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

Prices for flights from Rock Springs Sweetwater County Airport to Washington are updated daily.

How many operators does momondo search for flights from Rock Springs Sweetwater County Airport to Washington?

The number of operators available for flights from Rock Springs Sweetwater County Airport to Washington is 1 as of March 2026.

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

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Rock Springs Sweetwater County Airport to Washington.

What documentation or ID do you need to fly to Washington?

The required travel and health documents for your Washington 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 Washington. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$328 Cheap Flights from Rock Springs to Washington in 2026

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Find the cheapest flights from Rock Springs to Washington

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

5:15 am - 9:46 am

RKS

SEA

5h 31m

1 stop

3:48 pm - 10:15 pm

SEA

RKS

5h 27m

1 stop

$328United Airlines

Fri, Apr 3 - Tue, Apr 7

2:16 pm - 1:13 am

RKS

SEA

11h 57m

2 stops

2:33 pm - 10:15 pm

SEA

RKS

6h 42m

1 stop

$343United Airlines

Sat, Jul 18 - Wed, Jul 22

2:15 pm - 9:06 pm

RKS

SEA

7h 51m

1 stop

3:48 pm - 10:15 pm

SEA

RKS

5h 27m

1 stop

$358United Airlines

Fri, Apr 3 - Tue, Apr 7

2:15 pm - 10:56 pm

RKS

SEA

9h 41m

1 stop

5:05 am - 1:30 pm

SEA

RKS

7h 25m

1 stop

$388United Airlines

Wed, Apr 29 - Sat, May 2

2:15 pm - 11:27 pm

RKS

SEA

10h 12m

2 stops

5:05 am - 1:30 pm

SEA

RKS

7h 25m

1 stop

$394United Airlines

Wed, Apr 29 - Sat, May 2

2:15 pm - 9:06 pm

RKS

SEA

7h 51m

1 stop

5:02 am - 1:30 pm

SEA

RKS

7h 28m

1 stop

$398United Airlines

Tue, May 5 - Sat, May 9

5:15 am - 9:46 pm

RKS

SEA

17h 31m

2 stops

8:45 am - 10:15 pm

SEA

RKS

12h 30m

2 stops

$399United Airlines

Wed, Apr 29 - Sat, May 2

2:15 pm - 1:12 am

RKS

SEA

11h 57m

2 stops

5:02 am - 1:30 pm

SEA

RKS

7h 28m

1 stop

$404United Airlines

Tue, May 5 - Sat, May 9

5:15 am - 9:46 am

RKS

SEA

5h 31m

1 stop

3:48 pm - 10:15 pm

SEA

RKS

5h 27m

1 stop

$407United Airlines

Fri, Apr 17 - Sun, Apr 19

2:15 pm - 1:12 am

RKS

SEA

11h 57m

2 stops

8:38 am - 10:15 pm

SEA

RKS

12h 37m

2 stops

$409United Airlines

Tue, May 5 - Sat, May 9

United Airlines flights from Rock Springs to State of Washington

Our best United Airlines deals on Rock Springs to State of Washington flight tickets

United Airlines

Apr 3

RKS5:15 amRock Springs Sweetwater County

5h 31m

1 stop

SEA9:46 amSeattle/Tacoma Intl

Apr 7

SEA3:48 pmSeattle/Tacoma Intl

5h 27m

1 stop

RKS10:15 pmRock Springs Sweetwater County

$328

United Airlines

Jul 18

RKS2:16 pmRock Springs Sweetwater County

11h 57m

2 stops

SEA1:13 amSeattle/Tacoma Intl

Jul 22

SEA2:33 pmSeattle/Tacoma Intl

6h 42m

1 stop

RKS10:15 pmRock Springs Sweetwater County

$343

United Airlines

Apr 3

RKS2:15 pmRock Springs Sweetwater County

7h 51m

1 stop

SEA9:06 pmSeattle/Tacoma Intl

Apr 7

SEA3:48 pmSeattle/Tacoma Intl

5h 27m

1 stop

RKS10:15 pmRock Springs Sweetwater County

$358

momondo Fare Finder

Use the filters below to find and compare flights from Rock Springs to Washington that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

Rock SpringsSeattle

RKS - SEA

RKSSEA

Rock Springs Sweetwater County

Fri 4/3

5:15 am-9:46 am

1 stop5h 31m

Seattle/Tacoma Intl

Tue 4/7

3:48 pm-10:15 pm

1 stop5h 27m

$328

Rock SpringsSeattle

RKS - SEA

RKSSEA

Rock Springs Sweetwater County

Sat 7/18

2:16 pm-1:13 am

2 stops11h 57m

Seattle/Tacoma Intl

Wed 7/22

2:33 pm-10:15 pm

1 stop6h 42m

$343

Rock SpringsSeattle

RKS - SEA

RKSSEA

Rock Springs Sweetwater County

Fri 4/3

2:15 pm-9:06 pm

1 stop7h 51m

Seattle/Tacoma Intl

Tue 4/7

3:48 pm-10:15 pm

1 stop5h 27m

$358

Rock SpringsSeattle

RKS - SEA

RKSSEA

Rock Springs Sweetwater County

Wed 4/29

2:15 pm-10:56 pm

1 stop9h 41m

Seattle/Tacoma Intl

Sat 5/2

5:05 am-1:30 pm

1 stop7h 25m

$388

Rock SpringsSeattle

RKS - SEA

RKSSEA

Rock Springs Sweetwater County

Wed 4/29

2:15 pm-11:27 pm

2 stops10h 12m

Seattle/Tacoma Intl

Sat 5/2

5:05 am-1:30 pm

1 stop7h 25m

$394

Rock SpringsSeattle

RKS - SEA

RKSSEA

Rock Springs Sweetwater County

Tue 5/5

2:15 pm-9:06 pm

1 stop7h 51m

Seattle/Tacoma Intl

Sat 5/9

5:02 am-1:30 pm

1 stop7h 28m

$398

Rock SpringsSeattle

RKS - SEA

RKSSEA

Rock Springs Sweetwater County

Wed 4/29

5:15 am-9:46 pm

2 stops17h 31m

Seattle/Tacoma Intl

Sat 5/2

8:45 am-10:15 pm

2 stops12h 30m

$399

Rock SpringsSeattle

RKS - SEA

RKSSEA

Rock Springs Sweetwater County

Tue 5/5

2:15 pm-1:12 am

2 stops11h 57m

Seattle/Tacoma Intl

Sat 5/9

5:02 am-1:30 pm

1 stop7h 28m

$404

Rock SpringsSeattle

RKS - SEA

RKSSEA

Rock Springs Sweetwater County

Fri 4/17

5:15 am-9:46 am

1 stop5h 31m

Seattle/Tacoma Intl

Sun 4/19

3:48 pm-10:15 pm

1 stop5h 27m

$407

Rock SpringsSeattle

RKS - SEA

RKSSEA

Rock Springs Sweetwater County

Tue 5/5

2:15 pm-1:12 am

2 stops11h 57m

Seattle/Tacoma Intl

Sat 5/9

8:38 am-10:15 pm

2 stops12h 37m

$409

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first

How to get the cheapest flight ticket from Rock Springs to State of Washington

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Rock Springs Sweetwater County to Washington?

United Airlines is the most popular carrier operating from Rock Springs Sweetwater County to Washington

Cheap Rock Springs to State of Washington flight deals and tips

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

Fastest flight time	5h 31m
Direct flights	None

The fastest flight from Rock Springs to State of Washington takes 5h 31m

There are no direct flights from Rock Springs to State of Washington. There are no popular flight routes from Rock Springs to State of Washington.

Search flight deals

When did momondo last update prices for flights from Rock Springs Sweetwater County Airport to Washington?
Prices for flights from Rock Springs Sweetwater County Airport to Washington are updated daily.
How many operators does momondo search for flights from Rock Springs Sweetwater County Airport to Washington?
The number of operators available for flights from Rock Springs Sweetwater County Airport to Washington is 1 as of March 2026.
How old do you have to be to fly from Rock Springs Sweetwater County Airport to Washington?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Rock Springs Sweetwater County Airport to Washington.
What documentation or ID do you need to fly to Washington?
The required travel and health documents for your Washington 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 Washington. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Rock Springs to State of Washington

Compare and see reviews for airlines that fly from Rock Springs to State of Washington with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $238	Free Cancellation	Rating 7.4 9,460 reviews		Search United Airlines flights

Why use momondo?

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

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 Washington from Rock Springs.

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

Yes. momondo allows you to filter the results for Rock Springs to Washington flights to just show those with flexible booking policies.

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

momondo helps you find the best flight between Rock Springs and Washington by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

If you are simply researching potential flights to Washington, momondo offers a useful price alert feature which will track prices for flights to Washington from Rock Springs and alert you when they change.