IAD - COS

$170 Find Cheap Flights from Washington Dulles Airport to Colorado Springs - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dulles Intl to Colorado Springs departing on 8/4. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Colorado Springs

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Colorado Springs, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Colorado Springs, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$261
Typical prices: $412-$263
Delta
Tue 8/11Tue 8/18
IAD - COS • 1 stop
Cheapest one-way
$170
Typical prices: $143-$327
United Airlines
Tue 8/4
IAD - COS • 1 stop
Top airlines
Cheapest • from $261 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Dulles Intl and Colorado Springs. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $503 (round-trip)
Shortest trip • 6h 18m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 41% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Colorado Springs!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Dulles Intl to Colorado Springs (IAD-COS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Dulles Intl to Colorado Springs that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Dulles Intl to Colorado Springs

Tue, Aug 11 - Tue, Aug 18
Delta Logo
6:00 am - 10:47 am
IAD
-
COS
6h 47m
1 stop
Delta Logo
6:00 am - 4:42 pm
COS
-
IAD
8h 42m
1 stop
$261Delta
Tue, Sep 15 - Sat, Sep 19
Delta Logo
3:13 pm - 7:36 pm
IAD
-
COS
6h 23m
1 stop
Delta Logo
6:00 am - 2:18 pm
COS
-
IAD
6h 18m
1 stop
$287Delta
Wed, Aug 12 - Wed, Aug 19
Delta Logo
8:28 am - 12:15 pm
IAD
-
COS
5h 47m
1 stop
Delta Logo
6:00 am - 2:05 pm
COS
-
IAD
6h 05m
1 stop
$300Delta
Mon, Aug 10 - Wed, Aug 19
Delta Logo
6:00 am - 10:47 am
IAD
-
COS
6h 47m
1 stop
Delta Logo
6:00 am - 2:05 pm
COS
-
IAD
6h 05m
1 stop
$304Delta
Tue, Aug 11 - Fri, Aug 21
Delta Logo
3:03 pm - 9:38 pm
IAD
-
COS
8h 35m
1 stop
Delta Logo
1:20 pm - 8:55 pm
COS
-
IAD
5h 35m
1 stop
$314Delta
Tue, Aug 11 - Tue, Aug 18
Delta Logo
6:00 am - 10:47 am
IAD
-
COS
6h 47m
1 stop
Delta Logo
6:00 am - 4:42 pm
COS
-
IAD
8h 42m
1 stop
$330Delta
Mon, Sep 21 - Wed, Sep 30
Delta Logo
12:31 pm - 10:54 pm
IAD
-
COS
12h 23m
2 stops
Delta Logo
6:00 am - 2:18 pm
COS
-
IAD
6h 18m
1 stop
$331Delta
Wed, Aug 26 - Wed, Sep 2
Delta Logo
11:10 am - 9:38 pm
IAD
-
COS
12h 28m
2 stops
Delta Logo
6:00 am - 2:05 pm
COS
-
IAD
6h 05m
1 stop
$335Delta
Wed, Sep 9 - Mon, Sep 14
Delta Logo
6:15 am - 10:02 am
IAD
-
COS
5h 47m
1 stop
Delta Logo
1:19 pm - 8:49 pm
COS
-
IAD
5h 30m
1 stop
$340Delta
Sat, Oct 24 - Fri, Oct 30
Delta Logo
6:00 am - 5:14 pm
IAD
-
COS
13h 14m
2 stops
Delta Logo
1:40 pm - 12:20 am
COS
-
IAD
8h 40m
1 stop
$345Delta
Booking Insights

KAYAK's insights & trends for Dulles Intl to Colorado Springs flights

Get data-powered insights and trends into flights from Dulles Intl to Colorado Springs to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Washington, D.C. Dulles Intl Airport to Colorado Springs?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Washington, D.C. Dulles Intl Airport to Colorado Springs departing in August.

What is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to Colorado Springs?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Washington, D.C. Dulles Intl Airport to Colorado Springs, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Washington, D.C. Dulles Intl Airport to Colorado Springs is September, where tickets cost $286 (return) on average. On the other hand, the most expensive months are May and December, where the average cost of round-trip tickets is $732 and $680 respectively.

Good to know

Low seasonOctober
Cheapest flight$170
Best time to beat the crowds with an average 23% drop in price.
Most popular time to fly with an average 50% increase in price.
Flight from Washington Dulles Airport to Colorado Springs

When to book flights from Dulles Intl to Colorado Springs

Are your dates flexible? Find out the best times to travel from Dulles Intl to Colorado Springs based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Washington Dulles Airport to Colorado Springs flights

  • What is the cheapest flight from Washington, D.C. Dulles Intl Airport to Colorado Springs?

    In the last 5 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to Colorado Springs was $170 for a one-way ticket and $261 for a round-trip.

  • Do I need a passport to fly between Washington Dulles Airport and Colorado Springs?

    No

  • Which airports will I be using when flying from Washington Dulles Airport to Colorado Springs?

    Washington Dulles Airport airport is called Washington, D.C. Dulles Intl and the only airport in Colorado Springs is Colorado Springs.

  • Which aircraft models fly most regularly from Washington Dulles Airport to Colorado Springs?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Washington Dulles Airport to Colorado Springs?

    Star Alliance is the only airline alliance operating flights between Washington Dulles Airport and Colorado Springs.

  • Which is the best airline for flights from Washington, D.C. to Colorado Springs, Southwest or United Airlines?

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to Colorado Springs are Southwest and United Airlines. With an average price for the route of $376 and an overall rating of 7.9, Southwest is the most popular choice. United Airlines is also a great choice for the route, with an average price of $540 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Washington Dulles Airport to Colorado Springs?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington Dulles Airport to Colorado Springs.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington Dulles Airport to Colorado Springs?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Colorado Springs from Washington Dulles Airport is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Washington Dulles Airport to Colorado Springs?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Colorado Springs with an airline and back to Washington Dulles Airport with another airline. Booking your flights between Washington Dulles Airport and COS can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington Dulles Airport to Colorado Springs?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Colorado Springs from Washington Dulles Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Dulles Intl to Colorado Springs

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Colorado Springs. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Dulles Intl to Colorado Springs? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
SouthwestOverall score based on 4235 reviews
8.0Comfort
7.0Food
8.6Crew
7.5Entertainment
8.1Boarding
Airline reviews

Flight was delayed over 3 hours. Planes were dirty. Staff indifferent. And they serve vegan pretzels as snacks.

2.0 MediocreMatthew, Jun 2026
CVG - MDW
Read more Southwest reviews

Flight was delayed over 3 hours. Planes were dirty. Staff indifferent. And they serve vegan pretzels as snacks.

It was great. The gate staff were very helpful in Portland when my son forgot his rolling bag and had to go back to get it just in time to make it on the plane. We really appreciate that. Great job!

Airline is not very senior friendly. Flights are late, forcing us to run to the connecting flight. Food is awful. Wish they would go back to pretzels and peanuts. During flight, pressurization isn’t quite right and all of our ears get plugged. Everything is nickel and dime, charging for boarding, seat selection and legroom. While a screen at the desk in the gate area says check your roll on bag now for free due to space limitation, the employee at the desk will not check the bag without a $100 fee. Insane.

Kayak could’ve posted the correct gate number. Almost missed my flight.

Slow boarding, limited food and drink portions. Bad delays and turbulence

there were two flight attendants that were up front...that were the best! They get KUDOs for making my trip only fantastic. Tell them Jeff said that!

OKay. I sat in the back of the plane and it was really loud between babies and little kids, and adults who.like to talk a lot and loudly most of the flight.

Flight coming out of Buffalo was delayed, so we had to be rescheduled on another flight from Baltimore to Phoenix which means we had a long layover and got home 3.5 hours late. Shuttle to parking stopped at 10pm, so we had to pay for an Uber to the parking lot and got charged an extra day of parking since it was after midnight. Not the best experience. Long day!

Was fine, delayed and feels like southwest is always late

I don't know why flying out of Sarasota requires two plane changes.

Like: departed and arrived on time. Unlike: Food options for purchase allways bad, 1 of 2 of the crew members not very friendly at all. Seats and leg room aweful. At this point I am thinking on switching to AA.

Our flight was canceled same day and we were never informed. Had to pay more and worse seating on another airline.

Did not like that we couldn't complete check in on-line without providing pictures of our passports. Worry about identity theft. We had no delays and boarding was handled In an efficient manner.

Excellent! I got to Munich and was transferred to my Lufthansa flight quickly, in 15 to 20 minutes, so I did not miss my flight. However, I had checked my overhead bag at the boarding gate in Tampa. That got to Tunis the next day. That is to be expected.

WiFi didn’t exist , seats were super cramped, lights stayed on near my seat for a long time while others were dimmed, the food/trash/drink cart hit my shoulder at least a couple of times while moving, food options were down to just one option by the time it got to my row, the utensils were garbage (knife bent at a couple of places by the time I was done eating) the spoon was very flimsy plastic

Vegetarian selection could be better. Bread was too hard to chew.

Crew was friendly and competent. Food, wine, and entertainment were excellent except the raw tuna on the flight to Split. Recommend against serving that - at least as the only option. Many medical conditions do not allow people to eat raw fish.

United didn’t even try to hold the flight for me. They knew I had a tight connection and when I arrived at the gate less than 10 mins after final boarding the flight had already gone. The gate agent wasn’t even notified that I was on my way. She was told I wasn’t at the airport

Good quick flight on a small but comfortable plane. I'm 6'3 and had plenty of space.

The flight was delayed so we were dead tired, and after that the turbulence was horrible. I was very scared.

Everything you need to know for your flight from Dulles Intl to Colorado Springs

Information on your arrival and departure airports