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Cheap flights from the United States to Rock Springs from $198

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from the United States to Rock Springs departing on 10/24. 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
0 bags

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Find the cheapest flights from the United States to Rock Springs

Recent round-trip flight deals from the United States to Rock Springs

Enter your travel dates to find the best prices.
United Airlines Logo
4:02 pm - 9:59 pmPDX-RKS
4h 57m1 stop
United Airlines Logo
1:56 pm - 5:52 pmRKS-PDX
4h 56m1 stop
$238United Airlines
Find Deal
Sat, Nov 8 - Sat, Nov 15
United Airlines Logo
7:00 am - 1:21 pmPHX-RKS
6h 21m1 stop
United Airlines Logo
1:56 pm - 7:49 pmRKS-PHX
5h 53m1 stop
$238United Airlines
Find Deal
Tue, Nov 4 - Tue, Nov 11
United Airlines Logo
9:00 pm - 10:07 pmDEN-RKS
1h 07mnonstop
United Airlines Logo
1:56 pm - 3:20 pmRKS-DEN
1h 24mnonstop
$241United Airlines
Find Deal
Wed, Oct 22 - Sun, Oct 26
United Airlines Logo
4:02 pm - 9:59 pmPDX-RKS
4h 57m1 stop
United Airlines Logo
1:56 pm - 10:51 pmRKS-PDX
9h 55m2 stops
$244United Airlines
Find Deal
Sat, Nov 8 - Sat, Nov 15
United Airlines Logo
7:00 am - 1:21 pmPHX-RKS
6h 21m1 stop
United Airlines Logo
5:15 am - 1:19 pmRKS-PHX
8h 04m2 stops
$244United Airlines
Find Deal
Tue, Nov 4 - Tue, Nov 11
United Airlines Logo
8:33 am - 1:21 pmMEM-RKS
5h 48m1 stop
United Airlines Logo
1:56 pm - 10:15 pmRKS-MEM
7h 19m1 stop
$248United Airlines
Find Deal
Thu, Nov 20 - Sun, Nov 23
United Airlines Logo
4:35 pm - 10:07 pmPHX-RKS
4h 32m1 stop
United Airlines Logo
1:56 pm - 8:44 pmRKS-PHX
7h 48m2 stops
$254United Airlines
Find Deal
Wed, Oct 22 - Sun, Oct 26
United Airlines Logo
10:41 am - 10:07 pmPHX-RKS
10h 26m2 stops
United Airlines Logo
1:56 pm - 12:14 amRKS-PHX
11h 18m2 stops
$259United Airlines
Find Deal
Wed, Oct 22 - Sun, Oct 26
United Airlines Logo
12:15 pm - 1:30 pmDEN-RKS
1h 15mnonstop
United Airlines Logo
2:05 pm - 3:33 pmRKS-DEN
1h 28mnonstop
$261United Airlines
Find Deal
Sat, Feb 21 - Tue, Feb 24
United Airlines Logo
8:56 am - 1:23 pmMEM-RKS
5h 27m1 stop
United Airlines Logo
1:56 pm - 10:15 pmRKS-MEM
7h 19m1 stop
$278United Airlines
Find Deal
Wed, Oct 22 - Mon, Oct 27

United Airlines flights from United States to Rock Springs

Our best United Airlines deals on United States to Rock Springs flight tickets
United Airlines
Nov 4
PHX7:00 amPhoenix Sky Harbor Intl
6h 21m
1 stop
RKS1:21 pmRock Springs Sweetwater County
Nov 11
RKS1:56 pmRock Springs Sweetwater County
5h 53m
1 stop
PHX7:49 pmPhoenix Sky Harbor Intl
$238
Find similar
United Airlines
Oct 22
DEN9:00 pmDenver Intl
1h 07m
RKS10:07 pmRock Springs Sweetwater County
Oct 26
RKS1:56 pmRock Springs Sweetwater County
1h 24m
DEN3:20 pmDenver Intl
$241
Find similar
United Airlines
Nov 4
PHX7:00 amPhoenix Sky Harbor Intl
6h 21m
1 stop
RKS1:21 pmRock Springs Sweetwater County
Nov 11
RKS5:15 amRock Springs Sweetwater County
8h 04m
2 stops
PHX1:19 pmPhoenix Sky Harbor Intl
$244
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from United States to Rock Springs 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, momondo users made 832,500 searches. Data last updated October 9, 2025.
Use the filters below to find and compare flights from the United States to Rock Springs that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PortlandRock Springs

PDX - RKS

PDXRKS

Portland

Sat 11/8

4:02 pm-9:59 pm

1 stop4h 57m

Rock Springs Sweetwater County

Sat 11/15

1:56 pm-5:52 pm

1 stop4h 56m

$238

PhoenixRock Springs

PHX - RKS

PHXRKS

Phoenix Sky Harbor Intl

Tue 11/4

7:00 am-1:21 pm

1 stop6h 21m

Rock Springs Sweetwater County

Tue 11/11

1:56 pm-7:49 pm

1 stop5h 53m

$238

DenverRock Springs

DEN - RKS

DENRKS

Denver Intl

Wed 10/22

9:00 pm-10:07 pm

Nonstop1h 07m

Rock Springs Sweetwater County

Sun 10/26

1:56 pm-3:20 pm

Nonstop1h 24m

$241

PortlandRock Springs

PDX - RKS

PDXRKS

Portland

Sat 11/8

4:02 pm-9:59 pm

1 stop4h 57m

Rock Springs Sweetwater County

Sat 11/15

1:56 pm-10:51 pm

2 stops9h 55m

$244

PhoenixRock Springs

PHX - RKS

PHXRKS

Phoenix Sky Harbor Intl

Tue 11/4

7:00 am-1:21 pm

1 stop6h 21m

Rock Springs Sweetwater County

Tue 11/11

5:15 am-1:19 pm

2 stops8h 04m

$244

MemphisRock Springs

MEM - RKS

MEMRKS

Memphis

Thu 11/20

8:33 am-1:21 pm

1 stop5h 48m

Rock Springs Sweetwater County

Sun 11/23

1:56 pm-10:15 pm

1 stop7h 19m

$248

PhoenixRock Springs

PHX - RKS

PHXRKS

Phoenix Sky Harbor Intl

Wed 10/22

4:35 pm-10:07 pm

1 stop4h 32m

Rock Springs Sweetwater County

Sun 10/26

1:56 pm-8:44 pm

2 stops7h 48m

$254

PhoenixRock Springs

PHX - RKS

PHXRKS

Phoenix Sky Harbor Intl

Wed 10/22

10:41 am-10:07 pm

2 stops10h 26m

Rock Springs Sweetwater County

Sun 10/26

1:56 pm-12:14 am

2 stops11h 18m

$259

DenverRock Springs

DEN - RKS

DENRKS

Denver Intl

Sat 2/21

12:15 pm-1:30 pm

Nonstop1h 15m

Rock Springs Sweetwater County

Tue 2/24

2:05 pm-3:33 pm

Nonstop1h 28m

$261

MemphisRock Springs

MEM - RKS

MEMRKS

Memphis

Wed 10/22

8:56 am-1:23 pm

1 stop5h 27m

Rock Springs Sweetwater County

Mon 10/27

1:56 pm-10:15 pm

1 stop7h 19m

$278

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 resultsSorted by cheapest first
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How to get the cheapest flight ticket from United States to Rock Springs

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

What is the cheapest United States to Rock Springs Sweetwater County flight route?

Fly from Denver Intl to Rock Springs Sweetwater County for the best United States - Rock Springs Sweetwater County flight prices

What cabin class options are available on United States to Rock Springs Sweetwater County flights?

There is only 1 cabin class available to choose from on United States to Rock Springs Sweetwater County flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

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

You could potentially save up to 21% on your flight if you consider stops on a United States to Rock Springs flight.

Cheap United States to Rock Springs flight deals and tips

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

Fastest flight time

1h 07m

Direct flights

Tue, Thu, Sat and Sun

Airports in Rock Springs

1 airport
The fastest flight from United States to Rock Springs takes 1h 07m
Direct flights go from United States to Rock Springs on Tuesday, Thursday, Saturday and Sunday. There are no airlines offering direct flights.
There is 1 airport near Rock Springs: Rock Springs Sweetwater County (RKS)
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  • When did momondo last update prices for flights from United States to Rock Springs Sweetwater County Airport?

    Prices for flights from United States to Rock Springs Sweetwater County Airport were last updated today.

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from United States to Rock Springs Sweetwater County Airport.

  • What documentation or ID do you need to fly to Rock Springs Sweetwater County Airport?

    The travel and health documents you'll need for your trip to Rock Springs Sweetwater County 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 Rock Springs Sweetwater County 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 Rock Springs?

Best airlines flying from United States to Rock Springs

Compare and see reviews for airlines that fly from United States to Rock Springs with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $220Free CancellationRating
7.4
8,968 reviews
Search United Airlines flights

Traveling to a place near Rock Springs?

Book flights to Rock Springs if you plan to visit one of these locations
Green River

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We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from United States to Rock Springs for you.

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

Flights from United States to Rock Springs with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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If you are simply researching potential flights to Rock Springs, momondo offers a useful price alert feature which will track prices for flights to Rock Springs from United States and alert you when they change.

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