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Cheap flights from District of Columbia to Rock Springs from $378

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from District of Columbia to Rock Springs departing on 7/1. 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
0 bags

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Find the cheapest flights from District of Columbia to Rock Springs

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
6:30 am - 1:31 pm
IAD
-
RKS
9h 01m
1 stop
United Airlines Logo
2:16 pm - 12:45 am
RKS
-
IAD
8h 29m
1 stop
$378United Airlines
Wed, Jul 1 - Tue, Jul 7
United Airlines Logo
5:20 pm - 10:15 pm
IAD
-
RKS
6h 55m
1 stop
United Airlines Logo
2:15 pm - 11:33 pm
RKS
-
IAD
7h 18m
1 stop
$503United Airlines
Sat, Apr 25 - Wed, Apr 29
United Airlines Logo
4:00 pm - 10:15 pm
IAD
-
RKS
8h 15m
1 stop
United Airlines Logo
2:15 pm - 11:33 pm
RKS
-
IAD
7h 18m
1 stop
$508United Airlines
Sat, Apr 25 - Wed, Apr 29
United Airlines Logo
8:20 am - 1:31 pm
IAD
-
RKS
31h 11m
2 stops
United Airlines Logo
5:05 am - 3:53 pm
RKS
-
IAD
8h 48m
1 stop
$547United Airlines
Wed, Jul 1 - Tue, Jul 7
United Airlines Logo
2:21 pm - 10:15 pm
IAD
-
RKS
9h 54m
1 stop
United Airlines Logo
5:15 am - 9:12 pm
RKS
-
IAD
13h 57m
2 stops
$572United Airlines
Sat, Apr 25 - Wed, Apr 29
United Airlines Logo
4:11 pm - 10:15 pm
DCA
-
RKS
8h 04m
1 stop
United Airlines Logo
5:15 am - 2:59 pm
RKS
-
DCA
7h 44m
1 stop
$598United Airlines
Sat, Apr 25 - Wed, Apr 29
United Airlines Logo
5:20 pm - 10:15 pm
IAD
-
RKS
6h 55m
1 stop
United Airlines Logo
5:15 am - 4:26 pm
RKS
-
IAD
33h 11m
2 stops
$614United Airlines
Sat, Apr 25 - Wed, Apr 29
United Airlines Logo
4:11 pm - 10:15 pm
DCA
-
RKS
8h 04m
1 stop
United Airlines Logo
5:15 am - 2:59 pm
RKS
-
DCA
7h 44m
1 stop
$618United Airlines
Sat, Apr 25 - Wed, Apr 29
United Airlines Logo
5:20 pm - 10:15 pm
IAD
-
RKS
6h 55m
1 stop
United Airlines Logo
2:15 pm - 7:24 am
RKS
-
IAD
15h 09m
2 stops
$622United Airlines
Sat, Apr 25 - Wed, Apr 29
United Airlines Logo
4:11 pm - 10:15 pm
DCA
-
RKS
8h 04m
1 stop
United Airlines Logo
2:15 pm - 9:59 am
RKS
-
DCA
17h 44m
2 stops
$623United Airlines
Sat, Apr 25 - Wed, Apr 29

United Airlines flights from District of Columbia to Rock Springs

Our best United Airlines deals on District of Columbia to Rock Springs flight tickets
United Airlines
Jul 1
IAD6:30 amWashington, D.C. Dulles Intl
9h 01m
1 stop
RKS1:31 pmRock Springs Sweetwater County
Jul 7
RKS2:16 pmRock Springs Sweetwater County
8h 29m
1 stop
IAD12:45 amWashington, D.C. Dulles Intl
$378
United Airlines
Apr 25
IAD5:20 pmWashington, D.C. Dulles Intl
6h 55m
1 stop
RKS10:15 pmRock Springs Sweetwater County
Apr 29
RKS2:15 pmRock Springs Sweetwater County
7h 18m
1 stop
IAD11:33 pmWashington, D.C. Dulles Intl
$503
United Airlines
Apr 25
IAD4:00 pmWashington, D.C. Dulles Intl
8h 15m
1 stop
RKS10:15 pmRock Springs Sweetwater County
Apr 29
RKS2:15 pmRock Springs Sweetwater County
7h 18m
1 stop
IAD11:33 pmWashington, D.C. Dulles Intl
$508

momondo Fare Finder

 
Customize your flight search to find flights from District of Columbia 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 April 12, 2026.
Use the filters below to find and compare flights from District of Columbia to Rock Springs that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Rock Springs

IAD - RKS

IADRKS

Washington, D.C. Dulles Intl

Wed 7/1

6:30 am-1:31 pm

1 stop9h 01m

Rock Springs Sweetwater County

Tue 7/7

2:16 pm-12:45 am

1 stop8h 29m

$378
Quickest round-trip

Washington, D.C.Rock Springs

IAD - RKS

IADRKS

Washington, D.C. Dulles Intl

Sat 4/25

5:20 pm-10:15 pm

1 stop6h 55m

Rock Springs Sweetwater County

Wed 4/29

2:15 pm-11:33 pm

1 stop7h 18m

$503

Washington, D.C.Rock Springs

IAD - RKS

IADRKS

Washington, D.C. Dulles Intl

Sat 4/25

4:00 pm-10:15 pm

1 stop8h 15m

Rock Springs Sweetwater County

Wed 4/29

2:15 pm-11:33 pm

1 stop7h 18m

$508

Washington, D.C.Rock Springs

IAD - RKS

IADRKS

Washington, D.C. Dulles Intl

Wed 7/1

8:20 am-1:31 pm

2 stops31h 11m

Rock Springs Sweetwater County

Tue 7/7

5:05 am-3:53 pm

1 stop8h 48m

$547

Washington, D.C.Rock Springs

IAD - RKS

IADRKS

Washington, D.C. Dulles Intl

Sat 4/25

2:21 pm-10:15 pm

1 stop9h 54m

Rock Springs Sweetwater County

Wed 4/29

5:15 am-9:12 pm

2 stops13h 57m

$572

Washington, D.C.Rock Springs

DCA - RKS

DCARKS

Washington, D.C. Reagan-National

Sat 4/25

4:11 pm-10:15 pm

1 stop8h 04m

Rock Springs Sweetwater County

Wed 4/29

5:15 am-2:59 pm

1 stop7h 44m

$598

Washington, D.C.Rock Springs

IAD - RKS

IADRKS

Washington, D.C. Dulles Intl

Sat 4/25

5:20 pm-10:15 pm

1 stop6h 55m

Rock Springs Sweetwater County

Wed 4/29

5:15 am-4:26 pm

2 stops33h 11m

$614

Washington, D.C.Rock Springs

DCA - RKS

DCARKS

Washington, D.C. Reagan-National

Sat 4/25

4:11 pm-10:15 pm

1 stop8h 04m

Rock Springs Sweetwater County

Wed 4/29

5:15 am-2:59 pm

1 stop7h 44m

$618

Washington, D.C.Rock Springs

IAD - RKS

IADRKS

Washington, D.C. Dulles Intl

Sat 4/25

5:20 pm-10:15 pm

1 stop6h 55m

Rock Springs Sweetwater County

Wed 4/29

2:15 pm-7:24 am

2 stops15h 09m

$622

Washington, D.C.Rock Springs

DCA - RKS

DCARKS

Washington, D.C. Reagan-National

Sat 4/25

4:11 pm-10:15 pm

1 stop8h 04m

Rock Springs Sweetwater County

Wed 4/29

2:15 pm-9:59 am

2 stops17h 44m

$623

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

Cheap District of Columbia to Rock Springs flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from District of Columbia to Rock Springs

Fastest flight time

6h 55m

Direct flights

None
The fastest flight from District of Columbia to Rock Springs takes 6h 55m
There are no direct flights from District of Columbia to Rock Springs. There are no popular flight routes from District of Columbia to Rock Springs.
Search flight deals

Frequently asked questions about flying from District of Columbia to Rock Springs

  • When did momondo last update prices for flights from District of Columbia to Rock Springs Sweetwater County Airport?

    Prices for flights from District of Columbia to Rock Springs Sweetwater County Airport refresh daily.

  • How old do you have to be to fly from District of Columbia to Rock Springs Sweetwater County Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from District of Columbia 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 you'll need for your trip to Rock Springs Sweetwater County Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Rock Springs Sweetwater County Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Frequently asked questions about flying from District of Columbia to Rock Springs

  • How do I get Price Alerts for flights from District of Columbia to Rock Springs?

    Search flight deals from District of Columbia to Rock Springs. While viewing offers you’ll have the option to create a Price Alert.

  • How can I save money on flights from District of Columbia to Rock Springs with momondo?

    Leverage our AI within our “Price Forecast” tool, which predicts if it’s better to book now or wait until prices decrease. You can strategically pick the best days to fly and save money on your trip by using our “Price Calendar” tool. “Explore” shows an overview of how much it costs to fly to anywhere from a selected city or airport. Our “Discover” content is a great option for travel inspiration and money-saving tips, while “Price Alerts” will update you when prices change, so you can book when fares are right.

  • 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 District of Columbia to Rock Springs?

It is quick and easy to find District of Columbia to Rock Springs flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Rock Springs that suits you.

Can I find flights from District of Columbia to Rock Springs with flexible booking policies on momondo?

All flight searches from District of Columbia to Rock Springs on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from District of Columbia to Rock Springs?

Once all potential District of Columbia to Rock Springs flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from District of Columbia to Rock Springs right now. Can momondo alert me if prices change?

If you are not ready to book a flight from District of Columbia to Rock Springs now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Rock Springs and let you know when they change.

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