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Ontario → Denver

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ONT → DEN1 adulteconomy

33 flight options · 4 airlines

Round-trip flights

Fri, Nov 20 – Mon, Nov 23

Frontier Airlines
6:30 amONT
2h 21m
Nonstop
9:51 amDEN
Frontier Airlines
10:48 pmDEN
2h 25m
Nonstop
12:13 am+1ONT

Round-trip total · 1 adult · Taxes included

Fri, Nov 20 – Mon, Nov 23

Southwest Airlines
1:55 pmONT
2h 10m
Nonstop
5:05 pmDEN
Southwest Airlines
9:00 pmDEN
2h 30m
Nonstop
10:30 pmONT

Round-trip total · 1 adult · Taxes included

Fri, Nov 20 – Mon, Nov 23

United Airlines
5:00 amONT
2h 17m
Nonstop
8:17 amDEN
United Airlines
11:15 amDEN
2h 18m
Nonstop
12:33 pmONT

Round-trip total · 1 adult · Taxes included

Fri, Nov 20 – Mon, Nov 23

American Airlines
9:50 amONT
4h 24m
PHX · 1h 1m
3:14 pmDEN
American Airlines
12:06 pmDEN
5h 14m
PHX · 1h 53m
4:20 pmONT

Round-trip total · 1 adult · Taxes included

Fri, Nov 27 – Fri, Dec 4

Frontier Airlines
6:30 amONT
2h 21m
Nonstop
9:51 amDEN
Frontier Airlines
8:55 pmDEN
2h 22m
Nonstop
10:17 pmONT

Round-trip total · 1 adult · Taxes included

Fri, Nov 20 – Mon, Nov 23

Southwest Airlines
8:45 amONT
2h 10m
Nonstop
11:55 amDEN
Southwest Airlines
9:00 pmDEN
2h 30m
Nonstop
10:30 pmONT

Round-trip total · 1 adult · Taxes included

Fri, Nov 20 – Mon, Nov 23

United Airlines
1:40 pmONT
2h 15m
Nonstop
4:55 pmDEN
United Airlines
11:15 amDEN
2h 18m
Nonstop
12:33 pmONT

Round-trip total · 1 adult · Taxes included

Fri, Nov 27 – Fri, Dec 4

Southwest Airlines
8:45 amONT
2h 10m
Nonstop
11:55 amDEN
Southwest Airlines
12:45 pmDEN
2h 20m
Nonstop
2:05 pmONT

Round-trip total · 1 adult · Taxes included

Show 14 more flights

Fri, Nov 27 – Fri, Dec 4

Southwest Airlines
1:55 pmONT
2h 10m
Nonstop
5:05 pmDEN
Southwest Airlines
12:45 pmDEN
2h 20m
Nonstop
2:05 pmONT

Round-trip total · 1 adult · Taxes included

Fri, Nov 27 – Fri, Dec 4

United Airlines
5:00 amONT
2h 17m
Nonstop
8:17 amDEN
United Airlines
11:15 amDEN
2h 18m
Nonstop
12:33 pmONT

Round-trip total · 1 adult · Taxes included

Fri, Nov 27 – Fri, Dec 4

United Airlines
1:40 pmONT
2h 15m
Nonstop
4:55 pmDEN
United Airlines
11:15 amDEN
2h 18m
Nonstop
12:33 pmONT

Round-trip total · 1 adult · Taxes included

Fri, Nov 20 – Mon, Nov 23

Frontier Airlines
8:44 amONT
5h
LAS · 1h 56m
2:44 pmDEN
Frontier Airlines
10:48 pmDEN
2h 25m
Nonstop
12:13 am+1ONT

Round-trip total · 1 adult · Taxes included

Fri, Nov 27 – Fri, Dec 4

Frontier Airlines
8:44 amONT
5h
LAS · 1h 56m
2:44 pmDEN
Frontier Airlines
8:55 pmDEN
2h 22m
Nonstop
10:17 pmONT

Round-trip total · 1 adult · Taxes included

Fri, Nov 20 – Mon, Nov 23

Southwest Airlines
2:00 pmONT
4h 5m
PHX · 1h
7:05 pmDEN
Southwest Airlines
9:00 pmDEN
2h 30m
Nonstop
10:30 pmONT

Round-trip total · 1 adult · Taxes included

Fri, Nov 20 – Mon, Nov 23

Southwest Airlines
5:00 pmONT
5h 35m
LAS · 2h 35m
11:35 pmDEN
Southwest Airlines
9:00 pmDEN
2h 30m
Nonstop
10:30 pmONT

Round-trip total · 1 adult · Taxes included

Fri, Nov 20 – Mon, Nov 23

Southwest Airlines
1:30 pmONT
5h 40m
SMF · 1h 55m
8:10 pmDEN
Southwest Airlines
9:00 pmDEN
2h 30m
Nonstop
10:30 pmONT

Round-trip total · 1 adult · Taxes included

Fri, Nov 20 – Mon, Nov 23

United Airlines
6:00 amONT
5h 9m
SFO · 1h
12:09 pmDEN
United Airlines
11:15 amDEN
2h 18m
Nonstop
12:33 pmONT

Round-trip total · 1 adult · Taxes included

Fri, Nov 27 – Fri, Dec 4

Southwest Airlines
2:00 pmONT
4h 5m
PHX · 1h
7:05 pmDEN
Southwest Airlines
12:45 pmDEN
2h 20m
Nonstop
2:05 pmONT

Round-trip total · 1 adult · Taxes included

Fri, Nov 27 – Fri, Dec 4

Southwest Airlines
1:30 pmONT
5h 40m
SMF · 1h 55m
8:10 pmDEN
Southwest Airlines
12:45 pmDEN
2h 20m
Nonstop
2:05 pmONT

Round-trip total · 1 adult · Taxes included

Fri, Nov 27 – Fri, Dec 4

Southwest Airlines
5:00 pmONT
5h 35m
LAS · 2h 35m
11:35 pmDEN
Southwest Airlines
12:45 pmDEN
2h 20m
Nonstop
2:05 pmONT

Round-trip total · 1 adult · Taxes included

Fri, Nov 27 – Fri, Dec 4

United Airlines
6:00 amONT
5h 9m
SFO · 1h
12:09 pmDEN
United Airlines
11:15 amDEN
2h 18m
Nonstop
12:33 pmONT

Round-trip total · 1 adult · Taxes included

Fri, Nov 27 – Fri, Dec 4

American Airlines
9:50 amONT
4h 24m
PHX · 1h 1m
3:14 pmDEN
American Airlines
12:06 pmDEN
5h 14m
PHX · 1h 53m
4:20 pmONT

Round-trip total · 1 adult · Taxes included

One-way flights

Fri, Nov 20 · One way

Frontier Airlines
6:30 amONT
2h 21m
Nonstop
9:51 amDEN

One-way total · 1 adult · Taxes included

Fri, Nov 20 · One way

Southwest Airlines
8:45 amONT
2h 10m
Nonstop
11:55 amDEN

One-way total · 1 adult · Taxes included

Fri, Nov 20 · One way

United Airlines
1:40 pmONT
2h 15m
Nonstop
4:55 pmDEN

One-way total · 1 adult · Taxes included

Fri, Nov 20 · One way

American Airlines
9:50 amONT
4h 24m
PHX · 1h 1m
3:14 pmDEN

One-way total · 1 adult · Taxes included

Fri, Nov 20 · One way

Southwest Airlines
1:55 pmONT
2h 10m
Nonstop
5:05 pmDEN

One-way total · 1 adult · Taxes included

Fri, Nov 20 · One way

United Airlines
5:00 amONT
2h 17m
Nonstop
8:17 amDEN

One-way total · 1 adult · Taxes included

Fri, Nov 20 · One way

Frontier Airlines
8:44 amONT
5h
LAS · 1h 56m
2:44 pmDEN

One-way total · 1 adult · Taxes included

Fri, Nov 20 · One way

Southwest Airlines
2:00 pmONT
4h 5m
PHX · 1h
7:05 pmDEN

One-way total · 1 adult · Taxes included

Show 3 more flights

Fri, Nov 20 · One way

Southwest Airlines
1:30 pmONT
5h 40m
SMF · 1h 55m
8:10 pmDEN

One-way total · 1 adult · Taxes included

Fri, Nov 20 · One way

Southwest Airlines
5:00 pmONT
5h 35m
LAS · 2h 35m
11:35 pmDEN

One-way total · 1 adult · Taxes included

Fri, Nov 20 · One way

United Airlines
6:00 amONT
5h 9m
SFO · 1h
12:09 pmDEN

One-way total · 1 adult · Taxes included

Make this trip yours

ONT ⇄ DEN

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 AirlinesF91500$65.002026-10-29T01:52:26Z
2026-11-20 → 2026-11-23Frontier AirlinesF91500 / F91261$120.002026-10-29T01:52:26Z
2026-11-20 · one waySouthwest AirlinesWN3301$140.002026-10-29T01:52:26Z
2026-11-20 · one wayUnited AirlinesUA1263$150.002026-10-29T01:52:26Z
2026-11-20 → 2026-11-23Southwest AirlinesWN1383 / WN2827$270.002026-10-29T01:52:26Z
2026-11-20 → 2026-11-23United AirlinesUA2446 / UA430$280.002026-10-29T01:52:26Z
2026-11-20 · one wayAmerican AirlinesAA1423 + AA3376$175.002026-10-29T01:52:26Z
2026-11-20 → 2026-11-23American AirlinesAA1423 + AA3376 / AA2447 + AA4144$330.002026-10-29T01:52:26Z
2026-11-27 → 2026-12-04Frontier AirlinesF91500 / F91499$144.002026-10-29T01:52:26Z
2026-11-20 · one waySouthwest AirlinesWN1383$140.002026-10-29T01:52:26Z
2026-11-20 · one wayUnited AirlinesUA2446$150.002026-10-29T01:52:26Z
2026-11-20 → 2026-11-23Southwest AirlinesWN3301 / WN2827$270.002026-10-29T01:52:26Z
2026-11-20 → 2026-11-23United AirlinesUA1263 / UA430$280.002026-10-29T01:52:26Z
2026-11-27 → 2026-12-04Southwest AirlinesWN3301 / WN2484$324.002026-10-29T01:52:26Z
2026-11-27 → 2026-12-04Southwest AirlinesWN1383 / WN2484$324.002026-10-29T01:52:26Z
2026-11-27 → 2026-12-04United AirlinesUA2446 / UA430$336.002026-10-29T01:52:26Z
2026-11-27 → 2026-12-04United AirlinesUA1263 / UA430$336.002026-10-29T01:52:26Z
2026-11-20 · one wayFrontier AirlinesF92232 + F91766$95.002026-10-29T01:52:26Z
2026-11-20 → 2026-11-23Frontier AirlinesF92232 + F91766 / F91261$150.002026-10-29T01:52:26Z
2026-11-20 · one waySouthwest AirlinesWN1533 + WN284$160.002026-10-29T01:52:26Z
2026-11-20 · one waySouthwest AirlinesWN3326 + WN1102$160.002026-10-29T01:52:26Z
2026-11-20 · one waySouthwest AirlinesWN1053 + WN1053$160.002026-10-29T01:52:26Z
2026-11-20 · one wayUnited AirlinesUA2363 + UA1068$175.002026-10-29T01:52:26Z
2026-11-27 → 2026-12-04Frontier AirlinesF92232 + F91766 / F91499$186.002026-10-29T01:52:26Z
2026-11-20 → 2026-11-23Southwest AirlinesWN1533 + WN284 / WN2827$285.002026-10-29T01:52:26Z
2026-11-20 → 2026-11-23Southwest AirlinesWN1053 + WN1053 / WN2827$285.002026-10-29T01:52:26Z
2026-11-20 → 2026-11-23Southwest AirlinesWN3326 + WN1102 / WN2827$285.002026-10-29T01:52:26Z
2026-11-20 → 2026-11-23United AirlinesUA2363 + UA1068 / UA430$305.002026-10-29T01:52:26Z
2026-11-27 → 2026-12-04Southwest AirlinesWN1533 + WN284 / WN2484$345.002026-10-29T01:52:26Z
2026-11-27 → 2026-12-04Southwest AirlinesWN3326 + WN1102 / WN2484$345.002026-10-29T01:52:26Z
2026-11-27 → 2026-12-04Southwest AirlinesWN1053 + WN1053 / WN2484$345.002026-10-29T01:52:26Z
2026-11-27 → 2026-12-04United AirlinesUA2363 + UA1068 / UA430$371.002026-10-29T01:52:26Z
2026-11-27 → 2026-12-04American AirlinesAA1423 + AA3376 / AA2447 + AA4144$396.002026-10-29T01:52:26Z

2026-11-20 · one way · $65.00

  • Frontier Airlines F91500: ONT 2026-11-20 06:30:00 → DEN 2026-11-20 09:51:00; nonstop; 141 minutes. Local airport times.

2026-11-20 → 2026-11-23 · $120.00

  • Frontier Airlines F91500: ONT 2026-11-20 06:30:00 → DEN 2026-11-20 09:51:00; nonstop; 141 minutes. Local airport times.
  • Frontier Airlines F91261: DEN 2026-11-23 22:48:00 → ONT 2026-11-24 00:13:00; nonstop; 145 minutes. Local airport times.

2026-11-20 · one way · $140.00

  • Southwest Airlines WN3301: ONT 2026-11-20 08:45:00 → DEN 2026-11-20 11:55:00; nonstop; 130 minutes. Local airport times.

2026-11-20 · one way · $150.00

  • United Airlines UA1263: ONT 2026-11-20 13:40:00 → DEN 2026-11-20 16:55:00; nonstop; 135 minutes. Local airport times.

2026-11-20 → 2026-11-23 · $270.00

  • Southwest Airlines WN1383: ONT 2026-11-20 13:55:00 → DEN 2026-11-20 17:05:00; nonstop; 130 minutes. Local airport times.
  • Southwest Airlines WN2827: DEN 2026-11-23 21:00:00 → ONT 2026-11-23 22:30:00; nonstop; 150 minutes. Local airport times.

2026-11-20 → 2026-11-23 · $280.00

  • United Airlines UA2446: ONT 2026-11-20 05:00:00 → DEN 2026-11-20 08:17:00; nonstop; 137 minutes. Local airport times.
  • United Airlines UA430: DEN 2026-11-23 11:15:00 → ONT 2026-11-23 12:33:00; nonstop; 138 minutes. Local airport times.

2026-11-20 · one way · $175.00

  • American Airlines AA1423 / AA3376: ONT 2026-11-20 09:50:00 → DEN 2026-11-20 15:14:00; 1 stop(s) via PHX; 264 minutes. Local airport times.
    • AA1423: ONT 2026-11-20 09:50:00 → PHX 2026-11-20 12:15:00; layover at PHX: 61 minutes.
    • AA3376: PHX 2026-11-20 13:16:00 → DEN 2026-11-20 15:14:00.

2026-11-20 → 2026-11-23 · $330.00

  • American Airlines AA1423 / AA3376: ONT 2026-11-20 09:50:00 → DEN 2026-11-20 15:14:00; 1 stop(s) via PHX; 264 minutes. Local airport times.
    • AA1423: ONT 2026-11-20 09:50:00 → PHX 2026-11-20 12:15:00; layover at PHX: 61 minutes.
    • AA3376: PHX 2026-11-20 13:16:00 → DEN 2026-11-20 15:14:00.
  • American Airlines AA2447 / AA4144: DEN 2026-11-23 12:06:00 → ONT 2026-11-23 16:20:00; 1 stop(s) via PHX; 314 minutes. Local airport times.
    • AA2447: DEN 2026-11-23 12:06:00 → PHX 2026-11-23 14:03:00; layover at PHX: 113 minutes.
    • AA4144: PHX 2026-11-23 15:56:00 → ONT 2026-11-23 16:20:00.

2026-11-27 → 2026-12-04 · $144.00

  • Frontier Airlines F91500: ONT 2026-11-27 06:30:00 → DEN 2026-11-27 09:51:00; nonstop; 141 minutes. Local airport times.
  • Frontier Airlines F91499: DEN 2026-12-04 20:55:00 → ONT 2026-12-04 22:17:00; nonstop; 142 minutes. Local airport times.

2026-11-20 · one way · $140.00

  • Southwest Airlines WN1383: ONT 2026-11-20 13:55:00 → DEN 2026-11-20 17:05:00; nonstop; 130 minutes. Local airport times.

2026-11-20 · one way · $150.00

  • United Airlines UA2446: ONT 2026-11-20 05:00:00 → DEN 2026-11-20 08:17:00; nonstop; 137 minutes. Local airport times.

2026-11-20 → 2026-11-23 · $270.00

  • Southwest Airlines WN3301: ONT 2026-11-20 08:45:00 → DEN 2026-11-20 11:55:00; nonstop; 130 minutes. Local airport times.
  • Southwest Airlines WN2827: DEN 2026-11-23 21:00:00 → ONT 2026-11-23 22:30:00; nonstop; 150 minutes. Local airport times.

2026-11-20 → 2026-11-23 · $280.00

  • United Airlines UA1263: ONT 2026-11-20 13:40:00 → DEN 2026-11-20 16:55:00; nonstop; 135 minutes. Local airport times.
  • United Airlines UA430: DEN 2026-11-23 11:15:00 → ONT 2026-11-23 12:33:00; nonstop; 138 minutes. Local airport times.

2026-11-27 → 2026-12-04 · $324.00

  • Southwest Airlines WN3301: ONT 2026-11-27 08:45:00 → DEN 2026-11-27 11:55:00; nonstop; 130 minutes. Local airport times.
  • Southwest Airlines WN2484: DEN 2026-12-04 12:45:00 → ONT 2026-12-04 14:05:00; nonstop; 140 minutes. Local airport times.

2026-11-27 → 2026-12-04 · $324.00

  • Southwest Airlines WN1383: ONT 2026-11-27 13:55:00 → DEN 2026-11-27 17:05:00; nonstop; 130 minutes. Local airport times.
  • Southwest Airlines WN2484: DEN 2026-12-04 12:45:00 → ONT 2026-12-04 14:05:00; nonstop; 140 minutes. Local airport times.

2026-11-27 → 2026-12-04 · $336.00

  • United Airlines UA2446: ONT 2026-11-27 05:00:00 → DEN 2026-11-27 08:17:00; nonstop; 137 minutes. Local airport times.
  • United Airlines UA430: DEN 2026-12-04 11:15:00 → ONT 2026-12-04 12:33:00; nonstop; 138 minutes. Local airport times.

2026-11-27 → 2026-12-04 · $336.00

  • United Airlines UA1263: ONT 2026-11-27 13:40:00 → DEN 2026-11-27 16:55:00; nonstop; 135 minutes. Local airport times.
  • United Airlines UA430: DEN 2026-12-04 11:15:00 → ONT 2026-12-04 12:33:00; nonstop; 138 minutes. Local airport times.

2026-11-20 · one way · $95.00

  • Frontier Airlines F92232 / F91766: ONT 2026-11-20 08:44:00 → DEN 2026-11-20 14:44:00; 1 stop(s) via LAS; 300 minutes. Local airport times.
    • F92232: ONT 2026-11-20 08:44:00 → LAS 2026-11-20 09:50:00; layover at LAS: 116 minutes.
    • F91766: LAS 2026-11-20 11:46:00 → DEN 2026-11-20 14:44:00.

2026-11-20 → 2026-11-23 · $150.00

  • Frontier Airlines F92232 / F91766: ONT 2026-11-20 08:44:00 → DEN 2026-11-20 14:44:00; 1 stop(s) via LAS; 300 minutes. Local airport times.
    • F92232: ONT 2026-11-20 08:44:00 → LAS 2026-11-20 09:50:00; layover at LAS: 116 minutes.
    • F91766: LAS 2026-11-20 11:46:00 → DEN 2026-11-20 14:44:00.
  • Frontier Airlines F91261: DEN 2026-11-23 22:48:00 → ONT 2026-11-24 00:13:00; nonstop; 145 minutes. Local airport times.

2026-11-20 · one way · $160.00

  • Southwest Airlines WN1533 / WN284: ONT 2026-11-20 14:00:00 → DEN 2026-11-20 19:05:00; 1 stop(s) via PHX; 245 minutes. Local airport times.
    • WN1533: ONT 2026-11-20 14:00:00 → PHX 2026-11-20 16:15:00; layover at PHX: 60 minutes.
    • WN284: PHX 2026-11-20 17:15:00 → DEN 2026-11-20 19:05:00.

2026-11-20 · one way · $160.00

  • Southwest Airlines WN3326 / WN1102: ONT 2026-11-20 13:30:00 → DEN 2026-11-20 20:10:00; 1 stop(s) via SMF; 340 minutes. Local airport times.
    • WN3326: ONT 2026-11-20 13:30:00 → SMF 2026-11-20 14:55:00; layover at SMF: 115 minutes.
    • WN1102: SMF 2026-11-20 16:50:00 → DEN 2026-11-20 20:10:00.

2026-11-20 · one way · $160.00

  • Southwest Airlines WN1053 / WN1053: ONT 2026-11-20 17:00:00 → DEN 2026-11-20 23:35:00; 1 stop(s) via LAS; 335 minutes. Local airport times.
    • WN1053: ONT 2026-11-20 17:00:00 → LAS 2026-11-20 18:05:00; layover at LAS: 155 minutes.
    • WN1053: LAS 2026-11-20 20:40:00 → DEN 2026-11-20 23:35:00.

2026-11-20 · one way · $175.00

  • United Airlines UA2363 / UA1068: ONT 2026-11-20 06:00:00 → DEN 2026-11-20 12:09:00; 1 stop(s) via SFO; 309 minutes. Local airport times.
    • UA2363: ONT 2026-11-20 06:00:00 → SFO 2026-11-20 07:30:00; layover at SFO: 60 minutes.
    • UA1068: SFO 2026-11-20 08:30:00 → DEN 2026-11-20 12:09:00.

2026-11-27 → 2026-12-04 · $186.00

  • Frontier Airlines F92232 / F91766: ONT 2026-11-27 08:44:00 → DEN 2026-11-27 14:44:00; 1 stop(s) via LAS; 300 minutes. Local airport times.
    • F92232: ONT 2026-11-27 08:44:00 → LAS 2026-11-27 09:50:00; layover at LAS: 116 minutes.
    • F91766: LAS 2026-11-27 11:46:00 → DEN 2026-11-27 14:44:00.
  • Frontier Airlines F91499: DEN 2026-12-04 20:55:00 → ONT 2026-12-04 22:17:00; nonstop; 142 minutes. Local airport times.

2026-11-20 → 2026-11-23 · $285.00

  • Southwest Airlines WN1533 / WN284: ONT 2026-11-20 14:00:00 → DEN 2026-11-20 19:05:00; 1 stop(s) via PHX; 245 minutes. Local airport times.
    • WN1533: ONT 2026-11-20 14:00:00 → PHX 2026-11-20 16:15:00; layover at PHX: 60 minutes.
    • WN284: PHX 2026-11-20 17:15:00 → DEN 2026-11-20 19:05:00.
  • Southwest Airlines WN2827: DEN 2026-11-23 21:00:00 → ONT 2026-11-23 22:30:00; nonstop; 150 minutes. Local airport times.

2026-11-20 → 2026-11-23 · $285.00

  • Southwest Airlines WN1053 / WN1053: ONT 2026-11-20 17:00:00 → DEN 2026-11-20 23:35:00; 1 stop(s) via LAS; 335 minutes. Local airport times.
    • WN1053: ONT 2026-11-20 17:00:00 → LAS 2026-11-20 18:05:00; layover at LAS: 155 minutes.
    • WN1053: LAS 2026-11-20 20:40:00 → DEN 2026-11-20 23:35:00.
  • Southwest Airlines WN2827: DEN 2026-11-23 21:00:00 → ONT 2026-11-23 22:30:00; nonstop; 150 minutes. Local airport times.

2026-11-20 → 2026-11-23 · $285.00

  • Southwest Airlines WN3326 / WN1102: ONT 2026-11-20 13:30:00 → DEN 2026-11-20 20:10:00; 1 stop(s) via SMF; 340 minutes. Local airport times.
    • WN3326: ONT 2026-11-20 13:30:00 → SMF 2026-11-20 14:55:00; layover at SMF: 115 minutes.
    • WN1102: SMF 2026-11-20 16:50:00 → DEN 2026-11-20 20:10:00.
  • Southwest Airlines WN2827: DEN 2026-11-23 21:00:00 → ONT 2026-11-23 22:30:00; nonstop; 150 minutes. Local airport times.

2026-11-20 → 2026-11-23 · $305.00

  • United Airlines UA2363 / UA1068: ONT 2026-11-20 06:00:00 → DEN 2026-11-20 12:09:00; 1 stop(s) via SFO; 309 minutes. Local airport times.
    • UA2363: ONT 2026-11-20 06:00:00 → SFO 2026-11-20 07:30:00; layover at SFO: 60 minutes.
    • UA1068: SFO 2026-11-20 08:30:00 → DEN 2026-11-20 12:09:00.
  • United Airlines UA430: DEN 2026-11-23 11:15:00 → ONT 2026-11-23 12:33:00; nonstop; 138 minutes. Local airport times.

2026-11-27 → 2026-12-04 · $345.00

  • Southwest Airlines WN1533 / WN284: ONT 2026-11-27 14:00:00 → DEN 2026-11-27 19:05:00; 1 stop(s) via PHX; 245 minutes. Local airport times.
    • WN1533: ONT 2026-11-27 14:00:00 → PHX 2026-11-27 16:15:00; layover at PHX: 60 minutes.
    • WN284: PHX 2026-11-27 17:15:00 → DEN 2026-11-27 19:05:00.
  • Southwest Airlines WN2484: DEN 2026-12-04 12:45:00 → ONT 2026-12-04 14:05:00; nonstop; 140 minutes. Local airport times.

2026-11-27 → 2026-12-04 · $345.00

  • Southwest Airlines WN3326 / WN1102: ONT 2026-11-27 13:30:00 → DEN 2026-11-27 20:10:00; 1 stop(s) via SMF; 340 minutes. Local airport times.
    • WN3326: ONT 2026-11-27 13:30:00 → SMF 2026-11-27 14:55:00; layover at SMF: 115 minutes.
    • WN1102: SMF 2026-11-27 16:50:00 → DEN 2026-11-27 20:10:00.
  • Southwest Airlines WN2484: DEN 2026-12-04 12:45:00 → ONT 2026-12-04 14:05:00; nonstop; 140 minutes. Local airport times.

2026-11-27 → 2026-12-04 · $345.00

  • Southwest Airlines WN1053 / WN1053: ONT 2026-11-27 17:00:00 → DEN 2026-11-27 23:35:00; 1 stop(s) via LAS; 335 minutes. Local airport times.
    • WN1053: ONT 2026-11-27 17:00:00 → LAS 2026-11-27 18:05:00; layover at LAS: 155 minutes.
    • WN1053: LAS 2026-11-27 20:40:00 → DEN 2026-11-27 23:35:00.
  • Southwest Airlines WN2484: DEN 2026-12-04 12:45:00 → ONT 2026-12-04 14:05:00; nonstop; 140 minutes. Local airport times.

2026-11-27 → 2026-12-04 · $371.00

  • United Airlines UA2363 / UA1068: ONT 2026-11-27 06:00:00 → DEN 2026-11-27 12:09:00; 1 stop(s) via SFO; 309 minutes. Local airport times.
    • UA2363: ONT 2026-11-27 06:00:00 → SFO 2026-11-27 07:30:00; layover at SFO: 60 minutes.
    • UA1068: SFO 2026-11-27 08:30:00 → DEN 2026-11-27 12:09:00.
  • United Airlines UA430: DEN 2026-12-04 11:15:00 → ONT 2026-12-04 12:33:00; nonstop; 138 minutes. Local airport times.

2026-11-27 → 2026-12-04 · $396.00

  • American Airlines AA1423 / AA3376: ONT 2026-11-27 09:50:00 → DEN 2026-11-27 15:14:00; 1 stop(s) via PHX; 264 minutes. Local airport times.
    • AA1423: ONT 2026-11-27 09:50:00 → PHX 2026-11-27 12:15:00; layover at PHX: 61 minutes.
    • AA3376: PHX 2026-11-27 13:16:00 → DEN 2026-11-27 15:14:00.
  • American Airlines AA2447 / AA4144: DEN 2026-12-04 12:06:00 → ONT 2026-12-04 16:20:00; 1 stop(s) via PHX; 314 minutes. Local airport times.
    • AA2447: DEN 2026-12-04 12:06:00 → PHX 2026-12-04 14:03:00; layover at PHX: 113 minutes.
    • AA4144: PHX 2026-12-04 15:56:00 → ONT 2026-12-04 16:20:00.

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