The cheapest times to fly from IAH to DSM are

  • January 8th to February 25th (except the weeks of January 29th and February 12th)
  • May 28th to June 10th
  • August 6th to November 18th

based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from IAH to DSM is late September. Prices can be as high as $459 for Sunday flights during early March, or as low as $287 for Wednesday flights around late September.


When to Fly to Des Moines

Flying from Houston, TX (IAH) to Des Moines, IA (DSM) will usually cost between $294 to $411 per person if booking more than four weeks in advance. On average the very cheapest time to fly is late September with an average ticket price of $316. Due to high demand the most expensive time to fly is early March, with an average price of $406. Planning your trip to low-cost times can easily save you $90 on economy flights and even more on first-class flights. Generally, any price below $347 can be considered a good price for a round-trip IAH to DSM flight.

See below for a graph of average weekly prices for the IAH to DSM route. All prices are for round-trip tickets in USD.

IAH to DSM Flight Prices

Compared to other flights, the IAH to DSM flight is much cheaper than the average and costs much less than the average flight leaving from Houston. The average price per mile (for a direct flight) is $0.27, which is below average.


Flight Prices by Day of the Week

Wednesday is usually the cheapest day to depart and return on this flight. Sundays are the most expensive days to fly out or take a return trip. Selecting flights on the least expensive days could save you up to $37 (10%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Wednesday and returning a week later will cost an average of $331. Return trip prices are from the DSM to IAH flight, and often highlight the quality of our data in showing the same trend.

Departing Prices by Day

Departure Day Prices

Return Trip Prices by Day

Return Day Prices


Nonstop Flights and Layovers

Travelers looking to fly from IAH to DSM can generally find a 0-layover flight. Because there is a direct flight option the real-world direct flight time of 2 hour 26 minutes may be realistic.


Alternative Nearby Airports

Champion Traveler tells you which airports are nearby and whether tickets might be cheaper alternative airports nearby. Sometimes it’s worth it to fly into a closer airport and then commute to your destination. Remember that there is a nonstop flight from IAH to DSM while comparing.

Destination alternative #1: Eppley Airfield Airport (OMA) in Omaha, NE

  • 117 miles (188 km) away from DSM
  • Usually 21.65% less expensive than DSM
  • Nonstop flights available

See IAH to OMA flights

Destination alternative #2: Waterloo Regional Airport (ALO) in Waterloo, IA

  • 96 miles (154 km) away from DSM
  • Usually 3.90% less expensive than DSM
  • 1-layover flights available

See IAH to ALO flights


Flight Questions Answered

Still have questions about flying from IAH to DSM? We’ve got answers.

Which airlines fly this route?

You can find 6 major airlines flying this route most often: American, Delta, Frontier, Iberia, Qantas, United, and potentially more during busy seasons.

How far away is it from Des Moines International Airport to George Bush Intercontinental/Houston Airport?

The distance between the two airports is roughly 803 miles or 1292 kilometers.

How long does it take to fly from IAH to DSM?

The real-world flight time for a nonstop IAH to DSM flight is about 2 hour 26 minutes.

How many flights go between Houston, TX and Des Moines, IA?

It depends on the day of the week and the date, but a typical day might have around 75 available flights from IAH to DSM.


Airport Location Info


Departing Airport

Origination codeIAH
Origination airport nameGeorge Bush Intercontinental/Houston Airport
CityHouston, TX
Countrythe United States

Return Airport

Destination codeDSM
Destination airport nameDes Moines International Airport
CityDes Moines, IA
Countrythe United States


Late and Early Flight Data

Flights from IAH to DSM tend to depart later than the average flight. According to our recently updated data, 32% of flights departed 5 or more minutes late, and 25% of flights left 5 or more minutes early. On average you can expect to leave DSM heading for IAH about 17 minutes late. This does significantly impact arrival time, as the average landing time in Des Moines, IA is about 18 minutes late. The numbers below show a recent average of take-off times versus the scheduled departure flight:

  • Mesa: 17 minutes late
  • Some airlines not reporting


Other Resources

Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.