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Rock Springs

$645+ Cheap flights from Reagan-National (DCA) to Rock Springs (RKS)

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 11/10. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — RKS
Aug 28 — Sep 41
Fri 8/28
Fri 9/4
1 adult, Economy
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Cheap flight deals from Reagan-National to Rock Springs

Cheapest flights from Reagan-National to Rock Springs
Explore the most affordable flight options available from Reagan-National to Rock Springs. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2026.

This United Airlines deal was found by Cheapflights users on 7/26. 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.
Tue 11/103:30 pm
DCA
-
RKS
2 stops24h 14m
United Airlines
Sat 11/145:00 am
RKS
-
DCA
2 stops14h 11m
United Airlines
Deal found 7/26$645
This United Airlines deal was found by Cheapflights users on 7/24. 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 8/84:13 pm
DCA
-
RKS
1 stop8h 10m
United Airlines
Wed 8/125:05 am
RKS
-
DCA
1 stop8h 01m
United Airlines
Deal found 7/24$1,679

Find flight deals from Reagan-National to Rock Springs

Discover tips and strategies to find the most affordable flight options for your journey from Reagan-National (DCA) to Rock Springs (RKS). 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 July 29, 2026.

Round-trip from

$645
(United Airlines)
From Washington, D.C. Reagan-National to Rock Springs Sweetwater County
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Reagan-National to Rock Springs 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 July 29, 2026.
Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Rock Springs that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

Washington, D.C.Rock Springs

DCA - RKS

DCARKS

Washington, D.C. Reagan-National

Tue 11/10

3:30 pm-1:44 pm

2 stops24h 14m

Rock Springs Sweetwater County

Sat 11/14

5:00 am-9:11 pm

2 stops14h 11m

$645

Washington, D.C.Rock Springs

DCA - RKS

DCARKS

Washington, D.C. Reagan-National

Tue 1/5

8:30 am-1:30 pm

2 stops31h 00m

Rock Springs Sweetwater County

Sat 1/9

5:25 am-8:43 pm

2 stops13h 18m

$705

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/26

Sorted by cheapest first

Best time to book a flight from Reagan-National to Rock Springs

Have a flexible travel schedule? Discover the best time to fly to Rock Springs from Reagan-National 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 Reagan-National to Rock Springs. 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 into for flights to Rock Springs from Washington, D.C. Reagan-National?

    For a flight from Washington, D.C. Reagan-National to Rock Springs, you will be flying into Sweetwater County. Rock Springs Sweetwater County (RKS) is just 7.1 mi from the center of the city. Sweetwater County is the only Rock Springs airport and it handles 0 inbound flights from Washington, D.C. Reagan-National per day. 0 airlines have flights to Rock Springs Sweetwater County from Washington, D.C. Reagan-National on a regular basis.

  • How long is the flight from Washington, D.C. Reagan-National Airport to Rock Springs?

    For as low as $645, United Airlines can have you in Rock Springs from Washington, D.C. Reagan-National Airport in 24h 14m. The distance from Washington, D.C. Reagan-National Airport to Rock Springs is about 1689 mi.

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

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

  • How can I find direct flights from Reagan-National to Rock Springs?

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

  • Can I find deals for business class flights from Reagan-National to Rock Springs?

    Yes. Cheapflights offers flight deals from Reagan-National to Rock Springs 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

Traveling to a place near Rock Springs?

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