Compare live prices for IAH to ONT. Use the search panel
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IAH → ONTApprox. 2142.26 km11 May 2026Live inventory
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Showing 25
of 116
live flights
Southwest Airlines
WN-3172
08:10
05/11/2026
HOU
George Bush Intercontinental Houston Airport
1h 30m
Non-stop
09:40
05/11/2026
LGB
Ontario International Airport
₹14,455
per person
✕ Non-refundable9 fare options
Southwest Airlines
WN-165
05:55
05/11/2026
HOU
George Bush Intercontinental Houston Airport
1h 35m
Non-stop
07:30
05/11/2026
LAX
Ontario International Airport
₹15,669
per person
✕ Non-refundable9 fare options
Southwest Airlines
WN-241
21:55
05/11/2026
HOU
George Bush Intercontinental Houston Airport
1h 35m
Non-stop
23:30
05/11/2026
LAX
Ontario International Airport
₹15,669
per person
✕ Non-refundable🔥 Last 2 seats9 fare options
Alaska Airlines
AS-1421
18:18
05/11/2026
IAH
George Bush Intercontinental Houston Airport
5h 30m
1 Stop
⏱ PDX · 0h 40mPDX Airport
23:48
05/11/2026
ONT
Ontario International Airport
₹16,296
per person
✕ Non-refundable8 fare options
American Airlines
AA-2551
05:00
05/11/2026
IAH
George Bush Intercontinental Houston Airport
3h 33m
1 Stop
⏱ DFW · 0h 53mDFW Airport
08:33
05/11/2026
SNA
Ontario International Airport
₹16,331
per person
✕ Non-refundable9 fare options
Southwest Airlines
WN-41
18:25
05/11/2026
HOU
George Bush Intercontinental Houston Airport
3h 55m
1 Stop
⏱ LAS · 1h 35mLAS Airport
22:20
05/11/2026
SNA
Ontario International Airport
₹17,258
per person
✓ Refundable8 fare options
Southwest Airlines
WN-1991
18:40
05/11/2026
HOU
George Bush Intercontinental Houston Airport
2h 55m
1 Stop
⏱ PHX · 0h 50mPHX Airport
21:35
05/11/2026
SNA
Ontario International Airport
₹17,258
per person
✓ Refundable4 fare options
Southwest Airlines
WN-2394
06:15
05/11/2026
HOU
George Bush Intercontinental Houston Airport
3h 20m
1 Stop
⏱ PHX · 0h 55mPHX Airport
09:35
05/11/2026
SNA
Ontario International Airport
₹17,258
per person
✓ Refundable4 fare options
Delta Air Lines
DL-1216
06:15
05/11/2026
IAH
George Bush Intercontinental Houston Airport
1h 38m
Non-stop
07:53
05/11/2026
LAX
Ontario International Airport
₹17,561
per person
✕ Non-refundable
Southwest Airlines
WN-582
20:15
05/11/2026
HOU
George Bush Intercontinental Houston Airport
3h 5m
1 Stop
⏱ PHX · 0h 45mPHX Airport
23:20
05/11/2026
LAX
Ontario International Airport
₹17,636
per person
✓ Refundable8 fare options
Southwest Airlines
WN-2340
19:50
05/11/2026
HOU
George Bush Intercontinental Houston Airport
3h 25m
1 Stop
⏱ LAS · 0h 55mLAS Airport
23:15
05/11/2026
LAX
Ontario International Airport
₹17,636
per person
✓ Refundable8 fare options
Southwest Airlines
WN-2312
06:05
05/11/2026
HOU
George Bush Intercontinental Houston Airport
3h 55m
1 Stop
⏱ DEN · 0h 55mDEN Airport
10:00
05/11/2026
LAX
Ontario International Airport
₹17,636
per person
✓ Refundable8 fare options
Southwest Airlines
WN-2900
18:25
05/11/2026
HOU
George Bush Intercontinental Houston Airport
4h 0m
1 Stop
⏱ DEN · 0h 50mDEN Airport
22:25
05/11/2026
LAX
Ontario International Airport
₹17,636
per person
✓ Refundable🔥 Last 4 seats8 fare options
American Airlines
AA-700
06:00
05/11/2026
IAH
George Bush Intercontinental Houston Airport
4h 8m
1 Stop
⏱ DFW · 1h 24mDFW Airport
10:08
05/11/2026
SNA
Ontario International Airport
₹17,734
per person
✕ Non-refundable🔥 Last 1 seats9 fare options
Delta Air Lines
DL-2376
19:59
05/11/2026
IAH
George Bush Intercontinental Houston Airport
3h 54m
1 Stop
⏱ SLC · 0h 35mSLC Airport
23:53
05/11/2026
LAX
Ontario International Airport
₹18,852
per person
✕ Non-refundable
United Airlines
UA-2095
22:02
05/11/2026
IAH
George Bush Intercontinental Houston Airport
1h 42m
Non-stop
23:44
05/11/2026
LAX
Ontario International Airport
₹18,959
per person
✕ Non-refundable🔥 Last 1 seats5 fare options
United Airlines
UA-2388
21:12
05/11/2026
IAH
George Bush Intercontinental Houston Airport
1h 50m
Non-stop
23:02
05/11/2026
LAX
Ontario International Airport
₹18,959
per person
✕ Non-refundable5 fare options
Delta Air Lines
DL-2617
17:54
05/11/2026
IAH
George Bush Intercontinental Houston Airport
5h 56m
1 Stop
⏱ MSP · 1h 2mMSP Airport
23:50
05/11/2026
LAX
Ontario International Airport
₹19,411
per person
✕ Non-refundable
American Airlines
AA-1865
16:42
05/11/2026
IAH
George Bush Intercontinental Houston Airport
5h 58m
1 Stop
⏱ DFW · 3h 11mDFW Airport
22:40
05/11/2026
ONT
Ontario International Airport
₹19,515
per person
✕ Non-refundable17 fare options
American Airlines
AA-6281
18:25
05/11/2026
IAH
George Bush Intercontinental Houston Airport
3h 34m
1 Stop
⏱ PHX · 1h 8mPHX Airport
21:59
05/11/2026
ONT
Ontario International Airport
₹19,515
per person
✓ Refundable17 fare options
American Airlines
AA-2157
19:59
05/11/2026
IAH
George Bush Intercontinental Houston Airport
3h 47m
1 Stop
⏱ DFW · 1h 8mDFW Airport
23:46
05/11/2026
ONT
Ontario International Airport
₹19,515
per person
✓ Refundable17 fare options
American Airlines
AA-1865
16:42
05/11/2026
IAH
George Bush Intercontinental Houston Airport
5h 57m
1 Stop
⏱ DFW · 3h 0mDFW Airport
22:39
05/11/2026
SNA
Ontario International Airport
₹20,082
per person
✕ Non-refundable🔥 Last 2 seats4 fare options
Southwest Airlines
WN-2750
11:00
05/11/2026
HOU
George Bush Intercontinental Houston Airport
2h 55m
1 Stop
⏱ AUS · 0h 40mAUS Airport
13:55
05/11/2026
LAX
Ontario International Airport
₹20,445
per person
✓ Refundable🔥 Last 2 seats8 fare options
Southwest Airlines
WN-41
18:25
05/11/2026
HOU
George Bush Intercontinental Houston Airport
3h 35m
1 Stop
⏱ LAS · 1h 5mLAS Airport
22:00
05/11/2026
LAX
Ontario International Airport
₹20,445
per person
✓ Refundable8 fare options
Southwest Airlines
WN-3414
13:40
05/11/2026
HOU
George Bush Intercontinental Houston Airport
3h 55m
1 Stop
⏱ PHX · 1h 40mPHX Airport
17:35
05/11/2026
LAX
Ontario International Airport
₹20,445
per person
✓ Refundable8 fare options
😕 No flights match your filters.
Houston (IAH)
📍 George Bush Intercontinental Houston Airport
🌍 United States
🕐 GMT -6
📐 Latitude: 29.984399795532227
📐 Longitude: -95.34140014648438
Ontario (ONT)
📍 Ontario International Airport
🌍 United States
🕐 GMT -8
📐 Latitude: 34.055999755859375
📐 Longitude: -117.60099792480469
✈ Distance: Houston, TX,USA to Ontario,USA — 2142.26 km
📅 Results on this page are loaded for 11 May 2026. Click View all flights for the complete live search.
Houston to Ontario — what to expect when booking
The IAH–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 Houston, TX,USA and Ontario,USA is approximately
2142.26 km.
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❓ Frequently asked questions — Houston 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 Houston, TX,USA (IAH) and Ontario,USA (ONT) is approximately 2142.26 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.