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Route overview: Los Angeles to Chicago (ORD) flight deals

Ontario → Chicago

Dec 9, 2026 · choose your return date

ONT → ORD1 adulteconomyOne way and round trips

30 flight options · 3 airlines

Choose your return date

One-way flights and round trips by duration. Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

December 2026

Dec 9, 2026 · One wayFrontier AirlinesUp to 1 stop each way$110.00 Dec 9, 2026 · One wayUnited AirlinesNonstop$210.00 Dec 9, 2026 – Dec 10, 2026 · 1 nightFrontier AirlinesUp to 1 stop each way$205.00 Dec 9, 2026 – Dec 10, 2026 · 1 nightUnited AirlinesNonstop$380.00 Dec 9, 2026 – Dec 11, 2026 · 2 nightsFrontier AirlinesUp to 1 stop each way$205.00 Dec 9, 2026 – Dec 11, 2026 · 2 nightsAmerican AirlinesUp to 1 stop each way$350.00 Dec 9, 2026 – Dec 12, 2026 · 3 nightsFrontier AirlinesUp to 1 stop each way$205.00 Dec 9, 2026 – Dec 12, 2026 · 3 nightsAmerican AirlinesUp to 1 stop each way$350.00 Dec 9, 2026 – Dec 13, 2026 · 4 nightsFrontier AirlinesUp to 1 stop each way$205.00 Dec 9, 2026 – Dec 13, 2026 · 4 nightsAmerican AirlinesUp to 1 stop each way$350.00 Dec 9, 2026 – Dec 14, 2026 · 5 nightsFrontier AirlinesUp to 1 stop each way$205.00 Dec 9, 2026 – Dec 14, 2026 · 5 nightsUnited AirlinesNonstop$380.00 Dec 9, 2026 – Dec 15, 2026 · 6 nightsFrontier AirlinesUp to 1 stop each way$205.00 Dec 9, 2026 – Dec 15, 2026 · 6 nightsUnited AirlinesNonstop$380.00 Dec 9, 2026 – Dec 16, 2026 · 7 nightsFrontier AirlinesUp to 1 stop each way$205.00 Dec 9, 2026 – Dec 16, 2026 · 7 nightsAmerican AirlinesUp to 1 stop each way$350.00 Dec 9, 2026 – Dec 17, 2026 · 8 nightsFrontier AirlinesUp to 1 stop each way$205.00 Dec 9, 2026 – Dec 17, 2026 · 8 nightsUnited AirlinesNonstop$380.00 Dec 9, 2026 – Dec 18, 2026 · 9 nightsFrontier AirlinesUp to 1 stop each way$246.00 Dec 9, 2026 – Dec 18, 2026 · 9 nightsAmerican AirlinesUp to 1 stop each way$420.00 Dec 9, 2026 – Dec 19, 2026 · 10 nightsFrontier AirlinesUp to 1 stop each way$246.00 Dec 9, 2026 – Dec 19, 2026 · 10 nightsAmerican AirlinesUp to 1 stop each way$420.00 Dec 9, 2026 – Dec 20, 2026 · 11 nightsFrontier AirlinesUp to 1 stop each way$246.00 Dec 9, 2026 – Dec 20, 2026 · 11 nightsAmerican AirlinesUp to 1 stop each way$420.00 Dec 9, 2026 – Dec 21, 2026 · 12 nightsFrontier AirlinesUp to 1 stop each way$246.00 Dec 9, 2026 – Dec 21, 2026 · 12 nightsUnited AirlinesNonstop$456.00 Dec 9, 2026 – Dec 22, 2026 · 13 nightsFrontier AirlinesUp to 1 stop each way$246.00 Dec 9, 2026 – Dec 22, 2026 · 13 nightsUnited AirlinesNonstop$456.00 Dec 9, 2026 – Dec 23, 2026 · 14 nightsFrontier AirlinesUp to 1 stop each way$246.00 Dec 9, 2026 – Dec 23, 2026 · 14 nightsAmerican AirlinesUp to 1 stop each way$420.00

Flights for your trip

  1. Wed, Dec 9 · One way

    Frontier Airlines
    8:35 pmONT
    6h 38m
    LAS · 1h 45m
    5:13 am+1ORD

    One-way total · 1 adult · Taxes included

  2. Wed, Dec 9 · One way

    United Airlines
    11:52 pmONT
    3h 54m
    Nonstop
    5:46 am+1ORD

    One-way total · 1 adult · Taxes included

  3. Wed, Dec 9 – Thu, Dec 10

    Frontier Airlines
    8:35 pmONT
    6h 38m
    LAS · 1h 45m
    5:13 am+1ORD
    Frontier Airlines
    6:21 amORD
    7h 30m
    LAS · 2h 9m
    11:51 amONT

    Round-trip total · 1 adult · Taxes included

  4. Wed, Dec 9 – Thu, Dec 10

    United Airlines
    11:52 pmONT
    3h 54m
    Nonstop
    5:46 am+1ORD
    United Airlines
    4:15 pmORD
    4h 32m
    Nonstop
    6:47 pmONT

    Round-trip total · 1 adult · Taxes included

  5. Wed, Dec 9 – Fri, Dec 11

    Frontier Airlines
    8:35 pmONT
    6h 38m
    LAS · 1h 45m
    5:13 am+1ORD
    Frontier Airlines
    6:21 amORD
    7h 30m
    LAS · 2h 9m
    11:51 amONT

    Round-trip total · 1 adult · Taxes included

  6. Wed, Dec 9 – Fri, Dec 11

    American Airlines
    12:51 pmONT
    7h 14m
    DFW · 1h 52m
    10:05 pmORD
    American Airlines
    1:26 pmORD
    7h 55m
    PHX · 2h 37m
    7:21 pmONT

    Round-trip total · 1 adult · Taxes included

  7. Wed, Dec 9 – Sat, Dec 12

    Frontier Airlines
    8:35 pmONT
    6h 38m
    LAS · 1h 45m
    5:13 am+1ORD
    Frontier Airlines
    6:21 amORD
    7h 30m
    LAS · 2h 9m
    11:51 amONT

    Round-trip total · 1 adult · Taxes included

  8. Wed, Dec 9 – Sat, Dec 12

    American Airlines
    12:51 pmONT
    7h 14m
    DFW · 1h 52m
    10:05 pmORD
    American Airlines
    1:26 pmORD
    7h 55m
    PHX · 2h 37m
    7:21 pmONT

    Round-trip total · 1 adult · Taxes included

  9. Wed, Dec 9 – Sun, Dec 13

    Frontier Airlines
    8:35 pmONT
    6h 38m
    LAS · 1h 45m
    5:13 am+1ORD
    Frontier Airlines
    6:21 amORD
    7h 30m
    LAS · 2h 9m
    11:51 amONT

    Round-trip total · 1 adult · Taxes included

  10. Wed, Dec 9 – Sun, Dec 13

    American Airlines
    12:51 pmONT
    7h 14m
    DFW · 1h 52m
    10:05 pmORD
    American Airlines
    6:59 amORD
    8h 25m
    DFW · 2h 18m
    1:24 pmONT

    Round-trip total · 1 adult · Taxes included

  11. Wed, Dec 9 – Tue, Dec 15

    Frontier Airlines
    8:35 pmONT
    6h 38m
    LAS · 1h 45m
    5:13 am+1ORD
    Frontier Airlines
    6:21 amORD
    7h 30m
    LAS · 2h 9m
    11:51 amONT

    Round-trip total · 1 adult · Taxes included

  12. Wed, Dec 9 – Tue, Dec 15

    United Airlines
    11:52 pmONT
    3h 54m
    Nonstop
    5:46 am+1ORD
    United Airlines
    4:15 pmORD
    4h 32m
    Nonstop
    6:47 pmONT

    Round-trip total · 1 adult · Taxes included

  13. Wed, Dec 9 – Wed, Dec 16

    Frontier Airlines
    8:35 pmONT
    6h 38m
    LAS · 1h 45m
    5:13 am+1ORD
    Frontier Airlines
    6:21 amORD
    7h 30m
    LAS · 2h 9m
    11:51 amONT

    Round-trip total · 1 adult · Taxes included

  14. Wed, Dec 9 – Wed, Dec 16

    American Airlines
    12:51 pmONT
    7h 14m
    DFW · 1h 52m
    10:05 pmORD
    American Airlines
    6:59 amORD
    8h 25m
    DFW · 2h 18m
    1:24 pmONT

    Round-trip total · 1 adult · Taxes included

  15. Wed, Dec 9 – Thu, Dec 17

    Frontier Airlines
    8:35 pmONT
    6h 38m
    LAS · 1h 45m
    5:13 am+1ORD
    Frontier Airlines
    6:21 amORD
    7h 30m
    LAS · 2h 9m
    11:51 amONT

    Round-trip total · 1 adult · Taxes included

  16. Wed, Dec 9 – Thu, Dec 17

    United Airlines
    11:52 pmONT
    3h 54m
    Nonstop
    5:46 am+1ORD
    United Airlines
    4:15 pmORD
    4h 32m
    Nonstop
    6:47 pmONT

    Round-trip total · 1 adult · Taxes included

  17. Wed, Dec 9 – Sat, Dec 19

    Frontier Airlines
    8:35 pmONT
    6h 38m
    LAS · 1h 45m
    5:13 am+1ORD
    Frontier Airlines
    6:21 amORD
    7h 30m
    LAS · 2h 9m
    11:51 amONT

    Round-trip total · 1 adult · Taxes included

  18. Wed, Dec 9 – Sat, Dec 19

    American Airlines
    12:51 pmONT
    7h 14m
    DFW · 1h 52m
    10:05 pmORD
    American Airlines
    1:26 pmORD
    7h 55m
    PHX · 2h 37m
    7:21 pmONT

    Round-trip total · 1 adult · Taxes included

  19. Wed, Dec 9 – Sun, Dec 20

    Frontier Airlines
    8:35 pmONT
    6h 38m
    LAS · 1h 45m
    5:13 am+1ORD
    Frontier Airlines
    6:21 amORD
    7h 30m
    LAS · 2h 9m
    11:51 amONT

    Round-trip total · 1 adult · Taxes included

  20. Wed, Dec 9 – Sun, Dec 20

    American Airlines
    12:51 pmONT
    7h 14m
    DFW · 1h 52m
    10:05 pmORD
    American Airlines
    6:59 amORD
    8h 25m
    DFW · 2h 18m
    1:24 pmONT

    Round-trip total · 1 adult · Taxes included

  21. Wed, Dec 9 – Mon, Dec 21

    Frontier Airlines
    8:35 pmONT
    6h 38m
    LAS · 1h 45m
    5:13 am+1ORD
    Frontier Airlines
    6:21 amORD
    7h 30m
    LAS · 2h 9m
    11:51 amONT

    Round-trip total · 1 adult · Taxes included

  22. Wed, Dec 9 – Mon, Dec 21

    United Airlines
    11:52 pmONT
    3h 54m
    Nonstop
    5:46 am+1ORD
    United Airlines
    4:15 pmORD
    4h 32m
    Nonstop
    6:47 pmONT

    Round-trip total · 1 adult · Taxes included

  23. Wed, Dec 9 – Wed, Dec 23

    Frontier Airlines
    8:35 pmONT
    6h 38m
    LAS · 1h 45m
    5:13 am+1ORD
    Frontier Airlines
    6:21 amORD
    7h 30m
    LAS · 2h 9m
    11:51 amONT

    Round-trip total · 1 adult · Taxes included

  24. Wed, Dec 9 – Wed, Dec 23

    American Airlines
    12:51 pmONT
    7h 14m
    DFW · 1h 52m
    10:05 pmORD
    American Airlines
    6:59 amORD
    8h 25m
    DFW · 2h 18m
    1:24 pmONT

    Round-trip total · 1 adult · Taxes included

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1 of 24

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ONT ⇄ ORD

Economy

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Explore this route

All dates for this routeDec 8, 2026 · Return optionsDec 10, 2026 · Return optionsHotels in Chicago with Axel
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Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

Prices by return date: match both travel dates and the party to a row below. Each total is for that exact trip, issued at the time shown. To book or select flights, follow that row's price link; it keeps the exact dates and travelers.

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2026-12-09 · one wayUnited AirlinesUA1813Axel-exclusive $210.002026-10-29T01:52:33Z
2026-12-09 · one wayFrontier AirlinesF94206 + F92146Axel-exclusive $110.002026-10-29T01:52:33Z
2026-12-09 → 2026-12-10United AirlinesUA1813 / UA1904Axel-exclusive $380.002026-10-29T01:52:33Z
2026-12-09 → 2026-12-10Frontier AirlinesF94206 + F92146 / F92145 + F91357Axel-exclusive $205.002026-10-29T01:52:33Z
2026-12-09 → 2026-12-11Frontier AirlinesF94206 + F92146 / F92145 + F91357Axel-exclusive $205.002026-10-29T01:52:33Z
2026-12-09 → 2026-12-11American AirlinesAA2198 + AA572 / AA834 + AA1666Axel-exclusive $350.002026-10-29T01:52:33Z
2026-12-09 → 2026-12-12Frontier AirlinesF94206 + F92146 / F92145 + F91357Axel-exclusive $205.002026-10-29T01:52:33Z
2026-12-09 → 2026-12-12American AirlinesAA2198 + AA572 / AA834 + AA1666Axel-exclusive $350.002026-10-29T01:52:33Z
2026-12-09 → 2026-12-13Frontier AirlinesF94206 + F92146 / F92145 + F91357Axel-exclusive $205.002026-10-29T01:52:33Z
2026-12-09 → 2026-12-13American AirlinesAA2198 + AA572 / AA2421 + AA2635Axel-exclusive $350.002026-10-29T01:52:33Z
2026-12-09 → 2026-12-14United AirlinesUA1813 / UA1904Axel-exclusive $380.002026-10-29T01:52:33Z
2026-12-09 → 2026-12-14Frontier AirlinesF94206 + F92146 / F92145 + F91357Axel-exclusive $205.002026-10-29T01:52:33Z
2026-12-09 → 2026-12-15United AirlinesUA1813 / UA1904Axel-exclusive $380.002026-10-29T01:52:33Z
2026-12-09 → 2026-12-15Frontier AirlinesF94206 + F92146 / F92145 + F91357Axel-exclusive $205.002026-10-29T01:52:33Z
2026-12-09 → 2026-12-16Frontier AirlinesF94206 + F92146 / F92145 + F91357Axel-exclusive $205.002026-10-29T01:52:33Z
2026-12-09 → 2026-12-16American AirlinesAA2198 + AA572 / AA2421 + AA2635Axel-exclusive $350.002026-10-29T01:52:33Z
2026-12-09 → 2026-12-17United AirlinesUA1813 / UA1904Axel-exclusive $380.002026-10-29T01:52:33Z
2026-12-09 → 2026-12-17Frontier AirlinesF94206 + F92146 / F92145 + F91357Axel-exclusive $205.002026-10-29T01:52:33Z
2026-12-09 → 2026-12-18Frontier AirlinesF94206 + F92146 / F92145 + F91357Axel-exclusive $246.002026-10-29T01:52:33Z
2026-12-09 → 2026-12-18American AirlinesAA2198 + AA572 / AA834 + AA1666Axel-exclusive $420.002026-10-29T01:52:33Z
2026-12-09 → 2026-12-19Frontier AirlinesF94206 + F92146 / F92145 + F91357Axel-exclusive $246.002026-10-29T01:52:33Z
2026-12-09 → 2026-12-19American AirlinesAA2198 + AA572 / AA834 + AA1666Axel-exclusive $420.002026-10-29T01:52:33Z
2026-12-09 → 2026-12-20Frontier AirlinesF94206 + F92146 / F92145 + F91357Axel-exclusive $246.002026-10-29T01:52:33Z
2026-12-09 → 2026-12-20American AirlinesAA2198 + AA572 / AA2421 + AA2635Axel-exclusive $420.002026-10-29T01:52:33Z
2026-12-09 → 2026-12-21United AirlinesUA1813 / UA1904Axel-exclusive $456.002026-10-29T01:52:33Z
2026-12-09 → 2026-12-21Frontier AirlinesF94206 + F92146 / F92145 + F91357Axel-exclusive $246.002026-10-29T01:52:33Z
2026-12-09 → 2026-12-22United AirlinesUA1813 / UA1904Axel-exclusive $456.002026-10-29T01:52:33Z
2026-12-09 → 2026-12-22Frontier AirlinesF94206 + F92146 / F92145 + F91357Axel-exclusive $246.002026-10-29T01:52:33Z
2026-12-09 → 2026-12-23Frontier AirlinesF94206 + F92146 / F92145 + F91357Axel-exclusive $246.002026-10-29T01:52:33Z
2026-12-09 → 2026-12-23American AirlinesAA2198 + AA572 / AA2421 + AA2635Axel-exclusive $420.002026-10-29T01:52:33Z

Route overview: Los Angeles to Chicago (ORD) flight deals

2026-12-09 · one way · Axel-exclusive $110.00

  • Frontier Airlines F94206 / F92146: ONT 2026-12-09 20:35:00 → ORD 2026-12-10 05:13:00; 1 stop(s) via LAS; 398 minutes. Local airport times.
    • F94206: ONT 2026-12-09 20:35:00 → LAS 2026-12-09 21:44:00; layover at LAS: 105 minutes.
    • F92146: LAS 2026-12-09 23:29:00 → ORD 2026-12-10 05:13:00.

2026-12-09 · one way · Axel-exclusive $210.00

  • United Airlines UA1813: ONT 2026-12-09 23:52:00 → ORD 2026-12-10 05:46:00; nonstop; 234 minutes. Local airport times.

2026-12-09 → 2026-12-10 · Axel-exclusive $205.00

  • Frontier Airlines F94206 / F92146: ONT 2026-12-09 20:35:00 → ORD 2026-12-10 05:13:00; 1 stop(s) via LAS; 398 minutes. Local airport times.
    • F94206: ONT 2026-12-09 20:35:00 → LAS 2026-12-09 21:44:00; layover at LAS: 105 minutes.
    • F92146: LAS 2026-12-09 23:29:00 → ORD 2026-12-10 05:13:00.
  • Frontier Airlines F92145 / F91357: ORD 2026-12-10 06:21:00 → ONT 2026-12-10 11:51:00; 1 stop(s) via LAS; 450 minutes. Local airport times.
    • F92145: ORD 2026-12-10 06:21:00 → LAS 2026-12-10 08:36:00; layover at LAS: 129 minutes.
    • F91357: LAS 2026-12-10 10:45:00 → ONT 2026-12-10 11:51:00.

2026-12-09 → 2026-12-10 · Axel-exclusive $380.00

  • United Airlines UA1813: ONT 2026-12-09 23:52:00 → ORD 2026-12-10 05:46:00; nonstop; 234 minutes. Local airport times.
  • United Airlines UA1904: ORD 2026-12-10 16:15:00 → ONT 2026-12-10 18:47:00; nonstop; 272 minutes. Local airport times.

2026-12-09 → 2026-12-11 · Axel-exclusive $205.00

  • Frontier Airlines F94206 / F92146: ONT 2026-12-09 20:35:00 → ORD 2026-12-10 05:13:00; 1 stop(s) via LAS; 398 minutes. Local airport times.
    • F94206: ONT 2026-12-09 20:35:00 → LAS 2026-12-09 21:44:00; layover at LAS: 105 minutes.
    • F92146: LAS 2026-12-09 23:29:00 → ORD 2026-12-10 05:13:00.
  • Frontier Airlines F92145 / F91357: ORD 2026-12-11 06:21:00 → ONT 2026-12-11 11:51:00; 1 stop(s) via LAS; 450 minutes. Local airport times.
    • F92145: ORD 2026-12-11 06:21:00 → LAS 2026-12-11 08:36:00; layover at LAS: 129 minutes.
    • F91357: LAS 2026-12-11 10:45:00 → ONT 2026-12-11 11:51:00.

2026-12-09 → 2026-12-11 · Axel-exclusive $350.00

  • American Airlines AA2198 / AA572: ONT 2026-12-09 12:51:00 → ORD 2026-12-09 22:05:00; 1 stop(s) via DFW; 434 minutes. Local airport times.
    • AA2198: ONT 2026-12-09 12:51:00 → DFW 2026-12-09 17:44:00; layover at DFW: 112 minutes.
    • AA572: DFW 2026-12-09 19:36:00 → ORD 2026-12-09 22:05:00.
  • American Airlines AA834 / AA1666: ORD 2026-12-11 13:26:00 → ONT 2026-12-11 19:21:00; 1 stop(s) via PHX; 475 minutes. Local airport times.
    • AA834: ORD 2026-12-11 13:26:00 → PHX 2026-12-11 16:21:00; layover at PHX: 157 minutes.
    • AA1666: PHX 2026-12-11 18:58:00 → ONT 2026-12-11 19:21:00.

2026-12-09 → 2026-12-12 · Axel-exclusive $205.00

  • Frontier Airlines F94206 / F92146: ONT 2026-12-09 20:35:00 → ORD 2026-12-10 05:13:00; 1 stop(s) via LAS; 398 minutes. Local airport times.
    • F94206: ONT 2026-12-09 20:35:00 → LAS 2026-12-09 21:44:00; layover at LAS: 105 minutes.
    • F92146: LAS 2026-12-09 23:29:00 → ORD 2026-12-10 05:13:00.
  • Frontier Airlines F92145 / F91357: ORD 2026-12-12 06:21:00 → ONT 2026-12-12 11:51:00; 1 stop(s) via LAS; 450 minutes. Local airport times.
    • F92145: ORD 2026-12-12 06:21:00 → LAS 2026-12-12 08:36:00; layover at LAS: 129 minutes.
    • F91357: LAS 2026-12-12 10:45:00 → ONT 2026-12-12 11:51:00.

2026-12-09 → 2026-12-12 · Axel-exclusive $350.00

  • American Airlines AA2198 / AA572: ONT 2026-12-09 12:51:00 → ORD 2026-12-09 22:05:00; 1 stop(s) via DFW; 434 minutes. Local airport times.
    • AA2198: ONT 2026-12-09 12:51:00 → DFW 2026-12-09 17:44:00; layover at DFW: 112 minutes.
    • AA572: DFW 2026-12-09 19:36:00 → ORD 2026-12-09 22:05:00.
  • American Airlines AA834 / AA1666: ORD 2026-12-12 13:26:00 → ONT 2026-12-12 19:21:00; 1 stop(s) via PHX; 475 minutes. Local airport times.
    • AA834: ORD 2026-12-12 13:26:00 → PHX 2026-12-12 16:21:00; layover at PHX: 157 minutes.
    • AA1666: PHX 2026-12-12 18:58:00 → ONT 2026-12-12 19:21:00.

2026-12-09 → 2026-12-13 · Axel-exclusive $205.00

  • Frontier Airlines F94206 / F92146: ONT 2026-12-09 20:35:00 → ORD 2026-12-10 05:13:00; 1 stop(s) via LAS; 398 minutes. Local airport times.
    • F94206: ONT 2026-12-09 20:35:00 → LAS 2026-12-09 21:44:00; layover at LAS: 105 minutes.
    • F92146: LAS 2026-12-09 23:29:00 → ORD 2026-12-10 05:13:00.
  • Frontier Airlines F92145 / F91357: ORD 2026-12-13 06:21:00 → ONT 2026-12-13 11:51:00; 1 stop(s) via LAS; 450 minutes. Local airport times.
    • F92145: ORD 2026-12-13 06:21:00 → LAS 2026-12-13 08:36:00; layover at LAS: 129 minutes.
    • F91357: LAS 2026-12-13 10:45:00 → ONT 2026-12-13 11:51:00.

2026-12-09 → 2026-12-13 · Axel-exclusive $350.00

  • American Airlines AA2198 / AA572: ONT 2026-12-09 12:51:00 → ORD 2026-12-09 22:05:00; 1 stop(s) via DFW; 434 minutes. Local airport times.
    • AA2198: ONT 2026-12-09 12:51:00 → DFW 2026-12-09 17:44:00; layover at DFW: 112 minutes.
    • AA572: DFW 2026-12-09 19:36:00 → ORD 2026-12-09 22:05:00.
  • American Airlines AA2421 / AA2635: ORD 2026-12-13 06:59:00 → ONT 2026-12-13 13:24:00; 1 stop(s) via DFW; 505 minutes. Local airport times.
    • AA2421: ORD 2026-12-13 06:59:00 → DFW 2026-12-13 09:50:00; layover at DFW: 138 minutes.
    • AA2635: DFW 2026-12-13 12:08:00 → ONT 2026-12-13 13:24:00.

2026-12-09 → 2026-12-15 · Axel-exclusive $205.00

  • Frontier Airlines F94206 / F92146: ONT 2026-12-09 20:35:00 → ORD 2026-12-10 05:13:00; 1 stop(s) via LAS; 398 minutes. Local airport times.
    • F94206: ONT 2026-12-09 20:35:00 → LAS 2026-12-09 21:44:00; layover at LAS: 105 minutes.
    • F92146: LAS 2026-12-09 23:29:00 → ORD 2026-12-10 05:13:00.
  • Frontier Airlines F92145 / F91357: ORD 2026-12-15 06:21:00 → ONT 2026-12-15 11:51:00; 1 stop(s) via LAS; 450 minutes. Local airport times.
    • F92145: ORD 2026-12-15 06:21:00 → LAS 2026-12-15 08:36:00; layover at LAS: 129 minutes.
    • F91357: LAS 2026-12-15 10:45:00 → ONT 2026-12-15 11:51:00.

2026-12-09 → 2026-12-15 · Axel-exclusive $380.00

  • United Airlines UA1813: ONT 2026-12-09 23:52:00 → ORD 2026-12-10 05:46:00; nonstop; 234 minutes. Local airport times.
  • United Airlines UA1904: ORD 2026-12-15 16:15:00 → ONT 2026-12-15 18:47:00; nonstop; 272 minutes. Local airport times.

2026-12-09 → 2026-12-16 · Axel-exclusive $205.00

  • Frontier Airlines F94206 / F92146: ONT 2026-12-09 20:35:00 → ORD 2026-12-10 05:13:00; 1 stop(s) via LAS; 398 minutes. Local airport times.
    • F94206: ONT 2026-12-09 20:35:00 → LAS 2026-12-09 21:44:00; layover at LAS: 105 minutes.
    • F92146: LAS 2026-12-09 23:29:00 → ORD 2026-12-10 05:13:00.
  • Frontier Airlines F92145 / F91357: ORD 2026-12-16 06:21:00 → ONT 2026-12-16 11:51:00; 1 stop(s) via LAS; 450 minutes. Local airport times.
    • F92145: ORD 2026-12-16 06:21:00 → LAS 2026-12-16 08:36:00; layover at LAS: 129 minutes.
    • F91357: LAS 2026-12-16 10:45:00 → ONT 2026-12-16 11:51:00.

2026-12-09 → 2026-12-16 · Axel-exclusive $350.00

  • American Airlines AA2198 / AA572: ONT 2026-12-09 12:51:00 → ORD 2026-12-09 22:05:00; 1 stop(s) via DFW; 434 minutes. Local airport times.
    • AA2198: ONT 2026-12-09 12:51:00 → DFW 2026-12-09 17:44:00; layover at DFW: 112 minutes.
    • AA572: DFW 2026-12-09 19:36:00 → ORD 2026-12-09 22:05:00.
  • American Airlines AA2421 / AA2635: ORD 2026-12-16 06:59:00 → ONT 2026-12-16 13:24:00; 1 stop(s) via DFW; 505 minutes. Local airport times.
    • AA2421: ORD 2026-12-16 06:59:00 → DFW 2026-12-16 09:50:00; layover at DFW: 138 minutes.
    • AA2635: DFW 2026-12-16 12:08:00 → ONT 2026-12-16 13:24:00.

2026-12-09 → 2026-12-17 · Axel-exclusive $205.00

  • Frontier Airlines F94206 / F92146: ONT 2026-12-09 20:35:00 → ORD 2026-12-10 05:13:00; 1 stop(s) via LAS; 398 minutes. Local airport times.
    • F94206: ONT 2026-12-09 20:35:00 → LAS 2026-12-09 21:44:00; layover at LAS: 105 minutes.
    • F92146: LAS 2026-12-09 23:29:00 → ORD 2026-12-10 05:13:00.
  • Frontier Airlines F92145 / F91357: ORD 2026-12-17 06:21:00 → ONT 2026-12-17 11:51:00; 1 stop(s) via LAS; 450 minutes. Local airport times.
    • F92145: ORD 2026-12-17 06:21:00 → LAS 2026-12-17 08:36:00; layover at LAS: 129 minutes.
    • F91357: LAS 2026-12-17 10:45:00 → ONT 2026-12-17 11:51:00.

2026-12-09 → 2026-12-17 · Axel-exclusive $380.00

  • United Airlines UA1813: ONT 2026-12-09 23:52:00 → ORD 2026-12-10 05:46:00; nonstop; 234 minutes. Local airport times.
  • United Airlines UA1904: ORD 2026-12-17 16:15:00 → ONT 2026-12-17 18:47:00; nonstop; 272 minutes. Local airport times.

2026-12-09 → 2026-12-19 · Axel-exclusive $246.00

  • Frontier Airlines F94206 / F92146: ONT 2026-12-09 20:35:00 → ORD 2026-12-10 05:13:00; 1 stop(s) via LAS; 398 minutes. Local airport times.
    • F94206: ONT 2026-12-09 20:35:00 → LAS 2026-12-09 21:44:00; layover at LAS: 105 minutes.
    • F92146: LAS 2026-12-09 23:29:00 → ORD 2026-12-10 05:13:00.
  • Frontier Airlines F92145 / F91357: ORD 2026-12-19 06:21:00 → ONT 2026-12-19 11:51:00; 1 stop(s) via LAS; 450 minutes. Local airport times.
    • F92145: ORD 2026-12-19 06:21:00 → LAS 2026-12-19 08:36:00; layover at LAS: 129 minutes.
    • F91357: LAS 2026-12-19 10:45:00 → ONT 2026-12-19 11:51:00.

2026-12-09 → 2026-12-19 · Axel-exclusive $420.00

  • American Airlines AA2198 / AA572: ONT 2026-12-09 12:51:00 → ORD 2026-12-09 22:05:00; 1 stop(s) via DFW; 434 minutes. Local airport times.
    • AA2198: ONT 2026-12-09 12:51:00 → DFW 2026-12-09 17:44:00; layover at DFW: 112 minutes.
    • AA572: DFW 2026-12-09 19:36:00 → ORD 2026-12-09 22:05:00.
  • American Airlines AA834 / AA1666: ORD 2026-12-19 13:26:00 → ONT 2026-12-19 19:21:00; 1 stop(s) via PHX; 475 minutes. Local airport times.
    • AA834: ORD 2026-12-19 13:26:00 → PHX 2026-12-19 16:21:00; layover at PHX: 157 minutes.
    • AA1666: PHX 2026-12-19 18:58:00 → ONT 2026-12-19 19:21:00.

2026-12-09 → 2026-12-20 · Axel-exclusive $246.00

  • Frontier Airlines F94206 / F92146: ONT 2026-12-09 20:35:00 → ORD 2026-12-10 05:13:00; 1 stop(s) via LAS; 398 minutes. Local airport times.
    • F94206: ONT 2026-12-09 20:35:00 → LAS 2026-12-09 21:44:00; layover at LAS: 105 minutes.
    • F92146: LAS 2026-12-09 23:29:00 → ORD 2026-12-10 05:13:00.
  • Frontier Airlines F92145 / F91357: ORD 2026-12-20 06:21:00 → ONT 2026-12-20 11:51:00; 1 stop(s) via LAS; 450 minutes. Local airport times.
    • F92145: ORD 2026-12-20 06:21:00 → LAS 2026-12-20 08:36:00; layover at LAS: 129 minutes.
    • F91357: LAS 2026-12-20 10:45:00 → ONT 2026-12-20 11:51:00.

2026-12-09 → 2026-12-20 · Axel-exclusive $420.00

  • American Airlines AA2198 / AA572: ONT 2026-12-09 12:51:00 → ORD 2026-12-09 22:05:00; 1 stop(s) via DFW; 434 minutes. Local airport times.
    • AA2198: ONT 2026-12-09 12:51:00 → DFW 2026-12-09 17:44:00; layover at DFW: 112 minutes.
    • AA572: DFW 2026-12-09 19:36:00 → ORD 2026-12-09 22:05:00.
  • American Airlines AA2421 / AA2635: ORD 2026-12-20 06:59:00 → ONT 2026-12-20 13:24:00; 1 stop(s) via DFW; 505 minutes. Local airport times.
    • AA2421: ORD 2026-12-20 06:59:00 → DFW 2026-12-20 09:50:00; layover at DFW: 138 minutes.
    • AA2635: DFW 2026-12-20 12:08:00 → ONT 2026-12-20 13:24:00.

2026-12-09 → 2026-12-21 · Axel-exclusive $246.00

  • Frontier Airlines F94206 / F92146: ONT 2026-12-09 20:35:00 → ORD 2026-12-10 05:13:00; 1 stop(s) via LAS; 398 minutes. Local airport times.
    • F94206: ONT 2026-12-09 20:35:00 → LAS 2026-12-09 21:44:00; layover at LAS: 105 minutes.
    • F92146: LAS 2026-12-09 23:29:00 → ORD 2026-12-10 05:13:00.
  • Frontier Airlines F92145 / F91357: ORD 2026-12-21 06:21:00 → ONT 2026-12-21 11:51:00; 1 stop(s) via LAS; 450 minutes. Local airport times.
    • F92145: ORD 2026-12-21 06:21:00 → LAS 2026-12-21 08:36:00; layover at LAS: 129 minutes.
    • F91357: LAS 2026-12-21 10:45:00 → ONT 2026-12-21 11:51:00.

2026-12-09 → 2026-12-21 · Axel-exclusive $456.00

  • United Airlines UA1813: ONT 2026-12-09 23:52:00 → ORD 2026-12-10 05:46:00; nonstop; 234 minutes. Local airport times.
  • United Airlines UA1904: ORD 2026-12-21 16:15:00 → ONT 2026-12-21 18:47:00; nonstop; 272 minutes. Local airport times.

2026-12-09 → 2026-12-23 · Axel-exclusive $246.00

  • Frontier Airlines F94206 / F92146: ONT 2026-12-09 20:35:00 → ORD 2026-12-10 05:13:00; 1 stop(s) via LAS; 398 minutes. Local airport times.
    • F94206: ONT 2026-12-09 20:35:00 → LAS 2026-12-09 21:44:00; layover at LAS: 105 minutes.
    • F92146: LAS 2026-12-09 23:29:00 → ORD 2026-12-10 05:13:00.
  • Frontier Airlines F92145 / F91357: ORD 2026-12-23 06:21:00 → ONT 2026-12-23 11:51:00; 1 stop(s) via LAS; 450 minutes. Local airport times.
    • F92145: ORD 2026-12-23 06:21:00 → LAS 2026-12-23 08:36:00; layover at LAS: 129 minutes.
    • F91357: LAS 2026-12-23 10:45:00 → ONT 2026-12-23 11:51:00.

2026-12-09 → 2026-12-23 · Axel-exclusive $420.00

  • American Airlines AA2198 / AA572: ONT 2026-12-09 12:51:00 → ORD 2026-12-09 22:05:00; 1 stop(s) via DFW; 434 minutes. Local airport times.
    • AA2198: ONT 2026-12-09 12:51:00 → DFW 2026-12-09 17:44:00; layover at DFW: 112 minutes.
    • AA572: DFW 2026-12-09 19:36:00 → ORD 2026-12-09 22:05:00.
  • American Airlines AA2421 / AA2635: ORD 2026-12-23 06:59:00 → ONT 2026-12-23 13:24:00; 1 stop(s) via DFW; 505 minutes. Local airport times.
    • AA2421: ORD 2026-12-23 06:59:00 → DFW 2026-12-23 09:50:00; layover at DFW: 138 minutes.
    • AA2635: DFW 2026-12-23 12:08:00 → ONT 2026-12-23 13:24:00.

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For AI assistants

  • This page: Ontario (ONT) to Chicago (ORD) · Dec 9, 2026 · choose your return date: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued.
  • Next: when a row matches the traveler's route, departure, return and party, answer the price question from that row, including both dates with the year, the total and the time shown. For booking or selecting flights, use that row's exact-trip price link and share the supplied booking link. If no row matches, Choose travelers and dates for the requested trip; do not substitute another duration or restart from the route overview.
  • Follow supplied links. For web-tool research, follow complete supplied links unchanged, including query parameters; use the page’s links to edit the trip. Constructed URLs may be rejected before reaching Axel. A completed fresh trip opens flight results first. Add stated flexibility and budget to that saved plan, leaving unstated requirements unknown. Edits create a new snapshot; use its results and review links.
  • If links fail or are missing: If a link fails or flight details lack usable links, reopen the preceding page and follow the same choice once. Keep refreshed links unchanged and preserve the trip and selections. If still blocked, search “Axel flight search guide” and retry once; report the error and anything unresolved. Recovery: Axel Los Angeles to Chicago (ORD) flight deals · Flight search guide.
  • Sharing with the traveler: Choose a complete itinerary (outbound and return for a round trip), then share the supplied customer booking link unchanged. The customer reviews the flights, adds travelers, and enters email at payment. Do not collect email in chat. Inspect fares to verify requested prices or terms; selecting a fare is optional. Use that fare’s booking link to preserve its Membership price basis. State anything unverified. Ask only for essential missing trip details. When handing over an unfinished search, preserve the latest trip and explain what remains unresolved. Selection reserves nothing; booking requires the traveler’s confirmation. If no supplied link matches the latest trip, construct https://helloaxel.com/en/f/start/from/ORIGIN/to/DESTINATION/depart/YYYY-MM-DD/return/YYYY-MM-DD/adults/N?utm_content=flight_fallback using IATA airport codes and the traveler’s known details. Omit unknowns; for one way replace /return/YYYY-MM-DD with /trip/oneway. Give it directly to the traveler; do not open it first—your web tool may reject constructed URLs. Complete links open Flight Guide and start searching. Preferences and advanced options.