HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Rock Springs

$438+ 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 1/10. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — RKS
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Reagan-National to Rock Springs with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Reagan-National to Rock Springs

Best flights from Reagan-National to Rock Springs
Discover carefully curated flight deals from Reagan-National to Rock Springs that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 12, 2025.

This United Airlines deal was found by Cheapflights users on 12/9. 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 1/104:11 pmDCA - RKS
1 stop8h 04mUnited Airlines
Tue 1/135:15 amRKS - DCA
1 stop7h 44mUnited Airlines
Deal found 12/9$438
This United Airlines deal was found by Cheapflights users on 12/10. 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 1/247:00 pmDCA - RKS
2 stops29h 15mUnited Airlines
Wed 1/285:15 amRKS - DCA
1 stop7h 44mUnited Airlines
Deal found 12/10$509

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 December 12, 2025.

Round-trip from

$438
(United Airlines)
From Washington, D.C. Reagan-National to Rock Springs Sweetwater County
Search Deals

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 December 12, 2025.
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

Reagan-National

Fly to

Rock Springs

Route

Depart

Return

Price

Washington, D.C.Rock Springs

DCA - RKS

DCARKS

Washington, D.C. Reagan-National

Sat 1/10

4:11 pm-10:15 pm

1 stop8h 04m

Rock Springs Sweetwater County

Tue 1/13

5:15 am-2:59 pm

1 stop7h 44m

$438

Washington, D.C.Rock Springs

DCA - RKS

DCARKS

Washington, D.C. Reagan-National

Sat 1/24

7:00 pm-10:15 pm

2 stops29h 15m

Rock Springs Sweetwater County

Wed 1/28

5:15 am-2:59 pm

1 stop7h 44m

$509

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/9

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 $438, United Airlines can have you in Rock Springs from Washington, D.C. Reagan-National Airport in 8h 04m. 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Reagan-National to Rock Springs

See prices for flight routes from nearby airports that may be better suited for you.
Baltimore to Denver flights
Dulles Intl to Denver flights
Dulles Intl to Salt Lake City flights
Reagan-National to Salt Lake City flights
Reagan-National to Denver flights
Baltimore to Salt Lake City flights
Dulles Intl to Jackson flights
Reagan-National to Jackson flights
Baltimore to Jackson flights
Baltimore to Cody flights
Baltimore to Casper flights
Baltimore to Rock Springs flights
Dulles Intl to Gillette flights
Baltimore to Gillette flights
Dulles Intl to Casper flights
Reagan-National to Casper flights
Baltimore to Laramie flights
Reagan-National to Laramie flights
Dulles Intl to Cody flights
Reagan-National to Cody flights
Baltimore to West Yellowstone flights
Reagan-National to West Yellowstone flights
Dulles Intl to West Yellowstone flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.