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Rock Springs

$328+ 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 2/3. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — RKS
Jan 27 — Feb 31
Tue 1/27
Tue 2/3
1 adult, Economy
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Cheap flight deals from Phoenix to Rock Springs

Best flights from Phoenix to Rock Springs
Discover carefully curated flight deals from Phoenix to Rock Springs that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 28, 2025.

This United Airlines deal was found by Cheapflights users on 12/25. 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 2/35:34 pmPHX - RKS
1 stop4h 41mUnited Airlines
Sat 2/72:08 pmRKS - PHX
1 stop5h 37mUnited Airlines
Deal found 12/25$328
This United Airlines deal was found by Cheapflights users on 12/27. 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.
Sun 1/118:30 amPHX - RKS
1 stop4h 58mUnited Airlines
Thu 1/152:08 pmRKS - PHX
3 stops57h 49mUnited Airlines
Deal found 12/27$633

Find 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 December 28, 2025.

Round-trip from

$328
(United Airlines)
From Phoenix to Rock Springs Sweetwater County
Search Deals

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 December 28, 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 2/3

5:34 pm-10:15 pm

1 stop4h 41m

Rock Springs Sweetwater County

Sat 2/7

2:08 pm-7:45 pm

1 stop5h 37m

$328

PhoenixRock Springs

PHX - RKS

PHXRKS

Phoenix Sky Harbor Intl

Sun 1/11

8:30 am-1:28 pm

1 stop4h 58m

Rock Springs Sweetwater County

Thu 1/15

2:08 pm-11:57 pm

3 stops57h 49m

$633

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/25

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 December 28, 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
9,113 reviews

Entertainment

7.1

Overall

7.4

Food

6.6

Boarding

7.7

Crew

8.1

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
United Airlines
7.4
Good
9,113 reviews
United Airlines
7.4
Good
9,113 reviews

Entertainment

7.1

Overall

7.4

Food

6.6

Boarding

7.7

Crew

8.1

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.

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 4h 41m. 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.

  • What is the cheapest airline to fly from Phoenix to Rock Springs round-trip?

    Our cheapest airline available from Phoenix to Rock Springs is United Airlines. Our recent data shows that you can find tickets from as low as $308 on this airline.

  • 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

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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 December 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$308Average$348FlexibilityNo cancel feeOn-time69%

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