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$398+ Cheap flights from Rock Springs (RKS) to Washington

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/14. Fares are subject to change and may not be available on all flights or dates of travel.
RKS — SEA
Mar 11 — Mar 181
Wed 3/11
Wed 3/18
1 adult, Economy
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Cheap flight deals from Rock Springs to Washington

Cheapest flights from Rock Springs to Washington
Explore the most affordable flight options available from Rock Springs to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 9, 2026.

This United Airlines deal was found by Cheapflights users on 2/6. 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 2/145:15 am
RKS
-
SEA
1 stop5h 34m
United Airlines
Wed 2/182:55 pm
SEA
-
RKS
1 stop6h 18m
United Airlines
Deal found 2/6$398
This United Airlines deal was found by Cheapflights users on 2/8. 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.
Mon 2/235:15 am
RKS
-
SEA
1 stop5h 34m
United Airlines
Fri 2/279:19 am
SEA
-
RKS
2 stops27h 14m
United Airlines
Deal found 2/8$612

Find flight deals from Rock Springs to Washington

Keep the following information in mind while searching for Rock Springs to Washington flight deals. Data was last updated February 9, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$612
(United Airlines)
Provider with most accurate pricing for Rock Springs Sweetwater County-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Rock Springs Sweetwater County-Seattle/Tacoma Intl flights.
Search Deals
From Rock Springs Sweetwater County to Washington
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Rock Springs to 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, Cheapflights users made 2,558,603 searches. Data last updated February 9, 2026.
Use the filters below to find and compare flights from Rock Springs to Washington that are best for you.

Fly from

Rock Springs

Fly to

Washington

Route

Depart

Return

Price

Rock SpringsSeattle

RKS - SEA

RKSSEA

Rock Springs Sweetwater County

Mon 2/23

5:15 am-9:49 am

1 stop5h 34m

Seattle/Tacoma Intl

Fri 2/27

9:19 am-1:33 pm

2 stops27h 14m

$612

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/8

Best time to book a flight from Rock Springs to Washington

Have a flexible travel schedule? Discover the best time to fly to Washington 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.

Cheapflights Insights

Everything you need to know about your flight from Rock Springs to Washington
No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Washington

Get insights into the airlines that provide service to Washington. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Washington. Reviews last updated February 9, 2026.
Read through reviews of airlines operating flights from Rock Springs to Washington, such as United Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,257 reviews

Crew

8.1

Overall

7.4

Boarding

7.7

Entertainment

7.1

Food

6.6

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,257 reviews
United Airlines
7.4
Good
9,257 reviews

Crew

8.1

Overall

7.4

Boarding

7.7

Entertainment

7.1

Food

6.6

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Related info for your journey

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

  • What airport do you fly from for flights from Rock Springs to Washington?

    Located just 7.1 mi from the city center, Rock Springs Sweetwater County (RKS) is the airport most travelers will use when flying to Washington from Rock Springs.

  • How long is the flight from Rock Springs to State of Washington?

    United Airlines can get you from Rock Springs to State of Washington in just under 5h 34m. Your travel time can differ by up to . Airlines will cover a distance of 766 mi.

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

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

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

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

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

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

See more FAQs

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Top airline flying from Rock Springs to Washington

Discover the top airline that operate flights from Rock Springs to Washington. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 9, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$238Average$328FlexibilityNo cancel feeOn-time69%

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