Dulles to Colorado Springs (IAD–COS) — Airlines, Schedules & Connections

IAD Airport Page →
1,460 mi airlines charter/private 1/wk
On-time Some delays Frequent delays
Connecting Flight Schedule 12 1-stop flights Verified 2w ago
Also flown by charter / private operators: NetJets Aviation.
Nonstop Charter / private 1-Stop 2-Stop Hide separate tickets Hide overnight Hide codeshares
  Flight Airline AC Dep Arr Dur OTP Sched  
✈ Nonstop

No flights match your filters.

No scheduled airline flights on this route — it's flown by charter / private operators (). No nonstop flights on this route. connecting options below.

✦ 1-Stop connections via 10 hubs
DEN Denver 5h 32m AVAZCM → ACASCM Denver (DEN) to Colorado Springs flights
ATL Atlanta 5h 49m AFAMCM → AFAMDL Atlanta (ATL) to Colorado Springs flights
ORD Chicago 6h 6m ACAVAZ → AAQRUA Chicago (ORD) to Colorado Springs flights
DFW Dallas-Fort Worth 6h 12m AAASAT → AABAG3 Dallas-Fort Worth (DFW) to Colorado Springs flights
IAH Houston 7h 11m AVAZCA → EKUA Houston (IAH) to Colorado Springs flights
PHX Phoenix 7h 32m AVOSSN → WN Phoenix (PHX) to Colorado Springs flights
LAS Las Vegas 7h 49m AZETF9 → WNWUP Las Vegas (LAS) to Colorado Springs flights
SAN San Diego 8h 50m ASAZET → EJAWN San Diego (SAN) to Colorado Springs flights
SLC Salt Lake City 12h 28m AMDLKE → DLKEVS Salt Lake City (SLC) to Colorado Springs flights
SNA Santa Ana 21h 31m UA → G4 Santa Ana (SNA) to Colorado Springs flights
✦ 1-STOP More options, longer trips
✧ 2-STOP Loading... Reach the hardest destinations
Dulles to Colorado Springs
Connecting service available through multiple hubs.
1 Airlines 1,460 mi 5h 11m nonstop -2h behind

IAD–COS had nonstop service from United Airlines, last on the schedule in August 2026. There's no nonstop on it right now, so today you'd fly it with one stop. The connecting options below are sorted by layover. Nonstop, it's about 1,460 miles in 5h 11m.

Also explore Browse available seat maps IAD Routes COS Routes IAD Live Flights COS Live Flights IAD Delays COS Delays
All flights from Colorado Springs (COS) Colorado Springs to Dulles flights
Carriers on this route

Airline Landscape

Carriers that operated nonstop IAD–COS service, compared side by side.
Airline Freq/wk Aircraft Duration Dep OTP Alliance Codeshares
UA United Airlines 1 – – 83% Star Alliance –
Alliance coverage
Star Alliance: UA (1 flights/wk, 100%)
OTP based on airport-level delay snapshots. Duration ranges reflect seasonal/directional variation.
Connections

Connection Landscape

1-stop and 2-stop options for IAD to COS.
1-STOP
One-Stop Connections
12
Hubs
~5h
Fastest
~21h
Longest
DEN ~5h 32m ATL ~5h 49m ORD ~6h 6m DFW ~6h 12m MSP ~6h 47m
Verified with published schedule alignment and minimum connection time.
2-STOP
Two-Stop Connections
1,003
Candidates
Two-stop connections loaded in the connections tab above.
Connections computed from published schedules with minimum connection time verification. Use the interactive explorer above the fold to filter by airline, tier, and layover time.
Reliability

On-Time Performance

What to expect at each end of your journey.
Outbound
IAD → COS
83%
Generally reliable. Most flights run on time.
Departing
83%
Arriving
76%
Return
COS → IAD
51%
Frequent delays expected. Consider flexible booking.
Departing
51%
Arriving
77%
OTP = percentage of flights arriving within 15 min of schedule. Based on airport-level delay snapshots. IAD delays → COS delays →
Alternatives

Other ways to reach Colorado Springs from Dulles

Nearby airports with service to City of Colorado Springs Municipal Airport.
Metric IAD→COS BWI→COS RIC→COS
Distance from IAD – 45 mi 100 mi
Nonstop airlines – 3 1
Weekly flights – – –
Flight time 5h 11m 3h 4h 8m
Departure OTP 83% – –
Baltimore (BWI) to Colorado Springs flights · Richmond (RIC) to Colorado Springs flights
Airports within 200 miles of IAD with service to City of Colorado Springs Municipal Airport.
Know before you go

Travel Essentials

Practical planning for this route.
Time Difference
-2h
Colorado Springs is 2 hours behind Dulles.
IAD: EDT · COS: MDT

When it's 6:00 PM in Dulles, it's 4:00 PM in Colorado Springs.
Distance & Flight Time
1,460 mi / 2,350 km
Nonstop flight time is approximately 5h 11m gate to gate.
Getting to IAD

WMATA Silver Line Metro now reaches Dulles directly; take Silver Line to Washington Dulles Airport station (about 65 min from Metro Center, ~$7). The connection opened in late 2022.Ride-shares from downtown DC run $35–60 and take 35–50 minutes via I-66 (longer during peak hours). Washington Flyer coach to Wiehle-Reston East Metro costs $6. The airport is 27 miles from downtown; taxis are expensive ($60–80).

Facts

IAD–COS Quick Facts

Key statistics for the Dulles to Colorado Springs route.
Route details
Distance1,460 mi / 2,350 km
Flight time5h 11m
Time difference-2 hours
Airlines (nonstop)1
1-stop connectionsAvailable
Origin: IAD
Full nameWashington Dulles International Airport
IATA / ICAOIAD / KIAD
TimezoneAmerica/New_York
Passengers/yr26.0M
Elevation312 ft / 95 m
Destination: COS
Full nameCity of Colorado Springs Municipal Airport
IATA / ICAOCOS / KCOS
TimezoneAmerica/Denver
Passengers/yr2.5M
Elevation6,187 ft / 1,886 m
FAQ

Frequently Asked Questions

Common questions about IAD to COS flights.
Nonstop flights from Washington Dulles International Airport to City of Colorado Springs Municipal Airport take about 5h 11m gate to gate. The route covers 1,460 miles.
1 airline operated the nonstop from IAD to COS: United Airlines. The last scheduled nonstop was in August 2026. There's no nonstop right now, so today you'd fly it with one stop. See the connection options above, ranked by layover.
Not right now. The last scheduled nonstop was in August 2026. You can still fly it with one stop, and the connecting options above are sorted by layover. Nonstop, the hop took about 5h 11m.
Yes, 1-stop connections are available, ranked by layover time. Common connecting points include Denver, Hartsfield Jackson Atlanta and Chicago O'Hare.
On a single ticket, yes. Your bags are checked through to COS and move between planes without you. On two separate tickets you collect your bags at the connecting airport and recheck them, so build in extra layover time.
Colorado Springs is 2 hours behind Dulles.
Yes, return flights from COS to IAD are available. Use the direction toggle at the top to view the return schedule.
Nearby alternatives include BWI and RIC. See the Alternatives section for a full comparison.
Click the 'Search Flights' button to check availability and prices on Google Flights. You can also compare airlines and schedules on this page to find the best option.
See the On-Time Performance section for the latest delay data at both airports. This shows departure and arrival reliability to help you plan.
Route data is updated regularly from official airline schedules. On-time performance data comes from recent airport delay snapshots.

Flights from IAD to COS

Washington Dulles International Airport (IAD) and City of Colorado Springs Municipal Airport (COS) had nonstop service from United Airlines, last on the schedule in August 2026. The nonstop is dormant right now, so the way to fly it today is one connection, and the options above are sorted by layover.

IAD to COS Flight Duration and Schedule

Nonstop flight time from IAD to COS is about 5 hours 11 minutes gate to gate. The route covers a distance of 1,460 miles (2,350 km).

Connecting Options and Alternatives

1-stop connecting options are also available, commonly via Denver, Hartsfield Jackson Atlanta and Chicago O'Hare. Two-stop connections are also available via intermediate hubs. Nearby alternative airports include Baltimore (BWI) and Richmond (RIC).