PHX - RKS

$318 Find Cheap Flights from Phoenix to Rock Springs

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Phoenix to Rock Springs departing on 5/3. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Rock Springs

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Phoenix to Rock Springs, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Phoenix to Rock Springs, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$318
United Airlines
Sun 5/3Sun 5/10
PHX - RKS • 1 stop
Nonstop flights
Not available
There are currently no direct flights between Phoenix and Rock Springs. You'll need at least 1 connection.
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Flight Deals

Cheap Flights from Phoenix to Rock Springs (PHX-RKS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Phoenix to Rock Springs that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Phoenix to Rock Springs

Sun, May 3 - Sun, May 10
United Airlines Logo
6:00 am - 1:30 pm
PHX
-
RKS
6h 30m
1 stop
United Airlines Logo
2:15 pm - 8:19 pm
RKS
-
PHX
7h 04m
1 stop
$318United Airlines
Sun, May 3 - Sun, May 10
United Airlines Logo
6:00 am - 1:30 pm
PHX
-
RKS
6h 30m
1 stop
United Airlines Logo
2:15 pm - 9:32 pm
RKS
-
PHX
8h 17m
2 stops
$324United Airlines
Sat, Aug 15 - Tue, Aug 18
United Airlines Logo
10:26 am - 10:01 pm
PHX
-
RKS
10h 35m
2 stops
United Airlines Logo
5:25 am - 10:33 am
RKS
-
PHX
6h 08m
1 stop
$329United Airlines
Sat, Aug 15 - Tue, Aug 18
United Airlines Logo
10:26 am - 10:01 pm
PHX
-
RKS
10h 35m
2 stops
United Airlines Logo
5:25 am - 2:54 pm
RKS
-
PHX
10h 29m
2 stops
$334United Airlines
Tue, Apr 28 - Sat, May 2
United Airlines Logo
6:00 am - 1:30 pm
PHX
-
RKS
6h 30m
1 stop
United Airlines Logo
2:15 pm - 8:19 pm
RKS
-
PHX
7h 04m
1 stop
$398United Airlines
Tue, Apr 28 - Sat, May 2
United Airlines Logo
6:00 am - 1:30 pm
PHX
-
RKS
6h 30m
1 stop
United Airlines Logo
5:15 am - 2:40 pm
RKS
-
PHX
10h 25m
2 stops
$404United Airlines
Tue, Apr 28 - Sat, May 2
United Airlines Logo
1:30 pm - 10:15 pm
PHX
-
RKS
7h 45m
2 stops
United Airlines Logo
5:15 am - 2:44 pm
RKS
-
PHX
10h 29m
2 stops
$409United Airlines
Tue, Apr 28 - Sat, May 2
United Airlines Logo
4:34 pm - 10:15 pm
PHX
-
RKS
4h 41m
1 stop
United Airlines Logo
5:15 am - 8:48 am
RKS
-
PHX
4h 33m
1 stop
$418United Airlines
Tue, Apr 28 - Sat, May 2
United Airlines Logo
4:34 pm - 10:15 pm
PHX
-
RKS
4h 41m
1 stop
United Airlines Logo
5:15 am - 2:40 pm
RKS
-
PHX
10h 25m
2 stops
$424United Airlines
Tue, Apr 28 - Sat, May 2
United Airlines Logo
1:30 pm - 10:15 pm
PHX
-
RKS
7h 45m
2 stops
United Airlines Logo
2:15 pm - 11:13 pm
RKS
-
PHX
9h 58m
2 stops
$429United Airlines
Booking Insights

Good to know

Cheapest flight$318
Flight from Phoenix to Rock Springs

When to book flights from Phoenix to Rock Springs

Are your dates flexible? Find out the best times to travel from Phoenix to Rock Springs based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Phoenix to Rock Springs flights

  • What is the cheapest flight from Phoenix Sky Harbor Intl Airport to Rock Springs?

    In the last 3 days, the lowest price for a flight from Phoenix Sky Harbor Intl Airport to Rock Springs was $318 for a round-trip ticket.

  • Do I need a passport to fly between Phoenix and Rock Springs?

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which aircraft models fly most regularly from Phoenix to Rock Springs?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Phoenix to Rock Springs?

    Star Alliance is the only airline alliance operating flights between Phoenix and Rock Springs.

  • How does KAYAK find such low prices on flights from Phoenix to Rock Springs?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Phoenix to Rock Springs.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Phoenix to Rock Springs?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Rock Springs from Phoenix is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Phoenix to Rock Springs?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Rock Springs with an airline and back to Phoenix with another airline. Booking your flights between Phoenix and RKS can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Phoenix to Rock Springs?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Rock Springs from Phoenix up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Phoenix to Rock Springs

 
See real verified KAYAK customer reviews for airlines flying from Phoenix to Rock Springs. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Phoenix to Rock Springs? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9551 reviews
7.7Boarding
7.3Comfort
7.1Entertainment
6.6Food
8.1Crew
Airline reviews

Boarding was again a "free for all". We were boarding group 4, and almost the entire plane was able to board before us. It's a shame that someone who follows the rules, gets the short end of the stick. Not fair.

6.0 GoodLawrence, Apr 2026
SFO - IAH
Read more United Airlines reviews

Boarding was again a "free for all". We were boarding group 4, and almost the entire plane was able to board before us. It's a shame that someone who follows the rules, gets the short end of the stick. Not fair.

Flight left on time, arrived early, pleasant staff provided water, coffee, etc. access to bathrooms was reasonable and were well maintained. blankets were available, lots of entertainment options. LUGGAGE SERVICE WAS GREAT. I got my one checked bag quickly and was able to make a bus connection for a 2 hour bus ride saving me from waiting another 1.5 hours.

The boarding process was straightforward. One pertinent observation regarding all boarding procedures is that if an individual requires assistance or possesses a special status and is part of preboarding, it is advisable to limit the number of passengers who can preboard with them, rather than the entire, sometimes large, companion groups. The seats are uncomfortable, and the entertainment options are significantly inferior compared to other airlines. During the snack service, I requested an additional bag of snacks, but my request was denied. Initially, the flight attendant agreed to my request.becoming a strange accurate moment. The flight duration was four hours.

The flight was officially delayed 3 times, and was actually later than that. Combined, it was a 3 hour delay, but there was no recognition (miles, voucher, etc). The crew seemed stressed. The captain sounded nervous in his announcements. The flight itself was smooth and uneventful.

United didn’t even try to hold the flight for me. They knew I had a tight connection and when I arrived at the gate less than 10 mins after final boarding the flight had already gone. The gate agent wasn’t even notified that I was on my way. She was told I wasn’t at the airport

It was perfect! I've never flown with United before, but I definitely will in the future

I had a cancelled flight because of technical issues going to my destination, and a delayed flight coming home. All told it wasn’t a total bust.

Just a bad day to fly. Flight was delayed from scheduled 6:50 pm departure to 8:50 pm. Combination of factors mostly related to weather at the destination airport (which is where the incoming flight originated) which delayed the inbound flight over an hour. Once on board, we taxied but had to hold again on the taxiway for 10 minutes or so. We did not get wheels up until after 9 pm. The flight was smooth but about 18 minutes from our destination, we had to hold for several minutes more due to weather at ORD. We finally landed at ORD about 11:08 pm (accounting for the time difference, that was about a 3 hour delay from our scheduled departure time). It felt like we were never going to get to our destination. But the flight crew and attendants were very good. The movie selection onboard was also very nice. Got to watch half of a movie just during our taxi from the gate at ATL due to the delay!

Fine. The issues I had were associated with luggage being delayed from Turkey to Tanzania

No meal service to the back of the plane as it started late or was too slow to get it out before it was time to land.

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

Information on your arrival and departure airports