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256 € Cheap Flights from Ontario International to Des Moines

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      Travellers and cabin class, 1 Adult, Economy

      Compare Ontario International to Des Moines flight deals

      Find the cheapest month or even day of the year to fly to Des Moines

      Book the best Des Moines fare with no extra fees

      Flight deals from Ontario International to Des Moines

      Looking for a cheap last-minute deal or the best return flight from Ontario International Airport to Des Moines Airport? If you want to travel next month, return fares start from 333 €. Find the lowest prices on one-way and return tickets right here.
      Des Moines.256 € per passenger.Departing Thu, 24 Sep, returning Sun, 27 Sep.Return flight with Frontier Airlines and Allegiant Air.Outbound indirect flight with Frontier Airlines, departs from Ontario International on Thu, 24 Sep, arriving in Des Moines.Inbound indirect flight with Allegiant Air, departs from Des Moines on Sun, 27 Sep, arriving in Ontario International.Price includes taxes and charges.From 256 €, select.
      Des Moines.293 € per passenger.Departing Mon, 28 Sep, returning Sun, 4 Oct.Return flight with Frontier Airlines and Allegiant Air.Outbound indirect flight with Frontier Airlines, departs from Ontario International on Mon, 28 Sep, arriving in Des Moines.Inbound indirect flight with Allegiant Air, departs from Des Moines on Sun, 4 Oct, arriving in Ontario International.Price includes taxes and charges.From 293 €, select.
      Des Moines.332 € per passenger.Departing Sat, 7 Nov, returning Mon, 9 Nov.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Ontario International on Sat, 7 Nov, arriving in Des Moines.Inbound indirect flight with Southwest Airlines, departs from Des Moines on Mon, 9 Nov, arriving in Ontario International.Price includes taxes and charges.From 332 €, select.
      Des Moines.333 € per passenger.Departing Tue, 6 Oct, returning Tue, 13 Oct.Return flight with United.Outbound indirect flight with United, departs from Ontario International on Tue, 6 Oct, arriving in Des Moines.Inbound indirect flight with United, departs from Des Moines on Tue, 13 Oct, arriving in Ontario International.Price includes taxes and charges.From 333 €, select.
      Des Moines.338 € per passenger.Departing Sat, 5 Dec, returning Mon, 7 Dec.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Ontario International on Sat, 5 Dec, arriving in Des Moines.Inbound indirect flight with Southwest Airlines, departs from Des Moines on Mon, 7 Dec, arriving in Ontario International.Price includes taxes and charges.From 338 €, select.
      Des Moines.366 € per passenger.Departing Tue, 15 Dec, returning Sun, 10 Jan.Return flight with Delta.Outbound indirect flight with Delta, departs from Ontario International on Tue, 15 Dec, arriving in Des Moines.Inbound indirect flight with Delta, departs from Des Moines on Sun, 10 Jan, arriving in Ontario International.Price includes taxes and charges.From 366 €, select.
      Des Moines.379 € per passenger.Departing Thu, 22 Oct, returning Sat, 7 Nov.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Ontario International on Thu, 22 Oct, arriving in Des Moines.Inbound indirect flight with Southwest Airlines, departs from Des Moines on Sat, 7 Nov, arriving in Ontario International.Price includes taxes and charges.From 379 €, select.
      Des Moines.394 € per passenger.Departing Mon, 12 Apr, returning Fri, 16 Apr.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Ontario International on Mon, 12 Apr, arriving in Des Moines.Inbound indirect flight with Southwest Airlines, departs from Des Moines on Fri, 16 Apr, arriving in Ontario International.Price includes taxes and charges.From 394 €, select.
      Des Moines.620 € per passenger.Departing Sun, 29 Nov, returning Fri, 18 Dec.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Ontario International on Sun, 29 Nov, arriving in Des Moines.Inbound indirect flight with Southwest Airlines, departs from Des Moines on Fri, 18 Dec, arriving in Ontario International.Price includes taxes and charges.From 620 €, select.

      Find the cheapest month to fly from Ontario International to Des Moines

      We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Ontario International to Des Moines flights are currently cheapest in September.
      Sep
      from 256 €
      Oct
      from 333 €
      Nov
      from 332 €
      Dec
      from 338 €
      Jan
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      Feb
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      Mar
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      Apr
      from 394 €
      May
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      Jun
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      Jul
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      Aug
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      Ontario International to Des Moines: Alternative routes

      Compare routes from Ontario International to Des Moines below. You may find an airport to fly into that's cheaper, faster, or easier than Des Moines.

      Des Moines

      8km from central Des Moines
      ClosestCheapest
      from 256 €
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      Ontario to Des Moines: Flight information

      The things to know before you go.
      Cheapest flight found256 €
      Cheapest month to flySeptember

      Finding cheap flights from Ontario International to Des Moines: Frequently asked questions

      The best price we found for a return flight from Ontario International to Des Moines is 256 €. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
      Currently, there are no airlines that fly direct from Ontario International to Des Moines. But we found flights with one or more stops from 256 €.
      As of September 2026, there are no flights flying from Ontario International to Des Moines.
      The cheapest month to fly from Ontario International to Des Moines is usually September.
      After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Ontario International Airport to Des Moines Airport on Thursday, 24 September 2026.
      No airlines currently offer direct flights between Ontario International Airport and Des Moines Airport. Most routes have one or more stops.
      We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Des Moines but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

      We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Des Moines is around 40 days in advance, so don’t leave your flight to the last minute.

      Currently, Frontier Airlines offers the cheapest flight tickets to Des Moines.

      Travelling from Ontario International Airport (ONT) to Des Moines Airport (DSM): what you need to know

      • Give yourself enough time to make your ONT to DSM flight. It's generally best to arrive at least two hours before international departures and an hour ahead for domestic flights.

      • You'll likely experience longer lines during popular months such as July. Arriving up to four hours in advance for international flights and two hours for a domestic departure is a good idea.

      • Consider adding a stopover when booking your ticket from Ontario International Airport to Des Moines Airport. Just uncheck 'Direct flights only' to break up your journey, or enjoy a detour to a new and interesting place. Check out these options between ONT and DSM:

        • Dallas Fort Worth International Airport

        • Denver International Airport

        • Phoenix Sky Harbour Airport

      How to find the cheapest flights from Ontario International Airport (ONT) to Des Moines Airport (DSM)

      • The cheapest price we've seen for a one-way Ontario International Airport to Des Moines Airport flight is 131 €. A return plane ticket is currently 256 €. Depending on the availability and when you book, these fares may change.

      • It's usually best to book ahead of time if you're looking for cheap tickets from ONT to DSM. That's because flight prices are based on demand, which tends to increase closer to departure.

      • Finding cheap flights from Ontario International Airport to Des Moines Airport is more likely if you can be flexible with your travel dates. Use the 'Whole month' tool to see the lowest fares across every month and bag a great deal.

      • You won't have to check back in every day to see if fares have gone down when you set up a Price Alert. We'll let you know the moment there's a change in price on cheap flights from ONT to DSM.

      • Select your preferred departure and arrival times, airlines and number of stops with the filters. Or sort your results by 'Cheapest' to find the best deals on flights from Ontario International Airport to Des Moines Airport.

      Handy information about Ontario International Airport (ONT)

      • You'll find ONT at 2900 E. Airport Drive.

      • 83% of flights departing from Ontario International Airport land at their destination as planned. With its impressive on-time stats, you're unlikely to experience delays when taking off from ONT.

      • Central Ontario to Ontario International Airport is around 10 kilometres. Depending on traffic, it'll take you about 15 minutes to get there if you're catching a taxi, ride-sharing or driving.

      • The journey on public transport takes roughly 45 minutes.

      • Searching for a handy hotel close to ONT? If you've booked an early flight from Ontario International Airport to Des Moines Airport, these stays will put you moments from your departure gate:

      Arriving at Des Moines Airport (DSM)

      When to fly to Des Moines Airport (DSM)

      • August is the most popular month for flights from Ontario International Airport to Des Moines Airport. To escape the crowds, travel to Des Moines in March.

      • The warmest month in Des Moines is July, with temperatures ranging between 15ºC (59ºF) and 31ºC (88ºF). Lock in your flights from Ontario International Airport to Des Moines Airport in this month if this is the kind of weather you like.

      • January has average temperatures of between -13ºC (9ºF) and 2ºC (36ºF). Look for cheap tickets from ONT to DSM around that time if you like travelling in cooler conditions.

      Explore more of the United States

      • Des Moines has its own special appeal, but there are so many other parts of the United States you'll want to see. About 499 kilometres east of Des Moines, a visit to Chicago will keep you on the move. Start with leading sights like Millennium Park, Art Institute of Chicago and Willis Tower.

      • Milwaukee is another essential stop in the United States and is around 499 kilometres east of Des Moines. No trip is complete without experiencing Richards Duplex Apartments by Frank Lloyd Wright, Miller Park and Milwaukee County Zoo.

      Plan the rest of your trip from Ontario to Des Moines

      Prices shown on this page are estimated lowest prices only. Found in the last 12 days.