Ontario to Chicago nonstop
Yes: Southwest flies direct from Ontario (ONT) to Chicago (MDW) about 7 times a week, year-round.
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- Distance and flight time
- 1,706 miles nonstop, about 4 hr 5 min gate to gate. Flight time is an estimate from the great-circle distance; the filings carry distance, not scheduled elapsed time.
- Seasonality
- Flew every month of the last year, a steady 7 flights a week.
- Sep 2025: 7 flights a week
- Oct 2025: 7 flights a week
- Nov 2025: 7 flights a week
- Dec 2025: 7 flights a week
- Jan 2026: 6 flights a week
- Feb 2026: 7 flights a week
- Mar 2026: 7 flights a week
- Apr 2026: 7 flights a week
- May 2026: 7 flights a week
- Jun 2026: 7 flights a week
- Jul 2026: 7 flights a week
- Aug 2026: 7 flights a week
Flights a week by month, Sep 2025 to Aug 2026, from US DOT on-time filings. - Who operates the flights
- Southwest is the only carrier filing this pair.
- Fares
- Half of the 418 tickets in the US DOT fare survey for Q2 2025 sold between $200 and $300 one way, median $225. The survey runs a couple of quarters behind, so read it as the shape of the route's pricing rather than today's quote.
- Jul to Sep (Q3 2024): median $225 one way, middle half $200 to $300, 585 tickets
- Oct to Dec (Q4 2024): median $250 one way, middle half $200 to $325, 451 tickets
- Jan to Mar (Q1 2025): median $200 one way, middle half $175 to $300, 347 tickets
- Apr to Jun (Q2 2025): median $225 one way, middle half $200 to $300, 418 tickets
Jan to Mar trips were the cheapest (median $200 one way) and Oct to Dec trips cost the most (median $250), in the DOT ticket survey for Q3 2024 to Q2 2025. Bars show the middle half of one-way fares; the mark is the median.
Flying the other way? Chicago to Ontario nonstop.
Other airports near Ontario with nonstops to Chicago
Within about 100 miles of Ontario International Airport
Also nonstop from Ontario (ONT)
Busiest other routes out of the same airport
- Seattle (SEA) about 8 times a day
- Denver (DEN) about 8 times a day
- Phoenix (PHX) about 7 times a day
- Las Vegas (LAS) about 6 times a day
- Dallas/Fort Worth (DFW) about 6 times a day
- Sacramento (SMF) about 6 times a day
- San Francisco (SFO) about 4 times a day
- Salt Lake City (SLC) about 4 times a day
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