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Cheap flights from Washington, D.C. Reagan-National Airport to Rock Springs from $607

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. Reagan-National Airport to Rock Springs departing on 10/27. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Washington, D.C. Reagan-National Airport to Rock Springs

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
9:30 am - 10:01 pm
DCA
-
RKS
14h 31m
2 stops
United Airlines Logo
5:25 am - 2:56 pm
RKS
-
DCA
7h 31m
1 stop
$607United Airlines
Tue, Oct 27 - Sat, Oct 31
United Airlines Logo
6:00 am - 10:01 pm
DCA
-
RKS
18h 01m
2 stops
United Airlines Logo
5:25 am - 8:43 pm
RKS
-
DCA
13h 18m
2 stops
$635United Airlines
Tue, Oct 27 - Sat, Oct 31
United Airlines Logo
9:00 am - 10:01 pm
DCA
-
RKS
15h 01m
2 stops
United Airlines Logo
5:25 am - 10:31 pm
RKS
-
DCA
15h 06m
2 stops
$687United Airlines
Tue, Oct 27 - Sat, Oct 31
United Airlines Logo
9:00 am - 10:01 pm
DCA
-
RKS
15h 01m
2 stops
United Airlines Logo
5:25 am - 10:31 pm
RKS
-
DCA
15h 06m
2 stops
$705United Airlines
Tue, Oct 27 - Sat, Oct 31
United Airlines Logo
6:00 am - 1:30 pm
DCA
-
RKS
33h 30m
3 stops
United Airlines Logo
5:25 am - 7:33 pm
RKS
-
DCA
12h 08m
2 stops
$706United Airlines
Tue, Oct 27 - Sat, Oct 31

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United Airlines flights from Washington, D.C. Reagan-National Airport to Rock Springs

Our best United Airlines deals on Washington, D.C. Reagan-National Airport to Rock Springs flight tickets
United Airlines
Oct 27
DCA9:30 amWashington, D.C. Reagan-National
14h 31m
2 stops
RKS10:01 pmRock Springs Sweetwater County
Oct 31
RKS5:25 amRock Springs Sweetwater County
7h 31m
1 stop
DCA2:56 pmWashington, D.C. Reagan-National
$607
United Airlines
Oct 27
DCA6:00 amWashington, D.C. Reagan-National
18h 01m
2 stops
RKS10:01 pmRock Springs Sweetwater County
Oct 31
RKS5:25 amRock Springs Sweetwater County
13h 18m
2 stops
DCA8:43 pmWashington, D.C. Reagan-National
$635
United Airlines
Oct 27
DCA9:00 amWashington, D.C. Reagan-National
15h 01m
2 stops
RKS10:01 pmRock Springs Sweetwater County
Oct 31
RKS5:25 amRock Springs Sweetwater County
15h 06m
2 stops
DCA10:31 pmWashington, D.C. Reagan-National
$687

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Reagan-National Airport 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, momondo users made 832,500 searches. Data last updated July 7, 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 10/27

9:30 am-10:01 pm

2 stops14h 31m

Rock Springs Sweetwater County

Sat 10/31

5:25 am-2:56 pm

1 stop7h 31m

$607

Washington, D.C.Rock Springs

DCA - RKS

DCARKS

Washington, D.C. Reagan-National

Tue 10/27

6:00 am-10:01 pm

2 stops18h 01m

Rock Springs Sweetwater County

Sat 10/31

5:25 am-8:43 pm

2 stops13h 18m

$635

Washington, D.C.Rock Springs

DCA - RKS

DCARKS

Washington, D.C. Reagan-National

Tue 10/27

9:00 am-10:01 pm

2 stops15h 01m

Rock Springs Sweetwater County

Sat 10/31

5:25 am-10:31 pm

2 stops15h 06m

$687

Washington, D.C.Rock Springs

DCA - RKS

DCARKS

Washington, D.C. Reagan-National

Tue 10/27

9:00 am-10:01 pm

2 stops15h 01m

Rock Springs Sweetwater County

Sat 10/31

5:25 am-10:31 pm

2 stops15h 06m

$705

Washington, D.C.Rock Springs

DCA - RKS

DCARKS

Washington, D.C. Reagan-National

Tue 10/27

6:00 am-1:30 pm

3 stops33h 30m

Rock Springs Sweetwater County

Sat 10/31

5:25 am-7:33 pm

2 stops12h 08m

$706

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

When to book flights from Washington, D.C. Reagan-National Airport to Rock Springs

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. Reagan-National Airport to Rock Springs according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Washington, D.C. Reagan-National Airport to Rock Springs (DCA to RKS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Reagan-National Airport to Rock Springs

Fastest flight time

15h 01m

Direct flights

None
The fastest flight from Washington, D.C. Reagan-National Airport to Rock Springs takes 15h 01m
There are no direct flights from Washington, D.C. Reagan-National Airport to Rock Springs. There are no popular flight routes from Washington, D.C. Reagan-National Airport to Rock Springs.
Search flight deals

Frequently asked questions about flying from Washington, D.C. Reagan-National Airport to Rock Springs

  • How far is Washington, D.C. Reagan-National to Rock Springs Sweetwater County by plane?

    Rock Springs Sweetwater County is 1696.4 mi away from Washington, D.C. Reagan-National. Typically, this will take 15h 01m by plane in normal conditions.

  • When did momondo last update prices for flights from Washington, D.C. Reagan-National Airport to Rock Springs Sweetwater County Airport?

    Prices for flights from Washington, D.C. Reagan-National Airport to Rock Springs Sweetwater County Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Washington, D.C. Reagan-National Airport to Rock Springs Sweetwater County Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington, D.C. Reagan-National Airport to Rock Springs Sweetwater County Airport.

  • What documentation or ID do you need to fly to Rock Springs Sweetwater County Airport?

    The travel and health documents required for your trip to Rock Springs Sweetwater County Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Rock Springs Sweetwater County Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Frequently asked questions about flying from Washington, D.C. Reagan-National Airport to Rock Springs

  • How do I get Price Alerts for flights from Washington, D.C. Reagan-National Airport to Rock Springs?

    Search flight deals from Washington, D.C. Reagan-National Airport to Rock Springs. While viewing offers you’ll have the option to create a Price Alert.

  • How can I save money on flights from Washington, D.C. Reagan-National Airport to Rock Springs with momondo?

    Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore”. Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.

  • How does momondo find its flight prices?

    We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.

Traveling to a place near Rock Springs?

Book flights to Rock Springs if you plan to visit one of these locations
Green River

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Rock Springs?

Finding the right flight to Rock Springs from Washington, D.C. is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Rock Springs quick and easy, saving you time and money.

Can I find flights from Washington, D.C. to Rock Springs with flexible booking policies on momondo?

Flights from Washington, D.C. to Rock Springs 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 Washington, D.C. to Rock Springs?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Rock Springs from Washington, D.C..

I’m not ready to book a flight from Washington, D.C. to Rock Springs right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Washington, D.C. to Rock Springs 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.

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