RKS

$197 Find Cheap Flights to Rock Springs - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$261
Typical prices: $328-$558
United Airlines
Fri 11/23Wed 11/28
DEN - RKS • Non-stop
Cheapest one-way
$197
Typical prices: $329-$498
United Airlines
Tue 10/16
DEN - RKS • Non-stop
Nonstop flights
Every day
You can fly direct with United Airlines. Average duration is 1h 12m
FAQs
FAQs
Top airlines
United Airlines
Most flights • 14 per week
United Airlines
Best reviews • 7.4 score
Airline reviews
+1
Airline reviews
+1
When to travel
January
Cheapest • 26% price drop
June
Most popular
Good to know
+1
Good to know
+1
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We hope you love your trip to Rock Springs!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights to Rock Springs

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals to Rock Springs

Thu, Sep 3 - Sun, Sep 6
United Airlines Logo
12:48 pm - 2:00 pmDEN  Denver Intl-RKS Rock Springs Sweetwater County
1h 12mnonstop
United Airlines Logo
5:05 am - 6:23 amRKS  Rock Springs Sweetwater County-DEN Denver Intl
1h 18mnonstop
$261United Airlines
Thu, Sep 3 - Mon, Sep 7
United Airlines Logo
12:48 pm - 2:00 pmDEN  Denver Intl-RKS Rock Springs Sweetwater County
1h 12mnonstop
United Airlines Logo
5:05 am - 6:23 amRKS  Rock Springs Sweetwater County-DEN Denver Intl
1h 18mnonstop
$261United Airlines
Mon, Nov 23 - Fri, Nov 27
United Airlines Logo
12:30 pm - 1:44 pmDEN  Denver Intl-RKS Rock Springs Sweetwater County
1h 14mnonstop
United Airlines Logo
2:23 pm - 3:48 pmRKS  Rock Springs Sweetwater County-DEN Denver Intl
1h 25mnonstop
$261United Airlines
Mon, Nov 23 - Sat, Nov 28
United Airlines Logo
9:10 pm - 10:20 pmDEN  Denver Intl-RKS Rock Springs Sweetwater County
1h 10mnonstop
United Airlines Logo
2:23 pm - 3:48 pmRKS  Rock Springs Sweetwater County-DEN Denver Intl
1h 25mnonstop
$261United Airlines
Sat, Oct 3 - Sat, Oct 10
United Airlines Logo
12:30 pm - 1:42 pmDEN  Denver Intl-RKS Rock Springs Sweetwater County
1h 12mnonstop
United Airlines Logo
5:05 am - 6:23 amRKS  Rock Springs Sweetwater County-DEN Denver Intl
1h 18mnonstop
$280United Airlines
Thu, Sep 17 - Sun, Sep 20
United Airlines Logo
9:10 pm - 10:21 pmDEN  Denver Intl-RKS Rock Springs Sweetwater County
1h 11mnonstop
United Airlines Logo
5:05 am - 6:23 amRKS  Rock Springs Sweetwater County-DEN Denver Intl
1h 18mnonstop
$281United Airlines
Fri, Sep 4 - Tue, Sep 8
United Airlines Logo
9:10 pm - 10:21 pmDEN  Denver Intl-RKS Rock Springs Sweetwater County
1h 11mnonstop
United Airlines Logo
5:05 am - 6:23 amRKS  Rock Springs Sweetwater County-DEN Denver Intl
1h 18mnonstop
$281United Airlines
Thu, Dec 31 - Mon, Jan 4
United Airlines Logo
12:15 pm - 1:30 pmDEN  Denver Intl-RKS Rock Springs Sweetwater County
1h 15mnonstop
United Airlines Logo
5:25 am - 6:53 amRKS  Rock Springs Sweetwater County-DEN Denver Intl
1h 28mnonstop
$281United Airlines
Thu, Sep 24 - Sun, Sep 27
United Airlines Logo
6:00 am - 1:42 pmPHX  Phoenix Sky Harbor Intl-RKS Rock Springs Sweetwater County
6h 42m1 stop Denver Intl
United Airlines Logo
5:05 am - 9:07 amRKS  Rock Springs Sweetwater County-PHX Phoenix Sky Harbor Intl
5h 02m1 stop Denver Intl
$308United Airlines
Fri, Sep 25 - Sun, Sep 27
United Airlines Logo
4:29 pm - 10:21 pmPHX  Phoenix Sky Harbor Intl-RKS Rock Springs Sweetwater County
4h 52m1 stop Denver Intl
United Airlines Logo
5:05 am - 9:07 amRKS  Rock Springs Sweetwater County-PHX Phoenix Sky Harbor Intl
5h 02m1 stop Denver Intl
$308United Airlines
Booking Insights

KAYAK's insights & trends for flights to Rock Springs

Get data-powered insights and trends for flights to Rock Springs to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest flight to Rock Springs?

Denver to Rock Springs is the cheapest route at $261 round-trip, found in the past 5 days on KAYAK. KAYAK data shows this is also the most popular route.

How much is a flight to Rock Springs?

A round-trip flight to Rock Springs costs $442 on average, based on data over the past 12 months on KAYAK. Round-trip fares from Denver average $340.

What is the cheapest day to fly to Rock Springs?

Tuesday is the cheapest day to fly to Rock Springs at $408 round-trip on average over the past 12 months on KAYAK. Sunday is the most expensive at $758.

What is the cheapest month to fly to Rock Springs?

  • January and November are the cheapest months to fly to Rock Springs with an average price of $328 round-trip.
  • March ($551) and June ($543) are the most expensive.
  • Based on KAYAK data over the past 12 months.

What is the cheapest time of day to fly to Rock Springs?

Evening flights to Rock Springs are the cheapest at $351 round-trip on average. Night flights are the most expensive at $478.

What is a good deal for flights to Rock Springs?

Flights under $328 are considered a good deal. 25% of KAYAK users found round-trip flights to Rock Springs at or below these prices, with the lowest fares from:

  • Denver $290
.

Find deals

Key details for flights to Rock Springs

Low season

February

Cheapest flight

$197
Best time to beat the crowds with an average 22% drop in price.
Most popular time to fly with an average 23% increase in price.
Flight from Denver to Rock Springs

When to book flights to Rock Springs

Are your dates flexible? Find out the best times to travel to Rock Springs based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your questions about flights to Rock Springs, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • What is the difference between the most popular and the most frequent airline at Rock Springs?

    United Airlines operates the most flights from the United States to Rock Springs at 14 per week, and for this route United Airlines is also the airline most often selected by KAYAK users searching for flights from the United States to Rock Springs. The two are often different because flight volume reflects an airline's schedule, while popularity reflects traveler choice.

  • How long is a nonstop flight to Rock Springs?

    Nonstop flights to Rock Springs are available from Denver, with a flight time of about 1h 10m.

  • How many flights serve Rock Springs?

    Rock Springs receives 2 flights per day and 14 per week from across the world. Denver has the most flights to Rock Springs, with 14 weekly flights.

  • How do I know if a flight to Rock Springs is a good deal?

    A good deal on a flight to Rock Springs is around $328 round-trip. This fare is in the lowest 25% of round-trip prices searched on KAYAK, averaged across the cities most often searched as origins by KAYAK users.

  • Which airlines should I consider for flights to Rock Springs?

    United Airlines is the most popular airline with KAYAK users flying to Rock Springs, and has the best on-time record at the destination's main airport.

Your guide to booking Rock Springs flights

From booking to airport arrival, find tips to help you plan your flight with more confidence.
  • For flights to Rock Springs, recent KAYAK data shows that stronger deals tend to land around $328 round-trip. If you see a fare below that threshold, it's a strong deal – book before the price climbs back up.
  • If you can choose when to go, time your trip to Rock Springs around January. Round-trip fares historically average $328 that month – typically the cheapest month to travel based on the last 12 months.
  • Before you book:

    • Check the route's typical price range so you can spot a deal.
    • Confirm baggage fees and seat-selection costs on budget carriers.
    • Verify whether you need any travel documents beyond ID.
    • Pick a departure airport, since your nearest may not be the cheapest origin.
  • Shift your departure to afternoon to save up to $127 per round-trip. Afternoon flights to Rock Springs average $351 compared to $478 for evening flights. See the time-of-day chart above for the full breakdown.
  • Bag allowances vary by airline, fare type, cabin class and route. On flights to Rock Springs, some airlines may include bags at no extra cost. For example, United Airlines includes a cabin bag in Economy Class. Always check the fare details before booking, since bag policies can change by ticket type.

Reviews of the top airline flying to Rock Springs

 
Need help choosing which airline to fly with to Rock Springs? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 10106 reviews
7.3Comfort
7.7Boarding
6.7Food
7.1Entertainment
8.1Crew
Airline reviews

The flight was excellent. Their was no service as we boarded, the flight attendants spent about 30 minutes just taking and not really caring that the cabin was about 80 degrees and did not offered any beverage to first class passengers or any passenger. The flight from DEN to ONT is not long but not under an hour, we received one drink and bag of chips if you were lucky. I was in first class…. I did leave my hat on the plane and it only took less than five minutes for a United rep to locate and bring it to me.

10.0 ExcellentFred, Aug 2026
Read more United Airlines reviews

The flight was excellent. Their was no service as we boarded, the flight attendants spent about 30 minutes just taking and not really caring that the cabin was about 80 degrees and did not offered any beverage to first class passengers or any passenger. The flight from DEN to ONT is not long but not under an hour, we received one drink and bag of chips if you were lucky. I was in first class…. I did leave my hat on the plane and it only took less than five minutes for a United rep to locate and bring it to me.

Flight did not have wifi service. It was experiencing technical difficulties. Definitely and old plane that needs updating.

Very Poor. Significant delays getting to Chicago and then very poor communication on delays in Chicago to Cleveland. We could have rented a car and driven there faster than the delays ended up being.

The app logs you out right when you are boarding requiring all passwords and reservation number for the flight. Super annoying

The pre-order only approach for fresh food is really challenging

the seat has a problem. the back had a hole.

The back to back mechanical delays from Denver to San Diego and then on my return flight from Denver to Great Falls it added extra time both ways

Really old place. Not as clean as it should be, tray tables needed better cleaning. The items, trays and some other items need to b6 engineered. Anything task you or crew may do is incredibly load, seriously engineer for quiet smooth, easy. Just opening and closing the tray table is actually dangerous and can easily injure a finger. I'm sure it happens as it happened to me! First time I used United and likely will be the last!

Like the fact that the boarding was expedited. But the delay and chaos around the onboarding was not appreciated.

Flight was 2.5 late. Maybe not United’s fault but late none the less. We were late as well on the first leg. WiFi quit working with an hour left.

Everything you need to know for your flight to Rock Springs

Information on the airport you'll fly into in Rock Springs

Rock Springs (RKS)