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$89+ Cheap flights from Sidney, MT to Billings (SDY - BIL)

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 9/19. Fares are subject to change and may not be available on all flights or dates of travel.
SDY — BIL
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheap flight deals from Sidney to Billings

Discover tips and strategies to find the most affordable flight options for your journey from Sidney (SDY) to Billings (BIL). 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 September 17, 2025.

Round-trip from

$100
(Cape Air)
From Sidney Richland Municipal to Billings Logan Intl
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Find flight deals from Sidney to Billings

Cheapest flights from Sidney to Billings
Explore the most affordable flight options available from Sidney to Billings. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2025.

This Mytrip deal was found by Cheapflights users on 9/15. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/192:42 pmSDY - BIL
Nonstop1h 55mCape Air
Sat 9/2012:35 pmBIL - SDY
Nonstop1h 42mCape Air
Deal found 9/15$89
This Cape Air deal was found by Cheapflights users on 9/16. 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 Cape Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/112:52 pmSDY - BIL
Nonstop1h 55mCape Air
Sun 10/57:25 amBIL - SDY
Nonstop1h 42mCape Air
Deal found 9/16$100

Cheapflights Fare Finder

 
Customize your flight search to find flights from Sidney to Billings 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 September 17, 2025.
Use the filters below to find and compare flights from Sidney to Billings that are best for you.

Fly from

Sidney

Fly to

Billings

Route

Depart

Return

Price

SidneyBillings

SDY - BIL

SDYBIL

Sidney Richland Municipal

Thu 10/2

2:42 pm-4:37 pm

Nonstop1h 55m

Billings Logan Intl

Mon 10/6

10:45 am-12:27 pm

Nonstop1h 42m

$100

SidneyBillings

SDY - BIL

SDYBIL

Sidney Richland Municipal

Wed 10/1

12:52 pm-2:47 pm

Nonstop1h 55m

Billings Logan Intl

Sun 10/5

7:25 am-9:07 am

Nonstop1h 42m

$100

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/17

Best time to book a flight from Sidney to Billings

Have a flexible travel schedule? Discover the best time to fly to Billings from Sidney 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.

Cheapflights Insights

Everything you need to know about your flight from Sidney to Billings

What is the cheapest time of day to fly from SDY to BIL?

Find hourly flight availability from Sidney to Billings. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 17, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Sidney, Montana to Billings as you normally would.

Related info for your journey

Find useful and relevant information for your journey from Sidney to Billings. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from Sidney to Billings?

    If you book a flight from Sidney to Billings, you will be flying from Richland Municipal to Billings Logan Intl. Flights to Billings Logan Intl (BIL) from Sidney Richland Municipal (SDY) take 1h 55m for a nonstop flight. There are 5 flights from Richland Municipal to Billings per day from 1 airline.

  • How popular is this Sidney, Montana to Billings flight route?

    Within the past month, 3 users have taken a look at flights from Sidney Richland Municipal to Billings Logan Intl.

  • How long is the flight from Sidney, Montana to Billings?

    A quick flight from Sidney, Montana to Billings can take about 1h 55m. Cape Air provides one of the quickest options available for as low as $100. Airlines will cover a distance of 244 mi. Most flights are nonstop.

  • What is the cheapest airline to fly from Sidney, Montana to Billings round-trip?

    Flying on Cape Air is currently your cheapest option to Billings, with prices starting at $76.

  • Can I find deals for flights from Sidney to Billings that include hotel bookings?

    Yes. In addition to deals on Sidney to Billings flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Sidney to Billings?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Sidney to Billings.

  • Can I find deals for business class flights from Sidney to Billings?

    Yes. Cheapflights offers flight deals from Sidney to Billings by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Sidney, Montana to Billings?

    Currently, January is the cheapest month in which you can book a flight from Sidney, Montana to Billings (average of $395). Flying from Sidney, Montana to Billings in June is currently the most expensive (average of $509). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Top airline flying from Sidney to Billings

Discover the top airline that operate flights from Sidney to Billings. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
Cape AirCheapest$76Average$106FlexibilityNo cancel feeOn-time63%

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