MGM - ONT

$365 Find Cheap Flights from Montgomery to Ontario

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Montgomery to Ontario departing on 5/19. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Ontario

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Montgomery to Ontario, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Montgomery to Ontario, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$383
United Airlines
Thu 4/30Sat 5/9
MGM - ONT • 1 stop
Cheapest one-way
$365
United Airlines
Tue 5/19
MGM - ONT • 1 stop
Top airlines
Cheapest • from $383 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Montgomery and Ontario. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $340 (round-trip)
Shortest trip • 6h 45m (one-way)
Insights
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Insights
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Ontario!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Montgomery to Ontario (MGM-ONT)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Montgomery to Ontario that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Montgomery to Ontario

Thu, Apr 30 - Sat, May 9
United Airlines Logo
4:55 pm - 9:58 pm
MGM
-
ONT
7h 03m
1 stop
United Airlines Logo
6:00 am - 4:20 pm
ONT
-
MGM
8h 20m
1 stop
$383United Airlines
Thu, Apr 30 - Sat, May 9
United Airlines Logo
4:55 pm - 9:58 pm
MGM
-
ONT
7h 03m
1 stop
United Airlines Logo
5:00 am - 4:20 pm
ONT
-
MGM
9h 20m
2 stops
$389United Airlines
Tue, May 19 - Wed, May 27
United Airlines Logo
4:55 pm - 9:58 pm
MGM
-
ONT
7h 03m
1 stop
United Airlines Logo
5:45 am - 4:16 pm
ONT
-
MGM
8h 31m
1 stop
$458United Airlines
Tue, May 19 - Wed, May 27
United Airlines Logo
4:55 pm - 9:58 pm
MGM
-
ONT
7h 03m
1 stop
United Airlines Logo
5:00 am - 4:16 pm
ONT
-
MGM
9h 16m
2 stops
$464United Airlines
Sat, May 23 - Fri, May 29
United Airlines Logo
4:51 pm - 9:55 pm
MGM
-
ONT
7h 04m
1 stop
United Airlines Logo
5:45 am - 4:16 pm
ONT
-
MGM
8h 31m
1 stop
$483United Airlines
Sat, May 23 - Wed, May 27
United Airlines Logo
4:51 pm - 9:55 pm
MGM
-
ONT
7h 04m
1 stop
United Airlines Logo
5:00 am - 4:16 pm
ONT
-
MGM
9h 16m
2 stops
$489United Airlines
Mon, May 18 - Mon, May 25
United Airlines Logo
4:55 pm - 9:58 pm
MGM
-
ONT
7h 03m
1 stop
United Airlines Logo
5:45 am - 4:16 pm
ONT
-
MGM
8h 31m
1 stop
$508United Airlines
Sat, Apr 25 - Sat, May 2
United Airlines Logo
5:00 pm - 9:50 pm
MGM
-
ONT
6h 50m
1 stop
United Airlines Logo
6:00 am - 4:20 pm
ONT
-
MGM
8h 20m
1 stop
$531United Airlines
Tue, May 19 - Wed, May 27
United Airlines Logo
4:55 pm - 9:58 pm
MGM
-
ONT
7h 03m
1 stop
United Airlines Logo
5:00 am - 4:16 pm
ONT
-
MGM
9h 16m
2 stops
$533United Airlines
Thu, May 28 - Wed, Jun 10
United Airlines Logo
4:51 pm - 9:55 pm
MGM
-
ONT
7h 04m
1 stop
United Airlines Logo
5:45 am - 4:16 pm
ONT
-
MGM
8h 31m
1 stop
$537United Airlines
Booking Insights

KAYAK's insights & trends for Montgomery to Ontario flights

Get data-powered insights and trends into flights from Montgomery to Ontario to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Montgomery to Ontario?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Montgomery to Ontario were found on United Airlines ($383) and American Airlines ($553).

Good to know

Cheapest flight$365
Most popular time to fly and prices are also 28% lower on average.
Flight from Montgomery to Ontario

When to book flights from Montgomery to Ontario

Are your dates flexible? Find out the best times to travel from Montgomery to Ontario based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Montgomery to Ontario

  • What is the cheapest flight from Montgomery to Ontario?

    In the last 3 days, the lowest price for a flight from Montgomery to Ontario was $365 for a one-way ticket and $383 for a round-trip.

  • Do I need a passport to fly between Montgomery and Ontario?

    No, a passport isn't needed to fly from Montgomery to Ontario. However, local authorities might ask for an official ID.

  • Which aircraft models fly most regularly from Montgomery to Ontario?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Montgomery to Ontario?

    SkyTeam, and oneworld are the airline alliances operating flights between Montgomery and Ontario, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from Montgomery to Ontario, Delta or American Airlines?

    The two airlines most popular with KAYAK users for flights from Montgomery to Ontario are Delta and American Airlines. With an average price for the route of $536 and an overall rating of 7.9, Delta is the most popular choice. American Airlines is also a great choice for the route, with an average price of $586 and an overall rating of 7.1.

  • How does KAYAK find such low prices on flights from Montgomery to Ontario?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Montgomery to Ontario.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Montgomery to Ontario?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario from Montgomery is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Montgomery to Ontario?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Ontario with an airline and back to Montgomery with another airline. Booking your flights between Montgomery and ONT can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Montgomery to Ontario?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ontario from Montgomery up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Montgomery to Ontario

 
See real verified KAYAK customer reviews for airlines flying from Montgomery to Ontario. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Montgomery to Ontario? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 8404 reviews
8.5Crew
8.1Boarding
7.9Comfort
7.8Entertainment
7.2Food
Airline reviews

While they turned off most cabin lights to allow people to sleep, I was bothered by how bright the side lights still were. It was still quite bright for me in a window seat, when I wish I could have slept!

10.0 ExcellentTeresa, Apr 2026
SMF - LAX
Read more Delta reviews

While they turned off most cabin lights to allow people to sleep, I was bothered by how bright the side lights still were. It was still quite bright for me in a window seat, when I wish I could have slept!

One of the flight attendants was a little cranky. I appreciated the free wifi and plug to charge my laptop

WiFi didn’t work most of the time. The usb chargers would work only occasionally for 5 mins and wouldn’t charge after that. Had to keep trying repeatedly at each of the seats in the row.

The crew bent over backwards to thank us for flying and make us comfortable. The food service was quick and efficient. The Captain communicated and said goodbye and thank you as we departed. They really stood out!

Generally on time departures and arrivals, clean planes, sky miles membership provides great benefits (complimentary upgrades, etc).

my mom urmila patel needed a wheelchair which was not available on the curbside. she needed to walk almost 50 meters inside (at the risk of falling) and then had to wait in line to get a wheelchair (this is not ok). Once obtained she had to seat in it for 30-45 minutes for someone to take her in thru the checkin process (which was fairly smooth and easy). the lady who helped her with her checkin process was very courteous and helpful

Staff at the check-in counter were friendly, happy and helpful. They tagged our bags and sent us to “bag drop off” but were not very clear about where that was. The airport was busy we headed off in what we thought was the right direction until a gentleman waved us down and actually came after us. He was the baggage handler for Delta and recognized our “deer in the headlights “ look-he brought us to the right area (which was marked as the Southwest Airlines Drop Off) and sent us on our way. Wonderful guy, low key and working with a big smile on his face. Loved it. Loved him.

Arlene was a great flight attendant. I also liked how one of the other flight attendants gave us a heads up about snacks and asked everyone to remove their headphones when it was their turn to order. Good idea.

I haven’t flown economy in over 20 years but it was not bad. Room by my feet for my bag and seat was roomy enough. Surprised in a good way.

The cabin temperature was nice and cool. The wifi was not working.

Wifi was spotty. Tray table was very dirty when I sat down.

The WiFi would not connect enough for me to do my actual work. It permaspooled, disconnected, said it was connected, then wouldn't open an email... it was frustrating. I am not a tall person, 5'4" - and I felt cramped with little room to reach into my bag under the seat in front of me. I feel sorry for anyone taller than me having to fly. the one positive thing I will add, is the overhead bins are roomy enough to manage more bags than other carriers.

Going non stop to lax like I paid for. Not stopping in MCI for gas. Too long of delays

Delayed for mechanical and no updates on what was happening and how long the delay might be.

A first class seat should fit a fat person, and this doesn't. The trays in the armrest are less functional than an ordinary tray in the back of the seat.

The experience at checkin for my American Airlines flight from Sacramento to LAX was very good including the assistance I received in getting my bags checked in and boarding passes printed. Was pleasantly surprised the my bags were checked through all the way to my destination at Clark International Airport in Angeles, Philippines.

Smooth flight. From the early boarding and all were on board before departure time and arrived early in ONT. Great crew. Thank you!!!!

The flight was significantly delayed for 6.5 hours because of snow. There was no communication once the plane returned to the gate regarding when the flight would resume. Other flights were departing while our flight was being unloaded for reasons unknown. Our flight also seemed out of the queue regarding further deicing, refueling, and waiting to Taxi to the runway.

They are always late and seats was also not having working charger

did not have enough meal for first class passengers so offer us snack

Everything you need to know for your flight from Montgomery to Ontario

Information on your arrival and departure airports