$306+ Cheap flights from Montgomery to Ontario (MGM - ONT)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/15. Fares are subject to change and may not be available on all flights or dates of travel.
MGM — ONT
Nov 19 — Nov 261
Round-trip
1 adult, Economy
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Find cheap flights from Montgomery to Ontario with Cheapflights
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Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Cheapest flights from Montgomery to OntarioExplore the most affordable flight options available from Montgomery to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 20, 2026.
Explore the most affordable flight options available from Montgomery to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 20, 2026.
This Delta deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/152:46 pm -
1 stop8h 12m
Wed 12/2310:35 pm -
1 stop8h 37m
Deal found 10/19![Delta logo]()
$306
This Delta deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1112:42 pm -
1 stop7h 56m
Mon 12/1411:08 pm -
1 stop7h 52m
Deal found 10/15![Delta logo]()
$317
This Delta deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1112:42 pm -
1 stop7h 56m
Sun 12/136:00 am -
2 stops9h 44m
Deal found 10/18![Delta logo]()
$343
This Delta deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/912:32 pm -
1 stop8h 02m
Mon 11/1611:10 pm -
1 stop7h 55m
Deal found 10/16![Delta logo]()
$347
This Delta deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/176:00 am -
1 stop7h 07m
Mon 12/2110:35 pm -
1 stop8h 37m
Deal found 10/19![Delta logo]()
$367
This Delta deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/152:46 pm -
1 stop8h 12m
Sat 12/1910:35 pm -
1 stop8h 37m
Deal found 10/19![Delta logo]()
$387
This American Airlines deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/156:14 pm -
1 stop6h 44m
Tue 12/222:22 pm -
1 stop5h 56m
Deal found 10/18![American Airlines logo]()
$405
This United Airlines deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/144:55 pm -
1 stop6h 45m
Tue 11/176:00 am -
1 stop8h 20m
Deal found 10/14![United Airlines logo]()
$406
This Delta deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/152:46 pm -
1 stop8h 12m
Fri 12/2511:10 am -
1 stop6h 45m
Deal found 10/19![Delta logo]()
$407
This Delta deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/152:46 pm -
2 stops11h 11m
Tue 12/225:05 pm -
2 stops14h 07m
Deal found 10/15![Delta logo]()
$418
Best flights from Montgomery to OntarioDiscover carefully curated flight deals from Montgomery to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 20, 2026.
Discover carefully curated flight deals from Montgomery to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 20, 2026.
This United Airlines deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/184:55 pm -
1 stop6h 45m
Tue 11/246:00 am -
1 stop8h 20m
Deal found 10/18![United Airlines logo]()
$306
This Delta deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/912:32 pm -
1 stop8h 02m
Mon 11/1611:10 pm -
1 stop7h 55m
Deal found 10/16![Delta logo]()
$347
This American Airlines deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/156:14 pm -
1 stop6h 44m
Tue 12/222:22 pm -
1 stop5h 56m
Deal found 10/15![American Airlines logo]()
$429
This Delta deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/176:00 am -
1 stop7h 07m
Fri 12/2511:10 am -
1 stop6h 45m
Deal found 10/19![Delta logo]()
$407
This United Airlines deal was found by Cheapflights users on 10/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/115:02 pm -
1 stop6h 57m
Mon 12/145:45 am -
1 stop8h 35m
Deal found 10/17![United Airlines logo]()
$426
This Delta deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/152:46 pm -
2 stops11h 11m
Tue 12/225:05 pm -
2 stops14h 07m
Deal found 10/15![Delta logo]()
$418
This United Airlines deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/244:55 pm -
1 stop6h 45m
Fri 12/115:45 am -
1 stop8h 35m
Deal found 10/14![United Airlines logo]()
$447
This Delta deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/31:13 pm -
2 stops10h 58m
Sat 11/712:16 pm -
1 stop6h 17m
Deal found 10/19![Delta logo]()
$464
This United Airlines deal was found by Cheapflights users on 10/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/144:55 pm -
1 stop6h 45m
Tue 11/176:00 am -
1 stop8h 20m
Deal found 10/17![United Airlines logo]()
$467
This Delta deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2512:42 pm -
2 stops13h 07m
Mon 11/3011:10 pm -
1 stop7h 50m
Deal found 10/16![Delta logo]()
$488
Last-minute flights from Montgomery to OntarioDiscover last-minute flight deals from Montgomery to Ontario. Data last updated October 20, 2026 and is based on user searches.
Discover last-minute flight deals from Montgomery to Ontario. Data last updated October 20, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/37:00 am -
1 stop8h 31m
Sat 11/77:00 am -
1 stop8h 42m
Deal found 10/19![American Airlines logo]()
$458
This Delta deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/31:13 pm -
2 stops10h 58m
Sat 11/712:16 pm -
1 stop6h 17m
Deal found 10/19![Delta logo]()
$464
This American Airlines deal was found by Cheapflights users on 10/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/712:21 pm -
1 stop8h 21m
Fri 11/132:22 pm -
1 stop6h 05m
Deal found 10/17![American Airlines logo]()
$448
This Delta deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/912:32 pm -
1 stop8h 02m
Mon 11/1611:10 pm -
1 stop7h 55m
Deal found 10/16![Delta logo]()
$347
This United Airlines deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/144:55 pm -
1 stop6h 45m
Tue 11/176:00 am -
1 stop8h 20m
Deal found 10/14![United Airlines logo]()
$406
This United Airlines deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/184:55 pm -
1 stop6h 45m
Tue 11/246:00 am -
1 stop8h 20m
Deal found 10/18![United Airlines logo]()
$306
This United Airlines deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/244:55 pm -
1 stop6h 45m
Fri 12/115:45 am -
1 stop8h 35m
Deal found 10/14![United Airlines logo]()
$447
One-way flights from Montgomery to OntarioSearch for one-way flight options from Montgomery to Ontario. Find affordable one-way fares based on user searches. Data last updated October 20, 2026.
Search for one-way flight options from Montgomery to Ontario. Find affordable one-way fares based on user searches. Data last updated October 20, 2026.
This United Airlines deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/214:50 pm -
1 stop7h 21m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/18![United Airlines logo]()
$427
This Delta deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/276:00 am -
1 stop7h 06m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/14![Delta logo]()
$457
This American Airlines deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/277:00 am -
2 stops10h 16m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/14![American Airlines logo]()
$463
This Delta deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/252:42 pm -
1 stop9h 12m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/15![Delta logo]()
$482
This American Airlines deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/255:30 am -
2 stops10h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/14![American Airlines logo]()
$598
This United Airlines deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/254:55 pm -
1 stop6h 46m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/15![United Airlines logo]()
$954
Find flight deals from Montgomery to Ontario
Discover tips and strategies to find the most affordable flight options for your journey from Montgomery (MGM) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 20, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $306 (Delta) |
Popular in | March |
Cheapest in | February |
Average price | $386 |
Cheapflights Fare Finder
Customize your flight search to find flights from Montgomery to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated October 20, 2026.
Use the filters below to find and compare flights from Montgomery to Ontario that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
MontgomeryOntario
MGM Montgomery Dannelly Field - ONT Ontario
MGMONT
Montgomery Dannelly Field
Wed 11/18
4:55 pm-9:40 pm
1 stop6h 45m
Ontario
Tue 11/24
6:00 am-4:20 pm
1 stop8h 20m
$306
MontgomeryOntario
MGM Montgomery Dannelly Field - ONT Ontario
MGMONT
Montgomery Dannelly Field
Mon 11/9
12:32 pm-6:34 pm
1 stop8h 02m
Ontario
Mon 11/16
11:10 pm-9:05 am
1 stop7h 55m
$347
MontgomeryOntario
MGM Montgomery Dannelly Field - ONT Ontario
MGMONT
Montgomery Dannelly Field
Thu 12/17
6:00 am-11:07 am
1 stop7h 07m
Ontario
Fri 12/25
11:10 am-7:55 pm
1 stop6h 45m
$407
MontgomeryOntario
MGM Montgomery Dannelly Field - ONT Ontario
MGMONT
Montgomery Dannelly Field
Tue 12/15
2:46 pm-11:57 pm
2 stops11h 11m
Ontario
Tue 12/22
5:05 pm-9:12 am
2 stops14h 07m
$418
MontgomeryOntario
MGM Montgomery Dannelly Field - ONT Ontario
MGMONT
Montgomery Dannelly Field
Fri 12/11
5:02 pm-9:59 pm
1 stop6h 57m
Ontario
Mon 12/14
5:45 am-4:20 pm
1 stop8h 35m
$426
MontgomeryOntario
MGM Montgomery Dannelly Field - ONT Ontario
MGMONT
Montgomery Dannelly Field
Mon 12/21
4:50 pm-10:11 pm
1 stop7h 21m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$427
MontgomeryOntario
MGM Montgomery Dannelly Field - ONT Ontario
MGMONT
Montgomery Dannelly Field
Tue 12/15
6:14 pm-10:58 pm
1 stop6h 44m
Ontario
Tue 12/22
2:22 pm-10:18 pm
1 stop5h 56m
$429
MontgomeryOntario
MGM Montgomery Dannelly Field - ONT Ontario
MGMONT
Montgomery Dannelly Field
Tue 11/24
4:55 pm-9:40 pm
1 stop6h 45m
Ontario
Fri 12/11
5:45 am-4:20 pm
1 stop8h 35m
$447
MontgomeryOntario
MGM Montgomery Dannelly Field - ONT Ontario
MGMONT
Montgomery Dannelly Field
Tue 10/27
6:00 am-11:06 am
1 stop7h 06m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$457
MontgomeryOntario
MGM Montgomery Dannelly Field - ONT Ontario
MGMONT
Montgomery Dannelly Field
Tue 11/3
1:13 pm-10:11 pm
2 stops10h 58m
Ontario
Sat 11/7
12:16 pm-8:33 pm
1 stop6h 17m
$464
Showing 1-10 of 16 resultsSorted by cheapest first
- Most accurate provider: When it comes to deals on Montgomery-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Montgomery-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Montgomery-Ontario flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Montgomery-Ontario flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Montgomery-Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Montgomery to Ontario
Have a flexible travel schedule? Discover the best time to fly to Ontario from Montgomery with our price prediction graph.
MGM-ONT
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Reviews of airlines servicing Ontario
Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated October 20, 2026.
See what other customers who have flown with American Airlines from Montgomery to Ontario have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.1
Entertainment
6.8
Overall
7.0
Crew
7.9
Boarding
7.4
Food
6.4
Reviews
1 / 20
2.0
MediocreAnonymous,Mar 2026
MIA - SFO
Comfort
7.1
Entertainment
6.8
Overall
7.0
Crew
7.9
Boarding
7.4
Food
6.4
Reviews
1 / 20
2.0
MediocreAnonymous,Mar 2026
MIA - SFO
Related info for your journey
Find useful and relevant information for your journey from Montgomery to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Complete your trip to Ontario by adding a car rental and/or hotel reservation to your travel itinerary.
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Find flights from Montgomery to Ontario, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Other flights to Ontario
Explore flights to Ontario departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on October 20, 2026.
Montgomery and Ontario flights
Browse other Montgomery and Ontario flight options. Last updated on October 20, 2026.
Other flights from Montgomery
Browse through other flights departing from Montgomery. Flights are based on user searches made on Cheapflights and were last updated on October 20, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top airline flying from Montgomery to Ontario
Discover the top airline that operate flights from Montgomery to Ontario. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated October 20, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$338 | Average$585 | FlexibilityNo cancel fee | On-time71% |