Ontario to Chicago (ONT–MDW) — Airlines, Schedules & Connections

ONT Airport Page →
1,702 mi airlines 14/wk
On-time Some delays Frequent delays
Flight Schedule 4 flights Verified 5m ago
Nonstop 1-Stop 2-Stop Hide separate tickets Hide overnight
  Flight Airline AC Dep Arr Dur OTP Sched  
✓
→
WN3658
WN Southwest
7M8
11:55 PM
PDT T4
5:40 AM+1
CDT
3h 45m
—
M T W T F S S
Prices
✓
→
WN4134
WN Southwest
73H
11:55 PM
PDT T4
5:40 AM+1
CDT
3h 45m
—
M T W T F S S
Prices
✓
←
WN3332
WN Southwest
7M8
11:00 AM
CDT
1:15 PM
PDT
4h 15m
—
M T W T F S S
Prices
✓
←
WN3123
WN Southwest
7M8
9:55 PM
CDT
12:15 AM+1
PDT
4h 20m
—
M T W T F S S
Prices

No flights match your filters.

No nonstop flights on this route. connecting options below.

✦ 1-STOP
✧ 2-STOP Loading...
Ontario to Chicago
1 carrier, 14 flights/week nonstop.
1 Airlines 14 Flights/wk 1,702 mi 3h 45m nonstop +2h ahead 32 1-stop hubs

ONT–MDW is served by 1 airline with nonstop service. Southwest Airlines leads the route. The flight covers 1,702 miles in approximately 3h 45m. Beyond nonstop, 32 hubs offer 1-stop connections.

Also explore ONT Routes MDW Routes ONT Live Flights MDW Live Flights ONT Delays MDW Delays
Carriers on this route

Airline Landscape

All carriers operating nonstop ONT–MDW service, compared side by side.
Airline Freq/wk Aircraft Duration Dep OTP Alliance Codeshares
WN Southwest Airlines 14 73H, 7M8 3h45 59% – –
Aircraft on this route
73H Boeing 737-800 – WN
7M8 Boeing 737 MAX 8 – WN
Alliance coverage
Unaffiliated: WN (14 flights/wk, 100%)
OTP based on airport-level delay snapshots. Duration ranges reflect seasonal/directional variation.
Schedule

Weekly Schedule Pattern

Nonstop flight frequency by day of week, ONT to MDW direction.
Mon
2
flights
Tue
2
flights
Wed
2
flights
Thu
2
flights
Fri
2
flights
Sat
2
flights
Sun
2
flights
Departure time distribution
12 AM6 AM12 PM6 PM12 AM
Morning departures
Afternoon/evening departures
2
Nonstop flights
14
Outbound / wk
14
Return / wk
Connections

Connection Landscape

Beyond nonstop. 1-stop and 2-stop options for ONT to MDW.
1-STOP
One-Stop Connections
32
Hubs
~5h
Fastest
~29h
Longest
PSP ~5h 29m BUR ~5h 55m LCK ~6h 17m SDF ~6h 18m STS ~6h 54m
Verified with published schedule alignment and minimum connection time.
2-STOP
Two-Stop Connections
1,356
Candidates
Two-stop connections loaded in the connections tab above.
Connections computed from published schedules with minimum connection time verification. Use the interactive explorer above the fold to filter by airline, tier, and layover time.
Reliability

On-Time Performance

What to expect at each end of your journey.
Outbound
ONT → MDW
59%
Frequent delays expected. Consider flexible booking.
Departing
59%
Arriving
94%
Return
MDW → ONT
75%
Generally reliable. Most flights run on time.
Departing
75%
Arriving
0%
OTP = percentage of flights arriving within 15 min of schedule. Based on airport-level delay snapshots. ONT delays → MDW delays →
Alternatives

Other ways to reach Chicago from Ontario

Nearby airports with service to Chicago Midway International Airport.
Metric ONT→MDW SNA→MDW LGB→MDW
Distance from ONT – 30 mi 36 mi
Nonstop airlines 1 1 2
Weekly flights 14 1 12
Flight time 3h 45m 3h 22m 3h 50m
Departure OTP 59% – –
Santa Ana (SNA) to Chicago flights · Long Beach (LGB) to Chicago flights · Burbank (BUR) to Chicago flights
Airports within 200 miles of ONT with service to Chicago Midway International Airport.
Know before you go

Travel Essentials

Practical planning for this route.
Time Difference
+2h
Chicago is 2 hours ahead of Ontario.
ONT: PDT · MDW: CDT

When it's 6:00 PM in Ontario, it's 8:00 PM in Chicago.
Distance & Flight Time
1,702 mi / 2,740 km
Nonstop flight time is approximately 3h 45m.
Facts

ONT–MDW Quick Facts

Key statistics for the Ontario to Chicago route.
Route details
Distance1,702 mi / 2,740 km
Flight time3h 45m
Time difference+2 hours
Airlines (nonstop)1
Weekly flights14 out / 14 return
1-stop connections32 hubs
Origin: ONT
Full nameOntario International Airport
IATA / ICAOONT / KONT
TimezoneAmerica/Los_Angeles
Passengers/yr7.0M
Elevation944 ft / 288 m
Destination: MDW
Full nameChicago Midway International Airport
IATA / ICAOMDW / KMDW
TimezoneAmerica/Chicago
Passengers/yr20.7M
Elevation620 ft / 189 m
FAQ

Frequently Asked Questions

Common questions about ONT to MDW flights.
Nonstop flights from Ontario International Airport to Chicago Midway International Airport take approximately 3h 45m. The route covers 1,702 miles.
1 airline operates nonstop service: Southwest Airlines.
There are approximately 14 nonstop flights per week from ONT to MDW. The return direction has about 14 weekly flights.
Yes, 1-stop connections are available through PSP, BUR, LCK, SDF, STS, OKC, EWR, FLL, ORD, MLM, BWI, CVG, SJC, HOU, OAK, SMF, ATL, GDL, SEA, DAL, DFW, DEN, PHX, CLT, LAS, PDX, BNA, SFO, SLC, AUS, SJD and IAH. These options provide additional schedule flexibility.
Chicago is 2 hours ahead of Ontario.
Yes, return flights from MDW to ONT are available. Use the direction toggle at the top to view the return schedule.
Nearby alternatives include SNA, LGB and BUR. See the Alternatives section for a full comparison.
Click the 'Search Flights' button to check availability and prices on Google Flights. You can also compare airlines and schedules on this page to find the best option.
See the On-Time Performance section for the latest delay data at both airports. This shows departure and arrival reliability to help you plan.
Route data is updated regularly from official airline schedules. On-time performance data comes from recent airport delay snapshots.

Flights from ONT to MDW

Ontario International Airport (ONT) and Chicago Midway International Airport (MDW) are connected by nonstop service from Southwest Airlines. With 14 weekly departures, this is a well served route.

ONT to MDW Flight Duration and Schedule

Nonstop flight time from ONT to MDW ranges from 3 hours 45 minutes. The route covers a distance of 1,702 miles (2,740 km). There are approximately 14 weekly flights outbound and 14 return, totaling 28 flights per week in both directions.

Connecting Options and Alternatives

32 one-stop connections are available, with the fastest taking approximately 5 hours via PSP. Two-stop connections are also available via intermediate hubs. Nearby alternative airports include Santa Ana (SNA), Long Beach (LGB) and Burbank (BUR).