The cheapest times to fly from STL to MMH are

  • August 6th to September 23rd
  • December 3rd to April 1st (except the week of December 24th)

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 STL to MMH is early January. Prices can be as high as $1277 for Sunday flights during mid June, or as low as $559 for Tuesday flights around early January.


When to Fly to Mammoth Lakes

Flying from St. Louis, MO (STL) to Mammoth Lakes, CA (MMH) will usually cost between $562 to $1110 per person if booking more than four weeks in advance. On average the very cheapest time to fly is early January with an average ticket price of $570. Due to high demand the most expensive time to fly is mid June, with an average price of $1112. Planning your trip to low-cost times can easily save you $542 on economy flights and even more on first-class flights. Generally, any price below $757 can be considered a good price for a round-trip STL to MMH flight.

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

STL to MMH Flight Prices

Compared to other flights, the STL to MMH flight is cheaper than the average and costs less than the average flight leaving from St. Louis. The average price per mile (for a direct flight) is $0.3, which is in the normal range for a flight.


Flight Prices by Day of the Week

Tuesday is usually the cheapest day to fly to MMH, and Wednesday the cheapest day to fly back into STL. 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 $169 (18%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Tuesday and returning a week later will cost an average of $732. Return trip prices are from the MMH to STL 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 STL to MMH can generally find a 1-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 3 hour 45 minutes may not 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 not usually a nonstop flight from STL to MMH while comparing.

Destination alternative #1: Fresno Yosemite International Airport (FAT) in Fresno, CA

  • 76 miles (122 km) away from MMH
  • Usually 50.07% less expensive than MMH
  • 1-layover flights available

See STL to FAT flights

Destination alternative #2: Reno/Tahoe International Airport (RNO) in Reno, NV

  • 138 miles (222 km) away from MMH
  • Usually 45.24% less expensive than MMH
  • 1-layover flights available

See STL to RNO flights


Flight Hacking STL to MMH

Flight hacking is when you book two tickets instead of a layover, sometimes with different airlines. You will need to either bring only a carry-on bag (highly recommended) or leave yourself plenty of time to go through security again. Flight hacking is completely allowed, but airlines don’t always tell you the cheapest way to get from STL to MMH — but Champion Traveler does!

Hack #1: Los Angeles, CA (STL > LAX > MMH)

  • Price for both tickets: $619
  • Average savings: $139 (18.3%)

See STL to LAX flights

Hack #2: San Francisco, CA (STL > SFO > MMH)

  • Price for both tickets: $697
  • Average savings: $60 (7.93%)

See STL to SFO flights

Hack #3: Denver, CO (STL > DEN > MMH)

  • Price for both tickets: $708
  • Average savings: $49 (6.47%)

See STL to DEN flights


Flight Questions Answered

Still have questions about flying from STL to MMH? We’ve got answers.

Which airlines fly this route?

You can find 4 major airlines flying this route most often: Alaska, American, Delta, United, and potentially more during busy seasons.

How far away is it from Mammoth Lakes Airport to St Louis Lambert International Airport?

The distance between the two airports is roughly 1542 miles or 2482 kilometers.

How long does it take to fly from STL to MMH?

The real-world flight time for a nonstop STL to MMH flight is about 3 hour 45 minutes.

How many flights go between St. Louis, MO and Mammoth Lakes, CA?

It depends on the day of the week and the date, but a typical day might have around 40 available flights from STL to MMH.


Airport Location Info


Departing Airport

Origination codeSTL
Origination airport nameSt Louis Lambert International Airport
CitySt. Louis, MO
Countrythe United States

Return Airport

Destination codeMMH
Destination airport nameMammoth Lakes Airport
CityMammoth Lakes, CA
Countrythe United States


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.