HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Rock Springs

$238+ Cheap flights from Phoenix 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 11/18. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — RKS
Nov 20 — Nov 271
Thu 11/20
Thu 11/27
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Phoenix to Rock Springs 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 Phoenix to Rock Springs

Discover tips and strategies to find the most affordable flight options for your journey from Phoenix (PH1) to Rock Springs (RKS). 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 October 21, 2025.

Round-trip from

$238
(United Airlines)
From Phoenix to Rock Springs Sweetwater County
Search Deals

Find flight deals from Phoenix to Rock Springs

Cheapest flights from Phoenix to Rock Springs
Explore the most affordable flight options available from Phoenix to Rock Springs. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 21, 2025.

This United Airlines deal was found by Cheapflights users on 10/21. 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 11/187:00 amPHX - RKS
1 stop6h 21mUnited Airlines
Tue 11/251:56 pmRKS - PHX
1 stop7h 25mUnited Airlines
Deal found 10/21$238
This United Airlines deal was found by Cheapflights users on 10/20. 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 11/45:37 pmPHX - RKS
1 stop4h 22mUnited Airlines
Sat 11/85:15 amRKS - PHX
1 stop4h 33mUnited Airlines
Deal found 10/20$248
This United Airlines deal was found by Cheapflights users on 10/18. 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 11/11:51 pmPHX - RKS
1 stop7h 08mUnited Airlines
Tue 11/41:56 pmRKS - PHX
1 stop7h 25mUnited Airlines
Deal found 10/18$318
This United Airlines deal was found by Cheapflights users on 10/21. 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.
Fri 10/243:00 pmPHX - RKS
1 stop6h 07mUnited Airlines
Mon 10/271:56 pmRKS - PHX
1 stop7h 25mUnited Airlines
Deal found 10/21$328

Cheapflights Fare Finder

 
Customize your flight search to find flights from Phoenix 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 October 21, 2025.
Use the filters below to find and compare flights from Phoenix to Rock Springs that are best for you.

Fly from

Phoenix

Fly to

Rock Springs

Route

Depart

Return

Price

PhoenixRock Springs

PHX - RKS

PHXRKS

Phoenix Sky Harbor Intl

Tue 11/18

7:00 am-1:21 pm

1 stop6h 21m

Rock Springs Sweetwater County

Tue 11/25

1:56 pm-9:21 pm

1 stop7h 25m

$238

PhoenixRock Springs

PHX - RKS

PHXRKS

Phoenix Sky Harbor Intl

Tue 11/4

5:37 pm-9:59 pm

1 stop4h 22m

Rock Springs Sweetwater County

Sat 11/8

5:15 am-9:48 am

1 stop4h 33m

$248

PhoenixRock Springs

PHX - RKS

PHXRKS

Phoenix Sky Harbor Intl

Sat 11/1

1:51 pm-9:59 pm

1 stop7h 08m

Rock Springs Sweetwater County

Tue 11/4

1:56 pm-9:21 pm

1 stop7h 25m

$318

PhoenixRock Springs

PHX - RKS

PHXRKS

Phoenix Sky Harbor Intl

Fri 10/24

3:00 pm-10:07 pm

1 stop6h 07m

Rock Springs Sweetwater County

Mon 10/27

1:56 pm-8:21 pm

1 stop7h 25m

$328

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/21

Best time to book a flight from Phoenix to Rock Springs

Have a flexible travel schedule? Discover the best time to fly to Rock Springs from Phoenix 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 Phoenix to Rock Springs
No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Rock Springs

Get insights into the airlines that provide service to Rock Springs. 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 Rock Springs. Reviews last updated October 21, 2025.
Read through reviews of airlines operating flights from Phoenix to Rock Springs, 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
8,988 reviews

Entertainment

7.1

Comfort

7.3

Food

6.6

Overall

7.4

Crew

8.1

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
United Airlines
7.4
Good
8,988 reviews
United Airlines
7.4
Good
8,988 reviews

Entertainment

7.1

Comfort

7.3

Food

6.6

Overall

7.4

Crew

8.1

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.

Related info for your journey

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

  • What airport do you fly into for flights to Rock Springs from Phoenix?

    For a flight from Phoenix to Rock Springs, you will be flying into Sweetwater County. Rock Springs Sweetwater County (RKS) is just 7.1 mi from the center of the city. Sweetwater County is the only Rock Springs airport and it handles 0 inbound flights from Phoenix per day. 1 airline has flights to Rock Springs Sweetwater County from Phoenix on a regular basis.

  • How long is the flight from Phoenix to Rock Springs?

    Airlines like United Airlines fly from Phoenix to Rock Springs in about 6h 21m. The time it takes to get you to your destination can typically vary by up to . There are 586 mi between Phoenix and Rock Springs.

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

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

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

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

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

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

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.

Alternative routes for Phoenix to Rock Springs

See prices for flight routes from nearby airports that may be better suited for you.
Sky Harbor Intl to Denver flights
Sky Harbor Intl to Salt Lake City flights
Tucson to Denver flights
Las Vegas to Denver flights
Las Vegas to Salt Lake City flights
Tucson to Salt Lake City flights
Sky Harbor Intl to Jackson flights
Prescott to Denver flights
Sky Harbor Intl to Casper flights
Flagstaff to Denver flights
Las Vegas to Jackson flights
Tucson to Jackson flights
Flagstaff to Salt Lake City flights
Sky Harbor Intl to Laramie flights
Sky Harbor Intl to Cody flights
Las Vegas to Cody flights
Sky Harbor Intl to Rock Springs flights
Tucson to Cody flights
Las Vegas to Casper flights
Las Vegas to Gillette flights
Yuma to Denver flights
Las Vegas to West Yellowstone flights
Sky Harbor Intl to West Yellowstone flights

Top airline flying from Phoenix to Rock Springs

Discover the top airline that operate flights from Phoenix 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 October 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$238Average$383FlexibilityNo cancel feeOn-time69%

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.