What is the cheapest airline that flies from Rock Springs Sweetwater County to United States?

United Airlines is the most popular carrier operating from Rock Springs Sweetwater County to United States

How many flights depart from Rock Springs to United States on average per week?

The number of flights available between Rock Springs and United States is 21 per week as of May 2026. The most frequent departure day is Mon, with 14% of weekly flights leaving on this day.

When did momondo last update prices for flights from Rock Springs Sweetwater County Airport to United States?

Prices for flights from Rock Springs Sweetwater County Airport to United States are refreshed on a daily basis.

How many operators does momondo search for flights from Rock Springs Sweetwater County Airport to United States?

There is 1 operator available for flights from Rock Springs Sweetwater County Airport to United States as of May 2026.

How old do you have to be to fly from Rock Springs Sweetwater County Airport to United States?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Rock Springs Sweetwater County Airport to United States.

What documentation or ID do you need to fly to United States?

The travel and health documents you'll need for your trip to United States 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 United States. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$198 Cheap Flights from Rock Springs to the United States in 2026

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Rock Springs to the United States

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

1:46 pm - 3:10 pm

RKS

DEN

1h 24mnonstop

12:15 pm - 1:31 pm

DEN

RKS

1h 16mnonstop

$241United Airlines

Sat, May 23 - Tue, May 26

5:25 am - 6:53 am

RKS

DEN

1h 28mnonstop

8:46 pm - 10:01 pm

DEN

RKS

1h 15mnonstop

$261United Airlines

Sun, Aug 16 - Mon, Aug 24

5:05 am - 6:18 am

RKS

DEN

1h 13mnonstop

9:05 pm - 10:15 pm

DEN

RKS

1h 10mnonstop

$263United Airlines

Thu, May 21 - Mon, May 25

5:05 am - 6:18 am

RKS

DEN

1h 13mnonstop

12:15 pm - 1:31 pm

DEN

RKS

1h 16mnonstop

$275United Airlines

Sun, Jun 14 - Sun, Jun 21

2:16 pm - 3:40 pm

RKS

DEN

1h 24mnonstop

9:13 pm - 10:23 pm

DEN

RKS

1h 10mnonstop

$280United Airlines

Fri, Jun 5 - Mon, Jun 8

5:25 am - 6:53 am

RKS

DEN

1h 28mnonstop

8:46 pm - 10:01 pm

DEN

RKS

1h 15mnonstop

$291United Airlines

Mon, Aug 17 - Tue, Aug 25

2:16 pm - 3:40 pm

RKS

DEN

1h 24mnonstop

9:05 pm - 10:15 pm

DEN

RKS

1h 10mnonstop

$292United Airlines

Fri, May 22 - Mon, May 25

2:16 pm - 6:23 pm

RKS

LAS

5h 07m

1 stop

5:45 am - 1:31 pm

LAS

RKS

6h 46m

1 stop

$298United Airlines

Mon, Jun 1 - Mon, Jun 8

2:16 pm - 12:21 am

RKS

LAS

11h 05m

2 stops

5:45 am - 1:11 pm

LAS

RKS

6h 26m

1 stop

$304United Airlines

Thu, May 28 - Sat, May 30

2:05 pm - 3:33 pm

RKS

DEN

1h 28mnonstop

12:15 pm - 1:30 pm

DEN

RKS

1h 15mnonstop

$304United Airlines

Fri, Aug 21 - Sun, Aug 23

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United Airlines flights from Rock Springs to United States

Our best United Airlines deals on Rock Springs to United States flight tickets

United Airlines

May 23

RKS1:46 pmRock Springs Sweetwater County

1h 24m

DEN3:10 pmDenver Intl

May 26

DEN12:15 pmDenver Intl

1h 16m

RKS1:31 pmRock Springs Sweetwater County

$241

United Airlines

Aug 16

RKS5:25 amRock Springs Sweetwater County

1h 28m

DEN6:53 amDenver Intl

Aug 24

DEN8:46 pmDenver Intl

1h 15m

RKS10:01 pmRock Springs Sweetwater County

$261

United Airlines

May 21

RKS5:05 amRock Springs Sweetwater County

1h 13m

DEN6:18 amDenver Intl

May 25

DEN9:05 pmDenver Intl

1h 10m

RKS10:15 pmRock Springs Sweetwater County

$263

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Rock SpringsDenver

RKS - DEN

RKSDEN

Rock Springs Sweetwater County

Sat 5/23

1:46 pm-3:10 pm

Nonstop1h 24m

Denver Intl

Tue 5/26

12:15 pm-1:31 pm

Nonstop1h 16m

$241

Rock SpringsDenver

RKS - DEN

RKSDEN

Rock Springs Sweetwater County

Sun 8/16

5:25 am-6:53 am

Nonstop1h 28m

Denver Intl

Mon 8/24

8:46 pm-10:01 pm

Nonstop1h 15m

$261

Quickest round-trip

Rock SpringsDenver

RKS - DEN

RKSDEN

Rock Springs Sweetwater County

Thu 5/21

5:05 am-6:18 am

Nonstop1h 13m

Denver Intl

Mon 5/25

9:05 pm-10:15 pm

Nonstop1h 10m

$263

Rock SpringsDenver

RKS - DEN

RKSDEN

Rock Springs Sweetwater County

Sun 6/14

5:05 am-6:18 am

Nonstop1h 13m

Denver Intl

Sun 6/21

12:15 pm-1:31 pm

Nonstop1h 16m

$275

Rock SpringsDenver

RKS - DEN

RKSDEN

Rock Springs Sweetwater County

Fri 6/5

2:16 pm-3:40 pm

Nonstop1h 24m

Denver Intl

Mon 6/8

9:13 pm-10:23 pm

Nonstop1h 10m

$280

Rock SpringsDenver

RKS - DEN

RKSDEN

Rock Springs Sweetwater County

Mon 8/17

5:25 am-6:53 am

Nonstop1h 28m

Denver Intl

Tue 8/25

8:46 pm-10:01 pm

Nonstop1h 15m

$291

Rock SpringsDenver

RKS - DEN

RKSDEN

Rock Springs Sweetwater County

Fri 5/22

2:16 pm-3:40 pm

Nonstop1h 24m

Denver Intl

Mon 5/25

9:05 pm-10:15 pm

Nonstop1h 10m

$292

Rock SpringsLas Vegas

RKS - LAS

RKSLAS

Rock Springs Sweetwater County

Mon 6/1

2:16 pm-6:23 pm

1 stop5h 07m

Las Vegas Harry Reid Intl

Mon 6/8

5:45 am-1:31 pm

1 stop6h 46m

$298

Rock SpringsLas Vegas

RKS - LAS

RKSLAS

Rock Springs Sweetwater County

Thu 5/28

2:16 pm-12:21 am

2 stops11h 05m

Las Vegas Harry Reid Intl

Sat 5/30

5:45 am-1:11 pm

1 stop6h 26m

$304

Rock SpringsDenver

RKS - DEN

RKSDEN

Rock Springs Sweetwater County

Fri 8/21

2:05 pm-3:33 pm

Nonstop1h 28m

Denver Intl

Sun 8/23

12:15 pm-1:30 pm

Nonstop1h 15m

$304

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Rock Springs to United States

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

Prices

Airlines

Other information

What is the cheapest month to fly to United States?

In general, August is the cheapest month to fly from Rock Springs to United States. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $185. If you aren’t able to travel during the month of August, then book flights to United States from Rock Springs during December instead. Flights to United States in December, while not as cheap as those in August, still average around $238.

Can stopping save me money on Rock Springs to United States flights?

No. A direct flight is the cheapest option for a flight between Rock Springs to United States.

Cheap Rock Springs to United States flight deals and tips

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

Best Price Found	$423
Fastest flight time	1h 13m
Direct flights	Every day
Airports in United States	4,297 airports

The best one-way flight to United States from Rock Springs in the past 72 hours is $423. The best round-trip flight deal from Rock Springs to United States found on momondo in the last 72 hours is $349.

The fastest flight from Rock Springs to United States takes 1h 13m

Direct flights go from Rock Springs to United States every day.

There are 4,297 airports in United States. From Rock Springs there are direct flights to Denver Intl (DEN).

Search flight deals

Frequently asked questions about flying from Rock Springs to the United States

When did momondo last update prices for flights from Rock Springs Sweetwater County Airport to United States?
Prices for flights from Rock Springs Sweetwater County Airport to United States are refreshed on a daily basis.
How many operators does momondo search for flights from Rock Springs Sweetwater County Airport to United States?
There is 1 operator available for flights from Rock Springs Sweetwater County Airport to United States as of May 2026.
How old do you have to be to fly from Rock Springs Sweetwater County Airport to United States?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Rock Springs Sweetwater County Airport to United States.
What documentation or ID do you need to fly to United States?
The travel and health documents you'll need for your trip to United States 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 United States. 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 Rock Springs to United States?
momondo data reveals that the most frequently booked plane model on the route from Rock Springs to United States is Canadair (Bombardier) Regional Jet, representing 100.00% of all bookings.

Best airlines flying from Rock Springs to United States

Compare and see reviews for airlines that fly from Rock Springs to United States with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $258	Free Cancellation	Rating 7.4 9,690 reviews		Search United Airlines flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Rock Springs to United States. momondo saves you time and could save you money on your trip.

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

All flight searches from Rock Springs to United States on momondo can be filtered to show those which offer flexible booking policies.

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

Once all potential Rock Springs to United States 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 from Rock Springs to United States right now. Can momondo alert me if prices change?

Price alerts on flights to United States from Rock Springs 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.