How does KAYAK find such low prices on flights from Colorado to Washington, D.C.?

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 Colorado to Washington, D.C..

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Colorado to Washington, D.C.?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington, D.C. from Colorado 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 Colorado to Washington, D.C.?

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 Washington, D.C. with an airline and back to Colorado with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Colorado to Washington, D.C.?

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 Washington, D.C. from Colorado up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

$87 CHEAP FLIGHTS from Colorado to Washington, D.C.

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Flight Deals

Cheap Flights from Colorado to Washington, D.C.

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Direct

Recent round-trip flight deals from Colorado to Washington, D.C.

Mon, Nov 2 - Thu, Nov 5

9:19 pm - 11:43 pmDEN Denver Intl-IAD Washington, D.C. Dulles Intl

24h 24m2 stops Dallas/Fort Worth Atlanta Hartsfield-Jackson

9:06 pm - 12:08 pmIAD Washington, D.C. Dulles Intl-DEN Denver Intl

17h 02m2 stops Atlanta Hartsfield-Jackson Dallas/Fort Worth

$248Frontier

Mon, Oct 19 - Fri, Oct 30

8:45 pm - 6:20 amDEN Denver Intl-IAD Washington, D.C. Dulles Intl

7h 35m1 stop Las Vegas Harry Reid Intl

9:06 pm - 8:22 amIAD Washington, D.C. Dulles Intl-DEN Denver Intl

13h 16m1 stop Atlanta Hartsfield-Jackson

$248Frontier

Thu, Oct 15 - Wed, Oct 21

7:34 pm - 3:29 pmDEN Denver Intl-IAD Washington, D.C. Dulles Intl

17h 55m1 stop Valparaiso Destin-Ft Walton Beach

9:06 pm - 11:57 amIAD Washington, D.C. Dulles Intl-DEN Denver Intl

16h 51m2 stops Atlanta Hartsfield-Jackson Dallas/Fort Worth

$254Multiple Airlines

Thu, Oct 29 - Sun, Nov 1

7:34 pm - 2:45 pmDEN Denver Intl-IAD Washington, D.C. Dulles Intl

17h 11m1 stop Valparaiso Destin-Ft Walton Beach

9:06 pm - 9:30 pmIAD Washington, D.C. Dulles Intl-DEN Denver Intl

26h 24m2 stops Atlanta Hartsfield-Jackson Lambert-St Louis

$260Multiple Airlines

Sat, Oct 17 - Sat, Oct 24

5:30 am - 10:50 amDEN Denver Intl-BWI Baltimore/Washington

3h 20mnonstop

5:45 pm - 10:10 pmBWI Baltimore/Washington-DEN Denver Intl

6h 25m1 stop Nashville Intl

$261Southwest

Wed, Oct 21 - Wed, Oct 21

6:20 am - 2:50 pmDEN Denver Intl-BWI Baltimore/Washington

6h 30m1 stop Dallas Love Field

8:40 pm - 10:40 pmBWI Baltimore/Washington-DEN Denver Intl

4h 00mnonstop

$261Southwest

Wed, Nov 11 - Wed, Nov 18

4:14 pm - 11:23 pmDEN Denver Intl-BWI Baltimore/Washington

5h 09m1 stop Minneapolis St Paul

7:01 am - 12:20 pmBWI Baltimore/Washington-DEN Denver Intl

7h 19m1 stop Minneapolis St Paul

$271Delta

Wed, Nov 11 - Tue, Nov 17

7:10 am - 3:44 pmDEN Denver Intl-BWI Baltimore/Washington

6h 34m1 stop Atlanta Hartsfield-Jackson

8:08 am - 1:19 pmBWI Baltimore/Washington-DEN Denver Intl

7h 11m1 stop Atlanta Hartsfield-Jackson

$271Delta

Sat, Oct 17 - Tue, Oct 20

1:25 pm - 10:59 pmDEN Denver Intl-BWI Baltimore/Washington

7h 34m1 stop Chicago O'Hare Intl

5:29 pm - 9:44 pmBWI Baltimore/Washington-DEN Denver Intl

6h 15m1 stop Chicago O'Hare Intl

$271United Airlines

Thu, Dec 31 - Wed, Jan 6

5:48 pm - 11:14 pmDEN Denver Intl-BWI Baltimore/Washington

3h 26mnonstop

4:10 pm - 6:07 pmBWI Baltimore/Washington-DEN Denver Intl

3h 57mnonstop

$272United Airlines

Recent last minute flight deals from Colorado to Washington, D.C.

Tue, Sep 29 - Mon, Oct 5

11:23 am - 4:59 pmDEN Denver Intl-DCA Washington, D.C. Reagan-National

3h 36mnonstop

7:00 am - 9:03 amDCA Washington, D.C. Reagan-National-DEN Denver Intl

4h 03mnonstop

$279Frontier

Tue, Sep 29 - Tue, Oct 6

11:23 am - 4:59 pmDEN Denver Intl-DCA Washington, D.C. Reagan-National

3h 36mnonstop

6:00 pm - 7:52 pmDCA Washington, D.C. Reagan-National-DEN Denver Intl

3h 52mnonstop

$300Frontier

Tue, Sep 29 - Mon, Oct 5

6:00 am - 1:58 pmDEN Denver Intl-BWI Baltimore/Washington

5h 58m1 stop Chicago O'Hare Intl

8:37 am - 10:35 amBWI Baltimore/Washington-DEN Denver Intl

3h 58mnonstop

$336United Airlines

Fri, Oct 2 - Mon, Oct 5

9:19 pm - 11:33 amDEN Denver Intl-IAD Washington, D.C. Dulles Intl

12h 14m1 stop Dallas/Fort Worth

6:36 pm - 7:52 amIAD Washington, D.C. Dulles Intl-DEN Denver Intl

15h 16m2 stops Blountville Tri Cities TN/VA Orlando

$339Multiple Airlines

Thu, Oct 1 - Mon, Oct 5

6:38 pm - 6:20 amDEN Denver Intl-IAD Washington, D.C. Dulles Intl

9h 42m1 stop Las Vegas Harry Reid Intl

6:36 pm - 7:52 amIAD Washington, D.C. Dulles Intl-DEN Denver Intl

15h 16m2 stops Blountville Tri Cities TN/VA Orlando

$346Multiple Airlines

Fri, Oct 2 - Fri, Oct 16

11:52 pm - 5:17 amDEN Denver Intl-IAD Washington, D.C. Dulles Intl

3h 25mnonstop

10:34 pm - 12:30 amIAD Washington, D.C. Dulles Intl-DEN Denver Intl

3h 56mnonstop

$444United Airlines

Thu, Oct 1 - Mon, Oct 5

10:30 am - 7:50 pmDEN Denver Intl-DCA Washington, D.C. Reagan-National

7h 20m1 stop Chicago Midway

6:00 am - 9:10 amDCA Washington, D.C. Reagan-National-DEN Denver Intl

5h 10m1 stop Kansas City

$448Southwest

Mon, Sep 28 - Mon, Oct 5

1:40 pm - 10:25 pmDEN Denver Intl-DCA Washington, D.C. Reagan-National

6h 45m1 stop Houston Hobby

7:35 pm - 10:40 pmDCA Washington, D.C. Reagan-National-DEN Denver Intl

5h 05m1 stop Kansas City

$448Southwest

Mon, Sep 28 - Thu, Nov 19

12:10 pm - 9:43 pmDEN Denver Intl-DCA Washington, D.C. Reagan-National

7h 33m1 stop Atlanta Hartsfield-Jackson

7:59 am - 1:19 pmDCA Washington, D.C. Reagan-National-DEN Denver Intl

7h 20m1 stop Atlanta Hartsfield-Jackson

$464Delta

Tue, Sep 29 - Tue, Oct 6

12:10 pm - 7:32 pmDEN Denver Intl-DCA Washington, D.C. Reagan-National

5h 22m1 stop Atlanta Hartsfield-Jackson

6:08 am - 11:04 amDCA Washington, D.C. Reagan-National-DEN Denver Intl

6h 56m1 stop New York John F Kennedy Intl

$494Delta

Recent direct flight deals from Colorado to Washington, D.C.

Mon, Oct 26 - Tue, Oct 27

5:00 am - 10:20 amDEN Denver Intl-BWI Baltimore/Washington

3h 20mnonstop

6:25 am - 8:20 amBWI Baltimore/Washington-DEN Denver Intl

3h 55mnonstop

$272Southwest

Mon, Oct 19 - Wed, Oct 21

5:00 am - 10:20 amDEN Denver Intl-BWI Baltimore/Washington

3h 20mnonstop

6:25 am - 8:20 amBWI Baltimore/Washington-DEN Denver Intl

3h 55mnonstop

$272Southwest

Thu, Dec 31 - Wed, Jan 6

5:48 pm - 11:14 pmDEN Denver Intl-BWI Baltimore/Washington

3h 26mnonstop

4:10 pm - 6:07 pmBWI Baltimore/Washington-DEN Denver Intl

3h 57mnonstop

$272United Airlines

Tue, Nov 10 - Thu, Nov 12

7:25 pm - 12:50 amDEN Denver Intl-BWI Baltimore/Washington

3h 25mnonstop

9:50 pm - 11:55 pmBWI Baltimore/Washington-DEN Denver Intl

4h 05mnonstop

$272Southwest

Wed, Oct 21 - Thu, Oct 29

5:40 am - 11:00 amDEN Denver Intl-BWI Baltimore/Washington

3h 20mnonstop

6:15 am - 8:10 amBWI Baltimore/Washington-DEN Denver Intl

3h 55mnonstop

$272Southwest

Wed, Oct 21 - Sat, Oct 24

4:33 pm - 9:59 pmDEN Denver Intl-DCA Washington, D.C. Reagan-National

3h 26mnonstop

1:00 pm - 3:04 pmDCA Washington, D.C. Reagan-National-DEN Denver Intl

4h 04mnonstop

$285Frontier

Sat, Nov 7 - Tue, Nov 10

4:35 pm - 9:50 pmDEN Denver Intl-DCA Washington, D.C. Reagan-National

3h 15mnonstop

7:00 am - 9:16 amDCA Washington, D.C. Reagan-National-DEN Denver Intl

4h 16mnonstop

$285Frontier

Tue, Nov 10 - Sat, Nov 14

4:35 pm - 9:50 pmDEN Denver Intl-DCA Washington, D.C. Reagan-National

3h 15mnonstop

7:00 am - 9:16 amDCA Washington, D.C. Reagan-National-DEN Denver Intl

4h 16mnonstop

$285Frontier

Thu, Oct 15 - Tue, Oct 20

6:08 pm - 11:44 pmDEN Denver Intl-BWI Baltimore/Washington

3h 36mnonstop

4:13 pm - 6:08 pmBWI Baltimore/Washington-DEN Denver Intl

3h 55mnonstop

$327United Airlines

Sat, Oct 31 - Sun, Nov 1

11:59 pm - 5:19 amDEN Denver Intl-IAD Washington, D.C. Dulles Intl

3h 20mnonstop

6:10 am - 8:19 amIAD Washington, D.C. Dulles Intl-DEN Denver Intl

4h 09mnonstop

$354United Airlines

Useful Info

Low season	August
High season	October
Cheapest flight	$87

Best time to beat the crowds with an average 7% drop in price.

Flight from Denver to Baltimore

NguyenFlew with United Airlines-Mar 2026

Check in desk immediately when you come in the doors on the left of door 215. Get TSA touchless before the flight—the line is so much shorter.

NesrinFlew with Southwest-Feb 2026

Get a seat in the very front if you can, otherwise, it is a very slow process.

JasonFlew with United Airlines-Nov 2024

DIA is a large airport. Get there early.

BindulFlew with United Airlines-Feb 2024

There are multiple flights between DEN and IAD everyday, including some wide bodies. Try and get on one of the wide bodies whenever possible.

How does KAYAK find such low prices on flights from Colorado to Washington, D.C.?
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 Colorado to Washington, D.C..
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Colorado to Washington, D.C.?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington, D.C. from Colorado 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 Colorado to Washington, D.C.?
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 Washington, D.C. with an airline and back to Colorado with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Colorado to Washington, D.C.?
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 Washington, D.C. from Colorado up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Linthicum Heights

Hanover

Springfield

Gaithersburg

Towson

Oxon Hill

Owings Mills

Greenbelt

Glen Burnie

Edgewood

Chesapeake Beach

Camp Springs

Ellicott City

Pikesville

Hunt Valley

Colonial Beach

Capitol Heights

Lutherville Timonium

Westminster

Clinton

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$87 Find Cheap Flights from Colorado to Washington, D.C. - Compare and Save

Cheap Flights from Colorado to Washington, D.C.

Recent round-trip flight deals from Colorado to Washington, D.C.

Recent one-way flight deals from Colorado to Washington, D.C.

Recent last minute flight deals from Colorado to Washington, D.C.

Recent direct flight deals from Colorado to Washington, D.C.

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Flights from Colorado to Washington, D.C.: the best tips from KAYAK users

FAQs for booking flights from Colorado to Washington, D.C.

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Complete your trip to Washington, D.C. with a hotel stay or car rental

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