HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Bismarck

$265+ Cheap flights from Rock Springs to Bismarck (RKS - BIS)

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 8/12. Fares are subject to change and may not be available on all flights or dates of travel.
RKS — BIS
ago. 3 — ago. 101
dom. 8/3
dom. 8/10
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Rock Springs to Bismarck with Cheapflights

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

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

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 Rock Springs to Bismarck

Discover tips and strategies to find the most affordable flight options for your journey from Rock Springs (RKS) to Bismarck (BIS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated julio 29, 2025.

Round-trip from

$265
(United Airlines)
From Rock Springs Sweetwater County to Bismarck
Search Deals

Find flight deals from Rock Springs to Bismarck

Cheapest flights from Rock Springs to Bismarck
Explore the most affordable flight options available from Rock Springs to Bismarck. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 29, 2025.

This United Airlines deal was found by Cheapflights users on 7/28. 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.
mar. 8/125:33 amRKS - BIS
1 stop4h 01mUnited Airlines
sáb. 8/165:11 pmBIS - RKS
1 stop6h 02mUnited Airlines
Deal found 7/28$265

Cheapflights Fare Finder

 
Customize your flight search to find flights from Rock Springs to Bismarck 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 julio 29, 2025.
Use the filters below to find and compare flights from Rock Springs to Bismarck that are best for you.

Fly from

Rock Springs

Fly to

Bismarck

Route

Depart

Return

Price

Rock SpringsBismarck

RKS - BIS

RKSBIS

Rock Springs Sweetwater County

mar. 8/12

5:33 am-10:34 am

1 stop4h 01m

Bismarck

sáb. 8/16

5:11 pm-10:13 pm

1 stop6h 02m

$265

Rock SpringsBismarck

RKS - BIS

RKSBIS

Rock Springs Sweetwater County

mar. 8/12

5:33 am-10:34 am

1 stop4h 01m

$316

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Best time to book a flight from Rock Springs to Bismarck

Have a flexible travel schedule? Discover the best time to fly to Bismarck from Rock Springs 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.

Reviews of airlines servicing Bismarck

Get insights into the airlines that provide service to Bismarck. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Bismarck. Reviews last updated julio 29, 2025.
Read through reviews of airlines operating flights from Rock Springs to Bismarck, such as United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,896 reviews

Crew

8.1

Overall

7.4

Food

6.6

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
United Airlines
7.4
Good
8,896 reviews
United Airlines
7.4
Good
8,896 reviews

Crew

8.1

Overall

7.4

Food

6.6

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

Related info for your journey

Find useful and relevant information for your journey from Rock Springs to Bismarck. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • Can I find deals for flights from Rock Springs to Bismarck that include hotel bookings?

    Yes. In addition to deals on Rock Springs to Bismarck flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Rock Springs to Bismarck?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Rock Springs to Bismarck.

  • Can I find deals for business class flights from Rock Springs to Bismarck?

    Yes. Cheapflights offers flight deals from Rock Springs to Bismarck by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Rock Springs to Bismarck?

    Currently, August is the cheapest month in which you can book a flight from Rock Springs to Bismarck (average of $346). Flying from Rock Springs to Bismarck in July is currently the most expensive (average of $433). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.