How do I get Price Alerts for flights from Portland to Rock Springs?

Confirm your travel details to search for the latest offers for flights from Portland to Rock Springs . While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

How can I save money on flights from Portland to Rock Springs with momondo?

Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore” . Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.

How does momondo find its flight prices?

We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

When did momondo last update prices for flights from Portland Airport to Rock Springs Sweetwater County Airport?

Prices for flights from Portland Airport to Rock Springs Sweetwater County Airport were last updated today.

How old do you have to be to fly from Portland Airport to Rock Springs Sweetwater County Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Portland Airport to Rock Springs Sweetwater County Airport.

What documentation or ID do you need to fly to Rock Springs Sweetwater County Airport?

The required travel and health documents for your Rock Springs Sweetwater County Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Rock Springs Sweetwater County Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$258 Cheap Flights from Portland to Rock Springs in 2025/26

1 adult

0 bags

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Find the cheapest flights from Portland to Rock Springs

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Cheap round-trip flights

Enter your travel dates to find the best prices.

5:00 am - 1:28 pm

PDX

RKS

7h 28m1 stop

5:15 am - 2:55 pm

RKS

PDX

10h 40m2 stops

$264United Airlines

Tue, Jan 20 - Tue, Jan 27

5:05 am - 1:33 pm

PDX

RKS

7h 28m1 stop

5:15 am - 9:42 am

RKS

PDX

5h 27m1 stop

$328United Airlines

Wed, Feb 18 - Sat, Feb 21

1:40 pm - 10:13 pm

PDX

RKS

7h 33m2 stops

5:15 am - 9:42 am

RKS

PDX

5h 27m1 stop

$334United Airlines

Wed, Feb 18 - Sat, Feb 21

7:45 am - 10:15 pm

PDX

RKS

13h 30m2 stops

5:15 am - 12:41 pm

RKS

PDX

8h 26m2 stops

$374United Airlines

Tue, Jan 20 - Tue, Jan 27

1:24 pm - 1:28 pm

PDX

RKS

23h 04m1 stop

5:15 am - 1:45 pm

RKS

PDX

9h 30m1 stop

$392United Airlines

Tue, Jan 20 - Tue, Jan 27

1:40 pm - 10:13 pm

PDX

RKS

7h 33m2 stops

2:10 pm - 11:09 pm

RKS

PDX

9h 59m2 stops

$429United Airlines

Wed, Feb 18 - Sat, Feb 21

3:50 pm - 1:33 pm

PDX

RKS

20h 43m3 stops

5:15 am - 9:42 am

RKS

PDX

5h 27m1 stop

$462United Airlines

Wed, Feb 18 - Sat, Feb 21

United Airlines flights from Portland to Rock Springs

Our best United Airlines deals on Portland to Rock Springs flight tickets

United Airlines

Jan 20

PDX5:00 amPortland

7h 28m

1 stop

RKS1:28 pmRock Springs Sweetwater County

Jan 27

RKS5:15 amRock Springs Sweetwater County

10h 40m

2 stops

PDX2:55 pmPortland

$264

Find similar

United Airlines

Feb 18

PDX5:05 amPortland

7h 28m

1 stop

RKS1:33 pmRock Springs Sweetwater County

Feb 21

RKS5:15 amRock Springs Sweetwater County

5h 27m

1 stop

PDX9:42 amPortland

$328

Find similar

United Airlines

Feb 18

PDX1:40 pmPortland

7h 33m

2 stops

RKS10:13 pmRock Springs Sweetwater County

Feb 21

RKS5:15 amRock Springs Sweetwater County

5h 27m

1 stop

PDX9:42 amPortland

$334

Find similar

Fly from

Fly to

Route

Depart

Return

Price

PortlandRock Springs

PDX - RKS

PDXRKS

Portland

Tue 1/20

5:00 am-1:28 pm

1 stop7h 28m

Rock Springs Sweetwater County

Tue 1/27

5:15 am-2:55 pm

2 stops10h 40m

$264

PortlandRock Springs

PDX - RKS

PDXRKS

Portland

Wed 2/18

5:05 am-1:33 pm

1 stop7h 28m

Rock Springs Sweetwater County

Sat 2/21

5:15 am-9:42 am

1 stop5h 27m

$328

PortlandRock Springs

PDX - RKS

PDXRKS

Portland

Wed 2/18

1:40 pm-10:13 pm

2 stops7h 33m

Rock Springs Sweetwater County

Sat 2/21

5:15 am-9:42 am

1 stop5h 27m

$334

PortlandRock Springs

PDX - RKS

PDXRKS

Portland

Tue 1/20

7:45 am-10:15 pm

2 stops13h 30m

Rock Springs Sweetwater County

Tue 1/27

5:15 am-12:41 pm

2 stops8h 26m

$374

PortlandRock Springs

PDX - RKS

PDXRKS

Portland

Tue 1/20

1:24 pm-1:28 pm

1 stop23h 04m

Rock Springs Sweetwater County

Tue 1/27

5:15 am-1:45 pm

1 stop9h 30m

$392

PortlandRock Springs

PDX - RKS

PDXRKS

Portland

Wed 2/18

1:40 pm-10:13 pm

2 stops7h 33m

Rock Springs Sweetwater County

Sat 2/21

2:10 pm-11:09 pm

2 stops9h 59m

$429

PortlandRock Springs

PDX - RKS

PDXRKS

Portland

Wed 2/18

3:50 pm-1:33 pm

3 stops20h 43m

Rock Springs Sweetwater County

Sat 2/21

5:15 am-9:42 am

1 stop5h 27m

$462

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

When to book flights from Portland to Rock Springs

Are you open to changing your travel dates? Check out the ideal times to fly from Portland to Rock Springs according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Portland to Rock Springs (PDX to RKS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland to Rock Springs

Fastest flight time	7h 28m
Direct flights	None

The fastest flight from Portland to Rock Springs takes 7h 28m

There are no direct flights from Portland to Rock Springs. There are no popular flight routes from Portland to Rock Springs.

Search flight deals

How far is Portland to Rock Springs Sweetwater County by plane?
Portland and Rock Springs Sweetwater County are 725.7 mi apart from one another. By plane, this route typically takes 7h 28m.
When did momondo last update prices for flights from Portland Airport to Rock Springs Sweetwater County Airport?
Prices for flights from Portland Airport to Rock Springs Sweetwater County Airport were last updated today.
How old do you have to be to fly from Portland Airport to Rock Springs Sweetwater County Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Portland Airport to Rock Springs Sweetwater County Airport.
What documentation or ID do you need to fly to Rock Springs Sweetwater County Airport?
The required travel and health documents for your Rock Springs Sweetwater County Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Rock Springs Sweetwater County Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

How do I get Price Alerts for flights from Portland to Rock Springs?
Confirm your travel details to search for the latest offers for flights from Portland to Rock Springs. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.
How can I save money on flights from Portland to Rock Springs with momondo?
Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore”. Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.
How does momondo find its flight prices?
We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

Green River

Why use momondo?

Why should I use momondo to find a flight deal from Portland to Rock Springs?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Rock Springs from Portland.

Can I find flights from Portland to Rock Springs with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Rock Springs from Portland with this policy.

How can momondo help me find flights from Portland to Rock Springs?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Rock Springs from Portland.

I’m not ready to book a flight from Portland to Rock Springs right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Rock Springs from Portland. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.