$136+ Cheap flights from Colorado to Maryland
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/29. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — BWI
Aug 30 — Sep 61
Round-trip
1 adult, Economy
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Find cheap flights from Colorado to Maryland with Cheapflights
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Cheapest flights from Colorado to MarylandExplore the most affordable flight options available from Colorado to Maryland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2026.
Explore the most affordable flight options available from Colorado to Maryland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2026.
This Frontier deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2911:59 pm
DEN
- PHL
Nonstop3h 40m
Frontier
Wed 9/96:00 am
PHL
- DEN
1 stop12h 01m
Frontier
Deal found 7/29![Frontier logo]()
$229
This Frontier deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2011:59 pm
DEN
- PHL
Nonstop3h 40m
Frontier
Tue 9/18:37 pm
PHL
- DEN
Nonstop4h 27m
Frontier
Deal found 7/29![Frontier logo]()
$230
This Kiwi.com deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/510:43 am
DEN
- IAD
1 stop10h 09m
Frontier
Mon 9/79:44 pm
IAD
- DEN
2 stops36h 20m
Frontier
Deal found 7/30![Frontier logo]()
$231
This Cheapflightsfares deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/911:59 pm
DEN
- PHL
Nonstop3h 37m
Frontier
Tue 10/138:44 pm
PHL
- DEN
Nonstop4h 20m
Frontier
Deal found 7/29![Frontier logo]()
$231
This Kiwi.com deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2110:09 am
DEN
- IAD
1 stop6h 20m
Frontier
Sun 8/238:59 am
IAD
- DEN
1 stop20h 49m
Frontier
Deal found 7/30![Frontier logo]()
$232
This Kiwi.com deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/169:16 pm
DEN
- PHL
2 stops24h 26m
Frontier
Sat 9/1912:40 pm
PHL
- DEN
1 stop10h 44m
Frontier
Deal found 7/26![Frontier logo]()
$232
This Kiwi.com deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/179:19 pm
DEN
- IAD
1 stop12h 14m
Frontier
Sun 9/279:04 pm
IAD
- DEN
1 stop13h 00m
Frontier
Deal found 7/29![Frontier logo]()
$233
This Frontier deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/24:32 pm
DEN
- DCA
Nonstop3h 26m
Frontier
Wed 11/117:00 am
DCA
- DEN
Nonstop4h 04m
Frontier
Deal found 7/29![Frontier logo]()
$233
This Kiwi.com deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/219:16 pm
DEN
- PHL
2 stops18h 58m
Frontier
Tue 9/2912:40 pm
PHL
- DEN
1 stop10h 23m
Frontier
Deal found 7/28![Frontier logo]()
$233
This Priceline deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/276:30 am
DEN
- IAD
1 stop8h 44m
Frontier
Sat 8/294:52 pm
IAD
- DEN
1 stop8h 08m
Frontier
Deal found 7/29![Frontier logo]()
$234
This Flightnetwork deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/124:28 pm
DEN
- DCA
Nonstop3h 31m
Frontier
Sat 9/191:06 pm
DCA
- DEN
Nonstop3h 51m
Frontier
Deal found 7/29![Frontier logo]()
$234
This Expedia deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/111:37 pm
DEN
- PHL
1 stop6h 45m
Multiple Airlines
Mon 9/76:30 am
PHL
- DEN
1 stop9h 31m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$234
Best flights from Colorado to MarylandDiscover carefully curated flight deals from Colorado to Maryland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 31, 2026.
Discover carefully curated flight deals from Colorado to Maryland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 31, 2026.
This JetBlue deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/262:04 pm
DEN
- DCA
1 stop6h 55m
JetBlue
Sat 9/52:15 pm
DCA
- DEN
1 stop10h 27m
JetBlue
Deal found 7/25![JetBlue logo]()
$290
This United Airlines deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/221:45 pm
DEN
- PHL
Nonstop3h 40m
United Airlines
Tue 9/298:00 am
PHL
- DEN
Nonstop4h 02m
United Airlines
Deal found 7/30![United Airlines logo]()
$307
This Alaska Airlines deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/61:55 pm
DEN
- BWI
2 stops13h 45m
Alaska Airlines
Wed 11/117:00 am
BWI
- DEN
2 stops17h 50m
Alaska Airlines
Deal found 7/30![Alaska Airlines logo]()
$313
This Southwest deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/25:55 pm
DEN
- PHL
Nonstop3h 25m
Southwest
Mon 12/75:05 am
PHL
- DEN
Nonstop4h 20m
Southwest
Deal found 7/28![Southwest logo]()
$314
This Delta deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/176:30 am
DEN
- IAD
1 stop8h 00m
Delta
Wed 9/236:47 pm
IAD
- DEN
1 stop6h 48m
Delta
Deal found 7/27![Delta logo]()
$339
This American Airlines deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1112:40 pm
DRO
- IAD
2 stops21h 16m
American Airlines
Mon 9/286:15 pm
IAD
- DRO
2 stops17h 33m
American Airlines
Deal found 7/25![American Airlines logo]()
$458
This JetBlue deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2211:37 pm
DEN
- DCA
1 stop6h 21m
JetBlue
Thu 8/272:25 pm
DCA
- DEN
1 stop10h 17m
JetBlue
Deal found 7/29![JetBlue logo]()
$306
This United Airlines deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/231:45 pm
DEN
- PHL
Nonstop3h 40m
United Airlines
Mon 9/288:00 am
PHL
- DEN
Nonstop4h 02m
United Airlines
Deal found 7/27![United Airlines logo]()
$314
This Southwest deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/17:30 pm
DEN
- PHL
Nonstop3h 30m
Southwest
Mon 10/55:20 am
PHL
- DEN
Nonstop4h 05m
Southwest
Deal found 7/29![Southwest logo]()
$321
This JetBlue deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/2511:37 pm
DEN
- DCA
1 stop10h 24m
JetBlue
Thu 8/272:25 pm
DCA
- DEN
1 stop10h 17m
JetBlue
Deal found 7/29![JetBlue logo]()
$306
This Delta deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2812:59 am
DEN
- DCA
1 stop5h 37m
Delta
Fri 9/45:39 pm
DCA
- DEN
1 stop7h 09m
Delta
Deal found 7/25![Delta logo]()
$339
This United Airlines deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/268:00 am
DEN
- IAD
Nonstop3h 29m
United Airlines
Mon 8/318:15 am
IAD
- DEN
Nonstop3h 54m
United Airlines
Deal found 7/30![United Airlines logo]()
$319
This Southwest deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/267:15 am
DEN
- DCA
1 stop4h 50m
Southwest
Wed 9/304:50 pm
DCA
- DEN
1 stop5h 00m
Southwest
Deal found 7/27![Southwest logo]()
$324
This Delta deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/511:27 am
COS
- PHL
2 stops10h 15m
Delta
Wed 9/92:31 pm
PHL
- COS
1 stop7h 25m
Delta
Deal found 7/27![Delta logo]()
$348
This United Airlines deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/166:00 am
DEN
- IAD
Nonstop3h 25m
United Airlines
Sun 10/1810:34 pm
IAD
- DEN
Nonstop3h 56m
United Airlines
Deal found 7/30![United Airlines logo]()
$319
This Southwest deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/297:15 am
DEN
- DCA
1 stop4h 50m
Southwest
Wed 9/24:50 pm
DCA
- DEN
1 stop5h 00m
Southwest
Deal found 7/29![Southwest logo]()
$324
This Alaska Airlines deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/176:17 am
DEN
- BWI
2 stops22h 13m
Alaska Airlines
Wed 9/234:43 pm
BWI
- DEN
1 stop31h 03m
Alaska Airlines
Deal found 7/27![Alaska Airlines logo]()
$406
This United Airlines deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/223:45 pm
DEN
- IAD
Nonstop3h 26m
United Airlines
Sat 10/245:27 pm
IAD
- DEN
Nonstop4h 03m
United Airlines
Deal found 7/28![United Airlines logo]()
$319
This Delta deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/76:00 am
COS
- IAD
1 stop6h 08m
Delta
Tue 10/133:03 pm
IAD
- COS
1 stop7h 13m
Delta
Deal found 7/26![Delta logo]()
$355
This Southwest deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/128:40 am
DEN
- PHL
1 stop8h 05m
Southwest
Tue 11/175:10 pm
PHL
- DEN
Nonstop4h 15m
Southwest
Deal found 7/29![Southwest logo]()
$324
This Delta deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/26:00 am
COS
- IAD
1 stop8h 42m
Delta
Tue 9/83:15 pm
IAD
- COS
1 stop6h 41m
Delta
Deal found 7/26![Delta logo]()
$355
This Southwest deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/15:00 am
DEN
- BWI
Nonstop3h 20m
Southwest
Sat 10/311:45 am
BWI
- DEN
1 stop6h 20m
Southwest
Deal found 7/29![Southwest logo]()
$325
This United Airlines deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1011:59 pm
DEN
- IAD
Nonstop3h 26m
United Airlines
Mon 9/1412:50 pm
IAD
- DEN
Nonstop3h 45m
United Airlines
Deal found 7/28![United Airlines logo]()
$339
This Delta deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/101:26 pm
COS
- DCA
1 stop8h 22m
Delta
Tue 10/206:59 am
DCA
- COS
1 stop7h 31m
Delta
Deal found 7/29![Delta logo]()
$355
This Southwest deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/98:05 am
DEN
- BWI
Nonstop3h 30m
Southwest
Wed 9/1612:10 pm
BWI
- DEN
1 stop5h 00m
Southwest
Deal found 7/26![Southwest logo]()
$325
This American Airlines deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/306:03 am
DRO
- IAD
2 stops12h 21m
American Airlines
Tue 10/612:28 pm
IAD
- DRO
2 stops10h 53m
American Airlines
Deal found 7/30![American Airlines logo]()
$535
This United Airlines deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/136:00 am
DEN
- IAD
Nonstop3h 24m
United Airlines
Mon 8/174:15 pm
IAD
- DEN
Nonstop4h 00m
United Airlines
Deal found 7/27![United Airlines logo]()
$349
This Delta deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/101:26 pm
COS
- DCA
1 stop8h 22m
Delta
Sat 10/248:00 am
DCA
- COS
1 stop6h 21m
Delta
Deal found 7/29![Delta logo]()
$355
This Southwest deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/111:10 pm
DEN
- BWI
Nonstop3h 25m
Southwest
Sat 9/122:35 pm
BWI
- DEN
1 stop6h 05m
Southwest
Deal found 7/29![Southwest logo]()
$327
This United Airlines deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/27:55 am
COS
- IAD
1 stop6h 07m
United Airlines
Tue 9/86:15 am
IAD
- COS
1 stop6h 32m
United Airlines
Deal found 7/30![United Airlines logo]()
$355
Last-minute flights from Colorado to MarylandDiscover last-minute flight deals from Colorado to Maryland. Data last updated July 31, 2026 and is based on user searches.
Discover last-minute flight deals from Colorado to Maryland. Data last updated July 31, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/176:05 am
DEN
- PHL
Nonstop3h 44m
Frontier
Wed 8/194:45 pm
PHL
- DEN
2 stops17h 29m
Frontier
Deal found 7/26![Frontier logo]()
$232
This Kiwi.com deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1811:59 pm
DEN
- IAD
1 stop8h 08m
Frontier
Mon 8/316:20 am
IAD
- DEN
1 stop9h 41m
Frontier
Deal found 7/30![Frontier logo]()
$236
This Frontier deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2011:59 pm
DEN
- PHL
Nonstop3h 40m
Frontier
Tue 9/18:37 pm
PHL
- DEN
Nonstop4h 27m
Frontier
Deal found 7/29![Frontier logo]()
$230
This deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2010:09 am
DEN
- IAD
1 stop6h 20m
Frontier
Mon 8/247:24 pm
IAD
- DEN
1 stop6h 51m
Frontier
Deal found 7/30![Frontier logo]()
$234
This CheapOair deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2011:37 pm
DEN
- PHL
1 stop6h 45m
Multiple Airlines
Tue 8/258:37 pm
PHL
- DEN
Nonstop4h 27m
Multiple Airlines
Deal found 7/25![Multiple Airlines logo]()
$236
This Kiwi.com deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2110:09 am
DEN
- IAD
1 stop6h 20m
Frontier
Sun 8/238:59 am
IAD
- DEN
1 stop20h 49m
Frontier
Deal found 7/30![Frontier logo]()
$232
This Frontier deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/246:30 am
DEN
- IAD
1 stop8h 44m
Frontier
Mon 8/247:24 pm
IAD
- DEN
1 stop6h 51m
Frontier
Deal found 7/29![Frontier logo]()
$235
This Kiwi.com deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/251:38 pm
DEN
- PHL
1 stop5h 42m
Frontier
Tue 9/14:45 pm
PHL
- DEN
1 stop7h 20m
Frontier
Deal found 7/28![Frontier logo]()
$233
This Kiwi.com deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2611:59 pm
DEN
- PHL
Nonstop3h 40m
Frontier
Sun 9/68:37 pm
PHL
- DEN
Nonstop4h 27m
Frontier
Deal found 7/28![Frontier logo]()
$231
This Frontier deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2711:59 pm
DEN
- PHL
Nonstop3h 40m
Frontier
Fri 8/288:00 am
PHL
- DEN
1 stop12h 00m
Frontier
Deal found 7/25![Frontier logo]()
$234
This Frontier deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2911:59 pm
DEN
- PHL
Nonstop3h 40m
Frontier
Wed 9/96:00 am
PHL
- DEN
1 stop12h 01m
Frontier
Deal found 7/29![Frontier logo]()
$229
This Trip.com deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2911:59 pm
DEN
- PHL
Nonstop3h 40m
Frontier
Sat 9/123:35 pm
PHL
- DEN
1 stop8h 33m
Frontier
Deal found 7/29![Frontier logo]()
$235
One-way flights from Colorado to MarylandSearch for one-way flight options from Colorado to Maryland. Find affordable one-way fares based on user searches. Data last updated July 31, 2026.
Search for one-way flight options from Colorado to Maryland. Find affordable one-way fares based on user searches. Data last updated July 31, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/297:00 am
DEN
- BWI
2 stops11h 03m
Frontier
Deal found 7/29![Frontier logo]()
$136
This Expedia deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/21:43 pm
DEN
- BWI
2 stops14h 47m
Alaska Airlines
Deal found 7/28![Alaska Airlines logo]()
$137
This Kiwi.com deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/127:10 pm
DEN
- PHL
1 stop26h 08m
Frontier
Deal found 7/28![Frontier logo]()
$137
This Priceline deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/114:28 pm
DEN
- DCA
Nonstop3h 31m
Frontier
Deal found 7/30![Frontier logo]()
$139
This Booking.com deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/411:59 pm
DEN
- BWI
1 stop8h 46m
Frontier
Deal found 7/29![Frontier logo]()
$139
This Kiwi.com deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/179:16 pm
DEN
- PHL
2 stops18h 58m
Frontier
Deal found 7/29![Frontier logo]()
$139
This Kiwi.com deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/64:00 pm
DEN
- BWI
2 stops37h 26m
Frontier
Deal found 7/30![Frontier logo]()
$140
This Kiwi.com deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/276:22 am
DEN
- PHL
2 stops12h 06m
Frontier
Deal found 7/26![Frontier logo]()
$140
This Kiwi.com deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/710:49 pm
DEN
- BWI
1 stop19h 14m
Frontier
Deal found 7/30![Frontier logo]()
$141
This Kiwi.com deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/266:09 am
DEN
- PHL
2 stops16h 00m
Frontier
Deal found 7/27![Frontier logo]()
$141
This Kiwi.com deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/195:05 am
DEN
- IAD
2 stops10h 09m
Frontier
Deal found 7/29![Frontier logo]()
$142
This Super.com deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1710:00 am
DEN
- BWI
1 stop6h 33m
Frontier
Deal found 7/27![Frontier logo]()
$142
Find flight deals from Colorado to Maryland
Keep the following information in mind while searching for Colorado to Maryland flight deals. Data was last updated July 31, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $229 (Frontier) |
One-way from | $136 (Kiwi.com) |
Popular in | June |
Cheapest in | January |
Average price | $422 |
Good round-trip deal | $355 or less |
Good one-way deal | $214 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Colorado to Maryland 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, Cheapflights users made 2,558,603 searches. Data last updated July 31, 2026.
Use the filters below to find and compare flights from Colorado to Maryland that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
DenverWashington, D.C.
DEN - DCA
DENDCA
Denver Intl
Wed 8/26
2:04 pm-10:59 pm
1 stop6h 55m
Washington, D.C. Reagan-National
Sat 9/5
2:15 pm-10:42 pm
1 stop10h 27m
$290
DenverWashington, D.C.
DEN - DCA
DENDCA
Denver Intl
Sat 8/22
11:37 pm-7:58 am
1 stop6h 21m
Washington, D.C. Reagan-National
Thu 8/27
2:25 pm-10:42 pm
1 stop10h 17m
$306
DenverWashington, D.C.
DEN - DCA
DENDCA
Denver Intl
Tue 8/25
11:37 pm-12:01 pm
1 stop10h 24m
Washington, D.C. Reagan-National
Thu 8/27
2:25 pm-10:42 pm
1 stop10h 17m
$306
DenverPhiladelphia
DEN - PHL
DENPHL
Denver Intl
Tue 9/22
1:45 pm-7:25 pm
Nonstop3h 40m
Philadelphia
Tue 9/29
8:00 am-10:02 am
Nonstop4h 02m
$307
DenverBaltimore
DEN - BWI
DENBWI
Denver Intl
Fri 11/6
1:55 pm-5:40 am
2 stops13h 45m
Baltimore/Washington
Wed 11/11
7:00 am-10:50 pm
2 stops17h 50m
$313
DenverPhiladelphia
DEN - PHL
DENPHL
Denver Intl
Wed 12/2
5:55 pm-11:20 pm
Nonstop3h 25m
Philadelphia
Mon 12/7
5:05 am-7:25 am
Nonstop4h 20m
$314
DenverPhiladelphia
DEN - PHL
DENPHL
Denver Intl
Wed 9/23
1:45 pm-7:25 pm
Nonstop3h 40m
Philadelphia
Mon 9/28
8:00 am-10:02 am
Nonstop4h 02m
$314
DenverWashington, D.C.
DEN - IAD
DENIAD
Denver Intl
Wed 8/26
8:00 am-1:29 pm
Nonstop3h 29m
Washington, D.C. Dulles Intl
Mon 8/31
8:15 am-10:09 am
Nonstop3h 54m
$319
DenverWashington, D.C.
DEN - IAD
DENIAD
Denver Intl
Fri 10/16
6:00 am-11:25 am
Nonstop3h 25m
Washington, D.C. Dulles Intl
Sun 10/18
10:34 pm-12:30 am
Nonstop3h 56m
$319
DenverWashington, D.C.
DEN - IAD
DENIAD
Denver Intl
Thu 10/22
3:45 pm-9:11 pm
Nonstop3h 26m
Washington, D.C. Dulles Intl
Sat 10/24
5:27 pm-7:30 pm
Nonstop4h 03m
$319
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Colorado to Maryland
Have a flexible travel schedule? Discover the best time to fly to Maryland from Colorado with our price prediction graph.
DEN-BWI
COS-IAD
DEN-IAD
COS-PHL
DEN-PHL
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Colorado to Maryland
USCO-USMD
DEN-BWI
COS-IAD
DEN-IAD
COS-PHL
What is the cheapest month to book a flight from Colorado to Maryland?
Currently, September is the cheapest month in which you can book a flight from Colorado to Maryland (average of $305). Flying from Colorado to Maryland in June is currently the most expensive (average of $503). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from CO to MD?
Find hourly flight availability from Colorado to Maryland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 31, 2026.
One of the essential ways to save on airfare from Colorado to Maryland is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the afternoon could potentially save you up to 35% on airfare.
Weekly flight availability from Colorado to Maryland
Explore weekly flight availability from Colorado to Maryland. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 31, 2026.
The most flights from USCO to USMD are scheduled on a Thursday (21 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (2 on average).
How much does it cost to fly round-trip from Colorado to Maryland?
Airfare is typical for this route at the moment.
Colorado to Maryland flights typically cost between $234 and $428 in August.The cheapest round-trip price found within the last 5 days was $269 on Frontier (Aug 18-Aug 19).
How far ahead should I book a flight from Colorado to Maryland?
To ensure you get the cheapest price possible for a flight from Colorado to Maryland, you should look to book at least 53 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest day to fly from Colorado to Maryland?
Use this chart to determine the cheapest time to fly round-trip from Colorado to Maryland. Price data was last updated on July 25, 2026.
Travelers seeking maximum savings on their Colorado to Maryland flight should consider departing on Thursday at noon when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Reviews of airlines servicing Maryland
Get insights into the airlines that provide service to Maryland. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Maryland. Reviews last updated July 31, 2026.
See what other customers who have flown with Southwest,Delta, andUnited Airlines from Colorado to Maryland have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.5
Overall
8.0
Food
7.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentJoseph,Sep 2023
LAX - BWI
Entertainment
7.5
Overall
8.0
Food
7.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentJoseph,Sep 2023
LAX - BWI
Entertainment
7.5
Overall
8.0
Food
7.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentJoseph,Sep 2023
LAX - BWI
Entertainment
7.5
Overall
8.0
Food
7.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentJoseph,Sep 2023
LAX - BWI
Entertainment
7.5
Overall
8.0
Food
7.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentJoseph,Sep 2023
LAX - BWI
Entertainment
7.5
Overall
8.0
Food
7.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentJoseph,Sep 2023
LAX - BWI
Related info for your journey
Find useful and relevant information for your journey from Colorado to Maryland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Colorado to Maryland
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Maryland by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Colorado to Maryland by cabin class
Find flights from Colorado to Maryland, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Colorado and Maryland flights
Browse other Colorado and Maryland flight options. Last updated on July 31, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Find a return flight route from Maryland
Find the right flight back to Colorado after your stay in Maryland
Colorado to Maryland flights
Consider these flights traveling from Colorado to Maryland.
Top 6 airlines flying from Colorado to Maryland
Discover the top 6 airlines that operate flights from Colorado to Maryland. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 31, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$124 | Average$263 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$204 | Average$536 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$251 | Average$512 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$253 | Average$441 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$256 | Average$483 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$280 | Average$363 | FlexibilityNo cancel fee | On-time62% |