How long is the flight from Montana to Rock Springs?

United Airlines can get you from Montana to Rock Springs in just under 5h. Your travel time can differ by up to . The distance from Montana to Rock Springs is about 443 mi.

In terms of precipitation, rainfall in Rock Springs ranges from 0.5 - 1.2 inches per month. May is typically the wettest month, when rainfall can reach 1.2 in. January is typically the driest time to visit Rock Springs when rainfall is around 0.5 in.

If weather is an important factor for your trip to Rock Springs, 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 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 21.2 F).

What is the cheapest time of day to fly from MT to RKS?

When flying from Montana to Rock Springs, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

What airport do you fly into for flights to Rock Springs from Montana?

If you book a flight to Rock Springs from Montana, you will be flying to Sweetwater County, which is the city’s only airport. Rock Springs Sweetwater County (RKS) is located 7.1 mi from the center of Rock Springs.

Can I find deals for flights from Montana to Rock Springs that include hotel bookings?

Yes. In addition to deals on Montana to Rock Springs flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Montana to Rock Springs?

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

Can I find deals for business class flights from Montana to Rock Springs?

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

$338+ Flights from Montana to Rock Springs

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Cheap flight deals from Montana to Rock Springs

Cheapest flights from Montana to Rock Springs
Explore the most affordable flight options available from Montana to Rock Springs. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

Wed 2/115:15 pm

MSO

RKS

1 stop5h 00m

United Airlines

Sun 2/152:10 pm

RKS

MSO

1 stop7h 47m

United Airlines

Deal found 1/27

$338

Fri 11/62:29 pm

FCA

RKS

1 stop7h 32m

United Airlines

Tue 11/105:25 am

RKS

FCA

1 stop8h 08m

United Airlines

Deal found 1/28

$343

Sat 2/216:15 am

MSO

RKS

1 stop7h 18m

United Airlines

Tue 2/242:10 pm

RKS

MSO

1 stop7h 47m

United Airlines

Deal found 1/28

$379

Wed 2/116:00 am

FCA

RKS

1 stop16h 15m

United Airlines

Sun 2/152:10 pm

RKS

FCA

1 stop8h 02m

United Airlines

Deal found 1/27

$727

Best flights from Montana to Rock Springs
Discover carefully curated flight deals from Montana to Rock Springs that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated January 29, 2026.

Wed 2/115:15 pm

MSO

RKS

1 stop5h 00m

United Airlines

Sun 2/152:10 pm

RKS

MSO

1 stop7h 47m

United Airlines

Deal found 1/27

$338

Sat 2/216:15 am

MSO

RKS

1 stop7h 18m

United Airlines

Tue 2/245:15 am

RKS

MSO

1 stop8h 17m

United Airlines

Deal found 1/26

$379

Wed 2/116:00 am

FCA

RKS

1 stop16h 15m

United Airlines

Sun 2/152:10 pm

RKS

FCA

1 stop8h 02m

United Airlines

Deal found 1/27

$727

Last-minute flights from Montana to Rock Springs
Discover last-minute flight deals from Montana to Rock Springs. Data last updated January 29, 2026 and is based on user searches.

Wed 2/115:15 pm

MSO

RKS

1 stop5h 00m

United Airlines

Sun 2/152:10 pm

RKS

MSO

1 stop7h 47m

United Airlines

Deal found 1/27

$338

Wed 2/116:00 am

FCA

RKS

1 stop16h 15m

United Airlines

Sun 2/152:10 pm

RKS

FCA

1 stop8h 02m

United Airlines

Deal found 1/27

$727

Sat 2/216:15 am

MSO

RKS

1 stop7h 18m

United Airlines

Tue 2/242:10 pm

RKS

MSO

1 stop7h 47m

United Airlines

Deal found 1/28

$379

Find flight deals from Montana to Rock Springs

Round-trip from	$338 (United Airlines)

From Montana to Rock Springs Sweetwater County

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Montana to Rock Springs that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

MissoulaRock Springs

MSO - RKS

MSORKS

Missoula Johnson-Bell Field

Wed 2/11

5:15 pm-10:15 pm

1 stop5h 00m

Rock Springs Sweetwater County

Sun 2/15

2:10 pm-9:57 pm

1 stop7h 47m

$338

MissoulaRock Springs

MSO - RKS

MSORKS

Missoula Johnson-Bell Field

Sat 2/21

6:15 am-1:33 pm

1 stop7h 18m

Rock Springs Sweetwater County

Tue 2/24

5:15 am-1:32 pm

1 stop8h 17m

$379

KalispellRock Springs

FCA - RKS

FCARKS

Kalispell Glacier Park

Wed 2/11

6:00 am-10:15 pm

1 stop16h 15m

Rock Springs Sweetwater County

Sun 2/15

2:10 pm-10:12 pm

1 stop8h 02m

$727

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

Best time to book a flight from Montana to Rock Springs

Have a flexible travel schedule? Discover the best time to fly to Rock Springs from Montana 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 Montana to Rock Springs

No data available for this route at this time. Please check back soon.

Related info for your journey

What airport do you fly into for flights to Rock Springs from Montana?
If you book a flight to Rock Springs from Montana, you will be flying to Sweetwater County, which is the city’s only airport. Rock Springs Sweetwater County (RKS) is located 7.1 mi from the center of Rock Springs.
How long is the flight from Montana to Rock Springs?
United Airlines can get you from Montana to Rock Springs in just under 5h. Your travel time can differ by up to . The distance from Montana to Rock Springs is about 443 mi.
Can I find deals for flights from Montana to Rock Springs that include hotel bookings?
Yes. In addition to deals on Montana to Rock Springs flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Montana to Rock Springs?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Montana to Rock Springs.
Can I find deals for business class flights from Montana to Rock Springs?
Yes. Cheapflights offers flight deals from Montana to Rock Springs 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

Browse thousands of different options on Cheapflights for your next trip

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$338+ Cheap flights from Montana to Rock Springs (RKS)

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 2/11. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Montana to Rock Springs with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Montana to Rock Springs

Cheapest flights from Montana to Rock SpringsExplore the most affordable flight options available from Montana to Rock Springs. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

Explore the most affordable flight options available from Montana to Rock Springs. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

Find flight deals from Montana to Rock Springs

Keep the following information in mind while searching for Montana to Rock Springs flight deals. Data was last updated January 29, 2026.

Round-trip from

Cheapflights Fare Finder

Use the filters below to find and compare flights from Montana to Rock Springs that are best for you.

Best time to book a flight from Montana to Rock Springs

Have a flexible travel schedule? Discover the best time to fly to Rock Springs from Montana with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Montana to Rock Springs

Related info for your journey

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

What airport do you fly into for flights to Rock Springs from Montana?

How long is the flight from Montana to Rock Springs?

Can I find deals for flights from Montana to Rock Springs that include hotel bookings?

How can I find direct flights from Montana to Rock Springs?

Can I find deals for business class flights from Montana to Rock Springs?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Montana to Rock Springs

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Cheapest flights from Montana to Rock Springs
Explore the most affordable flight options available from Montana to Rock Springs. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.