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 May 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.

$263 Cheap Flights from Rock Springs to Seattle in 2026

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Find the cheapest flights from Rock Springs to Seattle

Round-trip

One-way

Cheap round-trip flights

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2:16 pm - 9:10 pm

RKS

SEA

7h 54m

1 stop

2:26 pm - 10:01 pm

SEA

RKS

6h 35m

1 stop

$344United Airlines

Wed, Aug 5 - Thu, Aug 13

2:16 pm - 11:10 pm

RKS

SEA

9h 54m

2 stops

2:26 pm - 10:01 pm

SEA

RKS

6h 35m

1 stop

$377United Airlines

Wed, Aug 5 - Thu, Aug 13

5:05 am - 7:03 pm

RKS

SEA

14h 58m

2 stops

2:26 pm - 10:01 pm

SEA

RKS

6h 35m

1 stop

$384United Airlines

Tue, Aug 4 - Thu, Aug 13

2:16 pm - 11:10 pm

RKS

SEA

9h 54m

1 stop

5:00 am - 1:30 pm

SEA

RKS

7h 30m

1 stop

$393United Airlines

Wed, Aug 5 - Fri, Aug 14

5:05 am - 2:36 pm

RKS

SEA

10h 31m

2 stops

6:29 am - 10:01 pm

SEA

RKS

14h 32m

2 stops

$404United Airlines

Tue, Aug 4 - Thu, Aug 13

5:05 am - 10:00 am

RKS

SEA

5h 55m

1 stop

5:00 am - 1:30 pm

SEA

RKS

7h 30m

1 stop

$438United Airlines

Tue, Aug 4 - Fri, Aug 14

5:05 am - 2:36 pm

RKS

SEA

10h 31m

2 stops

5:00 am - 1:30 pm

SEA

RKS

7h 30m

1 stop

$444United Airlines

Tue, Aug 4 - Sat, Aug 15

2:16 pm - 11:10 pm

RKS

SEA

9h 54m

1 stop

5:00 am - 1:30 pm

SEA

RKS

7h 30m

1 stop

$453United Airlines

Wed, Aug 5 - Sat, Aug 15

5:05 am - 2:36 pm

RKS

SEA

10h 31m

2 stops

6:29 am - 10:01 pm

SEA

RKS

14h 32m

2 stops

$464United Airlines

Wed, Aug 5 - Thu, Aug 13

5:05 am - 10:00 am

RKS

SEA

5h 55m

1 stop

5:00 am - 1:30 pm

SEA

RKS

7h 30m

1 stop

$498United Airlines

Tue, Aug 4 - Sat, Aug 15

United Airlines flights from Rock Springs to Seattle

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

United Airlines

Aug 5

RKS2:16 pmRock Springs Sweetwater County

7h 54m

1 stop

SEA9:10 pmSeattle/Tacoma Intl

Aug 13

SEA2:26 pmSeattle/Tacoma Intl

6h 35m

1 stop

RKS10:01 pmRock Springs Sweetwater County

$344

United Airlines

Aug 5

RKS2:16 pmRock Springs Sweetwater County

9h 54m

2 stops

SEA11:10 pmSeattle/Tacoma Intl

Aug 13

SEA2:26 pmSeattle/Tacoma Intl

6h 35m

1 stop

RKS10:01 pmRock Springs Sweetwater County

$377

United Airlines

Aug 4

RKS5:05 amRock Springs Sweetwater County

14h 58m

2 stops

SEA7:03 pmSeattle/Tacoma Intl

Aug 13

SEA2:26 pmSeattle/Tacoma Intl

6h 35m

1 stop

RKS10:01 pmRock Springs Sweetwater County

$384

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Rock SpringsSeattle

RKS - SEA

RKSSEA

Rock Springs Sweetwater County

Wed 8/5

2:16 pm-9:10 pm

1 stop7h 54m

Seattle/Tacoma Intl

Thu 8/13

2:26 pm-10:01 pm

1 stop6h 35m

$344

Rock SpringsSeattle

RKS - SEA

RKSSEA

Rock Springs Sweetwater County

Wed 8/5

2:16 pm-11:10 pm

2 stops9h 54m

Seattle/Tacoma Intl

Thu 8/13

2:26 pm-10:01 pm

1 stop6h 35m

$377

Rock SpringsSeattle

RKS - SEA

RKSSEA

Rock Springs Sweetwater County

Tue 8/4

5:05 am-7:03 pm

2 stops14h 58m

Seattle/Tacoma Intl

Thu 8/13

2:26 pm-10:01 pm

1 stop6h 35m

$384

Rock SpringsSeattle

RKS - SEA

RKSSEA

Rock Springs Sweetwater County

Wed 8/5

2:16 pm-11:10 pm

1 stop9h 54m

Seattle/Tacoma Intl

Fri 8/14

5:00 am-1:30 pm

1 stop7h 30m

$393

Rock SpringsSeattle

RKS - SEA

RKSSEA

Rock Springs Sweetwater County

Tue 8/4

5:05 am-2:36 pm

2 stops10h 31m

Seattle/Tacoma Intl

Thu 8/13

6:29 am-10:01 pm

2 stops14h 32m

$404

Quickest round-trip

Rock SpringsSeattle

RKS - SEA

RKSSEA

Rock Springs Sweetwater County

Tue 8/4

5:05 am-10:00 am

1 stop5h 55m

Seattle/Tacoma Intl

Fri 8/14

5:00 am-1:30 pm

1 stop7h 30m

$438

Rock SpringsSeattle

RKS - SEA

RKSSEA

Rock Springs Sweetwater County

Tue 8/4

5:05 am-2:36 pm

2 stops10h 31m

Seattle/Tacoma Intl

Sat 8/15

5:00 am-1:30 pm

1 stop7h 30m

$444

Rock SpringsSeattle

RKS - SEA

RKSSEA

Rock Springs Sweetwater County

Wed 8/5

2:16 pm-11:10 pm

1 stop9h 54m

Seattle/Tacoma Intl

Sat 8/15

5:00 am-1:30 pm

1 stop7h 30m

$453

Rock SpringsSeattle

RKS - SEA

RKSSEA

Rock Springs Sweetwater County

Wed 8/5

5:05 am-2:36 pm

2 stops10h 31m

Seattle/Tacoma Intl

Thu 8/13

6:29 am-10:01 pm

2 stops14h 32m

$464

Rock SpringsSeattle

RKS - SEA

RKSSEA

Rock Springs Sweetwater County

Tue 8/4

5:05 am-10:00 am

1 stop5h 55m

Seattle/Tacoma Intl

Sat 8/15

5:00 am-1:30 pm

1 stop7h 30m

$498

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 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 54m
Direct flights	None

The fastest flight from Rock Springs to Seattle takes 7h 54m

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

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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 54m.
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 May 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 9,690 reviews		Search United Airlines flights

Tacoma

Leavenworth

SeaTac

Ocean Shores

Renton

Olympia

Lynnwood

Redmond

Kent

Marysville

Puyallup

Tukwila

Lakewood

Cle Elum

Federal Way

Centralia

Fife

Shoreline

Westport

Tumwater

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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.

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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.