$488+ Cheap flights from California to Sidney, MT (SDY)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/10. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — SDY
Jan 26 — Feb 21
1 adult, Economy
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1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from California to Sidney
Discover tips and strategies to find the most affordable flight options for your journey from California (USCA) to Sidney (SDY). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 21, 2025.
Round-trip from | $516 (United) |
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Find flight deals from California to Sidney
Cheapest flights from California to SidneyExplore the most affordable flight options available from California to Sidney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 21, 2025.
Explore the most affordable flight options available from California to Sidney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 21, 2025.
This United deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/102:35 pmLAX - SDY
2 stops20h 15mMultiple Airlines
Tue 7/159:45 amSDY - LAX
2 stops13h 49mMultiple Airlines
Deal found 1/21![Multiple Airlines logo]()
$488
This United deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/31:45 pmONT - SDY
2 stops23h 09mMultiple Airlines
Mon 2/105:13 pmSDY - ONT
2 stops28h 38mMultiple Airlines
Deal found 1/20![Multiple Airlines logo]()
$516
Find flights from California to Sidney within your budget
Customize your flight search to find flights from California to Sidney that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 21, 2025.
Fly from
Any airport
Fly to
Any airport
Route
Depart
Return
Price
Los AngelesSidney
LAX - SDY
LAXSDY
Los Angeles
Tue 6/10
2:35 pm-11:50 am
2 stops20h 15m
Sidney Richland Municipal
Tue 7/15
9:45 am-10:34 pm
2 stops13h 49m
$488
OntarioSidney
ONT - SDY
ONTSDY
Ontario
Mon 2/3
1:45 pm-1:54 pm
2 stops23h 09m
Sidney Richland Municipal
Mon 2/10
5:13 pm-8:51 pm
2 stops28h 38m
$516
Best time to book a flight from California to Sidney
Have a flexible travel schedule? Discover the best time to fly to Sidney from California with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Travel insights for flights from California to Sidney
Get recent, data-driven insights about flights from California to Sidney including ideal travel times, pricing trends, and more.
Rainfall in Sidney by month
Plan your trip to Sidney by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Sidney, Montana ranges from 0.0 - 2.8 inches per month. June is typically the wettest month, when rainfall can reach 2.8 in. January is typically the driest time to visit Sidney, Montana when rainfall is around 0.0 in.
Temperature in Sidney by month
Plan your trip to Sidney by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Sidney, Montana, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 10.4 F).