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Flights to Sidney Richland Municipal

$457 Cheap flights to Sidney, Montana

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight to Sidney, Montana departing on 1/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from the United States to Sidney, Montana

Cheap round-trip flights

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Multiple Airlines Logo
7:00 am - 9:07 amLAX  Los Angeles-SDY Sidney Richland Municipal
25h 07m2 stops Portland Billings Logan Intl
Multiple Airlines Logo
5:10 pm - 12:42 pmSDY  Sidney Richland Municipal-LAX Los Angeles
20h 32m2 stops Billings Logan Intl Seattle/Tacoma Intl
$457Multiple Airlines
Tue, Jan 5 - Sun, Jan 17
Multiple Airlines Logo
4:50 pm - 4:32 pmLAX  Los Angeles-SDY Sidney Richland Municipal
22h 42m2 stops Seattle/Tacoma Intl Billings Logan Intl
Multiple Airlines Logo
9:25 am - 8:45 pmSDY  Sidney Richland Municipal-LAX Los Angeles
12h 20m2 stops Billings Logan Intl Portland
$481Multiple Airlines
Wed, Sep 30 - Wed, Oct 7
Multiple Airlines Logo
7:03 am - 8:58 amLAX  Los Angeles-SDY Sidney Richland Municipal
24h 55m2 stops Portland Billings Logan Intl
Multiple Airlines Logo
7:35 am - 8:45 pmSDY  Sidney Richland Municipal-LAX Los Angeles
14h 10m2 stops Billings Logan Intl Portland
$528Multiple Airlines
Tue, Sep 29 - Tue, Oct 6
Multiple Airlines Logo
4:50 pm - 2:16 pmLAX  Los Angeles-SDY Sidney Richland Municipal
20h 26m2 stops Seattle/Tacoma Intl Billings Logan Intl
Multiple Airlines Logo
5:10 pm - 1:05 pmSDY  Sidney Richland Municipal-LAX Los Angeles
20h 55m2 stops Billings Logan Intl Seattle/Tacoma Intl
$532Multiple Airlines
Mon, Sep 28 - Mon, Oct 5
Multiple Airlines Logo
8:25 am - 12:26 pmBOS  Boston Logan Intl-SDY Sidney Richland Municipal
30h 01m3 stops Los Angeles Denver Intl Billings Logan Intl
Multiple Airlines Logo
5:10 pm - 11:54 pmSDY  Sidney Richland Municipal-BOS Boston Logan Intl
28h 44m2 stops Billings Logan Intl Denver Intl
$551Multiple Airlines
Sat, Sep 5 - Thu, Sep 10
Multiple Airlines Logo
8:45 am - 7:48 pmLAX  Los Angeles-SDY Sidney Richland Municipal
10h 03m2 stops Denver Intl Billings Logan Intl
Multiple Airlines Logo
2:54 pm - 11:31 pmSDY  Sidney Richland Municipal-LAX Los Angeles
9h 37m2 stops Billings Logan Intl Denver Intl
$553Multiple Airlines
Tue, Sep 8 - Wed, Sep 23
Multiple Airlines Logo
5:00 am - 7:48 pmLAX  Los Angeles-SDY Sidney Richland Municipal
13h 48m2 stops Denver Intl Billings Logan Intl
Multiple Airlines Logo
2:54 pm - 1:17 pmSDY  Sidney Richland Municipal-LAX Los Angeles
23h 23m2 stops Billings Logan Intl Denver Intl
$558Multiple Airlines
Sun, Sep 13 - Sun, Sep 20
Multiple Airlines Logo
3:14 pm - 9:07 amONT  Ontario-SDY Sidney Richland Municipal
16h 53m2 stops Seattle/Tacoma Intl Billings Logan Intl
Multiple Airlines Logo
5:10 pm - 8:24 pmSDY  Sidney Richland Municipal-ONT Ontario
28h 14m2 stops Billings Logan Intl Portland
$571Multiple Airlines
Tue, Sep 8 - Wed, Sep 23
Multiple Airlines Logo
8:25 am - 12:26 pmBOS  Boston Logan Intl-SDY Sidney Richland Municipal
30h 01m3 stops Los Angeles Denver Intl Billings Logan Intl
Multiple Airlines Logo
5:10 pm - 11:54 pmSDY  Sidney Richland Municipal-BOS Boston Logan Intl
28h 44m2 stops Billings Logan Intl Denver Intl
$586Multiple Airlines
Sat, Sep 5 - Thu, Sep 10
Multiple Airlines Logo
3:10 pm - 4:36 pmBOS  Boston Logan Intl-SDY Sidney Richland Municipal
27h 26m2 stops Denver Intl Billings Logan Intl
Multiple Airlines Logo
5:10 pm - 11:54 pmSDY  Sidney Richland Municipal-BOS Boston Logan Intl
28h 44m2 stops Billings Logan Intl Denver Intl
$626Multiple Airlines
Sat, Sep 5 - Thu, Sep 10

momondo Fare Finder

 
Locate flights to Sidney Richland Municipal that fit your budget, with regularly updated fares and availability. In the last 7 days, momondo users made a total of 832,500 searches and data was last updated on August 17, 2026.
Use the filters below to find and compare flights to Sidney, Montana that are best for you.

Fly from

Route

Depart

Return

Price

Cheapest round-trip

Los AngelesSidney

LAX Los Angeles - SDY Sidney Richland Municipal

LAXSDY

Los Angeles

Tue 1/5

7:00 am-9:07 am

2 stops25h 07m

Sidney Richland Municipal

Sun 1/17

5:10 pm-12:42 pm

2 stops20h 32m

$457

Los AngelesSidney

LAX Los Angeles - SDY Sidney Richland Municipal

LAXSDY

Los Angeles

Wed 9/30

4:50 pm-4:32 pm

2 stops22h 42m

Sidney Richland Municipal

Wed 10/7

9:25 am-8:45 pm

2 stops12h 20m

$481

Los AngelesSidney

LAX Los Angeles - SDY Sidney Richland Municipal

LAXSDY

Los Angeles

Tue 9/29

7:03 am-8:58 am

2 stops24h 55m

Sidney Richland Municipal

Tue 10/6

7:35 am-8:45 pm

2 stops14h 10m

$528

Los AngelesSidney

LAX Los Angeles - SDY Sidney Richland Municipal

LAXSDY

Los Angeles

Mon 9/28

4:50 pm-2:16 pm

2 stops20h 26m

Sidney Richland Municipal

Mon 10/5

5:10 pm-1:05 pm

2 stops20h 55m

$532

BostonSidney

BOS Boston Logan Intl - SDY Sidney Richland Municipal

BOSSDY

Boston Logan Intl

Sat 9/5

8:25 am-12:26 pm

3 stops30h 01m

Sidney Richland Municipal

Thu 9/10

5:10 pm-11:54 pm

2 stops28h 44m

$551
Quickest round-trip

Los AngelesSidney

LAX Los Angeles - SDY Sidney Richland Municipal

LAXSDY

Los Angeles

Tue 9/8

8:45 am-7:48 pm

2 stops10h 03m

Sidney Richland Municipal

Wed 9/23

2:54 pm-11:31 pm

2 stops9h 37m

$553

Los AngelesSidney

LAX Los Angeles - SDY Sidney Richland Municipal

LAXSDY

Los Angeles

Sun 9/13

5:00 am-7:48 pm

2 stops13h 48m

Sidney Richland Municipal

Sun 9/20

2:54 pm-1:17 pm

2 stops23h 23m

$558

OntarioSidney

ONT Ontario - SDY Sidney Richland Municipal

ONTSDY

Ontario

Tue 9/8

3:14 pm-9:07 am

2 stops16h 53m

Sidney Richland Municipal

Wed 9/23

5:10 pm-8:24 pm

2 stops28h 14m

$571

BostonSidney

BOS Boston Logan Intl - SDY Sidney Richland Municipal

BOSSDY

Boston Logan Intl

Sat 9/5

8:25 am-12:26 pm

3 stops30h 01m

Sidney Richland Municipal

Thu 9/10

5:10 pm-11:54 pm

2 stops28h 44m

$586

BostonSidney

BOS Boston Logan Intl - SDY Sidney Richland Municipal

BOSSDY

Boston Logan Intl

Sat 9/5

3:10 pm-4:36 pm

2 stops27h 26m

Sidney Richland Municipal

Thu 9/10

5:10 pm-11:54 pm

2 stops28h 44m

$626

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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Sidney, Montana flights insights and trends

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

On average, it takes 5h 40m 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 Basin Intl (the most popular airport in Sidney, Montana). If you’re flying out of San Francisco and into Williston Basin Intl, then the flight time is around 6h 02m.

Cheapest flights to Sidney Richland Municipal

Find the cheapest flights to Sidney Richland Municipal from your nearest city or airport

Cheap Sidney, Montana flight deals and tips

Summary info about Sidney, Montana flight prices, duration and airlines

Best Round-Trip Price

$457

Fastest flight time

16h 53m
The best round-trip flight price to Sidney from United States in the last 5 days is $457 (Los Angeles to Sidney Richland Municipal).
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The fastest flight to Sidney from United States takes 16h 53m (Ontario to Sidney Richland Municipal).
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Frequently asked questions about flying to Sidney, Montana

Is there an alternative airport near Sidney, Montana?

Sidney Richland Municipal Airport, Glendive Mont Dawson Airport, Wolf Point Airport or Dickinson Airport can be an alternative airport used for travel to Sidney, Montana.

Is there a cheaper alternative to flying into Sidney, Montana?

Sidney Richland Municipal Airport has an average price of $40 per person and is typically the cheapest airport to fly into when visiting Sidney, Montana. This average price does vary based on departure city. Try momondo’s Airport-to-Airport Pricing Tool to find the cheapest flight.

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

Prices for flights to Sidney Richland Municipal Airport refresh daily.

How old do you have to be to fly 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 to Sidney Richland Municipal Airport.

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

The necessary travel and health documents for your Sidney Richland Municipal Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Why use momondo?

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

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

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

Yes. All flights to Sidney on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights to Sidney?

Once all potential Sidney flight options are in front of you momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Yes momondo offers price alerts on flights to Sidney. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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