$428+ Cheap flights from Missouri 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 1/31. Fares are subject to change and may not be available on all flights or dates of travel.
STL — RKS
Feb 28 — Mar 71
1 adult, Economy
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1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Missouri to Rock Springs
Cheapest flights from Missouri to Rock SpringsExplore the most affordable flight options available from Missouri 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 Missouri to Rock Springs. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.
This United Airlines deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/275:03 pm
SGF
- RKS
1 stop6h 12m
United Airlines
Sat 1/312:08 pm
RKS
- SGF
1 stop5h 28m
United Airlines
Deal found 1/26![United Airlines logo]()
$428
This United Airlines deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/315:03 pm
SGF
- RKS
1 stop6h 12m
United Airlines
Tue 2/32:08 pm
RKS
- SGF
2 stops23h 30m
United Airlines
Deal found 1/28![United Airlines logo]()
$588
This United Airlines deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/126:15 am
SGF
- RKS
2 stops32h 18m
United Airlines
Wed 3/182:10 pm
RKS
- SGF
2 stops19h 36m
United Airlines
Deal found 1/27![United Airlines logo]()
$848
Find flight deals from Missouri to Rock Springs
Keep the following information in mind while searching for Missouri to Rock Springs flight deals. Data was last updated January 29, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $848 (United Airlines) |
Cheapflights Fare Finder
Customize your flight search to find flights from Missouri 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, Cheapflights users made 2,558,603 searches. Data last updated January 29, 2026.
Use the filters below to find and compare flights from Missouri to Rock Springs that are best for you.
Fly from
Missouri
Fly to
Rock Springs
Route
Depart
Return
Price
SpringfieldRock Springs
SGF - RKS
SGFRKS
Springfield-Branson
Thu 3/12
6:15 am-1:33 pm
2 stops32h 18m
Rock Springs Sweetwater County
Wed 3/18
2:10 pm-10:46 am
2 stops19h 36m
$848
Best time to book a flight from Missouri to Rock Springs
Have a flexible travel schedule? Discover the best time to fly to Rock Springs from Missouri 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 Missouri to Rock Springs
No data available for this route at this time. Please check back soon.
Related info for your journey
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Alternative routes for Missouri to Rock Springs
See prices for flight routes from nearby airports that may be better suited for you.
Top airline flying from Missouri to Rock Springs
Discover the top airline that operate flights from Missouri to Rock Springs. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 29, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$294 | Average$423 | FlexibilityNo cancel fee | On-time69% |