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Cheap flights from Rock Springs to Washington from $308

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Rock Springs to Washington departing on 2/28. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Cheap round-trip flights

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United Airlines Logo
2:10 pm - 9:14 pmRKS-SEA
8h 04m1 stop
United Airlines Logo
3:16 pm - 10:13 pmSEA-RKS
5h 57m1 stop
$308United Airlines
Find Deal
Sat, Feb 28 - Tue, Mar 3
United Airlines Logo
2:10 pm - 12:59 amRKS-SEA
11h 49m2 stops
United Airlines Logo
3:16 pm - 10:13 pmSEA-RKS
5h 57m1 stop
$314United Airlines
Find Deal
Sat, Feb 28 - Tue, Mar 3
United Airlines Logo
2:10 pm - 12:59 amRKS-SEA
11h 49m2 stops
United Airlines Logo
9:19 am - 10:13 pmSEA-RKS
11h 54m2 stops
$319United Airlines
Find Deal
Sat, Feb 28 - Tue, Mar 3
United Airlines Logo
5:15 am - 9:01 pmRKS-SEA
16h 46m3 stops
United Airlines Logo
9:19 am - 10:13 pmSEA-RKS
11h 54m2 stops
$369United Airlines
Find Deal
Sat, Feb 28 - Tue, Mar 3
United Airlines Logo
2:10 pm - 9:14 pmRKS-SEA
8h 04m1 stop
United Airlines Logo
9:00 am - 1:33 pmSEA-RKS
27h 33m1 stop
$377United Airlines
Find Deal
Sat, Feb 28 - Tue, Mar 3
United Airlines Logo
2:10 pm - 11:30 pmRKS-SEA
10h 20m2 stops
United Airlines Logo
9:00 am - 1:33 pmSEA-RKS
27h 33m1 stop
$383United Airlines
Find Deal
Sat, Feb 28 - Tue, Mar 3
United Airlines Logo
2:10 pm - 12:59 amRKS-SEA
11h 49m2 stops
United Airlines Logo
5:20 pm - 10:13 pmSEA-RKS
27h 53m2 stops
$397United Airlines
Find Deal
Sat, Feb 28 - Tue, Mar 3
United Airlines Logo
5:15 am - 9:01 pmRKS-SEA
16h 46m3 stops
United Airlines Logo
5:20 pm - 1:33 pmSEA-RKS
19h 13m2 stops
$447United Airlines
Find Deal
Sat, Feb 28 - Tue, Mar 3

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
Feb 28
RKS2:10 pmRock Springs Sweetwater County
8h 04m
1 stop
SEA9:14 pmSeattle/Tacoma Intl
Mar 3
SEA3:16 pmSeattle/Tacoma Intl
5h 57m
1 stop
RKS10:13 pmRock Springs Sweetwater County
$308
Find similar
United Airlines
Feb 28
RKS2:10 pmRock Springs Sweetwater County
11h 49m
2 stops
SEA12:59 amSeattle/Tacoma Intl
Mar 3
SEA3:16 pmSeattle/Tacoma Intl
5h 57m
1 stop
RKS10:13 pmRock Springs Sweetwater County
$314
Find similar
United Airlines
Feb 28
RKS2:10 pmRock Springs Sweetwater County
11h 49m
2 stops
SEA12:59 amSeattle/Tacoma Intl
Mar 3
SEA9:19 amSeattle/Tacoma Intl
11h 54m
2 stops
RKS10:13 pmRock Springs Sweetwater County
$319
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Rock Springs to State of Washington that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated November 8, 2025.
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

Rock SpringsSeattle

RKS - SEA

RKSSEA

Rock Springs Sweetwater County

Sat 2/28

2:10 pm-9:14 pm

1 stop8h 04m

Seattle/Tacoma Intl

Tue 3/3

3:16 pm-10:13 pm

1 stop5h 57m

$308

Rock SpringsSeattle

RKS - SEA

RKSSEA

Rock Springs Sweetwater County

Sat 2/28

2:10 pm-12:59 am

2 stops11h 49m

Seattle/Tacoma Intl

Tue 3/3

3:16 pm-10:13 pm

1 stop5h 57m

$314

Rock SpringsSeattle

RKS - SEA

RKSSEA

Rock Springs Sweetwater County

Sat 2/28

2:10 pm-12:59 am

2 stops11h 49m

Seattle/Tacoma Intl

Tue 3/3

9:19 am-10:13 pm

2 stops11h 54m

$319

Rock SpringsSeattle

RKS - SEA

RKSSEA

Rock Springs Sweetwater County

Sat 2/28

5:15 am-9:01 pm

3 stops16h 46m

Seattle/Tacoma Intl

Tue 3/3

9:19 am-10:13 pm

2 stops11h 54m

$369

Rock SpringsSeattle

RKS - SEA

RKSSEA

Rock Springs Sweetwater County

Sat 2/28

2:10 pm-9:14 pm

1 stop8h 04m

Seattle/Tacoma Intl

Tue 3/3

9:00 am-1:33 pm

1 stop27h 33m

$377

Rock SpringsSeattle

RKS - SEA

RKSSEA

Rock Springs Sweetwater County

Sat 2/28

2:10 pm-11:30 pm

2 stops10h 20m

Seattle/Tacoma Intl

Tue 3/3

9:00 am-1:33 pm

1 stop27h 33m

$383

Rock SpringsSeattle

RKS - SEA

RKSSEA

Rock Springs Sweetwater County

Sat 2/28

2:10 pm-12:59 am

2 stops11h 49m

Seattle/Tacoma Intl

Tue 3/3

5:20 pm-10:13 pm

2 stops27h 53m

$397

Rock SpringsSeattle

RKS - SEA

RKSSEA

Rock Springs Sweetwater County

Sat 2/28

5:15 am-9:01 pm

3 stops16h 46m

Seattle/Tacoma Intl

Tue 3/3

5:20 pm-1:33 pm

2 stops19h 13m

$447

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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

Direct flights

None
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.
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  • 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 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.

  • How do I get Price Alerts for flights from Rock Springs to State of Washington?

    Search flight deals from Rock Springs to State of Washington. While viewing offers you’ll have the option to create a Price Alert.

  • How can I save money on flights from Rock Springs to State of Washington with momondo?

    Leverage our AI within our “Price Forecast” tool, which predicts if it’s better to book now or wait until prices decrease. You can strategically pick the best days to fly and save money on your trip by using our “Price Calendar” tool. “Explore” shows an overview of how much it costs to fly to anywhere from a selected city or airport. Our “Discover” content is a great option for travel inspiration and money-saving tips, while “Price Alerts” will update you when prices change, so you can book when fares are right.

  • How does momondo find its flight prices?

    momondo shows deals across 700+ competitors all at once. momondo is active in 30 international markets, so you can have access to a wide range of options from airlines and OTAs alike.

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.

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