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Ontario → Las Vegas

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ONT → LAS1 adulteconomy

12 flight options · 2 airlines

Round-trip flights

Fri, Nov 20 – Mon, Nov 23

Frontier Airlines
10:48 pmONT
1h 4m
Nonstop
11:52 pmLAS
Frontier Airlines
5:25 pmLAS
1h 6m
Nonstop
6:31 pmONT

Round-trip total · 1 adult · Taxes included

Fri, Nov 20 – Mon, Nov 23

Southwest Airlines
3:20 pmONT
1h 10m
Nonstop
4:30 pmLAS
Southwest Airlines
3:00 pmLAS
1h
Nonstop
4:00 pmONT

Round-trip total · 1 adult · Taxes included

Fri, Nov 27 – Fri, Dec 4

Frontier Airlines
10:48 pmONT
1h 4m
Nonstop
11:52 pmLAS
Frontier Airlines
7:00 amLAS
1h 5m
Nonstop
8:05 amONT

Round-trip total · 1 adult · Taxes included

Fri, Nov 20 – Mon, Nov 23

Frontier Airlines
2:23 pmONT
1h 8m
Nonstop
3:31 pmLAS
Frontier Airlines
5:25 pmLAS
1h 6m
Nonstop
6:31 pmONT

Round-trip total · 1 adult · Taxes included

Fri, Nov 27 – Fri, Dec 4

Frontier Airlines
2:23 pmONT
1h 8m
Nonstop
3:31 pmLAS
Frontier Airlines
7:00 amLAS
1h 5m
Nonstop
8:05 amONT

Round-trip total · 1 adult · Taxes included

Fri, Nov 20 – Mon, Nov 23

Southwest Airlines
9:45 amONT
1h 5m
Nonstop
10:50 amLAS
Southwest Airlines
3:00 pmLAS
1h
Nonstop
4:00 pmONT

Round-trip total · 1 adult · Taxes included

Fri, Nov 27 – Fri, Dec 4

Southwest Airlines
9:45 amONT
1h 5m
Nonstop
10:50 amLAS
Southwest Airlines
3:00 pmLAS
1h
Nonstop
4:00 pmONT

Round-trip total · 1 adult · Taxes included

Fri, Nov 27 – Fri, Dec 4

Southwest Airlines
3:20 pmONT
1h 10m
Nonstop
4:30 pmLAS
Southwest Airlines
3:00 pmLAS
1h
Nonstop
4:00 pmONT

Round-trip total · 1 adult · Taxes included

One-way flights

Fri, Nov 20 · One way

Frontier Airlines
10:48 pmONT
1h 4m
Nonstop
11:52 pmLAS

One-way total · 1 adult · Taxes included

Fri, Nov 20 · One way

Southwest Airlines
9:45 amONT
1h 5m
Nonstop
10:50 amLAS

One-way total · 1 adult · Taxes included

Fri, Nov 20 · One way

Frontier Airlines
2:23 pmONT
1h 8m
Nonstop
3:31 pmLAS

One-way total · 1 adult · Taxes included

Fri, Nov 20 · One way

Southwest Airlines
3:20 pmONT
1h 10m
Nonstop
4:30 pmLAS

One-way total · 1 adult · Taxes included

Make this trip yours

ONT ⇄ LAS

Economy

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

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Why book with Axel
  • A real airline bookingThe booking is in the airline’s own system under your name. After you book, Frontier 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 20, 2026 → Nov 23, 2026Nov 27, 2026 → Dec 4, 2026Nov 20, 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)
2026-11-20 · one wayFrontier AirlinesF94206$59.002026-10-29T01:52:31Z
2026-11-20 · one waySouthwest AirlinesWN1427$95.002026-10-29T01:52:31Z
2026-11-20 → 2026-11-23Frontier AirlinesF94206 / F91923$118.002026-10-29T01:52:31Z
2026-11-20 → 2026-11-23Southwest AirlinesWN2136 / WN2403$185.002026-10-29T01:52:31Z
2026-11-27 → 2026-12-04Frontier AirlinesF94206 / F91283$129.802026-10-29T01:52:31Z
2026-11-20 · one wayFrontier AirlinesF94758$59.002026-10-29T01:52:31Z
2026-11-20 · one waySouthwest AirlinesWN2136$95.002026-10-29T01:52:31Z
2026-11-20 → 2026-11-23Frontier AirlinesF94758 / F91923$118.002026-10-29T01:52:31Z
2026-11-27 → 2026-12-04Frontier AirlinesF94758 / F91283$129.802026-10-29T01:52:31Z
2026-11-20 → 2026-11-23Southwest AirlinesWN1427 / WN2403$185.002026-10-29T01:52:31Z
2026-11-27 → 2026-12-04Southwest AirlinesWN1427 / WN2403$203.502026-10-29T01:52:31Z
2026-11-27 → 2026-12-04Southwest AirlinesWN2136 / WN2403$203.502026-10-29T01:52:31Z

2026-11-20 · one way · $59.00

  • Frontier Airlines F94206: ONT 2026-11-20 22:48:00 → LAS 2026-11-20 23:52:00; nonstop; 64 minutes. Local airport times.

2026-11-20 · one way · $95.00

  • Southwest Airlines WN1427: ONT 2026-11-20 09:45:00 → LAS 2026-11-20 10:50:00; nonstop; 65 minutes. Local airport times.

2026-11-20 → 2026-11-23 · $118.00

  • Frontier Airlines F94206: ONT 2026-11-20 22:48:00 → LAS 2026-11-20 23:52:00; nonstop; 64 minutes. Local airport times.
  • Frontier Airlines F91923: LAS 2026-11-23 17:25:00 → ONT 2026-11-23 18:31:00; nonstop; 66 minutes. Local airport times.

2026-11-20 → 2026-11-23 · $185.00

  • Southwest Airlines WN2136: ONT 2026-11-20 15:20:00 → LAS 2026-11-20 16:30:00; nonstop; 70 minutes. Local airport times.
  • Southwest Airlines WN2403: LAS 2026-11-23 15:00:00 → ONT 2026-11-23 16:00:00; nonstop; 60 minutes. Local airport times.

2026-11-27 → 2026-12-04 · $129.80

  • Frontier Airlines F94206: ONT 2026-11-27 22:48:00 → LAS 2026-11-27 23:52:00; nonstop; 64 minutes. Local airport times.
  • Frontier Airlines F91283: LAS 2026-12-04 07:00:00 → ONT 2026-12-04 08:05:00; nonstop; 65 minutes. Local airport times.

2026-11-20 · one way · $59.00

  • Frontier Airlines F94758: ONT 2026-11-20 14:23:00 → LAS 2026-11-20 15:31:00; nonstop; 68 minutes. Local airport times.

2026-11-20 · one way · $95.00

  • Southwest Airlines WN2136: ONT 2026-11-20 15:20:00 → LAS 2026-11-20 16:30:00; nonstop; 70 minutes. Local airport times.

2026-11-20 → 2026-11-23 · $118.00

  • Frontier Airlines F94758: ONT 2026-11-20 14:23:00 → LAS 2026-11-20 15:31:00; nonstop; 68 minutes. Local airport times.
  • Frontier Airlines F91923: LAS 2026-11-23 17:25:00 → ONT 2026-11-23 18:31:00; nonstop; 66 minutes. Local airport times.

2026-11-27 → 2026-12-04 · $129.80

  • Frontier Airlines F94758: ONT 2026-11-27 14:23:00 → LAS 2026-11-27 15:31:00; nonstop; 68 minutes. Local airport times.
  • Frontier Airlines F91283: LAS 2026-12-04 07:00:00 → ONT 2026-12-04 08:05:00; nonstop; 65 minutes. Local airport times.

2026-11-20 → 2026-11-23 · $185.00

  • Southwest Airlines WN1427: ONT 2026-11-20 09:45:00 → LAS 2026-11-20 10:50:00; nonstop; 65 minutes. Local airport times.
  • Southwest Airlines WN2403: LAS 2026-11-23 15:00:00 → ONT 2026-11-23 16:00:00; nonstop; 60 minutes. Local airport times.

2026-11-27 → 2026-12-04 · $203.50

  • Southwest Airlines WN1427: ONT 2026-11-27 09:45:00 → LAS 2026-11-27 10:50:00; nonstop; 65 minutes. Local airport times.
  • Southwest Airlines WN2403: LAS 2026-12-04 15:00:00 → ONT 2026-12-04 16:00:00; nonstop; 60 minutes. Local airport times.

2026-11-27 → 2026-12-04 · $203.50

  • Southwest Airlines WN2136: ONT 2026-11-27 15:20:00 → LAS 2026-11-27 16:30:00; nonstop; 70 minutes. Local airport times.
  • Southwest Airlines WN2403: LAS 2026-12-04 15:00:00 → ONT 2026-12-04 16:00:00; nonstop; 60 minutes. Local airport times.

More dates for this route