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Ontario → Chicago

Dec 10, 2026 · return Dec 20, 2026

ONT → MDW1 adulteconomyRound trip

6 flight options · 2 airlines

One-stop flights

Thu, Dec 10 – Sun, Dec 20

Delta Air Lines
7:05 amONT
7h 13m
ATL · 1h 15m
4:18 pmMDW
Frontier Airlines
12:30 pmMDW
7h 45m
DFW · 1h 46m
6:15 pmONT

Round-trip total · 1 adult · Taxes included

Thu, Dec 10 – Sun, Dec 20

Southwest Airlines
8:45 amONT
7h 10m
DEN · 2h 45m
5:55 pmMDW
Southwest Airlines
4:25 pmMDW
8h 5m
DEN · 2h 50m
10:30 pmONT

Round-trip total · 1 adult · Taxes included

Thu, Dec 10 – Sun, Dec 20

Southwest Airlines
8:40 amONT
6h 45m
LAS · 2h 10m
5:25 pmMDW
Southwest Airlines
4:25 pmMDW
8h 5m
DEN · 2h 50m
10:30 pmONT

Round-trip total · 1 adult · Taxes included

Thu, Dec 10 – Sun, Dec 20

Southwest Airlines
7:50 amONT
7h 30m
AUS · 2h 15m
5:20 pmMDW
Southwest Airlines
4:25 pmMDW
8h 5m
DEN · 2h 50m
10:30 pmONT

Round-trip total · 1 adult · Taxes included

Thu, Dec 10 – Sun, Dec 20

Southwest Airlines
11:25 amONT
7h 40m
BNA · 2h 25m
9:05 pmMDW
Southwest Airlines
4:25 pmMDW
8h 5m
DEN · 2h 50m
10:30 pmONT

Round-trip total · 1 adult · Taxes included

Thu, Dec 10 – Sun, Dec 20

Southwest Airlines
11:55 pmONT
3h 45m
Nonstop
5:40 am+1MDW
Southwest Airlines
4:25 pmMDW
8h 5m
DEN · 2h 50m
10:30 pmONT

Round-trip total · 1 adult · Taxes included

Make this trip yours

ONT ⇄ MDW

Economy

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

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More dates

All dates for this routeNov 5, 2026 → Nov 8, 2026Nov 14, 2026 → Nov 21, 2026Nov 24, 2026 → Nov 29, 2026Dec 5, 2026 → Dec 12, 2026Dec 17, 2026 → Dec 20, 2026Dec 26, 2026 → Jan 2, 2027Jan 5, 2027 · One wayJan 16, 2027 → Jan 23, 2027Feb 5, 2027 → Feb 8, 2027Apr 3, 2027 → Apr 10, 2027Jun 26, 2027 → Jul 3, 2027Sep 17, 2027 → Sep 20, 2027
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)
2026-12-10 → 2026-12-20Delta Air Lines / Frontier AirlinesDL409 + DL1728 / F92999 + F91405$309.252026-10-29T01:52:32Z
2026-12-10 → 2026-12-20Southwest AirlinesWN3301 + WN1699 / WN4606 + WN2827$350.752026-10-29T01:52:32Z
2026-12-10 → 2026-12-20Southwest AirlinesWN1903 + WN887 / WN4606 + WN2827$350.752026-10-29T01:52:32Z
2026-12-10 → 2026-12-20Southwest AirlinesWN3298 + WN295 / WN4606 + WN2827$350.752026-10-29T01:52:32Z
2026-12-10 → 2026-12-20Southwest AirlinesWN1729 + WN651 / WN4606 + WN2827$350.752026-10-29T01:52:32Z
2026-12-10 → 2026-12-20Southwest AirlinesWN4067 / WN4606 + WN2827$365.752026-10-29T01:52:32Z

2026-12-10 → 2026-12-20 · $309.25

  • Delta Air Lines DL409 / DL1728: ONT 2026-12-10 07:05:00 → MDW 2026-12-10 16:18:00; 1 stop(s) via ATL; 433 minutes. Local airport times.
    • DL409: ONT 2026-12-10 07:05:00 → ATL 2026-12-10 14:10:00; layover at ATL: 75 minutes.
    • DL1728: ATL 2026-12-10 15:25:00 → MDW 2026-12-10 16:18:00.
  • Frontier Airlines F92999 / F91405: MDW 2026-12-20 12:30:00 → ONT 2026-12-20 18:15:00; 1 stop(s) via DFW; 465 minutes. Local airport times.
    • F92999: MDW 2026-12-20 12:30:00 → DFW 2026-12-20 15:12:00; layover at DFW: 106 minutes.
    • F91405: DFW 2026-12-20 16:58:00 → ONT 2026-12-20 18:15:00.

2026-12-10 → 2026-12-20 · $350.75

  • Southwest Airlines WN3301 / WN1699: ONT 2026-12-10 08:45:00 → MDW 2026-12-10 17:55:00; 1 stop(s) via DEN; 430 minutes. Local airport times.
    • WN3301: ONT 2026-12-10 08:45:00 → DEN 2026-12-10 11:55:00; layover at DEN: 165 minutes.
    • WN1699: DEN 2026-12-10 14:40:00 → MDW 2026-12-10 17:55:00.
  • Southwest Airlines WN4606 / WN2827: MDW 2026-12-20 16:25:00 → ONT 2026-12-20 22:30:00; 1 stop(s) via DEN; 485 minutes. Local airport times.
    • WN4606: MDW 2026-12-20 16:25:00 → DEN 2026-12-20 18:10:00; layover at DEN: 170 minutes.
    • WN2827: DEN 2026-12-20 21:00:00 → ONT 2026-12-20 22:30:00.

2026-12-10 → 2026-12-20 · $350.75

  • Southwest Airlines WN1903 / WN887: ONT 2026-12-10 08:40:00 → MDW 2026-12-10 17:25:00; 1 stop(s) via LAS; 405 minutes. Local airport times.
    • WN1903: ONT 2026-12-10 08:40:00 → LAS 2026-12-10 09:40:00; layover at LAS: 130 minutes.
    • WN887: LAS 2026-12-10 11:50:00 → MDW 2026-12-10 17:25:00.
  • Southwest Airlines WN4606 / WN2827: MDW 2026-12-20 16:25:00 → ONT 2026-12-20 22:30:00; 1 stop(s) via DEN; 485 minutes. Local airport times.
    • WN4606: MDW 2026-12-20 16:25:00 → DEN 2026-12-20 18:10:00; layover at DEN: 170 minutes.
    • WN2827: DEN 2026-12-20 21:00:00 → ONT 2026-12-20 22:30:00.

2026-12-10 → 2026-12-20 · $350.75

  • Southwest Airlines WN3298 / WN295: ONT 2026-12-10 07:50:00 → MDW 2026-12-10 17:20:00; 1 stop(s) via AUS; 450 minutes. Local airport times.
    • WN3298: ONT 2026-12-10 07:50:00 → AUS 2026-12-10 12:35:00; layover at AUS: 135 minutes.
    • WN295: AUS 2026-12-10 14:50:00 → MDW 2026-12-10 17:20:00.
  • Southwest Airlines WN4606 / WN2827: MDW 2026-12-20 16:25:00 → ONT 2026-12-20 22:30:00; 1 stop(s) via DEN; 485 minutes. Local airport times.
    • WN4606: MDW 2026-12-20 16:25:00 → DEN 2026-12-20 18:10:00; layover at DEN: 170 minutes.
    • WN2827: DEN 2026-12-20 21:00:00 → ONT 2026-12-20 22:30:00.

2026-12-10 → 2026-12-20 · $350.75

  • Southwest Airlines WN1729 / WN651: ONT 2026-12-10 11:25:00 → MDW 2026-12-10 21:05:00; 1 stop(s) via BNA; 460 minutes. Local airport times.
    • WN1729: ONT 2026-12-10 11:25:00 → BNA 2026-12-10 17:05:00; layover at BNA: 145 minutes.
    • WN651: BNA 2026-12-10 19:30:00 → MDW 2026-12-10 21:05:00.
  • Southwest Airlines WN4606 / WN2827: MDW 2026-12-20 16:25:00 → ONT 2026-12-20 22:30:00; 1 stop(s) via DEN; 485 minutes. Local airport times.
    • WN4606: MDW 2026-12-20 16:25:00 → DEN 2026-12-20 18:10:00; layover at DEN: 170 minutes.
    • WN2827: DEN 2026-12-20 21:00:00 → ONT 2026-12-20 22:30:00.

2026-12-10 → 2026-12-20 · $365.75

  • Southwest Airlines WN4067: ONT 2026-12-10 23:55:00 → MDW 2026-12-11 05:40:00; nonstop; 225 minutes. Local airport times.
  • Southwest Airlines WN4606 / WN2827: MDW 2026-12-20 16:25:00 → ONT 2026-12-20 22:30:00; 1 stop(s) via DEN; 485 minutes. Local airport times.
    • WN4606: MDW 2026-12-20 16:25:00 → DEN 2026-12-20 18:10:00; layover at DEN: 170 minutes.
    • WN2827: DEN 2026-12-20 21:00:00 → ONT 2026-12-20 22:30:00.

More dates for this route