When did momondo last update prices for flights from United States to Sidney Richland Municipal Airport?

Prices for flights from United States to Sidney Richland Municipal Airport are refreshed on a daily basis.

How many operators does momondo search for flights from United States to Sidney Richland Municipal Airport?

As of October 2026, there is 1 operator available to choose from for flights from United States to Sidney Richland Municipal Airport.

How old do you have to be to fly from United States to Sidney Richland Municipal Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from United States to Sidney Richland Municipal Airport.

What documentation or ID do you need to fly to Sidney Richland Municipal Airport?

The travel and health documents you'll need for your trip to Sidney Richland Municipal Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Sidney Richland Municipal Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$84 Cheap Flights from the United States to Sidney, Montana in 2026/27

Find the cheapest flights from the United States to Sidney

Round-trip

One-way

Last minute

Direct

Recent round-trip flight deals from the United States to Sidney

Enter your travel dates to find the best prices.

7:20 am - 8:58 amBIL Billings Logan Intl-SDY Sidney Richland Municipal

1h 38mnonstop

5:10 pm - 7:00 pmSDY Sidney Richland Municipal-BIL Billings Logan Intl

1h 50mnonstop

$84Cape Air

Tue, Nov 24 - Wed, Nov 25

12:38 pm - 2:16 pmBIL Billings Logan Intl-SDY Sidney Richland Municipal

1h 38mnonstop

2:54 pm - 4:44 pmSDY Sidney Richland Municipal-BIL Billings Logan Intl

1h 50mnonstop

$84Cape Air

Sun, Nov 1 - Tue, Nov 3

12:38 pm - 2:16 pmBIL Billings Logan Intl-SDY Sidney Richland Municipal

1h 38mnonstop

7:35 am - 9:25 amSDY Sidney Richland Municipal-BIL Billings Logan Intl

1h 50mnonstop

$100Cape Air

Thu, Oct 22 - Mon, Oct 26

2:54 pm - 4:32 pmBIL Billings Logan Intl-SDY Sidney Richland Municipal

1h 38mnonstop

9:25 am - 11:15 amSDY Sidney Richland Municipal-BIL Billings Logan Intl

1h 50mnonstop

$100Cape Air

Sat, Oct 24 - Wed, Oct 28

2:54 pm - 4:32 pmBIL Billings Logan Intl-SDY Sidney Richland Municipal

1h 38mnonstop

2:54 pm - 4:44 pmSDY Sidney Richland Municipal-BIL Billings Logan Intl

1h 50mnonstop

$100Cape Air

Fri, Oct 23 - Tue, Oct 27

12:38 pm - 2:16 pmBIL Billings Logan Intl-SDY Sidney Richland Municipal

1h 38mnonstop

2:54 pm - 4:44 pmSDY Sidney Richland Municipal-BIL Billings Logan Intl

1h 50mnonstop

$100Cape Air

Wed, Oct 21 - Sun, Oct 25

12:38 pm - 2:16 pmBIL Billings Logan Intl-SDY Sidney Richland Municipal

1h 38mnonstop

2:54 pm - 4:44 pmSDY Sidney Richland Municipal-BIL Billings Logan Intl

1h 50mnonstop

$100Cape Air

Mon, Nov 23 - Mon, Nov 30

6:10 am - 9:07 amLAX Los Angeles-SDY Sidney Richland Municipal

25h 57m2 stops Portland Billings Logan Intl

2:55 pm - 8:00 pmSDY Sidney Richland Municipal-LAX Los Angeles

30h 05m2 stops Billings Logan Intl Portland

$428Multiple Airlines

Wed, Jan 20 - Sun, Jan 31

3:51 pm - 12:22 pmLAX Los Angeles-SDY Sidney Richland Municipal

19h 31m2 stops Seattle/Tacoma Intl Billings Logan Intl

7:35 am - 5:40 pmSDY Sidney Richland Municipal-LAX Los Angeles

11h 05m2 stops Billings Logan Intl Seattle/Tacoma Intl

$490Multiple Airlines

Tue, Oct 27 - Mon, Nov 9

12:03 pm - 2:16 pmPDX Portland-SDY Sidney Richland Municipal

25h 13m1 stop Billings Logan Intl

2:54 pm - 4:47 pmSDY Sidney Richland Municipal-PDX Portland

26h 53m1 stop Billings Logan Intl

$499Multiple Airlines

Sun, Nov 1 - Mon, Nov 30

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Cape Air flights from United States to Sidney, Montana

Our best Cape Air deals on United States to Sidney, Montana flight tickets

Cape Air

Nov 1

BIL12:38 pmBillings Logan Intl

1h 38m

SDY2:16 pmSidney Richland Municipal

Nov 3

SDY2:54 pmSidney Richland Municipal

1h 50m

BIL4:44 pmBillings Logan Intl

$84

Cape Air

Oct 16

BIL12:38 pmBillings Logan Intl

1h 38m

SDY2:16 pmSidney Richland Municipal

Oct 18

SDY7:35 amSidney Richland Municipal

1h 50m

BIL9:25 amBillings Logan Intl

$94

Cape Air

Oct 16

BIL12:38 pmBillings Logan Intl

1h 38m

SDY2:16 pmSidney Richland Municipal

Oct 18

SDY7:35 amSidney Richland Municipal

1h 50m

BIL9:25 amBillings Logan Intl

$96

momondo Fare Finder

Use the filters below to find and compare flights from the United States to Sidney, Montana that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

BillingsSidney

BIL Billings Logan Intl - SDY Sidney Richland Municipal

BILSDY

Billings Logan Intl

Tue 11/24

7:20 am-8:58 am

Nonstop1h 38m

Sidney Richland Municipal

Wed 11/25

5:10 pm-7:00 pm

Nonstop1h 50m

$84

BillingsSidney

BIL Billings Logan Intl - SDY Sidney Richland Municipal

BILSDY

Billings Logan Intl

Sun 11/1

12:38 pm-2:16 pm

Nonstop1h 38m

Sidney Richland Municipal

Tue 11/3

2:54 pm-4:44 pm

Nonstop1h 50m

$84

BillingsSidney

BIL Billings Logan Intl - SDY Sidney Richland Municipal

BILSDY

Billings Logan Intl

Thu 10/22

12:38 pm-2:16 pm

Nonstop1h 38m

Sidney Richland Municipal

Mon 10/26

7:35 am-9:25 am

Nonstop1h 50m

$100

BillingsSidney

BIL Billings Logan Intl - SDY Sidney Richland Municipal

BILSDY

Billings Logan Intl

Sat 10/24

2:54 pm-4:32 pm

Nonstop1h 38m

Sidney Richland Municipal

Wed 10/28

9:25 am-11:15 am

Nonstop1h 50m

$100

BillingsSidney

BIL Billings Logan Intl - SDY Sidney Richland Municipal

BILSDY

Billings Logan Intl

Fri 10/23

2:54 pm-4:32 pm

Nonstop1h 38m

Sidney Richland Municipal

Tue 10/27

2:54 pm-4:44 pm

Nonstop1h 50m

$100

BillingsSidney

BIL Billings Logan Intl - SDY Sidney Richland Municipal

BILSDY

Billings Logan Intl

Wed 10/21

12:38 pm-2:16 pm

Nonstop1h 38m

Sidney Richland Municipal

Sun 10/25

2:54 pm-4:44 pm

Nonstop1h 50m

$100

BillingsSidney

BIL Billings Logan Intl - SDY Sidney Richland Municipal

BILSDY

Billings Logan Intl

Mon 11/23

12:38 pm-2:16 pm

Nonstop1h 38m

Sidney Richland Municipal

Mon 11/30

2:54 pm-4:44 pm

Nonstop1h 50m

$100

Los AngelesSidney

LAX Los Angeles - SDY Sidney Richland Municipal

LAXSDY

Los Angeles

Wed 1/20

6:10 am-9:07 am

2 stops25h 57m

Sidney Richland Municipal

Sun 1/31

2:55 pm-8:00 pm

2 stops30h 05m

$428

Los AngelesSidney

LAX Los Angeles - SDY Sidney Richland Municipal

LAXSDY

Los Angeles

Tue 10/27

3:51 pm-12:22 pm

2 stops19h 31m

Sidney Richland Municipal

Mon 11/9

7:35 am-5:40 pm

2 stops11h 05m

$490

PortlandSidney

PDX Portland - SDY Sidney Richland Municipal

PDXSDY

Portland

Sun 11/1

12:03 pm-2:16 pm

1 stop25h 13m

Sidney Richland Municipal

Mon 11/30

2:54 pm-4:47 pm

1 stop26h 53m

$499

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 14 resultsSorted by cheapest first

How to get the cheapest flight ticket from United States to Sidney, Montana

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

How many flights depart from United States to Sidney, Montana on average per week?

35 flights are operational weekly from United States to Sidney, Montana as of October 2026. The most popular departure day for this route is Mon, with 14% of flights per week taking off on this day.

How long does it take to fly to Sidney, Montana?

On average, it takes 5h 47m to fly from United States to Sidney, Montana if you fly out of Los Angeles (the most popular airport in United States) and into Williston (the most popular airport in Sidney, Montana). If you’re flying out of San Francisco and into Williston, then the flight time is around 5h 47m.

Cheap United States to Sidney, Montana flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from United States to Sidney, Montana

Best Price Found	$252
Fastest flight time	4h 22m
Direct flights	Mon and Thu
Airports in Sidney, Montana	1 airport

The best one-way flight to Sidney, Montana from United States in the past 72 hours is $252. The best round-trip flight deal from United States to Sidney, Montana found on momondo in the last 72 hours is $84.

The fastest flight from United States to Sidney, Montana takes 4h 22m

Direct flights go from United States to Sidney, Montana on Monday and Thursday. There are no airlines offering direct flights.

There is 1 airport in Sidney, Montana. From United States there are direct flights to Sidney Richland Municipal (SDY).

Search flight deals

Frequently asked questions about flying from the United States to Sidney, Montana

When did momondo last update prices for flights from United States to Sidney Richland Municipal Airport?
Prices for flights from United States to Sidney Richland Municipal Airport are refreshed on a daily basis.
How many operators does momondo search for flights from United States to Sidney Richland Municipal Airport?
As of October 2026, there is 1 operator available to choose from for flights from United States to Sidney Richland Municipal Airport.
How old do you have to be to fly from United States to Sidney Richland Municipal Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from United States to Sidney Richland Municipal Airport.
What documentation or ID do you need to fly to Sidney Richland Municipal Airport?
The travel and health documents you'll need for your trip to Sidney Richland Municipal Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Sidney Richland Municipal Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from United States to Sidney, Montana?
momondo data reveals that the most frequently booked plane model on the route from United States to Sidney, Montana is Tecnam P2012 Traveler, representing 100.00% of all bookings.

Why use momondo?

Why should I use momondo to find a flight deal from United States to Sidney?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from United States to Sidney. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from United States to Sidney with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for United States to Sidney flights to just show those with flexible booking policies.

How can momondo help me find flights from United States to Sidney?

momondo provides multiple filters to help you find the best flight to Sidney from United States. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from United States to Sidney right now. Can momondo alert me if prices change?

Price alerts on flights to Sidney from United States are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.