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Flights from St. Louis to Rock Springs
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Flights from St. Louis to Rock Springs Starting at NZD 557

We've found these cheap flights for you. You can book one-way or return flight tickets.

  • Round-trip
      • STL13:39
        9h 21m
        1 stop
        RKS22:00
        Thu, Feb 27|St. Louis - Rock Springs|United Airlines
        RKS14:22
        5h 22m
        1 stop
        STL20:44
        Wed, Mar 5|Rock Springs - St. Louis|United Airlines
        NZD 557NZD 1,071
        48% OFF
        48% OFF
        NZD 1,071NZD 557

        Choose United Airlines flights from St. Louis to Rock Springs. The one-way connecting flight with United Airlines departs from St. Louis Lambert International Airport on Thu, Feb 27-Wed, Mar 5, arriving at Rock Springs-Sweetwater County Airport. One-way Prices start from NZD 557 including taxes and charges.

      • STL13:39
        9h 21m
        1 stop
        RKS22:00
        Tue, Mar 4|St. Louis - Rock Springs|United Airlines
        RKS14:20
        6h 14m
        1 stop
        STL21:34
        Mon, Mar 10|Rock Springs - St. Louis|United Airlines
        NZD 561NZD 1,071
        48% OFF
        48% OFF
        NZD 1,071NZD 561

        Choose United Airlines flights from St. Louis to Rock Springs. The one-way connecting flight with United Airlines departs from St. Louis Lambert International Airport on Tue, Mar 4-Mon, Mar 10, arriving at Rock Springs-Sweetwater County Airport. One-way Prices start from NZD 561 including taxes and charges.

      • STL13:39
        9h 21m
        1 stop
        RKS22:00
        Tue, Feb 25|St. Louis - Rock Springs|United Airlines
        RKS14:22
        5h 22m
        1 stop
        STL20:44
        Mon, Mar 3|Rock Springs - St. Louis|United Airlines
        NZD 564NZD 1,071
        47% OFF
        47% OFF
        NZD 1,071NZD 564

        Choose United Airlines flights from St. Louis to Rock Springs. The one-way connecting flight with United Airlines departs from St. Louis Lambert International Airport on Tue, Feb 25-Mon, Mar 3, arriving at Rock Springs-Sweetwater County Airport. One-way Prices start from NZD 564 including taxes and charges.

      • STL08:20
        6h 12m
        1 stop
        RKS13:32
        Wed, Feb 26|St. Louis - Rock Springs|United Airlines
        RKS14:22
        5h 22m
        1 stop
        STL20:44
        Tue, Mar 4|Rock Springs - St. Louis|United Airlines
        NZD 565
        NZD 565

        Choose United Airlines flights from St. Louis to Rock Springs. The one-way connecting flight with United Airlines departs from St. Louis Lambert International Airport on Wed, Feb 26-Tue, Mar 4, arriving at Rock Springs-Sweetwater County Airport. One-way Prices start from NZD 565 including taxes and charges.

      • STL16:39
        6h 21m
        1 stop
        RKS22:00
        Sun, Feb 23|St. Louis - Rock Springs|United Airlines
        RKS14:22
        5h 22m
        1 stop
        STL20:44
        Sat, Mar 1|Rock Springs - St. Louis|United Airlines
        NZD 566
        NZD 566

        Choose United Airlines flights from St. Louis to Rock Springs. The one-way connecting flight with United Airlines departs from St. Louis Lambert International Airport on Sun, Feb 23-Sat, Mar 1, arriving at Rock Springs-Sweetwater County Airport. One-way Prices start from NZD 566 including taxes and charges.

      • STL07:05
        15h 55m
        2 stops
        RKS22:00
        Sun, Mar 2|St. Louis - Rock Springs|United Airlines
        RKS14:20
        6h 14m
        1 stop
        STL21:34
        Sat, Mar 8|Rock Springs - St. Louis|United Airlines
        NZD 744
        NZD 744

        Choose United Airlines flights from St. Louis to Rock Springs. The one-way connecting flight with United Airlines departs from St. Louis Lambert International Airport on Sun, Mar 2-Sat, Mar 8, arriving at Rock Springs-Sweetwater County Airport. One-way Prices start from NZD 744 including taxes and charges.

      • STL13:45
        24h 52m
        1 stop
        RKS13:37
        Thu, Mar 6|St. Louis - Rock Springs|United Airlines
        RKS14:20
        6h 14m
        1 stop
        STL21:34
        Wed, Mar 12|Rock Springs - St. Louis|United Airlines
        NZD 750
        NZD 750

        Choose United Airlines flights from St. Louis to Rock Springs. The one-way connecting flight with United Airlines departs from St. Louis Lambert International Airport on Thu, Mar 6-Wed, Mar 12, arriving at Rock Springs-Sweetwater County Airport. One-way Prices start from NZD 750 including taxes and charges.

      • STL16:39
        6h 21m
        1 stop
        RKS22:00
        Mon, Feb 24|St. Louis - Rock Springs|United Airlines
        RKS14:22
        25h 11m
        1 stop
        STL16:33
        Sun, Mar 2|Rock Springs - St. Louis|United Airlines
        NZD 824
        NZD 824

        Choose United Airlines flights from St. Louis to Rock Springs. The one-way connecting flight with United Airlines departs from St. Louis Lambert International Airport on Mon, Feb 24-Sun, Mar 2, arriving at Rock Springs-Sweetwater County Airport. One-way Prices start from NZD 824 including taxes and charges.

      • STL01:00 pm
        3h 5m
        Nonstop
        RKS02:00 pm
        Sat, Feb 22|St. Louis - Rock Springs|United Airlines
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Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

St. Louis to Rock Springs flight time & flight schedules

Flight info.
Departure
Arrival
Weekly Schedule

  1. UA2135

    United Airlines

    07:00

    STL

    2.5h

    08:33

    DEN

    SMTWTFS
    Search

  2. UA5081

    United Airlines

    12:15

    DEN

    1.3h

    13:32

    RKS

    SMTWTFS

  3. UA3564

    United Airlines

    07:05

    STL

    2.5h

    10:34

    EWR

    SMTWTFS
    Search

  4. UA2852

    United Airlines

    15:36

    EWR

    4.4h

    18:00

    DEN

    SMTWTFS

  5. UA5094

    United Airlines

    21:00

    DEN

    1.2h

    22:13

    RKS

    SMTWTFS

  6. UA2625

    United Airlines

    13:41

    STL

    2.5h

    15:10

    DEN

    SMTWTFS
    Search

  7. UA5094

    United Airlines

    21:00

    DEN

    1.2h

    22:13

    RKS

    SMTWTFS

  8. UA1004

    United Airlines

    16:30

    STL

    2.3h

    17:50

    DEN

    SMTWTFS
    Search

  9. UA5094

    United Airlines

    21:00

    DEN

    1.2h

    22:13

    RKS

    SMTWTFS
Find more flights and airlines

Find the best time to fly from St. Louis to Rock Springs

We monitor flight fares to help you find the best deals effortlessly

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

FAQ

  • When are flight tickets from St. Louis (STL) to Rock Springs (RKS) the cheapest?

    Airlines adjust prices for flights from St. Louis to Rock Springs based on the departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.

  • How much do flights from St. Louis (STL) to Rock Springs (RKS) cost?

    According to Trip.com's data, the lowest price is around NZD 432.

How to find a cheap flight from St. Louis to Rock Springs

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from St. Louis to Rock Springs. Book your flights at the right time and save more.
1
Book Early
Once prices are gone, they're gone. Lock in deals while you can!
2
Compare Flight Prices
Compare prices on travel agency and airline websites.
3
Look Out for Deals
Check airline and travel agency websites for latest flight deals
4
Check One-way Fares
Buying two cheap one-way flights can sometimes be a better deal than a round-trip.
5
Try Different Dates
Flying during the week, early in the morning, or late at night can help save money.
6
Use the Trip.com App
Save up to £10 per person when booking your flights on Trip.com

Flight Information from St. Louis to Rock Springs

Off-season for travelNovember
Peak season for travelNovember
Flight distance1,636.16 km
Popular airlineUnited Airlines

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