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$268+ Cheap flights from Rock Springs to Seattle (RKS - SEA)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/27. Fares are subject to change and may not be available on all flights or dates of travel.
RKS — SEA
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from Rock Springs to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Rock Springs (RKS) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 11, 2025.

Round-trip from

$353
(United Airlines)

One-way from

$268
(United Airlines)
From Rock Springs Sweetwater County to Seattle/Tacoma Intl
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One-way flight from Rock Springs Sweetwater County to Seattle/Tacoma Intl
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Find flight deals from Rock Springs to Seattle

Best flights from Rock Springs to Seattle
Discover carefully curated flight deals from Rock Springs to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 11, 2025.

This United Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/282:05 pmRKS - SEA
1 stop8h 07mUnited Airlines
Tue 3/33:51 pmSEA - RKS
1 stop5h 10mUnited Airlines
Deal found 9/9$353

Cheapflights Fare Finder

 
Customize your flight search to find flights from Rock Springs to Seattle 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, Cheapflights users made 2,558,603 searches. Data last updated September 11, 2025.
Use the filters below to find and compare flights from Rock Springs to Seattle that are best for you.

Fly from

Rock Springs

Fly to

Seattle

Route

Depart

Return

Price

Rock SpringsSeattle

RKS - SEA

RKSSEA

Rock Springs Sweetwater County

Sat 2/28

2:05 pm-9:12 pm

1 stop8h 07m

Seattle/Tacoma Intl

Tue 3/3

3:51 pm-10:01 pm

1 stop5h 10m

$353

Rock SpringsSeattle

RKS - SEA

RKSSEA

Rock Springs Sweetwater County

Tue 12/2

5:15 am-10:09 am

1 stop5h 54m

$268

Rock SpringsSeattle

RKS - SEA

RKSSEA

Rock Springs Sweetwater County

Thu 11/27

5:15 am-10:35 am

1 stop6h 20m

$268

Rock SpringsSeattle

RKS - SEA

RKSSEA

Rock Springs Sweetwater County

Sat 11/29

1:56 pm-10:42 pm

1 stop9h 46m

$305

Rock SpringsSeattle

RKS - SEA

RKSSEA

Rock Springs Sweetwater County

Wed 12/3

5:15 am-9:00 pm

3 stops16h 45m

$315

Rock SpringsSeattle

RKS - SEA

RKSSEA

Rock Springs Sweetwater County

Fri 11/28

5:15 am-2:39 pm

1 stop10h 24m

$370

Rock SpringsSeattle

RKS - SEA

RKSSEA

Rock Springs Sweetwater County

Mon 12/1

1:56 pm-9:00 pm

3 stops32h 04m

$461

Rock SpringsSeattle

RKS - SEA

RKSSEA

Rock Springs Sweetwater County

Sun 11/30

1:56 pm-10:35 am

1 stop21h 39m

$516

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

Best time to book a flight from Rock Springs to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Rock Springs with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

Find useful and relevant information for your journey from Rock Springs to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Rock Springs to Seattle?

    For as low as $353, United Airlines can have you in Seattle from Rock Springs in 8h 07m. Airlines will cover a distance of 766 mi.

  • Can I find deals for flights from Rock Springs to Seattle that include hotel bookings?

    Yes. In addition to deals on Rock Springs to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Rock Springs to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Rock Springs to Seattle.

  • Can I find deals for business class flights from Rock Springs to Seattle?

    Yes. Cheapflights offers flight deals from Rock Springs to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Rock Springs to Seattle?

    Currently, January is the cheapest month in which you can book a flight from Rock Springs to Seattle (average of $238). Flying from Rock Springs to Seattle in June is currently the most expensive (average of $388). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Seattle?

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