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$88+ 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 2/18. Fares are subject to change and may not be available on all flights or dates of travel.
SDY — BIL
Mar 7 — Mar 141
Sat 3/7
Sat 3/14
1 adult, Economy
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Cheap 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 February 5, 2026.

This Mytrip deal was found by Cheapflights users on 2/3. 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.
Wed 2/181:04 pm
SDY
-
BIL
Nonstop1h 52m
Cape Air
Sun 2/2210:44 am
BIL
-
SDY
Nonstop1h 45m
Cape Air
Deal found 2/3$88
This Booking.com deal was found by Cheapflights users on 2/4. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/192:55 pm
SDY
-
BIL
Nonstop1h 53m
Cape Air
Mon 2/237:25 am
BIL
-
SDY
Nonstop1h 45m
Cape Air
Deal found 2/4$89
This Cape Air deal was found by Cheapflights users on 2/4. 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.
Fri 4/179:45 am
SDY
-
BIL
Nonstop1h 53m
Cape Air
Sat 4/1812:35 pm
BIL
-
SDY
Nonstop1h 45m
Cape Air
Deal found 2/4$100

Find 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 February 5, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$88
(Mytrip)
Provider with most accurate pricing for Sidney Richland Municipal-Billings Logan Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Sidney Richland Municipal-Billings Logan Intl flights.
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From Sidney Richland Municipal to Billings Logan Intl
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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 February 5, 2026.
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

Wed 4/8

2:55 pm-4:48 pm

Nonstop1h 53m

Billings Logan Intl

Tue 4/14

2:54 pm-4:39 pm

Nonstop1h 45m

$89

SidneyBillings

SDY - BIL

SDYBIL

Sidney Richland Municipal

Thu 2/19

2:55 pm-4:48 pm

Nonstop1h 53m

Billings Logan Intl

Mon 2/23

7:25 am-9:10 am

Nonstop1h 45m

$89

SidneyBillings

SDY - BIL

SDYBIL

Sidney Richland Municipal

Fri 4/10

9:45 am-11:38 am

Nonstop1h 53m

Billings Logan Intl

Sun 4/12

12:35 pm-2:20 pm

Nonstop1h 45m

$100

SidneyBillings

SDY - BIL

SDYBIL

Sidney Richland Municipal

Thu 4/9

1:04 pm-2:56 pm

Nonstop1h 52m

Billings Logan Intl

Sun 4/12

2:54 pm-4:39 pm

Nonstop1h 45m

$100

SidneyBillings

SDY - BIL

SDYBIL

Sidney Richland Municipal

Fri 4/17

5:10 pm-7:05 pm

Nonstop1h 55m

Billings Logan Intl

Sat 4/18

10:44 am-12:29 pm

Nonstop1h 45m

$100

SidneyBillings

SDY - BIL

SDYBIL

Sidney Richland Municipal

Fri 4/10

9:45 am-11:38 am

Nonstop1h 53m

Billings Logan Intl

Mon 4/13

12:35 pm-2:20 pm

Nonstop1h 45m

$100

SidneyBillings

SDY - BIL

SDYBIL

Sidney Richland Municipal

Tue 2/17

1:04 pm-2:56 pm

Nonstop1h 52m

Billings Logan Intl

Sat 2/21

10:44 am-12:29 pm

Nonstop1h 45m

$100

SidneyBillings

SDY - BIL

SDYBIL

Sidney Richland Municipal

Thu 4/9

9:45 am-11:38 am

Nonstop1h 53m

Billings Logan Intl

Mon 4/13

10:44 am-12:29 pm

Nonstop1h 45m

$100

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/3

  • Most accurate provider: When it comes to deals on Sidney, Montana-Billings flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Sidney, Montana-Billings flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Sidney, Montana-Billings flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Sidney, Montana-Billings flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Sidney, Montana-Billings flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 February 5, 2026.

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.

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

    A quick flight from Sidney, Montana to Billings can take about 1h 53m. Cape Air provides one of the quickest options available for as low as $89. Airlines will cover a distance of 244 mi. Most flights are nonstop.

  • 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.

See more FAQs

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