PHX - RKS

$355 Find Cheap Flights from Phoenix to Rock Springs - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$388
Typical prices: $328-$552
United Airlines
Wed 9/19Fri 9/21
PHX - RKS • 1 stop
Cheapest one-way
$355
Typical prices: $418-$418
United Airlines
Tue 9/25
PHX - RKS • 2 stops
When to travel
October
Cheapest • 15% price drop
October
Most popular
Good to know
+1
Good to know
+1
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Cheap Flights from Phoenix to Rock Springs (PHX-RKS)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Phoenix to Rock Springs

Sat, Sep 19 - Mon, Sep 21
United Airlines Logo
4:49 pm - 10:21 pmPHX  Phoenix Sky Harbor Intl-RKS Rock Springs Sweetwater County
4h 32m1 stop Denver Intl
United Airlines Logo
2:22 pm - 8:24 pmRKS  Rock Springs Sweetwater County-PHX Phoenix Sky Harbor Intl
7h 02m1 stop Denver Intl
$388United Airlines
Sat, Sep 19 - Mon, Sep 21
United Airlines Logo
1:34 pm - 10:21 pmPHX  Phoenix Sky Harbor Intl-RKS Rock Springs Sweetwater County
7h 47m1 stop Denver Intl
United Airlines Logo
5:05 am - 8:30 pmRKS  Rock Springs Sweetwater County-PHX Phoenix Sky Harbor Intl
16h 25m2 stops Denver Intl Los Angeles
$394United Airlines
Sat, Sep 19 - Mon, Sep 21
United Airlines Logo
8:50 am - 10:21 pmPHX  Phoenix Sky Harbor Intl-RKS Rock Springs Sweetwater County
12h 31m2 stops San Francisco Denver Intl
United Airlines Logo
2:22 pm - 8:24 pmRKS  Rock Springs Sweetwater County-PHX Phoenix Sky Harbor Intl
7h 02m1 stop Denver Intl
$394United Airlines
Sat, Sep 19 - Mon, Sep 21
United Airlines Logo
7:00 am - 10:21 pmPHX  Phoenix Sky Harbor Intl-RKS Rock Springs Sweetwater County
14h 21m2 stops San Francisco Denver Intl
United Airlines Logo
5:05 am - 8:30 pmRKS  Rock Springs Sweetwater County-PHX Phoenix Sky Harbor Intl
16h 25m2 stops Denver Intl Los Angeles
$399United Airlines
Sat, Sep 19 - Mon, Sep 21
United Airlines Logo
4:49 pm - 10:21 pmPHX  Phoenix Sky Harbor Intl-RKS Rock Springs Sweetwater County
4h 32m1 stop Denver Intl
United Airlines Logo
2:22 pm - 8:24 pmRKS  Rock Springs Sweetwater County-PHX Phoenix Sky Harbor Intl
7h 02m1 stop Denver Intl
$403United Airlines
Sat, Sep 19 - Mon, Sep 21
United Airlines Logo
1:34 pm - 10:21 pmPHX  Phoenix Sky Harbor Intl-RKS Rock Springs Sweetwater County
7h 47m1 stop Denver Intl
United Airlines Logo
5:05 am - 8:30 pmRKS  Rock Springs Sweetwater County-PHX Phoenix Sky Harbor Intl
16h 25m2 stops Denver Intl Los Angeles
$409United Airlines
Booking Insights

Price, demand and travel trends for Phoenix Sky Harbor Intl Airport to Rock Springs flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from Phoenix Sky Harbor Intl Airport to Rock Springs with more confidence.

How much is a round-trip flight from Phoenix Sky Harbor Intl Airport to Rock Springs?

Round-trip flights from Phoenix Sky Harbor Intl Airport to Rock Springs start at $388. Prices are typical for this route right now, with typical round-trip fares ranging from $328 to $552. The lowest price found in the past 5 days was $388 on United Airlines.

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Key details for Phoenix Sky Harbor Intl Airport to Rock Springs flights

Low season

January

Cheapest flight

$355
Most popular time to fly and prices are also 15% lower on average.
Flight from Phoenix Sky Harbor Intl Airport 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

Your Phoenix Sky Harbor Intl Airport to Rock Springs flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • Which airports can I use when flying from Phoenix Sky Harbor Intl Airport to Rock Springs?

    Flights from Phoenix Sky Harbor Intl Airport to Rock Springs usually depart from Phoenix Sky Harbor Intl (PHX) and arrive at Rock Springs Sweetwater County (RKS).

  • What cabin classes can I book on flights from Phoenix Sky Harbor Intl Airport to Rock Springs?

    Only Economy Class is available on flights from Phoenix Sky Harbor Intl Airport to Rock Springs.

  • Which airports do connecting flights from Phoenix Sky Harbor Intl Airport to Rock Springs pass through?

    Most connecting flights from Phoenix Sky Harbor Intl Airport to Rock Springs pass through Denver Intl (DEN), which handles 100% of one-stop traffic on this route. Other layover airports each see under 5%.

  • Can I save money by using flexible dates for flights from Phoenix Sky Harbor Intl Airport to Rock Springs?

    Yes. Being flexible with your travel dates can save you up to 57% on the Phoenix Sky Harbor Intl Airport to Rock Springs route. Friday is the cheapest departure day at $328 round-trip on average, while Sunday is the most expensive at $758, a difference of $430. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • Do I need a passport to fly from Phoenix Sky Harbor Intl Airport to Rock Springs?

    No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

  • Have flight prices from Phoenix Sky Harbor Intl Airport to Rock Springs changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route varied from about $388 to $524. That means the highest observed fare was about 35% higher than the lowest one.

  • How are flight prices from Phoenix Sky Harbor Intl Airport to Rock Springs looking right now?

    One-way fares from Phoenix Sky Harbor Intl Airport to Rock Springs are currently in line with typical prices for this route. Average one-way fares are about $413.

  • What is the time difference between Phoenix Sky Harbor Intl Airport and Rock Springs?

    Rock Springs is 1 hour ahead of Phoenix Sky Harbor Intl Airport (Mountain Time vs Mountain Time). Plan for the time shift when scheduling connections or first-day activities.

  • How much should I expect to pay for a Phoenix Sky Harbor Intl Airport to Rock Springs flight?

    Round-trip flights from Phoenix Sky Harbor Intl Airport to Rock Springs range from $328 to $552, with an average of $388 over the past 12 months. Anything below $328 counts as a good deal.

Your guide to booking Phoenix Sky Harbor Intl Airport to Rock Springs flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates can be flexible, aim for a Friday departure instead of Sunday. On this route, Friday flights average $328 - about $430 less than Sunday (57% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Phoenix Sky Harbor Intl Airport to Rock Springs trip for October. Fares historically average $328 round-trip in that month - typically $430 less than the most expensive month, which is March (based on the last 12 months).

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

Information on your arrival and departure airports

Phoenix (PHX)
Rock Springs (RKS)