When did momondo last update prices for flights from Rock Springs Sweetwater County Airport to Seattle/Tacoma Intl Airport?

Prices for flights from Rock Springs Sweetwater County Airport to Seattle/Tacoma Intl Airport were last updated today.

How many operators does momondo search for flights from Rock Springs Sweetwater County Airport to Seattle/Tacoma Intl Airport?

There is 1 operator available for flights from Rock Springs Sweetwater County Airport to Seattle/Tacoma Intl Airport as of August 2026.

How old do you have to be to fly from Rock Springs Sweetwater County Airport to Seattle/Tacoma Intl Airport?

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 Seattle/Tacoma Intl Airport.

What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

The necessary travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$308 Cheap Flights from Rock Springs to Seattle in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Rock Springs to Seattle

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

2:22 pm - 9:15 pm

RKS

SEA

7h 53m

1 stop

5:00 am - 1:47 pm

SEA

RKS

7h 47m

1 stop

$308United Airlines

Fri, Sep 18 - Mon, Sep 21

2:22 pm - 11:26 pm

RKS

SEA

10h 04m

2 stops

5:00 am - 1:47 pm

SEA

RKS

7h 47m

1 stop

$314United Airlines

Fri, Sep 18 - Mon, Sep 21

2:22 pm - 9:15 pm

RKS

SEA

7h 53m

1 stop

5:00 am - 1:47 pm

SEA

RKS

7h 47m

1 stop

$316United Airlines

Fri, Sep 18 - Sun, Sep 20

2:22 pm - 11:26 pm

RKS

SEA

10h 04m

2 stops

5:00 am - 1:47 pm

SEA

RKS

7h 47m

1 stop

$321United Airlines

Fri, Sep 18 - Sun, Sep 20

5:05 am - 10:01 am

RKS

SEA

5h 56m

1 stop

2:34 pm - 10:21 pm

SEA

RKS

6h 47m

1 stop

$388United Airlines

Sat, Sep 19 - Wed, Sep 23

5:05 am - 4:04 pm

RKS

SEA

11h 59m

2 stops

2:34 pm - 10:21 pm

SEA

RKS

6h 47m

1 stop

$394United Airlines

Sat, Sep 19 - Wed, Sep 23

5:05 am - 2:24 pm

RKS

SEA

10h 19m

2 stops

12:44 pm - 10:21 pm

SEA

RKS

8h 37m

1 stop

$394United Airlines

Sat, Sep 19 - Wed, Sep 23

5:05 am - 7:14 pm

RKS

SEA

15h 09m

2 stops

9:00 am - 10:21 pm

SEA

RKS

12h 21m

2 stops

$399United Airlines

Sat, Sep 19 - Wed, Sep 23

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United Airlines flights from Rock Springs to Seattle

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

United Airlines

Sep 18

RKS2:22 pmRock Springs Sweetwater County

7h 53m

1 stop

SEA9:15 pmSeattle/Tacoma Intl

Sep 21

SEA5:00 amSeattle/Tacoma Intl

7h 47m

1 stop

RKS1:47 pmRock Springs Sweetwater County

$308

United Airlines

Sep 18

RKS2:22 pmRock Springs Sweetwater County

10h 04m

2 stops

SEA11:26 pmSeattle/Tacoma Intl

Sep 21

SEA5:00 amSeattle/Tacoma Intl

7h 47m

1 stop

RKS1:47 pmRock Springs Sweetwater County

$314

United Airlines

Sep 18

RKS2:22 pmRock Springs Sweetwater County

7h 53m

1 stop

SEA9:15 pmSeattle/Tacoma Intl

Sep 20

SEA5:00 amSeattle/Tacoma Intl

7h 47m

1 stop

RKS1:47 pmRock Springs Sweetwater County

$316

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Rock SpringsSeattle

RKS - SEA

RKSSEA

Rock Springs Sweetwater County

Fri 9/18

2:22 pm-9:15 pm

1 stop7h 53m

Seattle/Tacoma Intl

Mon 9/21

5:00 am-1:47 pm

1 stop7h 47m

$308

Rock SpringsSeattle

RKS - SEA

RKSSEA

Rock Springs Sweetwater County

Fri 9/18

2:22 pm-11:26 pm

2 stops10h 04m

Seattle/Tacoma Intl

Mon 9/21

5:00 am-1:47 pm

1 stop7h 47m

$314

Rock SpringsSeattle

RKS - SEA

RKSSEA

Rock Springs Sweetwater County

Fri 9/18

2:22 pm-9:15 pm

1 stop7h 53m

Seattle/Tacoma Intl

Sun 9/20

5:00 am-1:47 pm

1 stop7h 47m

$316

Rock SpringsSeattle

RKS - SEA

RKSSEA

Rock Springs Sweetwater County

Fri 9/18

2:22 pm-11:26 pm

2 stops10h 04m

Seattle/Tacoma Intl

Sun 9/20

5:00 am-1:47 pm

1 stop7h 47m

$321

Quickest round-trip

Rock SpringsSeattle

RKS - SEA

RKSSEA

Rock Springs Sweetwater County

Sat 9/19

5:05 am-10:01 am

1 stop5h 56m

Seattle/Tacoma Intl

Wed 9/23

2:34 pm-10:21 pm

1 stop6h 47m

$388

Rock SpringsSeattle

RKS - SEA

RKSSEA

Rock Springs Sweetwater County

Sat 9/19

5:05 am-4:04 pm

2 stops11h 59m

Seattle/Tacoma Intl

Wed 9/23

2:34 pm-10:21 pm

1 stop6h 47m

$394

Rock SpringsSeattle

RKS - SEA

RKSSEA

Rock Springs Sweetwater County

Sat 9/19

5:05 am-2:24 pm

2 stops10h 19m

Seattle/Tacoma Intl

Wed 9/23

12:44 pm-10:21 pm

1 stop8h 37m

$394

Rock SpringsSeattle

RKS - SEA

RKSSEA

Rock Springs Sweetwater County

Sat 9/19

5:05 am-7:14 pm

2 stops15h 09m

Seattle/Tacoma Intl

Wed 9/23

9:00 am-10:21 pm

2 stops12h 21m

$399

Cheapest one-way

Quickest one-way

Rock SpringsSeattle

RKS - SEA

RKSSEA

Rock Springs Sweetwater County

Sun 8/9

5:05 am-10:00 am

1 stop5h 55m

$418

Rock SpringsSeattle

RKS - SEA

RKSSEA

Rock Springs Sweetwater County

Sun 8/9

5:05 am-2:39 pm

2 stops10h 34m

$424

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 11 resultsSorted by cheapest first

How to get the cheapest flight ticket from Rock Springs to Seattle

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 Seattle/Tacoma Intl?

United Airlines is the most popular carrier operating from Rock Springs Sweetwater County to Seattle/Tacoma Intl

When to book flights from Rock Springs to Seattle

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

Estimated round-trip price

Cheap Rock Springs to Seattle (RKS to SEA) flight deals and tips

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

Fastest flight time	7h 53m
Direct flights	None

The fastest flight from Rock Springs to Seattle takes 7h 53m

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

Search flight deals

Frequently asked questions about flying from Rock Springs to Seattle

How far is Rock Springs Sweetwater County to Seattle/Tacoma Intl by plane?
Seattle/Tacoma Intl is 766.7 mi away from Rock Springs Sweetwater County. In terms of flight time, this usually takes a little over 7h 53m.
When did momondo last update prices for flights from Rock Springs Sweetwater County Airport to Seattle/Tacoma Intl Airport?
Prices for flights from Rock Springs Sweetwater County Airport to Seattle/Tacoma Intl Airport were last updated today.
How many operators does momondo search for flights from Rock Springs Sweetwater County Airport to Seattle/Tacoma Intl Airport?
There is 1 operator available for flights from Rock Springs Sweetwater County Airport to Seattle/Tacoma Intl Airport as of August 2026.
How old do you have to be to fly from Rock Springs Sweetwater County Airport to Seattle/Tacoma Intl Airport?
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 Seattle/Tacoma Intl Airport.
What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?
The necessary travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Rock Springs to Seattle?
Based on momondo bookings for flights between Rock Springs and Seattle, the leading airline is United Airlines, making up 100% of the total bookings.

Best airlines flying from Rock Springs to Seattle

Compare and see reviews for airlines that fly from Rock Springs to Seattle with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $238	Free Cancellation	Rating 7.4 10,059 reviews		Search United Airlines flights

Tacoma

Leavenworth

SeaTac

Ocean Shores

Renton

Olympia

Kent

Lynnwood

Redmond

Lakewood

Puyallup

Fife

Federal Way

Tukwila

Cle Elum

Marysville

Kirkland

Centralia

Shoreline

Lacey

Why use momondo?

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

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 Seattle from Rock Springs.

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

Flights from Rock Springs to Seattle with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Rock Springs to Seattle.

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

Yes. momondo can track prices for Rock Springs to Seattle flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.