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 $238 on this airline.

In terms of precipitation, rainfall in Rock Springs ranges from 0.5 - 1.2 inches per month. May is typically the wettest month, when rainfall can reach 1.2 in. January is typically the driest time to visit Rock Springs when rainfall is around 0.5 in.

If weather is an important factor for your trip to Rock Springs, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 21.2 F).

What is the cheapest time of day to fly from PHX to RKS?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Phoenix to Rock Springs as you normally would.

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.

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.

$413+ Cheap Flights from Phoenix to Rock Springs

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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 November 13, 2025.

Sat 11/157:00 amPHX - RKS

1 stop6h 21mUnited Airlines

Tue 11/181:56 pmRKS - PHX

1 stop7h 25mUnited Airlines

Deal found 11/11

$413

Last-minute flights from Phoenix to Rock Springs
Discover last-minute flight deals from Phoenix to Rock Springs. Data last updated November 13, 2025 and is based on user searches.

Sat 11/157:00 amPHX - RKS

1 stop6h 21mUnited Airlines

Tue 11/181:56 pmRKS - PHX

1 stop7h 25mUnited Airlines

Deal found 11/11

$413

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

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

9,017 reviews

Reviews

1 / 20

2.0

Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

United Airlines

7.4

Good

9,017 reviews

United Airlines

7.4

Good

9,017 reviews

Reviews

1 / 20

2.0

Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

Related info for your journey

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.
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 $238 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

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Phoenix to Rock Springs

Top airline flying from Phoenix to Rock Springs

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$238	Average$328	FlexibilityNo cancel fee	On-time69%

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$413+ 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 11/15. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Phoenix to Rock Springs with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Find flight deals from Phoenix to Rock Springs

Cheapest flights from Phoenix to Rock SpringsExplore 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 November 13, 2025.

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 November 13, 2025.

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.

Cheapflights Insights

Everything you need to know about your flight from Phoenix to Rock Springs

Reviews of airlines servicing Rock Springs

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.

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?

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

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

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

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

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.

Top airline flying from Phoenix to Rock Springs

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Book with Flexibility

Travel Smart

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 November 13, 2025.