What is the cheapest airline to fly from Phoenix Sky Harbor Intl Airport to Rock Springs round-trip?

Currently priced at $238, United Airlines will fly you from Phoenix Sky Harbor Intl Airport to Rock Springs and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip.

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 day to fly round-trip from Phoenix Sky Harbor Intl Airport to Rock Springs?

It’s generally more expensive to depart on a Wednesday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.

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

It’s optimal to fly from Phoenix Sky Harbor Intl Airport to Rock Springs in the morning. By choosing this option you can save up to 10% on the cost of your flight, compared to a flight at noon.

What airport do you fly into for flights to Rock Springs from Phoenix Sky Harbor Intl?

Located just 7.1 mi from the city center, Rock Springs Sweetwater County is the airport most travelers will use when flying to Rock Springs from Phoenix Sky Harbor Intl. Booking flights from Phoenix Sky Harbor Intl to Sweetwater County (RKS) should be relatively easy as there are 0 daily inbound flights from Phoenix Sky Harbor Intl from 1 airline.

Can I find deals for flights from Sky Harbor Intl to Rock Springs that include hotel bookings?

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

How can I find direct flights from Sky Harbor Intl to Rock Springs?

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

Can I find deals for business class flights from Sky Harbor Intl to Rock Springs?

Yes. Cheapflights offers flight deals from Sky Harbor Intl 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.

$308+ Cheap Flights from Phoenix Sky Harbor Intl Airport to Rock Springs

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Cheap flight deals from Sky Harbor Intl to Rock Springs

Round-trip from	$308 (United Airlines)

From Phoenix Sky Harbor Intl to Rock Springs Sweetwater County

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Find flight deals from Sky Harbor Intl to Rock Springs

Cheapest flights from Sky Harbor Intl to Rock Springs
Explore the most affordable flight options available from Sky Harbor Intl to Rock Springs. Find the lowest fares from popular airlines and budget airlines, with prices last updated on agosto 14, 2025.

sáb. 11/13:32 pmPHX - RKS

1 stop5h 27mUnited Airlines

mar. 11/41:56 pmRKS - PHX

1 stop5h 53mUnited Airlines

Deal found 8/13

$308

jue. 8/286:05 amPHX - RKS

1 stop6h 18mUnited Airlines

lun. 9/15:45 amRKS - PHX

1 stop17h 16mUnited Airlines

Deal found 8/13

$447

Best flights from Sky Harbor Intl to Rock Springs
Discover carefully curated flight deals from Sky Harbor Intl to Rock Springs that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated agosto 14, 2025.

sáb. 11/16:00 amPHX - RKS

1 stop6h 21mUnited Airlines

mar. 11/41:56 pmRKS - PHX

1 stop7h 25mUnited Airlines

Deal found 8/11

$308

jue. 8/286:05 amPHX - RKS

1 stop6h 18mUnited Airlines

lun. 9/15:45 amRKS - PHX

1 stop17h 16mUnited Airlines

Deal found 8/13

$447

Last-minute flights from Sky Harbor Intl to Rock Springs
Discover last-minute flight deals from Sky Harbor Intl to Rock Springs. Data last updated agosto 14, 2025 and is based on user searches.

jue. 8/286:05 amPHX - RKS

1 stop6h 18mUnited Airlines

lun. 9/15:45 amRKS - PHX

1 stop17h 16mUnited Airlines

Deal found 8/13

$447

Cheapflights Fare Finder

Use the filters below to find and compare flights from Phoenix Sky Harbor Intl Airport to Rock Springs that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PhoenixRock Springs

PHX - RKS

PHXRKS

Phoenix Sky Harbor Intl

sáb. 11/1

6:00 am-1:21 pm

1 stop6h 21m

Rock Springs Sweetwater County

mar. 11/4

1:56 pm-9:21 pm

1 stop7h 25m

$308

PhoenixRock Springs

PHX - RKS

PHXRKS

Phoenix Sky Harbor Intl

jue. 8/28

6:05 am-1:23 pm

1 stop6h 18m

Rock Springs Sweetwater County

lun. 9/1

5:45 am-10:01 pm

1 stop17h 16m

$447

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/11

Best time to book a flight from Sky Harbor Intl to Rock Springs

Have a flexible travel schedule? Discover the best time to fly to Rock Springs from Sky Harbor Intl 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 Rock Springs

Peruse reviews from past customers who have flown with United Airlines from Phoenix Sky Harbor Intl Airport to Rock Springs to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

United Airlines

7.4

Good

8,916 reviews

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

8,916 reviews

United Airlines

7.4

Good

8,916 reviews

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

What airport do you fly into for flights to Rock Springs from Phoenix Sky Harbor Intl?
Located just 7.1 mi from the city center, Rock Springs Sweetwater County is the airport most travelers will use when flying to Rock Springs from Phoenix Sky Harbor Intl. Booking flights from Phoenix Sky Harbor Intl to Sweetwater County (RKS) should be relatively easy as there are 0 daily inbound flights from Phoenix Sky Harbor Intl from 1 airline.
What is the cheapest airline to fly from Phoenix Sky Harbor Intl Airport to Rock Springs round-trip?
Currently priced at $238, United Airlines will fly you from Phoenix Sky Harbor Intl Airport to Rock Springs and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip.
Can I find deals for flights from Sky Harbor Intl to Rock Springs that include hotel bookings?
Yes. In addition to deals on Sky Harbor Intl to Rock Springs flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Sky Harbor Intl to Rock Springs?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Sky Harbor Intl to Rock Springs.
Can I find deals for business class flights from Sky Harbor Intl to Rock Springs?
Yes. Cheapflights offers flight deals from Sky Harbor Intl 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 Sky Harbor Intl to Rock Springs

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$238	Average$379	FlexibilityNo cancel fee	On-time69%

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$308+ Cheap flights from Sky Harbor Intl (PHX) 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 11/1. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Sky Harbor Intl to Rock Springs with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Sky Harbor Intl to Rock Springs

Round-trip from

Find flight deals from Sky Harbor Intl to Rock Springs

Cheapest flights from Sky Harbor Intl to Rock SpringsExplore the most affordable flight options available from Sky Harbor Intl to Rock Springs. Find the lowest fares from popular airlines and budget airlines, with prices last updated on agosto 14, 2025.

Explore the most affordable flight options available from Sky Harbor Intl to Rock Springs. Find the lowest fares from popular airlines and budget airlines, with prices last updated on agosto 14, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Phoenix Sky Harbor Intl Airport to Rock Springs that are best for you.

Best time to book a flight from Sky Harbor Intl to Rock Springs

Have a flexible travel schedule? Discover the best time to fly to Rock Springs from Sky Harbor Intl with our price prediction graph.

Reviews of airlines servicing Rock Springs

Peruse reviews from past customers who have flown with United Airlines from Phoenix Sky Harbor Intl Airport to Rock Springs to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Sky Harbor Intl 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 Sky Harbor Intl?

What is the cheapest airline to fly from Phoenix Sky Harbor Intl Airport to Rock Springs round-trip?

Can I find deals for flights from Sky Harbor Intl to Rock Springs that include hotel bookings?

How can I find direct flights from Sky Harbor Intl to Rock Springs?

Can I find deals for business class flights from Sky Harbor Intl 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 Sky Harbor Intl to Rock Springs

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from Sky Harbor Intl to Rock Springs

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Travel Smart

Cheapest flights from Sky Harbor Intl to Rock Springs
Explore the most affordable flight options available from Sky Harbor Intl to Rock Springs. Find the lowest fares from popular airlines and budget airlines, with prices last updated on agosto 14, 2025.