Boise (BOI) to Ontario (ONT) · Dec 18, 2026 · one way

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.

Route overview: Boise to Ontario (ONT) flight deals

2026-12-18 · one way · Axel-exclusive $145.00

• Alaska Airlines AS3380: BOI 2026-12-18 15:40:00 → ONT 2026-12-18 16:56:00; nonstop; 136 minutes. Local airport times.

2026-12-18 · one way · Axel-exclusive $155.00

• Southwest Airlines WN1166 / WN1053: BOI 2026-12-18 10:45:00 → ONT 2026-12-18 16:15:00; 1 stop(s) via OAK; 390 minutes. Local airport times.
  • WN1166: BOI 2026-12-18 10:45:00 → OAK 2026-12-18 11:35:00; layover at OAK: 205 minutes.
  • WN1053: OAK 2026-12-18 15:00:00 → ONT 2026-12-18 16:15:00.

2026-12-18 · one way · Axel-exclusive $165.00

• Delta Air Lines DL2095 / DL3879: BOI 2026-12-18 13:07:00 → ONT 2026-12-18 16:22:00; 1 stop(s) via SLC; 255 minutes. Local airport times.
  • DL2095: BOI 2026-12-18 13:07:00 → SLC 2026-12-18 14:25:00; layover at SLC: 64 minutes.
  • DL3879: SLC 2026-12-18 15:29:00 → ONT 2026-12-18 16:22:00.

2026-12-18 · one way · Axel-exclusive $175.00

• American Airlines AA2341 / AA1666: BOI 2026-12-18 14:03:00 → ONT 2026-12-18 19:21:00; 1 stop(s) via PHX; 378 minutes. Local airport times.
  • AA2341: BOI 2026-12-18 14:03:00 → PHX 2026-12-18 16:09:00; layover at PHX: 169 minutes.
  • AA1666: PHX 2026-12-18 18:58:00 → ONT 2026-12-18 19:21:00.

2026-12-18 · one way · Axel-exclusive $180.00

• United Airlines UA4753 / UA552: BOI 2026-12-18 18:55:00 → ONT 2026-12-18 22:53:00; 1 stop(s) via SFO; 298 minutes. Local airport times.
  • UA4753: BOI 2026-12-18 18:55:00 → SFO 2026-12-18 20:10:00; layover at SFO: 80 minutes.
  • UA552: SFO 2026-12-18 21:30:00 → ONT 2026-12-18 22:53:00.

2026-12-18 · one way · Axel-exclusive $155.00

• Southwest Airlines WN1478 / WN2405: BOI 2026-12-18 20:50:00 → ONT 2026-12-18 23:55:00; 1 stop(s) via LAS; 245 minutes. Local airport times.
  • WN1478: BOI 2026-12-18 20:50:00 → LAS 2026-12-18 21:35:00; layover at LAS: 80 minutes.
  • WN2405: LAS 2026-12-18 22:55:00 → ONT 2026-12-18 23:55:00.

2026-12-18 · one way · Axel-exclusive $155.00

• Southwest Airlines WN777 / WN1383: BOI 2026-12-18 09:15:00 → ONT 2026-12-18 12:40:00; 1 stop(s) via SJC; 265 minutes. Local airport times.
  • WN777: BOI 2026-12-18 09:15:00 → SJC 2026-12-18 10:10:00; layover at SJC: 70 minutes.
  • WN1383: SJC 2026-12-18 11:20:00 → ONT 2026-12-18 12:40:00.

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.

Explore this route

• All dates for this route
• Dec 17, 2026 · Return options
• Dec 19, 2026 · Return options

For AI assistants

• This page: Boise (BOI) to Ontario (ONT) · Dec 18, 2026 · one way: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued.
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