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 June 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.

$298 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

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

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

United Airlines flights from Rock Springs to Seattle

Our best United Airlines deals on Rock Springs to Seattle 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

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 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	8h 18m
Direct flights	None

The fastest flight from Rock Springs to Seattle takes 8h 18m

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 8h 18m.
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 June 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 9,868 reviews		Search United Airlines flights

Tacoma

Leavenworth

SeaTac

Ocean Shores

Renton

Olympia

Lynnwood

Redmond

Kent

Lakewood

Puyallup

Tukwila

Federal Way

Fife

Cle Elum

Marysville

Centralia

Shoreline

Kirkland

Westport

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.