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 June 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.

$298 Cheap Flights from Rock Springs to Washington in 2026

Discover deals from 900+ travel sites with momondo.

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.

5:25 am - 9:46 am

RKS

SEA

5h 21m

1 stop

3:02 pm - 10:01 pm

SEA

RKS

5h 59m

1 stop

$298United Airlines

Tue, Oct 27 - Sat, Oct 31

5:25 am - 9:46 am

RKS

SEA

5h 21m

1 stop

8:50 am - 10:01 pm

SEA

RKS

12h 11m

2 stops

$304United Airlines

Tue, Oct 27 - Sat, Oct 31

2:05 pm - 11:16 pm

RKS

SEA

10h 11m

2 stops

10:45 am - 10:01 pm

SEA

RKS

10h 16m

2 stops

$309United Airlines

Tue, Oct 27 - Sat, Oct 31

2:05 pm - 9:23 pm

RKS

SEA

8h 18m

1 stop

3:02 pm - 10:01 pm

SEA

RKS

5h 59m

1 stop

$378United Airlines

Tue, Oct 27 - Sat, Oct 31

2:05 pm - 1:01 am

RKS

SEA

11h 56m

2 stops

3:02 pm - 10:01 pm

SEA

RKS

5h 59m

1 stop

$384United Airlines

Tue, Oct 27 - Sat, Oct 31

2:05 pm - 1:01 am

RKS

SEA

11h 56m

2 stops

1:16 pm - 10:01 pm

SEA

RKS

7h 45m

2 stops

$389United Airlines

Tue, Oct 27 - Sat, Oct 31

5:05 am - 10:00 am

RKS

SEA

5h 55m

1 stop

3:54 pm - 10:21 pm

SEA

RKS

5h 27m

1 stop

$393United Airlines

Tue, Aug 4 - Thu, Aug 13

2:16 pm - 11:10 pm

RKS

SEA

9h 54m

1 stop

6:08 am - 10:21 pm

SEA

RKS

15h 13m

2 stops

$399United Airlines

Mon, Aug 3 - Thu, Aug 13

5:05 am - 7:03 pm

RKS

SEA

14h 58m

2 stops

5:00 am - 1:31 pm

SEA

RKS

7h 31m

1 stop

$414United Airlines

Fri, Jul 3 - Mon, Jul 6

5:05 am - 8:53 pm

RKS

SEA

16h 48m

2 stops

6:00 am - 10:23 pm

SEA

RKS

15h 23m

2 stops

$419United Airlines

Fri, Jul 3 - Mon, Jul 6

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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

Oct 27

RKS5:25 amRock Springs Sweetwater County

5h 21m

1 stop

SEA9:46 amSeattle/Tacoma Intl

Oct 31

SEA3:02 pmSeattle/Tacoma Intl

5h 59m

1 stop

RKS10:01 pmRock Springs Sweetwater County

$298

United Airlines

Oct 27

RKS5:25 amRock Springs Sweetwater County

5h 21m

1 stop

SEA9:46 amSeattle/Tacoma Intl

Oct 31

SEA8:50 amSeattle/Tacoma Intl

12h 11m

2 stops

RKS10:01 pmRock Springs Sweetwater County

$304

United Airlines

Oct 27

RKS2:05 pmRock Springs Sweetwater County

10h 11m

2 stops

SEA11:16 pmSeattle/Tacoma Intl

Oct 31

SEA10:45 amSeattle/Tacoma Intl

10h 16m

2 stops

RKS10:01 pmRock Springs Sweetwater County

$309

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

Tue 10/27

5:25 am-9:46 am

1 stop5h 21m

Seattle/Tacoma Intl

Sat 10/31

3:02 pm-10:01 pm

1 stop5h 59m

$298

Rock SpringsSeattle

RKS - SEA

RKSSEA

Rock Springs Sweetwater County

Tue 10/27

5:25 am-9:46 am

1 stop5h 21m

Seattle/Tacoma Intl

Sat 10/31

8:50 am-10:01 pm

2 stops12h 11m

$304

Rock SpringsSeattle

RKS - SEA

RKSSEA

Rock Springs Sweetwater County

Tue 10/27

2:05 pm-11:16 pm

2 stops10h 11m

Seattle/Tacoma Intl

Sat 10/31

10:45 am-10:01 pm

2 stops10h 16m

$309

Rock SpringsSeattle

RKS - SEA

RKSSEA

Rock Springs Sweetwater County

Tue 10/27

2:05 pm-9:23 pm

1 stop8h 18m

Seattle/Tacoma Intl

Sat 10/31

3:02 pm-10:01 pm

1 stop5h 59m

$378

Rock SpringsSeattle

RKS - SEA

RKSSEA

Rock Springs Sweetwater County

Tue 10/27

2:05 pm-1:01 am

2 stops11h 56m

Seattle/Tacoma Intl

Sat 10/31

3:02 pm-10:01 pm

1 stop5h 59m

$384

Rock SpringsSeattle

RKS - SEA

RKSSEA

Rock Springs Sweetwater County

Tue 10/27

2:05 pm-1:01 am

2 stops11h 56m

Seattle/Tacoma Intl

Sat 10/31

1:16 pm-10:01 pm

2 stops7h 45m

$389

Rock SpringsSeattle

RKS - SEA

RKSSEA

Rock Springs Sweetwater County

Tue 8/4

5:05 am-10:00 am

1 stop5h 55m

Seattle/Tacoma Intl

Thu 8/13

3:54 pm-10:21 pm

1 stop5h 27m

$393

Rock SpringsSeattle

RKS - SEA

RKSSEA

Rock Springs Sweetwater County

Mon 8/3

2:16 pm-11:10 pm

1 stop9h 54m

Seattle/Tacoma Intl

Thu 8/13

6:08 am-10:21 pm

2 stops15h 13m

$399

Rock SpringsSeattle

RKS - SEA

RKSSEA

Rock Springs Sweetwater County

Fri 7/3

5:05 am-7:03 pm

2 stops14h 58m

Seattle/Tacoma Intl

Mon 7/6

5:00 am-1:31 pm

1 stop7h 31m

$414

Rock SpringsSeattle

RKS - SEA

RKSSEA

Rock Springs Sweetwater County

Fri 7/3

5:05 am-8:53 pm

2 stops16h 48m

Seattle/Tacoma Intl

Mon 7/6

6:00 am-10:23 pm

2 stops15h 23m

$419

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	8h 18m
Direct flights	None

The fastest flight from Rock Springs to State of Washington takes 8h 18m

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

Frequently asked questions about flying from Rock Springs to Washington

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 June 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 9,868 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.