOI 2026-12-26 17:45:00 → SJC 2026-12-26 18:35:00; nonstop; 110 minutes. Local airport times.
  • Southwest Airlines WN3223: SJC 2027-01-02 10:50:00 → BOI 2027-01-02 13:25:00; nonstop; 95 minutes. Local airport times.

2026-12-26 → 2027-01-02 · $309.40

  • Alaska Airlines AS2129: BOI 2026-12-26 10:18:00 → SJC 2026-12-26 11:18:00; nonstop; 120 minutes. Local airport times.
  • Alaska Airlines AS3413: SJC 2027-01-02 17:21:00 → BOI 2027-01-02 20:05:00; nonstop; 104 minutes. Local airport times.

2026-12-30 → 2027-01-02 · $283.40

  • Southwest Airlines WN3892: BOI 2026-12-30 10:15:00 → SJC 2026-12-30 11:05:00; nonstop; 110 minutes. Local airport times.
  • Southwest Airlines WN3223: SJC 2027-01-02 10:50:00 → BOI 2027-01-02 13:25:00; nonstop; 95 minutes. Local airport times.

2026-12-30 → 2027-01-02 · $309.40

  • Alaska Airlines AS2129: BOI 2026-12-30 10:18:00 → SJC 2026-12-30 11:18:00; nonstop; 120 minutes. Local airport times.
  • Alaska Airlines AS3413: SJC 2027-01-02 17:21:00 → BOI 2027-01-02 20:05:00; nonstop; 104 minutes. Local airport times.

2027-01-15 → 2027-01-18 · $218.00

  • Southwest Airlines WN3892: BOI 2027-01-15 10:15:00 → SJC 2027-01-15 11:05:00; nonstop; 110 minutes. Local airport times.
  • Southwest Airlines WN3865: SJC 2027-01-18 17:35:00 → BOI 2027-01-18 20:10:00; nonstop; 95 minutes. Local airport times.

2027-01-15 → 2027-01-18 · $238.00

  • Alaska Airlines AS2129: BOI 2027-01-15 10:18:00 → SJC 2027-01-15 11:18:00; nonstop; 120 minutes. Local airport times.
  • Alaska Airlines AS3413: SJC 2027-01-18 17:08:00 → BOI 2027-01-18 19:55:00; nonstop; 107 minutes. Local airport times.

2027-01-22 → 2027-01-25 · $218.00

  • Southwest Airlines WN3892: BOI 2027-01-22 10:15:00 → SJC 2027-01-22 11:05:00; nonstop; 110 minutes. Local airport times.
  • Southwest Airlines WN3865: SJC 2027-01-25 17:35:00 → BOI 2027-01-25 20:10:00; nonstop; 95 minutes. Local airport times.

2027-01-22 → 2027-01-25 · $318.00

  • Delta Air Lines DL3607 / DL1254: BOI 2027-01-22 08:41:00 → SJC 2027-01-22 12:56:00; 1 stop(s) via SLC; 315 minutes. Local airport times.
    • DL3607: BOI 2027-01-22 08:41:00 → SLC 2027-01-22 10:15:00; layover at SLC: 97 minutes.
    • DL1254: SLC 2027-01-22 11:52:00 → SJC 2027-01-22 12:56:00.
  • Delta Air Lines DL3966 / DL2111: SJC 2027-01-25 16:56:00 → BOI 2027-01-26 00:10:00; 1 stop(s) via SLC; 374 minutes. Local airport times.
    • DL3966: SJC 2027-01-25 16:56:00 → SLC 2027-01-25 19:58:00; layover at SLC: 173 minutes.
    • DL2111: SLC 2027-01-25 22:51:00 → BOI 2027-01-26 00:10:00.

More dates for this route