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Chicago (MDW) to Ontario (ONT) Flights from ₹12,475

Fares on this route currently start from ₹12,475. Compare live MDW to ONT prices, non-stop and connecting flights, departure times and airline choices before booking. Use the search panel to change origin, destination, passengers, cabin and trip type instantly.
MDW → ONT Approx. 2739.56 km 14 Jul 2026 Live inventory
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Showing 25 of 159 live flights
Frontier Airlines
F9-3241
21:34
07/14/2026
ORD
Chicago Midway International Airport
11h 3m
1 Stop
⏱ DFW · 7h 14mDFW Airport
08:37
07/15/2026
+1
ONT
Ontario International Airport
₹12,475
per person
✕ Non-refundable
Southwest Airlines
WN-4594
15:15
07/14/2026
MDW
Chicago Midway International Airport
7h 35m
2 Stops
⏱ CMH · 1h 50mCMH Airport⏱ LAS · 1h 5mLAS Airport
22:50
07/14/2026
ONT
Ontario International Airport
₹13,368
per person
✕ Non-refundable4 fare options
Southwest Airlines
WN-5076
16:35
07/14/2026
MDW
Chicago Midway International Airport
6h 15m
2 Stops
⏱ DAL · 0h 55mDAL Airport⏱ LAS · 1h 10mLAS Airport
22:50
07/14/2026
ONT
Ontario International Airport
₹13,368
per person
✕ Non-refundable4 fare options
Southwest Airlines
WN-2904
17:10
07/14/2026
MDW
Chicago Midway International Airport
5h 40m
2 Stops
⏱ STL · 0h 35mSTL Airport⏱ LAS · 1h 25mLAS Airport
22:50
07/14/2026
ONT
Ontario International Airport
₹13,368
per person
✕ Non-refundable4 fare options
Frontier Airlines
F9-2145
07:15
07/14/2026
ORD
Chicago Midway International Airport
7h 59m
1 Stop
⏱ LAS · 4h 42mLAS Airport
15:14
07/14/2026
ONT
Ontario International Airport
₹15,698
per person
✕ Non-refundable
Frontier Airlines
F9-2145
07:15
07/14/2026
ORD
Chicago Midway International Airport
24h 48m
1 Stop
⏱ LAS · 21h 37mLAS Airport
08:03
07/15/2026
+1
ONT
Ontario International Airport
₹15,698
per person
✕ Non-refundable
Frontier Airlines
F9-1483
21:57
07/14/2026
ORD
Chicago Midway International Airport
25h 53m
1 Stop
⏱ DEN · 22h 32mDEN Airport
23:50
07/15/2026
+1
ONT
Ontario International Airport
₹15,699
per person
✕ Non-refundable
Frontier Airlines
F9-1483
21:57
07/14/2026
ORD
Chicago Midway International Airport
12h 7m
1 Stop
⏱ DEN · 8h 48mDEN Airport
10:04
07/15/2026
+1
ONT
Ontario International Airport
₹15,699
per person
✕ Non-refundable
Southwest Airlines
WN-2989
05:30
07/14/2026
MDW
Chicago Midway International Airport
4h 10m
1 Stop
⏱ DEN · 1h 0mDEN Airport
09:40
07/14/2026
BUR
Ontario International Airport
₹16,359
per person
✓ Refundable8 fare options
Southwest Airlines
WN-347
08:00
07/14/2026
MDW
Chicago Midway International Airport
4h 30m
1 Stop
⏱ LAS · 1h 15mLAS Airport
12:30
07/14/2026
BUR
Ontario International Airport
₹16,359
per person
✓ Refundable8 fare options
Southwest Airlines
WN-117
06:45
07/14/2026
MDW
Chicago Midway International Airport
4h 50m
1 Stop
⏱ PHX · 1h 45mPHX Airport
11:35
07/14/2026
BUR
Ontario International Airport
₹16,359
per person
✓ Refundable🔥 Last 2 seats8 fare options
Southwest Airlines
WN-2727
10:00
07/14/2026
MDW
Chicago Midway International Airport
4h 10m
1 Stop
⏱ AUS · 0h 40mAUS Airport
14:10
07/14/2026
SNA
Ontario International Airport
₹16,456
per person
✕ Non-refundable🔥 Last 4 seats2 fare options
Southwest Airlines
WN-3586
05:25
07/14/2026
MDW
Chicago Midway International Airport
17h 40m
1 Stop
⏱ PHX · 14h 50mPHX Airport
23:05
07/14/2026
ONT
Ontario International Airport
₹17,607
per person
✕ Non-refundable4 fare options
Southwest Airlines
WN-2904
17:10
07/14/2026
MDW
Chicago Midway International Airport
5h 15m
2 Stops
⏱ STL · 0h 35mSTL Airport⏱ LAS · 0h 55mLAS Airport
22:25
07/14/2026
SNA
Ontario International Airport
₹17,871
per person
✕ Non-refundable2 fare options
Delta Air Lines
DL-2231
07:45
07/14/2026
ORD
Chicago Midway International Airport
4h 14m
1 Stop
⏱ SLC · 0h 50mSLC Airport
11:59
07/14/2026
LGB
Ontario International Airport
₹18,345
per person
✕ Non-refundable5 fare options
Frontier Airlines
F9-3135
17:46
07/14/2026
ORD
Chicago Midway International Airport
13h 46m
1 Stop
⏱ IAH · 9h 7mIAH Airport
07:32
07/15/2026
+1
ONT
Ontario International Airport
₹18,348
per person
✕ Non-refundable
Southwest Airlines
WN-2795
14:55
07/14/2026
MDW
Chicago Midway International Airport
5h 10m
1 Stop
⏱ LAS · 2h 5mLAS Airport
20:05
07/14/2026
BUR
Ontario International Airport
₹18,724
per person
✕ Non-refundable🔥 Last 2 seats2 fare options
United Airlines
UA-2666
05:00
07/14/2026
ORD
Chicago Midway International Airport
4h 7m
Non-stop
09:07
07/14/2026
SNA
Ontario International Airport
₹18,861
per person
✕ Non-refundable3 fare options
United Airlines
UA-2666
05:00
07/14/2026
ORD
Chicago Midway International Airport
4h 7m
1 Stop
⏱ DEN · 0h 59mDEN Airport
09:07
07/14/2026
SNA
Ontario International Airport
₹18,873
per person
✓ Refundable4 fare options
American Airlines
AA-2434
05:00
07/14/2026
ORD
Chicago Midway International Airport
3h 45m
1 Stop
⏱ PHX · 0h 45mPHX Airport
08:45
07/14/2026
BUR
Ontario International Airport
₹19,194
per person
✕ Non-refundable5 fare options
United Airlines
UA-246
06:10
07/14/2026
ORD
Chicago Midway International Airport
5h 39m
1 Stop
⏱ SFO · 1h 36mSFO Airport
11:49
07/14/2026
BUR
Ontario International Airport
₹19,194
per person
✕ Non-refundable3 fare options
Southwest Airlines
WN-4413
14:40
07/14/2026
MDW
Chicago Midway International Airport
2h 15m
Non-stop
16:55
07/14/2026
LGB
Ontario International Airport
₹19,843
per person
✕ Non-refundable🔥 Last 3 seats13 fare options
Southwest Airlines
WN-347
08:00
07/14/2026
MDW
Chicago Midway International Airport
4h 25m
1 Stop
⏱ LAS · 1h 10mLAS Airport
12:25
07/14/2026
LGB
Ontario International Airport
₹20,235
per person
✓ Refundable8 fare options
Delta Air Lines
DL-1556
07:29
07/14/2026
ORD
Chicago Midway International Airport
2h 31m
Non-stop
10:00
07/14/2026
LAX
Ontario International Airport
₹20,531
per person
✕ Non-refundable5 fare options
Delta Air Lines
DL-967
14:42
07/14/2026
ORD
Chicago Midway International Airport
2h 32m
Non-stop
17:14
07/14/2026
LAX
Ontario International Airport
₹20,531
per person
✕ Non-refundable5 fare options
😕 No flights match your filters.
Chicago (MDW)
📍 Chicago Midway International Airport
🌍 United States
🕐 GMT -6
📐 Latitude: 41.785999
📐 Longitude: -87.752403
Ontario (ONT)
📍 Ontario International Airport
🌍 United States
🕐 GMT -8
📐 Latitude: 34.055999755859375
📐 Longitude: -117.60099792480469

✈ Distance: Chicago,USA to Ontario,USA — 2739.56 km

📅 Results on this page are loaded for 14 Jul 2026. Click Load more flights to expand the full list on this page.

Chicago to Ontario — what to expect when booking

The MDW–ONT route is served by multiple carriers throughout the year. Fares on this route can move quickly — a price available now may not be there 30 minutes later.

If your dates are flexible, try shifting your departure by a day or two using the date strip above. Mid-week departures often show lower base fares compared to weekend starts on many routes.

The distance between Chicago,USA and Ontario,USA is approximately 2739.56 km.

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More flights from Chicago (MDW)
63 routes
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MDW → ALB
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More flights from Ontario (ONT)
15 routes
Ontario → Chicago
ONT → MDW
Ontario → Denver
ONT → DEN
Ontario → Fort Worth
ONT → DFW
Ontario → Guadalajara
ONT → GDL
Ontario → Houston
ONT → IAH
Ontario → Las Vegas
ONT → LAS
Ontario → Oakland
ONT → OAK
Ontario → Phoenix
ONT → PHX
Ontario → Portland International
ONT → PDX
Ontario → Sacramento
ONT → SMF
Ontario → Salt Lake City
ONT → SLC
Ontario → San Francisco
ONT → SFO
Ontario → San Jose
ONT → SJC
Ontario → San Juan
ONT → SJU
Ontario → Seattle
ONT → SEA
❓ Frequently asked questions — Chicago to Ontario flights

Generally yes — fares on most routes are most competitive around 4–6 weeks before departure. Booking earlier usually means better availability and a lower base fare when your dates are fixed.

The straight-line distance between Chicago,USA (MDW) and Ontario,USA (ONT) is approximately 2739.56 km. Actual flying distance may vary slightly depending on routing.

Non-stop availability on this route varies by airline schedule and season. Use the filters below to quickly check whether direct options are available on your selected date.

Mid-week departures often show lower prices than weekend travel on many routes. Use the date strip above to compare nearby days quickly.