ONT - MLI

$359 Find Cheap Flights from Ontario to Moline

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ontario to Moline departing on 6/4. 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 Moline

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Moline, 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 Ontario to Moline, as well as popular online travel agencies
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Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$359
Overall average: $567
Delta
Thu 6/4Sun 6/7
ONT - MLI • 1 stop
Cheapest one-way
$385
Alaska Airlines
Tue 4/7
ONT - MLI • 2 stops
Top airlines
Delta
Cheapest • from $359 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
October
Cheapest • 36% price drop
May
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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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 Moline!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Ontario to Moline (ONT-MLI)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to Moline 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 Ontario to Moline

Thu, Jun 4 - Sun, Jun 7
Delta Logo
10:59 pm - 10:26 am
ONT
-
MLI
9h 27m1 stop
Delta Logo
11:00 am - 6:15 pm
MLI
-
ONT
9h 15m1 stop
$359Delta
Sat, Jan 17 - Tue, Jan 20
United Airlines Logo
1:24 pm - 8:34 pm
ONT
-
MLI
5h 10m1 stop
United Airlines Logo
3:45 pm - 12:47 pm
MLI
-
ONT
23h 02m2 stops
$452United Airlines
Sat, Jan 17 - Tue, Jan 20
United Airlines Logo
6:00 am - 8:34 pm
ONT
-
MLI
12h 34m2 stops
United Airlines Logo
3:45 pm - 12:47 pm
MLI
-
ONT
23h 02m2 stops
$457United Airlines
Mon, Jan 26 - Mon, Feb 2
United Airlines Logo
1:24 pm - 8:34 pm
ONT
-
MLI
5h 10m1 stop
United Airlines Logo
8:46 am - 8:58 pm
MLI
-
ONT
14h 12m1 stop
$465United Airlines
Sat, Jan 17 - Tue, Jan 20
United Airlines Logo
1:24 pm - 8:34 pm
ONT
-
MLI
5h 10m1 stop
United Airlines Logo
8:46 am - 8:58 pm
MLI
-
ONT
14h 12m1 stop
$467United Airlines
Sat, Jan 17 - Tue, Jan 20
United Airlines Logo
1:24 pm - 8:34 pm
ONT
-
MLI
5h 10m1 stop
United Airlines Logo
3:45 pm - 8:58 pm
MLI
-
ONT
31h 13m2 stops
$477United Airlines
Sat, Jan 17 - Tue, Jan 20
United Airlines Logo
6:00 am - 8:34 pm
ONT
-
MLI
12h 34m2 stops
United Airlines Logo
5:29 pm - 8:58 pm
MLI
-
ONT
29h 29m2 stops
$482United Airlines
Sat, Jan 17 - Tue, Jan 20
United Airlines Logo
1:24 pm - 8:34 pm
ONT
-
MLI
5h 10m1 stop
United Airlines Logo
8:46 am - 8:58 pm
MLI
-
ONT
14h 12m1 stop
$492United Airlines
Mon, Jan 26 - Mon, Feb 2
United Airlines Logo
6:00 am - 4:54 pm
ONT
-
MLI
8h 54m2 stops
United Airlines Logo
8:46 am - 8:58 pm
MLI
-
ONT
14h 12m1 stop
$495United Airlines
Sat, Jan 17 - Tue, Jan 20
United Airlines Logo
1:24 pm - 8:34 pm
ONT
-
MLI
5h 10m1 stop
United Airlines Logo
8:46 am - 8:58 pm
MLI
-
ONT
14h 12m1 stop
$502United Airlines
Booking Insights

KAYAK's insights & trends for Ontario to Moline flights

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

What’s the cheapest day of the week to fly from Ontario to Moline?

The average price of all round-trip flights from Ontario to Moline clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Ontario to Moline, look for departures on Mondays and avoid leaving on a Thursday, as it's usually the priciest day. When flying back from Moline, Saturday is the cheapest day to fly and Thursday is the most expensive.

What is the cheapest month to fly from Ontario to Moline?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Ontario to Moline, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Ontario to Moline is October, where tickets cost $294 (return) on average. On the other hand, the most expensive months are March and July, where the average cost of round-trip tickets is $743 and $698 respectively.

Good to know

Low seasonMarch
Cheapest flight$359
Best time to beat the crowds but there is an average 61% increase in price.
Most popular time to fly and prices are also 4% lower on average.
Flight from Ontario to Moline

When to book flights from Ontario to Moline

Are your dates flexible? Find out the best times to travel from Ontario to Moline 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 Ontario to Moline

  • What is the cheapest flight from Ontario to Moline?

    In the last 3 days, the lowest price for a flight from Ontario to Moline was $385 for a one-way ticket and $359 for a round-trip.

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

    A passport is not required to fly from Ontario to Moline.

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

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

  • Which airline alliances offer flights from Ontario to Moline?

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

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

    The two airlines most popular with KAYAK users for flights from Ontario to Moline are United Airlines and American Airlines. With an average price for the route of $486 and an overall rating of 7.4, United Airlines is the most popular choice. American Airlines is also a great choice for the route, with an average price of $378 and an overall rating of 7.2.

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

    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 Ontario to Moline.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Moline from Ontario 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 Ontario to Moline?

    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 Moline with an airline and back to Ontario with another airline. Booking your flights between Ontario and MLI 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 Ontario to Moline?

    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 Moline from Ontario 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 Ontario to Moline

 
See real verified KAYAK customer reviews for airlines flying from Ontario to Moline. 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 Ontario to Moline? 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.
7.4
United AirlinesOverall score based on 9120 reviews
7.7Boarding
7.3Comfort
8.1Crew
7.1Entertainment
6.6Food
Airline reviews

They did the one thing that really matters - got to Chicago early.

10.0 ExcellentRob, Dec 2025
RIC - ORD
Read more United Airlines reviews

They did the one thing that really matters - got to Chicago early.

The flight was on time. I generally don’t drink or eat on short flights and the seats were good and the flight attendants were friendly. That’s all I expect

It was nice to have gotten up upgraded to first class with a meal on a three hour flight

Very bad! They kept delaying my flight and wouldn’t do anything about it

Door to door, the crew and staff were amazing. It was a stressful travel day with delays, but they were focused on customers and doing what they could to get us to our destinations.

Flight was delayed only slightly before takeoff due to traffic control. However, the flight arrived early to ORD. Good flight. United has been very reliable for me.

Another delayed flight. When the delays exceed the duration of the flight, it’s a problem.

After boarding the plane in Chicago, the passengers were told that there was a technical problem with the plane. Passengers remained on the plane as they tried to fix the problem. After what was probably an hour passengers were told that there was a need to change planes as the problem was not solved. Passengers disembarked and boarded another plane. After taxing to the runway and waiting for takeoff, passengers were told that owing to the thunderstorm the flight was unable to take off but would try and reroute. After some time passengers were told there wasn't enough fuel for the new route and the plane had to return to the gate for additional fuel. after another log delay the flight got underway. On the plane there was food, drinks, ice or entertainment. We were a glass of water, which appeared rationed. Flight arrived about 5 hours late. The pilot was fantastic and communicated with the passengers throughout the ordeal.

Better WiFi. I cannot understand that in 2025, United is so behind on a technology that is now a necessity and still painfully unreliable, slow and keeps disconnecting.

Trip was great. A wild landing in Ottawa with the wind and rain, but the pilot did a great job. Always love flying United.👍

The boarding process needs to be fixed. The zone don't work, especially when there is hardly anyone in zones 3, 4,and 5, leaving the majority of the passengers backed up in the aisle, especially because passengers seated near the front are blocking passengers who are seated in the rear of the plane. It would also help if the size of carry on bags was more strictly enforced.

Awful. They won’t help me with anything. I booked on American but they abdicated to Iberia. The ticket was overpriced. Everything negative

I enjoyed the extra leg room compared to other airlines. The first stewards made my daughter’s birthday special by giving her an extra snack. Then the last one coming home from Chicago to Appleton made our night really enjoyable Thanks for making our trip enjoyable

It was good..clean, comfy seat. Friendly warm welcoming crew. Was able to check my cabin luggage at the gate which I was able to pickup in a decent time from baggage claim. The app gave all updates from delays to baggage claim info. Overall smooth flight.

It was a typical flight. We had a delay which seems to be the normality now. And we had no in flight service due to conditions.

After we landed we sat on the tarmac for 1.5 hours waiting to get to our gate. Ridiculous.

Terrible. Flight delayed for more than 8 hours with only a $12 meal voucher provided for the inconvenience. The airplane did not have breaks on arrival yet they still made us go through the motions and board on time knowing we could not take off then sit for 40+ minutes before having to get of the time. A complete waste of my time. I cannot believe they can stay business with these shenanigans. I’ll avoid this company like the plague moving forward as the lack of accountability is disgraceful.

This was the best 2 flights I have had with American out of SGF. Great crew both flights.

Excellent - explanations were clear staff was nice and flight was comfortable

Lost bag and 2 days no word leaving for cruise no clothes or stuff

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

Information on your arrival and departure airports