The cheapest times to fly from SDY to LAX are

  • January 1st to March 11th
  • April 2nd to April 29th
  • October 8th to March 11th (except the weeks of November 19th, November 26th, December 17th, and 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 SDY to LAX is late January and early February. Prices can be as high as $1432 for Sunday flights during early to mid August, or as low as $346 for Tuesday flights around late January and early February.


When to Fly to Los Angeles

Flying from Sidney, MT (SDY) to Los Angeles, CA (LAX) will usually cost between $366 to $709 per person if booking more than four weeks in advance. On average the very cheapest time to fly is late January and early February with an average ticket price of $379. Due to high demand the most expensive time to fly is early to mid August, with an average price of $1432. Planning your trip to low-cost times can easily save you $1053 on economy flights and even more on first-class flights. Generally, any price below $592 can be considered a good price for a round-trip SDY to LAX flight.

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

SDY to LAX Flight Prices

Compared to other flights, the SDY to LAX flight is cheaper than the average and costs much less than the average flight leaving from Sidney. The average price per mile (for a direct flight) is $0.31, which is in the normal range for a flight.


Flight Prices by Day of the Week

Tuesday 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 $105 (17%) 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 $522. Return trip prices are from the LAX to SDY 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 SDY to LAX can generally find a 2-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 3 hour 9 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 SDY to LAX while comparing.

Destination alternative #1: Ontario International Airport (ONT) in Ontario, CA

  • 47 miles (76 km) away from LAX
  • Usually 3.55% less expensive than LAX
  • 2-layover flights available

See SDY to ONT flights


Flight Hacking SDY to LAX

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 SDY to LAX — but Champion Traveler does!

Hack #1: Billings, MT (SDY > BIL > LAX)

  • Price for both tickets: $375
  • Average savings: $218 (36.74%)

See SDY to BIL flights


Flight Questions Answered

Still have questions about flying from SDY to LAX? We’ve got answers.

Which airlines fly this route?

You can find 5 major airlines flying this route most often: Alaska, American, Cape Air, Delta, United, and potentially more during busy seasons.

How far away is it from Los Angeles International Airport to Sidney Richland Regional Airport?

The distance between the two airports is roughly 1203 miles or 1936 kilometers.

How long does it take to fly from SDY to LAX?

The real-world flight time for a nonstop SDY to LAX flight is about 3 hour 9 minutes.

How many flights go between Sidney, MT and Los Angeles, CA?

It depends on the day of the week and the date, but a typical day might have around 19 available flights from SDY to LAX.


Airport Location Info


Departing Airport

Origination code SDY
Origination airport name Sidney Richland Regional Airport
City Sidney, MT
Country the United States
Latitude 47.7
Longitude -104.2

Return Airport

Destination code LAX
Destination airport name Los Angeles International Airport
City Los Angeles, CA
Country the United States
Latitude 33.9
Longitude -118.4


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.